CN108799213A - A kind of security system and method for refractory brick automatic hydraulic press - Google Patents
A kind of security system and method for refractory brick automatic hydraulic press Download PDFInfo
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- CN108799213A CN108799213A CN201810840578.6A CN201810840578A CN108799213A CN 108799213 A CN108799213 A CN 108799213A CN 201810840578 A CN201810840578 A CN 201810840578A CN 108799213 A CN108799213 A CN 108799213A
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- 239000011449 brick Substances 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000001012 protector Effects 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 description 16
- 230000001960 triggered effect Effects 0.000 description 12
- 230000006872 improvement Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Ceramic Engineering (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
The invention discloses a kind of security systems of refractory brick automatic hydraulic press, including Hydraulic system and control system, wherein, the hydraulic system includes power source, control valve group, inserting valve group and the safe valve group with position feedback, is connected between the power source and control valve group by inserting valve group and safe valve group；The control system includes PLC controller, programmable safe relay and safety features group；The PLC controller exports the first safety signal according to the signal of safety features group and controls the working condition of inserting valve group according to the first safety signal, and the programmable safe relay exports the second safety signal according to the signal and safety valve position feed back signal of safety features group and controls the working condition of safe valve group according to the second safety signal.The invention also discloses a kind of safety methods of refractory brick automatic hydraulic press.Using the present invention, it can be achieved that efficiently separating for power source and control valve group, eliminates safe hidden trouble, it is ensured that the safety of brick machine and operating personnel improve the reliability of brick machine.
Description
Technical field
The present invention relates to a kind of technical field of electric control more particularly to a kind of security systems of refractory brick automatic hydraulic press
And a kind of safety method of refractory brick automatic hydraulic press.
Background technology
As shown in Figure 1, the hydraulic system of existing refractory material brick machine includes mainly power source and control valve group.Specifically
Ground, power source include pump P1 ', P2 ', P3 ' and accumulator, and control valve group includes mainly upper moving beam control valve group, lower movable beam control
Valve group, master cylinder control valve group and truck control valve group.Wherein, the oil inlet of inserted valve V1 ' is communicated with pump P3 ' and accumulator,
Oil outlet is communicated with lower movable beam control valve group.The oil inlet of inserted valve V2 ' is communicated with pump P1 ', P2 ', oil outlet and lower movable beam control
Valve group processed communicates.The oil inlet of inserted valve V3 ' is communicated with pump P3 ' and accumulator, and oil outlet is communicated with truck control valve group.Inserting
The oil inlet of valve V6 ' is communicated with pump P3 ' and accumulator, and oil outlet is communicated with upper moving beam control valve group.The oil inlet of inserted valve V7 '
It is communicated with pump P1 ', P2 ', oil outlet is communicated with master cylinder control valve group.
As shown in Fig. 2, the control system of existing refractory material brick machine includes mainly PLC ', for detecting brick machine fortune
Line position is set and the sensor S1 ' of state, the SE1 ' that is protected for brick machine mechanical position limitation, is used for the emergency stop switch of safeguard protection
SB1 ', safety door switch SQ1 ' and safe grating SG1 '.
When brick machine works, PLC ' had both been used for the energization of logic control solenoid valve YV1 ', YV2 ', YV3 ', YV6 ', YV7 '
Or power-off (that is, control inserted valve V1 ', V2 ', V3 ', V6 ', V7 ' and open or close), realize the action in different process stage；
It is used for the safety protection control of brick machine again, when position limitation protection SE1 ', emergency stop switch SB1 ', safety door switch SQ1 ' or safety light
When any one in grid SG1 ' is triggered, PLC ' alert process, brick machine is stopped.
Therefore, the prior art success and extensive use on refractory material brick machine, but this technical solution exists
Following deficiency：One, connection hydraulic system power source and the inserted valve of HYDRAULIC CONTROL SYSTEM valve group do not have position feedback, cannot judge
Whether the inserted valve works normally；Two, without independent between the hydraulic system power source and HYDRAULIC CONTROL SYSTEM valve group of brick machine
Safety valve, what connection hydraulic system power source and the inserted valve of HYDRAULIC CONTROL SYSTEM valve group be both used for that brick machine to run related patrolling
Control is collected, is opened or closed according to technique needs in brick machine operation, which is used for safety protection control again, is pressing brick
The inserted valve is closed when machine is alarmed；Three, the control system PLC of brick machine ' it had not only been used for the logic control of brick machine operation, but also be used for
The safety protection control of brick machine.Therefore, existing technology cannot ensure hydraulic system power source and liquid in case of emergency
The isolation of system control valve group is pressed, there are security risks.
Invention content
Technical problem to be solved by the present invention lies in provide security system and the side of a kind of refractory brick automatic hydraulic press
Method eliminates safe hidden trouble, it can be achieved that efficiently separating for power source and control valve group, it is ensured that the safety of brick machine and operating personnel,
Improve the reliability of brick machine.
In order to solve the above technical problem, the present invention provides a kind of security systems of refractory brick automatic hydraulic press, including
Hydraulic system and control system, wherein the hydraulic system includes power source, control valve group, inserts valve group and with position feedback
Safe valve group, between the power source and control valve group pass through insert valve group and safe valve group connection；The control system packet
Include PLC controller, programmable safe relay and safety features group；The PLC controller is according to safety features group
Signal export the first safety signal and according to the first safety signal control inserting valve group working condition, the programmable safe
Relay is according to the signal and safety valve position feed back signal of safety features group the second safety signal of output and according to second
Safety signal controls the working condition of safe valve group.
As the improvement of said program, the power source includes the first kinetic pump, the second kinetic pump, third kinetic pump and storage
It can device；The control valve group includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve
Group；The inserting valve group includes the first inserted valve, the second inserted valve, the 6th inserted valve and the 7th inserted valve；The safe valve group
Include the third safety valve with position feedback, the 4th safety valve with position feedback and the 5th safety valve with position feedback；Institute
The oil outlet for stating the first inserted valve is communicated with lower movable beam control valve group, oil outlet and the lower movable beam control valve of second inserted valve
Group communicates, and the oil inlet of the third safety valve is communicated with third kinetic pump and accumulator and the oil outlet of the third safety valve
It is communicated with truck control valve group, the oil inlet of the 4th safety valve communicates and described with the first kinetic pump and the second kinetic pump
The oil outlet of four safety valves is communicated with the second inserted valve and the 7th inserted valve, oil inlet and the third power of the 5th safety valve
It pumps and accumulator communicates and the oil outlet of the 5th safety valve is communicated with the first inserted valve and the 6th inserted valve, the described 6th inserts
The oil outlet of dress valve is communicated with upper moving beam control valve group, and the oil outlet of the 7th inserted valve is communicated with master cylinder control valve group.
As the improvement of said program, the safety features group includes that spacing protector, emergency stop switch, safety door are opened
It closes and safe grating, the spacing protector accesses PLC controller, the emergency stop switch, safety door switch and safe grating connect
Enter programmable safe relay.
As the improvement of said program, the PLC controller is exported according to spacing protector signal and emergency stop switch signal
First safety signal, and the working condition for inserting valve group is controlled according to the first safety signal；The programmable safe relay root
According to spacing protector signal, emergency stop switch signal, safety door switch signal, safe grating signal and safety valve position feed back signal
The second safety signal is exported, and controls the working condition of safe valve group according to the second safety signal.
As the improvement of said program, the safety valve position feed back signal is also exported to PLC controller.
As the improvement of said program, between the PLC controller and programmable safe relay by communication line into
Row signal transmission.
Correspondingly, the present invention also provides a kind of security system methods of refractory brick automatic hydraulic press, including：
PLC controller exports the first safety signal according to the signal of safety features group, and according to the first safety signal
The working condition of control inserting valve group；
Programmable safe relay exports second according to the signal and safety valve position feed back signal of safety features group
Safety signal, and the working condition of safe valve group is controlled according to the second safety signal, the inserting valve group and safe valve group are used for
Connect power source and control valve group.
As the improvement of said program, the power source includes the first kinetic pump, the second kinetic pump, third kinetic pump and storage
It can device；The control valve group includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve
Group；The inserting valve group includes the first inserted valve, the second inserted valve, the 6th inserted valve and the 7th inserted valve；The safe valve group
Include the third safety valve with position feedback, the 4th safety valve with position feedback and the 5th safety valve with position feedback；Institute
The oil outlet for stating the first inserted valve is communicated with lower movable beam control valve group, oil outlet and the lower movable beam control valve of second inserted valve
Group communicates, and the oil inlet of the third safety valve is communicated with third kinetic pump and accumulator and the oil outlet of the third safety valve
It is communicated with truck control valve group, the oil inlet of the 4th safety valve communicates and described with the first kinetic pump and the second kinetic pump
The oil outlet of four safety valves is communicated with the second inserted valve and the 7th inserted valve, oil inlet and the third power of the 5th safety valve
It pumps and accumulator communicates and the oil outlet of the 5th safety valve is communicated with the first inserted valve and the 6th inserted valve, the described 6th inserts
The oil outlet of dress valve is communicated with upper moving beam control valve group, and the oil outlet of the 7th inserted valve is communicated with master cylinder control valve group.
As the improvement of said program, the safety features group includes that spacing protector, emergency stop switch, safety door are opened
Pass and safe grating；
The PLC controller exports the first safety signal according to spacing protector signal and emergency stop switch signal, and according to
The working condition of first safety signal control inserting valve group；
The programmable safe relay is according to spacing protector signal, emergency stop switch signal, safety door switch signal, peace
Full raster signal and safety valve position feed back signal export the second safety signal, and control safe valve group according to the second safety signal
Working condition.
As the improvement of said program, the safety valve position feed back signal is also exported to PLC controller.
Implement the present invention, has the advantages that：
The present invention by increasing the safe valve group with position feedback between the power source and control valve group of hydraulic system,
And so that insert valve group works respectively with safety valve group by unique connection type of safe valve group, it both can be real by inserting valve group
Logic control in existing brick machine operational process can be sentenced with meeting actual process requirements by the feedback signal of safe valve group
Whether safe valve group of breaking works normally to realize the safety protection control of brick machine；
Invention increases programmable safe relays so that and PLC controller and programmable safe relay work respectively,
Not only inserting valve group can be controlled by PLC controller to realize the logic control of brick machine operation, but also can be by programmable
Safety relay controls safe valve group to realize the safety protection control of brick machine, can effectively ensure in case of emergency
The power source of hydraulic system is isolated with control valve group, avoids security risk.
Description of the drawings
Fig. 1 is the structural schematic diagram of the hydraulic system of existing refractory material brick machine；
Fig. 2 is the structural schematic diagram of the control system of existing refractory material brick machine；
Fig. 3 is the structural schematic diagram of the security system of refractory brick automatic hydraulic press of the present invention；
Fig. 4 is the structural schematic diagram of hydraulic system in the present invention；
Fig. 5 is the structural schematic diagram of control system in the present invention；
Fig. 6 is the first embodiment flow chart of the safety method of refractory brick automatic hydraulic press of the present invention；
Fig. 7 is the second embodiment flow chart of the safety method of refractory brick automatic hydraulic press of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just
Position word is not the specific restriction to the present invention only on the basis of the attached drawing of the present invention.
As shown in figure 3, the security system 100 of refractory brick automatic hydraulic press of the present invention includes hydraulic system 1 and control system
2, specifically, the hydraulic system 1 includes power source 11, control valve group 12, inserting valve group 13 and the safety valve with position feedback
Group 14 is connected between the power source 11 and control valve group 12 by inserting valve group 13 and safe valve group 14；The control system 2
Including PLC controller 21, programmable safe relay 22 and safety features group 23, wherein safety features group 23 is wrapped
Include at least one safety features, the safety features respectively with PLC controller 21 and/or programmable safe relay
22 are communicated.The PLC controller 21 is preferably Siemens 6ES7 315-7TJ10-0AB0, and the safety relay 22 is excellent
Pilz PNOZ S3 are selected as, system that but not limited to this, user can select according to actual conditions.
The PLC controller 21 exports the first safety signal according to the signal of safety features group 23 and pacifies according to first
The working condition of full signal control inserting valve group 13, the programmable safe relay 22 is according to the letter of safety features group 23
Number and safety valve position feed back signal export the second safety signal and control the work of safe valve group 14 according to the second safety signal
State.When brick machine works, when the safety features communicated with PLC controller 21 are not triggered, PLC controls
Device 21 exports the first safety signal；Meanwhile when the output of the safety features communicated with programmable safe relay 22
When signal is normal and the safety features that are communicated with PLC controller 21 are not triggered, programmable safe relay
22 the second safety signals of output pass through the delay of certain time after programmable safe relay 22 exports the second safety signal
Afterwards, if when there are no by safety valve position feed back signal, programmable safe relay 22 stops the second safety signal of output；Cause
This, when the first safety signal and the second safety signal normally export, brick machine could normal operation.
Compared with prior art, hydraulic system 1 of the invention increases the safe valve group 14 with position feedback.This hair
In bright, PLC controller 21 is used for the logic control of brick machine, i.e., opens or closes state by control inserting valve group 13, from
And realize the action in different process stage.Programmable safe relay 22 is used for the safety protection control of brick machine, i.e., by making
Safe valve group 14 with position feedback maintains a normally open state, to make safe valve group 14 be not involved in the interrelated logic control of brick machine
System.
When brick machine works, when any one in safety features group 23 is triggered, or safety valve is received not yet
When position feed back signal, PLC controller 21 stops the first safety signal of output, keeps power source out of service and closes inserting valve group
13；Meanwhile programmable safe relay 22 stops the second safety signal of output, and closed safe valve group 14, make power source 11 with
Control valve group 12 is isolated, it is ensured that the safety of brick machine and operating personnel improve the reliability of brick machine.
The specific knot of hydraulic system in the security system of refractory brick automatic hydraulic press of the present invention is shown referring to Fig. 4, Fig. 4
Structure, wherein the power source includes the first kinetic pump P1, the second kinetic pump P2, third kinetic pump P3 and accumulator；The control
Valve group 12 includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve group；The inserting
Valve group 13 includes the first inserted valve V1, the second inserted valve V2, the 6th inserted valve V6 and the 7th inserted valve V7；The safe valve group 14
Include third safety valve V3, the 4th safety valve V4 with position feedback and the 5th safety valve with position feedback with position feedback
V5；The oil outlet of the first inserted valve V1 is communicated with lower movable beam control valve group, and the oil outlet of the second inserted valve V2 is under
Dynamic beam control valve group communicates, and the oil inlet of the third safety valve V3 is communicated with third kinetic pump P3 and accumulator and the third
The oil outlet of safety valve V3 is communicated with truck control valve group, the oil inlet and the first kinetic pump P1 of the 4th safety valve V4 and
Two kinetic pump P2 are communicated and the oil outlet of the 4th safety valve V4 is communicated with the second inserted valve V2 and the 7th inserted valve V7, described
The oil inlet of 5th safety valve V5 is communicated with third kinetic pump P3 and accumulator and the oil outlet of the 5th safety valve V5 and
One inserted valve V1 and the 6th inserted valve V6 are communicated, and the oil outlet of the 6th inserted valve V6 is communicated with upper moving beam control valve group, institute
The oil outlet for stating the 7th inserted valve V7 is communicated with master cylinder control valve group.
Compared with prior art, the hydraulic system of this patent increases the 4th safety valve V4 with position feedback and
Five safety valve V5, and original inserted valve V3 ' is changed to the third safety valve V3 with position feedback.Wherein, third safety valve V3,
4th safety valve V4 and the 5th safety valve V5 maintain a normally open state in the automatic motion process of brick machine, are not involved in logic control,
Only when brick machine occurs abnormal, third safety valve V3, the 4th safety valve V4 and the 5th safety valve V5 are closed, make power source 11 with
Control valve group 12 is isolated, it is ensured that the safety of brick machine and operating personnel；Therefore, when brick machine works, programmable safe relay
Device 22 can be led to by controlling the power supply of third solenoid valve YV3, the 4th solenoid valve YV4 and the 5th solenoid valve YV5 and growing, and keep band position anti-
Third safety valve V3, the 4th safety valve V4 and the 5th safety valve V5 of feedback are maintained a normally open, and the correlation for being not involved in brick machine work is patrolled
Collect control.And the first inserted valve V1, the second inserted valve V2, the 6th inserted valve V6 and the 7th inserted valve V7 participate in logic control, i.e.,
By controlling the working condition of the first inserted valve V1, the second inserted valve V2, the 6th inserted valve V6 and the 7th inserted valve V7 to reality
The action in existing different process stage；Therefore, when brick machine works, PLC controller 21 is used for logic control, that is, passes through control the
The energization or power-off of one solenoid valve YV1, second solenoid valve YV2, the 6th solenoid valve YV6 and the 7th solenoid valve YV7, to control the
One inserted valve V1, the second inserted valve V2, the 6th inserted valve V6 and the 7th inserted valve V7 are opened or closed, and realize different process rank
The action of section.
The specific of control system 2 in the security system 100 of refractory brick automatic hydraulic press of the present invention is shown referring to Fig. 5, Fig. 5
Structure, specifically, the safety features group 23 include spacing protector SE1, emergency stop switch, SB1 safety door switchs SQ1 and
Safe grating SG1.Wherein, spacing protector SE1 is protected for brick machine mechanical position limitation, emergency stop switch SB1, safety door switch
SQ1 and safe grating SG1 are used to safeguard protection.The spacing protector SE1 accesses PLC controller 21, the emergency stop switch
SB1, safety door switch SQ1 and safe grating SG1 access programmable safes relay 22.
The PLC controller 21 is believed according to spacing protector SE1 signals and the first safety of emergency stop switch SB1 signals output
Number, and the working condition for inserting valve group 13 is controlled according to the first safety signal；The programmable safe relay 22 is according to limit
Protector SE1 signals, emergency stop switch SB1 signals, safety door switch SQ1 signals, safe grating SG1 signals and safe valve position are anti-
Feedback signal exports the second safety signal, and the working condition of safe valve group 14 is controlled according to the second safety signal.
It should be noted that when spacing protector SE1 and emergency stop switch SB1 is not triggered, PLC controller 21 exports
First safety signal.When safety door switch SQ1 and safe grating SG1 input signals are normal, and at the same time meeting the first peace of output
When condition (i.e. when spacing protector SE1 and emergency stop switch SB1 are not triggered) of full signal, programmable safe relay 22
The second safety signal is exported, after programmable safe relay 22 exports the second safety signal, after the delay of certain time,
If when not yet by safety valve position feed back signal, programmable safe relay 22 stops the second safety signal of output；Therefore,
When the first safety signal and the second safety signal normally export, brick machine could normal operation.
In brick machine work, in spacing protector SE1, emergency stop switch SB1, safety door switch SQ1 or safe grating SG1
Any one when being triggered, or when not receiving safety valve feedback signal, PLC controller 21 will stop output the first safety letter
Number, keep accumulator off-load, the first kinetic pump P1, the second kinetic pump P2 and third kinetic pump P3 out of service；Meanwhile programmable peace
All relay 22 will stop exporting the second safety signal, that is, disconnect third solenoid valve YV3, the 4th solenoid valve YV4 and the 5th electromagnetism
The power supply of valve YV5, third safety valve V3, the 4th safety valve V4 and the 5th safety valve V5 with position feedback will be closed, at this point, peace
Full valve group 14 (third safety valve V3, the 4th safety valve V4 and the 5th safety valve V5) is by the power source 11 and hydraulic pressure of hydraulic system 1
The control valve group 12 of system 1 is isolated, it is ensured that the safety of brick machine and operating personnel improve the reliability of brick machine.
Further, the sensor S1, the sensor S1 that access PLC controller 21 is additionally provided in the present invention are pressed for detecting
Brick machine running position and state.
Correspondingly, the safety valve position feed back signal is also exported to PLC controller 21.Specifically, work as programmable safe
When relay 22 stops the second safety signal of output, safety valve feedback signal is fed back to PLC controller by safe valve group 14 simultaneously
21, do alarm use.
In addition, signal transmission is carried out by communication line between the PLC controller 21 and programmable safe relay 22,
To realize the signal exchange between PLC controller 21 and programmable safe relay 22.
In conclusion the present invention between the power source 11 and control valve group 12 of hydraulic system 1 by increasing band position
The safe valve group 14 of feedback so that inserting valve group 13 works respectively with safe valve group 14, both can realize pressure by inserting valve group 13
Logic control in brick machine operational process can be judged with meeting actual process requirements by the feedback signal of safe valve group 14
Whether safe valve group 14 works normally to realize the safety protection control of brick machine；Meanwhile invention increases programmable safes
Relay 22 so that PLC controller 21 and programmable safe relay 22 work respectively, both can be by PLC controller 21 to inserting
Dress valve group 13 is controlled to realize the logic control of brick machine operation, and can be by programmable safe relay 22 to safety valve
Group 14 is controlled to realize the safety protection control of brick machine, can effectively be ensured the dynamic of hydraulic system 1 in case of emergency
Power source 11 is isolated with control valve group 12, avoids security risk.
The first embodiment flow chart of the safety method of refractory brick automatic hydraulic press of the present invention is shown referring to Fig. 6, Fig. 6,
Including：
S101, PLC controller export the first safety signal according to the signal of safety features group, and according to the first safety
The working condition of signal control inserting valve group；
S102, programmable safe relay are exported according to the signal and safety valve position feed back signal of safety features group
Second safety signal, and control according to the second safety signal the working condition of safe valve group.
It should be noted that the present invention includes Hydraulic system and control system, the hydraulic system includes power source, control
Valve group, inserting valve group and the safe valve group with position feedback, by inserting valve group and peace between the power source and control valve group
Full valve group connects；The control system includes PLC controller, programmable safe relay and safety features group, wherein peace
Full guard equipment group includes at least one safety features, the safety features respectively with PLC controller and/or can compile
Journey safety relay is communicated.
When brick machine works, when not being triggered with the safety features that PLC controller is communicated, PLC controls
Device processed exports the first safety signal；Meanwhile when the output of the safety features communicated with programmable safe relay is believed
When number safety features that are normal and being communicated with PLC controller are not triggered, the output of programmable safe relay
Second safety signal, after programmable safe relay exports the second safety signal, after the delay of certain time, if not having also
When having by safety valve position feed back signal, programmable safe relay stops the second safety signal of output；Therefore, when the first peace
Full signal and the second safety signal normally export, and brick machine could normal operation.
Compared with prior art, hydraulic system of the invention increases the safe valve group with position feedback.The present invention
In, PLC controller is used for the logic control of brick machine, i.e., state is opened or closed by control inserting valve group, to realize
The action in different process stage.Programmable safe relay is used for the safety protection control of brick machine, i.e., by keeping band position anti-
The safe valve group of feedback maintains a normally open state, to make safe valve group be not involved in the interrelated logic control of brick machine.
When brick machine works, when any one in safety features group is triggered, or safety valve position is received not yet
When setting feedback signal, PLC controller stops the first safety signal of output, and inserts the working condition of valve group so that dynamic by control
Power source is out of service；Meanwhile programmable safe relay stops the second safety signal of output, and closed safe valve group, makes power
Source is isolated with control valve group, it is ensured that the safety of brick machine and operating personnel improve the reliability of brick machine.
Correspondingly, the safety valve position feed back signal is also exported to PLC controller.Specifically, when programmable safe after
When electric appliance stops the second safety signal of output, safety valve feedback signal is fed back to PLC controller by safe valve group simultaneously, is alarmed
Prompt uses.
In addition, signal transmission is carried out by communication line between the PLC controller and programmable safe relay, to
Realize the signal exchange between PLC controller and programmable safe relay.
Further, heretofore described power source includes the first kinetic pump, the second kinetic pump, third kinetic pump and accumulation of energy
Device；The control valve group includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve
Group；The inserting valve group includes the first inserted valve, the second inserted valve, the 6th inserted valve and the 7th inserted valve；The safe valve group
Include the third safety valve with position feedback, the 4th safety valve with position feedback and the 5th safety valve with position feedback；Institute
The oil outlet for stating the first inserted valve is communicated with lower movable beam control valve group, oil outlet and the lower movable beam control valve of second inserted valve
Group communicates, and the oil inlet of the third safety valve is communicated with third kinetic pump and accumulator and the oil outlet of the third safety valve
It is communicated with truck control valve group, the oil inlet of the 4th safety valve communicates and described with the first kinetic pump and the second kinetic pump
The oil outlet of four safety valves is communicated with the second inserted valve and the 7th inserted valve, oil inlet and the third power of the 5th safety valve
It pumps and accumulator communicates and the oil outlet of the 5th safety valve is communicated with the first inserted valve and the 6th inserted valve, the described 6th inserts
The oil outlet of dress valve is communicated with upper moving beam control valve group, and the oil outlet of the 7th inserted valve is communicated with master cylinder control valve group.
Compared with prior art, the hydraulic system of this patent increases the 4th safety valve and the 5th with position feedback
Safety valve, and original inserted valve V3 ' is changed to the third safety valve with position feedback.Wherein, third safety valve, the 4th safety
Valve and the 5th safety valve maintain a normally open state in the automatic motion process of brick machine, are not involved in logic control, only when brick machine goes out
When now abnormal, third safety valve, the 4th safety valve and the 5th safety valve are closed, and power source is made to be isolated with control valve group, it is ensured that pressure
The safety of brick machine and operating personnel；Therefore, when brick machine works, programmable safe relay can be by controlling third solenoid valve
The power supply length of YV3, the 4th solenoid valve YV4 and the 5th solenoid valve YV5 are logical, make the third safety valve V3 with position feedback, the 4th peace
Full valve V4 and the 5th safety valve V5 are maintained a normally open, and are not involved in the interrelated logic control of brick machine work.And the first inserted valve, second
Inserted valve, the 6th inserted valve and the 7th inserted valve participate in logic control, i.e., by controlling the first inserted valve, the second inserted valve, the
The working condition of six inserted valves and the 7th inserted valve is to realize the action in different process stage；Therefore, when brick machine works,
PLC controller is used for logic control, i.e., by controlling the first solenoid valve YV1, second solenoid valve YV2, the 6th solenoid valve YV6 and the
The energization or power-off of seven solenoid valve YV7, to the first inserted valve V1 of control, the second inserted valve V2, the 6th inserted valve V6 and the 7th
Inserted valve V7's opens or closes, and realizes the action in different process stage.
The second embodiment flow chart of the safety method of refractory brick automatic hydraulic press of the present invention is shown referring to Fig. 7, Fig. 7,
Including：
S201, PLC controller export the first safety signal according to spacing protector signal and emergency stop switch signal, and according to
The working condition of first safety signal control inserting valve group；
S202, programmable safe relay according to spacing protector signal, emergency stop switch signal, safety door switch signal,
Safe grating signal and safety valve position feed back signal export the second safety signal, and control safety valve according to the second safety signal
The working condition of group.
It is opened it should be noted that the safety features group in the present invention includes spacing protector, emergency stop switch, safety door
Pass and safe grating.Wherein, spacing protector is protected for brick machine mechanical position limitation, emergency stop switch, safety door switch and safety
Grating is used to safeguard protection.The spacing protector accesses PLC controller, the emergency stop switch, safety door switch and safety
Grating accesses programmable safe relay.
When spacing protector is not triggered with emergency stop switch, PLC controller exports the first safety signal.Work as safety door
Switch is normal with safe grating input signal, and at the same time the condition for meeting the first safety signal of output (works as spacing protector
It is not triggered with emergency stop switch) when, programmable safe relay exports the second safety signal, in programmable safe relay
After exporting the second safety signal, after the delay of certain time, if when there are no by safety valve position feed back signal, it can compile
Journey safety relay stops the second safety signal of output；Therefore, when the first safety signal and the second safety signal normally export,
Brick machine could normal operation.
In brick machine work, such as any one quilt in spacing protector, emergency stop switch, safety door switch or safe grating
When triggering, or when not receiving safety valve feedback signal, PLC controller will stop exporting the first safety signal, and accumulator is made to unload
Lotus, the first kinetic pump P1, the second kinetic pump P2 and third kinetic pump P3 are out of service；Meanwhile programmable safe relay will stop
The second safety signal is only exported, that is, disconnects the power supply of third solenoid valve YV3, the 4th solenoid valve YV4 and the 5th solenoid valve YV5, band
The third safety valve of position feedback, the 4th safety valve and the 5th safety valve will close, (third safety valve, the at this point, safe valve group
Four safety valves and the 5th safety valve) power source of hydraulic system is isolated with the control valve group of hydraulic system, it is ensured that brick machine and
The safety of operating personnel improves the reliability of brick machine.
Further, the sensor S1 of access PLC controller is additionally provided in the present invention, the sensor is for detecting brick machine
Running position and state.
From the foregoing, it will be observed that the invention has the advantages that：
The present invention by increasing the safe valve group with position feedback between the power source and control valve group of hydraulic system,
So that inserting valve group works respectively with safety valve group, it both can be by inserting the logic control in valve group realization brick machine operational process
To meet actual process requirements, and it can judge whether safe valve group works normally to realize by the feedback signal of safe valve group
The safety protection control of brick machine；
Invention increases programmable safe relays so that and PLC controller and programmable safe relay work respectively,
Not only inserting valve group can be controlled by PLC controller to realize the logic control of brick machine operation, but also can be by programmable
Safety relay controls safe valve group to realize the safety protection control of brick machine, can effectively ensure in case of emergency
The power source of hydraulic system is isolated with control valve group, avoids security risk.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of security system of refractory brick automatic hydraulic press, including Hydraulic system and control system, which is characterized in that
The hydraulic system includes power source, control valve group, inserting valve group and the safe valve group with position feedback, the power source
It is connect between control valve group by inserting valve group and safe valve group；
The control system includes PLC controller, programmable safe relay and safety features group；
The PLC controller is according to the signal of safety features group the first safety signal of output and according to the first safety signal control
The working condition of system inserting valve group, signal and safe valve position of the programmable safe relay according to safety features group
Feedback signal exports the second safety signal and controls the working condition of safe valve group according to the second safety signal.
2. the security system of refractory brick automatic hydraulic press as described in claim 1, which is characterized in that
The power source includes the first kinetic pump, the second kinetic pump, third kinetic pump and accumulator；
The control valve group includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve
Group；
The inserting valve group includes the first inserted valve, the second inserted valve, the 6th inserted valve and the 7th inserted valve；
The safe valve group includes the third safety valve with position feedback, the 4th safety valve with position feedback and with position feedback
The 5th safety valve；
The oil outlet of first inserted valve is communicated with lower movable beam control valve group, the oil outlet and lower movable beam of second inserted valve
Control valve group communicates, and the oil inlet of the third safety valve is communicated with third kinetic pump and accumulator and the third safety valve
Oil outlet is communicated with truck control valve group, the oil inlet of the 4th safety valve communicated with the first kinetic pump and the second kinetic pump and
The oil outlet of 4th safety valve is communicated with the second inserted valve and the 7th inserted valve, the oil inlet of the 5th safety valve and
Three kinetic pumps and accumulator communicate and the oil outlet of the 5th safety valve is communicated with the first inserted valve and the 6th inserted valve, described
The oil outlet of 6th inserted valve is communicated with upper moving beam control valve group, oil outlet and the master cylinder control valve group of the 7th inserted valve
It communicates.
3. the security system of refractory brick automatic hydraulic press as described in claim 1, which is characterized in that the safety features
Group includes spacing protector, emergency stop switch, safety door switch and safe grating, and the spacing protector accesses PLC controller, institute
State emergency stop switch, safety door switch and safe grating access programmable safe relay.
4. the security system of refractory brick automatic hydraulic press as claimed in claim 3, which is characterized in that
The PLC controller exports the first safety signal according to spacing protector signal and emergency stop switch signal, and according to first
The working condition of safety signal control inserting valve group；
The programmable safe relay is according to spacing protector signal, emergency stop switch signal, safety door switch signal, safety light
Gate signal and safety valve position feed back signal export the second safety signal, and the work of safe valve group is controlled according to the second safety signal
Make state.
5. the security system of refractory brick automatic hydraulic press as described in claim 1, which is characterized in that the safe valve position is anti-
Feedback signal is also exported to PLC controller.
6. the security system of refractory brick automatic hydraulic press as described in claim 1, which is characterized in that the PLC controller with
Signal transmission is carried out by communication line between programmable safe relay.
7. a kind of safety method of refractory brick automatic hydraulic press, which is characterized in that including：
PLC controller exports the first safety signal according to the signal of safety features group, and is controlled according to the first safety signal
Insert the working condition of valve group；
Programmable safe relay is according to the second safety of the signal and safety valve position feed back signal of safety features group output
Signal, and the working condition of safe valve group, the inserting valve group and safe valve group are controlled according to the second safety signal for connecting
Power source and control valve group.
8. the safety method of refractory brick automatic hydraulic press as claimed in claim 7, which is characterized in that the power source includes the
One kinetic pump, the second kinetic pump, third kinetic pump and accumulator；
The control valve group includes upper moving beam control valve group, lower movable beam control valve group, master cylinder control valve group and truck control valve
Group；
The inserting valve group includes the first inserted valve, the second inserted valve, the 6th inserted valve and the 7th inserted valve；
The safe valve group includes the third safety valve with position feedback, the 4th safety valve with position feedback and with position feedback
The 5th safety valve；
The oil outlet of first inserted valve is communicated with lower movable beam control valve group, the oil outlet and lower movable beam of second inserted valve
Control valve group communicates, and the oil inlet of the third safety valve is communicated with third kinetic pump and accumulator and the third safety valve
Oil outlet is communicated with truck control valve group, the oil inlet of the 4th safety valve communicated with the first kinetic pump and the second kinetic pump and
The oil outlet of 4th safety valve is communicated with the second inserted valve and the 7th inserted valve, the oil inlet of the 5th safety valve and
Three kinetic pumps and accumulator communicate and the oil outlet of the 5th safety valve is communicated with the first inserted valve and the 6th inserted valve, described
The oil outlet of 6th inserted valve is communicated with upper moving beam control valve group, oil outlet and the master cylinder control valve group of the 7th inserted valve
It communicates.
9. the safety method of refractory brick automatic hydraulic press as claimed in claim 7, which is characterized in that the safety features
Group includes spacing protector, emergency stop switch, safety door switch and safe grating；
The PLC controller exports the first safety signal according to spacing protector signal and emergency stop switch signal, and according to first
The working condition of safety signal control inserting valve group；
The programmable safe relay is according to spacing protector signal, emergency stop switch signal, safety door switch signal, safety light
Gate signal and safety valve position feed back signal export the second safety signal, and the work of safe valve group is controlled according to the second safety signal
Make state.
10. the safety method of refractory brick automatic hydraulic press as described in claim 1, which is characterized in that the safe valve position
Feedback signal is also exported to PLC controller.
Priority Applications (1)
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|---|---|---|---|
| CN201810840578.6A CN108799213B (en) | 2018-07-27 | 2018-07-27 | Safety system and method of automatic hydraulic press for refractory bricks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810840578.6A CN108799213B (en) | 2018-07-27 | 2018-07-27 | Safety system and method of automatic hydraulic press for refractory bricks |
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| CN108799213B CN108799213B (en) | 2023-11-28 |
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| Publication number | Publication date |
|---|---|
| CN108799213B (en) | 2023-11-28 |
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Address after: 528137 No. 25 (C), science and Technology Industrial Zone, Sanshui center, Foshan, Guangdong, China (F4) Applicant after: FOSHAN HENGLITAI MACHINERY Co.,Ltd. Address before: 528137 District C, Sanshui Science and Technology Industrial Zone, Foshan City, Guangdong Province (FA) Applicant before: FOSHAN HENGLITAI MACHINERY Co.,Ltd. |
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