JPH04107022U - Injection molding machine control device - Google Patents
Injection molding machine control deviceInfo
- Publication number
- JPH04107022U JPH04107022U JP1588891U JP1588891U JPH04107022U JP H04107022 U JPH04107022 U JP H04107022U JP 1588891 U JP1588891 U JP 1588891U JP 1588891 U JP1588891 U JP 1588891U JP H04107022 U JPH04107022 U JP H04107022U
- Authority
- JP
- Japan
- Prior art keywords
- screw
- screw rotation
- rotation speed
- resin
- cavity
- 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.)
- Withdrawn
Links
- 238000001746 injection moulding Methods 0.000 title claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 239000012778 molding material Substances 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】 （修正有）
【目的】 スクリュ回転速度を多段階に変化させて、金
型のキャビティへの樹脂の充填速度を可変に制御するこ
とにより、成形品の品質向上、複雑な形状の成形品の成
形を可能とする。
【構成】 インラインスクリュ式射出成形機においてス
クリュ回転により可塑化された成形材料を、シリンダ４
内に溜めることなく連続的にキャビティ１３に充填して
行く成形法における制御装置において、スクリュ１を回
転駆動する駆動装置２の油圧シリンダ６の油圧室に圧油
を供給する通路上に流量調整弁９を設け、同流量調整弁
９は制御機構１８からの信号により制御され、同制御機
構１８は複数個のスクリュ回転速度設定器と、スクリュ
回転時間設定器とを備えることにより、スクリュ回転速
度を多段階に変化させて金型１２のキャビティ１３の形
状に合致した樹脂の充填速度を可変にすることを特徴と
する。
(57) [Summary] (with modifications) [Purpose] By changing the screw rotation speed in multiple stages and variably controlling the filling speed of resin into the mold cavity, it is possible to improve the quality of molded products and solve complex problems. Enables molding of shaped products. [Structure] In an in-line screw injection molding machine, the molding material that has been plasticized by the rotation of the screw is transferred to the cylinder 4.
In a control device for a molding method in which a cavity 13 is continuously filled without accumulation, a flow rate regulating valve is installed on a passage that supplies pressure oil to a hydraulic chamber of a hydraulic cylinder 6 of a drive device 2 that rotationally drives a screw 1. The flow rate regulating valve 9 is controlled by a signal from a control mechanism 18, and the control mechanism 18 is equipped with a plurality of screw rotation speed setting devices and a screw rotation time setting device to adjust the screw rotation speed. It is characterized in that the filling speed of the resin that matches the shape of the cavity 13 of the mold 12 is made variable by changing it in multiple stages.
Description
【０００１】0001
本考案はインラインスクリュ式射出成形機において、スクリュの回転により可 塑化された成形材料を、シリンダ内に溜めることなく連続的にキャビティに充填 して行く成形法である、所謂イントルージョン成形法（フローモールディング） における制御装置に関するものである。 This invention is an in-line screw type injection molding machine that can be used by rotating the screw. Continuously fills the cavity with plasticized molding material without accumulating it inside the cylinder. The so-called intrusion molding method (flow molding) The present invention relates to a control device.
【０００２】0002
射出成形機において、金型のキャビティに樹脂を充填して成形する方法は、一 般的にはシリンダの先端に貯蔵した樹脂を、スクリュの回転をさせずにスクリュ の前進動作のみ、所謂射出動作のみで行うものであるが、１ショット当りの射出 容量が射出成形機の能力を超えるような場合は、前工程はスクリュ回転動作、後 工程は前記のスクリュの前進動作の２工程で金型のキャビティに樹脂を充填させ ることにより、射出成形機の射出容量能力以上の成形を行なう方法、所謂イント ルージョン成形方法（フローモールディング）がある。 In an injection molding machine, there is one method for filling the mold cavity with resin and molding. Generally, the resin stored at the tip of the cylinder is screwed without rotating the screw. It is performed only by the forward movement of the so-called injection movement, but the injection per shot If the capacity exceeds the capacity of the injection molding machine, the pre-process is a screw rotation operation, and the post-process is a screw rotation operation. The process involves filling the mold cavity with resin in two steps: the forward movement of the screw described above. This is a method of molding that exceeds the injection capacity of the injection molding machine by There is a fusion molding method (flow molding).
【０００３】0003
しかし前記イントルージョン成形におけるスクリュ回転速度Ｎとその時の回転 時間Ｔは、図４で示すように図示しない制御装置に具備されている１対のスクリ ュ回転速度設定器と、その時間設定器で予め設定された速度と時間でしか制御さ れないため、金型のキャビティに充填される時間当りの樹脂量は一定であり、本 来の金型のキャビティ形状に適応した最適条件で樹脂を充填することは出来ず、 成形品の形状によっては良品質の成形品を得ることは困難であった。 However, the screw rotation speed N in the intrusion molding and the rotation at that time As shown in FIG. 4, the time T is determined by a pair of screen It can only be controlled at the speed and time preset with the rotary speed setting device and its time setting device. Therefore, the amount of resin filled into the mold cavity per hour is constant, and the actual It is not possible to fill the resin with optimal conditions that suit the cavity shape of the existing mold. It has been difficult to obtain a molded product of good quality depending on the shape of the molded product.
【０００４】 要するに射出成形機で、通常金型のキャビティに樹脂を充填する場合には、射 出動作としてスクリュ前進速度、即ち射出速度の多段速度制御で、金型のキャビ ティ形状に適応した最適条件によって樹脂を充填するものであるが、イントルー ジョン成形の場合は、スクリュ回転で樹脂を金型キャビティに充填する工程では 前記の様な多段制御がなされないため、成形品の品質向上、複雑な形状の成形品 の成形等は困難であった。0004 In other words, when filling the mold cavity with resin in an injection molding machine, the injection The screw advance speed, that is, the injection speed, is multi-stage speed controlled for the ejecting operation, and the mold cavity is This method fills the resin under optimal conditions that suit the shape of the tee. In the case of John molding, the process of filling the mold cavity with resin by rotating the screw is Since the multi-stage control described above is not performed, the quality of molded products can be improved and molded products with complex shapes can be improved. It was difficult to mold.
【０００５】 本考案は前記成形法において、スクリュ回転速度を多段階に変化させて金型の キャビティへの樹脂の充填速度を可変に制御する制御装置を提供し、前記の課題 を解決しようとするものである。[0005] The present invention uses the above-mentioned molding method to change the screw rotation speed in multiple stages. Provides a control device that variably controls the filling speed of resin into a cavity, and solves the above problems. This is an attempt to solve the problem.
【０００６】[0006]
このため本考案は、インラインスクリュ式射出成形機においてスクリュ回転に より可塑化された成形材料を、シリンダ内に溜めることなく連続的にキャビティ に充填して行く成形法における制御装置において、スクリュを回転駆動する駆動 装置に圧油を供給する通路上に流量調整弁を設け、同流量調整弁は制御機構から の信号により制御され、同制御機構は複数個のスクリュ回転速度設定器とスクリ ュ回転時間設定器とを備えることにより、スクリュ回転速度を多段階に変化させ て金型のキャビティ形状に合致した樹脂の充填速度を可変にするようにしてなる もので、これを課題解決のための手段とするものである。 For this reason, the present invention is designed to prevent screw rotation in in-line screw injection molding machines. More plasticized molding material is continuously poured into the cavity without accumulating in the cylinder. In the control device for the molding method that fills the A flow rate adjustment valve is installed on the path that supplies pressure oil to the equipment, and the flow rate adjustment valve is connected to the control mechanism. The control mechanism is controlled by multiple screw rotation speed setting devices and screw By being equipped with a screw rotation time setting device, the screw rotation speed can be changed in multiple stages. The filling speed of resin that matches the shape of the mold cavity can be made variable. This is a means to solve problems.
【０００７】[0007]
イントルージョン成形において、スクリュ回転動作で金型のキャビティに樹脂 を充填する工程における樹脂の充填速度は、スクリュ回転速度と関連する。要す るにスクリュ回転速度を大きくすれば充填速度は速くなり、スクリュ回転速度を 小さくすれば充填速度は遅くなる。そこでスクリュ回転動作で金型のキャビティ に樹脂を充填する工程において、複数個のスクリュ回転速度設定器と、スクリュ 回転時間設定器によりスクリュ回転速度とスクリュ回転時間とを多段に制御する ことにより、金型のキャビティ形状に適応した最適条件で金型のキャビティに樹 脂を充填することができる。 In intrusion molding, resin is inserted into the mold cavity through the rotation of the screw. The resin filling speed in the filling process is related to the screw rotation speed. required Increasing the screw rotation speed will increase the filling speed; If it is made smaller, the filling speed will be slower. Therefore, the mold cavity is opened by rotating the screw. In the process of filling the resin with resin, multiple screw rotation speed setting devices and screw The screw rotation speed and screw rotation time are controlled in multiple stages using a rotation time setting device. This allows the mold cavity to be filled with optimum conditions that suit the shape of the mold cavity. Can be filled with fat.
【０００８】[0008]
以下本考案を図面の実施例について説明すると、図１は本考案の実施例を示し 、１はスクリュ、２はスクリュ回転駆動装置、３はホッパ、４はシリンダで、同 スクリュ１は油圧シリンダ６のピストン１０と連結されており、同油圧シリンダ ６の油圧室６ａに図示しない油圧装置から圧油を供給することによりスクリュ１ の前進動作を行ない、スクリュ１の前部５に蓄えられた樹脂を金型１２のキャビ ティ１３内へ充填するものである。 The present invention will be explained below with reference to drawings. Figure 1 shows an embodiment of the present invention. , 1 is a screw, 2 is a screw rotation drive device, 3 is a hopper, and 4 is a cylinder. The screw 1 is connected to a piston 10 of a hydraulic cylinder 6. By supplying pressure oil from a hydraulic device (not shown) to the hydraulic chamber 6a of 6, the screw 1 The resin stored in the front part 5 of the screw 1 is transferred to the cavity of the mold 12 This is to fill the inside of the tee 13.
【０００９】 またスクリュ１はスクリュ回転駆動装置（一般的には油圧モータ）２により回 転駆動されるもので、同スクリュ回転駆動装置２にポンプ８により圧油を供給す ることによりスクリュ回転動作を行ない、ホッパ３に蓄えられた樹脂を、シリン ダ４の前端部５と樹脂路１１を通過させて金型１２のキャビティ１３へ充填する 。スクリュ回転駆動装置２へポンプ８により供給される圧油は、流量調整弁９で 制御される。７はリザーバ、１８は制御機構で、同制御機構１８は流量調整弁９ に電気指令を与え、スクリュ回転駆動装置２へ供給する圧油流量を制御するもの である。[0009] The screw 1 is rotated by a screw rotation drive device (generally a hydraulic motor) 2. The pump 8 supplies pressurized oil to the screw rotation drive device 2. By doing so, the screw rotates and the resin stored in the hopper 3 is transferred to the cylinder. The resin is passed through the front end 5 of the mold 4 and the resin path 11 to fill the cavity 13 of the mold 12. . The pressure oil supplied to the screw rotation drive device 2 by the pump 8 is controlled by the flow rate adjustment valve 9. controlled. 7 is a reservoir, 18 is a control mechanism, and the control mechanism 18 is a flow rate adjustment valve 9. A device that gives electrical commands to and controls the flow rate of pressure oil supplied to the screw rotation drive device 2. It is.
【００１０】 次に制御機構１８の詳細を図３により説明すると、同制御機構１８は、複数個 のスクリュ回転速度設定器２０、２０Ａ、２０Ｂ及び複数個のスクリュ回転時間 設定器２１、２１Ａ、２１Ｂと、それらの設定値を演算して流量調整弁９へ信号 線２２を介して電気的出力を順次出力する演算装置１９により構成されている。 なお、図３の実施例では、スクリュ回転速度設定器及びスクリュ回転時間設定器 を共に３個づつとしたが、これらは当然３個のみに限定されるものではなく、複 数個であれば、３個以下でも、３個以上であってもよい。0010 Next, details of the control mechanism 18 will be explained with reference to FIG. screw rotation speed setting devices 20, 20A, 20B and multiple screw rotation times Setters 21, 21A, 21B calculate their set values and send a signal to the flow rate adjustment valve 9. It is composed of an arithmetic unit 19 that sequentially outputs electrical outputs via a line 22. In the embodiment shown in FIG. 3, a screw rotation speed setting device and a screw rotation time setting device are used. Of course, these are not limited to only three, but can be multiple. As long as there are several pieces, the number may be 3 or less or 3 or more.
【００１１】 次に以上の如く構成された図１及び図３の実施例について作用を説明すると、 先ず制御機構１８内に設置されたスクリュ回転速度設定器２０に、第１段目のス クリュ回転速度Ｎ1 を設定する。そしてその時のスクリュ回転時間Ｔ1 はスクリ ュ回転時間設定器２１にて設定する。次に第２段目の回転速度Ｎ2 は、スクリュ 回転速度設定器２０Ａで、またその時のスクリュ回転時間Ｔ2 は設定器２１Ａで 設定する。同様に第３段目の回転速度Ｎ3 はスクリュ回転速度設定器２０Ｂで、 その回転時間Ｔ3 はスクリュ回転時間設定器２１Ｂで設定する。ここで各設定器 ２０〜２０Ｂ、２１〜２１Ｂにて設定した数値は、演算装置１９で演算され、そ の電気的出力はスクリュ回転駆動装置２へ供給される圧油の流量を制御する流量 調整弁９へ信号線２２を介して順次出力される。Next, to explain the operation of the embodiment of FIGS. 1 and 3 configured as above, first, the screw rotation speed setting device 20 installed in the control mechanism 18 sets the screw rotation speed of the first stage. Set N1 . The screw rotation time T1 at that time is set by the screw rotation time setting device 21. Next, the second stage rotation speed N 2 is set by the screw rotation speed setter 20A, and the screw rotation time T 2 at that time is set by the setter 21A. Similarly, the rotation speed N 3 of the third stage is set by the screw rotation speed setting device 20B, and the rotation time T 3 is set by the screw rotation time setting device 21B. Here, the numerical values set by the setting devices 20 to 20B and 21 to 21B are calculated by the calculation device 19, and the electrical output thereof is applied to a flow rate regulating valve that controls the flow rate of the pressure oil supplied to the screw rotation drive device 2. 9 via the signal line 22.
【００１２】 流量調整弁９は、演算装置１９より出力された電気的出力信号により開度調整 が行なわれ、スクリュ駆動装置２への圧油の流量とその時間を制御する。その結 果、スクリュ回転動作で金型12のキャビティ１３へ樹脂を充填するイントルージ ョン成形時の前工程においては、スクリュ回転数とスクリュ回転時間とを多段に 変化させる射出動作の制御とし、後工程ではスクリュ回転をせず、スクリュ１の 前進のみの射出動作の制御が可能となる。0012 The flow rate adjustment valve 9 has its opening degree adjusted by an electrical output signal output from the calculation device 19. is performed to control the flow rate and time of pressure oil to the screw drive device 2. The result As a result, the intrusion fills the cavity 13 of the mold 12 with resin by rotating the screw. In the pre-process during molding, the screw rotation speed and screw rotation time are adjusted in multiple stages. The injection operation is controlled by changing the injection operation, and the screw 1 is not rotated in the post-process. It becomes possible to control injection operation only in the forward direction.
【００１３】[0013]
以上詳細に説明した如く本考案は構成されているので、次のような効果がある 。一般に射出成形機で成形品を成形する場合、金型のキャビティ形状に適応した 最適条件で成形するために、スクリュ前進速度を多段階に制御して良品質の成形 品を得ることが行なわれているが、本考案もこれと同様にスクリュ回転により金 型のキャビティに樹脂を充填する工程で、スクリュ回転速度を多段階に制御する ことにより、前記と同様に良品質の成形品を得ることができる効果がある。 Since the present invention is constructed as explained in detail above, it has the following effects. . Generally, when molding a molded product with an injection molding machine, the In order to mold under optimal conditions, the screw advancement speed is controlled in multiple stages to achieve high quality molding. In the same way, this invention also obtains gold by rotating a screw. The screw rotation speed is controlled in multiple stages during the process of filling the mold cavity with resin. This has the effect that a molded product of good quality can be obtained in the same manner as described above.
【図１】本考案の実施例を示す制御装置の射出部と金型
部の断面として示す系統図である。FIG. 1 is a system diagram showing a cross section of an injection section and a mold section of a control device showing an embodiment of the present invention.
【図２】本考案におけるスクリュ回転速度と樹脂充填速
度のチャート図である。FIG. 2 is a chart of screw rotation speed and resin filling speed in the present invention.
【図３】図１における制御機構の詳細図である。FIG. 3 is a detailed diagram of the control mechanism in FIG. 1;
【図４】従来のスクリュ回転速度と樹脂充填速度を示す
チャート図である。FIG. 4 is a chart showing the conventional screw rotation speed and resin filling speed.
１ スクリュ ２ スクリュ回転駆動装置 ４ シリンダ ５ 前端部 ６ 油圧シリンダ ８ ポンプ ９ 流量調整弁 １０ ピストン １１ 樹脂路 １２ 金型 １３ キャビティ １８ 制御機構 ２０、２０Ａ、２０Ｂ スクリュ回転速度設定器 ２１、２１Ａ、２１Ｂ スクリュ回転時間設定器 1 screw 2 Screw rotation drive device 4 cylinder 5 Front end 6 Hydraulic cylinder 8 pump 9 Flow rate adjustment valve 10 Piston 11 Resin road 12 Mold 13 Cavity 18 Control mechanism 20, 20A, 20B Screw rotation speed setting device 21, 21A, 21B Screw rotation time setting device
Claims (1)
てスクリュ回転により可塑化された成形材料を、シリン
ダ内に溜めることなく連続的にキャビティに充填して行
く成形法における制御装置において、スクリュを回転駆
動する駆動装置に圧油を供給する通路上に流量調整弁を
設け、同流量調整弁は制御機構からの信号により制御さ
れ、同制御機構は複数個のスクリュ回転速度設定器とス
クリュ回転時間設定器とを備えることにより、スクリュ
回転速度を多段階に変化させて金型のキャビティ形状に
合致した樹脂の充填速度を可変にすることを特徴とする
射出成形機の制御装置。Claim 1: A control device for a molding method in which a molding material plasticized by screw rotation in an in-line screw injection molding machine is continuously filled into a cavity without being accumulated in a cylinder, the screw being rotationally driven. A flow rate adjustment valve is provided on the passage that supplies pressure oil to the drive device, and the flow rate adjustment valve is controlled by a signal from a control mechanism, and the control mechanism includes a plurality of screw rotation speed setting devices and screw rotation time setting devices. 1. A control device for an injection molding machine, characterized in that the screw rotation speed is changed in multiple stages to vary the filling speed of resin that matches the shape of a mold cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1588891U JPH04107022U (en) | 1991-02-27 | 1991-02-27 | Injection molding machine control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1588891U JPH04107022U (en) | 1991-02-27 | 1991-02-27 | Injection molding machine control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04107022U true JPH04107022U (en) | 1992-09-16 |
Family
ID=31903009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1588891U Withdrawn JPH04107022U (en) | 1991-02-27 | 1991-02-27 | Injection molding machine control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04107022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003011188A (en) * | 2001-06-27 | 2003-01-15 | Toshiba Mach Co Ltd | Injection molding driving apparatus |
-
1991
- 1991-02-27 JP JP1588891U patent/JPH04107022U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003011188A (en) * | 2001-06-27 | 2003-01-15 | Toshiba Mach Co Ltd | Injection molding driving apparatus |
| JP4659281B2 (en) * | 2001-06-27 | 2011-03-30 | 東芝機械株式会社 | Injection molding drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950518 |