EP2844456A1 - Pulverpresse - Google Patents
PulverpresseInfo
- Publication number
- EP2844456A1 EP2844456A1 EP13719715.8A EP13719715A EP2844456A1 EP 2844456 A1 EP2844456 A1 EP 2844456A1 EP 13719715 A EP13719715 A EP 13719715A EP 2844456 A1 EP2844456 A1 EP 2844456A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press according
- die
- drive
- electric motor
- receptacle
- 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
Links
Classifications
-
- 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
- B30B1/26—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 cams, eccentrics, or cranks
-
- 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
- B30B1/26—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 cams, eccentrics, or cranks
- B30B1/28—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 cams, eccentrics, or cranks the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
-
- 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! a press for the production of compacts of powdered material, which is pressed by counteracting punch in a die, with a receptacle for a lower punch, the fixed to a support frame Gestel! is supported, with a crank-driven drawbars movable receptacle for an upper punch and with a drive device for the die.
- Such a powder press is known through use.
- the upper punch of this known powder press is moved by vertical tie rods, which are articulated via connecting rods to eccentric.
- the eccentrics are located in a Hauptwelie housed in a solvedteii the powder press, which is driven by a worm gear. Accordingly, the vertical position of the upper punch and the rotational angle of the main shaft are in a sinusoidal or cosinusoidal relationship.
- the powder press operates according to the so-called triggering method, i. In order to release the produced compact, the die is moved downwards after the press process, so that the lower punch presses the compact out of the die. To move the die is a hydraulic drive.
- the invention has for its object to provide a new powder press of the type mentioned, which allows a more precise control of the movement of the die.
- the powder press according to the invention which achieves this object is characterized in that the driving device for the die comprises at least one electromechanical drive unit.
- the driving device for the die comprises at least one electromechanical drive unit.
- an upper punch moved by crank-driven tie rods and an eccentrically moving die are combined with one another.
- the electromechanical drive permits a movement of the die exactly matched to the movement of the upper punch.
- the electromechanical drive preferably has at least one electric motor, in particular a torque motor, which generates a torque which is constant over almost the entire speed range.
- the electromechanical drive comprises at least one screw drive, wherein the threaded rod of the screw drive is preferably arranged coaxially to the rotor of the electric motor and the rotor is expediently in direct drive connection with the threaded drive, in particular the threaded rod of the screw drive, if necessary ., About a high-load spinning call coupling.
- the rotor of the electric motor can be a hollow shaft, within which, in a further advantageous embodiment of the invention, the screw drive can at least partially be arranged to save space.
- the threaded rod of a screw is mounted on a Schauniusengesteli the powder press axially and radially, Advantageously holds this storage by the thread catch to be transferred loads in both axial directions away from the electric motor.
- the storage may be, for example an axial Pendelroileniagerung,
- the Gewindefrieb itself preferably umutzf a roller, ball "or planetary rolling-Ge winds tion,
- a measuring system for direct measurement of the position of the die is provided. orzugswesse beyond a rotary encoder detects the speed of the electric motor.
- the rotary encoder koaxiai is arranged to the electric motor.
- a cooling in particular a water cooling is provided for the atrizenanfrieb, which prevents heating of the electric motor, in particular at high operating clock frequency, and thus enables higher performance in continuous operation.
- the skilledhoff can also be provided a braking device which counteracts unwanted rotations of the screw in the de-energized state of the electric motor.
- a control which sets the position of the die in dependence on the angular position of the crank mechanism of the Switzerlandstongen or directly the position of the upper punch on the basis of a predetermined, preferably freely programmable relationship between the positions concerned.
- the abovementioned measuring system for direct measurement of the position of the die and the rotary encoders detecting the rotational speed of the electric motor are, in addition to a rotary encoder which detects the angular position of the crank drive, components of this control.
- FIG. 2 shows a representation of the pressing process in the powder press of FIG. 1
- Fig. 3 is an assembly used in the powder press of Fig. 1 for driving the die.
- a powder press shown in Fig. 1 has a can be set up on a support base 1 support frame frame. From a cuboid shaped main sock! 2 of the Collinsrahmengesteiis extend vertical support columns. 3 in the main base 2, a main shaft 5 is housed near the base bottom with Exentern at their ends, to the eccentric each a connecting rod ⁇ is articulated.
- the connecting rods 6 are in articulated connection with drawbars 7 extending vertically along the vertical support columns 3.
- a rotary encoder (not shown) senses the angular position of this crank mechanism.
- the main shaft 5 can be rotated by means of a Hochfeistungsschneckengetriebes 8 about its horizontal axis, the high-performance worm gear 8 is in driving connection with a not shown Antriebsrnotor.
- the tie rods 7 are connected via a rod head in conjunction with a receptacle 1 which can be moved vertically by the tie rods 7 for an upper punch 1 2 shown in FIG. 2.
- the adjustment of the position of the upper punch 1 2 relative to the rod end 10 is achieved by means of an adjusting device 13 change.
- a device shown at 1 4 generates an additional in the pressing direction movement, which is freely programmable in their power
- a receptacle 1 6 for a die 7 is arranged between the receptacle 1 1 for the upper punch 1 2 and a receptacle 9 for a lower punch 1 5 .
- the lower punch 15 and the die 1 7 are shown as the upper punch 1 2 in Fig. 2.
- the receptacle 9 for the lower punch 1 5 is fixed and supported by the Hopkinsöuien 3 of the Rothrahmengesfells
- the receptacle 1 6 for the die 1 7 can, however, move vertically over guided rods 18.
- Torquernotor 1 9. which drives a coaxial to the motor axis of rotation threaded catch 20, Die
- the comprehensive Torquernotor and Gewindefrieb assembly is shown separately in Fig. 3.
- the buffer 21 rests against a plate 22, which is rigidly connected to the mafric pickup 16 via the guided rods 18.
- An anti-rotation device 23 engaged with the plate 22 ensures that no torque is introduced into the matrice receptacle 1 6.
- de threaded rod 20 is fixed to the Tfägerrahmengesfeii by bearings not shown radially and axially, so that it is radially and in both axial directions resilient and the Torquernotor 19 is relieved vertically.
- the Sezugsiere 26 indicates a measuring device, which directly determines the vertical position of the die holder 16 and the die 17.
- the die 17 will be filled with powder material 27 (not shown), with the die 17, upper punch 12 and lower punch 15 mutually assuming the position shown in Fig. 2a.
- both the upper punch i 2 and the die 1 7 are moved downward, while the lower punch i 5 remains in place and Steep. 2b shows the positions of the punches and the die at the end of the pressing process
- the die 17 is further lowered while the upper punch 12 moves upwards again, in the positions of the punches and the die shown in Fig. 2c the compact 28 is free and can be removed from the powder press.
- the Torquernotor 19 provides each for the associated vertical movements of the die 1 7, wherein by rotation of the threaded rod 20, the nut 21 moves vertically linear and the movement of the nut is transferred via the plate 22 and the bars 8 to the female seat 6 and therewith the die 1 7,
- the movement of the die 1 7 is dependent on the signal of the above
- the control is based on a predetermined, in the apparatus shown freely programmable relationship between the position of the die and this position.
- the control device calculates specifications for the detectable by the measuring device 26 position of the die in dependence on the position of the rod head 1 ⁇ . by the die] 7 must be moved by the torque motor 1 in both vertical directions, the Axiaüagerung 24, which in the illustrated Tinsbeispie! is an axial pendeirole bearing loaded in both vertical directions.
- a braking device not shown prevents rotation of the threaded rod 20 in the de-energized state of the torque motor 1,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012103807A DE102012103807A1 (de) | 2012-05-02 | 2012-05-02 | Pulverpresse |
| PCT/DE2013/100133 WO2013163988A1 (de) | 2012-05-02 | 2013-04-11 | Pulverpresse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2844456A1 true EP2844456A1 (de) | 2015-03-11 |
| EP2844456B1 EP2844456B1 (de) | 2022-09-28 |
Family
ID=48236627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13719715.8A Active EP2844456B1 (de) | 2012-05-02 | 2013-04-11 | Pulverpresse |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2844456B1 (de) |
| DE (1) | DE102012103807A1 (de) |
| WO (1) | WO2013163988A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3536493A1 (de) * | 2018-03-05 | 2019-09-11 | Arcofil S.A. | Elektrische presse mit torquemotor |
| CN111496247B (zh) * | 2020-06-03 | 2024-08-30 | 荆州九菱科技股份有限公司 | 一种汽车启动机开关用铁芯的坯体压制装置及压制方法 |
| CN118168884B (zh) * | 2024-05-14 | 2024-08-16 | 中国科学院过程工程研究所 | 粉料压样和检测送样装置 |
| CN120869992A (zh) * | 2025-07-24 | 2025-10-31 | 江西一创新材料有限公司 | 一种电池级碳酸锂成分检测装置及检测方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01104500A (ja) * | 1987-10-14 | 1989-04-21 | Hitachi Metals Ltd | プレスの成形条件自動補正装置 |
| DE4114880A1 (de) * | 1990-05-09 | 1991-11-14 | Komage Gellner & Co Maschinenf | Presse zum verpressen pulverfoermiger massen |
| JP3029151B2 (ja) * | 1991-08-31 | 2000-04-04 | ファナック株式会社 | 電動式粉末成形機 |
| DE10011859C2 (de) * | 2000-03-10 | 2002-05-29 | Carsten Winter | Einpressvorrichtung |
| AT507470B1 (de) * | 2008-10-16 | 2010-08-15 | Trumpf Maschinen Austria Gmbh | Antriebsvorrichtung für den druckbalken einer biegepresse |
| EP2311587A1 (de) * | 2009-10-13 | 2011-04-20 | Osterwalder AG | Pulverpresse |
| DE102009055739B4 (de) * | 2009-11-26 | 2021-01-14 | Langenstein & Schemann Gmbh | Umformmaschine, insbesondere Servopresse |
| EP2603334B1 (de) * | 2010-08-16 | 2018-04-25 | Schuler Pressen GmbH | Ziehpresse mit statischer blechhaltung |
-
2012
- 2012-05-02 DE DE102012103807A patent/DE102012103807A1/de not_active Withdrawn
-
2013
- 2013-04-11 WO PCT/DE2013/100133 patent/WO2013163988A1/de not_active Ceased
- 2013-04-11 EP EP13719715.8A patent/EP2844456B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2844456B1 (de) | 2022-09-28 |
| DE102012103807A1 (de) | 2013-11-07 |
| WO2013163988A1 (de) | 2013-11-07 |
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