CN104044250A - Injection moulding machine control device with force transmitting part and temperature management function - Google Patents
Injection moulding machine control device with force transmitting part and temperature management function Download PDFInfo
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- CN104044250A CN104044250A CN201410087767.2A CN201410087767A CN104044250A CN 104044250 A CN104044250 A CN 104044250A CN 201410087767 A CN201410087767 A CN 201410087767A CN 104044250 A CN104044250 A CN 104044250A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76013—Force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76026—Energy, power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/76224—Closure or clamping unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76702—Closure or clamping device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76929—Controlling method
- B29C2945/76939—Using stored or historical data sets
- B29C2945/76943—Using stored or historical data sets compare with thresholds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/7653—Measuring, controlling or regulating mould clamping forces
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an injection moulding machine control device with a temperature management function and a force transmitting part, which can transmit the driving force from the driving part to the movable part. The control device is used to detect physical parameters related with the calorific value of the force transmitting part, is capable of determining the temperature of the force transmitting part according to the detected physical parameters, and automatically controls the temperature of the force transmitting part within a preset temperature range.
Description
Technical field
The present invention relates to a kind of control device of injection moulding machine of temperature treatment function of the power of having transfer part.Background technology
In injection moulding machine, possess the injector axle of the injection shaft that axially drives helical element, the switching mold shaft that drives swage block, driving injector etc., possess the force transfer mechanisms such as being transformed to straight-line ball-screw that will rotatablely move in the situation that driving each axle with servomotor.In addition, in the driving of die opening and closing, sometimes also use the force transfer mechanisms such as toggle mechanism, crank mechanism.Such force transfer mechanism produces according to operation condition the temperature causing because of heating and rises, and therefore must manage and make the temperature of force transfer mechanism be no more than allowable temperature.
Method as the temperature of such management force transfer mechanism, technology below disclosing in Japanese kokai publication hei 8-135751 communique, at the nut of ball-screw and the contact site of ball screw axle, the unit that sprays refrigerant is set, the rotation amount according to ball-screw in time per unit is controlled the quantity delivered of refrigerant.In addition, in Japanese kokai publication hei 11-198207 communique, the temperature that detects a side of ballscrew shaft and ball-screw nut by temperature sensor is disclosed, when surpassing setting value by the detected temperature of this temperature sensor, on display part, show warning literary composition, send and impel operator for the warning of fat.
In the disclosed technology of above-mentioned Japanese kokai publication hei 8-135751 communique, rotation amount according to ball-screw in time per unit is controlled refrigerant feed unit, but in fact, not only according to ball-screw, the rotation amount in time per unit changes the caloric value of ball-screw, also according to transmission power of ball-screw etc., change, therefore in the situation that as injection moulding machine etc. the large thrust of ball-screw transmission, the temperature that likely cannot manage accurately ball-screw.
In addition, the disclosed Technology Need of above-mentioned Japanese kokai publication hei 11-198207 communique is prepared temperature sensor for ballscrew shaft or ball-screw nut, the problem that exists cost to rise.
Summary of the invention
Therefore, in view of the problem points of above-mentioned prior art and propose the present invention, its object is: the control device that a kind of injection moulding machine is provided, it has the temperature treatment function of power transfer part, do not need the special unit such as temperature sensor, just can infer the temperature of the power transfer part such as ball-screw, and manage and make above-mentioned temperature of inferring be no more than allowable temperature.
The control device of injection moulding machine of the present invention possesses: drive division, and it drives movable part; Power transfer part, its by the driving force of above-mentioned drive division to movable part transmission; Physical quantity test section, it detects at least one in the driving force of the workload that above-mentioned power transfer part transmits, the thrust of above-mentioned power transfer part, the catabiotic amount of above-mentioned drive division, above-mentioned drive division, is used as the physical quantity relevant with the caloric value of above-mentioned power transfer part; Temperature estimation portion, it,, according to inferred the caloric value of above-mentioned power transfer part by the detected physical quantity of above-mentioned physical quantity test section, infers the temperature of above-mentioned power transfer part according to this caloric value of inferring out; Temperature treatment portion, its temperature to power transfer part manages and makes the temperature of being inferred out by the said temperature portion of inferring be no more than predefined temperature.
Said temperature management department can be with at least one in lower member: display part, the said temperature that its demonstration is inferred out; Alarm efferent, it exports alarm in the situation that the said temperature of inferring out surpasses predetermined temperature; Warning display part, it shows warning in the situation that the said temperature of inferring out surpasses predetermined temperature; Running stop, it is in the situation that the said temperature of inferring out surpasses the running that predetermined temperature stops injection moulding machine.
Said temperature management department can have with at least one in lower member: the first condition of molding adjustment part, and its part to moulding action is inserted the operation of the action of stopping, and makes the said temperature of inferring out be no more than predetermined temperature; The second condition of molding adjustment part, it reduces the responsiveness of object movable part; The 3rd condition of molding adjustment part, it is adjusted condition of molding, makes the needed time lengthening of operation step beyond the object movable part in moulding circulation.
Above-mentioned power transfer part can be also the power transfer part of locked mode portion, and above-mentioned physical quantity is the needed workload of clamp force or locked mode.
Above-mentioned power transfer part can be also the power transfer part of injection part, and above-mentioned physical quantity is injection pressure or injects needed workload.
Above-mentioned control device can also possess the cooling end of cooling above-mentioned power transfer part, and the running that said temperature management department controls above-mentioned cooling end makes to infer temperature and is no more than predetermined temperature.
Above-mentioned control device can also possess to above-mentioned power transfer part for fat for fat portion, said temperature management department adjust above-mentioned for fat portion for fat amount or for fat interval, make to infer temperature and be no more than predetermined temperature.
The temperature that above-mentioned power transfer part can be inferred according to detected above-mentioned physical quantity by the said temperature portion of inferring is the ratio with respect to predetermined temperature.
According to the present invention, a kind of control device of injection moulding machine can be provided, it has the temperature treatment function of power transfer part, do not need the special unit such as temperature sensor, just can infer the temperature of the power transfer part such as ball-screw, and manage and make above-mentioned temperature of inferring out be no more than allowable temperature.
Accompanying drawing explanation
Fig. 1 is the figure of an embodiment of control device of injection moulding machine of the temperature treatment function of the explanation power of having transfer part of the present invention.
Fig. 2 is the flow chart of the first example of processing of the temperature treatment function of the power transfer part that has of the control device of key diagram 1.
Fig. 3 is the flow chart of the second example (adjusting the action stop time) of processing of the temperature treatment function of the power transfer part that has of the control device of key diagram 1.
Fig. 4 is the flow chart of the second example (adjusting the responsiveness of movable part) of processing of the temperature treatment function of the power transfer part that has of the control device of key diagram 1.
Fig. 5 is the flow chart of the second example (adjust power transfer part for fat interval) of processing of the temperature treatment function of the power transfer part that has of the control device of key diagram 1.
Fig. 6 is the flow chart that the processing of the temperature estimation carrying out according to the transmission workload of power transfer part is described.
Fig. 7 is the flow chart that the processing of the temperature estimation carrying out according to clamp force is described.
The specific embodiment
Use Fig. 1 that the embodiment of control device of injection moulding machine of the temperature treatment function of the power of having transfer part of the present invention is described.
The main part of injection moulding machine consists of locked mode portion and injection part.Locked mode portion forms by being configured in stationary platen 1 on board 15, tail plank 2, movable platen 3, toggle mechanism 6 etc.Injection part consists of injection cylinder 20, injection helical element 22, injection servomotor 25 etc.
First, locked mode portion is described.Stationary platen 1 and tail plank 2 link by a plurality of connecting rods 4.Between stationary platen 1 and tail plank, movable platen 30 is configured to move freely along connecting rod 4.Fixation side metal die 5a is installed on stationary platen 1, drawer at movable side metal die 5b is installed in movable platen 3.By these fixation side metal die 5a and drawer at movable side metal die 5b, form metal die 5.
Between tail plank 2 and movable platen 3, configure toggle mechanism 6, be arranged on nut on the crosshead 6a of toggle mechanism 6 and screw up with ball-screw 7 screw threads that mode that can not be axially mobile to rotate freely is arranged on tail plank 2.Set up belt (Timing Belt) 9 between with the pulley 11 on the output shaft of servomotor 8 being arranged on the pulley 10 on ball-screw 7 and being arranged on locked mode.
By locked mode, use the driving of servomotor 8, via the power transfering part being formed by pulley 11, belt 9 and pulley 10, drive ball-screw 7, the crosshead 6a of toggle mechanism 6 is advanced, laggard (in Fig. 1 for right, left to) drive toggle mechanism 6, make movable platen 3 advance, retreat in stationary platen 1 direction, carry out mold closing locked mode and the die sinking of metal die 5a, 5b.
At locked mode, with being provided with on servomotor 8, detect the position/speed detectors such as pulse coder 12 of the position of rotation/speed of servomotor 8 for locked mode.Be configured to according to from the position/velocity feedback signal of this location/velocity detector 12, detect location/velocity, the movable platen 3(drawer at movable side metal die 5b of crosshead 6a) location/velocity.
Symbol 13 is injector devices, and injector device 13 is the devices for products formed is released in being arranged on the metal die (drawer at movable side metal die 5b) movable platen 3.Injector device 13 is delivered to not shown push rod by injector with the revolving force of servomotor 13a via the power transfering part 13c and the ball-screw/nut body 13d that consist of pulley, belt (Timing Belt), and this push rod is released products formed from interior release of metal die (drawer at movable side metal die 5b) from metal die (drawer at movable side metal die 5b).In addition, symbol 13b is mounted in the location/velocity detector in servomotor 13a for injector, by detecting position of rotation/speed of servomotor 13a for this injector, detects the location/velocity of push rod.
Symbol 14 is arranged on the clamp force guiding mechanism on tail plank 2, drive clamp force adjustment motor 14a, via transmission mechanism, make to carry out with the screw being arranged on connecting rod 4 the not shown nut rotation that screw thread screws up, change tail plank 2 with respect to the position (changing the position with respect to the stationary platen 1 on board 15) of connecting rod 4, carry out thus the adjustment of clamp force.Above-mentioned clamping apparatus, ejector mechanism etc. are the known parts that injection moulding machine possesses in the past.
Then, injection part is described.For to the interior supply resin material of injection cylinder 20, on the top of injection cylinder 20, be provided with funnel 27.Front end in injection cylinder 20 is provided with spray nozzle part 21, is penetrated with injection helical element 22 in injection cylinder 20.In injection part, be provided with the not shown pressure sensors such as measuring cell of the pressure that detects the molten resin in injection cylinder 20.
Injection helical element 22 rotates with servomotor 23 by helical element, via the power transfering part 24 consisting of pulley, Timing Belt etc., carries out positive and negative rotation.In addition, injection helical element 22 is by injection servomotor 25, and driven via the power transfering part 26 that comprises pulley, frequency band, ball-screw/nut body, the direction of principal axis in injection cylinder 20 in injection cylinder 20 moves.Helical element rotation is provided with and omits illustrated location/velocity detector with servomotor 23, detects position of rotation, the rotating speed of injection helical element 22.In addition, in injection servomotor 25, be provided with and omit illustrated location/velocity detector, detect axial position, the speed of injection helical element 22.
The control device of injection moulding machine then, is described.Symbol 30 is control device of controlling injection moulding machine.Memory 34, bus 33, display device interface 36 that control device 30 possesses processor (CPU) 35, RAM34a, ROM34b etc., consists of, couple together these elements by bus 33.In ROM34b, store the software of the action of controlling movable platen 3, the software etc. of controlling use for controlling the release of injector device 13 is controlled the software of injection moulding machine as a whole.In addition, in embodiments of the present invention, in the ROM34b of memory 34, store for managing the various softwares of temperature of the power transfer part of injection moulding machine of the present invention.
Display device interface 36 is connected with LCD(liquid crystal indicator) 37.In addition, servo interface 32 is connected with the servo amplifier 31 that drives each movable part of injection moulding machine to control the location/velocity of servomotor.In addition, the location/velocity detector being arranged in the servomotor that drives each movable part is connected with servo amplifier 31.In addition, display device interface 36 is connected with the input part that omits illustrated manual input.
In injection moulding machine, in order to drive a plurality of movable parts, use a plurality of servomotors, but in Fig. 1, only express the servo amplifier 31 that locked mode is used with servomotor 13a with servomotor 8 use and injector.In addition, servo amplifier 31 is connected with each servomotor 8, the location/velocity detector 12 of 13a, 13b, and location/velocity detection signal is fed back to each servo amplifier 31.In addition, for helical element rotation, with the servo amplifier of servomotor 23 and injection servomotor 25 and be arranged on the location/velocity detector in each servomotor 23,25, omitted diagram.
Processor (CPU) 35 carries out pre-stored program in the ROM34b of memory 34 according to condition of molding etc., via servo interface 32 to servo amplifier 31 moves of output to each movable part of injection moulding machine.Each servo amplifier 31 according to this move, from the position/velocity feedback signal of each location/velocity detector (12,13b), carry out the FEEDBACK CONTROL of location/velocity, and then carry out Current Feedback Control according to the current feedback signal of the current detector from not shown, each servomotor (8,13a) is driven to control.In addition, each servo amplifier 31 similarly consists of processor and memory etc. with prior art, carries out the processing such as FEEDBACK CONTROL of this location/velocity by the processing of software.In addition, PMC38 is programmable device controller, is for control the device of injection moulding machine main body by SECO.
The structure of above-mentioned injection moulding machine and control device thereof is existing known.The control device 30 of injection moulding machine is by possessing the function of the first embodiment and second embodiment of following explanation, realize special unit such as not needing directly to measure the temperature sensor of temperature and infer the temperature of power transfer part, go forward side by side and exercise to such an extent that above-mentioned temperature of inferring is no more than the management of allowable temperature.At this, power transfer part can be both the ball-screw that drives injection part, metering portion, die opening and closing portion or injection portion etc., or can be also toggle mechanism or the crank mechanism that transmits the driving force of locked mode.
First, use the flow chart of Fig. 2, first example of processing of the temperature treatment function of the power transfer part that the control device of injection moulding machine of the present invention has is described.In the example of this processing, it is characterized in that: detect the workload that power transfer part is transmitted in time per unit, according to detected this workload, infer the caloric value of the time per unit producing in power transfer part, then according to this caloric value of inferring, infer the temperature of power transfer part, if above-mentioned, infer temperature and surpass allowable temperature, show warning.Below, according to the flow chart of each step key diagram 2.
[step SA01] infers the temperature of power transfer part.Can infer by the processing shown in Fig. 6 or Fig. 7 the temperature of power transfer part.
[step SA02] is presented at the temperature of inferring out in step SA01 in picture.
Whether the temperature that [step SA03] judgement is inferred out is higher than predefined allowable temperature, and high in the situation that, (YES) is transferred to step SA04, and high in the situation that, (no) do not transfer to step SA06.
[step SA04] exports alarm.
[step SA05] is presented at warning in picture.
[step SA06] judges whether to remain in operation, and in the situation that continuing, (YES) turns back to step SA01, and in the situation that not continuing, (no) finishes this processing.
Flow chart to Fig. 2 remarks additionally.
While inferring the temperature of power transfer part in step SA01, in the step SE02 of the flow chart of Fig. 6, detect the workload that power transfer part is transmitted in time per unit, infer the caloric value (with reference to Fig. 6) in the time per unit producing in power transfer part.Or, in the step SF02 of the flow chart of Fig. 7, detect the workload that power transfer part is transmitted in every 1 circulation, infer the caloric value (with reference to Fig. 7) in every 1 circulation producing in power transfer part.Except these methods, also can detect the workload that power transfer part is transmitted in per unit operating distance, infer the caloric value in the per unit operating distance producing in power transfer part.
Display unit by way of caution, can be presented at warning (step SA05) in display frame, or for alarm, light emergency warning lamp, or to external device (ED) output caution signal (step SA04).In addition, also can by inferring temperature, be presented in display frame simply, can according to inferring temperature, be shut down by operator.In addition, stopping the circulate function of running of executory injection moulding machine of moulding is the function that the control device of existing injection moulding machine possesses.
Then, use the flow chart of Fig. 3, Fig. 4, Fig. 5, second example of processing of the temperature treatment function of the power transfer part that the control device of injection moulding machine of the present invention has is described.In the example of this processing, with above-mentioned the first example similarly, it is characterized in that: infer the temperature of power transfer part, in the above-mentioned temperature of inferring surpass allowable temperature in the situation that, adjusting condition of molding, to make the temperature of inferring out be below permissible value.
(1) first condition of molding adjustment part adjustment action stop time and adjust the mode of condition of molding
As the method for adjustment of condition of molding, to a part for moulding action, insert the operation of the action of the object movable part that stops.For example,, to the operation of stopping of any local insertion objects movable part in switching part of each operation step such as the switching part of do action, die opening and closing, injection, pressurize, metering, cooling, injection etc.In addition, according to the deviation between the said temperature of inferring out and allowable temperature, magnitude relationship, adjust the time of the above-mentioned operation of stopping, making the above-mentioned temperature of inferring is below allowable temperature.
First, use the flow chart of Fig. 3, the second example of the processing of the temperature treatment function based on power transfer part of passing through for the first condition of molding adjustment part adjustment action stop time is described.
[step SB01] infers the temperature of power transfer part.Can infer by the processing shown in Fig. 6 or Fig. 7 the temperature of power transfer part.
Whether the temperature that [step SB02] judgement is inferred out in step SB01 is higher than predefined allowable temperature, and high in the situation that, (YES) is transferred to step SB03, and high in the situation that, (no) do not transfer to step SB04.
[step SB03] increases the action stop time.
[step SB04] reduces the action stop time.
[step SB05] judges whether to remain in operation, and in the situation that continuing, (YES) turns back to step SB01, and in the situation that not continuing, (no) finishes this processing.
The mode of responsiveness is adjusted in (2) second condition of molding adjustment parts
Then, use the flow chart of Fig. 4, second example of processing of the temperature treatment function based on power transfer part of the responsiveness by the second condition of molding adjustment part adjustment object movable part be described.
[step SC01] infers the temperature of power transfer part.Can infer by the processing shown in Fig. 6 or Fig. 7 the temperature of power transfer part.
Whether the temperature that [step SC02] judgement is inferred out in step SC01 is higher than allowable temperature, and high in the situation that, (YES) is transferred to step SC03, and high in the situation that, (no) do not transfer to step SC04.
[step SC03] reduces the responsiveness of movable part.
[step SC04] improves the responsiveness of movable part.
[step SC05] judges whether to remain in operation, and in the situation that continuing, (YES) turns back to step SC01, and in the situation that not continuing, (no) finishes this processing.
In addition, while improving the responsiveness of movable part in step SC04, the responsiveness that also can limit movable part before the responsiveness of adjusting movable part makes to be no more than speed setting value, can also improve over the speed setting value ground before the responsiveness of adjustment movable part the responsiveness of movable part.
The mode of the needed time of operation step beyond the object movable part in moulding circulation is adjusted in (3) the 3rd condition of molding adjustment parts
As the method for adjustment of condition of molding, for example the dwell time be can extend, cool time, or injection speed, metering rotating speed reduced, make the needed time lengthening of operation step beyond the object movable part in moulding circulation.
(4) adjust the mode for fat interval of power transfer part
In addition, the unit for fat to power transfer part also can be set, controlling and supply fat amount, supplying fat interval to make to infer temperature is below permissible value.
Therefore, use the flow chart of Fig. 5, second example of processing of the temperature treatment function based on power transfer part at the confession fat interval of adjustment power transfer part be described.
[step SD01] infers the temperature of power transfer part.Can infer by the processing shown in Fig. 6 or Fig. 7 the temperature of power transfer part.
Whether the temperature that [step SD02] judgement is inferred out in step SD01 is higher than predefined allowable temperature, and high in the situation that, (YES) is transferred to step SD03, and high in the situation that, (no) do not transfer to step SD04.
[step SD03] shortens the confession fat interval of power transfer part.
[step SD04] extends the confession fat interval of power transfer part.
[step SD05] judges whether to remain in operation, and in the situation that continuing, (YES) turns back to step SD01, and in the situation that not continuing, (no) finishes this processing.
In addition, while extending the confession fat interval of power transfer part in step SD04, also can adjust long for fat interval for before fat interval making unlike adjusting power transfer part, can also adjust make than the power of adjustment transfer part for fat interval before supply fat interval long.
In the processing shown in above-mentioned flow chart, the fixing for fat amount each time by power transfer part, extends or shortens for fat interval, but also can fix for fat interval, and increase and decrease each time for fat amount.
(5) mode of the running of the cooling end of control transfer part
Also the unit of cooling Power transfer part can be set, it is below permissible value that the running of control cooling unit makes to infer temperature.
In the second example of the processing of the above-mentioned temperature treatment function based on power transfer part, adjusting condition of molding, to make the temperature of the power transfer part of inferring out be below permissible value, but also can adjust condition of molding, to make workload that capable transfer part the transmits time average in every 1 circulation be below permissible value, and can also adjust presumed value that condition of molding makes the caloric value that produces in the power transfer part time average in every 1 circulation is below permissible value.
Then, use Fig. 6 and Fig. 7 explanation to infer the method for the temperature of power transfer part.Infer the caloric value producing in power transfer part, according to the above-mentioned caloric value of inferring out, from power transfer part to outside heat dissipation capacity, power transfer part thermal capacity, infer the temperature of power transfer part.
The processing of the temperature estimation that the workload that the flowchart text of use Fig. 6 transmits according to power transfer part is carried out.
[step SE01] according to the thrust of power transfer part and translational speed, uses following formula (1) to calculate the workload E in the time per unit that this power transfer part transmits.
E=Fx
V
E: the workload in time per unit
F: thrust
V: translational speed ... (1)
Workload E in the time per unit that [step SE02] transmits according to the power transfer part calculating in step SE01, infers the caloric value Q1 of power transfer part in time per unit by following formula (2).
Q1=E×k1
Q1: the caloric value in time per unit
K1: coefficient ... (2)
[step SE03] infers the heat dissipation capacity Q2 of power transfer part in time per unit according to following formula (3), and then according to following formula (4), infers the temperature T of power transfer part, finishes this processing.In addition,, in formula (3), according to the temperature T of inferring of up to the present inferring, calculate the heat dissipation capacity in time per unit.At this moment, in the situation that once also do not infer the computing of temperature, also can be made as and infer temperature T=0 and process.
Q2=T×k2
Q2: the heat dissipation capacity in time per unit
T: infer temperature
K2: coefficient ... (3)
T：∫｛（Q1-Q2）/C｝dt
T: infer temperature
C: thermal capacity ... (4)
The processing of the temperature estimation that the flowchart text of use Fig. 7 carries out according to clamp force.
[step SF01] detects clamp force.
[step SF02], according to detected clamp force in step SF01, used following formula (5) to infer the caloric value Q3 of power transfer part in every 1 circulation.
Q3=Fc×k3
Q3: the caloric value in every 1 circulation
K3: coefficient ... (5)
[step SF03] infers the heat dissipation capacity Q4 of power transfer part in every 1 circulation according to following formula (6), and then according to following formula (7), infers the temperature T of power transfer part, finishes this processing.In addition,, in formula (6), according to the temperature of inferring of up to the present inferring, calculate the heat dissipation capacity in every 1 circulation.At this moment, in the situation that once also do not infer the computing of temperature, also can be made as and infer temperature T=0 and process.
Q4=T×k4
Q4: the heat dissipation capacity in every 1 circulation
T: infer temperature
K4: coefficient ... (6)
T：∫｛（Q3-Q4）/C｝dt
T: infer temperature
C: thermal capacity ... (7)
For from power transfer part to outside heat dissipation capacity, both can be as described above the temperature of inferring of power transfer part be multiplied by predetermined coefficient and calculated, also the caloric value producing can be multiplied by predetermined coefficient in power transfer part and calculate.In addition, for the thermal capacity of power transfer part, both can obtain according to the design load of power transfer part, also can pre-determine by experiment.In addition, for the temperature of inferring of power transfer part, both can use absolute temperature scale (Kelvin), equitemperature unit Celsius to obtain, the ratio (%) also can be used as with respect to allowable temperature is obtained.Also can, using room temperature as initial value, as the temperature rising value with respect to room temperature, obtain and infer temperature.For the ratio with respect to allowable temperature, the temperature before room temperature or running is made as to 0%, allowable temperature is made as to 100%.
Below, the physical quantity relevant with caloric value is described.
In hydraulic type or DYN dynamic injection moulding machine, the workload that the workload that can transmit in time per unit according to power transfer part as described above, power transfer part are transmitted in every 1 circulation, infers the caloric value producing in power transfer part.Or the workload that also can transmit in per unit operating distance according to power transfer part is inferred.In addition, in the situation that using servomotor to drive movable part, also can infer according to catabiotic amount or the driving force of servomotor.In addition, in the situation that object movable part is locked mode portion, also can infer according to clamp force or the needed workload of locked mode.In addition, in the situation that object movable part is injection part, also can or injects needed workload and infer according to injection pressure.
Claims (8)
1. a control device for injection moulding machine, is characterized in that, possesses:
Drive division, it drives movable part;
Power transfer part, its by the driving force of above-mentioned drive division to movable part transmission;
Physical quantity test section, it detects at least one in the driving force of the workload that above-mentioned power transfer part transmits, the thrust of above-mentioned power transfer part, the catabiotic amount of above-mentioned drive division, above-mentioned drive division, is used as the physical quantity relevant with the caloric value of above-mentioned power transfer part;
Temperature estimation portion, it infers the caloric value of above-mentioned power transfer part according to the detected physical quantity of above-mentioned physical quantity test section, infer the temperature of above-mentioned power transfer part according to this caloric value of inferring;
Temperature treatment portion, its temperature to power transfer part manages the temperature that the said temperature portion of inferring is inferred out and is no more than predefined temperature.
2. the control device of injection moulding machine according to claim 1, is characterized in that,
Said temperature management department can be with at least one in lower member: display part, the said temperature that its demonstration is inferred out; Alarm efferent, it exports alarm in the situation that the said temperature of inferring out surpasses predetermined temperature; Warning display part, it shows warning in the situation that the said temperature of inferring out surpasses predetermined temperature; Running stop, it is in the situation that the said temperature of inferring out surpasses the running that predetermined temperature stops injection moulding machine.
3. the control device of injection moulding machine according to claim 1, is characterized in that,
Said temperature management department has with at least one in lower member: the first condition of molding adjustment part, and its part to moulding action is inserted the operation of the action of stopping, and makes the said temperature of inferring out be no more than predetermined temperature; The second condition of molding adjustment part, it reduces the responsiveness of object movable part; The 3rd condition of molding adjustment part, it is adjusted condition of molding, makes the needed time lengthening of operation step beyond the object movable part in moulding circulation.
4. the control device of injection moulding machine according to claim 1, is characterized in that,
The power transfer part that above-mentioned power transfer part is locked mode portion, above-mentioned physical quantity is the needed workload of clamp force or locked mode.
5. the control device of injection moulding machine according to claim 1, is characterized in that,
The power transfer part that above-mentioned power transfer part is injection part, above-mentioned physical quantity is injection pressure or injects needed workload.
6. the control device of injection moulding machine according to claim 1, is characterized in that,
Above-mentioned control device also possesses the cooling end of cooling above-mentioned power transfer part, and the running that said temperature management department controls above-mentioned cooling end makes to infer temperature and is no more than predetermined temperature.
7. the control device of injection moulding machine according to claim 1, is characterized in that,
Above-mentioned control device also possess to above-mentioned power transfer part for fat for fat portion, said temperature management department adjust above-mentioned for fat portion for fat amount or for fat interval, make to infer temperature and be no more than predetermined temperature.
8. the control device of injection moulding machine according to claim 1, is characterized in that,
Said temperature is inferred portion according to detected above-mentioned physical quantity, by the temperature estimation of above-mentioned power transfer part, is the ratio with respect to predetermined temperature.
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| JP2013-048382 | 2013-03-11 | ||
| JP2013048382A JP5727536B2 (en) | 2013-03-11 | 2013-03-11 | Control device for injection molding machine having temperature management function of force transmission part |
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| CN104044250B CN104044250B (en) | 2016-08-17 |
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| CN106003635A (en) * | 2015-03-27 | 2016-10-12 | 住友重机械工业株式会社 | Injection molding machine and operation screen of injection molding machine |
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| JP6943909B2 (en) * | 2019-03-06 | 2021-10-06 | ファナック株式会社 | Injection molding machine management system and centralized injection molding machine management system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198207A (en) * | 1998-01-07 | 1999-07-27 | Sumitomo Heavy Ind Ltd | Monitoring apparatus for motor-driven injection molding machine |
| US20010022983A1 (en) * | 2000-03-17 | 2001-09-20 | Shuichi Arai | Protection apparatus for an injection molding machine |
| CN1315244A (en) * | 2000-03-27 | 2001-10-03 | 住友重机械工业株式会社 | Method for controlling injection machine capable of reducing weight change of moulded products |
| CN101590688A (en) * | 2008-05-26 | 2009-12-02 | 发那科株式会社 | The abnormal detector of injection moulding machine |
| CN102806642A (en) * | 2011-05-30 | 2012-12-05 | 东芝机械株式会社 | Locking apparatus and control method of locking apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08135751A (en) * | 1994-11-08 | 1996-05-31 | Okuma Mach Works Ltd | Cooling device for ball screw |
| JP2010133556A (en) * | 2008-10-28 | 2010-06-17 | Nsk Ltd | Ball screw device |
-
2013
- 2013-03-11 JP JP2013048382A patent/JP5727536B2/en active Active
-
2014
- 2014-03-03 DE DE102014003169.1A patent/DE102014003169B4/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198207A (en) * | 1998-01-07 | 1999-07-27 | Sumitomo Heavy Ind Ltd | Monitoring apparatus for motor-driven injection molding machine |
| US20010022983A1 (en) * | 2000-03-17 | 2001-09-20 | Shuichi Arai | Protection apparatus for an injection molding machine |
| CN1315244A (en) * | 2000-03-27 | 2001-10-03 | 住友重机械工业株式会社 | Method for controlling injection machine capable of reducing weight change of moulded products |
| CN101590688A (en) * | 2008-05-26 | 2009-12-02 | 发那科株式会社 | The abnormal detector of injection moulding machine |
| CN102806642A (en) * | 2011-05-30 | 2012-12-05 | 东芝机械株式会社 | Locking apparatus and control method of locking apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003635A (en) * | 2015-03-27 | 2016-10-12 | 住友重机械工业株式会社 | Injection molding machine and operation screen of injection molding machine |
| CN106003635B (en) * | 2015-03-27 | 2018-05-29 | 住友重机械工业株式会社 | The operation screen of injection (mo(u)lding) machine and injection (mo(u)lding) machine |
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| JP5727536B2 (en) | 2015-06-03 |
| JP2014172325A (en) | 2014-09-22 |
| DE102014003169A1 (en) | 2014-09-11 |
| CN104044250B (en) | 2016-08-17 |
| DE102014003169B4 (en) | 2020-07-09 |
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