EP2316639B1 - Verfahren und Einrichtung zur Regelung des Antriebes von Ballenpressen - Google Patents

Verfahren und Einrichtung zur Regelung des Antriebes von Ballenpressen Download PDF

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Publication number
EP2316639B1
EP2316639B1 EP10014014.4A EP10014014A EP2316639B1 EP 2316639 B1 EP2316639 B1 EP 2316639B1 EP 10014014 A EP10014014 A EP 10014014A EP 2316639 B1 EP2316639 B1 EP 2316639B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pump
drive
electro
control
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.)
Active
Application number
EP10014014.4A
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German (de)
English (en)
French (fr)
Other versions
EP2316639A2 (de
EP2316639A3 (de
Inventor
Hermann Schwelling
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Individual
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Individual
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Priority to PL10014014T priority Critical patent/PL2316639T3/pl
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Publication of EP2316639A3 publication Critical patent/EP2316639A3/de
Application granted granted Critical
Publication of EP2316639B1 publication Critical patent/EP2316639B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/3007—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3057—Fluid-driven presses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • F15B11/0423—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling pump output or bypass, other than to maintain constant speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/001—Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • F15B2211/20515—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/275—Control of the prime mover, e.g. hydraulic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors

Definitions

  • the invention relates to a method and a device for controlling the drive of a channel baler for compacting loose material and for strapping the compacted material into bales whose actuators are driven by an electro-hydraulic drive.
  • EP 0508 753 A2 discloses a method or a device according to the preamble of claim 1 or the preamble of claim 4.
  • Another electro-hydraulic drive of this type is from the EP 1 236 558 A1 known.
  • a pump regulator is provided under Considering the respective speed of the electric motor adjusts the delivery volume of a variable displacement pump according to the pressure / volumetric flow profile predetermined by the higher-level control.
  • Constant pumps are used in the second hydraulic system. Constant pumps are usually designed as vane or internal gear pumps, inexpensive to buy and relatively quiet in operation. Since both the flow rate of the pump and the engine speed are constant in this drive, wherein the start also takes place via a star-delta circuit, different flow rates are realized by a plurality of pump stages, which can be switched on or off via valves. However, this results in pressure surges when switching on or off of pump stages. It is permanently the max. Flow rate circulated, even for switched-off pump stages in non-pressurized circulation. Here, not only the permanently driven with rated speed electric motor (no-load current about 60% of the rated current) leads to losses, but also the flow in the so-called pressureless circulation, about 10 bar.
  • the object of the invention in the further development of an electro-hydraulic drive device for controlling the drive of a channel baler, with at least a part of the disadvantages mentioned above in the prior art do not occur, at least greatly reduced or completely eliminated and at the same time the device and control engineering effort is reduced.
  • the basic idea of the invention is the combined use of a fixed-displacement pump, a vane or internal gear pump with a frequency-controlled electric motor for the electro-hydraulic drive of the baler.
  • the control unit of the baler for the control of an electric motor of a motor-pump unit of the electro-hydraulic Drive output control signals are first fed to a frequency converter coupled to the electric motor, and also consider the subsequently generated and outputted for the further control of the electric motor control signals generated by a pressure transducer signals on the actual state of a hydraulic train in terms of flow rate, delivery pressure and the like parameters.
  • the hydraulic train of the electro-hydraulic drive leads via branches to the individual actuators of the baler.
  • the new method allows the hydraulic motor, the motor-pump unit pump, to deliver only the volume of oil required by the actuator being controlled.
  • the rotational speed of the pump is regulated as a function of the volume flows required to supply the actuators.
  • an energy saving is achieved.
  • a further advantage is that, depending on requirements, a pump standstill and a soft start are realized without disadvantage.
  • Actuators in the context of the invention are, for example, the movement unit for the press plate or assemblies of the Umschnürungs liked and the like either of the electro-hydraulic drive to be moved components and assemblies of the baler.
  • the device for carrying out the method for controlling the drive of a baler, according to the invention is such that an electric motor of a motor-pump unit of the electro-hydraulic drive of the baler is coupled to a frequency converter.
  • a control line transmitting the control signals generated for the control of the motor-pump unit is connected to the frequency converter.
  • the control signals take into account relevant parameters about the actual state of a hydraulic train of the electro-hydraulic drive, which leads via branches to those designed as a hydraulic piston and the hydraulic motor as actuators.
  • the baler has at least one press box for receiving the material to be pressed, a press channel following in the feed direction into which the material is compacted into a bale as a result of a feed force, a press plate with which the material is pushed by the press box into the press channel arranged substantially above the press box filling chute, which opens into the overhead opening of the press box, an electro-hydraulic drive with actuators for the movement of components and units of the baler and a control unit.
  • a preferred embodiment is seen in that a pressure measuring transducer is connected to the hydraulic train, which is connected via a signal line to the control unit and / or to the frequency converter. According to a further development, it is advantageously provided that in the case of large baling presses two identical motor-pump units are provided, whereby the redundant drive trains in the event of failure of a hydraulic train either work with reduced power at low flow rates with only one motor-pump unit or both drive trains can be completely switched off.
  • a particularly preferred development is also seen in the fact that the power consumption of a baler can be reduced by the frequency-controlled motor-pump unit, since only the actuators are supplied with power that is currently needed.
  • the frequency-controlled drive according to the invention of hydraulic units in a baling press positive properties of control pumps and constant pumps can be meaningfully combined; These include, above all, a low-noise drive, energy savings and an increase in possible operating hours between maintenance intervals.
  • a baler with the use of the drive device according to the invention still further advantages are achieved, for example, because of the lower heat development less cooling power / energy is necessary.
  • a dynamic drive of actuators can take place.
  • no pressure stages take place.
  • the mechanical components in the drive device can be reduced.
  • two equal motor-pump units are used. For example, instead of using a unit with 90 kW and a unit with 50 kW as before, it is now possible to use two identical units, ie two 70 kW units, in order to achieve the maximum output to be designed.
  • the baler can continue to operate at reduced power if one hydraulic line fails.
  • only a motor-pump unit runs at low flow rates and during the downtime (eg machine waiting for new press material) both drive trains can be completely turned off.
  • FIGS. 1 to 7 schematically illustrated, non-limiting embodiment in view in more detail explained in more detail.
  • FIG. 1 is a circuit diagram for controlling the drive of a channel baler 1 with horizontally moving pressure plate, shown in closed hydraulic valves 11,12,13.
  • the FIGS. 2 to 6 each show individual switching positions of the hydraulic valves 11, 12 and 13th
  • the baler 1 is provided for compacting loose material and for strapping the compacted material into bales. It comprises a non-illustrated, known per se compression box for receiving the material to be pressed, a following in the feed direction pressing channel in which the material is compacted as a result of a feed force to a bale, a press plate with which the material from the press box in the pressing channel is pushed, a substantially above the press box arranged feed chute, which opens into the overhead opening of the press box, a Umschnürungsvoriques for the application of spaced-apart straps on the finished pressed bale and an electro-hydraulic drive means for the moving components and units of the baler.
  • the baler 1 is according to FIG. 1 a control unit 2 assigned.
  • the control unit 2 is connected to signal lines 14, 16 with a frequency converter 3 and to hydraulic control valves 11, 12, 13 of a hydraulic line 10. Via a signal line 15, the control unit 2 receives actual values from a pressure transducer 6, which is connected to the hydraulic train 10.
  • the hydraulic train 10 receives its respective required amount of oil from a hydraulic pump 5, which receives the hydraulic oil from a reservoir 17.
  • the hydraulic pump 5 is driven by an electric motor 4, which is preceded by a frequency converter 3.
  • the hydraulic train 10 has a plurality of branches for the corresponding hydraulic control valves 11, 12, 13, which supply the actuators 7, 8, 9 with the required for the respective intended action oil flow.
  • the actuator 7 is designed as a hydraulic piston and moves, for example, the pressure plate of the baler 1.
  • the pressure plate moves to it, the material is advanced, compacted and pressed.
  • the actuator 8 is also designed as a hydraulic piston and actuates a push-through unit for the strapping, wherein the actuator 9 designed as a hydraulic motor generates the rotational movement for twisting the strapping.
  • the hydraulic control valves 11, 12, 13 upstream of the actuators 7, 8, 9 control the supply of the hydraulic oil for the individual actuators 7, 8, 9.
  • the hydraulic oil runs back into a collecting container 18, which is coupled to the storage container 17.
  • baler 1 a bale of waste material is produced by one pressing stroke / pressing cycle.
  • balers where a bale is made by several press cycles the following description refers to the last press cycle.
  • FIG. 2 the hydraulic control valve 11 is opened and the actuator 7 moves the press plate so that the material is advanced, compacted and pressed. If this step "A" is completed, see also the diagram in FIG. 7 , the press plate, which is in its forward position, is mechanically locked. The path traveled by the pressure plate or by the hydraulic piston is in the FIG. 7 denoted by the characteristic line "W".
  • the absorbed power of the electro-hydraulic drive of the baler according to embodiment of the invention ie the combination of the motor-pump unit with a frequency converter for controlling the drive of a baler, in the FIG. 7 the two-dot chain line with the reference numeral P2, is substantially lower than in the previously known drive means whose power consumption in the FIG. 7 marked with the dashed line P1.
  • the hatched area between the two characteristics P1 and P2 in the FIG. 7 indicates the lower energy consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Presses (AREA)
EP10014014.4A 2009-10-27 2010-10-27 Verfahren und Einrichtung zur Regelung des Antriebes von Ballenpressen Active EP2316639B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10014014T PL2316639T3 (pl) 2009-10-27 2010-10-27 Sposób i urządzenie do regulacji napędu pras do belowania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009050891 2009-10-27

Publications (3)

Publication Number Publication Date
EP2316639A2 EP2316639A2 (de) 2011-05-04
EP2316639A3 EP2316639A3 (de) 2012-11-14
EP2316639B1 true EP2316639B1 (de) 2015-12-02

Family

ID=43416527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10014014.4A Active EP2316639B1 (de) 2009-10-27 2010-10-27 Verfahren und Einrichtung zur Regelung des Antriebes von Ballenpressen

Country Status (4)

Country Link
EP (1) EP2316639B1 (pl)
DE (1) DE102010049482B4 (pl)
ES (1) ES2563486T3 (pl)
PL (1) PL2316639T3 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014106181A1 (de) * 2014-05-04 2015-11-05 Hermann Schwelling Ballenpresse
DE102014209685B3 (de) * 2014-05-21 2015-10-22 Sms Meer Gmbh Strangpresse mit Hydraulikantrieb
CN107420363B (zh) * 2017-09-04 2019-06-14 上海意称液压系统有限公司 一种打包机的液压系统及其工作方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236558A1 (de) * 2001-03-03 2002-09-04 Mannesmann Rexroth AG Verfahren zur Regelung der Druckmittelzufuhr zu einem hydraulisch betätigten Aktor
DE102005018928A1 (de) * 2005-04-22 2006-10-26 Metso Lindemann Gmbh Presse zum Bearbeiten von Material beliebiger Art mit schwenkbarem Pressflügel und Pressdeckel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734329A1 (de) 1987-10-10 1989-04-20 Bosch Gmbh Robert Hydraulische steuereinrichtung fuer eine presse
DE4226348A1 (de) * 1992-08-08 1994-02-10 Schleicher & Co Int Ballenpresse
DE10044660B4 (de) 2000-09-02 2008-02-28 Hein, Stefan, Dr.-Ing. Vorrichtung zum Verdichten von Abfall
JP2004263645A (ja) * 2003-03-03 2004-09-24 Opton Co Ltd 液圧装置
US7481158B2 (en) * 2006-12-19 2009-01-27 Lummus Corporation Apparatus and method for baling lint cotton fibers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236558A1 (de) * 2001-03-03 2002-09-04 Mannesmann Rexroth AG Verfahren zur Regelung der Druckmittelzufuhr zu einem hydraulisch betätigten Aktor
DE102005018928A1 (de) * 2005-04-22 2006-10-26 Metso Lindemann Gmbh Presse zum Bearbeiten von Material beliebiger Art mit schwenkbarem Pressflügel und Pressdeckel

Also Published As

Publication number Publication date
DE102010049482A1 (de) 2011-05-12
PL2316639T3 (pl) 2016-06-30
EP2316639A2 (de) 2011-05-04
ES2563486T3 (es) 2016-03-15
EP2316639A3 (de) 2012-11-14
DE102010049482B4 (de) 2018-11-29

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