34results about How to "Short changeover times" patented technology

The invention provides a method for replacing a movable pulley block in a bridge crane. According to the method, an original steel wire rope is separated from an original movable pulley block and is wound on another movable pulley block for replacement by connecting and adjusting a nylon rope between each fixed pulley and the corresponding movable pulley, so that the replacement operation of the movable pulley block in the bridge crane is completed, and by comparison of an existing movable pulley block replacement method of the bridge crane, the replacement operation time is shortened, the operation strength is greatly reduced, the workload of workers is reduced, and the operation efficiency is improved.

The invention discloses a probe fatigue impedance testing machine. The probe fatigue impedance testing machine comprises: a box body mechanism; two bearing mechanisms that are arranged in a mirror image mode, wherein each bearing mechanism comprises a supporting mechanism fixed to the box body mechanism, a bearing transverse plate is horizontally arranged on the inner side of each supporting mechanism, a first bearing is arranged on each bearing transverse plate, and a first test probe is arranged below each bearing transverse plate; the riveting test mechanism that comprises a support frame fixed on the box body mechanism, wherein a driving mechanism is fixed at the upper part of the support frame, the driving mechanism is connected with a lifting mechanism through a rotating plate, two second test probes are fixed at the bottom end of the lifting mechanism through a test bearing, and the second test probes are connected with an impedance sensor and a fatigue sensor. The testing machine of the invention can detect the fatigue strength and impedance of the probe at the same time, time and labor are saved, and cost is saved.

The present invention discloses an ultrasonic power system based on high frequency transformer feedback, comprising an ultrasonic power, a matching inductor, an ultrasonic transducer, a non-inductive resistance, a high frequency pulse transformer, a phase discriminator and a DSP, wherein one output end of the ultrasonic power is connected with the matching inductor and the transducer in series in order and then is connected with one end of the non-inductive resistance and an end of a phase discrimination circuit resistance R1 respectively; the other end of the non-inductive resistance is connected with the other output end of the ultrasonic power; the output signal of the phase discrimination circuit is connected with the DSP; a primary terminal of the high frequency pulse transformer is connected with the output end of the ultrasonic power, one end of a secondary terminal of the high frequency pulse transformer is connected with one end of a phase discrimination circuit resistance R4 and the ground, and the other end of the secondary terminal of the high frequency pulse transformer is connected with the other end of the phase discrimination circuit resistance R4 and a 5th pin of an operation amplifier. The ultrasonic power system solves the problem of response delay in voltage phase measurement and reduces system error; and compared with a sensor, the high frequency transformer in the system has the advantages of small volume, light weight and low price.

The invention relates to an antistatic film winding method and its device. The method uses a film winding device, a winding turret is arranged in the film winding device, and two winding steel pipes are fixed at intervals on the winding turret. shaft, near the position of the winding steel shaft, the electrostatic adsorption rod and the cutter are arranged in sequence. After the improvement, an air blowing mechanism is added in the winding device. In an instant, the film leader is immediately blown to the empty reel, avoiding the poor adsorption of the film leader due to the conductive characteristics of the product itself, which not only effectively ensures the success rate of automatic roll change, but also improves production efficiency.