CN106003618A - Injection molding machine - Google Patents

Injection molding machine Download PDF

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Publication number
CN106003618A
CN106003618A CN201610177599.5A CN201610177599A CN106003618A CN 106003618 A CN106003618 A CN 106003618A CN 201610177599 A CN201610177599 A CN 201610177599A CN 106003618 A CN106003618 A CN 106003618A
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CN
China
Prior art keywords
axial force
balance
connecting rod
setting value
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610177599.5A
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Chinese (zh)
Other versions
CN106003618B (en
Inventor
森田洋
柴田达也
森谷知宽
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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Publication date
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Publication of CN106003618A publication Critical patent/CN106003618A/en
Application granted granted Critical
Publication of CN106003618B publication Critical patent/CN106003618B/en
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Classifications

    • 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
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • 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
    • B29C45/03—Injection moulding apparatus
    • 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
    • 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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/7653—Measuring, controlling or regulating mould clamping forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76026—Energy, power
    • B29C2945/7603—Power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/76033—Electric current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/7604—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76003—Measured parameter
    • B29C2945/761—Dimensions, e.g. thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76505—Force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76702—Closure or clamping device
    • B29C2945/76712—Closure or clamping device tie-bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76866—Mould closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76869—Mould clamping, compression of the cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76872—Mould opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention provides an injection molding machine which can regulate balance of axial force auxiliarily. The injection molding machine is provided with a plurality of connection rods, which are correspondingly stretched with mold clamping force, and a controller which controls the axial force on the conenction rods, and calculates preset value of operation quantity that changes the axial force according to the preset value of balance of the axial force.

Description

Injection (mo(u)lding) machine
Technical field
The application advocates based on the March 27th, 2015 of the Japanese patent application in Japanese publication The priority of No. 2015-067680.The full content of this Japanese publication is by with reference to being applied at this explanation In book.
The present invention relates to a kind of injection (mo(u)lding) machine.
Background technology
Injection (mo(u)lding) machine has the mold closing mechanism carrying out the mold closing of die device, matched moulds and die sinking.Matched moulds Device has the multiple connecting rods (such as referenced patent document 1) extended accordingly with mold clamping force.Close Mould power puts on multiple connecting rod dispersedly, thus connecting rod extends.Prolonging of connecting rod will be overcome The power stretched is referred to as axial force.When the effective length of multiple connecting rods there are differences, shorter in effective length Connecting rod and the longer connecting rod of effective length between produce the difference of axial force.Here, connecting rod Effective length refers to the parts that linked by connecting rod interval each other, such as, do not play work at mold clamping force State under measure.By adjusting the effective length of connecting rod, it is possible to adjust the balance of axial force.
Patent documentation 1: Japanese Unexamined Patent Publication 2004-249637 publication
If adjusting the effective length of a connecting rod, then the dispersity of mold clamping force changes, all The axial force of connecting rod is it may happen that change.Therefore, the balance of target is become with the balance of axial force The effective length that mode sets each connecting rod is cumbersome.
Summary of the invention
The present invention completes in view of above-mentioned problem, and its main purpose is to provide one can assist tune The injection (mo(u)lding) machine of the balance of whole axial force.
In order to solve above-mentioned problem, according to a mode of the present invention, it is provided that a kind of injection (mo(u)lding) machine, its Possess:
Multiple connecting rods, extend accordingly with mold clamping force；And
Controller, controls the axial force of described connecting rod,
Described controller, according to the setting value of the balance of described axial force, calculates and changes described axial force The setting value of operational ton.
Invention effect
A mode according to the present invention, it is provided that a kind of injection moulding assisting the balance adjusting axial force Machine.
Accompanying drawing explanation
Fig. 1 is the figure of the state at the end of the die sinking of the injection (mo(u)lding) machine representing an embodiment.
Fig. 2 is the figure of the state during matched moulds of the injection (mo(u)lding) machine representing an embodiment.
Fig. 3 is the figure of the position relationship of the connecting rod of the injection (mo(u)lding) machine representing an embodiment, and is The figure of fixation clip is observed from movable pressure plate side.
Fig. 4 is the figure of the operation screen of the injection (mo(u)lding) machine representing an embodiment.
Fig. 5 is the figure of the controller representing an embodiment.
Fig. 6 is the figure of the axial force estimating unit of the controller representing an embodiment.
In figure: 10-mold closing mechanism, 12-fixation clip, 13-movable pressure plate, 16-connecting rod, 22- Axial force detector, 23-thermoregulator, 24-temperature detector, 30-die device, 32-is fixed Mould, 33-dynamic model, 70-operates device, 80-display device, 82-axial force balance display part, 83- Horizontal axis dynamic balance display part, 83a-setting value display part, 83b-actual value display part, 84-lead Hang down axial force balance display part, 84a-setting value display part, 84b-actual value display part, and 90-controls Device, 101-axial force configuration part, 102-axial force measuration portion, 103-non-interference operational part, 104-temperature Degree configuration part, 105-Temperature measuring section, 106-homoiothermic instruction department, 107-axial force estimating unit, 108- Axial force operational part, 109-computing correction unit.
Detailed description of the invention
Hereinafter, embodiments of the present invention are illustrated, in the drawings, for phase with reference to accompanying drawing With or corresponding structure mark is identical or corresponding symbol omitting the description.
Fig. 1 is the figure of the state at the end of the die sinking of the injection (mo(u)lding) machine representing an embodiment.Fig. 2 The figure of state during for representing the matched moulds of the injection (mo(u)lding) machine of an embodiment.Injection (mo(u)lding) machine has frame Frame Fr, mold closing mechanism 10, operation device 70, display device 80 and controller 90 etc..
Controller 90 has the storages such as CPU (Central Processing Unit) 91 and memorizer Medium 92.The program that controller 90 performs to be stored in storage medium 92 by making CPU91 controls to close Die device 10, operation device 70 and display device 80 etc..
Mold closing mechanism 10 carries out the mold closing of die device 30, matched moulds and die sinking.Mold closing mechanism 10 has There are fixation clip 12, movable pressure plate 13, rear fender 15, connecting rod 16, toggle mechanism 20 and close Mould motor 21.Hereinafter, by the moving direction of the movable pressure plate 13 during mold closing (Fig. 1, Fig. 2 are Right direction) it is set to front, by the moving direction of the movable pressure plate 13 during die sinking (Fig. 1, Fig. 2 are Left direction) it is set to rear and illustrates.
Fixation clip 12 is fixed on framework Fr.The face opposed with movable pressure plate 13 of fixation clip 12 On cover half 32 is installed.
Movable pressure plate 13 moves freely along the guiding piece (such as guide rail) 17 being layed on framework Fr, And it is free to advance or retreat relative to fixation clip 12.The face opposed with fixation clip 12 of movable pressure plate 13 On dynamic model 33 is installed.
By making movable pressure plate 13 carry out mold closing, matched moulds relative to fixation clip 12 and open Mould.Die device 30 is constituted by cover half 32 and dynamic model 33.
Rear fender 15 links with fixation clip 12 across interval, and along mould opening and closing direction movably It is placed on framework Fr.It addition, rear fender 15 can also be along the guiding piece being layed on framework Fr Move freely.The guiding piece of rear fender 15 can be general with the guiding piece 17 of movable pressure plate 13.
It addition, in present embodiment, fixation clip 12 is fixed on framework Fr, and rear fender 15 is relative Move freely in framework Fr along mould opening and closing direction but it also may be fixed on framework Fr for rear fender 15, And fixation clip 12 moves freely along mould opening and closing direction relative to framework Fr.
Connecting rod 16 links fixation clip 12 and rear fender 15 across interval.Multiple connection can be used Bar 16.Each connecting rod 16 is parallel with mould opening and closing direction, and extends accordingly with mold clamping force.
Toggle mechanism 20 is disposed between movable pressure plate 13 and rear fender 15.Toggle mechanism 20 is by ten Prefix 20a, multiple connecting rod 20b, 20c etc. are constituted.Wherein the connecting rod 20b of a side rotatably pacifies Being loaded on movable pressure plate 13, the connecting rod 20c of the opposing party is rotatably installed on rear fender 15.These Connecting rod 20b, 20c are joined into capable of expansion and contraction by pin etc..By making crosshead 20a retreat, many Individual connecting rod 20b, 20c are flexible, and movable pressure plate 13 is retreated relative to rear fender 15.
Matched moulds motor 21 is installed on rear fender 15, and can dynamic pressure by making crosshead 20a advance and retreat make Plate 13 is retreated.It is provided with between matched moulds motor 21 and crosshead 20a and the rotation of matched moulds motor 21 is transported Dynamic being converted to moves along a straight line and is transferred to the movement conversion mechanism of crosshead 20a.Movement conversion mechanism example As being made up of ball screw framework.
The action of mold closing mechanism 10 is controlled by controller 90.Controller 90 controls mold closing work Sequence, matched moulds operation and die sinking operation etc..
In mold closing operation, by driving matched moulds motor 21 to make movable pressure plate 13 advance, so that dynamic Mould 33 contacts with cover half 32.
In matched moulds operation, by driving matched moulds motor 21 to produce mold clamping force further.During matched moulds Form cavity space between dynamic model 33 and cover half 32, cavity space is filled with the forming material of liquid Material.Moulding material in cavity space is cured and becomes products formed.
In die sinking operation, by driving matched moulds motor 21 to make movable pressure plate 13 retreat, so that dynamic Mould 33 separates with cover half 32.
It addition, in the mold closing mechanism 10 of present embodiment, as the driving making movable pressure plate 13 move Source and there is matched moulds motor 21, but can substitute for matched moulds motor 21 and there is hydraulic cylinder.Further, close Die device 10 can have the linear motor of mould opening and closing, it is possible to have the electric magnet of matched moulds.
Fig. 3 is the figure of the position relationship of the connecting rod of the injection (mo(u)lding) machine representing an embodiment, and is The figure of fixation clip is observed from movable pressure plate side.Injection (mo(u)lding) machine has 4 connecting rods 16.Open from mould When closing direction observation, 4 connecting rods 16 arrange centered by horizontal line L 1 symmetrical above and belowly, and with Symmetrically arrange centered by plumb line L2.Side more top than horizontal line L 1 is referred to as top side, will Bottom side it is referred to as more on the lower than horizontal line L 1.Further, will be than plumb line L2 more by operation device 70 Side is referred to as fore side, by more by the opposition side of operation device 70, to be referred to as fore side contrary than plumb line L2 Side.
Mold clamping force puts on 4 connecting rods 16 dispersedly, thus each connecting rod 16 extends.Will The power overcoming the extension of each connecting rod 16 is referred to as axial force.The effective length of 4 connecting rods 16 has difference In the different time, produce between the connecting rod 16 that the shorter connecting rod 16 of effective length and effective length are longer The difference of axial force.Here, the effective length of connecting rod 16 refers to by fixing that connecting rod 16 links Interval between pressing plate 12 and rear fender 15, such as, survey when mold clamping force does not plays a role Amount.
By adjusting the effective length of connecting rod 16, it is possible to adjust the balance of axial force.Axial force Balance is in the way of such as when matched moulds, surface pressing by cover half 32 with dynamic model 33 becomes the distribution of target Set.The distribution of target can be to be uniformly distributed and either one of uneven distribution, can be according to circumstances Set.Molding can be reduced bad.
Owing to connecting rod 16 is formed by metal material, therefore the effective length of connecting rod 16 is according to connection The temperature of bar 16 and change.The temperature of connecting rod 16 is the highest, the effective length of connecting rod 16 The longest.By regulating the temperature of connecting rod 16, it is possible to adjust the effective length of connecting rod 16, and energy Enough adjust the balance of axial force.
Therefore, as shown in Figures 1 and 2, each connecting rod 16 is provided with axial force detector 22, Thermoregulator 23 and temperature detector 24 etc..Mold closing mechanism 10 possess axial force detector 22, Thermoregulator 23 and temperature detector 24 etc..
Axial force detector 22 detects the axial force of connecting rod 16.Axial force detector 22 is for example, Strain gage type, detects the axial force of connecting rod 16 by the strain of detection connecting rod 16.Axial force Testing result is exported to controller 90 by detector 22.
Controller 90 sets the temperature of connecting rod 16, sets so that the actual value of the balance of axial force becomes Definite value.Carry out aftermentioned for this establishing method.
It addition, although the axial force detector 22 of above-mentioned embodiment is strain gage type but it also may For piezoelectric type, condenser type, fluid pressure type, electromagnetic type etc..
Thermoregulator 23 regulates the temperature of connecting rod 16.To be regulated by the temperature of connecting rod 16 Device 23 regulates the part of temperature and is referred to as temperature regulation section.Thermoregulator 23 such as comprises heating element Deng heater, and regulated the temperature of the temperature regulation section of connecting rod 16 by heating.
It addition, thermoregulator 23 can comprise the coolers such as water collar, and regulated by cooling The temperature of the temperature regulation section of connecting rod 16.Thermoregulator 23 can comprise heater and cooler Both.
Controller 90 controls thermoregulator 23, so that the temperature of the temperature regulation section of connecting rod 16 Actual value becomes setting value.Control can be either one of feedback control and the feedforward.
But, adjust if being set changing to the temperature of the temperature regulation section of a connecting rod 16 Its effective length, then the dispersity of mold clamping force changes, and the axial force of all of connecting rod can Can change.Further, if being set becoming to the temperature of the temperature regulation section of a connecting rod 16 More, then because of the movement of heat, the temperature of other connecting rods is it may happen that change.
Therefore, controller 90 manages the balance of axial force, replaces each connecting rod of individual management 16 Axial force.Thus, although detailed content carries out aftermentioned, but can assist adjust axial force balance.
It addition, controller 90 can manage balance and each axial force of individual management of axial force.
Controller 90 is connected to operate device 70 and display device 80.Operation device 70 and display dress Put 80 to be such as made up of contact panel, and can be integrated.Operation device 70 accepts to be entered by user The input operation of row, and signal corresponding with input operation is exported to controller 90.Display device 80 under a control of the controller 90, shows and corresponding operates picture with the input operation in operation device 70 Face.Operation screen can be used for the setting etc. of injection (mo(u)lding) machine.Prepare multiple operation screen to switch over Show or repeat display.User is by grasping while observing the operation screen shown by display device 80 Operate device 70 to carry out the setting etc. of injection (mo(u)lding) machine.
It addition, the operation device 70 of present embodiment and display device 80 are integrated but it also may It is independently arranged.Further, operation device 70 can be provided with multiple.
Fig. 4 is the figure of the operation screen of the injection (mo(u)lding) machine representing an embodiment.Operation screen has Axial force balance display part 82.Axial force balance display part 82 shows the balance of axial force (balance).Therefore, compared with indivedual situations showing each axial force, user is easily mastered also It is easily adjusted the surface pressure distribution of cover half 32 and dynamic model 33.Here, the balance of axial force is spindle To the bias state of power, such as, can be represented by the difference of axial force.The difference of axial force can be by relatively Average ratio (%) in axial force represents.
It addition, operation screen can also have indivedual axial force display part showing each axial force.
Axial force balance display part 82 has horizontal axis dynamic balance display part 83 and vertical axial force is put down Weighing apparatus display part 84.Horizontal axis dynamic balance display part 83 and vertical axial force balance display part 84 are permissible It is displayed simultaneously on operation screen.Can the balance of identification both direction.
(below, horizontal axis dynamic balance display part 83 shows the balance of the axial force in horizontal direction May also be referred to as horizontal axis dynamic balance).Horizontal axis dynamic balance is such as by the two of fore side connections The meansigma methods of the axial force of bar 16 is average with the axial force of the two of fore side opposition side connecting rods 16 The difference of value represents.This difference can be come by the ratio (%) of the meansigma methods relative to all of axial force Represent.For ratio, will not change because of the size of mold clamping force.
If the numerical value of horizontal axis dynamic balance is set to Nh (%), then the axial force of fore side is average Value becomes 100+Nh/2 (%), and the meansigma methods of the axial force of fore side opposition side becomes 100-Nh/2 (%).Numerical value of N h of horizontal axis dynamic balance is that the meansigma methods of the axial force just referring to fore side is more than The meansigma methods of the axial force of fore side opposition side.And numerical value of N h of horizontal axis dynamic balance refers to for negative The meansigma methods of the axial force of fore side is less than the meansigma methods of the axial force of fore side opposition side.
It addition, the axial force of the positive and negative and fore side of the numerical value of horizontal axis dynamic balance and fore side phase Relation between the size of the axial force tossed about can be contrary.
Horizontal axis dynamic balance display part 83 has setting value display part 83a and actual value display part 83b.The setting value of setting value display part 83a display horizontal axis dynamic balance.Actual value display part 83b The actual value of display horizontal axis dynamic balance.Setting value display part 83a and actual value display part 83b can To be displayed simultaneously on operation screen.Can identification setting value and the deviation of actual value.
User operates device 70, by horizontal axis dynamic balance by operation while observing operation screen Setting value inputs to setting value display part 83a.Controller 90 sets the temperature of connecting rod 16, so that The actual value of horizontal axis dynamic balance becomes setting value.
(below, vertical axial force balance display part 84 shows the balance of the axial force in vertical May also be referred to as vertical axial force balance).Vertical axial force balance is such as by the two of top side connecting rods The difference of the meansigma methods of the axial force of the meansigma methods of the axial force of 16 and the two of bottom side connecting rods 16 carrys out table Show.This difference can be represented by the ratio (%) of the meansigma methods relative to all of axial force.Just than For example, will not change because of the size of mold clamping force.
If the numerical value of vertical axial force balance to be set to Nv (%), the then meansigma methods of the axial force of top side Becoming 100+Nv/2 (%), the meansigma methods of the axial force of bottom side becomes 100-Nv/2 (%).Vertical Numerical value of N v of axial force balance is the meansigma methods axial force more than bottom side of the axial force just referring to top side Meansigma methods.On the other hand, numerical value of N v of vertical axial force balance is the negative axial force referring to top side Meansigma methods less than the meansigma methods of axial force of bottom side.
It addition, the axial force of the positive and negative and top side of the numerical value of vertical axial force balance and bottom side is axial Relation between the size of power can be contrary.
Vertical axial force balance display part 84 has setting value display part 84a and actual value display part 84b.The setting value of setting value display part 84a display vertical axial force balance.Actual value display part 84b The actual value of display vertical axial force balance.Setting value display part 84a and actual value display part 84b can To be displayed simultaneously on operation screen.Can identification setting value and the deviation of actual value.
User operates device 70, by vertical axial force balance by operation while observing operation screen Setting value inputs to setting value display part 84a.Controller 90 sets the temperature of connecting rod 16, so that The actual value of vertical axial force balance becomes setting value.
Fig. 5 is the figure of the controller representing an embodiment.As it is shown in figure 5, controller 90 basis The setting value etc. of the balance of axial force, calculates the connecting rod 16 of operational ton as change axial force The setting value of the temperature of temperature regulation section.
Controller 90 has axial force configuration part 101, axial force measuration portion 102, non-interference operational part 103, temperature setting portion 104, Temperature measuring section 105 and homoiothermic instruction department 106.
The setting value of the balance of axial force is obtained in axial force configuration part 101.Such as axial force configuration part 101 utilize operation screen to obtain setting value and the setting of vertical axial force balance of horizontal axis dynamic balance Value.The balance of axial force can be represented by the difference of the bias state of axial force, such as axial force.Axle Can be represented by the average ratio (%) relative to axial force to the difference of power.For ratio, Will not change because of the size of mold clamping force.
Axial force measuration portion 102 utilizes axial force detector 22 to measure the axial force of each connecting rod 16 Actual value.
Non-interference operational part 103, according to the measurement result in axial force measuration portion 102, obtains axial force The actual value of balance.The actual value of such as non-interference operational part 103 calculated level axial force balance and lead The actual value of vertical axial force balance.
Temperature setting portion 104 (is setting value and reality in Fig. 5 according to the setting value etc. of the balance of axial force The difference of actual value), calculate the setting value of the temperature of the temperature regulation section of each connecting rod 16.Each with basis The setting value of axial force carries out the situation of this calculating and compares, and is easily processed the temperature of a connecting rod 16 The impact that the axial force on another connecting rod 16 is brought is changed in setting of the temperature in degree regulation portion, and Easily set the temperature of the temperature regulation section of each connecting rod 16.It addition, after although detailed content is carried out State, but the guess value of the balance of axial force can be used to replace the actual value of the balance of axial force.
Temperature setting portion 104 such as can be by
The temperature of the temperature regulation section of the connecting rod 16 of fore side and top side be set to T0+Th+Tv,
The temperature of the temperature regulation section of the connecting rod 16 of fore side and bottom side be set to T0+Th-Tv,
The temperature of the temperature regulation section of the connecting rod 16 of fore side opposition side and top side is set to T0- Th+Tv、
The temperature of the temperature regulation section of the connecting rod 16 of fore side opposition side and bottom side is set to T0-Th- Tv, and set T0 (DEG C), Th (DEG C), Tv (DEG C).T0 represents the temperature of all connecting rods 16 The degree meansigma methods (DEG C) of temperature in regulation portion, Th represent the temperature of the temperature regulation section in horizontal direction Balance (poor), Tv represent the balance (poor) of temperature of temperature regulation section in vertical.
Temperature setting portion 104 can be according to the temperature of the temperature regulation section of the connecting rod 16 as operational ton The impact that the balance on axial force is brought is changed in setting of degree, calculates the temperature regulation of each connecting rod 16 The setting value of the temperature in portion.It is contemplated that the setting of the temperature of the temperature regulation section of a connecting rod 16 The impact that the axial force of another connecting rod 16 is brought by fixed change.Above-mentioned impact can by experiment or Simulation is obtained in advance, and reads and be stored in the impact of storage medium 92 and use.Above-mentioned impact Storage medium 92 can be stored in by the mode such as formula or table.
Temperature measuring section 105 utilizes temperature detector 24 to measure the temperature regulation section of connecting rod 16 The actual value of temperature.
Homoiothermic instruction department 106 is according to (Fig. 5 such as the setting values of the temperature of the temperature regulation section of connecting rod 16 In be the difference of setting value and actual value), generate the instruction to each thermoregulator 23.
As described above, controller 90, according to the setting value etc. of the balance of axial force, calculates as changing Become the setting value of the temperature of the temperature regulation section of the connecting rod 16 of the operational ton of axial force.By each company Extension bar 16 calculates this setting value.Controller 90, according to the setting value etc. calculated, generates temperature regulation The instruction of device 23.This instruction is generated by each thermoregulator 23.
But, the actual value of the temperature of the temperature regulation section of connecting rod 16 needs till becoming setting value Time.Further, after this actual value is stable into setting value, the Temperature Distribution of mold closing mechanism 10 entirety Require time for till Wen Ding.And, the actual value of axial force can only be measured when matched moulds, and generally nothing Method is measured.
Therefore, controller 90 can have axial force estimating unit 107 (with reference to Fig. 6).Axially try hard to recommend Survey portion 107 is according to the temperature of the temperature regulation section of the connecting rod 16 as the operational ton changing axial force Degree, thus it is speculated that axial force.
Controller 90 cannot measure the reality of axial force by the axial force measuration portion 102 shown in Fig. 5 The period of actual value, also utilize the guess value of axial force to replace axial force actual value and can be suitably Control thermoregulator 23.Therefore, it is possible to till the axial force that shortens connecting rod 16 is stable time Between.
Such as, as shown in Figure 6, axial force estimating unit 107 has axial force operational part 108 and computing Correction unit 109.
Axial force operational part 108 is according to the temperature of the connecting rod 16 as the operational ton changing axial force The temperature in regulation portion calculates axial force.When calculating axial force, axial force operational part 108 can be in order to Actual value by the temperature of above-mentioned temperature regulation section.
It addition, when calculating axial force, the axial force operational part 108 of present embodiment utilizes above-mentioned temperature The actual value of the temperature in degree regulation portion but it also may utilize the setting of the temperature in said temperature regulation portion Value.
When calculating axial force, axial force operational part 108 such as utilizes FInite Element (Finite Element Method).According to FInite Element, it is possible to calculate the Temperature Distribution of mold closing mechanism 10 Time changes, and can calculate each axial force.
It addition, when calculating axial force, the axial force operational part 108 of present embodiment utilizes finite element Method but it also may utilize the heat transfer model made based on thermic vibrating screen etc..Calculate axial force Shi Liyong specific heat, heet transfer rate etc..
Axial force operational part 108 can calculate the currency (instantaneous value) of axial force, it is also possible to calculates The axial force of transitive state.Here, transitive state refers to start directly from the control of thermoregulator 23 To the Temperature Distribution of the mold closing mechanism 10 entirety state stable.
It addition, currency is not limited to the value under transitive state, it is also possible to for the value under steady statue. Here, the actual value that steady statue refers to the temperature of the temperature regulation section of connecting rod 16 is stable into setting Value, and, the state that the Temperature Distribution of mold closing mechanism 10 entirety is stable.
Axial force operational part 108 such as can calculate the future value (such as stationary value) of axial force and carry out generation Currency for axial force.
Axial force operational part 108 can have the function of the non-interference operational part 103 shown in Fig. 5, also The balance of axial force can be calculated.The balance of axial force can be by the bias state of axial force, such as axle Represent to the difference of power.The difference of axial force can be come by the average ratio (%) relative to axial force Represent.For ratio, will not change because of the size of mold clamping force.
Axial force operational part 108 such as calculated level axial force balance and vertical axial force balance.Control Device 90 can adjust the balance in both direction simultaneously.It addition, controller 90 can only adjust arbitrary The balance of unidirectional axial force, and axial force operational part 108 can only calculate arbitrary unidirectional axial force Balance.
Computing correction unit 109 is counted by axial force operational part 108 according to the actual value of axial force, correction The value of calculation of the axial force calculated.Thereby, it is possible to improve by axial force estimating unit 107 speculate axial The supposition precision of power.
Computing correction unit 109 such as calculates the benefit that the input value with axial force operational part 108 carries out adding Repay value.The computing correction unit 109 actual value according to axial force measured during matched moulds and the meter of axial force Difference between calculation value, calculates the offset of temperature.By the reality by the offset of this temperature Yu temperature Actual value is added, it is possible to the value of calculation of correction axial force.The offset of this temperature can use under measurement Till the actual value of axial force once, it is also possible to carry out more when measuring the actual value of axial force every time Newly.
It addition, the computing correction unit 109 of present embodiment calculates the input with axial force operational part 108 Value carries out the offset added but it also may calculates the output valve with axial force operational part 108 and adds The offset calculated.
Above, the embodiment etc. of injection (mo(u)lding) machine is illustrated, but the present invention is not limited to Above-mentioned embodiments etc., in the range of spirit of the invention described in detail in the claims, can enter The various deformation of row and improvement.
In the most above-mentioned embodiment, axial force detector 22, thermoregulator 23 and temperature detection Device 24 is installed on all of connecting rod 16, but can only be installed on a part of connecting rod 16.Such as, In the case of controller 90 adjusts vertical axial force balance and both horizontal axis dynamic balances, permissible Thermoregulator 23 and temperature detector 24 are installed on only 3 in 4 connecting rods 16.And And, in the case of controller 90 only adjusts vertical axial force balance, can be in top side and bottom side Thermoregulator 23 and temperature detector 24 are only installed in the connecting rod 16 of side.Further, controller 90 only adjust in the case of vertical axial force balance, can in the two of top side connecting rod 16 one It is respectively mounted axial force detector 22 in individual and two connecting rods 16 of bottom side one.
Further, in above-mentioned embodiment, the difference of axial force represent the balance of axial force, but also may be used To be represented by the ratio of axial force.Such as vertical axial force balance can average by the axial force of top side Value represents with the ratio of the meansigma methods of the axial force of bottom side.Similarly, horizontal axis dynamic balance can be by The meansigma methods of the axial force of fore side represents with the ratio of the meansigma methods of the axial force of fore side opposition side.
Further, the controller 90 of above-mentioned embodiment is as changing the operational ton of axial force and the company of utilization The temperature of extension bar 16 but it also may utilize the effective length of connecting rod 16.Connecting rod 16 effective The adjustment of length such as can use and be formed at the external screw thread 41 of connecting rod 16, be screwed together in external screw thread The female thread 42 of 41 and make the rotation motor (not shown) etc. that female thread 42 rotates.Female thread 42 Rear fender 15 it is installed in the way of can not retreating and be rotatable.Controller 90 is rotated by control The rotation of motor adjusts the effective length of connecting rod 16.It addition, female thread 42 can the company of being installed on In two parts (fixation clip 12 and rear fender 15 in above-mentioned embodiment) that extension bar 16 is linked Either one, it is also possible to be installed on both sides.As the operational ton changing axial force, it is possible to use connect The temperature of bar 16 and both effective lengths of connecting rod 16.The temperature of connecting rod 16 can also be led to The increase and decrease of the supply electric power crossing the heating element to heating connecting rod 16 regulates.Therefore, can be by sending out The supply electric power of hot device is used as to change the operational ton of axial force.
Further, the mold closing mechanism 10 of above-mentioned embodiment is the horizontal of horizontal direction for mould opening and closing direction Mold closing mechanism but it also may for the vertical mold closing mechanism that mould opening and closing direction is vertical.Vertical matched moulds Device has the lower platen as fixation clip, the top board as movable pressure plate, toggle seat, toggle Mechanism and connecting rod etc..Lower mold is installed on lower platen, top board is provided with upper mold.By lower mold and Upper mold constitutes die device.Lower mold can be installed on lower platen via turntable.Toggle seat is disposed in down presses The lower section of plate, and together lift with top board.Toggle mechanism is disposed between toggle seat and lower platen. Connecting rod is parallel with vertical, and runs through lower platen, thus links top board and toggle seat.Connect The quantity of bar is usually 3.It addition, the quantity of connecting rod is not particularly limited.

Claims (9)

1. an injection (mo(u)lding) machine, it possesses:
Multiple connecting rods, extend accordingly with mold clamping force；And
Controller, controls the axial force of described connecting rod,
Described controller, according to the setting value of the balance of described axial force, calculates and changes described axial force The setting value of operational ton.
Injection (mo(u)lding) machine the most according to claim 1, wherein,
Described controller changes, according to setting of described operational ton, the shadow that the balance to described axial force is brought Ring, calculate the setting value of described operational ton.
Injection (mo(u)lding) machine the most according to claim 1 and 2, wherein,
Described controller obtains the actual value of the balance of described axial force, and putting down according to described axial force The setting value of weighing apparatus and this actual value, calculate the setting value of described operational ton.
4. according to the injection (mo(u)lding) machine according to any one of claims 1 to 3, wherein,
Described controller obtains the guess value of the balance of described axial force, and putting down according to described axial force The setting value of weighing apparatus and this guess value, calculate the setting value of described operational ton.
5. according to the injection (mo(u)lding) machine according to any one of Claims 1 to 4, wherein,
Described controller, according to the setting value of the balance of the described axial force in horizontal direction, calculates described The setting value of operational ton.
6. according to the injection (mo(u)lding) machine according to any one of Claims 1 to 5, wherein,
Described controller, according to the setting value of the balance of the described axial force in vertical, calculates described The setting value of operational ton.
7. according to the injection (mo(u)lding) machine according to any one of claim 1～6, wherein,
Described controller utilizes the difference balance as described axial force of described axial force.
8. according to the injection (mo(u)lding) machine according to any one of claim 1～7, wherein,
Described controller with the average ratio relative to described axial force represent described axial force it Difference.
9. according to the injection (mo(u)lding) machine according to any one of claim 1～8, wherein,
Described controller utilizes the temperature of described connecting rod, the length of described connecting rod and described to heating At least one in the supply electric power of the heating element of connecting rod is as described operational ton.
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