EP0980727B1 - Einrichtung an einer Schubkurbel, zum Erzeugen einer Bewegung eines am Schieber gelagerten Teiles relativ zu diesem - Google Patents
Einrichtung an einer Schubkurbel, zum Erzeugen einer Bewegung eines am Schieber gelagerten Teiles relativ zu diesem Download PDFInfo
- Publication number
- EP0980727B1 EP0980727B1 EP99114317A EP99114317A EP0980727B1 EP 0980727 B1 EP0980727 B1 EP 0980727B1 EP 99114317 A EP99114317 A EP 99114317A EP 99114317 A EP99114317 A EP 99114317A EP 0980727 B1 EP0980727 B1 EP 0980727B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- gear ring
- gear
- cam
- thrust crank
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
Definitions
- the invention relates to a device on a slide crank, for generating a movement of a part mounted on the slide relative to this, according to the generic term of claim 1.
- the device known from DE 195 21 041 A1 closest prior art is intended to reduce this mechanical outlay.
- This device is used to control auxiliary devices such as stamp ejector pins and wipers or stamp holders in an oscillating press ram of single and multi-stage presses.
- a cam disk which is firmly seated on the crank pin of a crankshaft of a forming press controls a pressure tappet sliding inside the connecting rod, its movement is introduced into the forming tool via a spring plunger, as a result of which the production part passes through the spring plunger end is ejected from the forming tool.
- the cam describes here also one revolution with a crankshaft revolution with respect to the pressure tappet.
- the point of contact between the pressure tappet and the spring tappet lies in the pivot point of the bearing bolt that connects the connecting rod to the press ram.
- the invention is based on the object, the above. Eliminate disadvantages, and a spinning To get motion.
- the device according to the invention can be used universally and large transmission forces can direct flow of force into the work movement required. Because besides the tool movement no other sliding movements, only rotational movements when initiating the movement occur, the device according to the invention operates with extremely little wear.
- All movements can be generated, which result from a rotary movement via corresponding Gear can be derived.
- crank disc (12) This means that a rotary movement of the crank disc (12) is not only one of the crank radius, but also from the gear ratio (e.g. 2: 1) of the stationary gear (18) to the rotatable gear (25) dependent pivoting movement of the crank arm (15) relative to the rotated crank disc (12) results.
- this known transmission does not extend over the crank arm (15) on the articulated carriage (4) so that a movement is generated on the carriage (Slide) mounted part (e.g. straight guide 28) relative to the slide not provided at all is.
- she serves as a drive for a stamp-side ejector plunger 62, which in a crank mechanism or multi-stage press is integrated.
- a press slide 12 is guided so that it can be pushed back and forth, the task of which is by means of slide-side forming tools and stationary dies from workpiece blanks, if necessary, gradually finished workpieces, e.g. Screws, bolts and the like to manufacture.
- crankshaft 14 To drive the press slide 12, a crankshaft 14 is provided, which in a not shown Main crankshaft bearing is mounted. This drives two via an eccentric crank pin 20 Push rods 26, 28 which engage a pin 18 mounted in the slide 12. On the Crank pin 20 of the crankshaft 14 rotatably arranged in a drive gear 22, which is in the In contrast to the push rods 26, 28 rotates all round.
- crank rod 26 connects above the drive gear 22.
- the other crank rod 28 is arranged below the gear wheel 22 following a spacer bush 30.
- the Drive gear 22 meshes with an intermediate gear 34, which rotates freely on a pin 36 is mounted, which is fixed in the crank rods 26, 28.
- the intermediate gear 34 is with a Output gear 38 is engaged at the end of the crank rods remote from the crank pin 20 26, 28 is mounted on a pin 18.
- a cam 44 is connected in a rotationally fixed manner to the gear wheel 38, which is freely rotatable on the pin 18.
- the cam 44 rotating in the press slide 12 acts to decrease a lifting movement on a cam roller 46, which is rotatably mounted on a pin 48, which is at the lower end a roller lever 50 is attached.
- the other end of the roller lever 50 is on a bolt 54 pivoted, which is fixed in a roller lever bearing 56 on the press slide 12.
- the lower The end of the roller lever 50 abuts the ejector tappet 62 with its side surface 58.
- the ejector ram 62 is driven oscillatingly by the roller lever 50.
- the ejector plunger 62 is in one rear bearing bushing 64 and a front bearing bushing 66, this bearing bushing 66 forms the counter bearing for a coil spring 68.
- the force of the spring 68 becomes the ejector tappet 62 and the cam roller 46 pressed against the control cam 44.
- Fig. 3 shows as a second modified embodiment of the drive device according to the invention of the ejector plunger 62 of a forming press arranged on the stamp.
- the output gear 38 meshes with a take-off gear 72, which is above the gear 38 is rotatably mounted on a pin 74, which in turn is in a bearing 76 on the press slide 12 is attached.
- cam 44 here replaced by a cam 44 ', which is now firmly connected to the take-off gear 72.
- the cam disc 44 ' acts on a cam roller 82 which is rotatably mounted on a pin 84, which is attached to an arm 88 of a two-armed roller lever 90.
- the lever 90 itself is on Press slide 12 pivotally mounted on a pin 92.
- the free end of the lever 90 acts Execution of the ejection movement on an ejector plunger 62 ', the execution and function corresponds to that of the first embodiment.
- the gear transmission 22, 34, 38 became the first and second replaced by a toothed belt gear 96.
- a drive toothed disk 98 arranged in a rotationally fixed manner.
- An output toothed disk 100 can be rotated on the pin 18 in alignment with this toothed disk 98 stored.
- a toothed belt 102 connects both toothed pulleys 98 and 100.
- the output gear 106 has approximately the same outer diameter here as the driven toothed disk 100. Both thus coincide in Figure 4 in their outline.
- the output gear 106 meshes with that on the press slide 12 mounted gear 72, the arrangement and function, as well as the other parts of the device 44 ', 82 to 92 and 62' to 68 correspond to the device shown in FIG. 3.
- toothed pulleys 98 and 100 and the toothed belt 102 could of course also a sprocket set and a chain can be used as a chain gear.
- the removal gear 72 is with a drive bevel gear 110 firmly connected, which drives an output bevel gear 112.
- the driven bevel gear 112 is on one Shaft 114 rotatably supported, which in a bearing block 116 seated on the press slide 12 is rotatably mounted.
- FIG. 6 shows the fifth embodiment of the invention. It is used when clamping wire or band material 122 on a carriage 124 which e.g. as a feed carriage in a wire or tape-processed machine is used.
- This stroke adjustment is achieved in a known manner in that a drive crank 128 has a T-slot 130, which is in a T-slot guide 132 from the center of the drive crank 128 away or vice versa via an adjusting screw 136 after loosening a fastening nut 138 is adjusted.
- the T-slot nut 130 is bolt-shaped, with on its Round part 134, which represents the crank pin, corresponding to FIG. 4, a drive toothed disk 142 is arranged rotatably.
- a push rod 144 mounted, the other end of which is articulated with the carriage 124 via a bolt 146 connected is.
- An output toothed disk 148 is rotatably arranged on the bolt 146.
- a timing belt 150 connects both toothed disks 142 and 148.
- With the driven toothed disk 148 is one Cam 152 rotatably connected, the one rotatably arranged on a roller lever 156 Cam roller 158 actuated.
- the roller lever 156 is pivotable in the carriage 124 on a bolt 160 stored.
- a holding jaw 162 With the roller lever 156, a holding jaw 162 is connected, the one to be retracted Wire or tape 122 during the retraction movement of the carriage 124 against a counter-holding jaw 164 is clamped so that a wire feed occurs.
- the clamping force required for this becomes via a spring holder 166 attached to the slide 124, from a compression spring 168 via the roller lever 156 exerted on the wire 122.
- the course of the cam 152 is selected so that during the carriage return, the wire 122 is released from the movable holding jaw 162.
- step-up and / or step-down ratio can be installed in all of the embodiments shown become.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Transmission Devices (AREA)
Description
- Fig. 1
- eine erste Ausführungsform in Vorderansicht zur Steuerung des Auswerferstößels einer Umformpresse
- Fig.2
- eine Draufsicht auf die Ausführungsform von Fig. 1 in teilweise abgebrochener Darstellung
- Fig. 3
- eine zweite Ausführungsform in Vorderansicht zur Steuerung des Auswerferstößels
- Fig. 4
- eine dritte Ausführungsform in Vorderansicht zur Steuerung des Auswerferstößels
- Fig. 5 x
- eine vierte Ausführungsform in Vorderansicht zur Steuerung einer weiteren, nur angedeuteten Arbeitsbewegung
- Fig. 6
- eine fünfte Ausführungsform in Vorderansicht zur Steuerung einer Drahtklemmeinrichtung z.B. bei einem Einzugsschlitten einer dratverarbeitenden Maschine
Claims (10)
- Schubkurbel mit einer Einrichtung zum Erzeugen einer Bewegung eines am Schieber (12;124) gelagerten Teiles (38;100;148) relativ zu diesem, welche von dem Kurbelzapfenumlauf um die Kurbelwellenachse abgeleitet und entlang der Schubstange (26,28;144) auf das zwangsweise bewegbare Teil übertragen wird, von dem eine Arbeitsbewegung abgeleitet wird, dadurch gekennzeichnet,daß zum Erzeugen einer Drehbewegung jenes Teiles (38; 100; 148) am Schieber (12; 124) um eine einzige Drehachse, die an diesem und an der Schubstange (26,28;144) angeordnet ist, eine Transmission aus umlaufenden Teilen (22, 34, 38; 98, 100, 102; 150, 142, 148) an der Schubstange (26, 28; 144) vorgesehen ist.
- Schubkurbel nach Anspruch 1, dadurch gekennzeichnet, daß die Transmission einen auf dem Kurbelzapfen (20; 134) festsitzenden, antreibenden Zahnkranz (22; 142) und einen auf dem, schubstange (26, 28; 144) und Schieber (12; 124) verbindenden Drehgelenkzapfen (18; 146) gelagerten, abtreibenden Zahnkranz (38; 148) als zwangsweise bewegbares Teil sowie mindestens ein beide Zahnkränze verbindendes, umlaufendes Teil (34; 102; 150) aufweist.
- Schubkurbel nach Anspruch 2, dadurch gekennzeichnet, daß als verbindendes Transmission-Teil ein zwischen den zwei Zahnkränzen (22 und 38) an der Schubstange (26, 28) drehbar gelagerter Zahnkranz (34) vorgesehen ist, der mit den beiden anderen Zahnkränzen (22 und 38) kämmt.
- Schubkurbel nach Anspruch 2, dadurch gekennzeichnet, daß als verbindendes Transmission-Teil ein Zahnriemen (102; 150) oder eine Kette vorgesehen ist, der bzw. die von beiden Zahnkränzen (22, 38; 142, 148) umgelenkt wird.
- Schubkurbel nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der Drehgelenkzapfen (18; 146) die Kurvenscheibe (44; 152) eines am Schieber (12; 124) angeordneten Kurvengetriebes trägt, welche mit dem koaxialen abtreibenden Zahnkranz (38; 148) drehfest verbunden ist.
- Verwendung einer Schunkurbel nach Anspruch 5 zum gleichzeitigen Hin- und Herbewegen eines Stößels (62) relativ zum bewegten Schieber (12), wobei die Kurvenscheibe (44) den Zwangslauf einer Kurvenrolle (46) an einem Rollenhebel (50) kraftschlüssig steuert, welcher schwenkbar am Schieber (12) gelagert ist und den Stößel (62) gegen die Rückstellkraft einer Feder (68) beaufschlagt (Fig. 1).
- Verwendung einer Schubkurbel nach einem der Ansprüche 2 bis 4 zum Drehen eines Zahnkranzes (72) relativ zum bewegten Schieber (12), wobei dieser die Drehbewegung des abtreibenden Zahnkranzes (38) abnehmende Zahnkranz (72) mit dem abtreibenden Zahnkranz oder mit einem koaxialen Zahnkranz (106) kämmt, der mit dem abtreibenden Zahnkranz drehfest verbunden ist (Fig. 3 und 5 bzw. 4).
- Verwendung nach Anspruch 7, bei der zum gleichzeitigen Hin- und Herbewegen eines Stößels (62') relativ zum bewegten Schieber (12) dieser die Kurvenscheibe (44') eines am Schieber (12) angeordneten Kurvengetriebes trägt, welche mit dem koaxialen abnehmenden Zahnkranz (72) drehfest verbunden ist, wobei die Kurvenscheibe (44') den Zwangslauf einer Kurvenrolle (82) an einem Rollenhebel (90) kraftschlüssig steuert, welcher drehbar am Schieber (12) gelagert ist und den Stößel (62') gegen die Rückstellkraft einer Feder (68) beaufschlagt (Fig. 3 und 4).
- Verwendung nach Anspruch 7, bei der zum gleichzeitigen Drehen einer Arbeits-Welle (114) mit einer Achse parallel zur Bewegungsrichtung des Schiebers (12) relativ zum bewegten Schieber der abnehmende Zahnkranz (72) und die Arbeits-Welle (114) mittels eines Zahnradgetriebes (110, 112) gekoppelt sind (Fig. 5).
- Verwendung einer Schubkurbel nach Anspruch 5 zum Betätigen einer mit dem Schieber (124) bewegbaren, gleichzeitig steuerbaren Vorrichtung (162 und 164) zum Klemmen von Draht- oder Bandmaterial (122), das einer materialbearbeitenden Maschine zuzuführen ist, wobei die Kurvenscheibe (152) den Zwangslauf einer Kurvenrolle (158) an einem gefederten Rollenhebel (156) kraftschlüssig steuert, welcher schwenkbar am Schieber (124) gelagert ist und eine Haltebacke (162) der Klemmvorrichtung trägt, deren Gegenhaltebacke (164) am Schieber (124) stationär angeordnet ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29923474U DE29923474U1 (de) | 1998-08-20 | 1999-07-21 | Einrichtung an einer Schubkurbel, zum Erzeugen einer Bewegung eines am Schieber gelagerten Teiles relativ zu diesem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19837756A DE19837756C1 (de) | 1998-08-20 | 1998-08-20 | Einrichtung, um eine Drehbewegung von der Kurbelwelle in einen kurbelwellengetriebenen Schlitten einzuleiten |
DE19837756 | 1998-08-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0980727A2 EP0980727A2 (de) | 2000-02-23 |
EP0980727A3 EP0980727A3 (de) | 2000-06-21 |
EP0980727B1 true EP0980727B1 (de) | 2001-10-31 |
Family
ID=7878120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114317A Expired - Lifetime EP0980727B1 (de) | 1998-08-20 | 1999-07-21 | Einrichtung an einer Schubkurbel, zum Erzeugen einer Bewegung eines am Schieber gelagerten Teiles relativ zu diesem |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0980727B1 (de) |
DE (2) | DE19837756C1 (de) |
DK (1) | DK0980727T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10050618C2 (de) * | 2000-10-12 | 2003-04-24 | Schuler Pressen Gmbh & Co | Auswerfersystem für eine Presse |
CZ22371U1 (cs) | 2011-05-13 | 2011-06-13 | Ledwell S.R.O. | Svítidlo, zejména reflektorové, s usmerneným tokem svetla |
CN114737347B (zh) * | 2022-04-01 | 2023-02-28 | 江西泽晞新材料有限公司 | 一种人造革加工用花纹印制设备及其使用方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1864599U (de) * | 1959-11-14 | 1962-12-27 | Schuler L Ag | Kurbel- oder exzenterantrieb fuer einen stoessel bei pressen, stanzen od. dgl. |
DE2812695C3 (de) * | 1978-03-23 | 1981-02-19 | Hatebur Umformmaschinen Ag, Basel (Schweiz) | Vorrichtung zum stempelseitigen Auswerfen eines Preßlings auf einer Querförderpresse zur spanlosen Metallumformung |
US4334436A (en) * | 1980-08-21 | 1982-06-15 | F. Jos. Lamb Company | Bearing arrangement for oscillating shafts |
DE3412147A1 (de) * | 1984-03-31 | 1985-10-10 | Form + Test Seidner + Co GmbH, 7940 Riedlingen | Vorrichtung zur umwandlung einer drehbewegung in translatorische bewegungen |
DE19521041C2 (de) * | 1995-06-09 | 1999-06-24 | Volker Dipl Ing Wengenroth | Kurbelpresse mit Steuerung von Hilfseinrichtungen in einem oszillierenden Pressenstössel von Ein- oder Mehrstufenpressen |
JPH1162649A (ja) * | 1997-08-19 | 1999-03-05 | Yoshihiro Ishikawa | ピストンピン・クランクピン間の距離が変わる内燃機関 |
AUPO885297A0 (en) * | 1997-09-01 | 1997-09-25 | Bresland, Claude Neil | Compression engine |
-
1998
- 1998-08-20 DE DE19837756A patent/DE19837756C1/de not_active Expired - Fee Related
-
1999
- 1999-07-21 DK DK99114317T patent/DK0980727T3/da active
- 1999-07-21 DE DE59900372T patent/DE59900372D1/de not_active Expired - Fee Related
- 1999-07-21 EP EP99114317A patent/EP0980727B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0980727A2 (de) | 2000-02-23 |
EP0980727A3 (de) | 2000-06-21 |
DE59900372D1 (de) | 2001-12-06 |
DE19837756C1 (de) | 2000-04-06 |
DK0980727T3 (da) | 2001-12-17 |
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