CN101784380B - Mold closing mechanism and clamping control method - Google Patents
Mold closing mechanism and clamping control method Download PDFInfo
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- CN101784380B CN101784380B CN200880104443.8A CN200880104443A CN101784380B CN 101784380 B CN101784380 B CN 101784380B CN 200880104443 A CN200880104443 A CN 200880104443A CN 101784380 B CN101784380 B CN 101784380B
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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
-
- 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
-
- 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 kind of mold closing mechanism and clamping control method.This mold closing mechanism is, by electromagnet effect mold clamping force, it is characterized in that having: the first current-order generating unit, generate correspond to target mold clamping force, to the current-order of above-mentioned electromagnet; Mold clamping force test section, detects the above-mentioned mold clamping force of above-mentioned electromagnet; Second current-order generating unit, based on the mold clamping force detected value detected by above-mentioned mold clamping force test section, generates the revision directive revising above-mentioned current-order.By more than, provide a kind of and can suitably control to use electromagnet and the mold closing mechanism of mold clamping force that acts on.
Description
Technical field
The present invention relates to mold closing mechanism and clamping control method.
Background technology
In the past, in injection machine, resin is filled into the cavity space between fixed mould and moveable die from the injection nozzle injection of injection device, and makes it solidify, obtain formed products thus.Further, carrying out mold closing, matched moulds and die sinking to make moveable die move relative to above-mentioned fixed mould, being equipped with mold closing mechanism.
In this mold closing mechanism, the mold closing mechanism that there is the fluid pressure type by driving for oil supply hydraulic cylinder and the DYN dynamic mold closing mechanism driven by motor, but the controlling of this DYN dynamic mold closing mechanism is higher, can not pollute periphery and energy efficiency is higher, so more used.In this case, by drive motor, ball-screw rotated and produce thrust, and by elbow type mechanism, this thrust being amplified, producing larger mold clamping force.
But in the DYN dynamic mold closing mechanism of above-mentioned formation, owing to using elbow type mechanism, so in the characteristic of this elbow type mechanism, be difficult to change mold clamping force, response and less stable, can not control mold clamping force in formation.Therefore, the mold closing mechanism that the thrust produced by ball-screw directly can be used as mold clamping force is provided.In this case, due to the torque of motor and mold clamping force in direct ratio, so mold clamping force can be controlled in formation.
But, in above-mentioned existing mold closing mechanism, not only the load resistance of ball-screw lower, larger mold clamping force can not be produced, and mold clamping force can change due to the torque ripple occurred in the motor.In addition, in order to produce mold clamping force, supply electric current when needing normal to motor, power consumption and the heating quantitative change of motor are many, so need to become large with making the specified output respective amount of motor, the cost of mold closing mechanism uprises.
Therefore, the mold closing mechanism (such as patent document 1) using linear motor in die opening and closing action, utilize the absorption affinity of electromagnet in mould assembling action is considered.In this mold closing mechanism, in order to remain necessarily by the mold clamping force in matched moulds operation, FEEDBACK CONTROL is carried out to mold clamping force.In the past, carried out the control part of this FEEDBACK CONTROL, such as, formed like that below.
Fig. 1 is the figure of the configuration example representing existing control part.In FIG, 100 represent mold closing mechanism.160 represent the control part 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, never illustrated host controller input represents the instruction of the size of mold clamping force instruction (mold clamping force (target mold clamping force) as target), and inputs mold clamping force detected value from the mold clamping force detector 155 of mold closing mechanism 100.Adder 161 calculates the error (mold clamping force error) relative to target mold clamping force based on mold clamping force command value and mold clamping force detected value, and exports to integrator 162.Integrator 162, by carrying out integration to mold clamping force error, calculates the current value revising mold clamping force error, and will represent that the current-order of this current value exports to amplifier 163.Amplifier 163 by the electric current supply of the current value represented by current-order to electromagnet 49.After, mold clamping force detected value is input to adder 161 successively, carries out FEEDBACK CONTROL.
Patent document 1: Japanese Unexamined Patent Publication 10-244567 publication
But, by means of only carrying out general FEEDBACK CONTROL, in view of the characteristic of electromagnet, be difficult to mold clamping force to control as preferred state.
Fig. 2 is used to the figure that the mold clamping force obtained by existing FEEDBACK CONTROL is described.In fig. 2, the process of horizontal axis representing time, the longitudinal axis represents mold clamping force detected value.Curve L0 is the curve representing the mold clamping force obtained by above-mentioned FEEDBACK CONTROL through coming in respect of time.
After beginning matched moulds, the slope of curve L0 is very mild.This results from rising response bad of electromagnet.That is, its reason is, even if electromagnet has been supplied to the electric current of certain current value, when the distance between gap is larger, electromagnetic force is also less, so can not the momentary action power corresponding with its current value.Therefore, mold clamping force detected value needs the time to a certain degree till arriving target mold clamping force.
Like this, in simple FEEDBACK CONTROL, there is the problem that promptly can not obtain target mold clamping force.When the time till target mold clamping force that arrives is elongated, also respective amount ground is elongated for forming cycle, and productivity ratio declines.
Summary of the invention
The present invention carries out in view of the above problems, its object is to provide a kind of and can suitably control to use electromagnet and the mold closing mechanism of mold clamping force that acts on and clamping control method.
Therefore, in order to solve the problem, the present invention is a kind of mold closing mechanism, acts on mold clamping force by electromagnet, it is characterized in that, has: the first current-order generating unit, generates the current-order to above-mentioned electromagnet corresponding to target mold clamping force; 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 the mold clamping force detected value detected by above-mentioned mold clamping force test section, generate the revision directive revising above-mentioned current-order.
In addition, the invention is characterized in, there is correcting current command calculations portion, this correcting current command calculations portion, based on the above-mentioned current-order generated by above-mentioned first current-order generating unit and the above-mentioned revision directive being generated instruction department generation by above-mentioned second electric current, calculates the correcting current instruction supplied to above-mentioned electromagnet.
In addition, the invention is characterized in, above-mentioned first current-order generating unit, generate the current-order of the ascending current instruction having and produce above-mentioned mold clamping force and the maintenance current-order maintaining the mold clamping force produced.
In addition, the invention is characterized in that above-mentioned second current-order generating unit, according to the error between the mold clamping force maintained based on above-mentioned maintenance current-order and the mold clamping force detected value detected by above-mentioned mold clamping force test section, generates above-mentioned revision directive.
In addition, the invention is characterized in, above-mentioned first current-order generating unit, generating the current-order of the current value representing larger than the electric current corresponding to above-mentioned target mold clamping force when starting matched moulds.
In addition, the invention is characterized in, above-mentioned second current-order generating unit, based on the error between above-mentioned target mold clamping force and above-mentioned mold clamping force detected value, generates above-mentioned revision directive.
In addition, the invention is characterized in have and switch the above-mentioned action of the second electric current generating unit and the switching part of stopping based on above-mentioned mold clamping force detected value.
In addition, the invention is characterized in, above-mentioned switching part, when controlling based on the maintenance current-order in the current-order generated by the first current-order generating unit, switching action and the stopping of above-mentioned second current-order generating unit.
In addition, the invention is characterized in, above-mentioned switching part, during should maintaining target mold clamping force, make above-mentioned second current-order generating unit action.
In addition, the invention is characterized in, above-mentioned switching part, from during regulation after matched moulds, above-mentioned second current-order portion is stopped.
In addition, the invention is characterized in, above-mentioned switching part, during the regulation starting from the change of above-mentioned target mold clamping force, above-mentioned second current-order portion is stopped.
In addition, the invention is characterized in, above-mentioned switching part, when above-mentioned target mold clamping force is 0, above-mentioned second current-order portion is stopped.
The effect of invention:
According to the present invention, can provide a kind of and can suitably control to use electromagnet and the mold closing mechanism of mold clamping force that acts on and clamping control method.
Accompanying drawing explanation
Fig. 1 is the figure of the configuration example representing existing control part.
Fig. 2 is used to the figure that the mold clamping force obtained by existing FEEDBACK CONTROL is described.
The figure of state when Fig. 3 is die device and the mold closing mechanism mold closing representing embodiment of the present invention.
The figure of state when Fig. 4 is die device and the mold closing mechanism die sinking representing embodiment of the present invention.
Fig. 5 is the figure of the configuration example of the control part representing the first embodiment.
Fig. 6 is used to the figure that the current pattern generated by current pattern maker is described.
Fig. 7 is used to the figure based on the control of the mold clamping force of the control part of the first embodiment is described.
Fig. 8 is the figure of the configuration example of the control part representing the second embodiment.
Fig. 9 is used to the figure based on the control of the mold clamping force of the control part of the second embodiment is described.
Figure 10 represents the figure employing the variation of the present invention being enclosed the rotary-type motor in the generation region in magnetic field by motor frame.
The explanation of symbol:
10 mold closing mechanisms
11 fixed forms
12 movable templates
12a But moving die plate flange portion
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 coil disposed 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
601 host controllers
602 current pattern makers
603 integrators
604 amplifiers
605,606 adders
607 switch monitor
Br1 parts of bearings
Gd guide rail
Fr framework
N1, n2 nut
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.In addition, in the present embodiment, for mold closing mechanism, the moving direction of movable template when carrying out mold closing is set to front, the moving direction of movable template when carrying out die sinking is set to rear, for injection device, the moving direction of screw rod when injecting is set to front, the moving direction of screw rod when measuring is set to rear, and is described.
The figure of state when Fig. 3 is die device and the mold closing mechanism mold closing representing embodiment of the present invention.The figure of state when Fig. 4 is die device and the mold closing mechanism die sinking representing embodiment of the present invention.
In the drawings, 10 is mold closing mechanisms; To be the framework Gd of injection machine be Fr is laid on this framework Fr and forms track, support mold closing mechanism 10 and two guide rails as the 1st guide member guided (only representing 1 in two guide rail Gd in the drawings); 11 is that placing is fixed, as the fixed form of the 1st fixed part on this guide rail Gd, relative to said frame Fr and guide rail Gd; Separate predetermined distance with this fixed form 11 and be relatively equipped with the rear pattern plate 13 as the 2nd fixed part with fixed form 11; 4 connecting rods 14 (only representing two in 4 connecting rods 14 in the drawings) as connecting member are set up between above-mentioned fixed form 11 and rear pattern plate 13.In addition, the placing of above-mentioned rear pattern plate 13 on above-mentioned guide rail Gd so that can be flexible and move a little relative to guide rail Gd along with connecting rod 14.
In addition, in the present embodiment, fixed form 11 is fixed relative to framework Fr and guide rail Gd, and rear pattern plate 13 can move a little relative to guide rail Gd, but rear pattern plate 13 also can be made to fix relative to framework Fr and guide rail Gd, fixed form 11 can be moved a little relative to guide rail Gd.
Along above-mentioned connecting rod 14 with fixed form 11 relatively, to be movably equipped with movable template 12 as the 1st movable member along die opening and closing direction.For this reason, on the position corresponding with connecting rod 14 of above-mentioned movable template 12, be formed with the not shown guide hole for making connecting rod 14 through.
Be formed with the 1st not shown threaded portion in the leading section of above-mentioned connecting rod 14, above-mentioned connecting rod 14 screws togather by making above-mentioned 1st threaded portion and nut n1 and is fixed on fixed form 11.In addition, at the established part at above-mentioned each connecting rod 14 rear, give prominence to from the rear end face of rear pattern plate 13 towards rear and be integrally formed with the external diameter guide pillar 21 as 2nd guide member less than connecting rod 14 with connecting rod 14.Further, be formed with the 2nd not shown threaded portion near the rear end face of rear pattern plate 13, above-mentioned fixed form 11 and rear pattern plate 13 screw togather by making above-mentioned 2nd threaded portion and nut n2 and link.In the present embodiment, guide pillar 21 and connecting rod 14 form, but also guide pillar 21 and connecting rod 14 split can be formed.
In addition, be fixed with as the fixed mould 15 of the 1st mould respectively on above-mentioned fixed form 11, in above-mentioned movable template 12, be fixed with moveable die 16 as the 2nd mould, along with the advance and retreat of above-mentioned movable template 12, fixed mould 15 and moveable die 16 are separate, carries out mold closing, matched moulds and die sinking.In addition, along with carrying out matched moulds, form multiple not shown cavity space between fixed mould 15 and moveable die 16, the not shown resin as moulding material injected from the injection nozzle 18 of injection device 17 is filled into above-mentioned each cavity space.In addition, die device 19 is formed by fixed mould 15 and moveable die 16.
Further, the adsorption plate 22 as the 2nd movable member arranged abreast with above-mentioned movable template 12, movably arranges along above-mentioned each guide pillar 21 at the rear of rear pattern plate 13, and is guided by guide pillar 21.In addition, on above-mentioned adsorption plate 22, on the position corresponding with each guide pillar 21, be formed with the guide hole 23 for making guide pillar 21 through.This guide hole 23 possesses: large-diameter portion 24, in front end face upper shed, and collecting ball nut n2; With minor diameter part 25, in the rear end face upper shed of adsorption plate 22, possesses the sliding surface slided relative to guide pillar 21.In the present embodiment, adsorption plate 22 is guided by guide pillar 21, but adsorption plate 22 can not only by guide pillar 21, can also be guided by guide rail Gd.
But, in order to make above-mentioned movable template 12 retreat, be equipped between movable template 12 and framework Fr as the 1st drive division and as the linear motor 28 of the drive division of die opening and closing.Above-mentioned linear motor 28 possesses as the stator 29 of the 1st driving factor and the movable piece 31 as the 2nd driving factor, said stator 29 is parallel with above-mentioned guide rail Gd and be formed on said frame Fr with corresponding to the moving range of movable template 12, and above-mentioned movable piece 31 is relative with said stator 29 and be formed in the lower end of movable template 12 throughout prescribed limit.
Above-mentioned movable piece 31 possesses iron core 34 and coil 35.Further, above-mentioned iron core 34 possesses towards stator 29 multiple magnetic pole tooths 33 that are outstanding, that formed with prescribed distance, and above-mentioned coil 35 is wrapped on each magnetic pole tooth 33.In addition, above-mentioned magnetic pole tooth 33 at the moving direction relative to movable template 12 be right angle direction on formed in parallel to each other.In addition, said stator 29 possesses not shown iron core and extends to form the not shown permanent magnet on this iron core.This permanent magnet is by alternately and make each magnetic pole of N pole and S pole magnetic with the spacing identical with above-mentioned magnetic pole tooth 33 to be formed.
Therefore, when driving linear motor 28 when the electric current by supplying regulation to above-mentioned coil 35, movable piece 31 is retreated, and movable template 12 is retreated thereupon, and can carry out mold closing and die sinking.
In addition, in the present embodiment, stator 29 arranges permanent magnet, on movable piece 31, arranges coil 35, but also can arrange coil on stator, on movable piece, arrange permanent magnet.In the case, coil does not move along with driving linear motor 28, so can easily carry out for the wiring to coil supply electric power.
But, when before above-mentioned movable template 12 and then when moveable die 16 abuts with fixed mould 15, carry out mold closing, then carry out matched moulds.Further, in order to carry out matched moulds, between rear pattern plate 13 and adsorption plate 22, be equipped as the 2nd drive division and as the electromagnet unit 37 of the drive division of matched moulds.Further, the bar 39 as mold clamping force transferring element is movably equipped with, the through rear pattern plate of this bar 39 13 and adsorption plate 22 and extend and movable template 12 linked with adsorption plate 22.This bar 39 when mold closing and die sinking time and the advance and retreat of movable template 12 link and adsorption plate 22 retreated, when matched moulds, the mold clamping force produced by electromagnet unit 37 is passed to movable template 12.
In addition, mold closing mechanism 10 is formed by fixed form 11, movable template 12, rear pattern plate 13, adsorption plate 22, linear motor 28, electromagnet unit 37, bar 39 etc.
In addition, in mold closing mechanism 10, the action of the action as the linear motor 28 of die opening and closing drive division and the electromagnet unit 37 as matched moulds drive division is controlled by control part 60.Details for control part 60 describes later.
Above-mentioned electromagnet unit 37 is included in the electromagnet 49 as the 1st driver part that rear pattern plate 13 side is formed and the adsorption section 51 as the 2nd driver part formed in adsorption plate 22 side, this adsorption section 51 is formed in the established part of above-mentioned adsorption section 22 front end face, is formed in the present embodiment on adsorption plate 22 and surrounds above-mentioned bar 39 and the part relative with electromagnet 49.In addition, rear pattern plate 13 rear end face established part, in the present embodiment above-mentioned bar 39 a little above and below, be formed with two grooves 45 as coil disposed portion with rectangular cross sectional shape in parallel to each other, between each groove 45, form the coil 46 with rectangular shape, form yoke 47 in other parts.Further, package coil 48 on above-mentioned iron core 46.
In addition, above-mentioned iron core 46 and yoke 47 are consisted of the Construction integration of foundry goods, but also by being formed stacked for the thin plate formed by ferromagnetic, and can form electromagnetism stacked steel plate.
In the present embodiment, form differently electromagnet 49 with rear pattern plate 13, form differently adsorption section 51 with adsorption plate 22, but also electromagnet can be formed as a part for rear pattern plate 13, adsorption section be formed as a part for adsorption plate 22.
Therefore, in electromagnet unit 37, when supplying electric current (DC current) to above-mentioned coil 48, electromagnet 49 is driven, and adsorbs adsorption section 51, can produce above-mentioned mold clamping force.
Further, above-mentioned bar 39 is disposed of, and links, links in leading section and movable template 12 in rearward end and adsorption plate 22.Therefore, bar 39 along with before movable template 12 and then advance when mold closing, and makes adsorption plate 22 advance, retreats, and adsorption plate 22 is retreated when die sinking along with the retrogressing of movable template 12.
For this reason, the middle body of above-mentioned rear pattern plate 13 is formed the hole 41 being used for making bar 39 through, the middle body of above-mentioned adsorption plate 22 is formed and is used for the hole 42 that makes bar 39 through, towards above described holes 41 leading section opening and arrange the parts of bearings Br1 of the sleeve of steady arm 39 sliding freely etc.In addition, be formed with screw thread 43 in the rearward end of above-mentioned bar 39, make this screw thread 43 and screwed togather by the nut 44 as the thick guiding mechanism of mould rotatably supported relative to adsorption plate 22.
The outer peripheral face of above-mentioned nut 44 is formed with not shown large diameter gear, above-mentioned adsorption plate 22 is equipped the thick adjustment motor of not shown mould as the drive division of the thick adjustment of mould, makes the gear of the minor diameter be arranged on the output shaft of this mould thick adjustment motor and the gears meshing be formed on the outer peripheral face of above-mentioned nut 44.
And, when correspond to die device 19 thickness and drive mould thick adjustment motor, make above-mentioned nut 44 rotate ormal weight relative to screw thread 43 time, bar 39 is adjusted relative to the position of adsorption plate 22, and adsorption plate 22 is adjusted relative to the position of fixed form 11 and movable template 12, the value that gap delta becomes suitable can be made.That is, by changing movable template 12 and the relative position of adsorption plate 22, the thick adjustment of mould is carried out thus.
In addition, in the present embodiment, the entirety of iron core 46, yoke 47 and adsorption plate 22 is made up of electromagnetism stacked steel plate, but also can by around the iron core 46 that electromagnetism stacked steel plate forms rear pattern plate 13 and adsorption section 51.In the present embodiment, the rear end face of rear pattern plate 13 forms electromagnet 49, and relatively, on the front end face of adsorption plate 22 movably arrange adsorption section 51 with this electromagnet 49, but also can arrange adsorption section on the rear end face of rear pattern plate 13, and relatively, on the front end face of adsorption plate 22 movably arrange electromagnet with this adsorption section.
Then, the details of control part 60 is described.Fig. 5 is the figure of the configuration example of the control part representing the first embodiment.In the first embodiment, control part 60 is described as control part 60a.Control part 60a is made up of host controller 601, current pattern maker 602, integrator 603, amplifier 604, adder 605 and 606 etc.
Host controller 601 possesses CPU and memory etc., by CPU process record control program in memory, and the action of control linear motor 28 and electromagnet 49 thus.Host controller 601 exports the instruction (mold clamping force instruction) that represents mold clamping force size and expression linear motor 28 should the instruction (position command) of position of movement.In addition, in the present embodiment, conveniently the detailed description relevant with the control of linear motor 28 is omitted.Therefore, the inscape of the control for carrying out linear motor 28 is eliminated in the drawings.
Mold clamping force instruction from host controller 601 is imported in current pattern maker 602.Current pattern maker 602 is such as made up of servo card, generates the current pattern corresponding with the mold clamping force represented by mold clamping force instruction.Here, so-called current pattern, refers to the information represented the seasonal effect in time series current value that electromagnet 49 (coil 48) supplies.Current pattern maker 602, according to generated current pattern, will represent the signal (current-order) of the current value supplied to electromagnet 49, process in respect of time and export to adder 606 successively.
Matched moulds instruction from host controller 601 is also imported in adder 605.Also adder 605 is inputted to the mold clamping force detected value (actual value) detected by the mold clamping force detector 55 being arranged at mold closing mechanism 10.Adder 605, based on the value (mold clamping force command value) of the mold clamping force represented by mold clamping force instruction and mold clamping force detected value, calculates the error (mold clamping force error) of actual value relative to mold clamping force instruction.The mold clamping force error calculated is imported in integrator 603.In addition, mold clamping force detector 55 also can by detect connecting rod 14 elongation sensor or be disposed in the detectors of load such as force cell on bar 39 or the sensor of magnetic flux that detects between electromagnet 49 and adsorption section 51 is formed.
Integrator 603, in order to eliminate mold clamping force error, and by carrying out integration to calculate the correction value for current-order to mold clamping force error, and will represent that the signal (revision directive) of this correction value exports to adder 606 successively.
As the adder 606 of correcting current instruction department, by the current value (revision directive value) represented by the revision directive that inputs from integrator 603, current value (current instruction value) represented in the current-order inputted from current pattern maker 602 is revised, and will represent that the signal (correcting current instruction) of revised current value exports to amplifier 604 successively.
Amplifier 604 is such as made up of driver card, by the electric current supply corresponding with the correcting current instruction inputted from adder 606 in electromagnet 49.Corresponding to the supply of this electric current, electromagnet 49 drives.
In addition, in the present embodiment, form the first current-order generating unit 610 by current pattern maker 602, form the second current-order generating unit 620 by adder 605 and integrator 603.
Then, the action of the mold closing mechanism 10 of above-mentioned formation is described.
Control part 60 carries out die opening and closing process, when mold closing, under the state of fig. 4, supply electric current to coil 35.Then, linear motor 28 is driven, and movable template 12 is advanced, and as shown in Figure 3, moveable die 16 is abutted with fixed mould 15.Now, between rear pattern plate 13 and adsorption plate 22, namely between electromagnet 49 and adsorption section 51, be formed with best gap delta.In addition, the power required for mold closing is compared with mold clamping force, very little.
When movable template 12 arrives position (position that moveable die 16 abuts with fixed mould 15 or the position before abutting a little) of regulation, beginning matched moulds operation.That is, host controller 61 is by representing the mold clamping force instruction of the desired value (target mold clamping force) of the mold clamping force preset, and exports to current pattern maker 602 and adder 605.Current pattern maker 602 generates and corresponds to the current pattern of mold clamping force instruction, according to this current pattern and time through output current instruction accordingly.Here, the mode improved with the rising response of the mold clamping force based on electromagnet 49 generates current pattern.
Fig. 6 is used to the figure that the current pattern generated by current pattern maker is described.In Fig. 6 (A), current pattern L1 is represented by the broken line of dotted line.The longitudinal axis of Fig. 6 (A) represents current value, the process of horizontal axis representing time.On the other hand, in Fig. 6 (B), the transition of the mold clamping force obtained when the current value corresponding with current pattern is supplied directly onto in coil 48 are represented by curve L2.The longitudinal axis of Fig. 6 (B) represents mold clamping force, the process of horizontal axis representing time.In addition, the transverse axis of (A) is consistent with the process of the time of the transverse axis of (B).
As shown in the figure, current pattern L1, comprise in the specified time limit (t1 ~ t2) from beginning matched moulds the ascending current instruction producing mold clamping force, (after t2) comprises the maintenance current-order maintaining mold clamping force afterwards.In ascending current instruction, exceed the electric current of the electric current (rated current) of the current value corresponding to target mold clamping force, such as maximum current (electric current of the maximum current value that control part 60a can suitably supply) by as current instruction value.In maintenance current-order, rated current is by as current instruction value.If based on this current pattern, then will exceed the electric current supply of rated current significantly in coil 48 during t1 ~ t2.As a result, the inclination of the part (during t1 ~ t2) represented by symbol a in the curve L2 of Fig. 6 (B) becomes large.That is, the rising response of electromagnet 49 improves.Like this, current pattern maker 601 generates the current pattern that can improve the rising response of electromagnet 49.
But, by the available mold clamping force of electromagnet 49, the error etc. that the impact caused due to the magnetic hysteresis of electromagnet 49, the error of gap delta between electromagnet 49 and adsorption section 51 and the distortion of resin cause, always might not can obtain identical size relative to identical current value.Therefore, even if also not necessarily target mold clamping force can be obtained for giving rated current, as shown in Fig. 6 (B), mold clamping force error e may be produced between target mold clamping force and actual value.
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 coil 48, but by carrying out the control of the correction order based on the detected value according to mold clamping force detector 55, revise the supply electric current to coil 48 thus.
That is, adder 605 calculates mold clamping force error based on mold clamping force command value with from the mold clamping force detected value that mold clamping force detector 55 inputs successively, and exports to integrator 603.Integrator 603 by from matched moulds time integration is carried out to mold clamping force error, calculate the correction value of electric current electromagnet 49 supplied in order to eliminate mold clamping force error thus, and will represent that adder 606 is exported in the revision directive of this correction value.
Adder 606 is by the current value represented by the revision directive from integrator 603 input, the current value represented in the current-order inputted from current pattern maker 602 is revised, and will represent that the signal (correcting current instruction) of revised current value exports to amplifier 604.Amplifier 604 by the electric current supply corresponding with the correcting current instruction inputted from adder 606 in the coil 48 of electromagnet 49.
By supplying electric current to coil 48, electromagnet 49 is driven, adsorption section 51 is adsorbed by the absorption affinity of electromagnet 49.Thereupon, via adsorption plate 22 and bar 39, mold clamping force is passed to movable template 12, carry out matched moulds.
In matched moulds, by the control of the control based on current pattern of control part 60a and the revision directive based on the detected value according to mold clamping force detector 55, control mold clamping force as follows.
Fig. 7 is used to the figure of the control of the mold clamping force of the control part of explanation first embodiment.In the figure 7, give identical symbol for the part identical with Fig. 6, and suitably omission is described.
In Fig. 7 (A), curve L3 represents based on correcting current instruction from the transition of amplifier 604 reality to the current value (current value of correcting current instruction) of the electric current that coil 48 supplies.In addition, in Fig. 7 (B), curve L4 represents the electric current supply that represented by curve L3 to the result in coil 48, detected mold clamping force.
As shown in curve L3, control part 60a, in the specified time limit (t1 ~ t3) from beginning matched moulds, supplies maximum current.This is the result of the control of ascending current instruction based on current pattern L1.By supplying maximum current between the longer-term from beginning matched moulds, the rising response of electromagnet 49 improves thus, and mold clamping force increases sharply (part represented by symbol a in curve L4).
In addition, in the first embodiment, the integrator 603 of control part 60a starts the integration of mold clamping force error from beginning matched moulds.That is, in the first embodiment, from beginning matched moulds, start the control based on revision directive, this revision directive is according to the detected value of the mold clamping force detector 55 of the mold clamping force based on ascending current instruction.
But as shown in curve L3, control part 60a (t1 ~ t3) during longer than (t1 ~ t2) during being specified by current pattern L1 supplies maximum current.This is because, in the t2 moment, mold clamping force miss the mark mold clamping force, and by the control based on the revision directive of the detected value according to mold clamping force detector 55, carry out integration by the mold clamping force error of integrator 603 pairs of respective amount, by the revision directive from integrator 603, the current-order based on current pattern L1 is revised.Therefore, before the t3 that can obtain target mold clamping force, maximum current is supplied.
When obtaining target mold clamping force, control part 60a will make supply electric current be reduced to rated current according to the maintenance current-order of current pattern L1.But, due to electromagnet 49 response not only when rising, its in the other direction (during decline) not good yet, so supply electric current start reduce after (after t3), also as in curve L4 by as shown in symbol b, mold clamping force continue increase.As a result, the mold clamping force error produced also is carried out to the control of the revision directive based on the detected value according to mold clamping force detector 55, integrator 603 carries out integration to this mold clamping force error, and exports revision directive.As a result, in adder 606, by revision directive, the maintenance current-order from current pattern maker 602 is revised, as in curve L3 by as shown in symbol c, by electric current supply low for current value ratio rated current in coil 48.Mold clamping force starts to decline than the fall delay ground of supply electric current, and close to target mold clamping force.
Then, such as, shown in Fig. 6 (B), when be can not get target mold clamping force by rated current, integrator 603 exports revision directive by carrying out integration to mold clamping force error e.Revise maintenance current-order by this revision directive, thus as in curve L3 by shown in symbol d, by the electric current supply larger than rated current in coil 48.As a result, reach target mold clamping force at t4 in the drawings, and become stable state.After becoming stable state, in matched moulds keeps, also the mold clamping force detected value detected by mold clamping force detector 55 is input in adder 605 successively, by the control of the revision directive based on the detected value according to mold clamping force detector 55, adjusts the electric current that coil 48 is supplied.As a result, matched moulds is carried out with stable mold clamping force.
During this period, the resin of melting in injection device 17 is injected from injection nozzle 18, is filled in each cavity space of die device 19.In addition, as above-mentioned detectors of load, the force cell be disposed on bar 39 can be used, detect the sensor of the elongation of connecting rod 14.
Further, when the resin in each cavity space is cooled and solidifies, control part 60a, when die sinking, under the state of Fig. 3, stops supplying electric current to above-mentioned coil 48.Thereupon, drive linear motor 28, movable template 12 is retreated, and as shown in Figure 4, moveable die 16 is placed in retrogressing extreme position, carry out die sinking.
As mentioned above, according to the mold closing mechanism of control part 60a with the first embodiment, generated the current pattern considering the characteristic of electromagnet by current pattern maker 602, and based on this current pattern, mold clamping force is controlled.Therefore, it is possible to improve the rising response of mold clamping force, and forming cycle can be shortened.In addition, due to by integrator 603, adder 605 and adder 606 etc., mold clamping force is carried out to the control of the revision directive based on the detected value according to mold clamping force detector 55, so can suitably maintain target mold clamping force.
Then, the second embodiment is described.In the control part 60a of the first embodiment, as shown in Fig. 7 (B), during t3 ~ t4, there occurs the phenomenon (i.e. the overshoot of mold clamping force) that mold clamping force has exceeded target mold clamping force.From the protection of mould and the viewpoint preventing bad shaping, the overshoot of mold clamping force is not preferred.Therefore, in this second embodiment, the example solving this problem is described.
Fig. 8 is the figure of the configuration example of the control part representing the second embodiment.In fig. 8, give same-sign for the part identical with Fig. 5, and suitably the description thereof will be omitted.In this second embodiment, control part 60 is described as control part 60b.
Control part 60b, except the inscape of control part 60a, also will switch monitor 607 as inscape.The ON/OFF switching monitor 607 pairs of integrators 603 switches.That is, switch monitor 607 based on the mold clamping force command value inputted from host controller 601 and the mold clamping force detected value inputted from mold clamping force detector 55, make integrator 603 at suitable timed activity, stop in suitable timing.Integrator 603 action, means the control action of the revision directive based on the detected value according to mold clamping force detector 55.In addition, integrator 603 stops, and means that the control based on the revision directive of the detected value according to mold clamping force detector 55 stops.
Below, the control of the mold clamping force possessing the integrator 606 switching monitor 607 is described.Fig. 9 is used to the figure of the control of the mold clamping force of the control part of explanation second embodiment.In fig .9, give same-sign for the part identical with Fig. 7, and suitably the description thereof will be omitted.
In this second embodiment, switching monitor 607 initial at beginning matched moulds, by ceasing and desisting order to integrator 603 output, integrator 603 being 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 the correction of the current instruction value based on the ascending current instruction from current pattern maker 602 of adder 606.As a result, as shown in Fig. 9 (A), during t1 ~ t5 by electric current supply such represented by 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 visual recognition degree of the dotted line representing current pattern L1, and does not record the solid line representing curve L3.
Here, before mold clamping force starts to stablize, stop the action of integrator 603 to be because carry out the integration of mold clamping force error from beginning matched moulds, be considered to one of reason of the mold clamping force overshoot in the first embodiment.That is, this is because, in Fig. 7 (B), in order to revise the mold clamping force error of institute's integration during t1 ~ t2, during extending supply maximum current, result can overshoot after t3 when mold clamping force reaches target mold clamping force.Therefore, in this second embodiment, after beginning matched moulds, during mold clamping force instability (t1 ~ t5), switch monitor 607 and the action of integrator 603 is stopped.
When mold clamping force starts stable based on maintenance current-order (t5), switch the order of monitor 607 pairs of integrator 603 output actions.In addition, switch the in respect of time displacement of monitor 607 to the mold clamping force detected value inputted from mold clamping force detector 55 and monitor, detect the stable of mold clamping force thus.Such as, if the displacement of mold clamping force detected value is within setting at the appointed time, then switches monitor 607 and be judged as that mold clamping force is stablized.
Integrator 603 starts action (i.e. the integration of mold clamping force error) according to action command.In the example of Fig. 9 (B), when starting integration, the mold clamping force detected value based on maintenance current-order of t5 is lower than target mold clamping force.Therefore, the revision directive being used for revising this mold clamping force error is exported to adder 606 by integrator 603.Adder 606 is revised the current instruction value based on the maintenance current-order from current pattern maker 602 by revision directive value.As a result, as shown in curve L3, supply electric current becomes the value exceeding rated current.Along with the increase of supply electric current, mold clamping force also increases, and in Fig. 9 (B), reaches target mold clamping force at t6.In addition, in this second embodiment, due to based on maintain current-order and mold clamping force start stable after start the integration of mold clamping force error, so the correction not carrying out sharply for current instruction value, and reduce the possibility of mold clamping force overshoot.Therefore, when reaching target mold clamping force at t6, directly stable state is become.After becoming stable state, in matched moulds keeps (during target mold clamping force should be maintained), switch monitor 607 and also make integrator 603 action.Therefore, based on the mold clamping force detected value inputted from mold clamping force detector 55, by the control of the revision directive based on the detected value according to mold clamping force detector 55, adjust the electric current supplied to coil 48.As a result, matched moulds is carried out with stable mold clamping force.
In addition, although omit in the drawings, but in matched moulds operation when have input the mold clamping force instruction for making mold clamping force reduce (namely representing the mold clamping force instruction of the mold clamping force lower than current mold clamping force) from host controller, switch monitor 607 to cease and desist order to integrator 603 output, integrator 603 is stopped.Therefore, in this case, according to this mold clamping force instruction, the electric current according to the current pattern generated by current pattern maker 602 is directly supplied in coil 48.As a result, mold clamping force starts to reduce, and is stabilized near mold clamping force that mold clamping force instruction represents.Like this, do not carry out the integration of the mold clamping force error during mold clamping force sharply reduces, prevent mold clamping force from needing to reduce with Shangdi thus.
In addition, when matched moulds operation terminate, the mold clamping force that represents from the matched moulds instruction of host controller 601 become 0 time, switch monitor 607 and integrator 603 stopped.Thus, even if be 0 from the current value of the current-order of current pattern maker 602 output, by the control of the revision directive based on the detected value according to mold clamping force detector 55, also can prevent mold clamping force from increasing.That is, this is because, under the state keeping integrator 603 action, can due to mold clamping force error intergal be exported revision directive from integrator 603, the electric current of the current value that this revision directive represents is fed in coil 48.Then, because define following circulation: owing to supplying electric current to coil 48, mold clamping force error becomes large further, export the larger revision directive of absolute value in order to revise this mold clamping force error from integrator 603, and pass through this revision directive by the electric current supply of current value larger for absolute value in coil 48.In addition, square in direct ratio due to the size of power and current value, even if so the current value of revision directive is negative, also can not to the direction effect making mold clamping force reduce.
As mentioned above, according to the control part 60b of the second embodiment, by switching monitor 607, the control of the revision directive based on the detected value according to mold clamping force detector 55 of (during rising, decline to time etc.) during mold clamping force instability is stopped.Therefore, it is possible to reduce the possibility of mold clamping force overshoot.As a result, the time arriving target mold clamping force can be shortened further compared with the first embodiment, can forming cycle be shortened.
In addition, in the present embodiment, the mold clamping force detector 55 detected the load that mould applies preferably is used as mold clamping force test section, so illustrate the example using mold clamping force detector 55.But, as mold clamping force test section, the magneticflux testing device of the magnetic flux density detecting electromagnet can also be used, also can use the distance detector etc. of the gap delta between measurement rear pattern plate 13 and adsorption plate 22.
But the control method of the mold closing mechanism of present embodiment, may not be the mold closing mechanism being carried out die opening and closing action by the driving of linear motor 28.Particularly when linear motor 28, because magnet is showed out at frame table, so may dust etc. be adhered to.Therefore, represent the variation of the application in Fig. 10, namely do not use linear motor 28 as die opening and closing drive division and use the rotary-type motor in the generation region being enclosed magnetic field by motor frame.
Explanation as the electromagnet unit of the 2nd drive division is same with Fig. 1 and Fig. 2, so omit the description.As the 1st drive division and the die opening and closing motor 74 of drive division (die opening and closing drive division) as die opening and closing, be immovably arranged on and be fixed on the motor bracket 73 of framework.Here, die opening and closing motor 74 uses the rotary-type motor in the generation region being enclosed magnetic field by 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 and ball-screw nut 71 screw togather, and form the direction of motion converting means rotary motion produced by rotary-type motor being converted to translatory movement thus.Further, ball-screw nut 71 is non-rotatably disposed in from the outstanding But moving die plate flange portion 12a in the bottom of movable template 12.Thus, by the rotation of die opening and closing motor 74, movable template 12 can seesaw, carry out the die opening and closing action of moveable die 16.
Further, in the rear end of die opening and closing motor 74, position detector 75 is installed, reads in the anglec of rotation of die opening and closing motor 74, the position of movable template 12 can be grasped.Thus, die opening and closing handling part 61 controls die opening and closing motor 74.
In this formation, produced in the process of the mold clamping force of die device 19 by electromagnet, more specifically after starting boosting, when becoming the position skew that mould can not occur, die opening and closing handling part 61 controls the electric current supply to die opening and closing motor 74 changeably.Particularly, the supply of electric current is made to stop.Thus, what die opening and closing motor 74 was caused by position control disappears on the impact of mold clamping force.
Above, detail embodiments of the invention, but the present invention is not limited to this specific embodiment, can various distortion, change be carried out in the main scope of the present invention described in Patent request scope.
This international application advocates the priority of No. 2007-221573, the Japanese patent application proposed based on August 28th, 2007, quotes the full content of No. 2007-221573 home in the application of border.
Claims (10)
1. a mold closing mechanism, by electromagnet effect mold clamping force, is characterized in that having:
First current-order generating unit, generates the current-order of electric current that correspond to target mold clamping force, that supply to above-mentioned electromagnet;
Mold clamping force test section, detects the above-mentioned mold clamping force actual value of above-mentioned electromagnet;
Second current-order generating unit, based on the mold clamping force detected value detected by above-mentioned mold clamping force test section, generates the revision directive revising above-mentioned current-order;
Switching part, switches action and the stopping of above-mentioned second current-order generating unit based on mold clamping force command value and above-mentioned mold clamping force detected value; And
Correcting current command calculations portion, based on the above-mentioned current-order generated by above-mentioned first current-order generating unit and the above-mentioned revision directive generated by above-mentioned second current-order generating unit, calculates the correcting current instruction supplied to above-mentioned electromagnet,
Above-mentioned switching part, from during regulation after matched moulds, above-mentioned second current-order generating unit is stopped.
2. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned first current-order generating unit, generates to have and produces the ascending current instruction of above-mentioned mold clamping force according to above-mentioned target mold clamping force and maintain the current-order of the maintenance current-order of mold clamping force produced.
3. mold closing mechanism as claimed in claim 2, is characterized in that,
Above-mentioned second current-order generating unit, according to the error between the mold clamping force maintained based on above-mentioned maintenance current-order and the mold clamping force detected value detected by above-mentioned mold clamping force test section, generates above-mentioned revision directive.
4. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned first current-order generating unit, generates the current-order of the current value representing larger than the electric current corresponding to above-mentioned target mold clamping force when starting matched moulds.
5. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned second current-order generating unit, based on the error between above-mentioned target mold clamping force and above-mentioned mold clamping force detected value, generates above-mentioned revision directive.
6. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned switching part, when controlling based on the maintenance current-order in the current-order generated by the first current-order generating unit, switches action and the stopping of above-mentioned second current-order generating unit.
7. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned switching part, during should maintaining target mold clamping force, makes above-mentioned second current-order generating unit action.
8. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned switching part, during the regulation starting from the change of above-mentioned target mold clamping force, makes above-mentioned second current-order generating unit stop.
9. mold closing mechanism as claimed in claim 1, is characterized in that,
Above-mentioned switching part, when above-mentioned target mold clamping force is 0, makes above-mentioned second current-order generating unit stop.
10. a clamping control method, by electromagnet effect mold clamping force, is characterized in that,
Generate the current-order of electric current that correspond to target mold clamping force, that supply to above-mentioned electromagnet;
Detect the above-mentioned mold clamping force actual value of above-mentioned electromagnet;
In order to eliminate the error between mold clamping force command value and above-mentioned mold clamping force detected value, integrator by carrying out integration to calculate the revision directive for above-mentioned current-order to above-mentioned error,
Based on above-mentioned current-order and above-mentioned revision directive, calculate the correcting current instruction supplied to above-mentioned electromagnet, and
Switching part beginning matched moulds after, during mold clamping force instability, above-mentioned integrator is stopped to the calculating of above-mentioned revision directive.
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 |
|---|---|---|---|
| JP2007221573 | 2007-08-28 | ||
| JP2007-221573 | 2007-08-28 | ||
| PCT/JP2008/065173 WO2009028488A1 (en) | 2007-08-28 | 2008-08-26 | Clamping device and clamping control method |
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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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| CN101784380B true CN101784380B (en) | 2016-03-02 |
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| CN200880104443.8A Expired - Fee Related CN101784380B (en) | 2007-08-28 | 2008-08-26 | Mold closing mechanism and clamping control method |
| 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) | CN101784380B (en) |
| DE (1) | DE112008002284T5 (en) |
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| JP5774443B2 (en) * | 2011-10-21 | 2015-09-09 | 住友重機械工業株式会社 | Injection molding machine |
| 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 |
| JP5778023B2 (en) * | 2011-12-26 | 2015-09-16 | 住友重機械工業株式会社 | 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 |
| 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 |
| CN114311570A (en) * | 2020-09-30 | 2022-04-12 | 住友重机械工业株式会社 | 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 |
| JP4510813B2 (en) * | 2004-03-19 | 2010-07-28 | 住友重機械工業株式会社 | 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 |
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2008
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| TW200932492A (en) | 2009-08-01 |
| JP5037619B2 (en) | 2012-10-03 |
| JP5437443B2 (en) | 2014-03-12 |
| TWI405658B (en) | 2013-08-21 |
| DE112008002284T5 (en) | 2010-07-22 |
| CN101784380A (en) | 2010-07-21 |
| WO2009028488A1 (en) | 2009-03-05 |
| CN102773977B (en) | 2015-09-09 |
| JPWO2009028488A1 (en) | 2010-12-02 |
| CN102773977A (en) | 2012-11-14 |
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