TWI586515B - Injection molding machine - Google Patents

Injection molding machine Download PDF

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Publication number
TWI586515B
TWI586515B TW105109557A TW105109557A TWI586515B TW I586515 B TWI586515 B TW I586515B TW 105109557 A TW105109557 A TW 105109557A TW 105109557 A TW105109557 A TW 105109557A TW I586515 B TWI586515 B TW I586515B
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Taiwan
Prior art keywords
axial force
balance
temperature
set value
controller
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TW105109557A
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Chinese (zh)
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TW201634224A (en
Inventor
Hiroshi Morita
Tatsuya Shibata
Tomohiro Moriya
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Sumitomo Heavy Industries
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Publication of TWI586515B publication Critical patent/TWI586515B/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)

Description

射出成形機 Injection molding machine

本發明係有關一種射出成形機。 The present invention relates to an injection molding machine.

射出成形機具有進行模具裝置的閉模、合模及開模之合模裝置。合模裝置具有與合模力對應而延伸的複數個繫桿(例如參閱專利文獻1)。合模力分散施加於複數個繫桿，從而繫桿延伸。將抵抗繫桿的延伸的力稱作軸向力。複數個繫桿的有效長度存在差異時，在有效長度較短的繫桿與有效長度較長的繫桿之間產生軸向力之差。在此，繫桿的有效長度係指藉由繫桿連結之構件彼此的間隔，例如可在合模力不發揮功能的狀態下測量。藉由調整繫桿的有效長度，能夠調整軸向力的平衡。 The injection molding machine has a mold clamping device that performs mold closing, mold clamping, and mold opening of the mold device. The mold clamping device has a plurality of tie bars that extend in accordance with the mold clamping force (see, for example, Patent Document 1). The clamping force is applied to a plurality of tie bars so that the tie bars extend. The force that resists the extension of the tie rod is referred to as the axial force. When there is a difference in the effective lengths of the plurality of tie bars, a difference in axial force is generated between the tie bars having a shorter effective length and the tie bars having a longer effective length. Here, the effective length of the tie rod means the interval between the members joined by the tie rods, for example, in a state where the mold clamping force does not function. The balance of the axial force can be adjusted by adjusting the effective length of the tie rod.

(先前技術文獻) (previous technical literature) (專利文獻) (Patent Literature)

專利文獻1：日本特開2004-249637號公報 Patent Document 1: Japanese Patent Laid-Open Publication No. 2004-249637

若調整一個繫桿的有效長度，則合模力的分散狀態發生變化，且所有繫桿的軸向力可能發生變化。因此，以軸向力的平衡成為目標的平衡的方式設定各繫桿的有效長度相當麻煩。 If the effective length of one tie rod is adjusted, the dispersion state of the mold clamping force changes, and the axial force of all the tie rods may change. Therefore, it is quite troublesome to set the effective length of each tie rod in such a manner that the balance of the axial force is the target balance.

本發明係鑑於上述課題而完成的，其主要目的在於提供一種可輔助調整軸向力的平衡之射出成形機。 The present invention has been made in view of the above problems, and a main object thereof is to provide an injection molding machine capable of assisting in adjusting the balance of axial forces.

為了解決上述課題，依本發明的一樣態，提供一種射出成形機，其具備：與合模力對應而延伸的複數個繫桿；及控制前述繫桿的軸向力的控制器，前述控制器依據前述軸向力的平衡的設定值，計算出改變前述軸向力的操作量的設定值。 In order to solve the above problems, according to the present invention, an injection molding machine including: a plurality of tie bars extending in accordance with a mold clamping force; and a controller for controlling an axial force of the tie bars, the controller The set value of the operation amount for changing the aforementioned axial force is calculated based on the set value of the balance of the axial force described above.

依本發明的一樣態，提供一種可輔助調整軸向力的平衡之射出成形機。 In accordance with the state of the invention, an injection molding machine that assists in adjusting the balance of axial forces is provided.

10‧‧‧合模裝置 10‧‧‧Molding device

12‧‧‧固定壓板 12‧‧‧Fixed platen

13‧‧‧可動壓板 13‧‧‧ movable platen

16‧‧‧繫桿 16‧‧‧ tied

22‧‧‧軸向力檢測器 22‧‧‧Axial force detector

23‧‧‧溫度調節器 23‧‧‧temperature regulator

24‧‧‧溫度檢測器 24‧‧‧ Temperature detector

30‧‧‧模具裝置 30‧‧‧Molding device

32‧‧‧固定模 32‧‧‧Fixed mode

33‧‧‧可動模 33‧‧‧ movable mold

70‧‧‧操作裝置 70‧‧‧Operator

80‧‧‧顯示裝置 80‧‧‧ display device

82‧‧‧軸向力平衡顯示部 82‧‧‧Axial force balance display

83‧‧‧水平軸向力平衡顯示部 83‧‧‧Horizontal axial force balance display

83a‧‧‧設定值顯示部 83a‧‧‧Set value display

83b‧‧‧實際值顯示部 83b‧‧‧ actual value display

84‧‧‧鉛垂軸向力平衡顯示部 84‧‧‧Deep axial force balance display

84a‧‧‧設定值顯示部 84a‧‧‧Set value display

84b‧‧‧實際值顯示部 84b‧‧‧ Actual value display

90‧‧‧控制器 90‧‧‧ Controller

101‧‧‧軸向力設定部 101‧‧‧Axial force setting unit

102‧‧‧軸向力測量部 102‧‧‧Axial force measurement department

103‧‧‧非干涉運算部 103‧‧‧Non-interference operation

104‧‧‧溫度設定部 104‧‧‧ Temperature setting department

105‧‧‧溫度測量部 105‧‧‧Temperature Measurement Department

106‧‧‧調溫指令部 106‧‧‧Temperature Command Department

107‧‧‧軸向力推測部 107‧‧‧Axial force estimation department

108‧‧‧軸向力運算部 108‧‧‧Axial force calculation department

109‧‧‧運算校正部 109‧‧‧Operation Correction Department

第1圖係表示一實施形態的射出成形機的開模結束時的狀態的圖。 Fig. 1 is a view showing a state at the time of completion of mold opening of the injection molding machine according to the embodiment.

第2圖係表示一實施形態的射出成形機的合模時的狀 態的圖。 Fig. 2 is a view showing the state of the injection molding machine of the embodiment at the time of mold clamping State diagram.

第3圖係表示一實施形態的射出成形機的繫桿的位置關係的圖，且為從可動壓板側觀察固定壓板的圖。 Fig. 3 is a view showing the positional relationship of the tie bars of the injection molding machine according to the embodiment, and is a view of the fixed pressure plate as seen from the movable platen side.

第4圖係表示一實施形態的射出成形機的操作畫面的圖。 Fig. 4 is a view showing an operation screen of the injection molding machine of the embodiment.

第5圖係表示一實施形態的控制器的圖。 Fig. 5 is a view showing a controller of an embodiment.

第6圖係表示一實施形態的控制器的軸向力推測部的圖。 Fig. 6 is a view showing an axial force estimating unit of the controller of the embodiment.

以下，參閱附圖對本發明的實施形態進行說明，在各附圖中，對於相同或相應的結構標註相同或相應的符號並省略說明。 In the following, the embodiments of the present invention will be described with reference to the accompanying drawings.

第1圖係表示一實施形態的射出成形機的開模結束時的狀態的圖。第2圖係表示一實施形態的射出成形機的合模時的狀態的圖。射出成形機具有框架Fr、合模裝置10、操作裝置70、顯示裝置80及控制器90等。 Fig. 1 is a view showing a state at the time of completion of mold opening of the injection molding machine according to the embodiment. Fig. 2 is a view showing a state at the time of mold clamping of the injection molding machine according to the embodiment. The injection molding machine has a frame Fr, a mold clamping device 10, an operation device 70, a display device 80, a controller 90, and the like.

控制器90具有CPU(Central Processing Unit)91及記憶體等記憶媒體92。控制器90藉由對CPU91執行存儲於記憶媒體92的程式來控制合模裝置10、操作裝置70及顯示裝置80等。 The controller 90 has a CPU (Central Processing Unit) 91 and a memory medium 92 such as a memory. The controller 90 controls the mold clamping device 10, the operation device 70, the display device 80, and the like by executing a program stored in the memory medium 92 on the CPU 91.

合模裝置10進行模具裝置30的閉模、合模及開模。合模裝置10具有固定壓板12、可動壓板13、後壓板15、繫桿16、肘節機構20及合模馬達21。以下，將閉模 時的可動壓板13的移動方向(第1圖、第2圖中為右方向)設為前方，將開模時的可動壓板13的移動方向(第1圖、第2圖中為左方向)設為後方來進行說明。 The mold clamping device 10 performs mold closing, mold clamping, and mold opening of the mold device 30. The mold clamping device 10 has a fixed platen 12, a movable platen 13, a rear platen 15, a tie rod 16, a toggle mechanism 20, and a mold clamping motor 21. Following, the mold will be closed The moving direction of the movable platen 13 at the time (the right direction in the first drawing and the second drawing) is set to the front, and the moving direction of the movable platen 13 at the time of mold opening (the left direction in the first drawing and the second drawing) is set. For the sake of the rear.

固定壓板12固定於框架Fr。在固定壓板12的與可動壓板13的對向面安裝有固定模32。 The fixed platen 12 is fixed to the frame Fr. A fixed die 32 is attached to the opposing surface of the fixed platen 12 and the movable platen 13.

可動壓板13沿著舖設於框架Fr上之導件(例如導軌)17移動自如，且相對於固定壓板12進退自如。在可動壓板13的與固定壓板12的對向面安裝有可動模33。 The movable platen 13 is freely movable along a guide (for example, a guide rail) 17 laid on the frame Fr, and is movable forward and backward with respect to the fixed platen 12. A movable mold 33 is attached to the opposing surface of the movable platen 13 and the fixed platen 12.

藉由使可動壓板13相對於固定壓板12進退來進行閉模、合模及開模。由固定模32及可動模33構成模具裝置30。 The mold closing, the mold clamping, and the mold opening are performed by advancing and retracting the movable platen 13 with respect to the fixed platen 12. The mold device 30 is constituted by the fixed mold 32 and the movable mold 33.

後壓板15隔著間隔與固定壓板12連結，且沿著模開閉方向移動自如地載置於框架Fr上。另外，後壓板15亦可以沿著舖設於框架Fr上之導件移動自如。後壓板15的導件可以與可動壓板13的導件17通用。 The rear pressure plate 15 is coupled to the fixed pressure plate 12 with a space therebetween, and is movably placed on the frame Fr in the mold opening and closing direction. In addition, the rear platen 15 can also move freely along the guides laid on the frame Fr. The guide of the rear platen 15 can be used in common with the guide 17 of the movable platen 13.

另外，本實施形態中，固定壓板12固定於框架Fr，且後壓板15相對於框架Fr沿著模開閉方向移動自如，但亦可以是後壓板15固定於框架Fr，且固定壓板12相對於框架Fr沿著模開閉方向移動自如。 Further, in the present embodiment, the fixed platen 12 is fixed to the frame Fr, and the rear platen 15 is movable in the mold opening and closing direction with respect to the frame Fr. However, the rear platen 15 may be fixed to the frame Fr, and the fixed platen 12 may be fixed relative to the frame. Fr moves freely along the mold opening and closing direction.

繫桿16隔著間隔將固定壓板12與後壓板15連結。可以使用複數個繫桿16。各繫桿16與模開閉方向平行，且與合模力對應而延伸。 The tie rod 16 connects the fixed pressure plate 12 and the rear pressure plate 15 at intervals. A plurality of tie rods 16 can be used. Each of the tie bars 16 is parallel to the mold opening and closing direction and extends in accordance with the mold clamping force.

肘節機構20配設於可動壓板13與後壓板15之間。肘節機構20由十字頭20a、複數個連桿20b、20c等構 成。其中一方的連桿20b擺動自如地安裝於可動壓板13，另一方連桿20c擺動自如地安裝於後壓板15。該等連桿20b、20c藉由插銷等被連結成伸縮自如。藉由使十字頭20a進退，複數個連桿20b、20c伸縮，可動壓板13相對於後壓板15進退。 The toggle mechanism 20 is disposed between the movable platen 13 and the rear platen 15. The toggle mechanism 20 is composed of a crosshead 20a, a plurality of links 20b, 20c, and the like. to make. One of the links 20b is swingably attached to the movable platen 13, and the other link 20c is swingably attached to the rear platen 15. The links 20b and 20c are coupled to each other by a pin or the like so as to be expandable and contractible. By advancing and retracting the crosshead 20a, the plurality of links 20b, 20c expand and contract, and the movable platen 13 advances and retracts relative to the rear platen 15.

合模馬達21安裝於後壓板15，並藉由使十字頭20a進退來使可動壓板13進退。合模馬達21與十字頭20a之間設有將合模馬達21的旋轉運動轉換為直線運動而傳遞至十字頭20a的運動轉換機構。運動轉換機構例如由滾珠絲杠機構構成。 The mold clamping motor 21 is attached to the rear platen 15, and the movable platen 13 is advanced and retracted by advancing and retracting the crosshead 20a. Between the mold clamping motor 21 and the crosshead 20a, a motion conversion mechanism that converts the rotational motion of the mold clamping motor 21 into a linear motion and transmits it to the crosshead 20a is provided. The motion conversion mechanism is constituted by, for example, a ball screw mechanism.

合模裝置10的動作由控制器90控制。控制器90控制閉模製程、合模製程及開模製程等。 The action of the mold clamping device 10 is controlled by the controller 90. The controller 90 controls the mold closing process, the mold clamping process, and the mold opening process.

閉模製程中，藉由驅動合模馬達21來使可動壓板13前進，從而使可動模33與固定模32接觸。 In the mold closing process, the movable platen 13 is advanced by driving the mold clamping motor 21, thereby bringing the movable mold 33 into contact with the fixed mold 32.

合模製程中，藉由進一步驅動合模馬達21來產生合模力。合模時在可動模33與固定模32之間形成模穴空間，模穴空間中可填充液態的成型材料。模穴空間內的成型材料被固化而成為成型品。 In the mold clamping process, the mold clamping force is generated by further driving the mold clamping motor 21. When the mold is closed, a cavity space is formed between the movable mold 33 and the fixed mold 32, and the cavity space can be filled with a liquid molding material. The molding material in the cavity space is solidified to become a molded article.

開模製程中，藉由驅動合模馬達21來使可動壓板13後退，從而使可動模33與固定模32分開。 In the mold opening process, the movable mold plate 13 is retracted by driving the mold clamping motor 21, thereby separating the movable mold 33 from the fixed mold 32.

另外，本實施形態的合模裝置10中，作為使可動壓板13移動之驅動源而具有合模馬達21，但可以代替合模馬達21而具有液壓缸。並且，合模裝置10可以具有模開閉用的線性馬達，亦可以具有合模用的電磁鐵。 In the mold clamping device 10 of the present embodiment, the mold clamping motor 21 is provided as a drive source for moving the movable platen 13, but a hydraulic cylinder may be provided instead of the mold clamping motor 21. Further, the mold clamping device 10 may have a linear motor for mold opening and closing, or may have an electromagnet for mold clamping.

第3圖係表示一實施形態的射出成形機的繫桿的位置關係的圖，且為從可動壓板側觀察固定壓板的圖。射出成形機具有四個繫桿16。從模開閉方向觀察時，四個繫桿16以水平線L1為中心上下對稱地配設，且以鉛垂線L2為中心左右對稱地配設。將比水平線L1更靠上側稱作頂側，將比水線L1更靠下側稱作底側。並且，將比鉛垂線L2更靠操作裝置70側稱作操作側，將比鉛垂線L2更靠操作裝置70的相反側稱作操作側相反側。 Fig. 3 is a view showing the positional relationship of the tie bars of the injection molding machine according to the embodiment, and is a view of the fixed pressure plate as seen from the movable platen side. The injection molding machine has four tie bars 16. When viewed from the mold opening and closing direction, the four tie bars 16 are arranged vertically symmetrically about the horizontal line L1, and are disposed symmetrically about the vertical line L2. The upper side than the horizontal line L1 is referred to as the top side, and the lower side than the water line L1 is referred to as the bottom side. Further, the side closer to the operation device 70 than the vertical line L2 is referred to as the operation side, and the side opposite to the operation device 70 from the vertical line L2 is referred to as the opposite side of the operation side.

合模力分散施加於四個繫桿16，從而各繫桿16延伸。將抵抗各繫桿16的延伸之力稱作軸向力。四個繫桿16的有效長度有差異時，在有效長度較短的繫桿16與有效長度較長的繫桿16之間產生軸向力之差。在此，繫桿16的有效長度係指藉由繫桿16連結之固定壓板12與後壓板15之間的間隔，例如可在合模力不發揮功能的狀態下測量。 The clamping force is applied to the four tie bars 16 such that the tie bars 16 extend. The force that resists the extension of each tie rod 16 is referred to as an axial force. When there is a difference in the effective lengths of the four tie bars 16, a difference in axial force is generated between the tie bars 16 having a shorter effective length and the tie bars 16 having a longer effective length. Here, the effective length of the tie rod 16 refers to the interval between the fixed platen 12 and the rear platen 15 joined by the tie rod 16, and can be measured, for example, in a state where the mold clamping force does not function.

藉由調整繫桿16的有效長度，能夠調整軸向力的平衡。軸向力的平衡以例如在合模時固定模32與可動模33的表面壓力成為目標的分佈的方式設定。目標的分佈可以是均勻分佈及不均勻分佈的任一方，可以根據情況設定。能夠減少成型不良。 By adjusting the effective length of the tie rod 16, the balance of the axial force can be adjusted. The balance of the axial force is set, for example, such that the surface pressure of the fixed mold 32 and the movable mold 33 becomes a target distribution at the time of mold clamping. The distribution of the target may be either one of uniform distribution and uneven distribution, and may be set according to circumstances. Can reduce molding defects.

由於繫桿16由金屬材料形成，因此繫桿16的有效長度會因繫桿16的溫度而發生變化。繫桿16的溫度越高，繫桿16的有效長度越長。藉由調節繫桿16的溫度，能夠調整繫桿16的有效長度，並能夠調整軸向力的平衡。 Since the tie rod 16 is formed of a metallic material, the effective length of the tie rod 16 may vary due to the temperature of the tie rod 16. The higher the temperature of the tie rod 16, the longer the effective length of the tie rod 16. By adjusting the temperature of the tie rod 16, the effective length of the tie rod 16 can be adjusted and the balance of the axial force can be adjusted.

因此，如第1圖及第2圖所示，各繫桿16上安裝有軸向力檢測器22、溫度調節器23及溫度檢測器24等。合模裝置10具備軸向力檢測器22、溫度調節器23及溫度檢測器24等。 Therefore, as shown in FIGS. 1 and 2, the axial force detector 22, the temperature adjuster 23, the temperature detector 24, and the like are attached to the respective tie bars 16. The mold clamping device 10 includes an axial force detector 22, a temperature adjuster 23, a temperature detector 24, and the like.

軸向力檢測器22檢測繫桿16的軸向力。軸向力檢測器22例如為應變儀式，藉由檢測繫桿16的應變來檢測繫桿16的軸向力。軸向力檢測器22將檢測結果輸出至控制器90。 The axial force detector 22 detects the axial force of the tie rod 16. The axial force detector 22 is, for example, a strain ritual, and the axial force of the tie rod 16 is detected by detecting the strain of the tie rod 16. The axial force detector 22 outputs the detection result to the controller 90.

控制器90設定繫桿16的溫度，以使軸向力的平衡的實際值成為設定值。對於該設定方法容後敘述。 The controller 90 sets the temperature of the tie rod 16 so that the actual value of the balance of the axial force becomes the set value. The setting method will be described later.

另外，上述實施形態的軸向力檢測器22雖然為應變儀式，但亦可以為壓電式、電容式、液壓式、電磁式等。 Further, although the axial force detector 22 of the above embodiment is a strain ceremony, it may be a piezoelectric type, a capacitive type, a hydraulic type, an electromagnetic type or the like.

溫度調節器23調節繫桿16的溫度。將繫桿16之藉由溫度調節器23來調節溫度的部分稱作溫度調節部。溫度調節器23例如包含暖氣機等加熱器，並藉由加熱來調節繫桿16的溫度調節部的溫度。 The temperature regulator 23 adjusts the temperature of the tie rod 16. The portion of the tie rod 16 whose temperature is adjusted by the temperature regulator 23 is referred to as a temperature adjustment portion. The temperature regulator 23 includes, for example, a heater such as a heater, and adjusts the temperature of the temperature adjustment portion of the tie rod 16 by heating.

另外，溫度調節器23可以包含水冷護套等冷卻器，並藉由冷卻來調節繫桿16的溫度調節部的溫度。溫度調節器23可以包含加熱器與冷卻器這兩者。 Further, the temperature regulator 23 may include a cooler such as a water-cooled jacket, and adjusts the temperature of the temperature adjusting portion of the tie rod 16 by cooling. The temperature regulator 23 can include both a heater and a cooler.

控制器90控制溫度調節器23，以使繫桿16的溫度調節部的溫度的實際值成為設定值。控制可以為反饋控制及前饋控制的任一方。 The controller 90 controls the temperature adjuster 23 so that the actual value of the temperature of the temperature adjusting portion of the tie rod 16 becomes a set value. Control can be either feedback control or feedforward control.

但是，若對一個繫桿16的溫度調節部的溫度進行設定變更來調整其有效長度，則合模力之分散狀態發生變 化，且所有的繫桿的軸向力可能發生變化。並且，若對一個繫桿16的溫度調節部的溫度進行設定變更，則因熱的移動，其他繫桿的溫度可能發生變化。 However, if the temperature of the temperature adjustment unit of one of the tie bars 16 is changed and the effective length is adjusted, the dispersion state of the mold clamping force changes. The axial force of all the tie rods may change. Further, when the temperature of the temperature adjustment unit of one of the tie bars 16 is changed, the temperature of the other tie bars may change due to the movement of heat.

因此，控制器90管理軸向力的平衡，來代替個別管理各繫桿16之軸向力。藉此，雖然詳細內容容後敘述，但可輔助調整軸向力的平衡。 Therefore, the controller 90 manages the balance of the axial forces instead of individually managing the axial forces of the respective tie bars 16. Therefore, although the details will be described later, it is possible to assist in adjusting the balance of the axial force.

另外，控制器90可以管理軸向力的平衡，並且個別管理各軸向力。 Additionally, the controller 90 can manage the balance of axial forces and manage each axial force individually.

控制器90連接於操作裝置70及顯示裝置80。操作裝置70及顯示裝置80例如可由觸控面板構成，且被一體化。操作裝置70接受由用戶進行之輸入操作，並將與輸入操作相應的訊號輸出至控制器90。顯示裝置80在控制器90的控制下，顯示與操作裝置70中的輸入操作相應的操作畫面。操作畫面可使用於射出成形機的設定等。準備複數個操作畫面來進行切換顯示或重疊顯示。用戶藉由一邊觀察顯示裝置80所顯示的操作畫面一邊對操作裝置70加以操作來進行射出成形機的設定等。 The controller 90 is connected to the operating device 70 and the display device 80. The operation device 70 and the display device 80 can be constituted by, for example, a touch panel and integrated. The operation device 70 accepts an input operation by the user, and outputs a signal corresponding to the input operation to the controller 90. The display device 80 displays an operation screen corresponding to the input operation in the operation device 70 under the control of the controller 90. The operation screen can be used for settings of the injection molding machine and the like. A plurality of operation screens are prepared to perform switching display or overlapping display. The user operates the operation device 70 while observing the operation screen displayed on the display device 80 to set the injection molding machine and the like.

另外，本實施形態的操作裝置70及顯示裝置80被一體化，但亦可以獨立設置。並且，操作裝置70可以設置有複數個。 Further, although the operation device 70 and the display device 80 of the present embodiment are integrated, they may be provided independently. Also, the operating device 70 may be provided in plural.

第4圖係表示一實施形態的射出成形機的操作畫面的圖。操作畫面具有軸向力平衡顯示部82。軸向力平衡顯示部82顯示軸向力的平衡。因此，與個別顯示各軸向力的情況相比，用戶更容易掌握並容易調整固定模32與可 動模33的表面壓力分佈。在此，軸向力的平衡係指軸向力的偏差狀態，例如可以用軸向力之差來表示。軸向力之差可以用相對於軸向力的平均的比例(%)來表示。 Fig. 4 is a view showing an operation screen of the injection molding machine of the embodiment. The operation screen has an axial force balance display portion 82. The axial force balance display portion 82 displays the balance of the axial force. Therefore, it is easier for the user to grasp and easily adjust the fixed mold 32 and the comparison with the case where the individual axial forces are individually displayed. The surface pressure distribution of the movable mold 33. Here, the balance of the axial force refers to the deviation state of the axial force, and can be expressed, for example, by the difference in the axial force. The difference in axial force can be expressed as an average ratio (%) with respect to the axial force.

另外，操作畫面還可以具有個別顯示各軸向力的軸向力顯示部。 Further, the operation screen may have an axial force display portion that individually displays each axial force.

軸向力平衡顯示部82具有水平軸向力平衡顯示部83及鉛垂軸向力平衡顯示部84。水平軸向力平衡顯示部83及鉛垂軸向力平衡顯示部84可以同時顯示於操作畫面。能夠辨識兩個方向的平衡。 The axial force balance display unit 82 has a horizontal axial force balance display unit 83 and a vertical axial force balance display unit 84. The horizontal axial force balance display unit 83 and the vertical axial force balance display unit 84 can be simultaneously displayed on the operation screen. Ability to recognize the balance in both directions.

水平軸向力平衡顯示部83顯示水平方向上的軸向力的平衡(以下，亦可以稱作水平軸向力平衡)。水平軸向力平衡例如以操作側的兩個繫桿16的軸向力的平均值與操作側相反側的兩個繫桿16的軸向力的平均值之差來表示。該差可以用相對於所有的軸向力的平均值的比例(%)來表示。用比例表示的情況，不會因合模力的大小而變動。 The horizontal axial force balance display portion 83 displays the balance of the axial force in the horizontal direction (hereinafter, may also be referred to as horizontal axial force balance). The horizontal axial force balance is expressed, for example, by the difference between the average value of the axial forces of the two tie bars 16 on the operating side and the average of the axial forces of the two tie bars 16 on the opposite side of the operating side. This difference can be expressed as a ratio (%) with respect to the average value of all axial forces. The case of the proportional expression does not vary depending on the size of the clamping force.

若將水平軸向力平衡的數值設為Nh(%)，則操作側的軸向力的平均值成為100+Nh/2(%)，操作側相反側的軸向力的平均值成為100-Nh/2(%)。水平軸向力平衡的數值Nh為正係指操作側的軸向力的平均值大於操作側相反側的軸向力的平均值。另一方面，水平軸向力平衡的數值Nh為負係指操作側的軸向力的平均值小於操作側相反側的軸向力的平均值。 When the value of the horizontal axial force balance is Nh (%), the average value of the axial force on the operation side becomes 100 + Nh / 2 (%), and the average value of the axial force on the opposite side of the operation side becomes 100 - Nh/2 (%). The numerical value Nh of the horizontal axial force balance is positive means that the average value of the axial force on the operation side is larger than the average value of the axial force on the opposite side of the operation side. On the other hand, the numerical value Nh of the horizontal axial force balance is negative means that the average value of the axial force on the operation side is smaller than the average value of the axial force on the opposite side of the operation side.

另外，水平軸向力平衡的數值的正負、與操作側的軸 向力及操作側相反側的軸向力的大小之間的關係可以相反。 In addition, the positive and negative values of the horizontal axial force balance and the axis on the operating side The relationship between the force force and the magnitude of the axial force on the opposite side of the operating side may be reversed.

水平軸向力平衡顯示部83具有設定值顯示部83a及實際值顯示部83b。設定值顯示部83a顯示水平軸向力平衡的設定值。實際值顯示部83b顯示水平軸向力平衡的實際值。設定值顯示部83a與實際值顯示部83b可以同時顯示於操作畫面。能夠辨識設定值與實際值的偏差。 The horizontal axial force balance display unit 83 has a set value display unit 83a and an actual value display unit 83b. The set value display unit 83a displays the set value of the horizontal axial force balance. The actual value display portion 83b displays the actual value of the horizontal axial force balance. The set value display unit 83a and the actual value display unit 83b can be simultaneously displayed on the operation screen. It is possible to recognize the deviation between the set value and the actual value.

用戶藉由一邊觀察操作畫面一邊對操作裝置70加以操作，將水平軸向力平衡的設定值輸入至設定值顯示部83a。控制器90設定繫桿16的溫度，以使水平軸向力平衡的實際值成為設定值。 The user operates the operation device 70 while observing the operation screen, and inputs the set value of the horizontal axial force balance to the set value display unit 83a. The controller 90 sets the temperature of the tie rod 16 so that the actual value of the horizontal axial force balance becomes the set value.

鉛垂軸向力平衡顯示部84顯示鉛垂方向上的軸向力的平衡(以下，亦可以稱作鉛垂軸向力平衡)。鉛垂軸向力平衡例如以頂側的兩個繫桿16的軸向力的平均值與底側的兩個繫桿16的軸向力的平均值之差來表示。該差可以用相對於所有的軸向力的平均值的比例(%)來表示。用比例表示的情況，不會因合模力的大小而變動。 The vertical axial force balance display portion 84 displays the balance of the axial force in the vertical direction (hereinafter, it may also be referred to as a vertical axial force balance). The vertical axial force balance is expressed, for example, by the difference between the average value of the axial forces of the two tie bars 16 on the top side and the average value of the axial forces of the two tie bars 16 on the bottom side. This difference can be expressed as a ratio (%) with respect to the average value of all axial forces. The case of the proportional expression does not vary depending on the size of the clamping force.

若將鉛垂軸向力平衡的數值設為Nv(%)，則頂側的軸向力的平均值成為100+Nv/2(%)，底側的軸向力的平均值成為100-Nv/2(%)。鉛垂軸向力平衡的數值Nv為正係指頂側的軸向力的平均值大於底側的軸向力的平均值。另一方面，鉛垂軸向力平衡的數值Nv為負係指頂側的軸向力的平均值小於底側的軸向力的平均值。 When the value of the vertical axial force balance is Nv (%), the average value of the axial force on the top side becomes 100 + Nv / 2 (%), and the average value of the axial force on the bottom side becomes 100 - Nv. /2(%). The value of the vertical axial force balance Nv is the average of the axial force of the positive side of the positive side and the average of the axial force of the bottom side. On the other hand, the numerical value Nv of the vertical axial force balance is that the average value of the axial force on the negative side is smaller than the average value of the axial force on the bottom side.

另外，鉛垂軸向力平衡的數值的正負、與頂側的軸向 力及底側的軸向力的大小之間的關係可以相反。 In addition, the positive and negative values of the vertical axial force balance and the axial direction of the top side The relationship between the force and the magnitude of the axial force on the bottom side can be reversed.

鉛垂軸向力平衡顯示部84具有設定值顯示部84a及實際值顯示部84b。設定值顯示部84a顯示鉛垂軸向力平衡的設定值。實際值顯示部84b顯示鉛垂軸向力平衡的實際值。設定值顯示部84a與實際值顯示部84b可以同時顯示於操作畫面。能夠辨識設定值與實績值的偏差。 The vertical axial force balance display unit 84 has a set value display unit 84a and an actual value display unit 84b. The set value display unit 84a displays the set value of the vertical axial force balance. The actual value display portion 84b displays the actual value of the vertical axial force balance. The set value display unit 84a and the actual value display unit 84b can be simultaneously displayed on the operation screen. It is possible to recognize the deviation between the set value and the actual value.

用戶藉由一邊觀察操作畫面一邊對操作裝置70加以操作，將鉛垂軸向力平衡的設定值輸入至設定值顯示部84a。控制器90設定繫桿16的溫度，以使鉛垂軸向力平衡的實際值成為設定值。 The user operates the operation device 70 while observing the operation screen, and inputs the set value of the vertical axial force balance to the set value display unit 84a. The controller 90 sets the temperature of the tie rod 16 so that the actual value of the vertical axial force balance becomes the set value.

第5圖係表示一實施形態的控制器的圖。如第5圖所示，控制器90依據軸向力的平衡的設定值等，計算作為改變軸向力之操作量的繫桿16的溫度調節部的溫度的設定值。 Fig. 5 is a view showing a controller of an embodiment. As shown in Fig. 5, the controller 90 calculates the set value of the temperature of the temperature adjusting portion of the tie rod 16 which is the amount of operation for changing the axial force, based on the set value of the balance of the axial force or the like.

控制器90具有軸向力設定部101、軸向力測量部102、非干涉運算部103、溫度設定部104、溫度測量部105及調溫指令部106。 The controller 90 includes an axial force setting unit 101, an axial force measuring unit 102, a non-interference calculating unit 103, a temperature setting unit 104, a temperature measuring unit 105, and a temperature adjustment command unit 106.

軸向力設定部101求出軸向力的平衡的設定值。例如軸向力設定部101利用操作畫面獲取水平軸向力平衡的設定值及鉛垂軸向力平衡的設定值。軸向力的平衡可以用軸向力的偏差狀態，例如軸向力之差來表示。軸向力之差可以用相對於軸向力的平均的比例(%)來表示。用比例表示的情況，不會因合模力的大小而變動。 The axial force setting unit 101 obtains a set value of the balance of the axial forces. For example, the axial force setting unit 101 acquires the set value of the horizontal axial force balance and the set value of the vertical axial force balance using the operation screen. The balance of the axial forces can be expressed by the deviation of the axial forces, such as the difference in axial forces. The difference in axial force can be expressed as an average ratio (%) with respect to the axial force. The case of the proportional expression does not vary depending on the size of the clamping force.

軸向力測量部102利用軸向力檢測器22來測量各繫 桿16的軸向力的實際值。 The axial force measuring unit 102 measures each system using the axial force detector 22 The actual value of the axial force of the rod 16.

非干涉運算部103依據軸向力測量部102的測量結果，求出軸向力的平衡的實際值。例如非干涉運算部103計算水平軸向力平衡的實際值及鉛垂軸向力平衡的實際值。 The non-interference calculation unit 103 obtains the actual value of the balance of the axial force based on the measurement result of the axial force measurement unit 102. For example, the non-interference calculation unit 103 calculates the actual value of the horizontal axial force balance and the actual value of the vertical axial force balance.

溫度設定部104依據軸向力的平衡的設定值等(第5圖中為設定值與實際值之差)，計算各繫桿16的溫度調節部的溫度的設定值。與依據各軸向力的設定值來進行該計算之情況相比，更容易處理一個繫桿16的溫度調節部的溫度的設定變更對另一繫桿16的軸向力帶來之影響，並且容易設定各繫桿16的溫度調節部的溫度。另外，雖然詳細內容容後敘述，但可以使用軸向力的平衡的推測值來代替軸向力的平衡的實際值。 The temperature setting unit 104 calculates the set value of the temperature of the temperature adjustment unit of each of the tie bars 16 based on the set value of the balance of the axial force and the like (the difference between the set value and the actual value in FIG. 5). It is easier to handle the influence of the setting change of the temperature of the temperature adjusting portion of one of the tie bars 16 on the axial force of the other tie rod 16 than the case where the calculation is performed based on the set values of the respective axial forces, and It is easy to set the temperature of the temperature adjustment portion of each tie rod 16. Further, although the details will be described later, the estimated value of the balance of the axial force may be used instead of the actual value of the balance of the axial force.

溫度設定部104例如可以將操作側且頂側的繫桿16的溫度調節部的溫度設為T0+Th+Tv、操作側且底側的繫桿16的溫度調節部的溫度設為T0+Th-Tv、操作側相反側且頂側的繫桿16的溫度調節部的溫度設為T0-Th+Tv、操作側相反側且底側的繫桿16的溫度調節部的溫度設為T0-Th-Tv，並設定T0(℃)、Th(℃)、Tv(℃)。T0表示所有繫桿16的溫度調節部的溫度的平均值(℃)、Th表示水平方向上的溫度調節部的溫度的平 衡(差)、Tv表示鉛垂方向上的溫度調節部的溫度的平衡(差)。 For example, the temperature setting unit 104 can set the temperature of the temperature adjustment unit of the operation side and the top side tie rod 16 to T0+Th+Tv, and the temperature of the temperature adjustment unit of the operation side and the bottom side tie rod 16 to T0+Th. -Tv, the temperature of the temperature adjustment portion of the tie rod 16 on the opposite side of the operation side and the top side is T0-Th+Tv, the temperature of the temperature adjustment portion of the tie rod 16 on the side opposite to the operation side and the bottom side is T0-Th -Tv, and set T0 (°C), Th (°C), and Tv (°C). T0 represents the average value (°C) of the temperatures of the temperature adjustment sections of all the tie bars 16, and Th represents the flatness of the temperature of the temperature adjustment sections in the horizontal direction. The balance (difference) and Tv indicate the balance (difference) of the temperature of the temperature adjustment unit in the vertical direction.

溫度設定部104可以依據作為操作量的繫桿16的溫度調節部的溫度的設定變更對軸向力的平衡帶來之影響，計算各繫桿16的溫度調節部的溫度的設定值。能夠考慮到一個繫桿16的溫度調節部的溫度的設定變更對另一個繫桿16的軸向力帶來之影響。上述影響可藉由實驗或模擬預先求出，並讀出儲存於記憶媒體92的影響來進行使用。上述影響可以藉由式子或表格等的形態儲存於記憶媒體92。 The temperature setting unit 104 can calculate the influence of the temperature of the temperature adjustment unit of the tie rod 16 as the operation amount on the balance of the axial force, and calculate the set value of the temperature of the temperature adjustment unit of each of the tie bars 16. It is possible to consider the influence of the setting change of the temperature of the temperature adjusting portion of one of the tie bars 16 on the axial force of the other tie rod 16. The above effects can be obtained in advance by experiments or simulations, and the effects stored in the memory medium 92 are read and used. The above effects can be stored in the memory medium 92 in the form of a formula or a table.

溫度測量部105利用溫度檢測器24來測量繫桿16的溫度調節部的溫度的實際值。 The temperature measuring unit 105 measures the actual value of the temperature of the temperature adjusting unit of the tie rod 16 by the temperature detector 24.

調溫指令部106依據繫桿16的溫度調節部的溫度的設定值等(第5圖中為設定值與實際值之差)，生成對各溫度調節器23的指令。 The temperature adjustment command unit 106 generates a command for each temperature adjuster 23 based on the set value of the temperature of the temperature adjustment unit of the tie rod 16 or the like (the difference between the set value and the actual value in FIG. 5).

如以上說明，控制器90依據軸向力的平衡的設定值等，計算作為改變軸向力之操作量的繫桿16的溫度調節部的溫度的設定值。按每個繫桿16計算該設定值。控制器90依據所計算的設定值等，生成溫度調節器23的指令。按每個溫度調節器23生成該指令。 As described above, the controller 90 calculates the set value of the temperature of the temperature adjustment unit of the tie rod 16 as the operation amount for changing the axial force, based on the set value of the balance of the axial force or the like. The set value is calculated for each tie rod 16. The controller 90 generates an instruction of the temperature adjuster 23 based on the calculated set value or the like. This command is generated for each temperature regulator 23.

但是，繫桿16的溫度調節部的溫度的實際值成為設定值為止需要時間。並且，該實際值穩定成設定值之後，合模裝置10整體的溫度分佈得到穩定為止也需要時間。而且，軸向力的實際值只能在合模時測量，無法經常測 量。 However, it takes time until the actual value of the temperature of the temperature adjustment unit of the tie rod 16 becomes the set value. Further, after the actual value is stabilized to the set value, it takes time until the temperature distribution of the entire mold clamping device 10 is stabilized. Moreover, the actual value of the axial force can only be measured at the time of clamping, and cannot be measured frequently. the amount.

因此，控制器90可以具有軸向力推測部107(參閱第6圖)。軸向力推測部107依據作為改變軸向力之操作量的繫桿16的溫度調節部的溫度來推測軸向力。 Therefore, the controller 90 can have an axial force estimating portion 107 (refer to Fig. 6). The axial force estimating unit 107 estimates the axial force based on the temperature of the temperature adjusting unit of the tie rod 16 which is an operation amount for changing the axial force.

控制器90在無法藉由第5圖所示之軸向力測量部102測量軸向力的實際值的期間，亦可利用軸向力的推測值來代替軸向力的實際值來適當地控制溫度調節器23。因此，能夠縮短繫桿16的軸向力得到穩定為止的時間。 The controller 90 may appropriately control the actual value of the axial force by the axial force measuring unit 102 shown in Fig. 5, instead of using the estimated value of the axial force instead of the actual value of the axial force. Temperature regulator 23. Therefore, the time until the axial force of the tie rod 16 is stabilized can be shortened.

例如，如第6圖所示，軸向力推測部107具有軸向力運算部108及運算校正部109。 For example, as shown in FIG. 6, the axial force estimating unit 107 includes an axial force calculating unit 108 and an arithmetic correcting unit 109.

軸向力運算部108依據作為改變軸向力之操作量的繫桿16的溫度調節部的溫度來計算軸向力。在計算軸向力時，軸向力運算部108可以利用上述溫度調節部的溫度的實際值。 The axial force calculating unit 108 calculates the axial force based on the temperature of the temperature adjusting portion of the tie rod 16 which is an operation amount for changing the axial force. When the axial force is calculated, the axial force calculating unit 108 can use the actual value of the temperature of the temperature adjusting unit.

另外，在計算軸向力時，本實施形態的軸向力運算部108是利用上述溫度調節部的溫度的實際值，但亦可以利用上述溫度調節部的溫度的設定值。 Further, when the axial force is calculated, the axial force calculating unit 108 of the present embodiment uses the actual value of the temperature of the temperature adjusting unit. However, the temperature setting value of the temperature adjusting unit may be used.

在計算軸向力時，軸向力運算部108例如利用有限元素法(Finite Element Method)。依有限元素法，能夠計算合模裝置10的溫度分佈的時間變化，並能夠計算各軸向力。 When calculating the axial force, the axial force calculation unit 108 uses, for example, a Finite Element Method. According to the finite element method, the time variation of the temperature distribution of the mold clamping device 10 can be calculated, and each axial force can be calculated.

另外，在計算軸向力時，本實施形態的軸向力運算部108是利用有限元素法，但亦可以利用熱擴散方程式等為基礎而製作之傳熱模型。計算軸向力時利用比熱、熱傳遞 率等。 Further, when the axial force is calculated, the axial force calculating unit 108 of the present embodiment uses the finite element method, but a heat transfer model based on a thermal diffusion equation or the like may be used. Use specific heat and heat transfer when calculating axial force Rate and so on.

軸向力運算部108可以計算軸向力的當前值(瞬時值)，亦可以計算過渡狀態之軸向力。在此，過渡狀態係指從溫度調節器23的控制開始直至合模裝置10整體的溫度分佈得到穩定為止的狀態。 The axial force calculating unit 108 can calculate the current value (instantaneous value) of the axial force, and can also calculate the axial force of the transient state. Here, the transient state refers to a state from the start of the control of the temperature regulator 23 until the temperature distribution of the entire mold clamping device 10 is stabilized.

另外，當前值並不限於過渡狀態下的值，亦可以為穩定狀態下的值。在此，穩定狀態係指繫桿16的溫度調節部的溫度的實際值穩定成設定值，並且，合模裝置10整體的溫度分佈穩定的狀態。 In addition, the current value is not limited to the value in the transient state, and may be a value in the steady state. Here, the steady state means that the actual value of the temperature of the temperature adjusting portion of the tie rod 16 is stabilized to a set value, and the temperature distribution of the entire mold clamping device 10 is stabilized.

軸向力運算部108例如可以計算軸向力之未來值(例如穩定值)來代替軸向力的當前值。 The axial force calculating unit 108 can calculate, for example, a future value (for example, a stable value) of the axial force instead of the current value of the axial force.

軸向力運算部108可以具有第5圖所示之非干涉運算部103的功能，亦可以計算軸向力的平衡。軸向力的平衡可以用軸向力的偏差狀態，例如軸向力之差來表示。軸向力之差可以用相對於軸向力的平均的比例(%)來表示。用比例表示的情況，不會因合模力的大小而變動。 The axial force calculation unit 108 may have the function of the non-interference calculation unit 103 shown in Fig. 5, and may calculate the balance of the axial force. The balance of the axial forces can be expressed by the deviation of the axial forces, such as the difference in axial forces. The difference in axial force can be expressed as an average ratio (%) with respect to the axial force. The case of the proportional expression does not vary depending on the size of the clamping force.

軸向力運算部108例如計算水平軸向力平衡及鉛垂軸向力平衡。控制器90能夠同時調整兩個方向上之平衡。另外，控制器90可以僅調整任一方向的軸向力的平衡，且軸向力運算部108可以僅計算任一方向的軸向力的平衡。 The axial force calculation unit 108 calculates, for example, a horizontal axial force balance and a vertical axial force balance. The controller 90 is capable of adjusting the balance in both directions simultaneously. In addition, the controller 90 may adjust only the balance of the axial force in either direction, and the axial force calculating unit 108 may calculate only the balance of the axial force in either direction.

運算校正部109依據軸向力的實際值，校正藉由軸向力運算部108計算之軸向力的計算值。藉此，能夠提高藉由軸向力推測部107的軸向力的推測精度。 The calculation correcting unit 109 corrects the calculated value of the axial force calculated by the axial force calculating unit 108 based on the actual value of the axial force. Thereby, the estimation accuracy of the axial force by the axial force estimating unit 107 can be improved.

運算校正部109例如計算加在軸向力運算部108的輸入值的補償值。運算校正部109依據合模時所測量之軸向力的實際值與軸向力的計算值之間的差值，計算溫度的補償值。藉由將該溫度的補償值加在溫度的實際值，能夠校正軸向力的計算值。該溫度的補償值可以使用到測量下一次的軸向力的實際值為止，亦可以每次測量軸向力的實際值時進行更新。 The calculation correcting unit 109 calculates, for example, a compensation value added to the input value of the axial force calculating unit 108. The calculation correcting unit 109 calculates the compensation value of the temperature based on the difference between the actual value of the axial force measured at the time of mold clamping and the calculated value of the axial force. The calculated value of the axial force can be corrected by adding the compensation value of the temperature to the actual value of the temperature. The compensation value for this temperature can be used until the actual value of the next axial force is measured, or it can be updated each time the actual value of the axial force is measured.

另外，本實施形態的運算校正部109計算加在軸向力運算部108的輸入值的補償值，但亦可以計算加在軸向力運算部108的輸出值的補償值。 Further, the arithmetic correction unit 109 of the present embodiment calculates the compensation value of the input value added to the axial force calculation unit 108, but may calculate the compensation value added to the output value of the axial force calculation unit 108.

以上，對射出成形機的實施形態等進行了說明，但本發明並不限定於上述實施形態等，在申請專利範圍中所記載之本發明的宗旨的範圍內，可進行各種變形及改良。 In the above, the embodiment of the injection molding machine has been described. However, the present invention is not limited to the above-described embodiments and the like, and various modifications and improvements can be made within the scope of the gist of the invention described in the claims.

例如上述實施形態中，軸向力檢測器22、溫度調節器23及溫度檢測器24安裝於所有的繫桿16，但可以僅安裝於一部分繫桿16。例如，控制器90調整鉛垂軸向力平衡與水平軸向力平衡這兩者的情況下，可以在四個繫桿16中的僅三個上安裝有溫度調節器23及溫度檢測器24。並且，控制器90僅調整鉛垂軸向力平衡的情況下，可以在頂側及底側中的僅一側的繫桿16上安裝有溫度調節器23及溫度檢測器24。並且，控制器90僅調整鉛垂軸向力平衡的情況下，可以在頂側的兩個繫桿16中的一方、及底側的兩個繫桿16中的一方分別安裝有軸向力檢測器22。 For example, in the above embodiment, the axial force detector 22, the temperature adjuster 23, and the temperature detector 24 are attached to all of the tie bars 16, but may be attached to only a part of the tie bars 16. For example, in the case where the controller 90 adjusts both the vertical axial force balance and the horizontal axial force balance, the temperature regulator 23 and the temperature detector 24 may be mounted on only three of the four tie bars 16. Further, when the controller 90 adjusts only the vertical axial force balance, the temperature adjuster 23 and the temperature detector 24 may be attached to only one of the top side and the bottom side. Further, when the controller 90 adjusts only the vertical axial force balance, axial force detection can be attached to one of the two tie bars 16 on the top side and one of the two tie bars 16 on the bottom side. Device 22.

並且，上述實施形態是用軸向力之差來表示軸向力的平衡，但亦可以用軸向力的比來表示。例如鉛垂軸向力平衡可以用頂側的軸向力的平均值與底側的軸向力的平均值之比來表示。同樣地，水平軸向力平衡可以用操作側的軸向力的平均值與操作側相反側的軸向力的平均值之比來表示。 Further, in the above embodiment, the balance of the axial force is expressed by the difference in the axial force, but it may be expressed by the ratio of the axial force. For example, the vertical axial force balance can be expressed by the ratio of the average of the axial forces on the top side to the average of the axial forces on the bottom side. Similarly, the horizontal axial force balance can be expressed by the ratio of the average of the axial forces on the operating side to the average of the axial forces on the opposite side of the operating side.

並且，上述實施形態的控制器90，作為改變軸向力之操作量而利用繫桿16的溫度，但亦可以利用繫桿16的有效長度。繫桿16的有效長度的調整例如可以使用形成於繫桿16的外螺紋41、螺合於外螺紋41的內螺紋42及使內螺紋42旋轉的旋轉馬達(未圖示)等。內螺紋42以不能進退且旋轉自如的方式安裝於後壓板15。控制器90藉由控制旋轉馬達的旋轉來調整繫桿16的有效長度。另外，內螺紋42可以安裝於繫桿16所連結之兩個構件(上述實施形態中為固定壓板12及後壓板15)中的任一方，亦可以安裝於雙方。作為改變軸向力之操作量，可以利用繫桿16的溫度及繫桿16的有效長度這兩者。繫桿16的溫度亦可以藉由對加熱繫桿16的暖氣機的供給電力的增減來調節。因此，可將對暖氣機的供給電力用來作為改變軸向力的操作量。 Further, the controller 90 of the above-described embodiment uses the temperature of the tie rod 16 as the amount of operation for changing the axial force, but the effective length of the tie rod 16 may be utilized. For the adjustment of the effective length of the tie rod 16, for example, an external thread 41 formed on the tie rod 16, an internal thread 42 screwed to the external thread 41, and a rotary motor (not shown) for rotating the internal thread 42 can be used. The internal thread 42 is attached to the rear platen 15 in such a manner that it cannot move forward and backward and is rotatable. The controller 90 adjusts the effective length of the tie rod 16 by controlling the rotation of the rotary motor. Further, the female screw 42 may be attached to either one of the two members (the fixed platen 12 and the rear platen 15 in the above embodiment) to which the tie rod 16 is coupled, or may be attached to both. As the amount of operation for changing the axial force, both the temperature of the tie rod 16 and the effective length of the tie rod 16 can be utilized. The temperature of the tie rod 16 can also be adjusted by increasing or decreasing the supply power to the heater of the heating tie rod 16. Therefore, the power supplied to the heater can be used as an operation amount for changing the axial force.

並且，上述實施形態的合模裝置10是模開閉方向為水平方向的臥式合模裝置，但亦可以是模開閉方向為鉛垂方向的立式合模裝置。立式合模裝置具有作為固定壓板的下壓板、作為可動壓板的上壓板、肘節座、肘節機構及繫 桿等。在下壓板安裝有下模，在上壓板安裝有上模。由下模及上模構成模具裝置。下模可以經由轉台安裝於下壓板。肘節座配設於下壓板的下方，並與上壓板一同升降。肘節機構配設於肘節座與下壓板之間。繫桿與鉛垂方向平行，並貫穿下壓板，從而連結上壓板與肘節座。繫桿的數量通常為三個。另外，繫桿的數量並無特別限定。 Further, the mold clamping device 10 of the above-described embodiment is a horizontal mold clamping device in which the mold opening and closing direction is horizontal, but a vertical mold clamping device in which the mold opening and closing direction is a vertical direction may be used. The vertical mold clamping device has a lower pressing plate as a fixed pressing plate, an upper pressing plate as a movable pressing plate, a toggle joint, a toggle mechanism and a system Rod and so on. A lower die is mounted on the lower platen, and an upper die is mounted on the upper platen. The mold device is composed of a lower mold and an upper mold. The lower die can be mounted to the lower platen via a turntable. The elbow seat is disposed below the lower platen and is raised and lowered together with the upper platen. The toggle mechanism is disposed between the toggle seat and the lower platen. The tie rod is parallel to the vertical direction and extends through the lower pressure plate to join the upper pressure plate and the toggle seat. The number of tie rods is usually three. In addition, the number of tie bars is not particularly limited.

101‧‧‧軸向力設定部 101‧‧‧Axial force setting unit

102‧‧‧軸向力測量部×4 102‧‧‧Axial force measurement department×4

103‧‧‧非干涉運算部 103‧‧‧Non-interference operation

104‧‧‧溫度設定部 104‧‧‧ Temperature setting department

105‧‧‧溫度測量部×4 105‧‧‧Temperature Measurement Department×4

106‧‧‧調溫指令部×4 106‧‧‧Temperature Command Department×4

Claims (9)

一種射出成形機，其特徵為具備：與合模力對應而延伸的複數個繫桿，及控制前述繫桿的軸向力的控制器，前述控制器依據前述軸向力的平衡的設定值，計算出改變前述軸向力的操作量的設定值。 An injection molding machine comprising: a plurality of tie bars extending in accordance with a clamping force; and a controller for controlling an axial force of the tie bars, wherein the controller is based on a set value of the balance of the axial force, The set value of the operation amount for changing the aforementioned axial force is calculated. 如申請專利範圍第1項所述之射出成形機，其中，前述控制器依據前述操作量的設定變更對前述軸向力的平衡帶來的影響，計算前述操作量的設定值。 The injection molding machine according to claim 1, wherein the controller changes an influence on the balance of the axial force in accordance with the setting of the operation amount, and calculates a set value of the operation amount. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器獲取前述軸向力的平衡的實際值，並依據前述軸向力的平衡的設定值及該實際值，計算前述操作量的設定值。 The injection molding machine according to claim 1 or 2, wherein the controller acquires an actual value of the balance of the axial force, and calculates the foregoing according to the set value of the balance of the axial force and the actual value. The set value of the operation amount. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器獲取前述軸向力的平衡的推測值，並依據前述軸向力的平衡的設定值及該推測值，計算前述操作量的設定值。 The injection molding machine according to claim 1 or 2, wherein the controller acquires an estimated value of the balance of the axial force, and calculates the foregoing according to the set value of the balance of the axial force and the estimated value. The set value of the operation amount. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器依據水平方向上的前述軸向力的平衡的設定值，計算前述操作量的設定值。 The injection molding machine according to claim 1 or 2, wherein the controller calculates the set value of the operation amount based on a set value of the balance of the axial force in the horizontal direction. 如申請專利範圍第1或2項所述之射出成形機，其 中，前述控制器依據鉛垂方向上的前述軸向力的平衡的設定值，計算前述操作量的設定值。 An injection molding machine as described in claim 1 or 2, wherein The controller calculates a set value of the operation amount based on a set value of the balance of the axial force in the vertical direction. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器利用前述軸向力之差作為前述軸向力的平衡。 The injection molding machine according to claim 1 or 2, wherein the controller uses the difference in axial force as a balance of the axial force. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器用相對於前述軸向力的平均的比例來表示前述軸向力之差。 The injection molding machine according to claim 1 or 2, wherein the controller indicates a difference in the axial force with respect to an average ratio of the axial forces. 如申請專利範圍第1或2項所述之射出成形機，其中，前述控制器利用前述繫桿的溫度、前述繫桿的長度及對加熱前述繫桿的暖氣機的供給電力中的至少一個作為前述操作量。 The injection molding machine according to claim 1 or 2, wherein the controller uses at least one of a temperature of the tie rod, a length of the tie rod, and a supply power to a heater that heats the tie rod. The aforementioned amount of operation.
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Publication number Priority date Publication date Assignee Title
CN104339595A (en) * 2013-07-26 2015-02-11 发那科株式会社 Tool-clamping-force measuring device of an injection molding machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60168622A (en) * 1984-02-13 1985-09-02 Sumitomo Heavy Ind Ltd Temperature pattern measuring device of resin of injection molding machine
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JP2004249637A (en) 2003-02-21 2004-09-09 Sumitomo Heavy Ind Ltd Automated clamping force regulating equipment for molding machine
JP2006347078A (en) * 2005-06-17 2006-12-28 Japan Steel Works Ltd:The Mold clamping device of injection molding machine and effective length regulating method of tie bar
JP2007136961A (en) * 2005-11-21 2007-06-07 Sumitomo Heavy Ind Ltd Injection apparatus and method for adjusting difference in axial force of a plurality of shafts installed in injection apparatus
JP4648870B2 (en) * 2006-04-20 2011-03-09 住友重機械工業株式会社 Mold clamping force control method and mold clamping device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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