Analysis of Braking Advance and Retract Positioning System

The analysis and packaging process of the brake advance and retreat positioning system is as follows: the sheet wrapping paper is drawn out from the reel 1, and then is formed by the former 5 and the pulling roller 6 and the longitudinal sealing roller 7 through the photodetector 2 to form the packaging. The packaging bag that has been filled with packaging materials is shaped up and down for output, and sent to the horizontal sealing head 8 by the conveyor belt for horizontal sealing and cutting to discharge the finished product. The transmission part is: the main motor M1 transmits the motion to the transverse sealing drive shaft, and then drives the transverse sealing head to drive through the unequal speed mechanism 9. The unequal speed mechanism is used to adjust the instantaneous speed of sealing and cutting of the transverse sealing head 8 to make it match the packaging. The bags move in synchronised speed. The other way is adjusted by the stepless speed change differential mechanism 13, which can be done manually or controlled by a single-phase servo motor. The desired bag length can be obtained by adjusting the continuously variable transmission differential mechanism 13 . The last way goes through the differential mechanism 18 to the dropper conveyor chain. The differential mechanism 18 is an automatic adjustment mechanism, which is mainly used to adjust the synchronization between the hook conveyor chain and the horizontal head. During the packaging process, the photoelectric sensor is used to detect the moving speed of the wrapping paper and compare it with the horizontal sealing speed to determine whether it is slow or fast. The overrunning clutch electrical system controls the overrunning motor M3 to make it run or brake to stop, so as to achieve error compensation. Purpose. 3 Speed u200bu200bdetection and wrapping paper length measurement In order to ensure accurate positioning during the packaging process, the paper feeding speed and the transverse sealing incision speed are two parameters that must be measured accurately. How to automatically measure the length of the wrapping paper during the positioning process to match our production settings is also very important. The measurement of the paper speed is done by the photoelectric proximity switch 17. We record the pulse period output by the photoelectric proximity switch measuring the paper speed as paper and its derivative 1/T paper is the transmission speed of the paper feed roller. The transverse sealing notch speed is measured by the photoelectric proximity switch. We denote the pulse period output by the photoelectric proximity switch of the knife cut degree as T knife, and its reciprocal 1/T knife is obtained by indirect calculation of the transverse sealing speed. In the packaging design, the wrapping paper is pressed tightly on the feeding roller, and the linear speed of the pressing roller is the feeding speed of the wrapping paper V paperu003dπD/T paper, where D is the diameter of the feeding roller. Cut length L paper u003d V paper T knife u003d πDT knife / T paper