Abstract:
A method of measuring a length of sections of extrados or intrados curves of an elongated workpiece travelling in a bending machine along a forwarding direction, the elongated workpiece having cross-sections each of which is separated by a neutral axis in both an extended portion and a compressed portion when the elongated workpiece is subjected to bending, and at least a neutral cross-section, i.e. not subjected to bending, neutral cross-section beyond which the bending of the elongated workpiece begins along the forwarding direction thereof, provides a measuring instrument positioned so that it engages either an extrados or an intrados point of the elongated workpiece near the neutral cross-section, but displaced therefrom in the forwarding direction of the elongated workpiece. Further, a measuring instrument on a bending machine that embodies the method is described.
Abstract:
A machine for continuously bending an elongated workpiece at predetermined radii, machine that uses a series of driving rollers (1, 2, 3) for bending, includes a 2D laser displacement sensor (5) downstream the series of driving rollers (1, 2, 3) for bending and a computer (7) that is coupled among other to the 2D laser displacement sensor (5) for calculating a radius of a bend section and comparing the calculated radius of curvature with the desired radius of curvature. The computer (7) is coupled to a length meter (4) for measuring a length of the bend section concentrically to the elongated workpiece (T) and, further, to operating elements (8) adapted to operate a roller (2) of the series of driving rollers (1, 2, 3) for bending in order to adjust it on the base of a difference between the measured radius of curvature and the desired radius of curvature.
Abstract:
A pipe-bending machine mandrel includes a rigid member (5), inserted inside a pipe (T) which has an internal dimension Di and can tilt in a bending operation with a mean radius Rm as measured between the rotation center (O) of a bending die and the longitudinal axis (l) of the pipe (T). The rigid member (5) has a proximal side profile with respect to the rotation center (O) and includes a concave intermediate portion as generated by a radius Rci, and a distal side profile with respect to the rotation center (O) that includes two convex, divided, end portions as generated by respective radius Rce, where Rci=Rm−(Di/2)+t, and Rce=Rm+(Di/2)−t, t being a term varying according to the accuracy of the dimensional characteristics of the pipe and of the curve to be obtained.
Abstract:
A method of use of a unique product identification code (UPIC) being emitted by a database manager, associated with and applied on a product provides a first UPIC query with a database manager for information on the same product by a user through a software application, an evaluation of a validity of the UPIC by the database manager, a response of the database manager to the user with information related to the product, or if the same product was already purchased, a creation of a provisional connection between the user code and the UPIC queried through the software application. The user provides proof of an alleged purchase of the product by a second UPIC query that is made by the same user at the end of a determined first time period from the first UPIC query, with no other user having queried the same UPIC before the second UPIC query.
Abstract:
A pipe bending machine having an improved movement transmission to a bending die comprises a body (1) and a head (2). Housed in the body (1) is a motor (3) having an output shaft (4) supporting a driving gear wheel (5), which is located in the machine head (2). Located in the same machine head (2) is a driven gear wheel (8), which is connected to a pipe bending die (6). A couple of intermediate gear wheels (9, 10) engage both the driving gear wheel (5) and the driven gear wheel (8).