Abstract:
A method to control a mixer (10) for concrete, mortar, powders, dry and semi-dry granulates, cement-based mixes or similar or comparable mixes or mixtures, comprises an input step in which it provides to communicate to a control and command unit ( 15) of the mixer (10) a plurality of input data correlated to the formulation of the mix that has to be treated in the mixing cycle, a detection step in which it provides to detect the values of an electric quantity characteristic of the electric power line of a drive unit ( 12) comprised in the mixer (10), a processing step in which the control and command unit ( 15) processes the data detected in the detection step in order to calculate the overall active power that is generated as a function of time, and to carry out one or more verifications, comparing the data processed with one or more of the respective data introduced among the input data, in order to transmit to a programmable logic controller ( 14) that commands the functioning of the mixer ( 10) alternately a consent signal to discharge the mix subjected to the mixing cycle, or an anomaly signal selectively correlated to the verification or verifications that have had a negative outcome, so that the operator can respectively command in the first case the discharge of the mix from the mixer ( 10), and in the second case the consequent corrective actions on the mixing cycle.
Abstract:
The device for connecting a tool to a machine comprises an attachment body (2) for being attached to the machine, and which develops along a longitudinal axis (L); a tool holder body (3); an articulated connection member (4) which mutually connects the attachment body (2) and the tool holder body (3), and which allows the rotation of the tool holder body (3) around a rotation axis (R) transversal to the longitudinal axis (L), the articulated connection member (4) having at least one lateral surface (6) transversal to the rotation axis (R); a control and measurement rotation element of the tool holder body (3); and a display element (7) for displaying the rotation angle of the tool holder body (3) in relation to the attachment body (2), electronically connected to the control and measurement rotation element. The display element (7) is arranged at the articulated connection member (4) and parallel to the lateral surface (6).
Abstract:
An apparatus intended to cut down polluting agents, and in particular thin powders emitted by internal combustion engines, comprises a hollow main body (11) which can be directly applied to the exhaust line of the engine, in said main body (11) being injected a liquid under pressure, transversally with respect to the exhaust gas flow, by means of nozzles (14, 14', 14' ' ) fed by a specific tank (15). The liquid and the polluting agents therein, taken apart from the gas flow thanks to the washing action of the liquid under pressure, is recovered through collecting channels (20) housed in said main body (11) and redirected to said tank (15) provided with a filter (28) apt to restrain the polluting powders. Into the main body (11) are housed baffles (36) and filters apt to help collecting the washing liquid, whereas proper indicators (24, 25, 26), mounted mainly in correspondence to the tank (15), monitor the status of the apparatus.
Abstract:
A mixing blade for a mixer for concrete, mortar, powders, dry or semi-dry granulates, mixtures with a cement base or similar or comparable mixtures or mixes comprises a shank which develops along a longitudinal axis and a mixing wall connected inclined to one end of said shank, transverse to the longitudinal axis. The mixing wall comprises, on one side of the longitudinal axis, a first front mixing plate, and on an opposite side, a second front mixing plate angled backward toward the longitudinal axis with respect to the first front mixing plate, by an angle of inclination of the plate.
Abstract:
A mixing blade for a mixer for concrete, mortar, powders, dry or semi-dry granulates, mixtures with a cement base or similar or comparable mixtures or mixes comprises a shank which develops along a longitudinal axis and a mixing wall connected inclined to one end of said shank, transverse to the longitudinal axis. The mixing wall comprises, on one side of the longitudinal axis, a first front mixing plate, and on an opposite side, a second front mixing plate angled backward toward the longitudinal axis with respect to the first front mixing plate, by an angle of inclination of the plate.
Abstract:
An hydraulic force-multiplying actuator is disclosed comprising adjustable pneumatic reaction means (60) adapted to exert a constant reaction pressure and to perform a constant-force stroke, and supplied by compressed-air supplying ducts (52); the actuator further comprises a shoulder (50) for the oil in the working area, and at least one element (11) adapted to prevent the pad of the reaction means (60) from rotating.
Abstract:
The present invention relates to a mixer for concrete and similar mixtures, of the type provided with a rectangular mixing tank (2), on whose lateral walls (4) the ends of two counter-rotating parallel mixing shafts with horizontal axis are fitted, it being provided that each end of each shaft is coupled with a geared motor (5) of standard size and power located externally on the bearing wall (4) of the tank (2).