Abstract: The staves for producing wooden barrels are assembled of individual segments which are fixedly connected to each other at end faces. The individual segments are shorter wood pieces that are assembled such that the stave has the required length. The wooden barrel is produced of such staves which are placed against each other seal-tightly with their narrow sides. The individual segments are machined at their end faces such that individual segments resting against each other after assembly are positioned at an angle relative to each other and form a raw stave that is curved across the length.

Abstract: A machine for conical machining workpieces of wood and plastics has a support supporting the workpieces during feeding in a transport direction through the machine. Rotatably driven tools are provided to machine longitudinal sides of the workpieces extending in the transport direction. At least one of the rotatably driven tools is adjustable transverse to the transport direction. A tongue and groove guide guides the workpieces through the machine in transport direction. In a method for conical machining workpieces, the workpieces prior to or during feeding are measured in regard to the conicity to be machined. A form-fit element is produced on the workpieces and interacts with a counter form-fit element during feeding of the workpieces so as to guide the workpieces in transport direction. At least one of the rotatably driven tools is adjusted transverse to the transport direction during feeding of the workpieces based on the measured conicity.

Abstract: A counter bearing for machining spindles of machine tools has at least one expansion bushing with an elastically deformable wall that delimits at least one pressure chamber. The pressure chamber accommodates a pressure medium. A supply line for the pressure medium opens into the pressure chamber. A pressure conduit opens into the pressure chamber. A mechanically actuatable pressure element is disposed in the pressure conduit and actuated by an actuating tool. A piston is slidably arranged in the pressure conduit and actuated by the pressure element, wherein the piston loads the pressure medium.

Abstract: In monitoring the machine space of a processing machine during the throughput of workpieces in order to detect workpieces that got stuck, the rear end of a workpiece with reference to the transport direction generates a start signal in the inlet region of the machine space, as well as an end signal in the outlet region thereof by sensors that are connected to a control unit. Beginning with the start signal, the control unit detects a feature that characterizes a theoretical feed travel and generates a release signal if the value of the detected characteristic feature has reached at the time, at which the end signal is generated, a predefined limiting value and not yet exceeded a predefined upper limiting value or if the end signal is generated at a time, at which the value of the detected characteristic feature has reached the predefined limiting value and not yet exceeded the upper limiting value.

Abstract: A woodworking spindle has a spindle shaft disposed in a spindle housing. One or more rotary bearings support the spindle shaft in the spindle housing. One or more temperature sensors are provided that detect the temperature of the one or more rotary bearings. An evaluation unit is provided and temperature signals generated by the temperature sensors are supplied to the evaluation unit that generates output signals based on evaluation of the temperature signals generated by the temperature sensors. In a method for monitoring the temperature of rotary bearings of a spindle of a woodworking machine, the temperature of the rotary bearings is permanently detected and rotary bearing temperature signals are generated. The rotary bearing temperature signals are sent to an evaluation unit and compared with a first temperature limit value. A first output signal is generated when the temperature signals reach a first temperature limit value.

Abstract: A clamping device for an adjustable stop of a processing machine for guiding workpieces through the processing machine is provided with at least one clamping part that clamps the stop against at least one counter stop. The clamping part is provided on a transmission element, wherein the transmission element is acted upon with a force (F1) that is converted into a clamping force (F2) acting upon the clamping part. A release unit is provided for releasing the clamping action. The transmission element is a two-armed lever, one arm of which is acted upon with the force (F1) in the form of a compressive force and the other arm of which generates the clamping force (F2).

Abstract: A pressing device for a machine tool for processing or machining workpieces made of wood or plastics is provided with at least one support with a counter wedge surface. At least one pressing element is fastened to the at least one support. At least one wedge clamping device is provided that has at least one wedge pressure member with a first wedge surface that is resting on the counter wedge surface of the at least one support. The at least one wedge clamping device also has at least one adjusting element acting on the at least one wedge pressure member. The at least one wedge clamping device clamps the at least one pressing element on the at least one support. A machine tool with such a pressing device is provided.

Abstract: The clamping device is provided for tools and has a coupling piece that is provided with at least one actuating unit. The coupling piece acts to actuate a nut seated on a spindle journal that is receiving the tool. A torque coupling is provided for the nut. The coupling piece is fixedly connected with an output shaft that is in drive connection with a drive shaft by a transmission gear. As a result of the transmission gear, it is possible to rotate the drive shaft with minimal moment in order to apply the great clamping force required for axial clamping of the tool.

Abstract: The adjusting device for a pressure roller of a processing machine has a pivotable support arm carrying a pressure roller adjustable with the support arm from a pressure position into a resting position. The support arm is seated on a support rod that engages a clamping aperture of a pressure roller bracket. The support rod has a first section with noncircular cross section that forms a form-fit section cooperating with the clamping aperture of the pressure roller bracket by form-fit. The support rod has a second section arranged axially offset to the first section and forming a rotary section. It rests against the inner side of the clamping aperture and allows rotation of the support rod about its axis in the clamping aperture. The pressure roller can be pivoted easily into a resting position and/or transverse to the workpiece in the width direction with a constructively simple design.

Abstract: In a molder, at least one rotatably driven tool (7, 8, 10, 11) is used to produce the structure (27) or contour on the workpiece (1) by workpiece removal. The workpiece positions along the workpiece (1) for producing the structure or contour are set depending on the data of the workpiece (1) and of the tool (7, 8, 10, 11). The data are transmitted to the machine controller which processes the CNC program based on the data during the passage of the workpiece (1) through the molder and moves the tool (7, 8, 10, 11) into the required positions via CNC drives depending on the workpiece position. The workpiece position is sensed during the passage of the workpiece (1) through the molder. In order to sense the workpiece position in the molder, at least one measuring element (18) is provided upstream and downstream of the tool (1), said measuring element (18) being connected to the machine controller and supplying signals that describe the advancing travel of the workpiece (1) to the machine controller.

Abstract: The transporting roller (1) has teeth (6) arranged in a distributed manner over the circumference. To allow a high advancing force to be achieved with the transporting roller (1) at the same time as an only low pressing force over a long operating time and service life, at least some of the teeth (6) comprise a main tooth (7) and at least one secondary tooth (9), which is arranged at a distance from the main tooth and has a smaller tooth tip radius (r2) than the main tooth (7). With the secondary teeth (9), there is an additional transfer of force exerted on the workpiece (2). The secondary teeth (9) limit the depth of penetration of the main teeth (7). When there is a high pressing pressure, the secondary teeth (9) penetrate partially into the work-piece (2). The main and secondary teeth (7, 9) penetrate only slightly into the workpiece (2), and so only a small amount of material has to be removed to eliminate any markings.

Abstract: The transporting roller (1) has teeth (6) arranged in a distributed manner over the circumference. To allow a high advancing force to be achieved with the transporting roller (1) at the same time as an only low pressing force over a long operating time and service life, at least some of the teeth (6) comprise a main tooth (7) and at least one secondary tooth (9), which is arranged at a distance from the main tooth and has a smaller tooth tip radius (r2) than the main tooth (7). With the secondary teeth (9), there is an additional transfer of force exerted on the workpiece (2). The secondary teeth (9) limit the depth of penetration of the main teeth (7). When there is a high pressing pressure, the secondary teeth (9) penetrate partially into the work-piece (2). The main and secondary teeth (7, 9) penetrate only slightly into the workpiece (2), and so only a small amount of material has to be removed to eliminate any markings.

Abstract: A machine for machining workpieces of wood and plastics has a rotatably driven spindle and at least one tool that is seated on the rotatably driven spindle and has a circular arrangement of knives. The tool has a tool body and the circular arrangement of knives is supported on the tool body. An inner table acting as a workpiece support is provided, wherein the circular arrangement of knives surrounds the inner table and wherein the inner table is a component of the tool. A machine table is provided on which the workpieces are fed to the at least one tool.

Abstract: In a method for adjusting at least one pressing element of a molding machine for machining workpieces of wood or plastic material relative to a workpiece, transported through the machine and to be machined by the machine, the pressing element is adjusted outside of the molding machine in an adjusting device with the aid of a template of the workpiece and the adjusted pressing element is then inserted into the molding machine.

Abstract: A release device for actuating a clamping device for tools has at least one release element and a drive drivingly connected to the at least one release element for moving the at least one release element from a rest position into a release position in which a draw bar of the clamping device is moved against a clamping force into a disengaged position. The drive is an electric motor. The axis of the electric motor can be aligned with the axis of the release device but an angled arrangement of the electric motor and of the release device relative to one another is also possible.

Abstract: A machine for machining workpieces of wood and plastic has a transport path for transporting workpieces through the machine. One or more driven spindles having a tool for machining the workpieces transported through the machine are provided. An adjustable element that is adjustable relative to the tool is provided. At least one data storage is provided for storing data at least of the tool wherein the data are used to determine a position of the adjustable element relative to the tool and are retrievable. In the method for adjusting the machine, characteristic data of the tool are measured and stored in the data storage. The characteristic data are supplied to a control unit. In the control unit positioning data for the adjustable element are calculated based on the characteristic data and then made available for processing the workpieces.

Abstract: A shaping machine has at least one rotatably driven spindle having a conical receiving opening. A tool is provided. A conical member is mounted in the receiving opening, wherein the tool is secured by the conical member to the spindle. A clamping device clamps the conical member in the receiving opening, wherein the tool is supported on an end face of the spindle.