CN101784380A - Clamping device and clamping control method - Google Patents
Clamping device and clamping control method Download PDFInfo
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- CN101784380A CN101784380A CN200880104443A CN200880104443A CN101784380A CN 101784380 A CN101784380 A CN 101784380A CN 200880104443 A CN200880104443 A CN 200880104443A CN 200880104443 A CN200880104443 A CN 200880104443A CN 101784380 A CN101784380 A CN 101784380A
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- clamping force
- mold clamping
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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
- B29C45/64—Mould opening, closing or clamping 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/22—Opening, closing or clamping by rectilinear movement
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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
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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
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
- B29C2045/1793—Machine parts driven by an electric motor, e.g. electric servomotor by an electric linear motor
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C2045/645—Mould opening, closing or clamping devices using magnetic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manipulator (AREA)
Abstract
A clamping device for exerting clamping force by an electromagnet comprises a first current command generating unit for generating a current command to be given to the electromagnet according to the target clamping force, a clamping force detecting unit for detecting the clamping force exerted by the electromagnet, and a second current command generating unit for generating a correction command for correcting the current command according to the detected value of the clamping force detected by the clamping force detecting unit. Thus, the clamping device capable of properly controlling the clamping force exerted by the electromagnet is provided.
Description
Technical field
The present invention relates to mold closing mechanism and clamping control method.
Background technology
In the past, in injection machine, resin was filled into from the injection of the injection nozzle of injection device the die cavity space between fixed mould and the moveable die, and made its curing, obtained formed products thus.And,, be equipped with mold closing mechanism for moveable die being moved with respect to the said fixing mould and carrying out mold closing, matched moulds and die sinking.
In this mold closing mechanism, exist and pass through to the mold closing mechanism of the oily fluid pressure type that drives of hydraulic cylinder supply and by electric motor driven DYN dynamic mold closing mechanism, but this DYN dynamic mold closing mechanism controlled higher, can not pollute periphery and energy efficiency is higher, so used morely.In this case, make the ball-screw rotation produce thrust by drive motor, and this thrust is amplified, produce bigger mold clamping force by elbow type mechanism.
Yet in the DYN dynamic mold closing mechanism of above-mentioned formation, owing to use elbow type mechanism, so on the characteristic of this elbow type mechanism, be difficult to change mold clamping force, response and less stable can not be controlled mold clamping force in shaping.Therefore, provide the mold closing mechanism that can directly be used as mold clamping force by the thrust that ball-screw produces.In this case, because the torque and the mold clamping force of motor are in direct ratio, so can in shaping, control mold clamping force.
But, in above-mentioned existing mold closing mechanism, not only the withstand load of ball-screw lower, can not produce bigger mold clamping force, and because the torque ripple that in motor, takes place and mold clamping force can change.In addition, in order to produce mold clamping force, need often supply with electric current to motor, the power consumption of motor and heating quantitative change are many, so need make the specified output respective amount ground of motor become big, the cost of mold closing mechanism uprises.
Therefore, consider in the die opening and closing action mold closing mechanism (for example patent documentation 1) that uses linear motor, in mould assembling action, utilizes the absorption affinity of electromagnet.In this mold closing mechanism,, mold clamping force is carried out FEEDBACK CONTROL for the mold clamping force in the matched moulds operation is remained necessarily.In the past, carried out the control part of this FEEDBACK CONTROL, constituted like that below for example.
Fig. 1 is the figure of the configuration example of the existing control part of expression.In Fig. 1,100 expression mold closing mechanisms.The control part that 160 expressions are controlled the mold clamping force of mold closing mechanism 100.Control part 160 has adder 161, integrator 162 and amplifier 163 etc.For adder 161, the instruction of the size of mold clamping force instruction (as the mold clamping force (target mold clamping force) of target) is represented in the input of never illustrated upward level controller, and imports the mold clamping force detected values from the mold clamping force detector 155 of mold closing mechanism 100.Adder 161 calculates error (mold clamping force error) with respect to the target mold clamping force based on mold clamping force command value and mold clamping force detected value, and exports to integrator 162.Integrator 162 is by carrying out integration to the mold clamping force error, calculates the current value of revising the mold clamping force error, and will represent that the current-order of this current value exports to amplifier 163.The electric current supply of the current value that amplifier 163 is represented with current-order is to electromagnet 49.After, the mold clamping force detected value is input to adder 161 successively, carries out FEEDBACK CONTROL.
Patent documentation 1: Japanese kokai publication hei 10-244567 communique
But,,, be difficult to mold clamping force is controlled to be preferred state in view of the characteristic of electromagnet only by carrying out general FEEDBACK CONTROL.
Fig. 2 is the figure that is used for illustrating the mold clamping force that obtains by existing FEEDBACK CONTROL.In Fig. 2, transverse axis is represented the process of time, and the longitudinal axis is represented the mold clamping force detected value.Curve L0 is a curve of representing the mold clamping force that obtains by above-mentioned FEEDBACK CONTROL through coming in respect of time.
After the beginning matched moulds, the slope of curve L0 is very mild.This results from rising response bad of electromagnet.That is, it is former because even electromagnet has been supplied to the electric current of certain current value, electromagnetic force is also less when the distance between the gap is big, so can not momentary action and the corresponding power of its current value.Therefore, the mold clamping force detected value arrives the time that needs till the target mold clamping force to a certain degree.
Like this, in simple FEEDBACK CONTROL, existence can not promptly obtain the problem of target mold clamping force.Time till arriving the target mold clamping force, shaping circulates, and also respective amount ground was elongated when elongated, and productivity ratio descends.
Summary of the invention
The present invention carries out in view of the above problems, and its purpose is to provide a kind of mold closing mechanism and the clamping control method that can suitably control the mold clamping force that uses electromagnet and act on.
Therefore, in order to address the above problem, the present invention is a kind of mold closing mechanism, by electromagnet effect mold clamping force, it is characterized in that having: the first current-order generating unit generates instructing to above-mentioned current of electromagnet corresponding to the target mold clamping force; The mold clamping force test section detects the above-mentioned mold clamping force of above-mentioned electromagnet; And the second current-order generating unit, based on by the detected mold clamping force detected value of above-mentioned mold clamping force test section, generate the revision directive of revising above-mentioned current-order.
In addition, the invention is characterized in, has correcting current command calculations portion, this correcting current command calculations portion generates the above-mentioned revision directive that instruction department generates based on the above-mentioned current-order that is generated by the above-mentioned first current-order generating unit with by above-mentioned second electric current, calculates the correcting current instruction of supplying with to above-mentioned electromagnet.
In addition, the invention is characterized in that the above-mentioned first current-order generating unit generates ascending current instruction with the above-mentioned mold clamping force of generation and the current-order of keeping current-order of keeping the mold clamping force that is produced.
In addition, the invention is characterized in that the above-mentioned second current-order generating unit is according to keeping mold clamping force that current-order keeps and by the error between the detected mold clamping force detected value of above-mentioned mold clamping force test section, generate above-mentioned revision directive based on above-mentioned.
In addition, the invention is characterized in that the above-mentioned first current-order generating unit generates expression than the current-order corresponding to the big current value of the electric current of above-mentioned target mold clamping force when the beginning matched moulds.
In addition, the invention is characterized in, the above-mentioned second current-order generating unit, the error based between above-mentioned target mold clamping force and the above-mentioned mold clamping force detected value generates above-mentioned revision directive.
In addition, the invention is characterized in to have based on above-mentioned mold clamping force detected value and switch the action of the above-mentioned second electric current generating unit and the switching part that stops.
In addition, the invention is characterized in that above-mentioned switching part based on keeping under the situation that current-order controls in the current-order that is generated by the first current-order generating unit, switches the action of the above-mentioned second current-order generating unit and stops.
In addition, the invention is characterized in, above-mentioned switching part, should keep the target mold clamping force during, make the action of the above-mentioned second current-order generating unit.
In addition, the invention is characterized in that above-mentioned switching part during the regulation behind the beginning matched moulds, stops the above-mentioned second current-order portion.
In addition, the invention is characterized in that above-mentioned switching part during the regulation when the change from above-mentioned target mold clamping force begins, stops the above-mentioned second current-order portion.
In addition, the invention is characterized in that above-mentioned switching part is at above-mentioned target mold clamping force at 0 o'clock, the above-mentioned second current-order portion is stopped.
The effect of invention:
According to the present invention, can provide a kind of mold closing mechanism and the clamping control method that can suitably control the mold clamping force that uses electromagnet and act on.
Description of drawings
Fig. 1 is the figure of the configuration example of the existing control part of expression.
Fig. 2 is the figure that is used for illustrating the mold clamping force that obtains by existing FEEDBACK CONTROL.
The figure of the state when Fig. 3 is expression die device of embodiment of the present invention and mold closing mechanism mold closing.
The figure of the state when Fig. 4 is expression die device of embodiment of the present invention and mold closing mechanism die sinking.
Fig. 5 is the figure of configuration example of the control part of expression first embodiment.
Fig. 6 is the figure that is used for illustrating the current pattern that is generated by the current pattern maker.
Fig. 7 is the figure that is used for illustrating based on the control of the mold clamping force of the control part of first embodiment.
Fig. 8 is the figure of configuration example of the control part of expression second embodiment.
Fig. 9 is the figure that is used for illustrating based on the control of the mold clamping force of the control part of second embodiment.
Figure 10 is that the figure of variation of the present invention of rotary-type motor that has been sealed the generation zone in magnetic field by the motor frame has been used in expression.
The explanation of symbol:
10 mold closing mechanisms
11 fixed forms
But 12 moving platens
But 12a moving platen flange part
13 rear pattern plates
14 connecting rods
15 fixed moulds
16 moveable dies
17 injection devices
18 injection nozzles
19 die devices
21 guide pillars
22 adsorption plates
23 guide holes
24 large-diameter portions
25 minor diameter parts
28 linear motors
29 stators
31 movable pieces
37 electromagnet unit
39 bars
41,42 holes
43 screw threads
44 nuts
45 coils set portion
46 iron cores
47 yokes
48 coils
49 electromagnet
51 adsorption sections
55 mold clamping force detectors
71 ball-screw nuts
72 ballscrew shafts
73 motor brackets
74 die opening and closing motors
75 position detectors
Level controller on 601
602 current pattern makers
603 integrators
604 amplifiers
605,606 adders
607 switch monitor
The Br1 parts of bearings
The Gd guide rail
The Fr framework
N1, n2 nut
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are at length described.In addition, in the present embodiment, for mold closing mechanism, but the moving direction of the moving platen in the time of will carrying out mold closing is made as the place ahead, but the moving direction of the moving platen in the time of will carrying out die sinking is made as the rear, and for injection device, the moving direction of the screw rod in the time of will injecting is made as the place ahead, the moving direction of the screw rod in the time of will measuring is made as the rear, and describes.
The figure of the state when Fig. 3 is expression die device of embodiment of the present invention and mold closing mechanism mold closing.The figure of the state when Fig. 4 is expression die device of embodiment of the present invention and mold closing mechanism die sinking.
In the drawings, the 10th, mold closing mechanism; Fr is that the framework Gd of injection machine is laid on that this framework Fr goes up and constitutes track, mold closing mechanism 10 is supported and two guide rails (only representing 1 among two guide rail Gd in the drawings) of conduct the 1st guide member of channeling conduct; The 11st, put on this guide rail Gd, with respect to said frame Fr and guide rail Gd fixing, as the fixed form of the 1st fixed part; Separate predetermined distance and relatively be equipped with rear pattern plate 13 with this fixed form 11 as the 2nd fixed part with fixed form 11; Between said fixing template 11 and rear pattern plate 13, set up 4 as the connecting rod 14 (only representing two in 4 connecting rods 14 in the drawings) that links parts.In addition, above-mentioned rear pattern plate 13 puts on above-mentioned guide rail Gd, so that can be flexible and mobile a little with respect to guide rail Gd along with connecting rod 14.
In addition, in the present embodiment, fixed form 11 is fixed with respect to framework Fr and guide rail Gd, and rear pattern plate 13 can be mobile a little with respect to guide rail Gd, but rear pattern plate 13 is fixed with respect to framework Fr and guide rail Gd, made the fixed form 11 can be mobile a little with respect to guide rail Gd.
But along above-mentioned connecting rod 14 and with fixed form 11 relatively, be equipped with moving platen 12 as the 1st movable member along the die opening and closing direction free to advance or retreatly.For this reason, but above-mentioned moving platen 12 with connecting rod 14 corresponding positions on, be formed with the not shown guide hole that is used for making connecting rod 14 to connect.
Leading section at above-mentioned connecting rod 14 is formed with the 1st not shown threaded portion, and above-mentioned connecting rod 14 is fixed on the fixed form 11 by above-mentioned the 1st threaded portion and nut n1 are screwed togather.In addition, the established part at above-mentioned each connecting rod 14 rear, outstanding and form the guide pillar 21 of external diameter conduct 2nd guide member littler from the rear end face of rear pattern plate 13 than connecting rod 14 with connecting rod 14 towards the rear.And, near the rear end face of rear pattern plate 13, being formed with the 2nd not shown threaded portion, said fixing template 11 and rear pattern plate 13 link by above-mentioned the 2nd threaded portion and nut n2 are screwed togather.In the present embodiment, guide pillar 21 forms with connecting rod 14, but also guide pillar 21 and connecting rod 14 splits ground can be formed.
In addition, but be fixed with fixed mould 15 on the said fixing template 11, on above-mentioned moving platen 12, be fixed with moveable die 16 respectively as the 2nd mould as the 1st mould, but advance and retreat along with above-mentioned moving platen 12, make fixed mould 15 and moveable die 16 contact separations, carry out mold closing, matched moulds and die sinking.In addition, along with carrying out matched moulds, form a plurality of not shown die cavity spaces between fixed mould 15 and moveable die 16, the not shown resin of injecting from the injection nozzle 18 of injection device 17 as moulding material is filled into the above-mentioned various cavity space.In addition, constitute die device 19 by fixed mould 15 and moveable die 16.
And, but the adsorption plate 22 of conduct the 2nd movable member that sets abreast with above-mentioned moving platen 12 set along above-mentioned each guide pillar 21 at the rear of rear pattern plate 13 free to advance or retreatly, and by guide pillar 21 guiding.In addition, on above-mentioned adsorption plate 22, on the position corresponding, be formed with and be used for guide hole 23 that guide pillar 21 is connected with each guide pillar 21.This guide hole 23 possesses: large-diameter portion 24, in the front end face upper shed, accommodate ball nut n2; With minor diameter part 25,, possesses the sliding surface that slides with respect to guide pillar 21 in the rear end face upper shed of adsorption plate 22.In the present embodiment, adsorption plate 22 is by guide pillar 21 guiding, but adsorption plate 22 not only can be by guide pillar 21, can also guide by guide rail Gd.
Yet, but in order to make above-mentioned moving platen 12 advance and retreat, but between moving platen 12 and framework Fr, be equipped with as linear motor 28 the 1st drive division and drive division that use as die opening and closing.Above-mentioned linear motor 28 possesses as the 1st and drives the stator 29 of key element and as the 2nd movable piece 31 that drives key element, but said stator 29 is parallel with above-mentioned guide rail Gd and corresponding to the moving range of moving platen 12 be formed on the said frame Fr, but above-mentioned movable piece 31 and said stator 29 are relative and be formed on the lower end of moving platen 12 with spreading all over prescribed limit.
Above-mentioned movable piece 31 possesses iron core 34 and coil 35.And that above-mentioned iron core 34 possesses is outstanding towards stator 29, with a plurality of magnetic pole tooths 33 that prescribed distance forms, above-mentioned coil 35 is wrapped on each magnetic pole tooth 33.In addition, but above-mentioned magnetic pole tooth 33 is to form in parallel to each other on the direction at right angle at the moving direction with respect to moving platen 12.In addition, said stator 29 possesses not shown iron core and extends to form not shown permanent magnet on this iron core.This permanent magnet is by alternately and make each magnetic pole of the N utmost point and the S utmost point magnetic with the spacing identical with above-mentioned magnetic pole tooth 33 to form.
Therefore, when when above-mentioned coil 35 being supplied with predetermined electric current drive linear motor 28, movable piece 31 advance and retreat, but moving platen 12 advance and retreat thereupon, and can carry out mold closing and die sinking.
In addition, in the present embodiment, setting permanent magnet on the stator 29, on movable piece 31, setting coil 35, but also can set coil on the stator, on movable piece, set permanent magnet.In the case, coil does not move along with driving linear motor 28, so can be used for wiring to the coil supply capability easily.
Yet, but when before the above-mentioned moving platen 12 and then moveable die 16 during, carry out mold closing with fixed mould 15 butts, then carry out matched moulds.And,, between rear pattern plate 13 and adsorption plate 22, be equipped with as electromagnet unit 37 the 2nd drive division and drive division that use as matched moulds in order to carry out matched moulds.And, be equipped with bar 39 as the mold clamping force transferring elements free to advance or retreatly, but connecting rear pattern plates 13 and adsorption plate 22, extends by this bar 39 and will moving platen 12 and adsorption plate 22 bindings.But this bar 39 when mold closing and during die sinking with the advance and retreat interlock of moving platen 12 and make adsorption plate 22 advance and retreat, but when matched moulds, will pass to moving platen 12 by the mold clamping force that electromagnet unit 37 produces.
In addition, but constitute mold closing mechanism 10 by fixed form 11 moving platens 12, rear pattern plate 13, adsorption plate 22, linear motor 28, electromagnet unit 37, bar 39 etc.
In addition, in mold closing mechanism 10, control as die opening and closing with the action of the linear motor 28 of drive division with as the action of matched moulds with the electromagnet unit 37 of drive division by control part 60.Details for control part 60 is narrated in the back.
Above-mentioned electromagnet unit 37 is included in the electromagnet 49 of conduct the 1st driver part that rear pattern plate 13 sides form and the adsorption section 51 of conduct the 2nd driver part that forms in adsorption plate 22 sides, this adsorption section 51 is formed on the established part of above-mentioned adsorption section 22 front end faces, is formed in the present embodiment on the adsorption plate 22 to surround above-mentioned bar 39 and the part relative with electromagnet 49.In addition, the established part of rear pattern plate 13 rear end faces, in the present embodiment above-mentioned bar 39 a little above and below, be formed with in parallel to each other have a rectangular cross sectional shape set two grooves 45 of portion as coil, between each groove 45, form coil 46, form yoke 47 in other parts with rectangular shape.And, package coil 48 on above-mentioned iron core 46.
In addition, above-mentioned iron core 46 and yoke 47 constitute by the Construction integration of foundry goods, but also can be by will forming by the thin plate that the ferromagnetism body forms is stacked, and constitute the electromagnetism stacked steel plate.
In the present embodiment, form differently electromagnet 49, form differently adsorption section 51, but also electromagnet can be formed the part of rear pattern plate 13, the adsorption section formed the part of adsorption plate 22 with adsorption plate 22 with rear pattern plate 13.
Therefore, in electromagnet unit 37, when above-mentioned coil 48 was supplied with electric current (DC current), electromagnet 49 was driven, and adsorption section 51 is adsorbed, and can produce above-mentioned mold clamping force.
And, above-mentioned bar 39 set into, but link at rearward end and adsorption plate 22, in leading section and moving platen 12 bindings.Therefore, but bar 39 when mold closing along with the preceding of moving platen 12 and then advance, and adsorption plate 22 is advanced, but when die sinking, retreats, and adsorption plate 22 is retreated along with retreating of moving platen 12.
For this reason, on the middle body of above-mentioned rear pattern plate 13, form the hole 41 that is used for making bar 39 perforations, on the middle body of above-mentioned adsorption plate 22, form and be used for hole 42 that bar 39 is connected, set the parts of bearings Br1 of the sleeve etc. of steady arm 39 sliding freely towards the opening of above-mentioned hole 41 leading sections.In addition, be formed with screw thread 43, make this screw thread 43 and screwed togather by the nut of supporting freely with respect to adsorption plate 22 rotations 44 as the thick guiding mechanism of mould in the rearward end of above-mentioned bar 39.
On the outer peripheral face of above-mentioned nut 44, be formed with not shown large diameter gear, on above-mentioned adsorption plate 22, be equipped with the thick adjustment motor of not shown mould, make to be installed in the thick adjustment of this mould with the gears engaged on the gear of the minor diameter on the output shaft of motor and the outer peripheral face that is formed on above-mentioned nut 44 as the drive division of the thick adjustment usefulness of mould.
And, when driving the thick adjustment of mould corresponding to the thickness of die device 19 with motor, when making above-mentioned nut 44 with respect to screw thread 43 rotation ormal weights, bar 39 is adjusted with respect to the position of adsorption plate 22, and but adsorption plate 22 is adjusted with respect to the position that fixed form 11 reaches moving platen 12, can make gap delta become suitable value.That is, but by changing the relative position of moving platen 12 and adsorption plate 22, carry out the thick adjustment of mould thus.
In addition, in the present embodiment, the integral body of iron core 46, yoke 47 and adsorption plate 22 is made of the electromagnetism stacked steel plate, but also can constitute around the iron core 46 of rear pattern plate 13 and adsorption section 51 by the electromagnetism stacked steel plate.In the present embodiment, on the rear end face of rear pattern plate 13, form electromagnet 49, and with this electromagnet 49 relatively, advance and retreat set adsorption section 51 freely on the front end face of adsorption plate 22, but also can on the rear end face of rear pattern plate 13, set the adsorption section, and with this adsorption section relatively, advance and retreat set electromagnet freely on the front end face of adsorption plate 22.
Then, the details to control part 60 describes.Fig. 5 is the figure of configuration example of the control part of expression first embodiment.In the first embodiment, control part 60 is described as control part 60a.Control part 60a is made of last level controller 601, current pattern maker 602, integrator 603, amplifier 604, adder 605 and 606 etc.
Mold clamping force instruction from last level controller 601 is imported in the current pattern maker 602.Current pattern maker 602 for example is made of servo card, generates and the represented corresponding current pattern of mold clamping force of mold clamping force instruction.Here, so-called current pattern is meant the information of expression to the seasonal effect in time series current value of electromagnet 49 (coil 48) supply.Current pattern maker 602 is according to the current pattern that is generated, the signal (current-order) of the current value that expression is supplied with to electromagnet 49, process in respect of time and export to adder 606 successively.
Matched moulds instruction from last level controller 601 also is imported in the adder 605.Also adder 605 is imported by the mold clamping force detector 55 detected mold clamping force detected values (actual value) that are arranged at mold closing mechanism 10.Adder 605 is calculated the error (mold clamping force error) of actual value with respect to the mold clamping force instruction based on the value (mold clamping force command value) and the mold clamping force detected value of the represented mold clamping force of mold clamping force instruction.The mold clamping force error that calculates is imported in the integrator 603.In addition, mold clamping force detector 55 also can be made of the sensor of the elongation that detects connecting rod 14 or the sensor that is provided in detectors of load such as force cell on the bar 39 or detects the magnetic flux between electromagnet 49 and the adsorption section 51.
In addition, in the present embodiment, constitute the first current-order generating unit 610, constitute the second current-order generating unit 620 by adder 605 and integrator 603 by current pattern maker 602.
Then, the action to the mold closing mechanism 10 of above-mentioned formation describes.
When but moving platen 12 arrives the position (position of moveable die 16 and fixed mould 15 butts or butt position a little before) of regulation, beginning matched moulds operation.That is, last level controller 61 will be represented the mold clamping force instruction of the desired value (target mold clamping force) of predefined mold clamping force, export to current pattern maker 602 and adder 605.Current pattern maker 602 generates the current pattern corresponding to the mold clamping force instruction, according to instructing through output current accordingly of this current pattern and time.Here, the mode that improves with the rising response based on the mold clamping force of electromagnet 49 generates current pattern.
Fig. 6 is the figure that is used for illustrating the current pattern that is generated by the current pattern maker.In Fig. 6 (A), current pattern L1 is represented by the broken line of dotted line.The longitudinal axis of Fig. 6 (A) is represented current value, and transverse axis is represented the process of time.On the other hand, in Fig. 6 (B), be illustrated in the transition that are supplied directly onto the mold clamping force that obtains under the situation in the coil 48 with the corresponding current value of current pattern by curve L2.The longitudinal axis of Fig. 6 (B) is represented mold clamping force, and transverse axis is represented the process of time.In addition, transverse axis (A) is consistent with the process of the time of the transverse axis of (B).
As shown in the figure, current pattern L1, the specified time limit from the beginning matched moulds time, (t1～t2) comprise the ascending current instruction that produces mold clamping force, (after the t2) comprised the current-order of keeping of keeping mold clamping force afterwards.In ascending current instruction, the electric current, for example maximum current (electric current of the lowest high-current value that control part 60a can suitably supply with) that surpass corresponding to the electric current (rated current) of the current value of target mold clamping force are used as current instruction value.In keeping current-order, rated current is used as current instruction value.If based on this current pattern, then during t1～t2, will surpass the electric current supply of rated current significantly in coil 48.It is big that the inclination of the part of being represented by symbol a in the curve L2 of Fig. 6 (B) as a result, (during t1～t2) becomes.That is, the rising response of electromagnet 49 improves.Like this, current pattern maker 601 generates the current pattern of the rising response that can improve electromagnet 49.
But, by electromagnet 49 available mold clamping forces, because the errors that the error of the gap delta between influence, electromagnet 49 and the adsorption section 51 that the magnetic hysteresis of electromagnet 49 causes and the distortion of resin cause etc. might not always can obtain identical size with respect to identical current value.Therefore, also not necessarily the target mold clamping force can be accessed, shown in Fig. 6 (B), between target mold clamping force and actual value, the mold clamping force error e may be produced even supplied with rated current.
Therefore, control part 60a is in order to prevent the generation of mold clamping force error e, not that the electric current based on current pattern is directly supplied in the coil 48, but by carrying out revising the supply electric current to coil 48 thus based on the control according to the correction order of the detected value of mold clamping force detector 55.
That is, adder 605 is calculated the mold clamping force error based on the mold clamping force command value with from the mold clamping force detected value that mold clamping force detector 55 is imported successively, and exports to integrator 603.Integrator 603 calculates the correction value of the electric current of electromagnet 49 being supplied with in order to eliminate the mold clamping force error thus by the mold clamping force error being carried out integration from beginning during matched moulds, and will represent that the revision directive of this correction value exports to adder 606.
By coil 48 being supplied with electric current electromagnet 49 is driven, adsorption section 51 is adsorbed by the absorption affinity of electromagnet 49.Thereupon, but mold clamping force is passed to moving platen 12, carry out matched moulds via adsorption plate 22 and bar 39.
In matched moulds, by control part 60a based on the control of current pattern with based on control according to the revision directive of the detected value of mold clamping force detector 55, control mold clamping force as follows.
Fig. 7 is the figure of control of mold clamping force that is used for illustrating the control part of first embodiment.In Fig. 7, give identical symbol for the part identical, and its explanation is suitably omitted with Fig. 6.
In Fig. 7 (A), curve L3 represents based on the correcting current instruction and from the transition of amplifier 604 reality to the current value (current value of correcting current instruction) of the electric current of coil 48 supplies.In addition, in Fig. 7 (B), curve L4 represents the electric current supply that will be represented by curve L3 result, the detected mold clamping force in the coil 48.
Shown in curve L3, the specified time limit (t1～t3), supply with maximum current of control part 60a the time from the beginning matched moulds.The result of the control that this ascending current that is based on current pattern L1 instructs.By supplying with maximum current between the longer-term of beginning during matched moulds, the rising response of electromagnet 49 improves thus, mold clamping force increase sharply (part of being represented by symbol a in curve L4).
In addition, in the first embodiment, the integrator 603 of control part 60a is from the integration of beginning matched moulds time beginning mold clamping force error.That is, in the first embodiment, during from the beginning matched moulds, beginning is based on the control of revision directive, and this revision directive is according to the detected value of the mold clamping force detector 55 of the mold clamping force that instructs based on ascending current.
Yet, shown in curve L3, control part 60a than during by current pattern L1 appointment (t1～t2) long during (t1～t3) supplies with maximum current.This be because, at t2 constantly, mold clamping force miss the mark mold clamping force, and by based on the control according to the revision directive of the detected value of mold clamping force detector 55, mold clamping force error by 603 pairs of respective amount of integrator is carried out integration, by from the revision directive of integrator 603 to revising based on the current-order of current pattern L1.Therefore, before the t3 that can obtain the target mold clamping force, supply with maximum current.
In the time obtaining the target mold clamping force, control part 60a will make the supply electric current be reduced to rated current according to the current-order of keeping of current pattern L1.But, since the response of electromagnet 49 not only when rising, its in the other direction (during decline) not good yet, so begin to reduce back (after the t3) supplying with electric current, also as among the curve L4 by shown in the symbol b like that, mold clamping force continues to increase.As a result, also carry out based on the control according to the revision directive of the detected value of mold clamping force detector 55 for the mold clamping force error that produces, 603 pairs of these mold clamping force errors of integrator are carried out integration, and the output revision directive.As a result, in adder 606, by revision directive to from current pattern maker 602 keep current-order correction, as among the curve L3 by shown in the symbol c like that, the electric current supply that the current value ratio rated current is low is in coil 48.Mold clamping force begins to descend than the fall delay ground of supplying with electric current, and near the target mold clamping force.
Then, for example shown in Fig. 6 (B), can not get by rated current under the situation of target mold clamping force, integrator 603 is exported revision directive by the mold clamping force error e is carried out integration.Keep current-order by this revision directive correction, thus as among the curve L3 by shown in the symbol d, will be in coil 48 than the big electric current supply of rated current.As a result, reach the target mold clamping force at t4 in the drawings, and become stable state.After becoming stable state, in matched moulds keeps, also will be input to successively in the adder 605,, adjust the electric current that coil 48 is supplied with by based on control according to the revision directive of the detected value of mold clamping force detector 55 by mold clamping force detector 55 detected mold clamping force detected values.As a result, carry out matched moulds with stable mold clamping force.
During this period, the resin of fusion is filled in the various cavity space of die device 19 from injection nozzle 18 injections in injection device 17.In addition, as above-mentioned detectors of load, can use the force cell that is provided on the bar 39, detect the sensor etc. of the elongation of connecting rod 14.
And, when the resin in the various cavity space is cooled and when solidifying, control part 60a under the state of Fig. 3, stops above-mentioned coil 48 is supplied with electric currents when die sinking.Thereupon, drive linear motor 28, but moving platen 12 is retreated, and as shown in Figure 4, moveable die 16 is placed retreat extreme position, carry out die sinking.
As mentioned above, according to the mold closing mechanism of the control part 60a with first embodiment, generate the current pattern of the characteristic of having considered electromagnet, and control for mold clamping force based on this current pattern by current pattern maker 602.Therefore, the rising response of mold clamping force can be improved, and the circulation that is shaped can be shortened.In addition, because by integrator 603, adder 605 and adder 606 etc., carry out based on control, so can suitably keep the target mold clamping force according to the revision directive of the detected value of mold clamping force detector 55 for mold clamping force.
Then, second embodiment is described.In the control part 60a of first embodiment, shown in Fig. 7 (B), the phenomenon (being the overshoot of mold clamping force) that mold clamping force has surpassed the target mold clamping force has taken place in during t3～t4.From the protection of mould and prevent the viewpoint of bad shaping, the overshoot of mold clamping force is not preferred.Therefore, in second embodiment, the example that has solved this problem is described.
Fig. 8 is the figure of configuration example of the control part of expression second embodiment.In Fig. 8, give same-sign for the part identical, and suitably omit its explanation with Fig. 5.In second embodiment, control part 60 is described as control part 60b.
Below, the control of the mold clamping force that possesses the integrator 606 that switches monitor 607 is described.Fig. 9 is the figure of control of mold clamping force that is used for illustrating the control part of second embodiment.In Fig. 9, give same-sign for the part identical, and suitably omit its explanation with Fig. 7.
In second embodiment, it is initial at the beginning matched moulds to switch monitor 607, by integrator 603 is exported to cease and desist order integrator 603 is stopped.Therefore, in the drawings, during t1～t5, do not carry out the integration of the mold clamping force error of integrator 603, do not carry out adder 606 based on correction from the current instruction value of the ascending current of current pattern maker 602 instruction.As a result, shown in Fig. 9 (A), during t1～t5 with the represented such electric current supply of current pattern L1 to coil 48.In addition, in Fig. 9 (A), during t1～t5, the track of curve L3 is consistent with current pattern L1, but considers the vision identification of the dotted line of expression current pattern L1, and does not put down in writing the solid line of expression curve L3.
Here, the action that begins to stop before stable integrator 603 at mold clamping force be because, carry out the integration of mold clamping force error during from the beginning matched moulds, be considered to one of reason of the mold clamping force overshoot in first embodiment.That is, this be because, in Fig. 7 (B), for the mold clamping force error of institute's integration during t1～t2 is revised, prolonged supply with maximum current during, t3 understood overshoot later on when the result reached the target mold clamping force at mold clamping force.Therefore, in second embodiment, behind the beginning matched moulds, (t1～t5), switch monitor 607 action of integrator 603 is stopped during mold clamping force is unsettled.
When mold clamping force begins to stablize based on keeping current-order (t5), switch the 603 output action orders of 607 pairs of integrators of monitor.In addition, switch 607 pairs of displacements in respect of time of monitor and monitor, detect the stable of mold clamping force thus from the mold clamping force detected value of mold clamping force detector 55 inputs.For example, if the displacement of mold clamping force detected value is in setting at the appointed time, then switching monitor 607, to be judged as mold clamping force stable.
Integrator 603 begins action (being the integration of mold clamping force error) according to action command.In the example of Fig. 9 (B), the mold clamping force detected value based on keeping current-order of t5 is lower than the target mold clamping force when the beginning integration.Therefore, adder 606 is exported in integrator 603 revision directive that will be used for revising this mold clamping force error.Adder 606 by the revision directive value to revising based on the current instruction value of keeping current-order from current pattern maker 602.As a result, shown in curve L3, the supply electric current becomes the value above rated current.Along with the increase of supplying with electric current, mold clamping force also increases, and in Fig. 9 (B), reaches the target mold clamping force at t6.In addition, in second embodiment, because in that mold clamping force begins to begin the integration of mold clamping force error after stable based on keeping current-order, so do not carry out rapid correction for current instruction value, and reduced the possibility of mold clamping force overshoot.Therefore, when reaching the target mold clamping force, directly become stable state at t6.After becoming stable state, in matched moulds keeps (should keep target mold clamping force during), switch monitor 607 and also make integrator 603 actions.Therefore, based on mold clamping force detected value,, adjust the electric current of supplying with to coil 48 by based on control according to the revision directive of the detected value of mold clamping force detector 55 from mold clamping force detector 55 input.As a result, carry out matched moulds with stable mold clamping force.
In addition, though omit in the drawings, but in the matched moulds operation from level controller imported mold clamping force instruction when (promptly representing the mold clamping force instruction of the mold clamping force lower) that is used for making mold clamping force to reduce than current mold clamping force, switch monitor 607 and cease and desist order, integrator 603 is stopped to integrator 603 outputs.Therefore, in this case,, will directly supply in the coil 48 according to the electric current of the current pattern that generates by current pattern maker 602 according to this mold clamping force instruction.As a result, mold clamping force begins to reduce, and is stabilized near the mold clamping force of mold clamping force instruction expression.Like this, do not carry out that mold clamping force sharply reduces during in the integration of mold clamping force error, prevent that thus mold clamping force from needing reduce abovely.
In addition, finish, when becoming 0, switch monitor 607 integrator 603 is stopped when the matched moulds operation from the mold clamping force of the matched moulds instruction expression of last level controller 601.Thus, even be 0,, can prevent that also mold clamping force from increasing by based on control according to the revision directive of the detected value of mold clamping force detector 55 from the current value of the current-order of current pattern maker 602 output.That is, this be because, under the state that keeps integrator 603 to move, can be because with the mold clamping force error intergal and from integrator 603 output revision directives, the electric current of the current value that this revision directive is represented is fed in the coil 48.Then, be because formed following circulation: because coil 48 is supplied with electric current, it is big that the mold clamping force error further becomes, from the bigger revision directive of integrator 603 output absolute values, and the electric current supply by this revision directive current value that absolute value is bigger is in coil 48 in order to revise this mold clamping force error.In addition because the size of power and current value is square in direct ratio, so even the current value of revision directive for negative, can be to the directive effect that makes the mold clamping force reduction yet.
As mentioned above, according to the control part 60b of second embodiment, by switch monitor 607 with mold clamping force unsettled during the control based on according to the revision directive of the detected value of mold clamping force detector 55 of (during rising, when descending etc.) stop.Therefore, can reduce the possibility of mold clamping force overshoot.As a result, compare the time that can further shorten arrival target mold clamping force, can shorten the circulation that is shaped with first embodiment.
In addition, in the present embodiment, preferably use the mold clamping force detector 55 of the load that detection applies mould as the mold clamping force test section, so represented to use the example of mold clamping force detector 55.But, as the mold clamping force test section, can also use the magnetic flux density detector of the magnetic flux density that detects electromagnet, also can use the distance detector of the gap delta between instrumentation rear pattern plate 13 and the adsorption plate 22 etc.
Yet the control method of the mold closing mechanism of present embodiment also can not be the mold closing mechanism that carries out the die opening and closing action by the driving of linear motor 28.Particularly under the situation of linear motor 28, owing to magnet is showed out at frame table, so may adhere to dust etc.Therefore, expression the application's variation in Figure 10 is not promptly used linear motor 28 as the die opening and closing drive division and is used the rotary-type motor that has been sealed the generation zone in magnetic field by the motor frame.
Same as the explanation of the electromagnet unit of the 2nd drive division and Fig. 1 and Fig. 2, so omit explanation., immovably be installed on the motor bracket 73 that is fixed in framework with motor 74 as the die opening and closing of the 1st drive division and drive division (die opening and closing drive division) that use as die opening and closing.Here, die opening and closing motor 74 uses the rotary-type motor that has been sealed the generation zone in magnetic field by the motor frame.Be extruded with not shown motor drive shaft from rotary-type motor, motor drive shaft and ballscrew shaft 72 link.Ballscrew shaft 72 screws togather with ball-screw nut 71, and constituting thus will be by the direction of motion converting means that rotatablely moves and be converted to translatory movement of rotary-type motor generation.And, but but ball-screw nut 71 non-rotatably be provided in from the outstanding moving platen flange part 12a in the bottom of moving platen 12.Thus, by the rotation of die opening and closing motor 74, but moving platen 12 can seesaw, carry out the die opening and closing action of moveable die 16.
And, in the rear end of die opening and closing motor 74 position detector 75 is installed, read in the anglec of rotation of die opening and closing motor 74, but can grasp the position of moving platen 12.Thus, die opening and closing handling part 61 control die opening and closing motors 74.
In this formation, producing by electromagnet in the process of the mold clamping force of die device 19, more specifically after beginning to boost, when becoming the position skew that mould can not take place, die opening and closing handling part 61 is controlled the electric current supply to die opening and closing motor 74 changeably.Particularly, the supply of electric current is stopped.Thus, die opening and closing motor 74 is disappeared by the influence to mold clamping force that Position Control causes.
More than, embodiments of the invention have been described in detail in detail, but the present invention is not limited to this specific embodiment, in the purport scope of the present invention that patent request scope is put down in writing, can carry out various distortion, change.
Japanese patent application 2007-221573 number priority based on proposition on August 28th, 2007 is advocated in the application of this world, quotes 2007-221573 number full content in the application of border home.
Claims (14)
1. mold closing mechanism by electromagnet effect mold clamping force, is characterized in that having:
The first current-order generating unit, generate corresponding to the target mold clamping force, to above-mentioned current of electromagnet instruction;
The mold clamping force test section detects the above-mentioned mold clamping force of above-mentioned electromagnet; And
The second current-order generating unit based on by the detected mold clamping force detected value of above-mentioned mold clamping force test section, generates the revision directive of revising above-mentioned current-order.
2. mold closing mechanism as claimed in claim 1 is characterized in that,
Has correcting current command calculations portion, this correcting current command calculations portion generates the above-mentioned revision directive that instruction department generates based on the above-mentioned current-order that is generated by the above-mentioned first current-order generating unit with by above-mentioned second electric current, calculates the correcting current instruction of supplying with to above-mentioned electromagnet.
3. mold closing mechanism as claimed in claim 1 is characterized in that,
The above-mentioned first current-order generating unit generates ascending current instruction with the above-mentioned mold clamping force of generation and the current-order of keeping current-order of keeping the mold clamping force that is produced.
4. mold closing mechanism as claimed in claim 3 is characterized in that,
The above-mentioned second current-order generating unit is according to keeping mold clamping force that current-order keeps and by the error between the detected mold clamping force detected value of above-mentioned mold clamping force test section, generate above-mentioned revision directive based on above-mentioned.
5. mold closing mechanism as claimed in claim 1 is characterized in that,
The above-mentioned first current-order generating unit generates expression than the current-order corresponding to the big current value of the electric current of above-mentioned target mold clamping force when the beginning matched moulds.
6. mold closing mechanism as claimed in claim 1 is characterized in that,
The above-mentioned second current-order generating unit, the error based between above-mentioned target mold clamping force and the above-mentioned mold clamping force detected value generates above-mentioned revision directive.
7. mold closing mechanism as claimed in claim 1 is characterized in that,
Have based on above-mentioned mold clamping force detected value and switch the action of the above-mentioned second electric current generating unit and the switching part that stops.
8. mold closing mechanism as claimed in claim 7 is characterized in that,
Above-mentioned switching part based on keeping under the situation that current-order controls in the current-order that is generated by the first current-order generating unit, switches the action of the above-mentioned second current-order generating unit and stops.
9. mold closing mechanism as claimed in claim 1 is characterized in that,
Above-mentioned switching part, should keep the target mold clamping force during, make the action of the above-mentioned second current-order generating unit.
10. mold closing mechanism as claimed in claim 1 is characterized in that,
Above-mentioned switching part during the regulation behind the beginning matched moulds, stops the above-mentioned second current-order portion.
11. mold closing mechanism as claimed in claim 1 is characterized in that,
Above-mentioned switching part during the regulation when the change from above-mentioned target mold clamping force begins, stops the above-mentioned second current-order portion.
12. mold closing mechanism as claimed in claim 1 is characterized in that,
Above-mentioned switching part is 0 o'clock at above-mentioned target mold clamping force, and the above-mentioned second current-order portion is stopped.
13. a clamping control method by electromagnet effect mold clamping force, is characterized in that,
Generation corresponding to the target mold clamping force, to the instruction of above-mentioned current of electromagnet;
Detect the above-mentioned mold clamping force of above-mentioned electromagnet; And
Based on above-mentioned mold clamping force detected value, generate the revision directive of revising above-mentioned current-order.
14. clamping control method as claimed in claim 13 is characterized in that,
Based on above-mentioned current-order and above-mentioned revision directive, calculate the correcting current instruction of supplying with to above-mentioned electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210297026.8A CN102773977B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-221573 | 2007-08-28 | ||
| JP2007221573 | 2007-08-28 | ||
| PCT/JP2008/065173 WO2009028488A1 (en) | 2007-08-28 | 2008-08-26 | Clamping device and clamping control method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210297026.8A Division CN102773977B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
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| Publication Number | Publication Date |
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| CN101784380A true CN101784380A (en) | 2010-07-21 |
| CN101784380B CN101784380B (en) | 2016-03-02 |
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| CN201210297026.8A Expired - Fee Related CN102773977B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
| CN200880104443.8A Expired - Fee Related CN101784380B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
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| CN201210297026.8A Expired - Fee Related CN102773977B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
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| JP (2) | JP5037619B2 (en) |
| CN (2) | CN102773977B (en) |
| DE (1) | DE112008002284T5 (en) |
| TW (1) | TWI405658B (en) |
| WO (1) | WO2009028488A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825751A (en) * | 2012-09-17 | 2012-12-19 | 深圳市华成工业控制有限公司 | Mould locking signal control system and control method of injection molding machine |
| CN114311570A (en) * | 2020-09-30 | 2022-04-12 | 住友重机械工业株式会社 | Injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5774441B2 (en) * | 2011-10-21 | 2015-09-09 | 住友重機械工業株式会社 | Injection molding machine and mold thickness adjusting method for injection molding machine |
| JP5774442B2 (en) * | 2011-10-21 | 2015-09-09 | 住友重機械工業株式会社 | Injection molding machine |
| JP5774443B2 (en) * | 2011-10-21 | 2015-09-09 | 住友重機械工業株式会社 | Injection molding machine |
| JP5778023B2 (en) * | 2011-12-26 | 2015-09-16 | 住友重機械工業株式会社 | Injection molding machine |
| JP6000891B2 (en) * | 2013-03-29 | 2016-10-05 | 住友重機械工業株式会社 | Injection molding machine |
| JP6289904B2 (en) * | 2013-12-27 | 2018-03-07 | 住友重機械工業株式会社 | Injection molding machine |
| JP6644473B2 (en) * | 2015-03-27 | 2020-02-12 | 住友重機械工業株式会社 | Injection molding machine |
| CN112895363B (en) * | 2021-01-18 | 2022-05-20 | 杭州电子科技大学 | Low-pressure mold protection self-adaptive control method and device of injection molding machine |
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| JPH0622832B2 (en) * | 1986-07-07 | 1994-03-30 | 三菱重工業株式会社 | Injection compression molding method and apparatus |
| JP2976366B2 (en) * | 1995-04-10 | 1999-11-10 | 住友重機械工業株式会社 | Control method of injection molding machine |
| JPH10119099A (en) * | 1996-10-16 | 1998-05-12 | Sumitomo Heavy Ind Ltd | Mold clamping force controller for toggle type motor operated injection molding machine |
| JPH10151650A (en) * | 1996-11-25 | 1998-06-09 | Sumitomo Heavy Ind Ltd | Control of mold clamping apparatus |
| JPH10244567A (en) | 1997-03-05 | 1998-09-14 | Sumitomo Heavy Ind Ltd | Mold clamping device |
| JP3235059B2 (en) * | 1998-12-22 | 2001-12-04 | 住友重機械工業株式会社 | Mold clamping controller |
| JP3524036B2 (en) * | 2000-04-21 | 2004-04-26 | 日精樹脂工業株式会社 | Foreign matter detection method of injection molding machine |
| JP4021815B2 (en) * | 2003-07-10 | 2007-12-12 | 住友重機械工業株式会社 | Clamping device |
| US20070158875A1 (en) * | 2004-03-19 | 2007-07-12 | Sumitomo Heavy Industries, Ltd. | Mold-clamping apparatus and method of adjusting mold thickness |
| EP1726427B1 (en) * | 2004-03-19 | 2013-05-15 | Sumitomo Heavy Industries, Ltd. | Mold clamping device and mold clamping method |
| JP4445411B2 (en) * | 2005-03-01 | 2010-04-07 | 日精樹脂工業株式会社 | Method for correcting mold clamping force of mold clamping device |
| JP2007221573A (en) | 2006-02-17 | 2007-08-30 | Kyocera Mita Corp | Facsimile machine |
-
2008
- 2008-08-26 DE DE112008002284T patent/DE112008002284T5/en not_active Withdrawn
- 2008-08-26 WO PCT/JP2008/065173 patent/WO2009028488A1/en active Application Filing
- 2008-08-26 JP JP2009530122A patent/JP5037619B2/en not_active Expired - Fee Related
- 2008-08-26 CN CN201210297026.8A patent/CN102773977B/en not_active Expired - Fee Related
- 2008-08-26 CN CN200880104443.8A patent/CN101784380B/en not_active Expired - Fee Related
- 2008-08-27 TW TW97132677A patent/TWI405658B/en not_active IP Right Cessation
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825751A (en) * | 2012-09-17 | 2012-12-19 | 深圳市华成工业控制有限公司 | Mould locking signal control system and control method of injection molding machine |
| CN102825751B (en) * | 2012-09-17 | 2014-10-29 | 深圳市华成工业控制有限公司 | Mould locking signal control device and control method of injection molding machine |
| CN114311570A (en) * | 2020-09-30 | 2022-04-12 | 住友重机械工业株式会社 | Injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5437443B2 (en) | 2014-03-12 |
| JP5037619B2 (en) | 2012-10-03 |
| CN102773977B (en) | 2015-09-09 |
| CN102773977A (en) | 2012-11-14 |
| TW200932492A (en) | 2009-08-01 |
| JP2012162093A (en) | 2012-08-30 |
| CN101784380B (en) | 2016-03-02 |
| WO2009028488A1 (en) | 2009-03-05 |
| DE112008002284T5 (en) | 2010-07-22 |
| JPWO2009028488A1 (en) | 2010-12-02 |
| TWI405658B (en) | 2013-08-21 |
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