Design of a Timing Screw Mechanism with the Capability to Transfer and Rotate Cylindrical Parts, Manufactured Using 3D Printing Technology

Document Type : Original Article

Authors

1 Assistant Prof. Department of Mechanical Engineering, Urmia University of Technology, Urmia, Iran.

2 Undergraduate Student, Department of Mechanical Engineering, Urmia University of Technology, Urmia, Iran.

Abstract

Timing screws are one of the main mechanisms used in packaging and conveying industrial parts lines. Despite their variety and extensive use, there are few scientific resources on their design principles. This research addresses the design, construction, and performance evaluation of a timing screw mechanism capable of rotating 180 degrees and reversing the direction of the packaging line for cylindrical parts. First, the main design parameters of the timing screw were examined, and their values were set based on assembly requirements. Since the screw is a standard linear-moving screw, extensions were added to enable 180-degree rotation. A computer simulation was used for this process. After determining the dimensions and creating a 3D model of the timing screw and its attached assembly, manufacturing was carried out with thermoplastic polylactic acid using the filament-freeform fabrication method. To evaluate performance, an electric motor was installed on the assembly, and tests were conducted on real parts. The practical tests show that the designed timing screw performs its intended function accurately. Additionally, the average surface roughness measured at 5.34 micrometers is considered a desirable result given the 3D printing process and proper operation.

Keywords

Main Subjects


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Volume 16, Issue 62 - Serial Number 62
Serial number 62 summer 2025
September 2025
Pages 1-11
  • Receive Date: 08 February 2025
  • Revise Date: 05 October 2025
  • Accept Date: 12 October 2025
  • Publish Date: 21 September 2025