On the Design of Variable Pitch Lead Screw Transmission Mechanism of a Linear Type Blow-Molding Machine
2010
Hochschulschrift
Zugriff:
98
The linear type blow-molding machine with a variable pitch lead screw consists of a heating system, a linear blow-station, a variable pitch lead screw transmission system, and an infeed-and-outlet system. The va-riable pitch lead screw (VPLS) transmission system consists of a slider, a fixed screw, a rotary screw, and a catch device. It transfers the bottle from the heating system to the blow-station. The design of the motion of VPLS transmission system affects the efficiency of blow-molding machine. This works presents a systematic analytical method to design the motion of VPLS transmission system to improve the performance of blow-molding machine. Firstly, the motion of the VPLS transmission system is analyzed. Based on the design requirements and constraints of the motion of trans-mission system, the curve of VPLS is synthesized by applying the cam motion curves (MT, MS, and MCV). According to Newton’s law and the definition of pressure angle, the pressure angle of the cam mechanisms and the kineotastatic analysis are evaluated. The kinematic and kinetos-tatic characteristics are improved based on the optimal theorem by using the Bezier and Fourier series curves as the design curves. As a result, the motion curve by using the optimum method approach improves the ki-nematic and kinetostatic characteristics of the transmission system of the blow-molding machine and decreases the pressure angle of the VPLS and the input force of the transmission device.
Titel: |
On the Design of Variable Pitch Lead Screw Transmission Mechanism of a Linear Type Blow-Molding Machine
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Autor/in / Beteiligte Person: | Chih-ILin ; 林芷誼 |
Link: | |
Veröffentlichung: | 2010 |
Medientyp: | Hochschulschrift |
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