EP0980727A2 - Dispositif associé à un vilebrequin pour générer le mouvement d' une part montée sur un coulisseau, la part pouvant mouvoir par rapport à ce coulisseau - Google Patents

Dispositif associé à un vilebrequin pour générer le mouvement d' une part montée sur un coulisseau, la part pouvant mouvoir par rapport à ce coulisseau Download PDF

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Publication number
EP0980727A2
EP0980727A2 EP99114317A EP99114317A EP0980727A2 EP 0980727 A2 EP0980727 A2 EP 0980727A2 EP 99114317 A EP99114317 A EP 99114317A EP 99114317 A EP99114317 A EP 99114317A EP 0980727 A2 EP0980727 A2 EP 0980727A2
Authority
EP
European Patent Office
Prior art keywords
slide
gear
cam
wheel
disc
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
EP99114317A
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German (de)
English (en)
Other versions
EP0980727B1 (fr
EP0980727A3 (fr
Inventor
Werner Dipl.-Ing.(FH) Gödtner
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.)
Wafios AG
Original Assignee
Wafios AG
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
Application filed by Wafios AG filed Critical Wafios AG
Priority to DE29923474U priority Critical patent/DE29923474U1/de
Publication of EP0980727A2 publication Critical patent/EP0980727A2/fr
Publication of EP0980727A3 publication Critical patent/EP0980727A3/fr
Application granted granted Critical
Publication of EP0980727B1 publication Critical patent/EP0980727B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 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.
  • the first embodiment of the device according to the invention is shown.
  • she serves as a drive for a stamp-side ejector plunger 62, which is a single 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 46, 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 device according to the invention for driving the ejector plunger 62 of a forming press arranged on the die side.
  • the output gear 38 meshes with a take-off gear 72, which is rotatably mounted above the gear 38 on a bolt 74 which in turn is fastened in a bearing 76 on the press slide 12.
  • 1 and 2 attached to the driven gear 38 cam is 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 fastened to an arm 88 of a two-armed roller lever 90.
  • the lever 90 itself is pivotally mounted on the press slide 12 on a bolt 92. The free end of the lever 90 acts to carry out the ejection movement on an ejector plunger 62 'which corresponds in design and function 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 band-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 jammed so that a wire feed occurs.
  • the clamping force required for this is via a spring holder 166 attached to the slide 124, from a compression spring 166 via the roller lever 156 exerted on the wire 122.
  • the course of the cam 152 is chosen 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.
  • the sixth embodiment of the device according to the invention shown in FIGS. 7 and 8 can be used when there are relatively high work cycles on the forming machine or multi-stage press e.g. safe and precise workpiece delivery after the ejector plunger is ejected as well as the secure holding of the workpieces on the tools concerned or on the relevant tools of the individual stations is required.
  • the workpieces are e.g. after evaluation in a known manner from gripper fingers assigned to each other in pairs, e.g. known from DE 40 02 347 A1 Transfer device captured in one work station and to another work station for subsequent processing operations transferred.
  • a drive arranged on the crank pin 20 'of the crankshaft 14' rotates for this purpose
  • Drive gear 22 ' directly to an output gear 38' without an intermediate gear.
  • the output gear 38 ' is non-rotatably connected to an eccentric bolt 174 mounted in the press slide 12'.
  • Das protruding central middle part 176 of the eccentric pin on both sides of the driven gear 38 ' 174 engages in a suitable bore of two crank rods 26 ', 28', for mounting the Output gear 38 'in the crank rods 26' and 28 '.
  • crankshaft 14 ' When the crankshaft 14 'rotates, the driven gear 38' moves the press slide 12 ', driven from the eccentric 178 of the pin 174 like another crank mechanism with a certain stroke, in addition to that which is introduced into the press slide 12 'via the crank rods 26' and 28 ' Carriage stroke.
  • the ends of the crank rods 26 '28' perform a circular relative movement around the bearing 180 of the eccentric 178 in the press slide 12 '.
  • the two carriage movements are as a curve in path-time diagrams drawn in, the dashed curve 190 the course of movement of the press slide 12 'out of the rotation of the crankshaft 14' and the dash-dotted line 192 den additionally initiated course of movement of the press slide 12 'through the eccentric 178 of the eccentric bolt 174 represents.
  • the third, drawn in full in the diagrams Curve 194 is the mechanical addition of the two vibrations generated (curve 190, 192) which result from the two movements introduced into the press slide 12 '.
  • An initial condition is e.g. the shift of the two sine waves on the abscissa of the diagrams (displacement angle ⁇ , with respect to the angle of rotation of the crankshaft 14 ') or the gear ratio i of the drive gear 22 'to the output gear 38'.
  • a gear ratio i 2 ins Fast selected so that the eccentric 178 of the bolt 174 a double sinusoidal Crankshaft sine wave generated.
  • a cam 44' '(Fig. 8) connected in a rotationally fixed manner to the driven gear 38 'via the central part 176 of the eccentric bolt 174, and it drives one of the ejector plungers 62 (Fig. 2) or 62 '(Fig. 3 or 4).
  • the curve profile of the cam 44 ′′ is at the superimposed movement profile 194 of the press slide 12 'adjusted so that the workpieces are precise and timely ejected and taken over by the gripper fingers, not shown, of the transfer device can be.
  • the central middle part 176 of the eccentric bolt extends 174 in the two correspondingly shaped halves of the bearing 180 in the press slide 12 ', which received the two halves of the eccentric 178 which are spaced apart, and above out.
  • the eccentric halves are then laterally in the two projections of the eccentric bolt 174 Press slide 12 'available, which is freely rotatably mounted on this on its two outer sides Rollers or the like. Interact for the back and forth movement of the carriage 12 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Transmission Devices (AREA)
EP99114317A 1998-08-20 1999-07-21 Dispositif associé à un vilebrequin pour générer le mouvement d' une part montée sur un coulisseau, la part pouvant mouvoir par rapport à ce coulisseau Expired - Lifetime EP0980727B1 (fr)

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 true EP0980727A2 (fr) 2000-02-23
EP0980727A3 EP0980727A3 (fr) 2000-06-21
EP0980727B1 EP0980727B1 (fr) 2001-10-31

Family

ID=7878120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114317A Expired - Lifetime EP0980727B1 (fr) 1998-08-20 1999-07-21 Dispositif associé à un vilebrequin pour générer le mouvement d' une part montée sur un coulisseau, la part pouvant mouvoir par rapport à ce coulisseau

Country Status (3)

Country Link
EP (1) EP0980727B1 (fr)
DE (2) DE19837756C1 (fr)
DK (1) DK0980727T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030592A1 (fr) * 2000-10-12 2002-04-18 Schuler Pressen Gmbh & Co. Kg Systeme ejecteur pour une presse
DE202011104223U1 (de) 2011-05-13 2011-11-02 Ledwell S.R.O. Leuchte, insbesondere Reflektor, mit ausgerichtetem Lichtfluss
CN114737347A (zh) * 2022-04-01 2022-07-12 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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521041A1 (de) 1995-06-09 1996-12-12 Volker Dipl Ing Wengenroth Vorrichtung zur Steuerung von Hilfseinrichtungen in einem oszillierenden Pressenstössel von Ein- und Mehrstufenpressen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521041A1 (de) 1995-06-09 1996-12-12 Volker Dipl Ing Wengenroth Vorrichtung zur Steuerung von Hilfseinrichtungen in einem oszillierenden Pressenstössel von Ein- und Mehrstufenpressen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002030592A1 (fr) * 2000-10-12 2002-04-18 Schuler Pressen Gmbh & Co. Kg Systeme ejecteur pour une presse
DE202011104223U1 (de) 2011-05-13 2011-11-02 Ledwell S.R.O. Leuchte, insbesondere Reflektor, mit ausgerichtetem Lichtfluss
CN114737347A (zh) * 2022-04-01 2022-07-12 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

Also Published As

Publication number Publication date
DK0980727T3 (da) 2001-12-17
DE59900372D1 (de) 2001-12-06
DE19837756C1 (de) 2000-04-06
EP0980727B1 (fr) 2001-10-31
EP0980727A3 (fr) 2000-06-21

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