Patent classifications
B21D43/28
PUNCHING METHOD, PUNCHING DEVICE, AND METHOD FOR MANUFACTURING LAMINATED IRON CORE (AS AMENDED)
A punching method includes: punching out a plurality of electrical steel sheets in a stacked state by a mold, wherein sheet thicknesses of the electrical steel sheets are set to be 0.35 mm or less, a Vickers hardness (test force 1 kg) of the sheets is set to be 150 to 400, and an average crystal grain size of the sheets is set to be 50 to 250 μm, a clearance of the mold is set to be 7% or more of a minimum sheet thickness of the sheet thicknesses of the electrical steel sheets and equal to or lower than 7% of a total sheet thickness of the electrical steel sheets, and a pressure that a sheet presser of the mold applies to the electrical steel sheets is set to be 0.10 MPa or more.
Press working apparatus, and setting method and maintenance method thereof
A press working apparatus includes: a first positioner that is provided to at least one press of a first press or a second press and that performs positioning of at least one die of the at least one press; and a second positioner that performs positioning of the at least one die and that positions the at least one die in a position deviated in a feeding direction with respect to the first positioner.
WORKPIECE TRANSPORT DEVICE
A workpiece transport device capable of improving a workpiece transport speed to increase productivity is provided. The workpiece transport device transports a workpiece pressed by a press machine. The workpiece transport device includes a base portion, a crossbar that holds the workpiece, a parallel mechanism, and a motor. The parallel mechanism is supported on the base portion. The parallel mechanism is configured to change a position of the crossbar relative to the base portion by operating in a plane defined by a transport direction in which the workpiece is transported and an up-down direction. The motor generates a driving force for driving the parallel mechanism. The motor is mounted on the base portion.
Device and method for removing a workpiece part from the rest of the workpiece
Methods and devices for removing a workpiece part from a remaining workpiece, comprise a holding apparatus that is moveable in a removal direction and switchable between a fixing state for fixing the workpiece part to the holding apparatus and a release state for releasing the workpiece part from the holding apparatus. The holding apparatus has at least one electrically conductive first contact element for contacting the workpiece part at one or more first contact points and at least one electrically conductive second contact element for contacting the workpiece part at one or more second contact points. The device also has a sensor apparatus that uses the contact elements to check, in a first check state, the complete separation of the workpiece part from the remaining workpiece and to check, in a second check state, fixing of the workpiece part to the holding apparatus being in the fixing state.
Fine blanking press and method for handling a process material to be processed in a fine blanking press
A fine blanking press comprises a blanking ram and a counter unit positioned opposite the blanking ram. A press drive is configured to drive at least the blanking ram along a driving direction during a fine blanking process step. A feeding device is configured to feed a process material to a process zone defined between the blanking ram and the counter unit and at least one handling device is configured to handle the process material outside of the process zone. At least one levelling drive is configured to drive the at least one handling device in a same direction as the blanking ram during a fine blanking process step.
Fine blanking press and method for handling a process material to be processed in a fine blanking press
A fine blanking press comprises a blanking ram and a counter unit positioned opposite the blanking ram. A press drive is configured to drive at least the blanking ram along a driving direction during a fine blanking process step. A feeding device is configured to feed a process material to a process zone defined between the blanking ram and the counter unit and at least one handling device is configured to handle the process material outside of the process zone. At least one levelling drive is configured to drive the at least one handling device in a same direction as the blanking ram during a fine blanking process step.
Apparatus and method for working bars
An apparatus for working bars includes a plurality of containing devices disposed adjacent and parallel to each other with an oblong development in respective longitudinal directions to contain a respective bundle of bars. At least one work station is located downstream of the containing devices. The work station includes at least one removal device to remove at least one bar from one of the containing devices, at least one drawing unit configured to move the bars in a direction of feed parallel to the longitudinal directions, and at least one bending device configured to bend the bars At least one drive member is associated with the work station, configured to move work station in a transverse direction with respect to the longitudinal directions in order to take the removal device into correspondence with one or the other of the containing devices, which are substantially fixed in position.
Sheet handling apparatus with automatic removal of separating foil and method thereof
A method and relative sheet handling apparatus apt to pick up sheets from a pack of sheets to be delivered to a cut-ting centre and for removing a separating foil between the sheets is described, including: a lifting and removing unit for a top sheet equipped with upper gripping heads; an air flow generating unit generating an air flow above the pack of sheets; and a control unit of the lifting unit, suitable for arranging the top sheet at a stasis height of up to 70 mm above the pack of sheet to define a suction chamber for the air flow generator.
Sheet handling apparatus with automatic removal of separating foil and method thereof
A method and relative sheet handling apparatus apt to pick up sheets from a pack of sheets to be delivered to a cut-ting centre and for removing a separating foil between the sheets is described, including: a lifting and removing unit for a top sheet equipped with upper gripping heads; an air flow generating unit generating an air flow above the pack of sheets; and a control unit of the lifting unit, suitable for arranging the top sheet at a stasis height of up to 70 mm above the pack of sheet to define a suction chamber for the air flow generator.
METHOD FOR OPTIMISING THE CUTTING AND HANDLING UNIT FOR ELONGATED PRODUCTS
The method for optimising the cutting of elongated products, in particular bars or profiles for reinforced concrete, comprises the steps of arranging in succession along a longitudinal feed direction (Y) a feeding area (5), a cutting assembly (3) and a measuring path (4) for the products (2), the measuring path (4) being configured to receive on a respective receiving plane (4a) the products (2a) cut by the cutting assembly (3). The method also provides for arranging a storage (6) divided into a plurality of compartments (7) downstream of the measuring path (4), for receiving the cut products (2a).