EP0741001B1 - Präge-Druck- und Stanzmaschine - Google Patents
Präge-Druck- und Stanzmaschine Download PDFInfo
- Publication number
- EP0741001B1 EP0741001B1 EP96105837A EP96105837A EP0741001B1 EP 0741001 B1 EP0741001 B1 EP 0741001B1 EP 96105837 A EP96105837 A EP 96105837A EP 96105837 A EP96105837 A EP 96105837A EP 0741001 B1 EP0741001 B1 EP 0741001B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- machine according
- press
- control
- control program
- 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
- 238000004080 punching Methods 0.000 title claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000009530 blood pressure measurement Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000004049 embossing Methods 0.000 description 23
- 230000008859 change Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000000418 atomic force spectrum Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
Images
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
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0041—Control arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0094—Press load monitoring means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
Definitions
- the invention relates to an embossing printing and punching machine according to the preamble of independent claim.
- EP 596 697 is a hydraulic Sheet metal press with automatic hydraulic pressure control for the deformation of Body panels known.
- the press pressure is controlled by four hydraulic cylinders in the four corners of the press, the pressure values using four sensors can be controlled automatically independently of each other.
- Such slow hydraulic presses with relatively rough hydraulic pressure control However, the requirements of faster, more precise embossing presses can absolutely not meet.
- embossing presses with precise mechanical presses are known, which, however, do not have an automatic pressure force control.
- Embossing presses are usually only at one point of the pressure force measurements Machine and outside of the embossing printing area known.
- this requires elaborate conversions depending on the location of the clichés to estimate the Compressive forces on the embossed image surface.
- these force measurements are inaccurate and unreliable. Influences that change the working pressure and thus the Print quality deteriorate, and therefore cannot be recorded well Changes in the course of a work process can be compensated even less. Uneven pressure distributions on the embossed printing area cannot be recorded become.
- embossing-printing and Punching machine according to claim 1.
- the arrangement of several pressure sensors around Embossed printing area around enables precise pressure force determination and Monitoring.
- the combination of mechanical precision press with the mechanical positioning device with controlled sliding drive with which Pressure control program and with pressure force control through mechanical displacement the positioning device in very small steps in the Y direction enables set optimal working pressures and these also under negative influences of the operation to be kept constant and optimal, so that constant highest embossing quality is achieved.
- the dependent claims relate to advantageous developments of the invention, which further automate, improve and simplify their functions make more reliable.
- the automatic execution of Operations such as touching, keeping working pressure constant and almost any to be able to drive programmable pressure setpoint curves.
- the inventive The machine enables compliance with safety and limit values as well as Detection of uneven, eccentric pressure distribution on the Embossing surface.
- the various variable influences on the Working pressure which deteriorate the quality e.g. due to thermal influences or increasing, permanent deformation or change in thickness of the dressing and due to fluctuations in paper thickness, largely compensated. So that is highest possible and constant embossing quality with minimal operating effort and accessible with the greatest possible security.
- FIG. 1 a shows a side view of an embossing printing and punching machine 1 according to the invention with an upper press part 3 which is held by side supports 6, with an upper support 5, a positioning or displacement device 10 and a press head 9.
- This head 9 carries a tool - Or Clichéplatte 4 with a heater 7, which includes, for example, several individually adjustable heating zones.
- a lower press part 19 here has a toggle lever mechanism with four toggle lever pairs 17, which move a press table 13 up and down by a stroke H of, for example, 80 mm.
- a counterpressure or dressing plate 14 is attached to the table 13, the surface of which forms the embossing printing surface F (ie the maximum usable embossing surface).
- Clichés 8 are attached to the tool plate 4, the surfaces of which define the embossed image area FC (see FIGS. 1b and 2).
- a dressing 15 adapted to the clichés 8 is inserted on the dressing plate 14, which consists, for example, of a 1-2 mm thick, fabric-reinforced plastic plate, of hard laminate, for example Pertinax, or of less hard material such as pressboard or unreinforced plastic.
- the material and layer thickness are adapted to the clichés and the embossed goods.
- the preparation is adjusted in a known manner to optimal embossing quality.
- the optimal embossing pressure or the embossing pressure force X is determined by displacement of the positioning device 10 in the Y direction.
- a drive 20 is a controlled adjustment motor, e.g. a servo motor with incremental encoder and an assigned motor control 21.
- the shift Y takes place via a transmission 16 to a spindle 12, which has a sliding wedge 11 moves.
- the maximum possible displacement range of Y is e.g. 4 mm, which enables different layer thicknesses of dressing and compensate for embossed goods.
- FIG. 1b As shown in Figure 1b as a partial representation of the machine 1 seen from above is, several compressive force sensors S1 to S4 or S5 to S8 around the Center Z of the embossing printing surface F of the plate 14 is arranged around.
- the Compression force measurement takes place e.g. through strain gauges such as strain gauges (DMS) or piezo elements, which are on suitable, under load the chassis elements of the machine that experience significant stretching are attached are.
- strain gauges S1 to S4 on the side beams 6 attached. These could also be attached to the press head 9.
- the pressure forces can also be measured with pressure cells S5 to S8 which e.g. arranged in the four corners under a toggle 17 are as shown in Fig. 1a.
- FIG. 2 shows a further example with a triangular arrangement sensors S9 to S11 and an eccentric arrangement of the clichés or of the embossed image areas FC1 and FC2, which put a higher load on the Side of sensor S9.
- each individual sensor can be considered the maximum allowable Value assigned a safety value XMi and its compliance monitored become.
- X XS1 + XS2 + XS3 + XS4.
- Figure 3 shows a circuit diagram of the machine according to the invention with pressure transducers S1 to S4, which with the pressure control 30 or the machine control 2 are connected.
- the positioning servomotor 20 with motor control 21 is also with the machine control 2 and the pressure control 30 connected.
- To the operating and display device 40 which e.g. as Is designed touch screen, there is a bidirectional communication with the controls 30 and 2.
- a further output 35 can additionally be provided be for bidirectional connection to an external computer, e.g. with a PC, to output operating data and to enter additional data Functions.
- FIG. 4 shows a characteristic that is valid for a specific dressing X1 (Y), i.e. that in function of the displacement Y by the press on the embossing generated compressive force X1.
- This characteristic can be driven automatically and be included if e.g. in the control program following function is entered:
- This characteristic X (Y) is of course dependent on the clichés and the finish (type of material, thickness and size), ie it characterizes this finish and this specific embossing process.
- this characteristic X (Y) of a given dressing changes gradually, for example from curve X1 (Y) in the initial state to curve X2 (Y) after a certain runtime, because the dressing wears out or is compressed more and more over the course of time an embossing.
- the head 9 must therefore be readjusted around the area Y12.
- FIG. 5 shows the course of pressure measurement signals as a function of time t: X1 (t).
- the pressure curve has a broad maximum at top dead center OT.
- the displacement in Y by the adjusting device 10 always takes place without Pressure (i.e. in the area of impression).
- too Zero points of the sensor values adjusted adjusted (adjustment of a zero point drift of the Measurement signals, e.g.
- X1 corresponds to the work value XA, at which the optimal embossing quality is achieved.
- An adjustable and selectable tolerance + XT, -XT is assigned to this work value XA.
- the curve with compressive force value X2 is below the tolerance range XA - XT, the value X3 lies above the tolerance range XA + XT and the curve with pressure force value X4 corresponds to the safety value XM, ie the maximum permissible press pressure.
- FIG. 6 illustrates various influences which change over time Characteristic Y (X) (FIG. 4), or changes in threshold values Y0 (t) and work values YA (t) for given constant compressive force values X0 and XA effect: This is shown with the curves Ytemp, Yzu and Ypap.
- the most varied of operating modes are possible possible. These are stored as functions in the print control program 30 and can be selected via the control and display device 40, or also can be entered externally via output 35. So that can various operating parameters regarding an embossing print job as well Limit values, tolerances, switching values and programmed setpoint curves (see Fig. 8) entered or reprogrammed.
- the press is in the brought top dead center and stopped.
- the pressure measurement takes place here continuously and no longer cyclically as during normal operation the machine in "RUN” mode (see Fig. 5).
- OT is now the adjusting device 10 is automatically shifted, i.e. Y is increased until a Pressure rise is measured.
- a minimum adjustable pressure threshold X0 is reached, the shift Y is stopped and the corresponding one Value Y0, i.e. this position, saved. This is in Fig. 4 shown.
- the actual value of the regulation is preferably determined continuously as the mean value Xm from the n-last pressure force measurements.
- the control difference DX is e.g. 5 - 10 kN and the regulation adjustment step DY e.g. 1 - 2 u.
- a readjustment area YN selected and entered by e.g. YN 0.1 mm.
- YN 0.1 mm.
- a signal is output and the machine is stopped if necessary. Then can the operator decides whether he goes beyond this adjustment range YN should continue - by specifying a new second adjustment range from e.g. 0.05 to 0.1 mm - or whether the dressing changed and restarted shall be.
- Fig. 7 further illustrates which different temporal pressure force profiles X (t) shows.
- the curve X5 (t) runs according to the "REG" mode in a narrow control range between an upper limit XA + DX and a lower limit XA - DX.
- XA + DX a lower limit XA + DX
- XA - DX a lower limit XA - DX
- curve X6 (t) shows the pressure force curve if the displacement Y is kept constant.
- these influences had to be continuously monitored and monitored by the machine operator periodically be compensated by hand by tracking the displacement Y, which corresponds to the curve X7 (t). This was very complex and moreover inaccurate, so that practically only an effectively driven curve X7 (t) with significantly fluctuating pressure force values was achieved.
- the resulting embossed print quality is of course much better in accordance with the new curve X5 (t) with automatic constant control than in the curve X7 (t) that was previously achievable.
- operating errors can also be avoided with the automatic functions and controls of the machine according to the invention.
- the pressure force curve X (t) driven can not only be automatic are kept constant according to curve "REG", but in principle it can also according to any given setpoint curve for the pressure force XX (t) be regulated by corresponding adjustment of the shift Y.
- curve XX1 shows a rapid Increase followed by a slow decrease and finally ending in constant pressure force according to. Operating mode "REG”.
- stamping orders can be determined automatically, more precisely and more comprehensively.
Description
- Fig. 1a
- eine erfindungsgemässe Maschine
- Fig. 1b, 2
- Anordnungen von Druckkraft-Sensoren und exzentrische Belastungen
- Fig. 3
- ein Schaltschema der Maschine
- Fig. 4
- Druckkraft-Verschiebungs-Charakteristiken X(Y)
- Fig. 5
- Beispiele verschiedener Druckkraftwerte
- Fig. 6
- verschiedene Einflüsse auf die Druckkraft-Verschiebungs-Charakteristiken
- Fig. 7
- Beispiele zeitlicher Druckkraftverläufe X(t)
- Fig. 8
- programmierbare Sollwertverläufe der Druckkraft XX(t)
Ein Pressenunterteil 19 weist hier einen Kniehebel-Mechanismus mit vier Kniehebelpaaren 17 auf, welche einen Pressentisch 13 um einen Hub H von z.B. 80 mm auf und ab bewegen. Auf dem Tisch 13 ist eine Gegendruck- oder Zurichtplatte 14 angebracht, deren Fläche die Prägedruckfläche F bildet (d.h. die maximal nutzbare Prägefläche). Auf der Werkzeugplatte 4 sind Clichés 8 angebracht, deren Flächen die Prägebildfläche FC definieren (siehe Fig. 1b und 2). Auf der Zurichtplatte 14 wird eine den Clichés 8 angepasste Zurichtung 15 eingelegt, welche z.B. aus einer 1 - 2 mm dicken gewebeverstärkten Kunststoff-Platte, aus Hartschichtstoff, z.B. Pertinax, oder auch aus weniger hartem Material wie Presspan oder unverstärktem Kunststoff besteht. Dabei werden Material und Schichtstärke den Clichés und dem Prägegut angepasst. Durch lokales Unterlegen dünner Papierschichten, von z.B. 20 um Stärke, wird die Zurichtung in bekannter Art auf optimale Prägequalität eingestellt.
Es muss also der Kopf 9 um den Bereich Y12 nachgestellt werden.
Die Kurve mit Druckkraftwert X2 liegt hier unterhalb des Toleranzbereichs XA - XT,
der Wert X3 liegt über dem Toleranzbereich XA + XT
und die Kurve mit Druckkraftwert X4 entspricht dem Sicherheitswert XM, d.h. dem maximal zulässigen Pressendruck.
und die Taste "REG" gedrückt
und die Y-Verstellung freigegeben ist,
dann wird der Sollwert Xsoll = XA mit dem Istwert = Mittelwert Xm verglichen:
Xm = 1/5 der Summe der letzten fünf Messwerte X beträgt.
Die resultierende Prägedruckqualität wird natürlich gemäss der neuen Kurve X5(t) mit automatischer Konstantregelung wesentlich besser als gemäss bisheriger erreichbarer Kurve X7(t). Überdies können mit den automatischen Funktionen und Kontrollen der erfindungsgemässen Maschine auch noch Bedienungsfehler vermieden werden.
Claims (13)
- Präge-Druck- und Stanzmaschine mit einer Maschinensteuerung (2), einem Pressenoberteil (3) und einer gesteuerten Einstellvorrichtung, sowie mit einem Pressenunterteil (19) mit mehreren Drucksensoren (S1 - S4) zur Messung von Druckkräften X, welche um das Zentrum Z der Druckfläche F herum angeordnet sind, mit einem Drucksteuerprogramm mit Funktionen zur Druckkraftsteuerung und mit einem zugeordneten Bedienungs- und Anzeigegerät (40), gekennzeichnet durch einen Pressenoberteil mit einer Heizung (7), einer Werkzeugplatte (4) zum Befestigen von Clichés (8)und eine mechanische Positioniervorrichtung (10), welche einen mechanischen Verschiebeantrieb (20) mit zugeordneter Motorsteuerung (21) zum vertikalen Verschieben der Werkzeugplatte in Y-Richtung aufweist,durch einen Pressenunterteil mit einer mechanischen Kniehebelpresse (17) mit genau definiertem Hub (H)und einer Gegendruckplatte (14) mit einer Zurichtung (15) als Unterlage von zu beprägenden Druckbogen,wobei das Drucksteuerprogramm (30) vorgebbare Druckdifferenzwerte (DX) und/oder Nachstellschritte (DY) für die Regelung des Druckkraftwertes X aufweistund wobei die Druckkraftsteuerung durch mechanische Verschiebung der Positioniervorrichtung (10) in Y-Richtung erfolgt.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass vier Drucksensoren (S1 - S4), je einer Ecke der Präge-Druckfläche F zugeordnet, an der Maschine angeordnet sind.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass als Drucksensoren Dehnungsmessstreifen (DMS) auf tragenden Teilen (6) des Pressenoberteils (3) angebracht sind.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Positioniervorrichtung einen Verschiebekeil (11) und einen geregelten Verstellmotor oder Servomotor (20) aufweist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm (30) verschiedene am Bedienungsgerät (40) wählbare Betriebsarten (REG, TOUCH) aufweist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm (30) eine Funktion "Touchieren" (TOUCH) aufweist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm (30) eine Funktion "Arbeitswert konstant halten" (REG) aufweist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm (30) eine Funktion "Druck-Sollwertverläufe (XX1, XX2) ansteuern" aufweist.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm feste oder vorgebbare Sicherheitswerte (XM, XMi), Grenzwerte und/oder Toleranzbereiche (XT) enthält.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass das Drucksteuerprogramm vorgebbare Schaltwerte (XT, DY) enthält, bei denen Sekundärfunktionen wie Maschinenstopp oder Warnsignale ausgelöst werden.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Drucksteuerung eine Dreipunktregelung aufweist, mit einer Regeldifferenz DX und einem Verschiebungs-Nachstellschritt DY, wobei der Ist-Wert laufend als Mittelwert Xm aus den letzten n Druck-Messungen gebildet wird.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass ein wählbarer Nachstellbereich YN einstellbar ist, dessen Erreichung ein Signal auslöst.
- Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Drucksteuerung einen bidirektionalen Ausgang (35) für einen externen Rechner aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH27995 | 1995-05-04 | ||
CH279/95 | 1995-05-04 | ||
CH127995 | 1995-05-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0741001A2 EP0741001A2 (de) | 1996-11-06 |
EP0741001A3 EP0741001A3 (de) | 1997-02-26 |
EP0741001B1 true EP0741001B1 (de) | 2002-02-06 |
Family
ID=4206711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96105837A Expired - Lifetime EP0741001B1 (de) | 1995-05-04 | 1996-04-13 | Präge-Druck- und Stanzmaschine |
Country Status (2)
Country | Link |
---|---|
US (1) | US5746122A (de) |
EP (1) | EP0741001B1 (de) |
Cited By (3)
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DE102011055630A1 (de) | 2010-12-06 | 2012-06-06 | Foliotec Gmbh | Kniehebelpresse mit Verstellvorrichtung für ein Werkzeugteil |
DE202013102487U1 (de) | 2013-06-11 | 2013-07-03 | Karl Marbach Gmbh & Co. Kg | Stanzmaschine mit reduzierter dynamischer Verformung durch optimierte Krafteinleitung |
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CH711441A1 (de) | 2015-08-21 | 2017-02-28 | Gietz Ag | Flachprägedruckmaschine. |
AT518684B1 (de) * | 2016-06-01 | 2018-05-15 | Stiwa Holding Gmbh | Verfahren zum Pressen eines Werkstückes mit einer vorbestimmten Presskraft |
JP6742255B2 (ja) * | 2017-02-15 | 2020-08-19 | 住友重機械工業株式会社 | プレス装置 |
JP6953268B2 (ja) * | 2017-10-13 | 2021-10-27 | 蛇の目ミシン工業株式会社 | 電動プレス、サンプリング間隔決定装置、サンプリング間隔決定方法およびプログラム |
DE102018108733B4 (de) * | 2018-04-12 | 2021-11-25 | Omag Service GmbH | Antriebsvorrichtung für eine Presse oder Stanze und Presse oder Stanze |
CN108858457A (zh) * | 2018-06-21 | 2018-11-23 | 深圳市鑫赛自动化设备有限公司 | 一种冲切模高度微调机构 |
CN110802974A (zh) * | 2019-10-18 | 2020-02-18 | 安徽静深实业有限公司 | 一种电子产品生产用外壳压花装置 |
CN110883212B (zh) * | 2019-12-18 | 2021-04-23 | 太仓韬信信息科技有限公司 | 一种板材的连续冲压成型方法 |
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US3889515A (en) * | 1974-07-22 | 1975-06-17 | Nat Machinery Co | Wedging structure for presses or the like |
DE3241063A1 (de) * | 1982-11-06 | 1984-05-10 | Siegfried Ing.(grad.) 7321 Börtlingen Schwarz | Verfahren und einrichtung zur ueberwachung der kraefte an stanzpressen o. dgl. |
JPS6031092U (ja) * | 1983-08-09 | 1985-03-02 | シ−ケ−デイ株式会社 | 端子圧着機 |
DE3475889D1 (en) * | 1984-02-03 | 1989-02-09 | Schuler Gmbh L | Pressure control apparatus in presses |
JPS63281800A (ja) * | 1987-05-12 | 1988-11-18 | Mitsubishi Heavy Ind Ltd | プレス機械の金型ソフトタツチ制御方法 |
US5119311A (en) * | 1988-07-14 | 1992-06-02 | Coors Brewing Company | Monitor and control assembly for use with a can end press |
DE8813774U1 (de) * | 1988-11-03 | 1990-03-01 | Otto Kaiser Gmbh & Co Kg, 7518 Bretten, De | |
EP0459224B1 (de) * | 1990-05-31 | 1995-08-16 | Siemens Aktiengesellschaft | Verfahren zum Betrieb einer Presse |
US5231923A (en) * | 1991-07-12 | 1993-08-03 | Sintogokio Ltd. | Press apparatus used for manufacturing a liquid crystal panel |
JP3169247B2 (ja) * | 1991-12-03 | 2001-05-21 | 株式会社石井工作研究所 | プレス機械の加圧力自動制御方法とその装置 |
EP0580833B1 (de) * | 1992-01-07 | 1996-09-04 | Signature Technologies, Inc. | Verfahren und vorrichtung zum steuern einer presse |
JPH0655300A (ja) * | 1992-08-07 | 1994-03-01 | M Tex Matsumura Kk | プレス荷重の測定方法 |
DE69331974T2 (de) * | 1992-11-05 | 2003-01-23 | Toyota Motor Co Ltd | Verfahren und vorrichtung zur regelung überprüfung oder optimierung des zylinderstiftendrucks einer presse durch flüssigkeits oder anfangsdruckausstoss |
US5578159A (en) * | 1993-06-29 | 1996-11-26 | Hitachi Techno Engineering Co., Ltd. | Hot press for producing multilayer circuit board |
JPH07195391A (ja) * | 1993-12-28 | 1995-08-01 | Hitachi Techno Eng Co Ltd | ホットプレス |
-
1996
- 1996-04-13 EP EP96105837A patent/EP0741001B1/de not_active Expired - Lifetime
- 1996-05-03 US US08/642,438 patent/US5746122A/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011055630A1 (de) | 2010-12-06 | 2012-06-06 | Foliotec Gmbh | Kniehebelpresse mit Verstellvorrichtung für ein Werkzeugteil |
DE102011055630B4 (de) * | 2010-12-06 | 2014-12-04 | KH Foliotec GmbH | Kniehebelpresse mit Verstellvorrichtung für ein Werkzeugteil |
DE202013102487U1 (de) | 2013-06-11 | 2013-07-03 | Karl Marbach Gmbh & Co. Kg | Stanzmaschine mit reduzierter dynamischer Verformung durch optimierte Krafteinleitung |
CN110421087A (zh) * | 2019-09-05 | 2019-11-08 | 台州弘锐精密机械有限公司 | 一种立式数控冲压机顶升脱模机构 |
Also Published As
Publication number | Publication date |
---|---|
US5746122A (en) | 1998-05-05 |
EP0741001A2 (de) | 1996-11-06 |
EP0741001A3 (de) | 1997-02-26 |
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