JPH0615011Y2 - Die lip spacing adjustment device - Google Patents
Die lip spacing adjustment deviceInfo
- Publication number
- JPH0615011Y2 JPH0615011Y2 JP1987185282U JP18528287U JPH0615011Y2 JP H0615011 Y2 JPH0615011 Y2 JP H0615011Y2 JP 1987185282 U JP1987185282 U JP 1987185282U JP 18528287 U JP18528287 U JP 18528287U JP H0615011 Y2 JPH0615011 Y2 JP H0615011Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- piezoelectric element
- lip
- closing
- element body
- 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.)
- Expired - Lifetime
Links
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
- B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Description
【考案の詳細な説明】 産業上の利用分野 本考案は溶融した樹脂を押出機によってダイから押出し
てフィルムやシートを成形するダイリップの間隔調整装
置に関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a die lip interval adjusting device for extruding a molten resin from an die by an extruder to form a film or a sheet.
従来の技術 従来、成形するシート等の厚さを調整するために、ダイ
リップを固定リップと可動リップで構成し、可動リップ
を固定リップに対して接近離間させてリップ間隔を調整
する作動ねじあるいはヒートボルトを設け、成形された
シート等の厚さを検出した検出値に基づいて、作動ねじ
の駆動用モータを作動したり、あるいはヒートボルトを
加熱冷却することにより、ボルト自身を伸縮させ、ダイ
リップの間隔を調整していた。2. Description of the Related Art Conventionally, in order to adjust the thickness of a sheet or the like to be molded, a die lip is composed of a fixed lip and a movable lip, and an operating screw or heat that adjusts the lip distance by moving the movable lip closer to and away from the fixed lip. A bolt is provided, and based on the detection value of the thickness of the formed sheet, etc., the motor for driving the operating screw is operated, or the heat bolt is heated and cooled to expand / contract the bolt itself, I was adjusting the interval.
考案が解決しようとする問題点 しかし、上記作動ねじを使用するものでは、ねじのバッ
クラッシュを解消するための装置や摩耗対策も必要で、
装置自身が複雑となる。また、ヒートボルトを使用する
ものでは、加熱冷却によってボルトを伸縮させるのに時
間がかかりすぎるという欠点を有していた。Problems to be solved by the invention However, in the case of using the above-mentioned actuating screw, a device for eliminating the backlash of the screw and measures against wear are also required,
The device itself becomes complicated. Further, in the case of using a heat bolt, it has a drawback that it takes too much time to expand and contract the bolt by heating and cooling.
本考案は上記問題点を解決して、簡単な構造で、迅速な
間隔調整が可能なダイリップ間隔調整装置を提供するこ
とを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a die lip distance adjusting device having a simple structure and capable of adjusting a distance quickly.
問題点を解決するための手段 上記問題点を解決するために本考案は、一端がフレキシ
ブルリップに連結されてダイリップ間隔を調整可能なロ
ッドを設け、複数の圧電素子がロッド長手方向に積層さ
れて印加される電圧により積層方向に伸長された時にダ
イリップ間隔を狭める方向に前記ロッドを駆動する閉動
用圧電素子体と、複数の圧電素子がロッド長手方向に積
層されて印加される電圧により積層方向に伸長された時
にダイリップ間隔を広げる方向に前記ロッドを駆動する
開動用圧電素子体とを設けた構成としたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a rod whose one end is connected to a flexible lip so that a die lip interval can be adjusted, and a plurality of piezoelectric elements are stacked in the longitudinal direction of the rod. A piezoelectric element body for closing motion that drives the rod in a direction that narrows the die lip interval when expanded in the laminating direction by an applied voltage, and a plurality of piezoelectric elements are laminated in the longitudinal direction of the rod, and in the laminating direction by the applied voltage. A piezoelectric element body for opening that drives the rod in a direction of widening the die lip interval when extended is provided.
作用 上記構成において、ダイリップ間隔を小さくする時に
は、閉動用圧電素子体に加えられる電圧を高くすること
により閉動用圧電素子体を伸長して、ロッドをダイリッ
プ間隔を狭める方向に駆動し、またダイリップ間隔を大
きくする時には、開動用圧電素子体に加えられる電圧を
高くすることにより開動用圧電素子体を伸長してロッド
をダイリップ間隔を広げる方向に駆動する。したがっ
て、簡単な構成で、迅速なダイリップ間隔の調整が可能
となる。Action In the above configuration, when the die lip distance is reduced, the voltage applied to the closing piezoelectric element body is increased to extend the closing piezoelectric element body and drive the rod in the direction of narrowing the die lip distance. When increasing, the voltage applied to the opening piezoelectric element body is increased to extend the opening piezoelectric element body and drive the rod in a direction to widen the die lip interval. Therefore, it is possible to quickly adjust the die lip interval with a simple configuration.
実施例 以下本考案の一実施例を第１図に基づいて説明する。Embodiment An embodiment of the present invention will be described below with reference to FIG.
１は樹脂成形用のダイで、樹脂２の導入孔３の出口に固
定リップ４とフレキシブルリップ５とを備え、前記フレ
キシブルリップ５はダイ本体６との間にＵ字溝７が形成
されて折曲げ自在で、固定リップ４に対して接近離間自
在である。８は一端がフレキシブルリップ５に固定され
たリップ間隔の調整用ロッドで、樹脂２の押出し方向Ａ
の上手側上方に傾斜して延び、ダイ本体６に所定間隔を
あけて突設された第１および第２の支持体９，10の貫通
孔９ａ，10ａに長手方向に移動自在に嵌合して支持さ
れ、ロッド８をその長手方向に沿う矢印Ｂ，Ｃ方向に移
動させることにより、固定リップ４とフレキシブルリッ
プ５とのリップ間隔ａを調整可能である。A resin molding die 1 is provided with a fixed lip 4 and a flexible lip 5 at the outlet of the introduction hole 3 for the resin 2, and the flexible lip 5 is folded by forming a U-shaped groove 7 between the flexible lip 5 and the die body 6. It is bendable and can move toward and away from the fixed lip 4. Reference numeral 8 is a rod for adjusting the lip interval, one end of which is fixed to the flexible lip 5, and the resin 2 is extruded in the direction A.
Of the first and second supporting bodies 9 and 10 projecting from the die body 6 at a predetermined interval and slidably extending upward in the longitudinal direction, and movably fitted in the longitudinal direction. It is supported by moving the rod 8 in the directions of the arrows B and C along the longitudinal direction of the rod 8 so that the lip distance a between the fixed lip 4 and the flexible lip 5 can be adjusted.
11は多数の圧電素子がロッド８の長手方向に積層された
閉動用圧電素子体で、基端が第２の支持体10内面に固定
されるとともに、先端がロッド８に突設された閉動用受
圧体12に当接可能で、この閉動用圧電素子体11に電圧を
加えることにより、閉動用圧電素子体11をロッド長手方
向に伸長して先端で閉動用受圧体12を押圧し、ロッド８
を矢印Ｂ方向に駆動してリップ間隔ａを狭めるように構
成される。Reference numeral 11 denotes a closing piezoelectric element body in which a large number of piezoelectric elements are stacked in the longitudinal direction of the rod 8. The base end is fixed to the inner surface of the second support body 10 and the tip end is projectingly provided on the rod 8 for closing. It is possible to contact the pressure receiving body 12, and by applying a voltage to this closing piezoelectric element body 11, the closing piezoelectric element body 11 is extended in the longitudinal direction of the rod to press the closing pressure receiving body 12 at the tip,
Is driven in the direction of arrow B to narrow the lip distance a.
13は多数の圧電素子がロッド８の長手方向に積層された
開動用圧電素子体で、基端が第１の支持体９内面に固定
されるとともに、先端がロッド８に突設された開動用受
圧体14に当接可能で、この開動用圧電素子体13に電圧を
加えることにより、開動用圧電素子体13をロッド長手方
向に伸長させて先端で開動用受圧体14を押圧し、ロッド
８を矢印Ｃ方向に駆動してリップ間隔ａを広げるように
構成される。Reference numeral 13 denotes an opening piezoelectric element body in which a large number of piezoelectric elements are stacked in the longitudinal direction of the rod 8, and the base end is fixed to the inner surface of the first support body 9 and the tip end is projectingly provided on the rod 8 for opening. It can come into contact with the pressure receiving body 14, and by applying a voltage to the opening piezoelectric element body 13, the opening piezoelectric element body 13 is extended in the longitudinal direction of the rod, and the tip end presses the opening pressure receiving body 14, and the rod 8 Is driven in the direction of arrow C to widen the lip distance a.
ところで、一般に圧電素子は、加えられる電荷により機
械的な歪みを生じるが、その歪み量は小さいため、長い
ストロークを得る場合には多数積層する必要がある。た
とえば、第２図に示すように、フレキシブルリップ21に
固定されたロッド22を１体の圧電素子体で駆動する場合
には、支持体23と受圧体24の間にロッド22の長手方向に
積層された開閉用圧電素子体25を介装し、この開閉用圧
電素子体25は支持体23および受圧体24に連結されて伸縮
される。この時、開閉用圧電素子体25を伸長してロッド
22をＢ方向に駆動しリップ間隔ａを狭める時は問題ない
が、開閉用圧電素子体25を短縮してロッド22をＣ方向に
駆動する時に、上記のように積層された圧電素子が剥離
するおそれがある。そのため、本考案では開動用と閉動
用の２体の圧電素子体11，13を設けることにより、上記
問題点を解決している。By the way, generally, a piezoelectric element causes mechanical strain due to an applied charge, but since the amount of strain is small, it is necessary to stack a large number of layers in order to obtain a long stroke. For example, as shown in FIG. 2, when the rod 22 fixed to the flexible lip 21 is driven by one piezoelectric element body, the rod 22 is laminated between the support body 23 and the pressure receiving body 24 in the longitudinal direction of the rod 22. The opened / closed piezoelectric element body 25 is interposed, and the opened / closed piezoelectric element body 25 is connected to the support body 23 and the pressure receiving body 24 to expand and contract. At this time, the piezoelectric element body 25 for opening and closing is extended to
There is no problem when 22 is driven in the B direction and the lip distance a is narrowed, but when the opening / closing piezoelectric element body 25 is shortened and the rod 22 is driven in the C direction, the piezoelectric elements laminated as described above peel off. There is a risk. Therefore, the present invention solves the above problem by providing two piezoelectric element bodies 11 and 13 for opening and closing.
前記開動用および閉動用圧電素子体11，13は、成形され
た樹脂体15の厚みを測定する厚み検出装置16の信号に基
づいて制御装置17により、開動用圧電素子体11の各圧電
素子および閉動用圧電素子体13の各圧電素子にそれぞれ
印加される電圧を調節して伸縮される。The opening and closing piezoelectric element bodies 11 and 13 are controlled by the control device 17 based on a signal from a thickness detecting device 16 that measures the thickness of the molded resin body 15, and the piezoelectric elements of the opening and closing piezoelectric element body 11 and It is expanded and contracted by adjusting the voltage applied to each piezoelectric element of the closing piezoelectric element body 13.
上記装置はフレキシブルリップ８の幅方向に複数個配設
されて同期駆動され、幅方向に広いシートやフイルムの
厚みが調整される。A plurality of the above-mentioned devices are arranged in the width direction of the flexible lip 8 and driven synchronously to adjust the thickness of a wide sheet or film in the width direction.
次に作用について説明する。Next, the operation will be described.
厚み検出器16の検出値が設定値以上であった場合、また
は樹脂体15の厚みを小さくする場合には、制御装置17に
より、まず開動用圧電素子体13に加える電圧を低くして
開動用圧電素子体13を短縮し、その先端と、開動用受圧
体14との間に隙間を形成した後、閉動用圧電素子体11に
加える電圧を高くして閉動用圧電素子体11を伸長し、そ
の先端で閉動用受圧体12を押圧してロッド８を矢印Ｂ方
向に駆動し、リップ間隔ａを狭める。When the detection value of the thickness detector 16 is equal to or larger than the set value, or when the thickness of the resin body 15 is reduced, the control device 17 first lowers the voltage applied to the opening piezoelectric element body 13 to open it. After shortening the piezoelectric element body 13 and forming a gap between the tip of the piezoelectric element body 13 and the opening pressure receiving body 14, the voltage applied to the closing movement piezoelectric element body 11 is increased to extend the closing movement piezoelectric element body 11, The tip end presses the closing pressure receiving body 12 to drive the rod 8 in the direction of arrow B to narrow the lip distance a.
また、厚み検出器16の検出値が規定値以上であった場
合、または樹脂体15の厚みを大きくしたい場合には、制
御装置17によりまず閉動用圧電素子体11に加える電圧を
低くして閉動用圧電素子体11を短縮し、その先端と閉動
用受圧体12との間に隙間を形成した後、開動用圧電素子
体13に加える電圧を高くして開動用圧電素子体13を伸長
し、その先端で開動用受圧体14を押圧してロッド８を矢
印Ｃ方向に駆動し、リップ間隔ａを広げる。Further, when the detection value of the thickness detector 16 is equal to or greater than the specified value, or when it is desired to increase the thickness of the resin body 15, the controller 17 first lowers the voltage applied to the closing piezoelectric element body 11 to close it. After shortening the moving piezoelectric element body 11 and forming a gap between the tip thereof and the closing pressure receiving body 12, the voltage applied to the opening movement piezoelectric element body 13 is increased to extend the opening movement piezoelectric element body 13, The tip end pushes the opening pressure-receiving body 14 to drive the rod 8 in the direction of arrow C to widen the lip interval a.
運転中はリップ間隔ａを維持するため、閉動用圧電素子
体11または両圧電素子体11，13はそれぞれ各受圧板12，
14に当接するように電圧が印加される。In order to maintain the lip distance a during operation, the closing piezoelectric element body 11 or both piezoelectric element bodies 11 and 13 are respectively pressure receiving plates 12 and
A voltage is applied so that it abuts 14.
考案の効果 以上に述べたこどく本考案によれば、フレキシブルリッ
プに一端が固定されてダイリップ間隔を調整可能なロッ
ドを、閉動用および開動用の２体の圧電素子体で往復駆
動するように構成されるので、きわめて簡単な構造で正
確なロッドの駆動を迅速に行うことができ、ダイリップ
間隔を調整できる。また、２体の圧電素子体は、電圧が
印加された伸長時にのみロッドを介してフレキシブルリ
ップを駆動するように構成したので、積層された圧電素
子体における収縮時の反力による圧電素子の剥がれ、分
離を未然に防止することができる。EFFECTS OF THE INVENTION According to the present invention described above, the rod, one end of which is fixed to the flexible lip and the die lip interval can be adjusted, is configured to be reciprocally driven by the two piezoelectric element bodies for closing and opening. Therefore, the rod can be rapidly and accurately driven with an extremely simple structure, and the die lip interval can be adjusted. Further, since the two piezoelectric element bodies are configured to drive the flexible lip via the rod only when the piezoelectric element bodies are extended when a voltage is applied, the peeling of the piezoelectric elements due to the reaction force at the time of contraction in the laminated piezoelectric element bodies. The separation can be prevented in advance.
【図面の簡単な説明】 第１図は本考案の一実施例を示す側面断面図、第２図は
比較例を示す側面断面図である。 １…ダイ、２…樹脂、４…固定リップ、５…フレキシブ
ルリップ、８…ロッド、９…第１の支持体、10…第２の
支持体、11…閉動用圧電素子体、12…閉動用受圧体、13
…開動用圧電素子体、14…開動用受圧体、ａ…リップ間
隔。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a side sectional view showing a comparative example. 1 ... Die, 2 ... Resin, 4 ... Fixed lip, 5 ... Flexible lip, 8 ... Rod, 9 ... First support, 10 ... Second support, 11 ... Closing piezoelectric element body, 12 ... Closing Pressure receiver, 13
... Piezoelectric element for opening, 14 ... Pressure receiving element for opening, a ... Lip spacing.
Claims (1)
イリップ間隔を調整可能なロッドを設け、複数の圧電素
子がロッド長手方向に積層されて印加される電圧により
積層方向に伸長された時にダイリッブ間隔を狭める方向
に前記ロッドを駆動する閉動用圧電素子体と、複数の圧
電素子がロッド長手方向に積層されて印加される電圧に
より積層方向に伸長された時にダイリップ間隔を広げる
方向に前記ロッドを駆動する開動用圧電素子体とを設け
たことを特徴とするダイリップ間隔調整装置。1. A rod having one end connected to a flexible lip to adjust a die lip distance, wherein a plurality of piezoelectric elements are laminated in a longitudinal direction of the rod, and a die-lib distance is extended when the piezoelectric elements are extended in a laminating direction by an applied voltage. And a piezoelectric element for closing that drives the rod in a direction that narrows the rod, and a plurality of piezoelectric elements that are stacked in the longitudinal direction of the rod and that drive the rod in a direction that widens the die lip interval when expanded in the stacking direction by the applied voltage. And a piezoelectric element body for opening that is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185282U JPH0615011Y2 (en) | 1987-12-03 | 1987-12-03 | Die lip spacing adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987185282U JPH0615011Y2 (en) | 1987-12-03 | 1987-12-03 | Die lip spacing adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0189118U JPH0189118U (en) | 1989-06-13 |
| JPH0615011Y2 true JPH0615011Y2 (en) | 1994-04-20 |
Family
ID=31476604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987185282U Expired - Lifetime JPH0615011Y2 (en) | 1987-12-03 | 1987-12-03 | Die lip spacing adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615011Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4639491B2 (en) * | 2001-02-23 | 2011-02-23 | 東レ株式会社 | Sheet extrusion die |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61261022A (en) * | 1985-05-15 | 1986-11-19 | Teijin Ltd | Manufacture of polymer film |
| JPH0675902B2 (en) * | 1985-06-10 | 1994-09-28 | 三菱重工業株式会社 | Die lip adjuster |
| JPS6225527U (en) * | 1985-07-31 | 1987-02-17 |
-
1987
- 1987-12-03 JP JP1987185282U patent/JPH0615011Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0189118U (en) | 1989-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2812742B2 (en) | Extrusion slit nozzle | |
| JP4849901B2 (en) | Press forming equipment | |
| EP1726426B1 (en) | Mold clamping device and mold thickness adjusting method | |
| KR100196683B1 (en) | Heat -displacing t-die | |
| EP1013342A2 (en) | Thermal cycling apparatus | |
| JPH0852782A (en) | Method for adjusting gap of outlet of die and the die | |
| JP4153993B2 (en) | Device for variable restricted boundary of flat flow path | |
| US8491296B2 (en) | Lip drive part for T-die | |
| JPH0615011Y2 (en) | Die lip spacing adjustment device | |
| US5305659A (en) | Tooling for folding press for air folding | |
| KR20040081763A (en) | Slot die | |
| TWI790073B (en) | Laminate forming system and lamination forming method | |
| US20060201226A1 (en) | Press-actuation system | |
| JPH0534127B2 (en) | ||
| JP2696706B2 (en) | Mold clamping device for injection molding machine | |
| KR100658394B1 (en) | Control method of induction motor | |
| JP3467585B2 (en) | Lip gap setting device for T-die of thermal displacement type | |
| JPH0675902B2 (en) | Die lip adjuster | |
| CN216032372U (en) | Wear-resisting type sheet extrusion moulding mould | |
| JP4098277B2 (en) | Control method of injection molding machine | |
| CN112248415B (en) | Transverse-pressing type straight Z-shaped partition frame preforming device | |
| JP2003291185A (en) | Extrusion unit for injection molding machine | |
| JPH0515436Y2 (en) | ||
| JP3343791B2 (en) | Product movement prevention structure by thermal expansion and contraction | |
| JPH06297525A (en) | Levelling controller for vertical clamping device and its control method |