Patents by Inventor Eberhard DUFFNER

Eberhard DUFFNER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240131767
    Abstract: The invention relates to a hydraulic device for supplying a plurality of work units (3a, 3b), in particular on a plastics injection moulding machine, said device comprising at least one controller (7), at least one valve regulator and/or one valve controller and a central drive (1). A regulating valve (13a, 13b) with a regulating-valve geometry is provided on at least one of the work units (3a, 3b). Pressure sensors (8) detect at least one pressure both upstream and downstream of the regulating valve (13a, 13b), the load pressure (10a, 10b) of at least one of the work units (3a, 3b), and the system pressure (9).
    Type: Application
    Filed: February 21, 2022
    Publication date: April 25, 2024
    Inventors: Eberhard DUFFNER, Walter FEST
  • Publication number: 20230264403
    Abstract: In a mould-closing unit (F) for an injection-moulding machine for processing plastics, at least one mould carrier (10), which can be moved in a longitudinal direction (L-L) of the mould-closing unit (F), is arranged on a machine base (14) and between itself and a further mould carrier (12) forms a mould-clamping space (C), in which parts of at least one cyclically openable and closable injection mould (M) can be received. At least one linear guide (16), arranged in the longitudinal direction (L-L) on the machine base (14), serves for guiding the at least one movable mould carrier (10) when there is movement in the longitudinal direction (L-L).
    Type: Application
    Filed: June 30, 2021
    Publication date: August 24, 2023
    Inventors: Rainer BLETSCHER, Eberhard DUFFNER
  • Publication number: 20230226730
    Abstract: An injection molding unit for an injection molding machine for processing plastic including a carrier block and an exchangeable plasticizing cylinder which is removably receivable in a receiving bore, where a locking device is provided for locking and unlocking the plasticizer unit together with the carrier block by relative movement of bevel surfaces extending crosswise to the injection axis together with operatively connected locking elements which are guided on bearing surfaces, where a bearing nut is provided on the outer surface of the plasticizer cylinder, the surface of which bearing nut pointing in the direction of the carrier block forms at least one of the bearing surfaces, and a plurality of locking elements are provided which either have bevel surfaces pointing toward each other, independently of the carrier block and plasticizer cylinder, which slide on each other during a locking movement and during an unlocking movement, or have, on the side spaced apart from the bearing surface of the bearing
    Type: Application
    Filed: May 5, 2021
    Publication date: July 20, 2023
    Inventors: Rainer BLETSCHER, Eberhard DUFFNER
  • Publication number: 20220242021
    Abstract: By means of the method, an operating system (B) of a machine controller for an injection molding machine (SGM) for processing plastics is provided on a target system (Z) having a processor (P), which target system is independent of the injection molding machine. For this purpose, information about an operating system (B) of a machine controller (MS) of an injection molding machine (SGM) is provided, which operating system can be configured or adapted to the characteristics of the injection molding machine (SGM) by means of configuration data of a first machine configuration (MK1). The operating system (B) is installed with all the configuration data as a digital twin on the target system (Z), using a hardware-independent app to convert the information for the target system. On the target system (Z), a new setting dataset (EDl) is created or an existing setting dataset (EDl) for producing injection-molded parts is changed, the setting dataset being able to run on the injection molding machine (SGM, SGM1).
    Type: Application
    Filed: June 12, 2020
    Publication date: August 4, 2022
    Inventor: Eberhard DUFFNER
  • Patent number: 11267179
    Abstract: The invention relates to a method which is used to operate an injection molding machine for processing plastics, which has a mold closing unit (F) for opening and closing an injection mold (M) having at least one mold cavity (12) in order to produce an injection molded part (13), an injection molding unit (S) for plasticizing and injecting new plasticizable material into the mold cavity (12), and a control system (11) for operating the injection molding machine (10). Stored in the control system is expert knowledge (E) about the operation of the injection molding machine and the peripheral devices (P) of the latter which may possibly be present and about the production of injection molded parts (13) using injection molding technology, in order to produce an injection molded part (13) using interactive contact as needed by an operator by using injection molding parameters.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: March 8, 2022
    Assignee: ARBURG GMBH + CO. KG
    Inventors: Herbert Kraibühler, Eberhard Duffner
  • Patent number: 11247375
    Abstract: A mould-closing unit for an injection moulding machine for processing plastics has a mould support which is movable relative to a stationary mould support (10). A mould-moving device is provided to move the movable mould support into and out of closure of an injection mould. At least one force transmission element is connected to the movable mould support and at its end remote from the movable mould support has a section (14a) which is assigned to the stationary mould support (10) and can be actuated for operative engagement. The stationary mould support (10) is assigned a locking device (15), which can be moved into interlocking operative connection with the actuatable section (14a) to apply a closing force during closure of the injection mould. According to the method, these elements are used to create a method for locking a force transmission element to a mould support of the injection moulding machine.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 15, 2022
    Assignee: ARBURG GMBH + CO KG
    Inventors: Eberhard Duffner, Rainer Bletscher
  • Patent number: 11214003
    Abstract: A device and a method for producing a three-dimensional object from at least one fluid-phase, fusable material has at least one discharge unit (12) with at least one outlet opening for the generative discharge of the fusable material for building up the object (50). By means of at least one fibre feeding device (60), at least one fibre element (61) is supplied for embedding the fibre element in the fusable material discharged from the discharge unit (12), wherein the fibre feeding device (60) is movable for the alignment of the fibre element in relation to an advancement in the building of the object. The fact that the fibre feeding device (60) is mounted on the discharge unit (12) and is movable in relation to the discharge unit (12) means that a selective introduction of fibre elements is made available for the production of a three-dimensional object with improved material properties by the generative process.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 4, 2022
    Assignee: ARBURG GMBH + CO KG
    Inventors: Eberhard Duffner, Florian Baumann
  • Patent number: 11150799
    Abstract: The invention relates to a human machine interface (1) for simultaneously and interactively controlling a control function of a machine (3). The human machine interface (1) comprises a control input unit (5) by means of which a control parameter of a control function of the machine (3) can be simultaneously manually operated in accordance with a parameter input (27), a parameter input unit (7) which can be controlled independently from the control input device (5) and which enables a control parameter of the control function to be manually controlled, and a parameter display unit (9) arranged together with the parameter input unit (7) and which enables feedback of the control parameter to be manually controlled.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 19, 2021
    Assignee: ARBURG GMBH + CO KG
    Inventors: Eberhard Duffner, Werner Faulhaber
  • Publication number: 20210213662
    Abstract: The invention relates to a method that serves to control a machine (10) for processing plastics and other plasticisable materials such as powdered and/or ceramic substances. The machine has a mould opening and closing unit (12) for opening and closing an injection mould (14) having at least one mould cavity (16) for producing an injection moulded part (18) corresponding to the shape of the mould cavity (16), an injection moulding unit (20) having means for plasticising and for injection of the plasticisable material in the mould cavity (16) and has a machine control (22) which is connected to an expert knowledge source (34) and if required can be operated by the operator by means of an interactive contact. Information concerning the geometry of the injection moulded part (18) and/or the mould cavity (16) and the sprue geometry (24) are provided to the machine control (22), in order to calculate at least one injection process taking the geometric information into consideration.
    Type: Application
    Filed: September 19, 2019
    Publication date: July 15, 2021
    Inventors: Eberhard DUFFNER, Herbert KRAIBÜHLER
  • Patent number: 10974428
    Abstract: A mold closing unit for an injection molding machine for processing plastics and other compounds that can be plasticized, including at least one machine bed, at least one stationary platen, and at least one platen that can be moved relative to the stationary platen by a drive mechanism, where the movable platen can be moved on a slide having guide shoes along at least one guide attached to the machine bed, and the drive mechanism has at least one gear rack drive driven by at least one drive motor, whereby, because at least two gear racks are fixedly connected to the machine bed and because the drive motor is fixedly connected to the slide and, in the event of a movement of the movable platen, the occurrence of tilting torques are reduced and safe operation of the mold closing unit is ensured.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 13, 2021
    Assignee: ARBURG GMBH + CO KG
    Inventors: Eberhard Duffner, Rainer Bletscher
  • Patent number: 10946571
    Abstract: The invention relates to a mould clamp for an injection moulding machine, comprising a device for automatically adapting to the mould height of injection moulds (13) of different heights (a). A clamping device supported on an adjustable supporting element (21) is provided for moving a movable mould carrier (11) in the clamping direction (s-s) towards and away from the stationary mould carrier (10). A distance (x) between the stationary mould carrier (10) and the adjustable supporting element (21) can be adjusted by moving the supporting element, by means of a mould height adjustment system (14). A locking device (16) detachably locks the supporting element (21) in the respective position thereof, by pretensioning locking elements. A dynamically actuatable mould height adjustment system is produced by the locking elements being selectively relieved or pre-tensioned by active actuating elements, the pretension being cancelled in order to release the mould height adjustment system (14).
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: March 16, 2021
    Assignee: ARBURG GMBH + CO KG
    Inventors: Eberhard Duffner, Rainer Bletscher
  • Publication number: 20210069955
    Abstract: A mould-closing unit for an injection moulding machine for processing plastics has a mould support which is movable relative to a stationary mould support (10). A mould-moving device is provided to move the movable mould support into and out of closure of an injection mould. At least one force transmission element is connected to the movable mould support and at its end remote from the movable mould support has a section (14a) which is assigned to the stationary mould support (10) and can be actuated for operative engagement. The stationary mould support (10) is assigned a locking device (15), which can be moved into interlocking operative connection with the actuatable section (14a) to apply a closing force during closure of the injection mould. According to the method, these elements are used to create a method for locking a force transmission element to a mould support of the injection moulding machine.
    Type: Application
    Filed: December 20, 2018
    Publication date: March 11, 2021
    Inventors: Eberhard DUFFNER, Rainer BLETSCHER
  • Patent number: 10717238
    Abstract: In a method for the further processing of a product (30) that is preferably prefabricated in large numbers, the product has a surface (31) for an additive multi-dimensional application of material. Information for the additive multi-dimensional application of material is input into a device in which the multi-dimensional application of material is digitised from this information and is deconstructed into elements that are suitable for the additive application of the application of material to the surface (31). The prefabricated product (30) is introduced into a device (I) for additive application of the material application such that the elements for the additive multi-dimensional application of material on the surface (31) are assembled in accordance with the information using an additive manufacturing method.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: July 21, 2020
    Assignee: ARBURG GMBH + CO KG
    Inventors: Oliver Kessling, Eberhard Duffner
  • Publication number: 20190263037
    Abstract: The invention relates to a mould clamp for an injection moulding machine, comprising a device for automatically adapting to the mould height of injection moulds (13) of different heights (a). A clamping device supported on an adjustable supporting element (21) is provided for moving a movable mould carrier (11) in the clamping direction (s-s) towards and away from the stationary mould carrier (10). A distance (x) between the stationary mould carrier (10) and the adjustable supporting element (21) can be adjusted by moving the supporting element, by means of a mould height adjustment system (14). A locking device (16) detachably locks the supporting element (21) in the respective position thereof, by pretensioning locking elements. A dynamically actuatable mould height adjustment system is produced by the locking elements being selectively relieved or pre-tensioned by active actuating elements, the pretension being cancelled in order to release the mould height adjustment system (14).
    Type: Application
    Filed: October 16, 2017
    Publication date: August 29, 2019
    Inventors: Eberhard DUFFNER, Rainer BLETSCHER
  • Patent number: 10040249
    Abstract: The invention relates to a method for producing a three-dimensional object (50) by means of generative construction in a direct constructional sequence from at least one solidifiable material. At least one material component is discharged in a programmable way via a control device in the direct constructional sequence and, as a result of the discharge, produces structurally different regions of the object (50) that are joined together, wherein geometric relationships obtained during the discharge already correspond to the object (50).
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 7, 2018
    Assignee: ARBURG GMBH + CO KG
    Inventors: Herbert Kraibühler, Eberhard Duffner, Oliver Kessling
  • Patent number: 9889604
    Abstract: A device for producing a three-dimensional object from hardenable material has a construction space (20) for constructing the object (50), a temperature control unit for controlling the temperature of the construction space (20), and a preparation unit (11) for preparing the hardenable material in such a way that the material is in the fluid phase. A pressure generation unit (10) applies pressure to the fluid phase in the preparation unit. A discharge unit (12) is provided for discharging the hardenable material through an outlet (12b) in the form of drops in the direction of the construction space (20). In order to optimize the energy required to control the temperature that promotes bonding of the material on the object (50), the temperature-controlled construction space (20) is surrounded by a construction space frame (18) in which at least the outlet of the discharge unit (12), the preparation unit (11), and the object support (13) for producing the object are accommodated.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 13, 2018
    Assignee: ARBURG GMBH + CO. KG
    Inventors: Herbert Kraibuhler, Eberhard Duffner
  • Patent number: 9845812
    Abstract: In a method for operating a hydraulic device for providing a supply to hydraulic consumers (V) on a plastics injection moulding machine, provision is made of a pump (10) with a volumetric delivery characteristic that results in cyclic pulsations and of a servomotor (11) with multiple poles that result in cyclic pulsations. The pressure at the hydraulic consumer (V) is detected and is input as an actual value into a pressure regulator (13) that readjusts the servomotor (11), on the basis of a predefined pressure profile, to a pressure setpoint value at the hydraulic consumer (V). The cyclic pressure pulsation is minimized in that, by means of a rotational angle sensor (20), the rotational angle (?) of the pump (10) and/or of the servomotor (11) is detected and correlated with the cyclic pulsations, and in that, from this, a corrective value or a corrective function is determined and is transmitted to the pressure regulator (13) with control subordinate to the regulation of the pressure setpoint value.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 19, 2017
    Assignee: ARBURG GMBH + CO KG
    Inventors: Herbert Kraibuhler, Eberhard Duffner
  • Publication number: 20170297273
    Abstract: In a method for the further processing of a product (30) that is preferably prefabricated in large numbers, the product has a surface (31) for an additive multi-dimensional application of material. Information for the additive multi-dimensional application of material is input into a device in which the multi-dimensional application of material is digitised from this information and is deconstructed into elements that are suitable for the additive application of the application of material to the surface (31). The prefabricated product (30) is introduced into a device (I) for additive application of the material application such that the elements for the additive multi-dimensional application of material on the surface (31) are assembled in accordance with the information using an additive manufacturing method.
    Type: Application
    Filed: October 8, 2015
    Publication date: October 19, 2017
    Applicant: ARBURG GMBH + CO KG
    Inventors: Oliver KESSLING, Eberhard DUFFNER
  • Patent number: 9724875
    Abstract: The invention relates to a device for producing a three-dimensional object (50) from solidifable material in a liquid phase. Said device comprises at least one preparation unit for preparing the solidifiable material in the liquid phase, at least one pressure generating unit (60) for generating a pressure in the liquid phase and at least one discharge unit (12) for discharging the solidifiable material through an outlet opening. Said pressure generation unit comprises a rotation motor and an axial movement motor (10) for moving conveyor means, said rotation motor being arranged behind the axial movement motor (10) when viewed from the discharge unit (12). The invention also relates to a device for providing high forces at low speeds.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: August 8, 2017
    Assignee: ARBURG GMBH + CO. KG
    Inventors: Herbert Kraibühler, Eberhard Duffner
  • Patent number: 9539765
    Abstract: In a method for discharging a volume flow consisting of successive drops to produce a three-dimensional object of solidifiable material present in a fluid phase, the fluid phase of the material is introduced into a material storage means. A pressure (p) is applied to the fluid phase, in order to discharge the material in drops out of a cyclable outlet opening to build up the three-dimensional object in a construction chamber. A method is provided for achieving a constant, discontinuous volume flow by the pressure (p) being regulated via a closed-loop control in the event of a change in the viscosity of the fluid phase of the material, while maintaining the other process parameters, to achieve a predetermined drop size. The pressure is applied by a conveying element, the average displacement velocity of the conveying element per discharged drop being converted as a measured variable into the control variable for the closed-loop control.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 10, 2017
    Assignee: ARBURG GMBH + CO. KG
    Inventors: Herbert Kraibühler, Eberhard Duffner, Oliver Kessling