EP3580054A1 - Presse mit doppeltwirkendem hydraulikzylinder - Google Patents
Presse mit doppeltwirkendem hydraulikzylinderInfo
- Publication number
- EP3580054A1 EP3580054A1 EP18702671.1A EP18702671A EP3580054A1 EP 3580054 A1 EP3580054 A1 EP 3580054A1 EP 18702671 A EP18702671 A EP 18702671A EP 3580054 A1 EP3580054 A1 EP 3580054A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- double
- press
- connecting rod
- plunger
- hydraulic cylinder
- 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
- B30B1/265—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 using a fluid connecting unit between drive shaft and press ram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
- B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
Definitions
- the subject of this invention is a press or a punching machine with a drive oscillating about an eccentric shaft and at least one connecting rod a plunger
- the subject of this invention also forms a method for operating a press or a stamping machine, in which a plunger is driven in an oscillating manner by means of an eccentric shaft and at least one connecting rod by a drive.
- a plunger is driven in an oscillating manner by means of an eccentric shaft and at least one connecting rod by a drive.
- Such presses have been known for a long time.
- the plunger moves back and forth between a lower and a top dead center.
- the pressing or punching force is fed directly into the ram via one or more connecting rods (2 - or 4 - point presses).
- There are also possibly provided adjustments to adjust the stroke This usually happens via a
- Eccentric bush The position of the plunger can also be adjusted via a ball screw at the lower end of the connecting rod (plunger adjustment).
- the invention has for its object to provide a press or a stamping machine, in which the punching or forming process is improved. This task is solved by a press or a
- Cylinder is arranged, with the double-acting Hydraulic cylinder can be operated vibrating, so that thereby the punching or forming process by a
- the double-acting hydraulic cylinder is housed in the connecting rod shank. It is also conceivable that the hydraulic cylinder is arranged below an overload fuse, directly above the plunger.
- Hydraulic cylinder is provided, can thus also realize a fast lift stroke.
- Hydraulic cylinders are also working on the open
- the ram is driven by the eccentric drive to the top dead center and then is on the
- Double-acting Hydraulic ikzyl activated in the Lifthub has an opening travel of 140 mm. With a press stroke of 160 mm, a maximum opening travel of 300 mm can be realized. As a result, the press tool is easily accessible for optical inspection or work on it (e.g., grinding work).
- presses are also equipped with an overload fuse, which is usually arranged in the ram.
- an overload fuse which is usually arranged in the ram.
- hydraulic cylinder can also function as a
- the invention also includes a method for operating a press or a stamping machine, in which a plunger is driven oscillating via an eccentric shaft and at least one connecting rod of a drive. According to the invention, the plunger is also driven in addition via a double-acting hydraulic cylinders, which is arranged in the connecting rod, vibrating.
- the double-acting cylinder can do this in addition
- Hydraulic cylinder is operated vibrating.
- Double acting cylinders in the respective connecting rods Double acting cylinders in the respective connecting rods
- Fig. 1 is a schematic view of the press according to the invention.
- Fig. 2 is a detail view of the connecting rod;
- Fig. 3 is a functional diagram of the press;
- the same reference numerals in the accompanying drawings in each case designate the same components.
- Figure 1 shows an example of a press 1 with a
- a drive 6 drives via the drive belt 7 and the
- Roller bearing 14 is rotatably mounted.
- the upper end 30 of the connecting rod 9 is made of two screwed together
- FIG. 2 shows a connecting rod 9 according to the invention in detail.
- the connecting rod 31 is here
- a piston 22 is arranged within the cylinder 25, a piston 22 is arranged. Via the lines 24 or 26, the pressure chamber 23 or the annular space 28 can be acted upon with a hydraulic fluid and so the piston 22 can be raised or lowered. Due to the rapid alternate pressurization of the pressure chamber 23 and the annular space 28, the vibrating movement of the piston 22 is realized.
- Ball socket 19 stored. With the help of the ball screw 18 and the spindle nut 21, the position of the plunger 10 can be adjusted in a known manner.
- FIG. 3 now shows a functional diagram.
- the plunger 10 can on the one hand in a known manner on the rotating
- Eccentric shaft 5 are driven oscillating. As a result, a ram stroke A can be realized.
- the inventive double-acting hydraulic cylinder 27 can additionally realize the stroke B.
- Vibrating actuation of the hydraulic cylinder 27 takes place via the magnetic switch 29.
- the magnetic switch 29 alternately pressurizes the upper pressure chamber 23 or the lower annular space 28 with the hydraulic fluid so that the piston 22 vibrates, for example at a frequency of 20 Hz.
- the upper pressure chamber 23 is being filled via the line 24 with hydraulic fluid coming from the supply line P.
- the lower annular space 28 is emptied via the line 26 into a tank T.
- the piston 22 moves so here the plunger 10 down.
- the plunger 10 can thus be raised and lowered very rapidly and thus operated vibrantly.
- the working stroke can be through the
- Hydraulic ikzyl inder 27 are carried out together.
- the eccentric drive moves the vibrating
- Hydraulic ikzyl inder 27 down so that the plunger 10 moves vibrating down.
- the working stroke can also only by the vibrating
- the ram adjustment can be realized with the help of the ball screw 18, a further stroke C, but this lasts j edoch quite a long time.
- inventive connecting rod 9 is shown.
- all connecting rods 9 would have a double-acting hydraulic cylinder 27, which are vibrationally operable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL18702671T PL3580054T3 (pl) | 2017-02-09 | 2018-01-30 | Prasa z działającym dwukierunkowo cylindrem hydraulicznym |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT501042017 | 2017-02-09 | ||
| PCT/EP2018/052295 WO2018145957A1 (de) | 2017-02-09 | 2018-01-30 | Presse mit doppeltwirkendem hydraulikzylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3580054A1 true EP3580054A1 (de) | 2019-12-18 |
| EP3580054B1 EP3580054B1 (de) | 2021-04-21 |
Family
ID=61148226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18702671.1A Active EP3580054B1 (de) | 2017-02-09 | 2018-01-30 | Presse mit doppeltwirkendem hydraulikzylinder |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3580054B1 (de) |
| ES (1) | ES2890223T3 (de) |
| PL (1) | PL3580054T3 (de) |
| WO (1) | WO2018145957A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526674B1 (de) * | 2023-11-24 | 2024-06-15 | Andritz Kaiser Gmbh | Presse mit kompensation der stoesselverkippung |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3005404A (en) * | 1959-09-01 | 1961-10-24 | Tucker & Sons | Hydraulic connecting unit for punch-press rams |
| US3552182A (en) * | 1968-11-20 | 1971-01-05 | Wisconsin Machine Corp | Press brake with hydraulic ram adjustment |
| DE3507327A1 (de) * | 1985-03-01 | 1986-09-04 | Jörg 8607 Hollfeld Lange | Exzenter-hydraulikpresse |
| JPH03238200A (ja) * | 1990-02-16 | 1991-10-23 | Ishikawajima Harima Heavy Ind Co Ltd | 加圧速度可変プレス |
| DE10229276B4 (de) * | 2002-06-28 | 2005-09-08 | Schuler Pressen Gmbh & Co. Kg | Vorrichtung zur Überlastsicherung in einer Presse |
| US10160175B2 (en) * | 2013-01-29 | 2018-12-25 | Aida Engineering, Ltd. | Press machine and method for controlling slide of press machine |
-
2018
- 2018-01-30 PL PL18702671T patent/PL3580054T3/pl unknown
- 2018-01-30 EP EP18702671.1A patent/EP3580054B1/de active Active
- 2018-01-30 WO PCT/EP2018/052295 patent/WO2018145957A1/de not_active Ceased
- 2018-01-30 ES ES18702671T patent/ES2890223T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018145957A1 (de) | 2018-08-16 |
| PL3580054T3 (pl) | 2021-10-25 |
| EP3580054B1 (de) | 2021-04-21 |
| ES2890223T3 (es) | 2022-01-18 |
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