JP2008518811A - Clamping unit - Google Patents
Clamping unit Download PDFInfo
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- JP2008518811A JP2008518811A JP2007539578A JP2007539578A JP2008518811A JP 2008518811 A JP2008518811 A JP 2008518811A JP 2007539578 A JP2007539578 A JP 2007539578A JP 2007539578 A JP2007539578 A JP 2007539578A JP 2008518811 A JP2008518811 A JP 2008518811A
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- JP
- Japan
- Prior art keywords
- clamping unit
- mold clamping
- screw
- unit according
- movable platen
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Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000003321 amplification Effects 0.000 abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/22—Opening, closing or clamping by rectilinear movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
特に射出成形機のための型締めユニットであって、固定盤（１）と、可動盤（３）と、該可動盤のための電動モータ駆動される偏心伝動装置（１３，１４，１５）とが設けられている形式のものにおいて、本発明によれば、簡単かつ堅牢でコンパクトな、小数の伝動装置エレメントから成る１つの行程駆動装置によって行程距離に応じて高い力増幅と正確な可動盤位置決めとを得るために、パルス制御されたステップモータ（７）によって駆動されるスクリュ伝動装置（１０，１１，１２）が偏心伝動装置に前置されている。 A mold clamping unit particularly for an injection molding machine, which includes a fixed platen (1), a movable platen (3), and an eccentric transmission (13, 14, 15) driven by an electric motor for the movable platen. In accordance with the present invention, a single stroke drive consisting of a small number of transmission elements provides high force amplification and accurate movable plate positioning according to stroke distance. The screw transmission (10, 11, 12) driven by the pulse-controlled step motor (7) is provided in front of the eccentric transmission.
Description
本発明は、請求項１の上位概念に記載の形式の、特に射出成形機のための型締めユニットに関する。 The invention relates to a clamping unit, in particular for an injection molding machine, in the form of the superordinate concept of claim 1.
ＥＰ１１５０８２１号特許明細書により公知の、例えばＣＤやＤＶＤ等のようなディスク状の情報担体を製造するための射出成形機に用いるこのような形式の型締めユニットでは、可動盤の作業行程は、電動モータによって駆動される偏心伝動装置の作業工程によって生ぜしめられ、これに対してより長い保守整備行程は、対応する駆動モータを有するスピンドル伝動装置によって生ぜしめられる。このスピンドル伝動装置により、可動盤、偏心伝動装置、対応する電動モータから成る構成群全体が、スタンパの交換のためにさらに開放されるサービス位置へと引き戻される。このような形式の型締めユニットは、可動盤のμ範囲での極めて正確な閉鎖位置の位置決めを保証しなければならず、同時に短いサイクル時間と、十分高い射出圧と、型押し圧に関しても極めて大きな加速力と閉鎖力とを加えなければならない。このためにこのような公知の型締めユニットでは両電動モータはそれぞれ正確に位置決め可能なサーボモータとして形成されていて、偏心伝動装置は駆動側で、多段階の減速伝動装置を介在して、所属の電動モータに結合されている。 In a mold clamping unit of this type used in an injection molding machine for producing a disc-shaped information carrier such as a CD or DVD known from the specification of EP 1150821, the work process of the movable plate is electrically driven. It is caused by the working process of the eccentric gear driven by the motor, whereas the longer maintenance process is caused by the spindle gear with the corresponding drive motor. With this spindle transmission device, the entire group consisting of the movable platen, the eccentric transmission device and the corresponding electric motor is pulled back to the service position which is further opened for exchanging the stamper. A mold clamping unit of this type must guarantee a very precise closing position in the μ range of the movable platen, and at the same time very short in terms of short cycle times, sufficiently high injection pressures and mold pressing pressures. A large acceleration and closing force must be applied. For this reason, in such a known mold clamping unit, both electric motors are formed as servo motors that can be positioned accurately, and the eccentric transmission device is on the drive side, with a multi-stage reduction transmission device, belonging to Is coupled to the electric motor.
本発明の課題は、冒頭で述べた形式の型締めユニットを改良して、簡単かつ堅牢でコンパクトな、小数の駆動エレメントから成る１つの駆動システムによって、行程距離に応じて高い力増幅と正確な可動盤位置決めとが得られるように形成された型締めユニットを提供することである。 The object of the present invention is to improve the clamping unit of the type mentioned at the outset, with a single drive system consisting of a small number of drive elements, simple, robust and compact, with high force amplification and accurate according to the travel distance. It is an object of the present invention to provide a mold clamping unit formed so as to obtain movable platen positioning.
この課題は、本発明によれば、請求項１の特徴を有する型締めユニットによって解決される。 This object is achieved according to the invention by a clamping unit having the features of claim 1.
本発明によれば、可動盤駆動のためには、スクリュ伝動装置とこれに後置された偏心伝動装置とのコンビネーションにより、構造的に強度の高い僅かな電動エレメントしか必要ではない。これは省スペースであり、極めてコンパクトな電動装置ユニットを成すように、最適に行程距離に依存した高い力増幅装置と共に組み込むことができ、ステップモータとしての電動モータの有利な構成と結合されて、ミクロメータの範囲の精度で可動盤の閉鎖位置の位置決めを可能にする。 According to the present invention, in order to drive the movable platen, only a few electric elements having high structural strength are required due to the combination of the screw transmission device and the eccentric transmission device placed behind the screw transmission device. This is space-saving and can be integrated with a high power amplification device that is optimally dependent on the travel distance to form an extremely compact electric device unit, combined with the advantageous configuration of the electric motor as a stepping motor, Enables positioning of the movable platen closed position with accuracy in the micrometer range.
特に有利には、ステップモータは可逆的でパルス制御されており、このモータに後置されたスクリュ・偏心伝動装置により、可動盤の作業行程も保守整備行程も行うことができ、これによりそのために必要であった二重駆動装置を省くことができる。 Particularly advantageously, the stepping motor is reversible and pulse-controlled, and the screw / eccentric transmission behind the motor allows both the work process and the maintenance process of the movable plate to be carried out. The required double drive device can be omitted.
構造的にさらなる簡単化および省スペース化は有利には、スクリュ伝動装置を、スクリュ歯車の偏心ピンに枢着された少なくとも１つのコネクティングロッドを介して直接的に可動盤に接続し、その回転軸線を、機械軸線に対して垂直かつ可動盤の摺動平面に対して平行に配置することにより得られる。これによりスクリュ伝動装置と偏心伝動装置とから成るコンビネーション電動ユニット全体を、タイロッドが設けられている型締めユニットにおいて問題なく、タイロッドによって制限されている組み込みスペース内に取り付けることができる。最後に可動盤の正確なガイドに関しては、可動盤がスクリュ歯車に、有利には２つの平行に作用する、機械軸線に対して対称的にスクリュ歯車の両側で、それぞれ偏心ピンに接続された２つのコネクティングロッドを介して駆動力を伝えるように結合されている。 A further simplification and space saving is advantageous in that the screw transmission is connected directly to the movable plate via at least one connecting rod pivotally attached to the eccentric pin of the screw gear and its axis of rotation Is obtained by arranging them perpendicular to the machine axis and parallel to the sliding plane of the movable platen. As a result, the entire combination electric unit including the screw transmission device and the eccentric transmission device can be mounted in the installation space limited by the tie rod without any problem in the mold clamping unit provided with the tie rod. Finally, with respect to the precise guide of the movable platen, the movable plate is connected to the screw gears, preferably two parallel acting, symmetrically with respect to the machine axis, on each side of the screw gears, respectively. Coupled to transmit the driving force through two connecting rods.
次に本発明を図面につき詳しく説明する。 The invention will now be described in detail with reference to the drawings.
図示した型締めユニットは、３盤・ビーム機械として形成されていて、固定盤１と、機械ベッド２に沿って行程運動可能に案内された可動盤３と、長手方向ビーム４を介して抗張的にねじ結合部材５によって調節可能に固定盤１に結合された駆動支持盤６とを有している。 The illustrated mold clamping unit is formed as a three-disc beam machine, and is fixed via a stationary platen 1, a movable platen 3 guided so as to be movable along the machine bed 2, and a longitudinal beam 4. In particular, it has a drive support plate 6 that is connected to the fixed platen 1 by a screw connection member 5 so as to be adjustable.
可動盤３の行程駆動装置は、配属されたパルス制御装置８を有するステップモータ７と、このモータ７に後置された、スクリュ駆動装置１０を有するコンビネーション伝動装置（全体を符号９で示す）とから成っている。このコンビネーション伝動装置９は、モータ駆動されるスクリュ１１と、回転軸が機械軸線Ａ−Ａに対して垂直かつ可動盤３の摺動平面に対して平行に配置されたスクリュ歯車１２と、これに後置された偏心伝動装置１３とから成っている。偏心伝動装置１３は、スクリュ歯車１２の両側で機械軸線Ａ−Ａに対して対称的に配置された２つのコネクティングロッド１４から成っており、このコネクティングロッド１４は、一方では可動盤３に、他方ではスクリュ歯車１２にそれぞれ直接固定された偏心ピン１５に転がり軸受１６を介して回転可能に結合されている。ケーシング側ではコンビネーション伝動装置９が支持盤６に固定されている。 The stroke drive device of the movable platen 3 includes a step motor 7 having a pulse control device 8 assigned thereto, and a combination transmission device (indicated by reference numeral 9 as a whole) having a screw drive device 10 placed behind the motor 7. Consists of. The combination transmission device 9 includes a screw 11 driven by a motor, a screw gear 12 having a rotation shaft perpendicular to the machine axis AA and parallel to the sliding plane of the movable platen 3, and It is composed of an eccentric transmission device 13 which is placed later. The eccentric transmission 13 is composed of two connecting rods 14 arranged symmetrically with respect to the machine axis A-A on both sides of the screw gear 12, and the connecting rod 14 is connected to the movable plate 3 on the one hand and the other on the other hand. Then, it is rotatably coupled to an eccentric pin 15 fixed directly to the screw gear 12 via a rolling bearing 16. A combination transmission device 9 is fixed to the support plate 6 on the casing side.
図示した型締めユニットは、ＣＤやＤＶＤのようなディスク状の情報担体を製造することを意図している。射出、型押し工程では、偏心伝動装置１３は、前方の死点位置にまたは、その直前に位置しているので、行程駆動装置の力増幅比、即ち、可動盤３に作用する行程力は、ステップモータ７のトルクに関して最高値に上昇し、固定盤および可動盤１，３は相応に高い閉鎖力で、図面に点線で示した工具部分の閉鎖状態に保持される。型押し工程に続いてスクリュ歯車１２は、ステップモータ７に配属されたパルス制御装置８の命令下で、後方の死点位置の方向に戻し回転され、これにより固定盤および可動盤１，３は、作業行程に相応する、射出成形部分の取り出しのための開放位置に戻される。これに続いてステップモータ７とスクリュ歯車１２とは、逆方向の回転方向に制御され、これにより可動盤３は再び閉鎖位置に到る。ディスク状の情報担体を製造する際に工具交換のためには、即ちスタンパを交換するために、または、サービス・修理目的で可動盤３を短い作業行程を越えて、これに対してさらに引き戻された図示した保守整備位置へと開放しなければならない。このような比較的長い保守整備行程も、ステップモータ７の相応の制御およびスクリュ歯車１２の回転運動により、後方の死点位置にまで、またはその近くにまで生ぜしめられる。この場合、可動盤３の最大行程は、偏心ピン１５の偏心率によって規定されている。これにより、比較的短い作業行程も比較的長い保守整備行程も、別個の駆動システムによってではなく、１つの同じ行程駆動装置７，１２，１３によって行われる。 The illustrated clamping unit is intended to produce a disc-shaped information carrier such as a CD or DVD. In the injection and stamping process, since the eccentric transmission 13 is located at or just before the front dead center position, the force amplification ratio of the stroke driving device, that is, the stroke force acting on the movable platen 3 is With respect to the torque of the step motor 7, the maximum value is increased, and the fixed platen and the movable plates 1 and 3 are held in the closed state of the tool portion indicated by the dotted line in the drawing with a correspondingly high closing force. Following the embossing process, the screw gear 12 is rotated back in the direction of the rear dead center position under the command of the pulse control device 8 assigned to the step motor 7, whereby the fixed platen and the movable plates 1, 3 are Returning to the open position for taking out the injection-molded part, corresponding to the working stroke. Following this, the stepping motor 7 and the screw gear 12 are controlled in the reverse direction of rotation, whereby the movable platen 3 reaches the closed position again. When manufacturing the disc-shaped information carrier, the movable platen 3 is further retracted over a short work process for tool change, ie for changing the stamper, or for service and repair purposes. It must be opened to the maintenance position shown. Such a relatively long maintenance process can also be brought up to or near the rear dead center position by corresponding control of the stepping motor 7 and the rotational movement of the screw gear 12. In this case, the maximum stroke of the movable platen 3 is defined by the eccentricity of the eccentric pin 15. Thereby, both a relatively short work process and a relatively long maintenance process are carried out by one and the same process drive 7, 12, 13 rather than by a separate drive system.
１回転につき約１×１０６までの回転角度インクリメントが得られる、パルス制御された駆動モータと接続された組み合わされたスクリュ・偏心伝動装置９の高い減速比に基づき、可動盤３の閉鎖位置は極めて正確に、即ち、本発明の具体的な実施例では、論理的には約０．１μの精度でもって達せられる。 Based on the high reduction ratio of the combined screw / eccentric transmission 9 connected to the pulse-controlled drive motor, which gives a rotation angle increment of up to about 1 × 10 6 per revolution, the closed position of the movable platen 3 is Very accurately, ie, in a specific embodiment of the present invention, can be achieved with an accuracy of about 0.1μ.
Claims (9)
偏心伝動装置（１３，１４，１５）を駆動するために電動モータ駆動されるスクリュ伝動装置（１０，１１，１２）が設けられていることを特徴とする型締めユニット。 In particular, a mold clamping unit for an injection molding machine, in which a fixed platen, a movable platen, and an eccentric transmission driven by an electric motor for the movable platen are provided,
A mold clamping unit comprising a screw transmission (10, 11, 12) driven by an electric motor to drive the eccentric transmission (13, 14, 15).
スクリュ伝動装置（１０，１１，１２）のギアボックスと偏心伝動装置（１３）のコネクティングロッド（１４）が、タイバー（４）によって制限された組み込みスペースの内側に配置されていることを特徴とする、請求項１から７までのいずれか１項記載の型締めユニット。 8. The mold clamping unit according to claim 1, further comprising a tie bar (4) for coupling the stationary platen (1) to the drive support plate (6). ,
The gear box of the screw transmission (10, 11, 12) and the connecting rod (14) of the eccentric transmission (13) are arranged inside the installation space limited by the tie bar (4). The mold clamping unit according to any one of claims 1 to 7.
スクリュ伝動装置（１０）と偏心伝動装置（１３）とから成るコンビネーション伝動装置（９）のケーシングが、駆動支持盤（６）に固定的に結合されている、請求項１から８までのいずれか１項記載の型締めユニット。 The mold clamping unit according to any one of claims 1 to 8, comprising a drive support plate (6).
The casing of a combination transmission device (9) comprising a screw transmission device (10) and an eccentric transmission device (13) is fixedly coupled to the drive support disc (6). The mold clamping unit according to item 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410053744 DE102004053744A1 (en) | 2004-11-06 | 2004-11-06 | Mold closing |
| PCT/EP2005/055738 WO2006048440A1 (en) | 2004-11-06 | 2005-11-03 | Mold clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2008518811A true JP2008518811A (en) | 2008-06-05 |
Family
ID=35677704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007539578A Ceased JP2008518811A (en) | 2004-11-06 | 2005-11-03 | Clamping unit |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2008518811A (en) |
| DE (2) | DE202004021035U1 (en) |
| TW (1) | TW200621474A (en) |
| WO (1) | WO2006048440A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013523487A (en) * | 2010-03-29 | 2013-06-17 | エーティーエス オートメーション ツーリング システムズ インコーポレイテッド | Mechanism and system for mold clamping |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823323A (en) * | 2010-03-04 | 2010-09-08 | 宁波海天科技有限公司 | Rapid mould-moving and positioning mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241419A (en) * | 1988-03-24 | 1989-09-26 | Komatsu Ltd | Molding device of injection compression molding machine and molding process |
| JPH04122618A (en) * | 1990-09-14 | 1992-04-23 | Tdk Corp | Injection molding device |
| JPH07112469A (en) * | 1993-10-18 | 1995-05-02 | Sodick Co Ltd | Mold clamping device |
| JP2002536218A (en) * | 1999-02-10 | 2002-10-29 | ネッツタール マシーネン アクチエンゲゼルシャフト | Mold clamping unit |
| JP2003136572A (en) * | 2001-10-31 | 2003-05-14 | Meiki Co Ltd | Mold clamping device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1050993A (en) * | ||||
| US2633094A (en) * | 1948-12-02 | 1953-03-31 | Bliss E W Co | Power-operated press device |
| DE3244300C1 (en) * | 1982-11-30 | 1984-01-19 | Herbert Dr.-Ing. 8032 Gräfelfing Funck | Mould clamping unit of an injection-moulding machine |
| JPS63286313A (en) * | 1987-05-19 | 1988-11-24 | Japan Steel Works Ltd:The | Mold clamping force setting device for toggle type injection molding machine |
| AT410423B (en) * | 2000-06-21 | 2003-04-25 | Engel Gmbh Maschbau | INJECTION MOLDING |
| SG98439A1 (en) * | 2001-01-09 | 2003-09-19 | Hongguan Technologies S Pte Lt | Apparatus for and a method used in compressing a workpiece |
| DE20314443U1 (en) * | 2002-11-14 | 2004-04-15 | Netstal-Maschinen Ag | Motor driven lever system for operating injection molding or die casting machines comprises a drive motor between cranks driving connecting rods linked to a moving platen |
| DE102004026450B4 (en) * | 2004-05-29 | 2007-10-25 | Krauss Maffei Gmbh | Clamping unit with double crank drive |
-
2004
- 2004-11-06 DE DE202004021035U patent/DE202004021035U1/en not_active Expired - Lifetime
- 2004-11-06 DE DE200410053744 patent/DE102004053744A1/en not_active Withdrawn
-
2005
- 2005-10-25 TW TW094137232A patent/TW200621474A/en unknown
- 2005-11-03 JP JP2007539578A patent/JP2008518811A/en not_active Ceased
- 2005-11-03 WO PCT/EP2005/055738 patent/WO2006048440A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01241419A (en) * | 1988-03-24 | 1989-09-26 | Komatsu Ltd | Molding device of injection compression molding machine and molding process |
| JPH04122618A (en) * | 1990-09-14 | 1992-04-23 | Tdk Corp | Injection molding device |
| JPH07112469A (en) * | 1993-10-18 | 1995-05-02 | Sodick Co Ltd | Mold clamping device |
| JP2002536218A (en) * | 1999-02-10 | 2002-10-29 | ネッツタール マシーネン アクチエンゲゼルシャフト | Mold clamping unit |
| JP2003136572A (en) * | 2001-10-31 | 2003-05-14 | Meiki Co Ltd | Mold clamping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013523487A (en) * | 2010-03-29 | 2013-06-17 | エーティーエス オートメーション ツーリング システムズ インコーポレイテッド | Mechanism and system for mold clamping |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006048440A1 (en) | 2006-05-11 |
| DE202004021035U1 (en) | 2006-07-20 |
| DE102004053744A1 (en) | 2006-05-11 |
| TW200621474A (en) | 2006-07-01 |
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