EP3938196A1 - Stanzpresse - Google Patents
StanzpresseInfo
- Publication number
- EP3938196A1 EP3938196A1 EP19718349.4A EP19718349A EP3938196A1 EP 3938196 A1 EP3938196 A1 EP 3938196A1 EP 19718349 A EP19718349 A EP 19718349A EP 3938196 A1 EP3938196 A1 EP 3938196A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting rods
- eccentric shaft
- crankshaft
- punch press
- press according
- 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
- 238000004080 punching Methods 0.000 title claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims abstract description 49
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 210000000056 organ Anatomy 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000004049 embossing Methods 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
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
- B30B15/0064—Counterbalancing means for movable press elements
-
- 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
- B30B1/02—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 lever mechanism
- B30B1/06—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 lever mechanism operated by cams, eccentrics, or cranks
Definitions
- the present invention relates to a
- a punching press is known from CH 581 281 A5, in which the drive movement for the counterweights for vertical mass balancing is tapped on the pressure tabs of the ram drive, while the drive movement for the horizontal mass balancing is taken from the connecting rod directly above the eccentric shaft is tapped.
- the object is therefore to provide a technical solution which does not have the aforementioned disadvantage of the prior art or at least partially avoids it.
- This relates to a punching press with a crank or eccentric drive, which has a crankshaft or eccentric shaft and associated active connecting rods according to the claims for generating the stroke movement of the press ram. Furthermore, the punch press has counterweights to balance the vertical and horizontal inertia forces which are generated during operation by the movements of the ram drive and the ram.
- the punch press is designed in such a way that the horizontal drive movements required for the horizontal mass compensation are picked up directly on the crankshaft or eccentric shaft, preferably on the side of the crankshaft or eccentric shaft.
- "On the side of the crankshaft or eccentric shaft” means that the horizontal movements of a crank pin or an eccentric of the crankshaft or eccentric shaft directly in the area between two horizontal planes, which from below and from above to the crankshaft or Adjacent eccentric shaft, it is tapped at the crank pin or eccentric.
- the construction according to the invention can prevent any vibrations occurring during operation of the components serving for horizontal mass balancing from being transmitted to the press ram and thereby negatively influencing the cutting or embossing process.
- the punch press is designed in such a way that the drive movements required for vertical mass balancing are picked up directly on the crankshaft or eccentric shaft, preferably above the crankshaft or eccentric shaft.
- “Above the crankshaft or eccentric shaft” means that the vertical movements of a crankshaft pin or an eccentric of the crankshaft or eccentric shaft directly in the area between two vertical planes which adjoin the crankshaft or eccentric shaft on both sides, above the The crankshaft or eccentric shaft is tapped on the crank pin or eccentric.
- the punch press is preferably designed in such a way that the drive movements required for horizontal mass balancing are tapped via components on the crankshaft or eccentric shaft and transferred to the balancing weights, which are formed separately from the components used for the ram drive. In this way, a maximum decoupling of any vibrations that may arise during operation of the components used for horizontal mass balancing can be achieved from the press ram and thus from the cutting or embossing process.
- all of the drive movements required for mass balancing ie both the drive movements required for horizontal and vertical mass balancing, are tapped via components on the crankshaft or eccentric shaft and transferred to the balancing weights, which are designed separately from the components that serve to drive the ram.
- This allows a ma- Achieve maximum decoupling of any vibrations occurring during operation of the components used for mass balancing from the press ram and thus from the cutting or stamping process.
- auxiliary connecting rods acting on a crank pin or eccentric of the crankshaft or eccentric shaft which auxiliary connecting rods can be designed completely independently or together with the active connecting rods or any connecting rods for tapping the drive movements for the vertical Mass balancing (passive connecting rod according to the claims).
- auxiliary connecting rod starting from the crankshaft or eccentric shaft, extend in a direction transverse to the intended direction of movement of the press ram, that is to say in a substantially horizontal direction pointing away from the crankshaft or eccentric shaft.
- auxiliary connecting rods facing away from the crankshaft or eccentric shaft are advantageously each coupled to one end of a pivotably mounted double lever, and preferably articulated thereto.
- the second end of this double lever is coupled directly or via further coupling elements to a counterweight for the horizontal mass balancing, and is advantageously articulated to it.
- auxiliary connecting rod facing away from the crankshaft or eccentric shaft are each coupled to the end of the respective pivotably mounted double lever via a bracket.
- the second end of this double lever is preferably coupled to the respective balancing weight for the horizontal mass balancing via a bracket.
- auxiliary connecting rods acting on a crank pin or eccentric of the crankshaft or eccentric shaft
- these auxiliary connecting rods are designed separately from the claims Active connecting rods, which are used to generate the stroke movement of the press ram.
- these auxiliary connecting rods are each formed together with the active connecting rods, which are used to generate the lifting movement of the press ram.
- This can expediently be done by integrally designing an active connecting rod and an auxiliary connecting rod, e.g. such that the eye of the active connecting rod on the crankshaft or eccentric shaft side also forms the eye of the auxiliary connecting rod on the crankshaft or eccentric shaft side, and that an auxiliary eye is formed on the side of this eye, which forms the eye of the auxiliary connecting rod facing away from the crankshaft or eccentric shaft .
- the punch press according to the invention is designed in such a way that the drive movements required for vertical mass balancing are applied to a crank pin or eccentric of the crankshaft or eccentric shaft.
- gripping passive connecting rods according to the claims are tapped, which can be designed completely independently or together with the active connecting rods or any connecting rods for tapping the drive movements for the horizontal mass balancing (auxiliary connecting rods according to the claims).
- the passive connecting rods starting from the crankshaft or eccentric shaft, extend in a substantially vertical direction pointing away from the press ram.
- the ends of the passive connecting rods facing away from the crankshaft or eccentric shaft are advantageously each articulated to one end of a pivotably mounted double lever, the second end of which is articulated directly or via further coupling elements to a counterweight for vertical mass balancing.
- the respective balancing weight for the vertical mass balancing is carried by the respective end of the respective double lever.
- stamping presses in which the drive movements required for horizontal mass compensation are picked up via auxiliary connecting rods acting on a crank pin or eccentric of the crankshaft or eccentric shaft, and the drive movements required for vertical mass compensation are picked up on a Passive connecting rods according to the claims which attack the crank pin or eccentric of the crankshaft or eccentric shaft are tapped, these auxiliary connecting rods are each formed together with the passive connecting rod.
- auxiliary connecting rods can expediently be done by each integral joint design of a passive connecting rod and an auxiliary connecting rod, e.g.
- crankshaft or eccentric shaft-side eye of the passive connecting rod also forms the crankshaft or eccentric shaft-side eye of the auxiliary connecting rod, and that an auxiliary eye is formed on the side of this eye, which forms the eye of the auxiliary connecting rod facing away from the crankshaft or eccentric shaft.
- active connecting rods are designed separately, it is possible to achieve very good decoupling of any vibrations that may arise during operation of the components used for mass balancing from the press ram and thus from the cutting and / or embossing process, and at the same time a compact construction. wisely realize with few separate components.
- auxiliary connecting rods and the passive connecting rods are formed from separate components. In this way, a maximum decoupling of any vibrations that may arise during operation of the components used for horizontal mass balancing and the components used for vertical mass balancing can be achieved.
- the embodiment of the punch press according to the invention in which the drive movements required for horizontal mass balancing are picked up via auxiliary connecting rods acting on a crank pin or eccentric of the crankshaft or eccentric shaft, and the drive movements required for vertical mass balancing are picked up on a Passive connecting rods attacking the crank pin or eccentric of the crankshaft or eccentric shaft are tapped, at least some of the auxiliary connecting rods, passive connecting rods and active connecting rods are mounted on a common crank pin of the crankshaft or on a common eccentric shaft. This favors a compact design.
- the balancing weights for horizontal mass balancing are advantageously located on both sides of the crank or eccentric wave arranged. This concept has proven particularly suitable.
- each of the counterweights serves to compensate for horizontal as well as for vertical inertia forces. This promotes a compact design with as few components as possible.
- the punch press according to the invention is designed in such a way that the active connecting rods extend from the crankshaft or eccentric shaft in the direction of the press ram, with the ends of the active connecting rods facing away from the crankshaft or eccentric shaft are hinged at one end of a unilateral lever.
- the other end of the respective one-sided lever is mounted in an articulated manner on the housing of the punch press, either directly or via further coupling elements.
- a pressure tab, which is connected to the press ram, is hinged to each of the one-sided levers in an area between their two ends.
- FIG. 1 shows a vertical section through a punch press according to the invention
- Fig. 2 is a section along the line X-X in
- FIG. 4 shows a representation like FIG. 2 of a variant of the punch press according to the invention.
- FIG. 1 shows a vertical section through a punching press according to the invention, in which the press ram 13, which is driven by an eccentric drive arranged in the upper part of the press structure 11, works from above against the clamping plate 14 of the press in normal operation.
- FIG. 2 which shows a horizontal section through the press along the line X-X in FIG. 1, the ram 13 is driven via an eccentric shaft 1a, which has an eccentric sleeve 1b for the purpose of adjusting the eccentricity.
- eccentric bush 1b Arranged on the eccentric bush 1b are two pairs of active connecting rods 9a, 9b, which, starting from the eccentric shaft 1a, 1b, extend in the direction of the press ram 13.
- the ends of the active connecting rods 9a, 9b facing away from the eccentric shaft 1a, 1b are articulated in pairs to one end of an essentially horizontally extending one-sided lever 10a, 10b, the other end of which is articulated on the housing 11 of the punching press.
- a pressure tab 12a, 12b is articulated to the one-sided levers 10a, 10b in the area between the two ends, which is connected to the press ram 13 and moves it up and down during normal operation.
- the press has two counterweights 2a, 2b arranged on both sides of the eccentric shaft 1a, 1b, which are mounted within the housing structure 11 of the press and run in opposite directions during operation to the press ram 13 and to the components of the ram drive 9a, 9b; 10a, 10b; 12a, 12b are moved so that they balance the vertical and horizontal inertia forces generated by them to a large extent within the press.
- the drive of the balance weights 2a, 2b is designed in such a way that the necessary for the horizontal and vertical mass balancing Drive movements are tapped directly on the eccentric shaft 1a, 1b.
- auxiliary connecting rods 5a, 5b and the passive connecting rods 3a, 3b are formed by common components, i.e. there are each a passive connecting rod 3a or 3b and an auxiliary connecting rod 5a or
- auxiliary connecting rods 5a, 5b facing away from the eccentric shaft 1a, 1b, which are formed by the auxiliary eyes 15a, 15b, are each coupled via a tab 8a, 8b to one end of a pivotably mounted double lever 6a, 6b, the second end via a further bracket 7a, 7b is coupled to the lower end of one of the counterweights 2a, 2b.
- the arrangement of the tabs and levers 7a, 8a, 6a or 7b, 8b, 6b is chosen such that a horizontal movement of the auxiliary suction 15a, 15b of the respective auxiliary connecting rod 5a, 5b results in an opposite horizontal movement of the respectively assigned counterweight 2a or 2b causes.
- the punch press is designed in such a way that the drive movements required for horizontal mass balancing are carried out via components 5a, 5b; 6a,
- 6b; 7a, 7b; 8a, 8b are tapped on the eccentric shaft 1a, 1b and transferred to the balance weights 2a, 2b, which are formed separately from the components 9a, 9b; 10a, 10b; 12a, 12b, which are used to drive the ram.
- the ends of the passive connecting rods 3a, 3b facing away from the eccentric shaft 1a, 1b, which are each formed by an eye 17a, 17b, are each articulated to one end of a pivotably mounted double lever 4a, 4b, the second, fork-shaped end of which is at the upper end one of the balance weights 2a, 2b is hinged and carries this.
- the arrangement is selected in such a way that a vertical movement of the eye 17a, 17b of the respective passive connecting rod 3a, 3b causes an opposite vertical movement of the respectively assigned counterweight 2a or 2b.
- the punch press is also designed in such a way that the drive movements required for vertical mass balancing are carried out via components 3a, 3b; 4a, 4b tapped on the eccentric shaft 1a, 1b and transferred to the counterweights 2a, 2b, which are formed separately from the components 9a, 9b; 10a, 10b; 12a, 12b, which serve to drive the ram.
- FIG. 4 shows a section along the line X-X in FIG. 1 in a variant of the punching press according to the invention.
- This variant differs from the variant according to FIGS. 2 and 3 in that the auxiliary connecting rods 5c, 5d and the passive connecting rods 3a, 3b are formed from separate components.
- auxiliary connecting rods 5c, 5d and the active connecting rods 9a, 9b are formed from common components, i.e. an active connecting rod 9a or 9b and an auxiliary connecting rod 5c or 5d are combined to form a common one-piece component.
- This is implemented in such a way that the eye 16 on the eccentric shaft side of the respective passive connecting rod 9a, 9b simultaneously also forms the eye on the eccentric shaft side of the associated auxiliary connecting rod 5c, 5d, and that an auxiliary eye 15c,
- the active connecting rods 9a, 9b and also the auxiliary connecting rods 5c, 5d are each designed here as connecting rod pairs.
- the passive connecting rods 3a, 3b are designed separately from the active connecting rods 9a, 9b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2019/059833 WO2020211931A1 (de) | 2019-04-16 | 2019-04-16 | Stanzpresse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3938196A1 true EP3938196A1 (de) | 2022-01-19 |
EP3938196B1 EP3938196B1 (de) | 2023-12-13 |
Family
ID=66223738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19718349.4A Active EP3938196B1 (de) | 2019-04-16 | 2019-04-16 | Stanzpresse |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220212431A1 (de) |
EP (1) | EP3938196B1 (de) |
JP (1) | JP7377889B2 (de) |
WO (1) | WO2020211931A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH427442A (de) * | 1965-12-02 | 1966-12-31 | Bruderer Ag | Vorrichtung für den Massenausgleich bei durch Kurbeltrieb angetriebenen Maschinen |
CH543375A (de) * | 1971-10-01 | 1973-10-31 | Bruderer Ag | Einrichtung zur Führung des Bärs einer Stanzmaschine |
CH543376A (de) * | 1971-10-01 | 1973-10-31 | Bruderer Ag | Vorrichtung für den Massenausgleich an einer Stanzmaschine |
DE2434266A1 (de) * | 1974-07-17 | 1976-01-29 | Haulick Fa Hermann | Vorrichtung fuer den massenausgleich bei pressen |
CH581281A5 (de) | 1974-09-03 | 1976-10-29 | Bruderer Ag | |
JPH07121474B2 (ja) * | 1987-09-14 | 1995-12-25 | 京利工業株式会社 | プレス機 |
JPH02258200A (ja) * | 1989-03-30 | 1990-10-18 | Sankyo Seisakusho:Kk | 動的釣り合い機構を有するプレス機械 |
CH679471A5 (de) | 1989-05-03 | 1992-02-28 | Bruderer Ag | |
EP0455988B1 (de) * | 1990-05-09 | 1993-10-06 | Bruderer Ag | Vorrichtung zum Massenausgleich bei Stanzmaschinen |
-
2019
- 2019-04-16 JP JP2021561691A patent/JP7377889B2/ja active Active
- 2019-04-16 US US17/603,813 patent/US20220212431A1/en active Pending
- 2019-04-16 WO PCT/EP2019/059833 patent/WO2020211931A1/de unknown
- 2019-04-16 EP EP19718349.4A patent/EP3938196B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
WO2020211931A1 (de) | 2020-10-22 |
US20220212431A1 (en) | 2022-07-07 |
EP3938196B1 (de) | 2023-12-13 |
JP7377889B2 (ja) | 2023-11-10 |
JP2022532481A (ja) | 2022-07-15 |
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