CN106395021A - Automatic control system for metal binding machine and control method - Google Patents
Automatic control system for metal binding machine and control method Download PDFInfo
- Publication number
- CN106395021A CN106395021A CN201610375677.2A CN201610375677A CN106395021A CN 106395021 A CN106395021 A CN 106395021A CN 201610375677 A CN201610375677 A CN 201610375677A CN 106395021 A CN106395021 A CN 106395021A
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- China
- Prior art keywords
- cylinder
- control
- air
- strapper
- steel band
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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
Abstract
The invention relates to an automatic control system for a metal binding machine and a control method. The metal binding machine is a steel belt binding machine; a mechanical system comprises a belt distributor, a guiding device, a leveling machine, a moving rack, a binding machine head and a guiding chute which are arranged along a steel belt conveying path; the control system comprises an electrical control system and a pneumatic control system; the electrical control system comprises a master controller as well as a touch screen, a signal detection unit, a speed control unit, a pneumatic control unit and an emergency stop unit which are connected with the master controller respectively; and the pneumatic control system comprises an air compression station, an air compressor and a pneumatic valve stand. With the system and the method, programmable logic controller (PLC) procedure and relay logic combined control and alternating-current variable-frequency control are adopted, whole-process automatic control including belt conveying, firm grasping, belt winding, tightening, buckling, cutting and the like is realized, real-time monitoring of the action process and efficient and automatic binding and packaging are realized, and the automation degree and the use performance of the metal binding machine are greatly improved.
Description
Technical field
The present invention relates to metal strapper technical field, more particularly, to one kind are combined with pneumatic control using electric automatic control
Metal strapper complex automatic control system and control method.
Background technology
Fully-automatic metal strapper is the visual plant on modern steel manufacturing enterprise tandem rolling baling line, the good and bad directly shadow of its performance
Ring and arrive packaging quality, large iron and steel enterprise strapper market is occupied for a long time by state company such as America and Europes always for many years.China
Tie up production line entire package of low quality, a lot of enterprises are still using semi-automatic or hand press-packing equipment, its electrical control division
Dividing mostly is to be realized using the adhesive of relay contact, there is the defects such as fault rate is high, maintenance is big, and production efficiency is inclined
Low, human resources waste, and packing control precision is high, and it ties up automaticity also far from meeting modern production work
The needs of skill.
Pneumatic gearing has that component structure is simple, easy to manufacture, is swift in motion, safeguarding that simple, pipeline is not easily blocked, to work
The advantages of make good environmental adaptability, when particularly working in adverse circumstances, more can embody its safety and reliability.In order to
Solve the technical barrier that packing control precision and production efficiency can not be taken into account, realize tying up process Automatic Control, pneumatic with
It is imperative in strapper that electric automatic Synthesis control new solution to apply.
Content of the invention
The invention provides a kind of metal strapper automatic control system and control method, creatively will be pneumatic and electrically automatic
Comprehensive Control New technical use, in metal automatic flexible strapping machine, is realized course of action and is switched fast control；Using PLC program and continuing
Electrical equipment logical combination controls, a.c.frequency converting control, realize sending band, firmly grasp, take-up, tighten up, snap fastener, the overall process such as cut-out
Automatically control；Advanced intelligent testing technology and human-computer interaction interface, achievable course of action monitor in real time and efficiently automatically tying
Prick packaging, substantially increase automaticity and the serviceability of metal strapper.
In order to achieve the above object, the present invention employs the following technical solutions realization：
A kind of metal strapper automatic control system, described metal strapper is steel strapping equipment, and its mechanical system is by along steel band
The Tape dispenserses of transport path setting, guide device, levelling machine, moving frame, strapper head and guide groove composition；This gold
The control system 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 being connected with master controller respectively
Unit forms, and speed control unit connects moving frame control end additionally by frequency converter and variable-frequency motor；Atmospheric control
Including air compression station, air compressor machine and pneumatic operated valve platform, in air compressor machine and pneumatic operated valve platform the control end of each pneumatic operated valve connect respectively pneumatic
Control unit, air compression station passes through pneumatic line and corresponding pneumatic operated valve connects air motor and two-in-one gas in strapper head
Cylinder, pneumatic line sets main air valve；Strapper head includes air motor, feed roller, two-in-one cylinder and snap fastener unit,
Wherein feed roller is driven by gearbox by air motor, and snap fastener unit is by two-in-one air cylinder driven；It is provided with strapper head
Multiple limit switches, the output end of limit switch connects detecting signal unit respectively.
Described air motor is provided with 4 source of the gas control interfaces of A, B, H, L, and wherein A, B gas source interface is used for air motor
Commutation control, H, L source of the gas control interface is used for air motor high speed or the control that slowly runs.
The overall structure that described two-in-one cylinder is made up of connected big cylinder and little cylinder, the both sides of big cylinder have been bar
Chamber, little cylinder side is rod chamber, and opposite side is rodless cavity；The upside cylinder rod of big cylinder is hinged with one end of connecting rod, connecting rod
The other end hinged with the afterbody of snap fastener unit, hinged with one end of fork in the middle part of connecting rod, the other end of fork is fixing end；
On the downside of big cylinder, cylinder rod is connected with the cylinder rod of little cylinder；Set below snap fastener unit and send band limit switch, stretch out along big cylinder cylinder rod
Direction precedence is provided with limit switch one, limit switch two and limit switch three, and each limit switch connects signal detection list respectively
Unit.
Described guide groove bottom sets mobile guide groove and step rate, and mobile guide groove can move with step rate and can be whole with guide groove cooperation composition
The C-shaped guide barrel construction of body, the open side of C-shaped guide barrel construction is towards snap fastener unit.
Described master controller is Siemens's CPU315-2DP type PLC, and touch-screen is Siemens's touch-screen, and frequency converter is MM440
Frequency converter, master controller is passed through Profibus-DP network and is connected with touch-screen communication.
Based on a kind of control method of metal strapper automatic control system, comprise the steps：
1) technological parameter needed for being set by touch-screen；The steel band tied up is drawn by Tape dispenserses, leads through guide device
Just, reach moving frame after levelling machine smoothing, speed control unit passes through frequency converter and variable-frequency motor controls moving frame to move,
Steel band is delivered at feed roller, with the pinch roller that feed roller is correspondingly arranged, steel band is compressed；The rotation direction of feed roller and speed
Controlled by gearbox by air motor；
2) master controller sends and ties up commencing signal, and step rate drives mobile guide groove mobile composition C-shaped guide groove knot at guide groove
Structure, and the thing that is tied on mobile guide groove is delivered in place in C-shaped guide barrel construction, start to tie up；
3) master controller controls source of the gas control interface A corresponding with H by PLC program and relay logic combination control mode
Magnetic valve start, air motor forward direction high-speed rotation, by feed roller, steel band is passed through and sends into after swage and snap fastener unit
In C-shaped guide barrel construction, steel band moves along C-shaped guide barrel construction, reenters snap fastener unit around after be tied thing one week；Send
Band limit switch detects after steel band takes the lead, and starts timer, master controller passes through Control source of the gas control interface simultaneously
The corresponding magnetic valve of B and L starts, and air motor keeps rotating forward, and the compressed air require entering air motor reduces,
System send carrier state by sending at a high speed carrier state to proceed to low speed；In snap fastener unit, steel band takes the lead to overlap one with steel band below
Rise, the length of lap is controlled by timer, after length of overlapped part reaches preseting length, air motor stops supply,
System stops sending band；
4) the big cylinder both sides rod chamber in two-in-one cylinder all empties, little cylinder rodless cavity air inlet, and little cylinder cylinder rod promotes
Big cylinder piston moves up, and on the upside of big cylinder, cylinder rod drives the pawl of stinging in snap fastener unit to enter promptly position, touches limit simultaneously
Bit switch two, stings pawl by main controller controls and catches the steel band being tied beyond the region of objective existence side, press close to mobile cutting knife；
5) master controller controls source of the gas control interface B corresponding with H by PLC program and relay logic combination control mode
Magnetic valve start, the reverse high-speed rotation of air motor, steel band is pulled back and takes up in quilt by feed roller and pinch roller
High speed take-up is realized outside bundle；After the high speed take-up time setting, master controller passes through Control source of the gas control
The corresponding magnetic valve of interface A and L processed starts, and air motor keeps rotating backward, and simultaneously enters the compressed air of air motor
Flow reduces, and system switchs to low speed by high speed take-up and tightens up；After reaching the tightening force of setting, the air pressure in air motor keeps
Constant it is ensured that 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 rod
The pawl of stinging controlling snap fastener unit catches steel band and closure securely, stings pawl and pressing mold cooperation completes to detain, mobile cutting knife is released and cut
Disconnected steel band；On the upside of big cylinder, cylinder rod touches mobile cutting knife stopping action after limit switch three, returns in situ；
7) in two-in-one cylinder big cylinder upside rod chamber air inlet, big cylinder piston moves down, and on the upside of big cylinder, cylinder rod is touched
For the moment, air motor stops supply to limit switch；Big cylinder piston and small cylinder piston continue to move down return-to-zero position, snap fastener list
Stinging pawl and sting mould and also return to home position in unit；So far complete one-step bundling process.
Compared with prior art, the invention has the beneficial effects as follows：
1) the integrated high-new Numeric Control Technology of the present invention, alternating frequency conversion technique, intelligent testing technology and human-computer interaction technology, innovation
New technology, PLC (Programmable Logic Controller) program and relay logic is controlled to combine control using pneumatic and electric automatic Synthesis
New technology, is applied to enlacement packaging industry, realizes monitor in real time and efficiently automatically ties up；
2) present invention has broken offshore company's technical monopoly long-term to domestic fully-automatic metal strapper, has filled up domestic complete
Automatic flexible strapping machine controls the blank in new technology research and development in pneumatic and electric automatic Synthesis, solves domestic tradition strapper universal
The packing control precision existing and the difficult problem that can not take into account of efficiency, are suitable in iron and steel, metal manufacture, sheet fabrication, logistics etc.
Enlacement packaging industry promotion and application, have the great prospect of marketing.
Brief description
Fig. 1 is the structural representation of metal strapper automatic control system of the present invention.
Fig. 2 a is that air motor of the present invention controls source of the gas connection diagram one.(positive high speed)
Fig. 2 b is that air motor of the present invention controls source of the gas connection diagram two.(positive low speed)
Fig. 2 c is that air motor of the present invention controls source of the gas connection diagram three.(reversely at a high speed)
Fig. 2 d is that air motor of the present invention controls source of the gas connection diagram four.(reverse low speed)
Fig. 3 a is that system high-speed of the present invention send control principle block diagram during band.
Fig. 3 b is that system low speed of the present invention send control principle block diagram during band.
Fig. 3 c is control principle block diagram during system high-speed take-up of the present invention.
Fig. 3 d is control principle block diagram when system low speed of the present invention is tightened up.
Fig. 4 a is two-in-one cylinder action schematic diagram one of the present invention.(big cylinder and small cylinder piston are in zero-bit)
Fig. 4 b is two-in-one cylinder action schematic diagram two of the present invention.(when big cylinder cylinder rod is released, triggering limit switch two)
Fig. 4 c is two-in-one cylinder action schematic diagram three of the present invention.(when big cylinder cylinder rod is released, triggering limit switch three)
Fig. 4 d is two-in-one cylinder action schematic diagram four of the present invention.(when big cylinder cylinder rod withdraws, triggering limit switch one)
In figure：1. Tape dispenserses 2. guide device 3. levelling machine 4. moving frame 5. strapper heads 51. are pneumatic
Motor 52. feed roller, 53. limit switch, 531. limit switch, one 532. limit switch 2 533. limit switch three
534. send band limit switch 54. two-in-one cylinder 55. snap fastener unit, 56. pinch roller, 57. swage 6. guide groove 7.
Mobile guide groove 8. step rate, 9. atmospheric control, 91. air compression station, 92. air compressor machine, 93. main air valves 94. are pneumatic
Valve platform 10. electric control system, 101. master controller, 102. detecting signal unit 103. speed control unit 104.
Pneumatic control unit 105. frequency converter, 106. touch-screen, 107. emergent stopping control system 11. variable-frequency motor 12.
It is tied thing
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further：
As shown in figure 1, a kind of metal strapper automatic control system, described metal strapper is steel strapping equipment, its machinery
System is by the Tape dispenserses 1 arranging along steel band transport path, guide device 2, levelling machine 3, moving frame 4, strapper machine
5 and guide groove 6 form；The control system of this metal strapper includes electric control system 10 and atmospheric control 9,
The touch-screen 106 that wherein electric control system 10 is connected respectively by master controller 101 and with master controller 101, signal are examined
Survey unit 102, speed control unit 103, pneumatic control unit 104 and emergency run-down unit 107 to form, speeds control
Unit 103 connects moving frame 4 control end additionally by frequency converter 105 and variable-frequency motor 11；Atmospheric control 9 is wrapped
Include air compression station 91, air compressor machine 92 and pneumatic operated valve platform 94, the control end of each pneumatic operated valve in air compressor machine 92 and pneumatic operated valve platform 94
Connect pneumatic control unit 104 respectively, air compression station 91 passes through pneumatic line and corresponding pneumatic operated valve connects strapper head 5
In air motor 51 and two-in-one cylinder 54, pneumatic line sets main air valve 93；Strapper head 5 includes air motor
51st, feed roller 52, two-in-one cylinder 54 and snap fastener unit 55, wherein feed roller 52 pass through gearbox by air motor 51
Drive, snap fastener unit 55 is driven by two-in-one cylinder 54；It is provided with multiple limit switches 53 at strapper head 5, spacing
The output end of switch 53 connects detecting signal unit 102 respectively.
Described air motor 51 is provided with 4 source of the gas control interfaces of A, B, H, L, and wherein A, B gas source interface is for pneumatic
Motor 51 commutation control, H, L source of the gas control interface is used for air motor 51 high speed or the control that slowly runs.
The overall structure that described two-in-one cylinder 54 is made up of connected big cylinder and little cylinder, the both sides of big cylinder are
Rod chamber, little cylinder side is rod chamber, and opposite side is rodless cavity；The upside cylinder rod of big cylinder is hinged with one end of connecting rod,
The other end of connecting rod is hinged with the afterbody of snap fastener unit, hinged with one end of fork in the middle part of connecting rod, and the other end of fork is to fix
End；On the downside of big cylinder, cylinder rod is connected with the cylinder rod of little cylinder；Set below snap fastener unit 55 and send band limit switch 534, along greatly
Cylinder cylinder rod is stretched out direction precedence and is provided with limit switch 1, limit switch 2 532 and limit switch 3 533, each limit
Bit switch connects detecting signal unit 102 respectively.
Described guide groove 6 bottom sets mobile guide groove 7 and step rate 8, and mobile guide groove 7 can move with step rate 8 and can be with guide groove
The integral C-shaped guide barrel construction of 6 cooperation groups, the open side of C-shaped guide barrel construction is towards snap fastener unit 55.
Described master controller 101 is Siemens's CPU315-2DP type PLC, and touch-screen 106 is Siemens's touch-screen, frequency conversion
Device 105 is MM440 frequency converter, and master controller 101 is passed through Profibus-DP network and is connected with touch-screen 106 communication.
Based on a kind of control method of metal strapper automatic control system, comprise the steps：
1) required technological parameter is set by touch-screen 106；The steel band tied up is drawn, through correcting by Tape dispenserses 1
Moving frame 4 is reached, speed control unit 103 passes through frequency converter 105 and frequency conversion after device 2 correcting, levelling machine 3 smoothing
Motor 11 controls moving frame 4 mobile, and steel band is delivered to the pinch roller at feed roller 52, being correspondingly arranged with feed roller 52
Steel band is compressed by 56；The rotation direction of feed roller 52 and speed are controlled by gearbox by air motor 51；
2) master controller 101 sends and ties up commencing signal, and step rate 8 drives mobile guide groove 7 mobile composition at guide groove 6
C-shaped guide barrel construction, and the thing 12 that is tied on mobile guide groove 7 is delivered in place in C-shaped guide barrel construction, start to tie up；
3) master controller 101 passes through PLC program and relay logic combines control mode and controls source of the gas control interface A and H
Corresponding magnetic valve starts, the positive high-speed rotation of air motor 51, by feed roller 52, steel band is passed through swage 57 He
Send into after snap fastener unit 55 in C-shaped guide barrel construction, steel band moves along C-shaped guide barrel construction, around after be tied thing 12 1 weeks
Reenter snap fastener unit 55；Send band limit switch 534 to detect after steel band takes the lead, start timer, main control simultaneously
Device 101 passes through Control source of the gas control interface B and the corresponding magnetic valve of L starts, and air motor 51 keeps positive and turns
Dynamic, the compressed air require entering air motor 51 reduces, and system send carrier state by sending at a high speed carrier state to proceed to low speed；?
In snap fastener unit 55, steel band takes the lead to overlap with steel band below, and the length of lap is controlled by timer,
After length of overlapped part reaches preseting length, air motor 51 stops supply, and system stops sending band；
4) the big cylinder both sides rod chamber in two-in-one cylinder 54 all empties, little cylinder rodless cavity air inlet, little cylinder cylinder rod
Big cylinder piston is promoted to move up, on the upside of big cylinder, cylinder rod drives the pawl of stinging in snap fastener unit 55 to enter promptly position, with
When touch limit switch 2 532, controlled by master controller 101 and sting pawl and catch the steel band being tied thing 12 outside, press close to
Mobile cutting knife；(as shown in Figure 4 b)
5) master controller 101 passes through PLC program and relay logic combines control mode and controls source of the gas control interface B and H
Corresponding magnetic valve starts, the reverse high-speed rotation of air motor 51, by feed roller 52 and pinch roller 56 by steel band backward
Pull and take up and realize high speed take-up being tied outside thing 12；After the high speed take-up time setting, master controller 101
Started by Control source of the gas control interface A and the corresponding magnetic valve of L, air motor 51 keeps rotating backward, with
When enter the compressed air require of air motor 51 and reduce, system switchs to low speed by high speed take-up and tightens up；Reach drawing of setting
After clamp force, air pressure in air motor 51 keep constant it is ensured that 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
Cylinder rod controls the pawl of stinging of snap fastener unit 55 to catch steel band and closure securely, stings pawl and pressing mold cooperation completes to detain, movement is cut
Knife is released and is cut off steel band；On the upside of big cylinder, cylinder rod touches mobile cutting knife stopping action after limit switch 3 533, returns in situ；
(as illustrated in fig. 4 c)
7) in two-in-one cylinder 54 big cylinder upside rod chamber air inlet, big cylinder piston moves down, and on the upside of big cylinder, cylinder rod is touched
During dynamic limit switch 1 (as shown in figure 4d), air motor 51 stops supply；Big cylinder piston and small cylinder piston
Continue to move down and return to zero-bit (as shown in fig. 4 a), stinging pawl and sting mould and also return to home position in snap fastener unit 55；Extremely
This completes one-step bundling process.
When metal strapper of the present invention uses under production status, first in controlling interface, select " automatic " pattern,
Required technological parameter is arranged by touch-screen 106, presses " tying up startup " button, enter and automatically tie up production procedure.Tool
Body technology flow process is as follows：Moving frame 4 fast forwards through → at a slow speed advance → steel band deliver to position → transmission and tie up signal → movement and lead
Groove 7 advance put in place → send at a high speed band → low speed send band → steel band around be tied overlap after thing 12 1 weeks → sting pawl promptly take the lead →
High speed take-up → low speed take-up is simultaneously tightened up → is moved guide groove 7 and return → shear snap fastener → sting pawl and return → pick and detain → tie up end,
Complete working cycles.
Electric control system 10 of the present invention is the core of whole metal strapper automatic control system, by network communication
Control, control new technology, pneumatic and electric automatic Synthesis to control new technology using PLC program and relay logic combination, real
The speed governing operation of existing moving frame 4 and master controller 101 control to the logical combination of atmospheric control 9, and then control bundle
Bundle machine head 5 action, complete to send band, take-up, tighten up, the function such as snap fastener and cut-out, and realize course of action monitor in real time
Efficiently automatically tie up.
Atmospheric control 9 of the present invention is mainly used in controlling strapper head 5 action, ties up various products using steel band,
Under master controller 101 controls execution send band, take-up, tighten up, the action such as snap fastener and cut-out, its functions is as follows：
Air motor 51：For driving gearbox transmission, and then drive feed roller 52.In the present invention with air motor 51 just
As a example sending band when turning, it is take-up during reversion.Feed roller 52 is high-speed rotation when high speed send band and high transmitting-receiving belt, low
Speed send band and low speed to rotate at a slow speed when tightening up.Low speed is tightened up and can be produced larger tightening force, and steel band tightening force is by controlling
The air pressure of air motor 51 is adjusting.
Feed roller 52 and pinch roller 56：Directly contact simultaneously drives steel band to move, and mainly completes to send band, take-up and tighten up action.
Swage 57：For alignment steel band, steel band is enable successfully to be conveyed.
Two-in-one cylinder 54：For realize promptly, snap fastener and three actions of cut-out.The little 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 may move stinging in snap fastener unit 55
Pawl, bites steel band and completes to do button and steel strip cutting action, little cylinder helps out, and can make action more accurately and reliably.
It is additionally provided with other 2 cylinders in strapper head 5, one is used for controlling the movement between strapper head 5 and guide groove 6
Door, door cylinder is fixed on face behind the door, send closing door during band, makes steel band enter snap fastener unit 55；Take-up front opening door, makes
Steel band can be sent；Another cylinder is used for for closure springing into snap fastener mechanism.
Snap fastener unit 55：Comprise a fixing blade and a moving blade, two blades fit are realized steel band and cut off action；
Pawl of stinging in snap fastener unit 55 is used for biting steel band, stings mould and is used for detaining.Snap fastener unit 55 is the conventional knot of metal strapper
Structure, here is not added with repeating.
In the present invention, the control of air motor 51 is the technological core of whole strapper head 5 pneumatic control.Air motor
51 total A, B, H (at a high speed), 4 source of the gas control interfaces of L (low speed).Air intake can be A or B.When A be into
During gas port, B is gas outlet, and vice versa.Due to air motor 51 construction particularity, when from high speed go to low speed or
When low speed goes to high speed, can switch between H and L, the direction of rotation of air motor 51 also can change.So
The electrical control of air motor 51 is different from traditional Motor Control principle, in order to not change air motor 51 direction of rotation,
Must the corresponding magnetic valve of switching control gas source interface A and B while speed governing.In the present invention, using PLC program and continuing
Electrical equipment logical combination controls new technology controlling the switching of air-operated solenoid valve, the method be applied to all using the pneumatic horse of this function
Reach 51 control system.
With reference to air motor 51 source of the gas control principle and PLC control principle, briefly introduce and adopt relay logic
Combination controls new technology to control the process of air-operated solenoid valve.Wherein in PLC program, Q4.0 is PLC digital output point,
By the magnetic valve of Control gas source interface A, band or low speed is sent to tighten up function for realizing system high-speed；Q4.1 is
PLC digital output point, by the magnetic valve of Control gas source interface B, for realizing system high-speed take-up or low speed
Send band function；Q5.0 is PLC digital output point, by the magnetic valve of Control gas source interface H, for realizing
Air motor 51 high-speed functions；Q5.1 is PLC digital output point, by the magnetic valve of Control gas source interface L,
It is used for realizing air motor 51 speed functions.It realizes sending at a high speed using PLC program and relay logic combination control technology
Band, low speed send the control process that band, high speed take-up, low speed are tightened up as follows：
As shown in Figure 2 a, when system gas source interface A and H air inlet simultaneously, the positive high-speed cruising of air motor 51, realize
Send band function at a high speed.As shown in Figure 3 a, send at a high speed SNNP (i.e. PLC bosom relay M10.1 obtain electric) when meeting
When, PLC output point Q4.0 obtain electric, relay K4.0 obtain electric, control gas source interface A magnetic valve obtain electric；PLC simultaneously
Output point Q5.0 obtain electric, relay K5.0 obtain electric, control gas source interface H magnetic valve obtain electric, and then pass through PLC program
Combine with relay logic and control, realize sending band function at a high speed.
As shown in Figure 2 b, when function gas source interface B and L air inlet simultaneously, the positive low cruise of air motor 51, realize
Low speed send band function.As shown in Figure 3 b, send at a high speed SNNP (i.e. PLC bosom relay M10.3 obtain electric) when meeting
When, PLC output point Q4.1 obtain electric, relay K4.1 obtain electric, control gas source interface B magnetic valve obtain electric；PLC simultaneously
Output point Q5.1 obtain electric, relay K5.1 obtain electric, control gas source interface L magnetic valve obtain electric, and then pass through PLC program
Combine with relay logic and control, realize low speed and send band function.
As shown in Figure 2 c, when system gas source interface B and H air inlet simultaneously, the reverse high-speed cruising of air motor 51, realize
Send band function at a high speed.As shown in Figure 3 c, send at a high speed SNNP (i.e. PLC bosom relay M10.7 obtain electric) when meeting
When, PLC output point Q4.1 obtain electric, relay K4.1 obtain electric, control gas source interface B magnetic valve obtain electric；PLC simultaneously
Output point Q5.0 obtain electric, relay K5.0 obtain electric, control gas source interface H magnetic valve obtain electric, and then pass through PLC program
Combine with relay logic and control, realize high speed take-up function.
As shown in Figure 2 d, when system gas source interface A and L air inlet simultaneously, the reverse low cruise of air motor 51, realize
Low speed tightens up function.As shown in Figure 3 d, send at a high speed SNNP (i.e. PLC bosom relay M11.1 obtain electric) when meeting
When, PLC output point Q4.0 obtain electric, relay K4.0 obtain electric, control gas source interface A magnetic valve obtain electric；PLC simultaneously
Output point Q5.1 obtain electric, relay K5.1 obtain electric, control gas source interface L magnetic valve obtain electric, and then pass through PLC program
Combine with relay logic and control, realize low speed and tighten up function.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto, and appoints
What those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its send out
Bright design in addition equivalent or change, all should be included within the scope of the present invention.
Claims (6)
1. a kind of metal strapper automatic control system, described metal strapper is steel strapping equipment, and its mechanical system is by edge
The Tape dispenserses of steel band transport path setting, guide device, levelling machine, moving frame, strapper head and guide groove composition；
It is characterized in that, the control system of this metal strapper includes electric control system and atmospheric control, wherein electrical control
Touch-screen that system is connected respectively by master controller and with master controller, detecting signal unit, speed control unit, pneumatic control
Unit processed and emergency run-down unit composition, speed control unit connects moving frame additionally by frequency converter and variable-frequency motor and controls
End；Atmospheric control includes air compression station, air compressor machine and pneumatic operated valve platform, the control of each pneumatic operated valve in air compressor machine and pneumatic operated valve platform
End processed connects pneumatic control unit respectively, and air compression station passes through pneumatic line and corresponding pneumatic operated valve connects the gas in strapper head
Dynamic motor and two-in-one cylinder, pneumatic line sets main air valve；Strapper head includes air motor, feed roller, two-in-one
Cylinder and snap fastener unit, wherein feed roller is driven by gearbox by air motor, and snap fastener unit is by two-in-one air cylinder driven；
It is provided with multiple limit switches, the output end of limit switch connects detecting signal unit respectively at strapper head.
2. a kind of metal strapper automatic control system according to claim 1 is it is characterised in that described pneumatic horse
Reach and be provided with A, B, H, L4 source of the gas control interface, wherein A, B gas source interface is used for air motor commutation control, H, L
Source of the gas control interface is used for air motor high speed or the control that slowly runs.
3. a kind of metal strapper automatic control system according to claim 1 is it is characterised in that described two-in-one
The overall structure that cylinder is made up of connected big cylinder and little cylinder, the both sides of big cylinder are rod chamber, little cylinder side
For rod chamber, opposite side is rodless cavity；The upside cylinder rod of big cylinder is hinged with one end of connecting rod, the other end of connecting rod and snap fastener
The afterbody of unit is hinged, hinged with one end of fork in the middle part of connecting rod, and the other end of fork is fixing end；Cylinder rod on the downside of big cylinder
It is connected with the cylinder rod of little cylinder；Set below snap fastener unit and send band limit switch, stretch out direction precedence along big cylinder cylinder rod and be provided with limit
Bit switch one, limit switch two and limit switch three, each limit switch connects detecting signal unit respectively.
4. a kind of metal strapper automatic control system according to claim 1 is it is characterised in that described guide groove bottom
Portion sets mobile guide groove and step rate, and mobile guide groove can be tied mobile with step rate and can be integral with guide groove cooperation group C-shaped guide groove
Structure, the open side of C-shaped guide barrel construction is towards snap fastener unit.
5. a kind of metal strapper automatic control system according to claim 1 is it is characterised in that described main control
Device is Siemens's CPU315-2DP type PLC, and touch-screen is Siemens's touch-screen, and frequency converter is MM440 frequency converter, master control
Device processed is passed through Profibus-DP network and is connected with touch-screen communication.
6. the control method based on a kind of metal strapper automatic control system described in claim 1 it is characterised in that
Comprise the steps：
1) technological parameter needed for being set by touch-screen；The steel band tied up is drawn by Tape dispenserses, leads through guide device
Just, reach moving frame after levelling machine smoothing, speed control unit passes through frequency converter and variable-frequency motor controls moving frame to move,
Steel band is delivered at feed roller, with the pinch roller that feed roller is correspondingly arranged, steel band is compressed；The rotation direction of feed roller and speed
Controlled by gearbox by air motor；
2) master controller sends and ties up commencing signal, and step rate drives mobile guide groove mobile composition C-shaped guide groove knot at guide groove
Structure, and the thing that is tied on mobile guide groove is delivered in place in C-shaped guide barrel construction, start to tie up；
3) master controller controls source of the gas control interface A corresponding with H by PLC program and relay logic combination control mode
Magnetic valve start, air motor forward direction high-speed rotation, by feed roller, steel band is passed through and sends into after swage and snap fastener unit
In C-shaped guide barrel construction, steel band moves along C-shaped guide barrel construction, reenters snap fastener unit around after be tied thing one week；Send
Band limit switch detects after steel band takes the lead, and starts timer, master controller passes through Control source of the gas control interface simultaneously
The corresponding magnetic valve of B and L starts, and air motor keeps rotating forward, and the compressed air require entering air motor reduces,
System send carrier state by sending at a high speed carrier state to proceed to low speed；In snap fastener unit, steel band takes the lead to overlap one with steel band below
Rise, the length of lap is controlled by timer, after length of overlapped part reaches preseting length, air motor stops supply,
System stops sending band；
4) the big cylinder both sides rod chamber in two-in-one cylinder all empties, little cylinder rodless cavity air inlet, and little cylinder cylinder rod promotes
Big cylinder piston moves up, and on the upside of big cylinder, cylinder rod drives the pawl of stinging in snap fastener unit to enter promptly position, touches limit simultaneously
Bit switch two, stings pawl by main controller controls and catches the steel band being tied beyond the region of objective existence side, press close to mobile cutting knife；
5) master controller passes through PLC program and relay logic combination controls source of the gas control interface B and the corresponding electricity of H
Magnet valve starts, and steel band is pulled back and taken up by feed roller and pinch roller and is being tied by the reverse high-speed rotation of air motor
High speed take-up is realized in beyond the region of objective existence side；After the high speed take-up time setting, master controller passes through the control of Control source of the gas and connects
The mouth corresponding magnetic valve of A and L starts, and air motor keeps rotating backward, and simultaneously enters the compressed air require of air motor
Reduce, system switchs to low speed by high speed take-up and tightens up；After reaching the tightening force of setting, the air pressure in air motor keeps constant,
Ensure 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 rod
The pawl of stinging controlling snap fastener unit catches steel band and closure securely, stings pawl and pressing mold cooperation completes to detain, mobile cutting knife is released and cut
Disconnected steel band；On the upside of big cylinder, cylinder rod touches mobile cutting knife stopping action after limit switch three, returns in situ；
7) in two-in-one cylinder big cylinder upside rod chamber air inlet, big cylinder piston moves down, and on the upside of big cylinder, cylinder rod is touched
For the moment, air motor stops supply to limit switch；Big cylinder piston and small cylinder piston continue to move down return-to-zero position, snap fastener list
Stinging pawl and sting mould and also return to home position in unit；So far complete one-step bundling process.
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| CN201610375677.2A CN106395021B (en) | 2016-05-31 | 2016-05-31 | A kind of metal strapper automatic control system and control method |
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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 |
| CN109018482A (en) * | 2018-06-12 | 2018-12-18 | 石家庄市梓起机电设备科技有限公司 | Steel band automatic flexible strapping 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 |
| 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 |
| 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 |
| 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 |
| CN112923838A (en) * | 2021-01-22 | 2021-06-08 | 唐山迪安自动化设备有限公司 | Sensor for measuring position of steel belt in acid tank |
| CN114056637A (en) * | 2020-07-31 | 2022-02-18 | 美克司株式会社 | Binding machine |
| WO2022052976A1 (en) * | 2020-09-10 | 2022-03-17 | 宁波欣仪伟业进出口有限公司 | Tying control method, apparatus, and system therefor, tying device, and readable storage medium |
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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 |
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| WO2022052976A1 (en) * | 2020-09-10 | 2022-03-17 | 宁波欣仪伟业进出口有限公司 | Tying control method, apparatus, and system therefor, tying device, and readable storage medium |
| CN112923838A (en) * | 2021-01-22 | 2021-06-08 | 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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