A necking and flanging apparatus includes: an inner mold; a necking piece, disposed around the inner mold, where the necking piece is movable along a radial direction of the inner mold, and the necking piece is configured to coordinate with the inner mold to form a necked portion on a housing; and a press-fit piece, disposed around the inner mold, where the press-fit piece is movable along an axial direction of the inner mold, and the press-fit piece is configured to fit the necking piece to press and flatten the flanged portion of the housing.

An example of a blanking die includes a blanking apparatus configured to form a series of at least two metallic blanks from sheet metal, and an ejection apparatus configured to eject a first one of the series of the metallic blanks out of the blanking die in a predetermined direction and a second one of the series of the metallic blanks out of the blanking die in said predetermined direction.

A punching apparatus includes a punch holder and a punching tool. The punch holder includes a guiding body having a mounting cavity to slidably receive the punching tool and a driving assembly connected to the guiding body and provided with a beating element having first and second connecting ends coupled by a threaded coupling that enables a relative rotation for a linear movement of the punching tool with respect to the beating element. A stopping element has a first end fixed inside a connecting cavity in one of the connecting ends and arranged to receive the other connecting end and a second end inserted into a stopping cavity of the other connecting end and sliding inside the stopping cavity.

A method for manufacturing a tear-off lid (27). A lid blank (9) is punched with a punching tool (1, 5) having a die (6) and a cutting punch (2, 3) to form a lid ring (8) with a central removal opening (17) surrounded by a sealing flange (18). The edge of the removal opening (17) is then formed by drawing to a collar (20) projecting from the sealing flange (18) on the intended inside of the lid (underside), the collar (20) is rolled up at its free end and a tear-off foil (24) is sealed or glued onto the sealing flange (18) on the intended outside of the lid (upper side). In accordance with the invention, the die (6) is arranged on the inner side (bottom) of the lid and the cutting punch (2, 3) is moved into the die (6) from the outer side (top) of the lid while punching out a punched pad (16) and the punched pad (16) is conveyed by compressed air through the die (6) to a conveyor (33) by means of which it is removed from the tool area. It has been shown that by this measure the known and established processes and devices for the production of tear-off lids can be modified with very little effort in such a way that during the punching of the lid blank (9) the punching or cutting pad is produced on the intended inner side (underside) of the produced lid ring (8), which is desirable when producing lids with re-verse curl.

A method includes obtaining stamping system data from a stamping system data controller and vibration data from one or more vibration sensors disposed at the conduit; selecting a baseline vibration threshold and a frequency filter from among a plurality of frequency filters based on the stamping system data; generating a plurality of measured vibration values based on the vibration data and the frequency filter, where each measured vibration value from among the plurality of measured vibration values is associated with a given iteration from among a plurality of iterations of a stamping process; determining whether the conduit is in an obstructed state based on a comparison between a set of measured vibration values from among the plurality of measured vibration values and the baseline vibration threshold; and performing a corrective action in response to the conduit being in the obstructed state.

A processing device is provided which feeds a long plate body from an upstream side to a downstream side and sequentially carries out a press work including a blanking work to the long plate body. The processing device includes a plurality of stages provided along a feed direction of the long plate body, which has a die that applies the press work to the long plate body and a plurality of lifters provided along the feed direction of the long plate body which have lift-up parts that lift up the long plate body from the die. In the plurality of lifters, clearances by the lift-up parts of the lifters arranged in the downstream side are set to be larger than the clearances by the lift-up parts of the lifters arranged in the upstream side.

The invention relates to a punch carrier for a punch machine comprising a piston unit exchangeably arranged on the punch machine, and a punch holder arranged on the piston unit for exchangeably arranging a punch. Furthermore, the invention relates to a hydraulic punch machine comprising: a hydraulically driven punch carrier and a die adapted to a punch. In order to provide a punch machine as well as a punch carrier for a punch machine that reliably allows an easy exchange of the punch to adapt to changing processing requirements, the punch holder has a punch seat transversal to the direction of the longitudinal axis of the piston unit, and a stripper that can be attached to the punch machine and has a passage for the punch, wherein the stripper is designed such that it fixes the punch in an operating position in the punch seat. Furthermore, it is provided that the punch carrier is designed according to one or more of claims 1 to 5.

An example of a blanking die includes a blanking apparatus configured to form a series of at least two metallic blanks from sheet metal, and an ejection apparatus configured to eject a first one of the series of the metallic blanks out of the blanking die in a predetermined direction and a second one of the series of the metallic blanks out of the blanking die in said predetermined direction.

A pilot assembly includes a body portion including an outer surface and an opening defined in the outer surface. A pilot is configured for extending through an alignment hole in a sheet of material and is coupled with the body portion. A shaft of the pilot extends through the opening and beyond the outer surface. A stripper includes a bushing and a resilient biasing member. The bushing is configured for moving with respect to the main body portion and the pilot to push the sheet of material off of the pilot. The resilient biasing member is situated within the body portion and is compressed when the bushing engages the sheet of material.

A pilot assembly includes a body portion including an outer surface and an opening defined in the outer surface. A pilot is configured for extending through an alignment hole in a sheet of material and is coupled with the body portion. A shaft of the pilot extends through the opening and beyond the outer surface. A stripper includes a bushing and a resilient biasing member. The bushing is configured for moving with respect to the main body portion and the pilot to push the sheet of material off of the pilot. The resilient biasing member is situated within the body portion and is compressed when the bushing engages the sheet of material.