CN103696999B - A kind of stretcher control system - Google Patents
A kind of stretcher control system Download PDFInfo
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- CN103696999B CN103696999B CN201310711065.2A CN201310711065A CN103696999B CN 103696999 B CN103696999 B CN 103696999B CN 201310711065 A CN201310711065 A CN 201310711065A CN 103696999 B CN103696999 B CN 103696999B
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- variable pump
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- 239000003999 initiator Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
This application discloses a kind of stretcher control system, including: power plant module, for providing the pulling motion of described stretching-machine, described power plant module is specially variable pump；Control module, is used for controlling described variable pump and works with different flow, and described variable pump is when different flow works, and described stretching-machine is with corresponding tensile force work.By control module control variable pump, the output flow making variable pump can change, so that the draw speed of stretching-machine can change accordingly, rather than only apply a fixing speed, make stretching-machine can realize different draw speeds with the difference of strain stretch material, disclosure satisfy that the various drawing process needs of reality, stretching quality is the highest.
Description
Technical field
The application relates to stretching-machine control field, particularly relates to a kind of stretcher control system.
Background technology
At metal-processing industry, the degree expanded with heat and contract with cold due to the metallic article after quenching is different, molding originally
Metallic article can deform upon, now need to utilize stretching-machine (being also seven-roll Abramsen machine) by bending
Metallic article stretches.
Stretching-machine of the prior art by use dosing pump as power source, owing to the output of dosing pump is
Can not regulate is quantitative so that the speed of stretching-machine stretching can only be a fixing speed, for difference
Specification, the metallic article of different materials, fixing draw speed can not meet the drawing process needs of reality,
Drawing effect can not be met be actually needed.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of stretcher control system, by variable pump and control
It is adjustable that module realizes stretching-machine speed, can meet different stretch technique needs.
To achieve these goals, the technical scheme that the application provides is as follows:
A kind of stretcher control system, including:
Power plant module, for providing the pulling motion of described stretching-machine, described power plant module is specially variable
Pump；
Control module, is used for controlling described variable pump and works with different flow, and described variable pump is in various flows
During amount work, described stretching-machine is with corresponding tensile force work.
Preferably, described control module includes:
Order receives unit, for receiving the variable pump operational order of input；
Analog quantity converting unit, for being converted to analogue signal by described operational order；
Proportional amplifier, for amplifying described analogue signal；
Smooth potentiometer, the analogue signal after amplifying according to described proportional amplifier linearly regulates described
Variable pump servo voltage, described variable pump servo voltage is for controlling the stream of the output correspondence of described variable pump
Amount.
Preferably, described stretching-machine includes that main plunger, described system also include:
Velocity measuring module, for detecting the speed that stretching-machine main plunger moves.
Preferably, described velocity measuring module is specially incremental optical-electricity encoder.
Preferably, described stretching-machine includes master cylinder, and described master cylinder is for the output stream according to described variable pump
Amount motion, described system also includes:
Pressure detecting module, for detecting the pressure in described stretching-machine master cylinder.
Preferably, described control module also includes:
Speed calculation unit, based on the main plunger translational speed detected according to described velocity measuring module
Calculate the draw speed of described stretching-machine；
Tensile elongation computing unit, for calculating tensile elongation according to described draw speed.
Preferably, described control module also includes:
Pulling force computing unit, the master cylinder pressure for detecting according to described pressure detecting module calculates described
The tensile force of stretching-machine.
Preferably, described system also includes:
Draw speed length display unit, is used for showing described draw speed numerical value and tensile elongation numerical value.
Preferably, described system also includes:
Tensile force display module, is used for showing described tensile force numerical value.
Preferably, described system also includes that at least one electromagnetic valve, described electromagnetic valve draw described in being used for controlling
Stretch machine advance or retreat.
Preferably, described system also includes that electromagnetism relays, described electromagnetism relaying respectively with described electromagnetic valve,
Control module is connected, for reducing the load of described control module output point.
Preferably, described system also includes that variable pump motor, described variable pump motor are used for starting described change
Amount pump；
Described system also includes soft initiator, described soft initiator respectively with described variable pump motor, control
Module is connected, for reducing the starting current of described variable pump motor.
The stretcher control system that the embodiment of the present application provides, by control module control variable pump so that
The output flow of variable pump can change, so that the draw speed of stretching-machine can be sent out accordingly
Changing rather than only one fixing speed of application so that stretching-machine can with strain stretch material not
Realize different draw speeds together, it is possible to meeting actual various drawing process needs, stretching quality is also
Higher.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only some embodiments described in the application, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The schematic diagram of a kind of stretcher control system that Fig. 1 provides for the embodiment of the present application；
The schematic diagram of the control module that Fig. 2 provides for the embodiment of the present application；
The schematic diagram of the another kind of stretcher control system that Fig. 3 provides for the embodiment of the present application.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the application, below in conjunction with
Accompanying drawing in the embodiment of the present application, clearly and completely retouches the technical scheme in the embodiment of the present application
State, it is clear that described embodiment is only some embodiments of the present application rather than whole enforcement
Example.Based on the embodiment in the application, those of ordinary skill in the art are not before making creative work
Put the every other embodiment obtained, all should belong to the scope of the application protection.
The embodiment of the present application provides a kind of stretcher control system, as it is shown in figure 1, include:
Power plant module 100, for providing the pulling motion of described stretching-machine, described power plant module is specially and becomes
Amount pump；
Described variable pump, as the power source of stretching-machine, for the power that the work offer of stretching-machine is required, becomes
Amount pump is different from dosing pump, and dosing pump can only be with fixing flow output so that stretching-machine is only in solid
Fixed speed motion, and variable pump can export different size of flow so that stretching-machine can be carried out not
With the motion of speed, when variable pump output flow is bigger, the draw speed of stretching-machine the most faster, is becoming
When amount POF is less, stretching-machine is just with less speed motion, it is achieved that stretching-machine is with the most synchronized
Degree work.
Control module 200, is used for controlling described variable pump and works with different flow, and described variable pump is in difference
During flow work, described stretching-machine is with corresponding tensile force work.
Described control module is for the flow of control variable pump, as in figure 2 it is shown, specifically include:
Order receives unit 201, for receiving the variable pump operational order of input；
Order receives unit and is used for receiving the variable pump operational order of input, and operational order usually adjustment is drawn
Stretching the operating rate of machine, corresponding actual of different operating rates is exactly different variable pump output flows,
It can be the guidance panel with button that concrete order receives unit, by the speed button that pressing is corresponding,
Input corresponding operational order.
Analog quantity converting unit 202, for being converted to analogue signal by described operational order；
Owing to operational order is usually digital quantity, and actually used in, need operational order is converted to mould
Intend signal.
Proportional amplifier 203, for amplifying described analogue signal；
Owing to the analogue signal after conversion is less, in addition it is also necessary to analogue signal is amplified.
Smooth potentiometer 204, the analogue signal after amplifying according to described proportional amplifier linearly regulates institute
Stating variable pump servo voltage, described variable pump servo voltage is for controlling the output correspondence of described variable pump
Flow.
The final control object of analogue signal is variable pump, and in the embodiment of the present application, described control module is also
Including smooth potentiometer, when variable pump works with some flow, the servo voltage of variable pump is also one
Fixed, if now needing to change the draw speed of stretching-machine, it is necessary to the output flow of variable pump occurs
Respective change, and if variable pump jumps directly to the flow after changing, by direct for current servo voltage
Being adjusted to the servo voltage after change, such adjustment mode is relatively big to the impact of variable pump, and the application is real
Execute example and realized the smooth adjustment of variable pump by smooth potentiometer, after i.e. receiving new operational order, flat
Sliding potentiometer, can be by the way of slowly slip so that servo electricity when being adjusted to new servo voltage
Flatten to slide and be adjusted to new servo voltage slowly, and then make the output flow of variable pump with smooth side
Formula is adjusted to new output flow, and the impact to variable pump is the least, and the tension variations making stretching-machine is the most flat
Sliding, the metallic article impact to being stretched is the least, and stretching quality is the highest.
Control module in the embodiment of the present application can be PLC control module, such as Siemens S7-200PLC
Deng, concrete model the application does not limit.
The stretcher control system that the embodiment of the present application provides, by control module control variable pump so that
The output flow of variable pump can change, so that the draw speed of stretching-machine can be sent out accordingly
Changing rather than only one fixing speed of application so that stretching-machine can with strain stretch material not
Realize different draw speeds together, it is possible to meeting actual various drawing process needs, stretching quality is also
Higher.
Described stretching-machine includes main plunger, as it is shown on figure 3, described system also includes:
Velocity measuring module 300, for detecting the speed that stretching-machine main plunger moves.
Control system in the embodiment of the present application also includes velocity measuring module, and this velocity measuring module is concrete
Can be incremental optical-electricity encoder, for detecting the translational speed of stretching-machine main plunger, concrete process
It is that photoelectric encoder is driven synchronous axial system by a tape measure being fixed on stretching-machine main plunger front end, selection
Photoelectric encoder circles and can produce 1024 pulses, and the determining of the main plunger coaxial with photoelectric encoder
The distance that ratch dish circles is 1024mm, namely the corresponding pulse of 1mm, and such main plunger is transported
Dynamic 1mm will produce a pulse.
Control module can also include speed calculation unit 205, for detecting according to described velocity measuring module
The main plunger translational speed arrived calculates the draw speed of described stretching-machine.
Speed calculation unit is by calculating the number of pulses that photoelectric encoder device per second produces, thus passes through meter
Calculate and understand the draw speed that stretching-machine is per second.
Tensile elongation computing unit 206, by calculated pulling speed, can be long by calculating stretching according to S=Vt
Degree, S tensile elongation, V draw speed, t stretching time.
The most described stretching-machine includes master cylinder, and described master cylinder is for according to described variable pump
Output flow motion, described system also includes:
Pressure detecting module 400, for detecting the pressure in described stretching-machine master cylinder.
Described control module also includes:
Pulling force computing unit 207, calculates institute for the master cylinder pressure detected according to described pressure detecting module
State the tensile force of stretching-machine.
The detection range of pressure detecting module can be 0～40MPa, its signal of telecommunication output 4～20mA,
The signal detected delivers to pulling force computing unit, then is carried out pulling force conversion Calculation by pulling force computing unit, pressure
Power detection module can use pressure transducer.
Described control module also includes:
Draw speed length display unit 208, is used for showing described draw speed numerical value and tensile elongation number
Value.
Tensile force display unit 209, is used for showing described tensile force numerical value.
After being calculated draw speed, tensile elongation and tensile force by above-mentioned computing unit, it is also possible to
These data are shown, facilitates user to understand the duty of stretching-machine.
Described system also includes at least one electromagnetic valve 500, before described electromagnetic valve is used for controlling described stretching-machine
Enter or retreat.
Described system also include electromagnetism relaying 600, described electromagnetism relaying respectively with described electromagnetic valve, control mould
Block is connected, for reducing the load of described control module output point.
Described electromagnetism relaying can use 24V electromagnetism relay, play by described control module and electromagnetic valve every
From effect, effectively reduce the load of control module output point, thus increase the service life.Electromagnetic valve
The performer of stretching-machine action, different electromagnetic valves obtain electric can be with restrained stretching machine forward-reverse.
Described system also includes that variable pump motor 700, described variable pump motor are used for starting described variable pump；
Described system also includes soft initiator 800, described soft initiator respectively with described variable pump motor, control
Molding block is connected, for reducing the starting current of described variable pump motor.
The effect of soft initiator is to reduce starting current, it is ensured that motor normally starts.The work of this soft starter
It is in motor starting process as principle, is controlled the size of the angle of flow of IGCT by control circuit,
The starting current making motor is changed according to the rule set by the requirement of operating current, so that motor
The size of starting current, starting voltage, start mode and starting time can be according to practical situation
Adjust, make motor be in optimum start state, reduce the loss of starting power simultaneously
It should be noted that in this article, term " include ", " comprising " or its any other variant
Be intended to comprising of nonexcludability so that include the process of a series of key element, method, article or
Person's equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also
Including the key element intrinsic for this process, method, article or equipment.In the feelings not having more restriction
Under condition, statement " including ... " key element limited, it is not excluded that in the mistake including described key element
Journey, method, article or equipment there is also other identical element.
It should be noted that the part that the above is only technical scheme is preferably embodied as
Mode, enables those skilled in the art to fully understand or realizes the application rather than whole embodiments,
Generic principles defined herein can be in the case of without departing from spirit herein or scope, at it
Its embodiment realizes.Therefore, based on above example, for those skilled in the art
For, without departing from the application principle, do not make under creative work premise, it is also possible to make multiple aobvious
And the amendment being clear to and retouching, the every other embodiment obtained by these amendments and retouching, all may be used
To be applied to technical scheme, these do not affect the realization of the application, all should belong to the application
Protection domain.Therefore, the application is not intended to be limited to the embodiments shown herein, and is intended to
Accord with principles disclosed herein and the consistent the widest scope of features of novelty.
Above the application is described in detail, used herein can the specific case principle to the application
And embodiment is set forth, the explanation of above example is only intended to help and understands the present processes
And core concept, simultaneously for one of ordinary skill in the art, according to the thought of the application,
All will change in detailed description of the invention and range of application, in sum, this specification content should not
It is interpreted as the restriction to the application.
Claims (11)
1. a stretcher control system, it is characterised in that including:
Power plant module, for providing the pulling motion of described stretching-machine, described power plant module is specially variable
Pump；
Control module, is used for controlling described variable pump and works with different flow, and described variable pump is in various flows
During amount work, described stretching-machine is with corresponding tensile force work；
Velocity measuring module, for detecting the speed that the main plunger of described stretching-machine moves；
Wherein, described stretching-machine includes main plunger.
System the most according to claim 1, it is characterised in that described control module includes:
Order receives unit, for receiving the variable pump operational order of input；
Analog quantity converting unit, for being converted to analogue signal by described operational order；
Proportional amplifier, for amplifying described analogue signal；
Smooth potentiometer, the analogue signal after amplifying according to described proportional amplifier linearly regulates described
Variable pump servo voltage, described variable pump servo voltage is for controlling the stream of the output correspondence of described variable pump
Amount.
System the most according to claim 1, it is characterised in that described velocity measuring module is specially
Incremental optical-electricity encoder.
System the most according to claim 1, it is characterised in that described stretching-machine includes master cylinder, institute
Stating master cylinder to move for the output flow according to described variable pump, described system also includes:
Pressure detecting module, for detecting the pressure in described stretching-machine master cylinder.
System the most according to claim 1, it is characterised in that described control module also includes:
Speed calculation unit, based on the main plunger translational speed detected according to described velocity measuring module
Calculate the draw speed of described stretching-machine；
Tensile elongation computing unit, for calculating tensile elongation according to described draw speed.
System the most according to claim 4, it is characterised in that described control module also includes:
Pulling force computing unit, the master cylinder pressure for detecting according to described pressure detecting module calculates described
The tensile force of stretching-machine.
System the most according to claim 5, it is characterised in that described system also includes:
Draw speed length display unit, is used for showing described draw speed numerical value and tensile elongation numerical value.
System the most according to claim 6, it is characterised in that described system also includes:
Tensile force display unit, is used for showing described tensile force numerical value.
System the most according to claim 1, it is characterised in that described system also includes at least one
Electromagnetic valve, described electromagnetic valve is used for controlling described stretching-machine and advances or retreat.
System the most according to claim 9, it is characterised in that described system also includes in electromagnetism
Continuing, described electromagnetism relaying is connected with described electromagnetic valve, control module respectively, is used for reducing described control
The load of module output point.
11. systems according to claim 1, it is characterised in that described system also includes variable pump
Motor, described variable pump motor is used for starting described variable pump；
Described system also includes soft initiator, described soft initiator respectively with described variable pump motor, control
Module is connected, for reducing the starting current of described variable pump motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310711065.2A CN103696999B (en) | 2013-12-20 | 2013-12-20 | A kind of stretcher control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310711065.2A CN103696999B (en) | 2013-12-20 | 2013-12-20 | A kind of stretcher control system |
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| Publication Number | Publication Date |
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| CN103696999A CN103696999A (en) | 2014-04-02 |
| CN103696999B true CN103696999B (en) | 2017-01-04 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1085654A1 (en) * | 1982-05-17 | 1984-04-15 | Государственный Проектный Институт "Электротяжхимпроект" | System of controlling flattening and stretching machine |
| CN2073779U (en) * | 1990-09-07 | 1991-03-27 | 临海市东方发动机部件厂 | Tensile hydraulic press |
| CN2637024Y (en) * | 2003-08-26 | 2004-09-01 | 苏州市越海拉伸机械有限公司 | Digital controlled hydraulic double acting stretching machine |
| US7953537B2 (en) * | 2008-02-29 | 2011-05-31 | Hill-Rom Services, Inc. | Algorithm for power drive speed control |
| CN201632530U (en) * | 2009-07-07 | 2010-11-17 | 袁吉辉 | Novel double-motion stretching hydraulic machine |
| CN203019708U (en) * | 2012-11-30 | 2013-06-26 | 江苏沃得机电集团有限公司 | Hydraulic control system |
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2013
- 2013-12-20 CN CN201310711065.2A patent/CN103696999B/en active Active
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