EP0773846B1 - Vorrichtung zur herstellung von presskörpern - Google Patents
Vorrichtung zur herstellung von presskörpern Download PDFInfo
- Publication number
- EP0773846B1 EP0773846B1 EP95925708A EP95925708A EP0773846B1 EP 0773846 B1 EP0773846 B1 EP 0773846B1 EP 95925708 A EP95925708 A EP 95925708A EP 95925708 A EP95925708 A EP 95925708A EP 0773846 B1 EP0773846 B1 EP 0773846B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punches
- die
- control system
- punch
- drives
- 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
- 230000033001 locomotion Effects 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 2
- 239000012254 powdered material Substances 0.000 abstract 1
- 239000012255 powdered metal Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 7
- 238000007654 immersion Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
- B22F5/085—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs with helical contours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Definitions
- the invention relates to a device for the production of compacts with cylindrical main form elements and helical Secondary shaped elements according to the preamble of claim 1.
- a device for the production of compacts with cylindrical main form elements and helical Secondary shaped elements according to the preamble of claim 1.
- it is the manufacture of helical gears Gears, where the helical teeth as secondary form elements can be seen.
- a generic device is known from EP 0 528 761 A1 for the production of compacts, for example in the form of helical gears made of metal powder.
- This well-known Metal powder press has a linearly movable upper piston, in which is rotatable about the longitudinal axis (lying in the pressing direction) Upper stamp is stored, and one against a lower stop also linearly movable lower piston, in which a lower punch is rotatably mounted. Furthermore, a die plate is provided, which forms the mold cavity and can also be moved linearly in the press cycle is.
- the rotatable lower stamp and the rotatable upper stamp have one each with the tooth profile (helical toothing) of the Corresponding to the matrix shell (i.e. the mold space) Gear profile on.
- the lower stamp is freely rotatable constantly engaged with the profile of the molding space and therefore rotates accordingly inevitable if it is too linear in the press cycle Relative movements between lower punch and die plate comes.
- the upper punch during the press cycle one of the helical gears according to its depth of penetration corresponding rotational movement forced from the outside to the Friction between the outer surfaces of the upper punch and the mold space of the die.
- a gear transmission is provided for this purpose, the one of the desired helical teeth of the compact appropriate mechanical backdrop control is driven.
- the Backdrop control includes so-called backdrop cores, on the one hand rigidly connected to a guide plate and on the other hand positively and sliding in the coaxially arranged drive wheels of the Gear transmission are guided.
- the Guide plate temporarily coupled to the die plate and moved together with this. For shaping the compact produced the so-called deduction procedure is applied.
- the object of the invention is therefore a generic device to improve in such a way that the mentioned problem of friction also is solved satisfactorily with respect to the lower stamp, the required tool and changeover effort for the production different compacts should remain as low as possible.
- An essential feature of the invention is that the shape of the helical secondary form elements of the compact to be produced directly involved upper and lower punches (e.g. with gears with several axially consecutive toothings can be made accordingly several lower or upper stamps may be required) in their movement in the Form space of the die are guided by an electronic control.
- the rotational movement of the lower and upper stamps as a function of their depth of immersion in the mold space is therefore no longer achieved by a mechanical coupling of linear and rotary drive, i.e.
- one embodiment of the invention provides that the axial and rotary movement of the punch is position-controlled he follows. To determine the respective axial and rotary Position are corresponding sensors (e.g.
- the electronic control for the movement of the or Upper stamp can be set up so that the outside of the mold space Only a purely linear movement takes place and that the required rotational movement in the press cycle only with the Plunging into the mold space. In this case it is advisable the upper stamp or stamps with a comparatively soft springy Storage that is limited by a stop to provide for the Acceleration process when starting the rotary movement to provide sufficient time.
- the position or Torque control only comes into force when the upper punch occurs drove the stop. This will damage the tool Avoid immersion.
- Position control of the movement sequences is not always necessary to implement the invention.
- the rotational movement sequences of the upper and lower punches take place with fixed, for example constant, torque values.
- the rotary drives of the upper and lower punches are set in the pressing phase so that the tooth flanks of the punches and die casing touch as far as possible only on the side that otherwise lacks a rotary drive while the punches are retracted into the mold cavity would not be exposed to friction.
- the torque applied from the outside thus acts in the direction of the rotational movement otherwise forced by the shape.
- S is the tool game in the forehead cut. For a 30 ° toothing and a tool play of 0.03 mm results, for example ⁇ ⁇ 0.05 mm.
- the Rotary drives can also be operated hydraulically. You can in some cases also be pneumatic. Especially Electromotive rotary drives are recommended, in particular electric stepper or servo motors.
- the invention can be expedient in connection with a CNC-controlled powder press To run. It is particularly advantageous to the essential mechanical Parts of the device according to the invention (punch, die, rotary drives) to be designed as an interchangeable unit in the form of a tool adapter, to enable particularly short changeover times.
- the invention has the great advantage that it can be used to manufacture e.g. helical gears with extremely low tool wear allows because the friction in the tooth flanks during the Press phase and also kept to a minimum during molding can be.
- the conversion effort can also be compared to previously known Pressing tools can be significantly reduced because of the effect of rotary drives only program-technical precautions (none Production of backdrop cores) are required.
- the The device according to the invention enables the production of pressed bodies, which have a significantly more uniform density distribution than this was previously possible.
- This hydraulic press has a press frame 16, which with an upper piston 14 and a lower piston 15 is equipped. About in the In the middle of the press frame 16, a die 1 is stationary and non-rotatable stored. There is an upper punch 2 in the upper piston 14 and 15 in the lower piston a lower punch 3 each rotatably mounted.
- the upper stamp 2 is through a biased spring 9, which the receiving device for the Upper punch 2 presses in the pressing direction against a fixed stop, against the pressing direction resiliently stored.
- the spring force of the spring Deflection is limited by a stop is in any case significantly smaller than the maximum pressing force for each Tool, so that the upper stamp at the beginning of the Pressing stops.
- the jacket of the die 1 and the two Stamps 2, 3 have mutually corresponding helical teeth on.
- two measuring systems 10, 11 are provided, which e.g. as Incremental dipstick or linear potentiometer can be formed.
- a rotary drive 5 or 7 e.g. electric servo motor
- the stamps 2, 3 have measuring devices 12a, 13a for detecting the torsional moment that occurs.
- the two Rotary drives 5, 7 are each via a spur gear with one of the two stamps 2 and 3 connected in terms of drive technology.
- two servo proportional valves 4, 6 are provided for positioning of the two pistons 14, 15 of the press.
- the press shown has one electronic control 8 (framed with dashed lines), which in itself is hierarchical and consists of a CNC main processor 21, each a control unit 19 or 20 for the linear movement of the upper piston 14 or the lower piston 15 and a control unit 17 or 18 for the rotary movement of the two stamps 2 and 3.
- the Input / output unit of the CNC main processor 21 for control and The press is set up by the operating personnel at 22.
- the IT linkage of the electronic components and sensors is symbolically represented by corresponding arrows.
- the two control units 19, 20 are the CNC main processor 21 and Control units 17, 18 for the rotary movement as slave one of each two control units 19 and 20 for the linear piston movement subordinate.
- the control unit 19 is in the example shown as Master subordinate to control unit 20 (submaster), i.e. that the Movement of the upper piston 14 and thus the movement of the upper punch 2 was used as a reference variable for the movement sequence.
- the combined angle and torque measuring system 12 forms together with the Rotary drive 5 and the control unit 17 a closed control loop, the control unit 17 receiving its setpoint from the control unit 19 of the linear drive of the piston 14 according to its current from Position measuring system 10 receives the detected axial position.
- the CNC main processor 21 takes over higher-level regulation and control functions as well as Processing of the default data for the part to be manufactured.
- Inside the press frame 16 is by a dashed frame indicated which main functional parts of the device according to the invention in the form of a tool adapter to an easily replaceable, with Upper and lower pistons 14, 15 connectable unit can be summarized can.
- the illustrated press works as follows:
- the lower punch 3 After shaping a compact, the lower punch 3 becomes corresponding the helix angle of the helical gear to be manufactured below Use of the rotary drive 7 position-controlled due to the Position measuring system 11 and the angle measuring system 12 actual values determined in the filling position is lowered.
- the lower stamp 3 remains in immersed the mold space of the die 1.
- the upper stamp 3 is located above the molding space. After filling the mold space with steel powder is the upper stamp 2 by means of the control unit 19 based on the data of the Position measuring system 10 moved down in a position-controlled manner.
- the angle measuring system 12 and Rotary drive 5 a coordinated rotary movement of the upper punch 2 initiated so that the relative rotational position of the upper punch 2 to Gearing contour of the mold space of the die 1 a non-contact Immersion of the upper punch 2 allowed in the molding space. That starts the actual pressing phase in which the introduced steel powder is compressed.
- the rotary drives 7 and 5 for a Minimizing the friction between the punches 2, 3 and the die 1 to care.
- the two angle measuring systems 12, 13 also as instrument clusters are set up to record the drive torque or alternatively also a position control of the rotary drive 5, 7 Torque control depending on the axial position of the punch 2, 3 take place.
- the generated compact the drive system of the upper punch 2nd switched, d. H.
- the upper punch 2 becomes linear and rotary position-controlled according to the contour of the compact from the Forming space moved out, with the lower piston 3 at the same time according to position-controlled driving upwards until its upper end face is flush with the top of the die 1, the Press body is thus exposed (ejection process).
- the molding can be shaped in a targeted manner under a desired load being held.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
- Nonmetallic Welding Materials (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Control Of Presses (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
Claims (15)
- Vorrichtung zur Herstellung von Preßkörpern mit zylinderförmigen Hauptformelementen und schraubenlinienförmigen Nebenformelementen aus pulverförmigem Material, insbesondere aus Metallpulver, mit einer Matrize (1) und mit mindestens einem um seine Längsachse drehbar gelagerten Oberstempel (2) sowie mindestens einem um seine Längsachse drehbar gelagerten Unterstempel (3), wobei die Stempel (Oberstempel (2) und Unterstempel (3)) axial relativ zur Matrize (1) motorisch angetrieben verfahrbar sind und der mindestens eine Oberstempel (2) zur Erzielung einer schraubenlinienförmigen Bewegung zusätzlich zu seinem Axialantrieb rotatorisch um seine Längsachse angetrieben ist,
dadurch gekennzeichnet,daß eine elektronische Steuerung (8) vorgesehen ist,daß der mindestens eine Unterstempel (3) ebenfalls rotatorisch angetrieben ist unddaß die motorischen Rotationsantriebe der Stempel (2, 3) jeweils von den Antrieben für die Axialbewegung der Stempel (2, 3) mechanisch entkoppelt sind und separat durch die Steuerung (8) regelbar sind, wobei die an der Formgebung der schraubenlinienförmigen Nebenformelemente des zu erzeugenden Preßkörpers unmittelbar beteiligten Ober- und Unterstempel in ihrer Bewegung im Formraum der Matrize durch die elektronische Steuerung geführt sind. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß das Eintauchen des mindestens einen Oberstempels (2) in den Formraum der Matrize (1) hinsichtlich der axialen und der rotatorischen Bewegung positionsgeregelt erfolgt. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß der mindestens eine Oberstempel (2) bis zum Eintauchen in den Formraum der Matritze (1) nur linear (d.h. ohne Drehbewegung) bewegt wird, und daß der mindestens eine Oberstempel (2) axial gefedert gelagert ist (Federung 9). - Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Rotationsbewegungen der Stempel (2, 3) während des Verdichtungsvorgangs positionsgeregelt erfolgen. - Vorrichtung nach einem der Ansprüche 2 bis 3,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Rotationsbewegungen der Stempel (2, 3) während des Verdichtungsvorgangs mit vorgegebenen Drehmomentwerten erfolgen. - Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Drehmomentwerte jeweils in Abhängigkeit von der aktuellen Preßkraft, dem aktuellen Torsionsmoment oder der axialen Position der betreffenden Stempel (2, 3) geregelt sind. - Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Rotationsbewegungen der Stempel (2, 3) jeweils mit einem zeitlich konstanten Drehmomentwert erfolgen. - Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Rotationsantriebe der Stempel (2, 3) entsprechend dem Steigungswinkel der Schraubenlinie und dem Werkzeugspiel zwischen dem jeweiligen Ober- (2) und Unterstempel (3) einerseits und der Matrize (1) andererseits kurz vor Erreichen der Preßendstellung abgeschaltet werden. - Vorrichtung nach einem der Ansprüche 4 bis 7,
dadurch gekennzeichnet,daß die Steuerung (8) in der Weise eingerichtet ist, daß die Rotationsbewegungen der Stempel (2, 3) für das Befüllen der Matrize (1) und das Ausformen des Preßkörpers steuerungstechnisch in teilweise entsprechend umgekehrter Weise wie für das Verdichten erfolgt (Ausstoßverfahren). - Vorrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet,daß die Axialantriebe der Stempel (2, 3) hydraulisch sind. - Vorrichtung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,daß für die Rotationsbewegungen hydraulische oder pneumatische Antriebe vorgesehen sind. - Vorrichtung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,daß für die Rotationsbewegungen elektromotorische Antriebe (5, 6), insbesondere elektrische Schritt- oder Servomotoren vorgesehen sind. - Vorrichtung nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet,daß sie Teil einer CNC-gesteuerten Pulverpresse ist. - Vorrichtung nach einem der Ansprüche 1 bis 13,
dadurch gekennzeichnet,daß ihre mechanischen Teile (1, 2, 3) einen in eine Presse einsetzbaren Werkzeugadaptor bilden. - Vorrrichtung nach einem der Ansprüche 1 bis 14,
dadurch gekennzeichnet,daß die Matritze (1) starr gelagert ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4428842 | 1994-08-02 | ||
| DE4428842A DE4428842C1 (de) | 1994-08-02 | 1994-08-02 | Vorrichtung zur Herstellung von Preßkörpern |
| PCT/DE1995/000954 WO1996004087A1 (de) | 1994-08-02 | 1995-07-13 | Vorrichtung zur herstellung von presskörpern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0773846A1 EP0773846A1 (de) | 1997-05-21 |
| EP0773846B1 true EP0773846B1 (de) | 1998-08-26 |
Family
ID=6525700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95925708A Expired - Lifetime EP0773846B1 (de) | 1994-08-02 | 1995-07-13 | Vorrichtung zur herstellung von presskörpern |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5906837A (de) |
| EP (1) | EP0773846B1 (de) |
| JP (1) | JP4331793B2 (de) |
| CN (1) | CN1074699C (de) |
| AT (1) | ATE170115T1 (de) |
| DE (3) | DE4428842C1 (de) |
| ES (1) | ES2120218T3 (de) |
| RU (1) | RU2113940C1 (de) |
| WO (1) | WO1996004087A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992690A (zh) * | 2015-01-16 | 2016-10-05 | 小林工业株式会社 | 模具装置 |
| EP4737030A1 (de) | 2024-10-30 | 2026-05-06 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Vorrichtung und verfahren zum pressen von metallpulvern zur herstellung von schrägverzahnten zahnrädern |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT406240B (de) * | 1996-06-20 | 2000-03-27 | Miba Sintermetall Ag | Formwerkzeug zum pressen eines formkörpers aus einem sinterpulver |
| US5865239A (en) * | 1997-02-05 | 1999-02-02 | Micropump, Inc. | Method for making herringbone gears |
| US6338289B1 (en) | 1998-06-02 | 2002-01-15 | New Bright Industrial Co., Ltd. | Gear box having plastic helical gears and L-shaped axles |
| ES2248065T3 (es) * | 1999-03-18 | 2006-03-16 | Korsch Ag | Prensa con bancada rotativa dotada de punzones intercambiables. |
| US8211359B2 (en) * | 1999-07-29 | 2012-07-03 | Beane Glenn L | Method, system, and computer program for controlling a hydraulic press |
| DE19940701C2 (de) * | 1999-08-27 | 2002-02-07 | Fette Wilhelm Gmbh | Rundlaufpresse |
| KR20010086905A (ko) * | 2000-03-04 | 2001-09-15 | 김영정 | 양압 성형시스템 |
| DE10142772C2 (de) * | 2001-08-31 | 2003-09-25 | Fette Wilhelm Gmbh | Verfahren zur Herstellung von Pressteilen in einer Pulverpresse |
| DE10212315B4 (de) * | 2002-03-20 | 2004-04-29 | Wilhelm Fette Gmbh | Wegmeßsystem für eine Pulverpresse |
| US7367791B2 (en) * | 2004-11-19 | 2008-05-06 | Aichi Steel Corporation | Device for producing annular or arcuate magnet |
| DE102006015022B4 (de) * | 2006-03-31 | 2008-03-27 | Dieffenbacher Gmbh + Co. Kg | Hydraulischen Presse für die Kunststoff- und Metallverarbeitung |
| EP1849590B1 (de) * | 2006-04-29 | 2013-05-15 | Fette GmbH | Presse |
| DE102008027567A1 (de) * | 2008-06-10 | 2009-12-17 | Schaeffler Kg | Prägeeinheit einer Montagevorrichtung für Gelenke |
| DE102008054922A1 (de) * | 2008-12-18 | 2010-06-24 | Robert Bosch Gmbh | Vorrichtung zum Abfüllen und Verdichten rieselfähiger Produkte |
| FR2951989B1 (fr) * | 2009-10-30 | 2012-02-03 | Medelpharm | Installation pour la realisation d'un produit solide a partir d'un ou de plusieurs materiaux pulverulents |
| US8246415B2 (en) | 2009-11-18 | 2012-08-21 | New Bright Industrial Co., Ltd. | Gear box for use in toy vehicles |
| DE102012010767A1 (de) * | 2012-05-31 | 2013-12-05 | Fette Compacting Gmbh | Presse |
| EP2853322A1 (de) * | 2013-09-30 | 2015-04-01 | Seco Tools AB | Presse zur Herstellung eines Werkzeug-Grünkörpers mit einer spiralförmigen Nut, Verfahren zur Herstellung eines Werkzeug-Grünkörpers mit einem spiralförmigen Nut, und Werkzeug-Grünkörper mit einer spiralförmigen Nut |
| DE102013114693A1 (de) * | 2013-12-20 | 2015-06-25 | Fette Engineering GmbH | Stopfstempelstation und Verfahren zum Füllen von Kapseln in einer Stopfstempelstation |
| CN103706786B (zh) * | 2013-12-24 | 2016-01-13 | 北京国药龙立自动化技术有限公司 | 等密度压机的压制脱模方法 |
| CN104708000A (zh) * | 2015-03-18 | 2015-06-17 | 上海瑞伯德智能系统科技有限公司 | 一种金属粉末电动压机的压制动作控制方法 |
| CN105077545A (zh) * | 2015-08-27 | 2015-11-25 | 安徽宏锦包装设备有限公司 | 一种半球形锅巴成型机的压料装置 |
| CN105533785A (zh) * | 2016-01-12 | 2016-05-04 | 安徽宏锦包装设备有限公司 | 一种半球锅巴成型机的成型压料装置 |
| DE102016120195A1 (de) | 2016-10-24 | 2018-04-26 | Dorst Technologies Gmbh & Co. Kg | Presseneinrichtung |
| DE102017004803A1 (de) * | 2017-05-18 | 2018-11-22 | Cosateq Gmbh | Verfahren zum Betrieb einer Pulverpresse mit Lagenregelung und Pulverpresse zur Ausführung des Verfahrens |
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| JP7044407B2 (ja) * | 2020-07-22 | 2022-03-30 | 小林工業株式会社 | 粉末成形体の製造装置、粉末成形体の製造方法、粉末成形体由来の工具の製造方法、及び粉末成形体由来の工具 |
| CN112373103A (zh) * | 2020-11-20 | 2021-02-19 | 广东一欣科技有限公司 | 一种艾柱压制成型装置 |
| CN116213725B (zh) * | 2023-02-28 | 2025-01-24 | 洛阳汇晶新材料科技有限公司 | 一种高致密度钼靶材制作设备及制作工艺 |
| CN120421511B (zh) * | 2025-06-27 | 2025-11-07 | 江苏杰佑金属制品有限公司 | 一种便于维护的粉末冶金压制设备 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE759661A (fr) * | 1969-12-01 | 1971-04-30 | Hitachi Powdered Metals Cy Ltd | Dispositif de compression de poudre pour former un engrenage helicoidalcomprime |
| US3677672A (en) * | 1970-03-12 | 1972-07-18 | Chrysler Corp | Apparatus for the manufacture of powder metal helical gears |
| IT958783B (it) * | 1972-05-04 | 1973-10-30 | Olivetti & Co Spa | Dispositivo per la formatura di ruo te dentate elicoidali mediante com pressione di polveri |
| IT976216B (it) * | 1972-12-29 | 1974-08-20 | Olivetti & Co Spa | Dispositivo di formatura di pezzi elicoidali mediante compattazione di materiali in polvere |
| US3891367A (en) * | 1973-05-08 | 1975-06-24 | Olivetti & Co Spa | Apparatus for moulding helical gears by compression of powders |
| DE2508065A1 (de) * | 1975-02-25 | 1976-09-02 | Metal Compacting Tools Ltd | Presswerkzeug fuer pulvermassen |
| JPH04136107A (ja) * | 1990-09-25 | 1992-05-11 | Sumitomo Electric Ind Ltd | 焼結斜歯歯車の成形装置 |
| JPH05195011A (ja) * | 1991-08-17 | 1993-08-03 | Werkzeugbau Alvier Ag | 螺旋形状の輪郭を有する工作物をプレス成形するモジュラー装置 |
| DE4209767C1 (de) * | 1992-03-23 | 1993-05-06 | Mannesmann Ag, 4000 Duesseldorf, De |
-
1994
- 1994-08-02 DE DE4428842A patent/DE4428842C1/de not_active Expired - Fee Related
-
1995
- 1995-06-07 DE DE29509762U patent/DE29509762U1/de not_active Expired - Lifetime
- 1995-07-13 US US08/776,371 patent/US5906837A/en not_active Expired - Fee Related
- 1995-07-13 EP EP95925708A patent/EP0773846B1/de not_active Expired - Lifetime
- 1995-07-13 DE DE59503369T patent/DE59503369D1/de not_active Expired - Lifetime
- 1995-07-13 RU RU97103329A patent/RU2113940C1/ru not_active IP Right Cessation
- 1995-07-13 ES ES95925708T patent/ES2120218T3/es not_active Expired - Lifetime
- 1995-07-13 AT AT95925708T patent/ATE170115T1/de active
- 1995-07-13 WO PCT/DE1995/000954 patent/WO1996004087A1/de not_active Ceased
- 1995-07-13 JP JP50608296A patent/JP4331793B2/ja not_active Expired - Fee Related
- 1995-07-13 CN CN95194316A patent/CN1074699C/zh not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992690A (zh) * | 2015-01-16 | 2016-10-05 | 小林工业株式会社 | 模具装置 |
| CN105992690B (zh) * | 2015-01-16 | 2017-07-28 | 小林工业株式会社 | 模具装置 |
| EP4737030A1 (de) | 2024-10-30 | 2026-05-06 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Vorrichtung und verfahren zum pressen von metallpulvern zur herstellung von schrägverzahnten zahnrädern |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29509762U1 (de) | 1995-09-21 |
| RU2113940C1 (ru) | 1998-06-27 |
| WO1996004087A1 (de) | 1996-02-15 |
| ES2120218T3 (es) | 1998-10-16 |
| DE59503369D1 (de) | 1998-10-01 |
| ATE170115T1 (de) | 1998-09-15 |
| CN1154082A (zh) | 1997-07-09 |
| EP0773846A1 (de) | 1997-05-21 |
| US5906837A (en) | 1999-05-25 |
| CN1074699C (zh) | 2001-11-14 |
| JP2002500701A (ja) | 2002-01-08 |
| DE4428842C1 (de) | 1996-01-18 |
| JP4331793B2 (ja) | 2009-09-16 |
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