CN106395021B - A kind of metal strapper automatic control system and control method - Google Patents
A kind of metal strapper automatic control system and control method Download PDFInfo
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- CN106395021B CN106395021B CN201610375677.2A CN201610375677A CN106395021B CN 106395021 B CN106395021 B CN 106395021B CN 201610375677 A CN201610375677 A CN 201610375677A CN 106395021 B CN106395021 B CN 106395021B
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- cylinder
- control
- strapper
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- air motor
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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
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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
- B65B13/00—Bundling articles
- B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
- B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
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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
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
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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
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
- B65B13/24—Securing ends of binding material
- B65B13/30—Securing ends of binding material by deforming the overlapping ends of the strip or band
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
The present invention relates to a kind of metal strapper automatic control system and control methods, the metal strapper is steel strapping equipment, and mechanical system is made of Tape dispensers, guide device, levelling machine, moving frame, strapper head and the guide groove being arranged along steel band transport path；The control system of the metal strapper includes electric control system and atmospheric control, touch screen, detecting signal unit, speed control unit, pneumatic control unit and the emergency run-down unit that wherein electric control system is connected by master controller and respectively with master controller form, and atmospheric control includes air compression station, air compressor machine and pneumatic operated valve platform.The present invention is using PLC program and relay logic combination control, a.c.frequency converting control, realization send band, promptly, take-up, tightening, snap fastener, the overall processes such as cut-out automatically control, it realizes action process real time monitoring and efficient automatic enlacement packaging, substantially increases the degree of automation and performance of metal strapper.
Description
Technical field
The present invention relates to metal strapper technical field more particularly to a kind of use electric automatic control and pneumatic control phases
In conjunction with metal strapper complex automatic control system and control method.
Background technology
Fully-automatic metal strapper is the important equipment on modern steel manufacturing enterprise tandem rolling baling line, and performance is good and bad straight
It connects and influences packaging quality, large iron and steel enterprise strapper market is occupied by state company such as America and Europes always for a long time for many years.I
State to tie up production line entire package of low quality, many enterprises are still using semi-automatic or hand press-packing equipment, electric-controlled
System part mostly is realized using the actuation of relay contact, there is high failure rate, maintenance is big the defects of, production efficiency
Relatively low, human resources waste, packing control precision is not high, ties up the degree of automation also far from meeting modern production work
The needs of skill.
Pneumatic gearing is simple with component structure, manufacture is easy, is swift in motion, safeguards that simple, pipeline is not easy to plug, to work
The advantages that making good environmental adaptability when especially working in harsh environment, can more embody its safety and reliability.To understand
The technical barrier that certainly packing control precision and production efficiency cannot be taken into account, realization tie up process Automatic Control, pneumatically with electricity
It is imperative in strapper that gas automatic Synthesis control new solution is applied.
Invention content
The present invention provides a kind of metal strapper automatic control system and control methods, creatively will pneumatically with electrically
Automatic Synthesis controls New technical use in metal automatic flexible strapping machine, realizes that action process is switched fast control；Using PLC program and
Relay logic combination control, a.c.frequency converting control, realization send band, promptly, take-up, tightening, snap fastener, the overall processes such as cut-out it is automatic
Control；Advanced intelligent testing technology and human-computer interaction interface are, it can be achieved that action process monitors in real time and efficiently ties up packet automatically
Dress, substantially increases the degree of automation and performance of metal strapper.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of metal strapper automatic control system, the metal strapper are steel strapping equipment, and mechanical system is by edge
Tape dispensers, guide device, levelling machine, moving frame, strapper head and the guide groove composition of steel band transport path setting；The gold
The control system for belonging to strapper includes electric control system and atmospheric control, wherein electric control system by master controller and
Touch screen, detecting signal unit, speed control unit, pneumatic control unit and the emergent stopping list being connected respectively with master controller
Member composition, speed control unit connect moving frame control terminal with variable-frequency motor additionally by frequency converter；Atmospheric control packet
Include air compression station, air compressor machine and pneumatic operated valve platform, the control terminal of each pneumatic operated valve is separately connected pneumatic control in air compressor machine and pneumatic operated valve platform
Unit processed, air compression station connect air motor and two-in-one gas in strapper head by pneumatic line with corresponding pneumatic operated valve
Cylinder sets main air valve on pneumatic line；Strapper head includes air motor, feed roller, two-in-one cylinder and snap fastener unit, wherein
Feed roller is driven by air motor by gearbox, and snap fastener unit is driven by two-in-one cylinder；It is equipped at strapper head multiple
The output end of limit switch, limit switch is separately connected detecting signal unit.
The air motor is equipped with 4 air source control interfaces of A, B, H, L, and wherein A, B gas source interface is changed for air motor
To control, H, L air source control interface are for air motor high speed or the control that slowly runs.
The overall structure that the two-in-one cylinder is made of connected big cylinder and small cylinder, the both sides of big cylinder are
Rod chamber, small cylinder side are rod chamber, and the other side is rodless cavity；The upside cylinder rod of big cylinder and one end of connecting rod are hinged, even
The other end of bar is hinged with the tail portion of snap fastener unit, hinged with one end of swing rod in the middle part of connecting rod, and the other end of swing rod is fixing end；
Cylinder rod is connect with the cylinder rod of small cylinder on the downside of big cylinder；It is set below snap fastener unit and send band limit switch, stretched out along big cylinder cylinder rod
Direction precedence is equipped with limit switch one, limit switch two and limit switch three, and each limit switch is separately connected signal detection list
Member.
The guide groove bottom sets mobile guide groove and walking beam, and mobile guide groove can move with walking beam and can match with guide groove and be combined
Integral C-shaped guide barrel construction, the open side of C-shaped guide barrel construction is towards snap fastener unit.
The master controller is Siemens CPU315-2DP type PLC, and touch screen is Siemens's touch screen, and frequency converter is
MM440 frequency converters, master controller are connected by Profibus-DP networks and touch screen communication.
Based on a kind of control method of metal strapper automatic control system, include the following steps：
1) required technological parameter is set by touch screen；The steel band tied up is drawn by Tape dispensers, through guide device
Moving frame is reached after correcting, levelling machine smoothing, speed control unit controls moving frame by frequency converter and variable-frequency motor and moves
It is dynamic, steel band is sent at feed roller, is compressed steel band with the pinch roller that feed roller is correspondingly arranged；The rotation direction and speed of feed roller
Degree is controlled by air motor by gearbox；
2) commencing signal is tied up in master controller transmission, and walking beam drives mobile guide groove to movement composition C-shaped guide groove at guide groove
Structure, and the object that is tied on mobile guide groove is sent in C-shaped guide barrel construction in place, start to tie up；
3) master controller combines control mode by PLC program and relay logic and controls air source control interface A and H correspondence
Solenoid valve start, air motor forward direction high-speed rotation is sent into C after steel band is passed through swage and snap fastener unit by feed roller
In shape guide barrel construction, steel band is moved along C-shaped guide barrel construction, and snap fastener unit is reentered after a week around object is tied；Band is sent to limit
After bit switch detects that steel band is taken the lead, start timer, while master controller controls air source control interface B and L by relay
Corresponding solenoid valve starts, and air motor holding rotates forward, and the compressed air require into air motor reduces, and system is by height
Speed send carrier state to be transferred to low speed and send carrier state；In snap fastener unit, steel band takes the lead to overlap with subsequent steel band, overlapping portion
The length divided is controlled by timer, and air motor stops gas supply after length of overlapped part reaches setting length, and system stopping is sent
Band；
4) the big cylinder both sides rod chamber in two-in-one cylinder empties, and small cylinder rodless cavity air inlet, small cylinder cylinder rod pushes away
It moves big cylinder piston to move up, cylinder rod drives the pawl of stinging in snap fastener unit to enter promptly position on the upside of big cylinder, touches simultaneously
Limit switch two, stings pawl by main controller controls and catches and be tied the steel band of beyond the region of objective existence side, close to mobile cutting knife；
5) master controller combines control mode by PLC program and relay logic and controls air source control interface B and H correspondence
Solenoid valve start, steel band pulled back by feed roller and pinch roller and taken up in quilt by the reversed high-speed rotation of air motor
High speed take-up is realized on the outside of bundle；After the high speed take-up time by setting, master controller controls air source control by relay
The corresponding solenoid valve of interface A and L processed starts, and air motor holding rotates backward, while entering the compressed air stream of air motor
Amount reduces, and system switchs to low speed by high speed take-up and tightens；After the tightening force for reaching setting, the air pressure in air motor is kept not
Become, ensures the tightening force between steel strip cutting；
6) in two-in-one cylinder big cylinder downside rod chamber air inlet, big cylinder piston continues to move up, big cylinder cylinder
The pawl of stinging of bar control snap fastener unit catches steel band and closure securely, stings pawl and stings mould cooperation and complete to detain, mobile cutting knife is released
Cut steel band；Mobile cutting knife stopping acts after cylinder rod touches limit switch three on the upside of big cylinder, returns to original position；
7) in two-in-one cylinder big cylinder upside rod chamber air inlet, big cylinder piston moves down, and cylinder rod is touched on the upside of big cylinder
For the moment, air motor stops gas supply to dynamic limit switch；Big cylinder piston and small cylinder piston continue to move down return-to-zero position, snap fastener list
Stinging pawl and stinging mould in member also returns to home position；So far one-step bundling process is completed.
Compared with prior art, the beneficial effects of the invention are as follows：
1) present invention integrates high-new Numeric Control Technology, alternating frequency conversion technique, intelligent testing technology and human-computer interaction technology, innovation
Using pneumatic control is combined with electrical automatic Synthesis control new technology, PLC (programmable controller) programs and relay logic newly
Technology is applied to enlacement packaging industry, realizes real time monitoring and efficiently ties up automatically；
2) present invention has broken offshore company's technical monopoly long-term to domestic fully-automatic metal strapper, has filled up the country
It is general to solve domestic traditional strapper in the pneumatic blank in the control new technology research and development of electrical automatic Synthesis for full-automatic binding machine
The problem that cannot be taken into account all over existing packing control precision and efficiency, is suitble in steel, metal manufacture, sheet fabrication, logistics etc.
Enlacement packaging industry promotion and application have the great prospect of marketing.
Description of the drawings
Fig. 1 is the structural schematic diagram of metal strapper automatic control system of the present invention.
Fig. 2 a are air motor control air source connection diagrams one of the present invention.(positive high speed)
Fig. 2 b are air motor control air source connection diagrams two of the present invention.(positive low speed)
Fig. 2 c are air motor control air source connection diagrams three of the present invention.(reversed high speed)
Fig. 2 d are air motor control air source connection diagrams four of the present invention.(reversed low speed)
Fig. 3 a are control principle block diagrams when system high-speed of the present invention send band.
Fig. 3 b are control principle block diagrams when system low speed of the present invention send band.
Control principle block diagram when Fig. 3 c are system high-speed take-ups of the present invention.
Control principle block diagram when Fig. 3 d are system low speed tightenings of the present invention.
Fig. 4 a are two-in-one cylinder movement schematic diagrames one of the present invention.(big cylinder and small cylinder piston are in zero-bit)
Fig. 4 b are two-in-one cylinder movement schematic diagrames two of the present invention.(big cylinder cylinder rod triggers limit switch when releasing
Two)
Fig. 4 c are two-in-one cylinder movement schematic diagrames three of the present invention.(big cylinder cylinder rod triggers limit switch when releasing
Three)
Fig. 4 d are two-in-one cylinder movement schematic diagrames four of the present invention.(big cylinder cylinder rod triggers limit switch when withdrawing
One)
In figure：1. 5. strapper head of Tape dispensers 2. guide device, 3. levelling machine, 4. moving frame, 51. pneumatic horse
It is sent up to 52. feed roller, 53. limit switch, 531. limit switch, one 532. limit switch, 2 533. limit switch 3 534.
57. swage of band limit switch 54. two-in-one cylinder, 55. snap fastener unit, 56. pinch roller, 6. guide groove 7. moves guide groove 8.
94. pneumatic operated valve platform of walking beam 9. atmospheric control, 91. air compression station, 92. air compressor machine, 93. main air valve, 10. electrical control system
It unites 101. master controller, 102. detecting signal unit, 103. speed control unit, 104. pneumatic control unit, 105. frequency converter
106. 107. emergent stopping control system of touch screen, 11. variable-frequency motor 12. is tied object
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of metal strapper automatic control system, the metal strapper is steel strapping equipment, machine
Tool system is by the Tape dispensers 1, guide device 2, levelling machine 3, moving frame 4, the strapper head 5 that are arranged along steel band transport path
It is formed with guide groove 6；The control system of the metal strapper includes electric control system 10 and atmospheric control 9, wherein electrically
Touch screen 106 that control system 10 is connected by master controller 101 and respectively with master controller 101, detecting signal unit 102, speed
It spends control unit 103, pneumatic control unit 104 and emergency run-down unit 107 to form, speed control unit 103 is additionally by change
Frequency device 105 and variable-frequency motor 11 connect 4 control terminal of moving frame；Atmospheric control 9 is gentle including air compression station 91, air compressor machine 92
Dynamic valve platform 94, the control terminal of each pneumatic operated valve is separately connected pneumatic control unit 104, pneumatics in air compressor machine 92 and pneumatic operated valve platform 94
It stands and 91 connects air motor 51 and two-in-one cylinder 54 in strapper head 5, gas with corresponding pneumatic operated valve by pneumatic line
Main air valve 93 is set on dynamic pipeline；Strapper head 5 includes air motor 51, feed roller 52, two-in-one cylinder 54 and snap fastener unit
55, wherein feed roller 52 is driven by air motor 51 by gearbox, and snap fastener unit 55 is driven by two-in-one cylinder 54；Strapper
Multiple limit switches 53 are equipped at head 5, the output end of limit switch 53 is separately connected detecting signal unit 102.
The air motor 51 is equipped with 4 air source control interfaces of A, B, H, L, and wherein A, B gas source interface is used for air motor
51 commutation controls, H, L air source control interface are for 51 high speed of air motor or the control that slowly runs.
The overall structure that the two-in-one cylinder 54 is made of connected big cylinder and small cylinder, the both sides of big cylinder are equal
For rod chamber, small cylinder side is rod chamber, and the other side is rodless cavity；The upside cylinder rod of big cylinder and one end of connecting rod are hinged,
The other end of connecting rod is hinged with the tail portion of snap fastener unit, hinged with one end of swing rod in the middle part of connecting rod, and the other end of swing rod is to fix
End；Cylinder rod is connect with the cylinder rod of small cylinder on the downside of big cylinder；55 lower section of snap fastener unit, which is set, send band limit switch 534, along big cylinder
Cylinder rod stretches out direction precedence and is equipped with limit switch 1, limit switch 2 532 and limit switch 3 533, each limit switch point
Other connection signal detection unit 102.
6 bottom of the guide groove sets mobile guide groove 7 and walking beam 8, and mobile guide groove 7 can move with walking beam 8 and can be with guide groove 6
With being combined into whole C-shaped guide barrel construction, the open side of C-shaped guide barrel construction is towards snap fastener unit 55.
The master controller 101 is Siemens CPU315-2DP type PLC, and touch screen 106 is Siemens's touch screen, frequency converter
105 be MM440 frequency converters, and master controller 101 is connected by Profibus-DP networks and the communication of touch screen 106.
Based on a kind of control method of metal strapper automatic control system, include the following steps：
1) required technological parameter is set by touch screen 106；The steel band tied up is drawn by Tape dispensers 1, through correcting
2 correcting of device, levelling machine 3 reach moving frame 4 after smoothing, and speed control unit 103 passes through frequency converter 105 and variable-frequency motor 11
It controls moving frame 4 to move, steel band is sent at feed roller 52, the pinch roller 56 being correspondingly arranged with feed roller 52 is by steel band pressure
Tightly；The rotation direction and speed of feed roller 52 are controlled by air motor 51 by gearbox；
2) commencing signal is tied up in the transmission of master controller 101, and walking beam 8 drives mobile guide groove 7 to movement composition C at guide groove 6
Shape guide barrel construction, and the object 12 that is tied on mobile guide groove 7 is sent in C-shaped guide barrel construction in place, start to tie up；
3) master controller 101 combines control mode by PLC program and relay logic and controls air source control interface A and H
Corresponding solenoid valve starts, and steel band is passed through swage 57 and snap fastener by the positive high-speed rotation of air motor 51 by feed roller 52
It is sent into C-shaped guide barrel construction after unit 55, steel band is moved along C-shaped guide barrel construction, is reentered after a week around object 12 is tied
Snap fastener unit 55；After sending band limit switch 534 to detect that steel band is taken the lead, start timer, while master controller 101 passes through relay
Device controls the corresponding solenoid valve of air source control interface B and L and starts, and the holding of air motor 51 rotates forward, into air motor 51
Compressed air require reduce, system send carrier state by sending carrier state to be transferred to low speed at a high speed；In snap fastener unit 55, steel band is taken the lead
It overlaps with subsequent steel band, the length of lap is controlled by timer, and length of overlapped part reaches setting length
Air motor 51 stops gas supply afterwards, and band is sent in system stopping；
4) the big cylinder both sides rod chamber in two-in-one cylinder 54 empties, small cylinder rodless cavity air inlet, small cylinder cylinder rod
Big cylinder piston is pushed to move up, cylinder rod drives the pawl of stinging in snap fastener unit 55 to enter promptly position on the upside of big cylinder, simultaneously
Limit switch 2 532 is touched, pawl is stung by the control of master controller 101 and catches the steel band being tied on the outside of object 12, is cut close to movement
Knife；(as shown in Figure 4 b)
5) master controller 101 combines control mode by PLC program and relay logic and controls air source control interface B and H
Corresponding solenoid valve starts, and 51 reversed high-speed rotation of air motor is pulled back steel band by feed roller 52 and pinch roller 56
And it takes up and is being tied 12 outside realization high speed take-up of object；After the high speed take-up time by setting, master controller 101 by after
The corresponding solenoid valves of electrical equipment control air source control interface A and L start, and the holding of air motor 51 rotates backward, while entering pneumatic
The compressed air require of motor 51 reduces, and system switchs to low speed by high speed take-up and tightens；After the tightening force for reaching setting, pneumatic horse
It is remained unchanged up to the air pressure in 51, ensures the tightening force between steel strip cutting；
6) in two-in-one cylinder 54 big cylinder downside rod chamber air inlet, big cylinder piston continues to move up, big cylinder
The pawl of stinging of cylinder rod control snap fastener unit 55 catches steel band and closure securely, stings pawl and pressing mold cooperation is completed to detain, mobile cutting knife
It releases and cuts steel band；Mobile cutting knife stopping acts after cylinder rod touches limit switch 3 533 on the upside of big cylinder, returns to original position；(as schemed
Shown in 4c)
7) in two-in-one cylinder 54 big cylinder upside rod chamber air inlet, big cylinder piston moves down, cylinder rod on the upside of big cylinder
When shake-up limit switch 1 (as shown in figure 4d), air motor 51 stops gas supply；Big cylinder piston and small cylinder piston continue
It moves down and returns to zero-bit (as shown in fig. 4 a), stinging pawl and stinging mould in snap fastener unit 55 also returns to home position；So far one is completed
It is secondary to tie up process.
Metal strapper of the present invention selects " automatic " mould under production status in use, first in control interface
Required technological parameter is arranged by touch screen 106 in formula, presses " tying up startup " button, into tying up production procedure automatically.Specifically
Technological process is as follows：Moving frame 4 fast forwards through → at a slow speed advance → steel band be sent to position → transmission and tie up signal → movement guide groove 7
Advance → send band → low speed that band → steel band is sent to be overlapped after a week around object 12 is tied at a high speed → in place to sting pawl firmly grasp take the lead → at a high speed
→ low speed take-up is simultaneously tightened, and → moving 7 returns of guide groove, → shearing snap fastener → stings pawl to return → pick and detain → and ties up end, complete for take-up
One working cycles.
Electric control system 10 of the present invention is the core of entire metal strapper automatic control system, logical by network
News control controls new technology, pneumatically with electrical automatic Synthesis control new technology using PLC program and relay logic combination, real
The speed governing operation and master controller 101 of existing moving frame 4 control the logical combination of atmospheric control 9, and then control and tie up
Machine head 5 acts, and the functions such as band, take-up, tightening, snap fastener and cut-out are sent in completion, and realizes action process real time monitoring and efficient
Automatically it ties up.
Atmospheric control 9 of the present invention is mainly used for controlling 5 action of strapper head, and various productions are tied up using steel band
Product execute under the control of master controller 101 and send the actions such as band, take-up, tightening, snap fastener and cut-out, functions as follows：
Air motor 51：For driving gearbox transmission, and then drive feed roller 52.In the present invention just with air motor 51
It is take-up for sending band when turning, when reversion.Feed roller 52 is high-speed rotating when sending band and high transmitting-receiving belt at a high speed, is sent in low speed
Band and low speed rotate at a slow speed when tightening.Low speed tightening can generate larger tightening force, and steel band tightening force is pneumatic by controlling
The air pressure of motor 51 is adjusted.
Feed roller 52 and pinch roller 56：It is in direct contact and steel band is driven to move, it is main to complete to send band, take-up and tightening dynamic
Make.
Swage 57：For being straightened steel band, steel band is enable successfully to be conveyed.
Two-in-one cylinder 54：For realizing promptly, snap fastener and cut-out three action.The small cylinder of two-in-one cylinder 54 is fixed
Inside big cylinder, for catching steel band head；Big cylinder in two-in-one cylinder 54, which moves in snap fastener unit 55, stings pawl,
It bites steel band completion and does button and steel strip cutting action, small cylinder helps out, and action can be made more accurate and reliable.It is tying up
Other 2 cylinders are additionally provided in machine head 5, one for controlling the mobile door between strapper head 5 and guide groove 6, door cylinder
It is fixed on face behind the door, door is closed when sending band, steel band is made to enter snap fastener unit 55；Take-up front opening door, allows steel band to send out；Separately
One cylinder is used to closure springing into snap fastener mechanism.
Snap fastener unit 55：Including a fixed blade and a moving blade, it is dynamic that two blades fits realize that steel band is cut
Make；Pawl is stung for biting steel band in snap fastener unit 55, stings mould for detaining.Snap fastener unit 55 is the conventional knot of metal strapper
Structure is not added with repeats herein.
In the present invention, the control of air motor 51 is the technological core of entire 5 pneumatic control of strapper head.Air motor
4 51 shared A, B, H (high speed), L (low speed) air source control interfaces.Air intake can be A or B.When A is air inlet, B is
Gas port, vice versa.Due to the particularity that air motor 51 constructs, when from going to low speed at a high speed or going to high speed from low speed,
It can switch between H and L, the direction of rotation of air motor 51 can also change.So the electrical control of air motor 51 with
Traditional Motor Control principle is different, in order not to change 51 direction of rotation of air motor, must switch control while speed governing
The corresponding solenoid valve of gas source interface A and B processed.In the present invention, controlled using PLC program and relay logic combination control new technology
The switching of air-operated solenoid valve processed, the method are suitable for all control systems using this function air motor 51.
With reference to 51 air source control principle of air motor and PLC control principles, briefly introduces and patrolled using relay
Combination control new technology is collected to control the process of air-operated solenoid valve.Q4.0 is PLC digital output points wherein in PLC program, is led to
The solenoid valve of electrical equipment control of adopting gas source interface A, for realizing that system high-speed send band or low speed tightening function；Q4.1 is PLC numbers
Word amount output point controls the solenoid valve of gas source interface B by relay, for realizing that band work(is sent in system high-speed take-up or low speed
Energy；Q5.0 is PLC digital output points, the solenoid valve of gas source interface H is controlled by relay, for realizing that air motor 51 is high
Fast function；Q5.1 is PLC digital output points, the solenoid valve of gas source interface L is controlled by relay, for realizing air motor
51 speed functions.It uses PLC program and relay logic to combine control technology and realizes that high speed send band, low speed that band, high speed is sent to receive
Band, the control process of low speed tightening are as follows：
As shown in Figure 2 a, when system gas source interface A and H air inlets simultaneously, the positive high-speed cruising of air motor 51 is realized high
Speed send band function.As shown in Figure 3a, when satisfaction high speed send conditional (i.e. PLC bosoms relay M10.1 is obtained electric), PLC
Output point Q4.0 obtains electric, and relay K4.0 obtains electric, and the solenoid valve of control gas source interface A obtains electric；PLC output points Q5.0 is obtained simultaneously
Electricity, relay K5.0 obtain electric, and the solenoid valve of control gas source interface H obtains electric, and then passes through PLC program and relay logic combination control
System realizes that high speed send band function.
As shown in Figure 2 b, when function gas source interface B and L air inlets simultaneously, the positive low speed operation of air motor 51 is realized low
Speed send band function.As shown in Figure 3b, when satisfaction high speed send conditional (i.e. PLC bosoms relay M10.3 is obtained electric), PLC
Output point Q4.1 obtains electric, and relay K4.1 obtains electric, and the solenoid valve of control gas source interface B obtains electric；PLC output points Q5.1 is obtained simultaneously
Electricity, relay K5.1 obtain electric, and the solenoid valve of control gas source interface L obtains electric, and then passes through PLC program and relay logic combination control
System realizes that low speed send band function.
As shown in Figure 2 c, when system gas source interface B and H air inlets simultaneously, 51 reversed high-speed cruising of air motor is realized high
Speed send band function.As shown in Figure 3c, when satisfaction high speed send conditional (i.e. PLC bosoms relay M10.7 is obtained electric), PLC
Output point Q4.1 obtains electric, and relay K4.1 obtains electric, and the solenoid valve of control gas source interface B obtains electric；PLC output points Q5.0 is obtained simultaneously
Electricity, relay K5.0 obtain electric, and the solenoid valve of control gas source interface H obtains electric, and then passes through PLC program and relay logic combination control
System realizes high speed take-up function.
As shown in Figure 2 d, when system gas source interface A and L air inlets simultaneously, the operation of 51 reversed low speed of air motor is realized low
Speed tightening function.As shown in Figure 3d, when satisfaction high speed send conditional (i.e. PLC bosoms relay M11.1 is obtained electric), PLC
Output point Q4.0 obtains electric, and relay K4.0 obtains electric, and the solenoid valve of control gas source interface A obtains electric；PLC output points Q5.1 is obtained simultaneously
Electricity, relay K5.1 obtain electric, and the solenoid valve of control gas source interface L obtains electric, and then passes through PLC program and relay logic combination control
System realizes that low speed tightens function.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of metal strapper automatic control system, the metal strapper is steel strapping equipment, and mechanical system is by along steel
Tape dispensers, guide device, levelling machine, moving frame, strapper head with transport path setting and guide groove composition；Its feature
Be, the control system of the metal strapper includes electric control system and atmospheric control, wherein electric control system by
Master controller and the touch screen being connected respectively with master controller, detecting signal unit, speed control unit, pneumatic control unit and
Emergency run-down unit forms, and speed control unit connects moving frame control terminal with variable-frequency motor additionally by frequency converter；Pneumatically
Control system includes air compression station, air compressor machine and pneumatic operated valve platform, the control terminal difference of each pneumatic operated valve in air compressor machine and pneumatic operated valve platform
Connect pneumatic control unit, air compression station connected with corresponding pneumatic operated valve by pneumatic line air motor in strapper head and
Two-in-one cylinder sets main air valve on pneumatic line；Strapper head includes air motor, feed roller, two-in-one cylinder and snap fastener
Unit, wherein feed roller are driven by air motor by gearbox, and snap fastener unit is driven by two-in-one cylinder；At strapper head
Equipped with multiple limit switches, the output end of limit switch is separately connected detecting signal unit.
2. a kind of metal strapper automatic control system according to claim 1, which is characterized in that the air motor is set
There are 4 air source control interfaces of A, B, H, L, wherein A, B gas source interface to be used for air motor commutation control, H, L air source control interface
For air motor high speed or the control that slowly runs.
3. a kind of metal strapper automatic control system according to claim 1, which is characterized in that the two-in-one cylinder
The overall structure being made of connected big cylinder and small cylinder, the both sides of big cylinder are rod chamber, and small cylinder side is to have
Rod cavity, the other side are rodless cavity；The upside cylinder rod of big cylinder and one end of connecting rod are hinged, the other end and the snap fastener unit of connecting rod
Tail portion is hinged, hinged with one end of swing rod in the middle part of connecting rod, and the other end of swing rod is fixing end；Cylinder rod and small cylinder on the downside of big cylinder
Cylinder rod connection；Set below snap fastener unit and send band limit switch, along big cylinder cylinder rod stretch out direction precedence be equipped with limit switch one,
Limit switch two and limit switch three, each limit switch are separately connected detecting signal unit.
4. a kind of metal strapper automatic control system according to claim 1, which is characterized in that the guide groove bottom is set
Mobile guide groove and walking beam, mobile guide groove, which can move with walking beam and can match with guide groove, is combined into whole C-shaped guide barrel construction, C
The open side of shape guide barrel construction is towards snap fastener unit.
5. a kind of metal strapper automatic control system according to claim 1, which is characterized in that the master controller is
Siemens CPU315-2DP type PLC, touch screen are Siemens's touch screen, and frequency converter is MM440 frequency converters, and master controller passes through
Profibus-DP networks are connected with touch screen communication.
6. based on a kind of control method of metal strapper automatic control system described in claim 1, which is characterized in that including
Following steps：
1) required technological parameter is set by touch screen；The steel band tied up is drawn by Tape dispensers, through guide device correcting,
Moving frame is reached after levelling machine smoothing, speed control unit controls moving frame by frequency converter and variable-frequency motor and moves, will
Steel band is sent at feed roller, compresses steel band with the pinch roller that feed roller is correspondingly arranged；The rotation direction and speed of feed roller by
Air motor is controlled by gearbox；
2) commencing signal is tied up in master controller transmission, and walking beam drives mobile guide groove to form C-shaped guide barrel construction to movement at guide groove,
And be sent to the object that is tied on mobile guide groove in C-shaped guide barrel construction in place, start to tie up；
3) master controller combines control mode by PLC program and relay logic and controls the corresponding electricity of air source control interface A and H
Magnet valve starts, air motor forward direction high-speed rotation, and feeding C-shaped is led after steel band is passed through swage and snap fastener unit by feed roller
In slot structure, steel band is moved along C-shaped guide barrel construction, and snap fastener unit is reentered after a week around object is tied；Band limit is sent to open
After pass detects that steel band is taken the lead, start timer, while master controller controls air source control interface B and L by relay and corresponds to
Solenoid valve start, air motor holding rotate forward, into air motor compressed air require reduce, system is by sending at a high speed
Carrier state is transferred to low speed and send carrier state；In snap fastener unit, steel band takes the lead to overlap with subsequent steel band, lap
Length is controlled by timer, and air motor stops gas supply after length of overlapped part reaches setting length, and band is sent in system stopping；
4) the big cylinder both sides rod chamber in two-in-one cylinder empties, small cylinder rodless cavity air inlet, and small cylinder cylinder rod pushes big
Cylinder piston moves up, and cylinder rod drives the pawl of stinging in snap fastener unit to enter promptly position on the upside of big cylinder, while touching limit
Switch two, stings pawl by main controller controls and catches and be tied the steel band of beyond the region of objective existence side, close to mobile cutting knife；
5) master controller controls the corresponding solenoid valve of air source control interface B and H by PLC program and relay logic combination
Start, steel band is pulled back and taken up by feed roller and pinch roller and is being tied beyond the region of objective existence by the reversed high-speed rotation of air motor
Realize high speed take-up in side；After the high speed take-up time by setting, master controller by relay control air source control interface A and
The corresponding solenoid valves of L start, and air motor holding rotates backward, while the compressed air require for entering air motor reduces, and is
System switchs to low speed tightening by high speed take-up；After the tightening force for reaching setting, the air pressure in air motor remains unchanged, and ensures in steel
With the tightening force between cut-out；
6) in two-in-one cylinder big cylinder downside rod chamber air inlet, big cylinder piston continues to move up, big cylinder cylinder rod control
The pawl of stinging of snap fastener unit processed catches steel band and closure securely, stings pawl and stings mould cooperation and complete to detain, mobile cutting knife, which is released, cuts
Steel band；Mobile cutting knife stopping acts after cylinder rod touches limit switch three on the upside of big cylinder, returns to original position；
7) in two-in-one cylinder big cylinder upside rod chamber air inlet, big cylinder piston moves down, and cylinder rod touches limit on the upside of big cylinder
For the moment, air motor stops gas supply to bit switch；Big cylinder piston and small cylinder piston continue to move down return-to-zero position, in snap fastener unit
Sting pawl and sting mould and also return to home position；So far one-step bundling process is completed.
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| CN108454932A (en) * | 2018-03-14 | 2018-08-28 | 深圳大工人科技有限公司 | The method of battery modules dedicated full-automatic steel strip bundling machine and its bundling battery modules |
| CN109018482B (en) * | 2018-06-12 | 2020-04-21 | 石家庄市梓起机电设备科技有限公司 | Automatic steel belt binding machine |
| CN110316410A (en) * | 2019-08-09 | 2019-10-11 | 武汉斯蒂尔派科技有限公司 | It is a kind of for adjusting the device and maintenance unit of baler banding tightening force |
| CN112706972A (en) * | 2019-10-25 | 2021-04-27 | 顺启和(深圳)科技有限公司 | Strapping machine control method and device, strapping machine and storage medium |
| CN111003236A (en) * | 2019-12-16 | 2020-04-14 | 深圳大工人科技有限公司 | Full-automatic steel strip bundling machine special for battery module and bundling method thereof |
| BR102021015020A2 (en) | 2020-07-31 | 2022-02-15 | Max Co., Ltd. | binding machine |
| CN112075256B (en) * | 2020-09-10 | 2022-06-28 | 宁波欣仪伟业进出口有限公司 | Bundling control method, bundling control device, bundling control system, bundling device and readable storage medium |
| CN112923838B (en) * | 2021-01-22 | 2022-10-18 | 唐山迪安自动化设备有限公司 | Sensor for measuring position of steel belt in acid tank |
| CN112810871A (en) * | 2021-02-05 | 2021-05-18 | 杭州浙达精益机电技术股份有限公司 | Snap-in unit device with steel belt grabbing mechanism and technological method thereof |
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