The invention preferably relates to a compression roller station for rotary tableting machines with a guide profile which can be locked to the rotary tableting machine and comprises two side surfaces on which a pair of upper and lower shaft mountings for compression roller shafts are arranged externally in each case, so that two pairs of compression rollers can be attached to the same guide profile. In preferred embodiments, the shaft mountings have a laterally outwardly open shape, particularly preferably a u-shape, and are arranged for a swivelable mounting of compression roller shafts. In a further aspect, the invention relates to a rotary tableting machine comprising such a preferred compression roller station.

Provided is a press-forming apparatus including: a punch; a die having an inclined surface inclined toward a hollow part into which the punch is inserted and; a die plate holding the die; a blank holder having a holding surface facing the inclined surface of the die; a die load sensor detecting a load in a pressing direction, a load in a first direction perpendicular to the pressing direction, and a load in a second direction perpendicular to the first direction; a controller that calculates a normal force of the die based on the loads in the pressing direction, in the first direction, and in the second direction, the loads being detected by the die load sensor, and calculates the amount of correction of clearance between the die and the blank holder based on the normal force of the die; a first driver that moves the die in the pressing direction based on the amount of correction of clearance; and a second driver that drives the punch in the pressing direction.

A power conversion device and a press apparatus capable of preventing an excessive current in a DC-link capacitor are provided. The power conversion device 10 includes a voltage-doubling rectifier circuit 12. In the voltage-doubling rectifier circuit 12, in a voltage-doubling rectification mode, a common connection node Nc between two capacitors 102a and 102b is connected to a predetermined node. A current detector circuit 107 detects a switching current (IL) flowing in the switching elements SW1 and SW2, and a current detector circuit 108 detects a load current Ild of a load 15. In a mode switching period from a full-wave rectification mode to a voltage-doubling rectification mode, a controller circuit 110 controls the switching of the switching elements SW1 and SW2, based on the switching current (IL) and the load current Ild.

A method is described for loading a plant product, preferably must or grape, inside a fermentation tank (12) comprising on its top a loading mouth (14), comprising the steps of: moving a quantity of plant product by putting it inside a container (50) coupled to a guide (22) arranged to guide it up above the loading mouth and, there, and transferring said amount inside the tank. The method ensures easy handling of the product.

A method is described for loading a plant product, preferably must or grape, inside a fermentation tank (12) comprising on its top a loading mouth (14), comprising the steps of: moving a quantity of plant product by putting it inside a container (50) coupled to a guide (22) arranged to guide it up above the loading mouth and, there, and transferring said amount inside the tank. The method ensures easy handling of the product.

A press load measuring apparatus includes: strain gauges attached to respective columns of a press machine and configured to detect strains generated in the respective columns respectively in association with a press load acting on a slide of the press machine, an inertial force calculator configured to calculate a slide inertial force proportional to a product of a mass of a slide and a member connected to the slide and a slide acceleration detected by an acceleration detector, and a press load calculator configured to calculate press partial load signals before calibration based on a strain signals detected by the strain gauges, eliminate a slide inertial force signals from the press partial load signals before the calibration, and calculate calibrated press partial load signals.

A press head for a press machine used to press-fit a connector to a printed circuit board includes a press motor operable in a pressing operation, a driver assembly operably coupled to the press motor and movable during the pressing operation, and a press anvil operably coupled to the driver assembly and movable by the driver assembly during the pressing operation. The press anvil has a load cell housing holding a load cell and a contact plate coupled to the load cell housing and engaging the load cell. The contact plate has a contact surface configured to engage the connector or a seating tool for the connector and configured to press the connector toward the printed circuit board during the pressing operation. The load cell measures a pressing load of the contact plate during the pressing operation.

A method for monitoring and assessing correct position P.sub.i of a work slide of a wedge drive tool in a press, without a position sensor. The slide of the wedge drive tool is actuated from an end position (X.sub.E) back to the starting position (X.sub.A) of the slide by a spring. The spring is arranged in the wedge drive tool. The press is opened from a lower press position to an upper press position while a slide bed of the wedge drive tool is relieved. The position of the slide is indirectly detected in that at least the restoring force of the spring is detected and evaluated.

Provided a die lubricant rotating spray tray device, wherein the nozzles, the connecting sleeve bodies, the nozzle connecting pipes, the air pipe joints and the lubricant pipe joints are sequentially connected to form independently-communicated cavity pipelines, compressed air is input from the air pipe joints, a lubricant is input from the lubricant pipe joints, the rotation driving mechanisms drive the spray tray rotators to rotate through the transmission mechanisms, and the spray tray rotators drive the nozzles to rotate, so that the same dosage of the lubricant is sprayed on the maximum pitch circle surfaces of upper and lower dies, the aim of uniformly spraying the forging lubricant on the working surfaces of the upper and lower dies is achieved.

A press machine includes: a learning-model generating unit that uses one data from among data collected from sensors, as an objective variable, and uses data other than the one data as an explanatory variable to perform machine learning to generate a learning model for the one data, the generation being performed for all the data; a predicted-value calculating unit that inputs an actually measured value of data other than one data from among the data collected from the sensors, into the learning model for the one data to calculate a predicted value of the one data, the calculation being performed for all the data; a degree-of-abnormality calculating unit that calculates a degree of abnormality based on a difference between an actually measured value and a predicted value of the data; and a degree-of-abnormality outputting unit that outputs the calculated degree of abnormality.