Digital phasing technology of the cover machine (2)

A manual phase adjustment device (shown in Fig. 3) is installed on the paper conveyor frame of the existing model cover machine of the company. The key difference from this patent design scheme is that the axis of the wave generator in the harmonic gear differential mechanism is rotated. Manually, the locking of the wave generator shaft is also accomplished by manually screwing the locking screw. There is no numerical adjustment of the electronic control system to achieve a fast, numerically controlled phase adjustment of the face paper and the bottom paper.

In the cover machine models common in the existing market, during the use of the operator, the finished product is usually sampled at the end of the unit. After observing the misalignment of the board, the linear displacement value L that needs to be adjusted is estimated and then returned to the middle of the unit. Special tool, manually loosen the locking screw, shake the handwheel, and turn the wave generator shaft of the harmonic gear differential mechanism to form the differential between the upper and lower channel chain rows to achieve the paper conveying and the bottom paper conveying. Phase adjustment, tighten the locking screw to lock the adjustment hand wheel, and then to the end of the unit to sample the product, observe the change of the dislocation amount of the surface paper and the bottom paper. If the expected adjustment amount is not reached, return to the middle of the unit and manually unscrew it. Lock the screw and shake the handwheel. Usually it takes several iterations to reach the desired adjustment.

The FMl450 coated machine with digital phase adjustment system has the following advantages compared to the company's existing model cladding machine and the common cladding machine in the market:

1) The numerical phase adjustment system's execution unit and control unit are connected by cables. The execution unit is installed in the middle of the unit. The display and operation interface of the control unit can be set in the central control cabinet, or can be set at the finished product sampling point. The input adjustment value L is input, and the execution unit is controlled remotely, which is convenient for operation and improves the adjustment efficiency.

2) When the board misalignment is observed, and the linear displacement value L to be adjusted is estimated, the patent can input the target value to be adjusted by pressing the key, and the electric control system can accurately output the displacement in one step, and there will be no sampling during the visual adjustment process. The "overkill" phenomenon.

3) Since the stepper motor is used to adjust the motor, the patented controller design ensures that the second board that implements the adjustment can correct the misalignment, achieve the instantaneous effect in continuous production, and avoid the objectively "dragging" caused by repeated sampling, visual inspection and manual approach. , reduce "intermediate" and reduce scrap rate.

4) The digital phase adjustment system makes full use of the characteristics of step-by-step motors: “Quick starting, reversing and braking, and self-locking ability when one phase winding is energized for a long time”. The harmonic gear differential mechanism can be locked out without manually screwing the locking screw.