Method for implementing a correct winding of a wire on a spool

Method for implementing a correct winding of a wire on a spool, the method comprising the following steps:

• (f1) setting the main geometrical data of the spool on an operation panel of the electronic control unit (by means of dedicated formulas or by means of manually entered data);
• (f2) loading a spool on the machine;
• (f3) acquiring the position of the spool flanges by means of said sensor;
• (f4) calculating the actual spool position and comparing it with the “spool data” set in advance in the electronic control unit in order to check whether the spool loading was successful and whether the spool is consistent with that expected;
• (f5) continuing with the process if the check is positive;
• or stopping the process and reporting the problem by means of an alarm signal;
• (F6) binding the wire to the spool;
• an operator starts the production by activating a specific command;
• (f7) reading the starting measure of the wire pulling action according to the shape and construction geometry of the support/load cell assembly;
• (f8) calculating the servodiameter according to the spool data, the production data and the reading of the pulling measure;
• and
• (f9) calculating the speed of the spool motor according to the servodiameter with the aim of maintaining a constant winding pulling action;
• said method characterized in that it comprises a further step for calculating the angular speed of a motor displacing the wire dispensing device according to the wire winding pitch and according to the pulling error, detected in relation to a given pre-set set-point and to a tolerance value, in order to determine the presence of a possible “valley error”, or of a possible “peak error”;
• and in that if during the spool winding a “valley error” or a “peak error” is detected, the control device decides whether to slow down or to increase the speed of the wire dispensing device with the aim of filling the valley or skipping the peak.