JPH01241400A - Vertical forming machine - Google Patents

Vertical forming machine

Info

Publication number
JPH01241400A
JPH01241400A JP6733188A JP6733188A JPH01241400A JP H01241400 A JPH01241400 A JP H01241400A JP 6733188 A JP6733188 A JP 6733188A JP 6733188 A JP6733188 A JP 6733188A JP H01241400 A JPH01241400 A JP H01241400A
Authority
JP
Japan
Prior art keywords
ball screw
movable
machine frame
brake
movable panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6733188A
Other languages
Japanese (ja)
Other versions
JP2754210B2 (en
Inventor
Kikuo Watanabe
渡辺　菊夫
Masaki Muranaka
村中　正樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13341928&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH01241400(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fanuc Corp filed Critical Fanuc Corp
Priority to JP63067331A priority Critical patent/JP2754210B2/en
Publication of JPH01241400A publication Critical patent/JPH01241400A/en
Application granted granted Critical
Publication of JP2754210B2 publication Critical patent/JP2754210B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
    • B30B15/287—Arrangements for preventing distortion of, or damage to, presses or parts thereof preventing unintended ram movement, e.g. using blocking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means

Abstract

PURPOSE:To prevent the fall of a moving panel by arranging the movable panel moving mechanism consisting of a ball screw and screwed ball nut between a machine frame and the movable panel and providing the negative actuation solenoid brake for checking the movement on the mechanism thereof. CONSTITUTION:An electric motor 6 is provided at the upper part of a machine frame 4, the ball screw 7 for moving of a movable panel is arranged in the longitudinal direction as well and a movable panel moving mechanism is made by the ball nut 10 of the mobile panel 3 together with the ball screw 7. The solenoid brake 13 of negative actuation is fitted to the upper end part of the ball screw 7 in the space with the machine frame. At the powder compacting time of a punch and die the braking power of the brake 13 is released and the compacting is executed but when the sudden power source cut-off of the motor 6 happens, the brake 13 is subjected to emergency actuation to check the rotation of the ball screw 7. The fall by the gravity of the mobile panel 3 is thus surely prevented because the whole movable panel moving mechanism is fixed.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は縦形射出成形機や粉末成形機あるいは縦型プ
レス機のように、下方の固定盤とこれに対し上下移動可
能な可動盤を備えた縦型成形機に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is applicable to vertical injection molding machines, powder molding machines, or vertical presses that have a lower fixed platen and a movable platen that can move up and down relative to the lower fixed platen. Regarding mold forming machines.

従来技術 縦型成形機では、これまで取扱う成形加工が単純であっ
たためか、下方の固定盤に対し可動盤を移動させる移動
１構が、単純な油圧機構かクランク機構である場合が多
い。In conventional vertical molding machines, the moving mechanism for moving the movable platen relative to the lower fixed platen is often a simple hydraulic mechanism or crank mechanism, probably because the forming process handled up to now has been simple.

しかし、例えば精密な粉末成形を行おうとすると、やは
り可動盤〈型りの移動を精密に制御する必要があるので
、縦型成形機においても可動盤の移動機構にボールスク
リューとボールナットを用い、これをフィードバック付
きのサーボモータなど電動モータで駆動する電動式の構
成が検討されている。However, when trying to perform precise powder molding, for example, it is necessary to precisely control the movement of the movable platen (mold), so even in vertical molding machines, ball screws and ball nuts are used as the movement mechanism of the movable platen. An electric configuration in which this is driven by an electric motor such as a servo motor with feedback is being considered.

これにより、例えば前記粉末成形機においてはパンチの
位置や圧粉速度あるいは振動など圧粉の態様を自由に選
択できるなど、精密で正確な制御が可能となってきてい
るが、ボールスクリューとボールナットの組合せからな
る可！ｉｌＪ盤の上下移動機構は、前記スクリューとナ
ツト相互の回転に関する性能が高いために、可動盤が上
昇した状態のとき、該移動機構を駆動するモータの励磁
が解除されると、可動盤の重量によって前記移動機構が
作Ｖノされ、可動盤が落下する危険を伴っている。As a result, precise and accurate control has become possible in the powder compacting machine, such as the ability to freely select the punch position, powder compaction speed, vibration, and other forms of powder compaction. Can consist of a combination of! The vertical movement mechanism of the ilJ plate has high performance regarding the mutual rotation of the screw and nut, so when the movable plate is in a raised state and the excitation of the motor that drives the movement mechanism is released, the weight of the movable plate is reduced. There is a danger that the moving mechanism will be activated and the movable platen will fall.

発明が解決しようとする課題 この発明は、非常停止時や突然の電ＩＩＩ、！遮断時に
可動盤移動機描の作動がｌＸ１１止され、可動器の落下
が防止される構成を備えた縦型成形機の提供を課題とす
る。Problems to be Solved by the Invention This invention solves the problem in the event of an emergency stop or sudden electric shock. It is an object of the present invention to provide a vertical molding machine having a configuration in which the operation of the movable platen moving machine is stopped at the time of shutoff, thereby preventing the movable machine from falling.

課題を解決するための手段 下方の固定盤とこれに対し上下移動可能な可動盤を備え
、機枠と可１ＦＩ１１間にボールスクリューとこれに螺
合されたボールプツトによる可動器移動ｉ構が構成され
た縦型成形線において、前記移動機構にその移動を阻止
する負作動の電磁ブレーキを設りる。Means for Solving the Problem A movable mechanism is constructed by having a lower fixed plate and a movable plate that can be moved up and down relative to the lower fixed plate, and a ball screw and a ball put screwed to the ball screw between the machine frame and the flexible FI11. In the vertical forming wire, the moving mechanism is provided with a negative-actuation electromagnetic brake to prevent its movement.

作　　用 可動盤移＠機構は下方の固定盤に対し可動盤を上下移動
させる。Operation: The movable platen movement @ mechanism moves the movable platen up and down relative to the fixed platen below.

（Ｉ１作動の電磁ブレーキは縦型成形機が非作動どなっ
た時作動し、可動盤作動樫構の作動を阻止する。(The electromagnetic brake operated by I1 is activated when the vertical molding machine becomes inactive, and prevents the movable platen operating mechanism from operating.

実施例 第２図は粉末成形機１の要部を示したもので、下方の固
定盤２に対し可動盤３が、機枠４に設けたガイドロッド
５に沿って上下移動可能に配置されている。Embodiment FIG. 2 shows the main parts of a powder molding machine 1, in which a movable platen 3 is arranged so as to be movable up and down along a guide rod 5 provided on a machine frame 4 with respect to a fixed platen 2 below. There is.

機枠４の上部には電動モータ６が取りつけられ、また、
該機枠４にはボールスクリュー７が縦方向に軸架され、
その上端が電動モータ６の出力＠８とカプリング９で連
結されている。An electric motor 6 is attached to the upper part of the machine frame 4, and
A ball screw 7 is vertically mounted on the machine frame 4.
Its upper end is connected to the output @8 of the electric motor 6 by a coupling 9.

可動５１８３は上面にボールナット１０を固着して有し
、下面にバンチ１１を固定している。ボールナット１０
は前記のボールスクリュー７と螺合して可動器移動機構
を構成し、バンチ１１は固定盤２に装着したダイ１２と
対応している。The movable member 5183 has a ball nut 10 firmly fixed to its upper surface, and a bunch 11 is fixed to its lower surface. ball nut 10
is screwed together with the ball screw 7 to constitute a movable moving mechanism, and the bunch 11 corresponds to the die 12 mounted on the fixed platen 2.

さらに、前記可動盤作ａｍ構にお（ｊるボールスクリュ
ー７の上端部には、負作動の？ｌｔｌブレーキ１３が機
枠４との間で取付けられている。Further, a negative-acting brake 13 is attached to the upper end of the ball screw 7 in the movable platen mechanism between it and the machine frame 4.

電磁ブレーキ１３は第１図のように、固定ｌ２ＩＪｉ１
円盤１４が機枠４側に固定され、可動１１ｊｔＸ円盤１
５とｆｆ１ｌコイルを備えたローター１６がボールスク
リュー７の上端部に固定されている。可動摩１禦円盤１
５は固定摩擦円盤１４とローター１６の間に位置し、ロ
ーター６に配置したばねで常時、固定Ｉ？擦内円盤４に
押しつけられて付勢されている。The electromagnetic brake 13 is fixed l2IJi1 as shown in FIG.
The disk 14 is fixed to the machine frame 4 side, and the movable disk 11
A rotor 16 with coils 5 and ff1l is fixed to the upper end of the ball screw 7. Movable grinder 1 disk 1
5 is located between the fixed friction disk 14 and the rotor 16, and is always fixed by a spring placed on the rotor 6. It is pressed against the internal disc 4 and is biased.

ただし、可動摩擦円盤１４はローター１６が備えた電磁
コイルが励磁されている間は前記ばねに抗して固定摩擦
円盤１４から引離されている。However, the movable friction disk 14 is separated from the fixed friction disk 14 against the spring while the electromagnetic coil provided in the rotor 16 is excited.

すなわち、この電磁ブレーキ１３は電力が供給されると
制動力を失うもので、この意味で負作動型である。そし
て、実施例の粉末成形機１では、電動モーター６の電源
回路に電磁ブレーキ１３の励磁回路を前記電源回路が遮
断されると励磁回路も同時に遮断されるようにリレー回
路などで関連させである。That is, this electromagnetic brake 13 loses braking force when electric power is supplied, and in this sense, it is of a negative operation type. In the powder molding machine 1 of the embodiment, the excitation circuit of the electromagnetic brake 13 is connected to the power supply circuit of the electric motor 6 by a relay circuit or the like so that when the power supply circuit is shut off, the excitation circuit is also shut off at the same time. .

前記構成において、電動モータ６が駆動されるとボール
スクリュー７が回転し、ボールナット１０を介して可動
盤３が上下移動し、バンチ１１をダイ１２内に押込み、
ダイ１２内部の粉末材料を圧迫して成形し、製品である
圧粉体を得る。In the above configuration, when the electric motor 6 is driven, the ball screw 7 rotates, the movable platen 3 moves up and down via the ball nut 10, and the bunch 11 is pushed into the die 12,
The powder material inside the die 12 is compressed and molded to obtain a green compact as a product.

この場合成形時には従来どおり、ダイ１２の底部がパン
チ１１に対向した今一つの可動パンチあるいは固定パン
チで閉鎖される。In this case, during molding, the bottom of the die 12 is closed, as usual, by another movable punch or a fixed punch opposite the punch 11.

通常の状態で粉末成形が行なわれているとモータ６には
電源が接続されているから、電磁ブレーキ１３の制動力
が解除されており、成形作動に何等の支障も生じない。When powder molding is performed under normal conditions, the motor 6 is connected to the power supply, so the braking force of the electromagnetic brake 13 is released, and no hindrance occurs to the molding operation.

そして、非常時や突然に電動モータ６の電源が遮断され
ると、それと同時にブレーキ１３が作動してボールスク
リュー７の回転が阻止されるので、可動型移動機構全体
の動きが固定される。その結果、可動盤３が自重で落下
する事態が確実に防止される。If the power to the electric motor 6 is cut off suddenly or in an emergency, the brake 13 is activated at the same time to prevent the ball screw 7 from rotating, thereby fixing the movement of the entire movable moving mechanism. As a result, the movable platen 3 is reliably prevented from falling under its own weight.

前記実施例において、電動モータをＡＣサーボモータと
し、制御装置を設ければバンチ１１の下降速度や下降量
などを簡単に細かく制御でき、精密な圧粉体を成形する
ことができる。その場合にももちろん電磁ブレーキ１３
は機能して、可動盤３の自重による落下を確実に阻止す
る。In the above embodiment, if the electric motor is an AC servo motor and a control device is provided, the descending speed and amount of descent of the bunch 11 can be easily and precisely controlled, and a precise green compact can be formed. In that case, of course, the electromagnetic brake 13
functions to reliably prevent the movable platen 3 from falling due to its own weight.

また、前記実施例において電動モータ６で機枠４上に固
定したボールナット１０を駆動する構成とすることもで
きる。この場合はボールスクリュー７が上下に移動でき
る構成を必要とするが、逆に可動盤３側にボールスクリ
ュー７の下端を挿通するための構造を必要としない。Further, in the above embodiment, a configuration may be adopted in which the electric motor 6 drives the ball nut 10 fixed on the machine frame 4. In this case, a structure that allows the ball screw 7 to move up and down is required, but conversely, a structure for inserting the lower end of the ball screw 7 into the movable platen 3 side is not required.

なお、本発明にＪ３いて電磁ブレーキ１３は前記のよう
なディスク形に限らず、０作動で確実な制動力を１ワら
れるものであれば利用することができろ。さらに、本発
明において、可動盤移動機横の０作動電磁ブレーキは、
例えば、手動によって作動させる構成としても良い。In the present invention, the electromagnetic brake 13 in J3 is not limited to the disc type as described above, but any type that can provide a reliable braking force of 1 w with 0 operation can be used. Furthermore, in the present invention, the 0-operation electromagnetic brake next to the movable platen moving machine is
For example, it may be configured to be operated manually.

発明の効果 縦型成形機において可動盤３が自重で落下することによ
る危険を除去できる。Effects of the Invention The danger of the movable platen 3 falling under its own weight in a vertical molding machine can be eliminated.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は断面にて示づ゛要部の所内図、第２図は一部を
破面し所内にて示す正面図である。 １・・・粉末成形機、２・・・固定盤、３・・・可動盤
、４・・・機枠、５・・・ガイドロッド、６・・・電動
モータ、７・・・ボールスクリュー、８・・・出力軸、
９・・・カプリング、１０・・・ボールナット、１１・
・・パンチ、１２・・・ダイ、１３・・・真作！Ｆ、Ｉ
Ｊ　Ｉ　１Ｇブレーキ、１４・・・固定摩擦円盤、１５
・・・可動摩擦円盤、１６・・・ローター。 懺１図FIG. 1 is a cross-sectional view of the main parts of the plant, and FIG. 2 is a partially cutaway front view showing the inside of the plant. DESCRIPTION OF SYMBOLS 1... Powder molding machine, 2... Fixed plate, 3... Movable plate, 4... Machine frame, 5... Guide rod, 6... Electric motor, 7... Ball screw, 8...output shaft,
9...Coupling, 10...Ball nut, 11.
...Punch, 12...Die, 13...Shinsaku! F, I
J I 1G brake, 14...Fixed friction disk, 15
...Movable friction disk, 16...Rotor. Diagram 1

Claims (1)

【特許請求の範囲】[Claims] 下方の固定盤とこれに対し上下移動可能な可動盤を備え
、機枠と可動盤間にボールスクリューとこれに螺合され
たボールナットによる可動盤移動機構が構成されると共
に、該移動機構にその移動を阻止する負作動の電磁ブレ
ーキが設けられていることを特徴とした縦型成形機。A lower fixed platen and a movable platen that can be moved up and down relative to the lower fixed platen are provided, and a movable platen moving mechanism is configured between the machine frame and the movable platen by a ball screw and a ball nut screwed into the ball nut. This vertical molding machine is characterized by being equipped with a negative-action electromagnetic brake that prevents its movement.
JP63067331A 1988-03-23 1988-03-23 Vertical molding machine Expired - Lifetime JP2754210B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63067331A JP2754210B2 (en) 1988-03-23 1988-03-23 Vertical molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63067331A JP2754210B2 (en) 1988-03-23 1988-03-23 Vertical molding machine

Publications (2)

Publication Number Publication Date
JPH01241400A true JPH01241400A (en) 1989-09-26
JP2754210B2 JP2754210B2 (en) 1998-05-20

Family

ID=13341928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63067331A Expired - Lifetime JP2754210B2 (en) 1988-03-23 1988-03-23 Vertical molding machine

Country Status (1)

Country Link
JP (1) JP2754210B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05169151A (en) * 1991-12-16 1993-07-09 Mekatoro Joban Internatl:Kk Punch press
EP1354694A2 (en) * 2002-04-18 2003-10-22 Baltec Maschinenbau Ag Method and apparatus for monitoring a brake for a screw
US7001169B2 (en) 2001-05-11 2006-02-21 Engel Maschinenbau Gesellschaft M.B.H. Machine for processing synthetic materials
ITMI20120052A1 (en) * 2012-01-19 2013-07-20 Unimec S R L ELECTRIC ACTUATOR, PARTICULARLY FOR FOLDING AND SIMILAR PRESSES.
JP2013220475A (en) * 2013-01-24 2013-10-28 Aida Engineering Ltd Slide motion control apparatus for mechanical press
CN104890044A (en) * 2015-06-08 2015-09-09 无锡吉兴汽车声学部件科技有限公司 Transmission punching mechanism of vehicle interior and exterior trimming product die
US9815251B2 (en) 2012-04-13 2017-11-14 Aida Engineering, Ltd. Slide motion control apparatus for mechanical press

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255793A (en) * 1985-05-09 1986-11-13 Sumitomo Heavy Ind Ltd Driving device for high-speed screw press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255793A (en) * 1985-05-09 1986-11-13 Sumitomo Heavy Ind Ltd Driving device for high-speed screw press

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05169151A (en) * 1991-12-16 1993-07-09 Mekatoro Joban Internatl:Kk Punch press
US7001169B2 (en) 2001-05-11 2006-02-21 Engel Maschinenbau Gesellschaft M.B.H. Machine for processing synthetic materials
EP1354694A2 (en) * 2002-04-18 2003-10-22 Baltec Maschinenbau Ag Method and apparatus for monitoring a brake for a screw
EP1354694A3 (en) * 2002-04-18 2005-12-28 Baltec Maschinenbau Ag Method and apparatus for monitoring a brake for a screw
ITMI20120052A1 (en) * 2012-01-19 2013-07-20 Unimec S R L ELECTRIC ACTUATOR, PARTICULARLY FOR FOLDING AND SIMILAR PRESSES.
US9815251B2 (en) 2012-04-13 2017-11-14 Aida Engineering, Ltd. Slide motion control apparatus for mechanical press
US10065386B2 (en) 2012-04-13 2018-09-04 Aida Engineering, Ltd. Slide motion control apparatus for mechanical press
JP2013220475A (en) * 2013-01-24 2013-10-28 Aida Engineering Ltd Slide motion control apparatus for mechanical press
CN104890044A (en) * 2015-06-08 2015-09-09 无锡吉兴汽车声学部件科技有限公司 Transmission punching mechanism of vehicle interior and exterior trimming product die

Also Published As

Publication number Publication date
JP2754210B2 (en) 1998-05-20

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