156B Week 7

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Received all PLC control parts and pressure control valve.

  • Sent all parts(clamps, cutters, etc.) that need to be fabricated to the machine shop.

  • All other parts(frames, pneumatic actuators) sent.

  • Solved the container-shrinking issue.

Accomplishments from Previous Week

• • Report follow-up. (Keyu/Rui/Insik/Alonso)

• Finished CAD drawing for the new design(Shrinking problem) for the bottom cutter with the spring mechanism. (Keyu/Rui/Alonso)

  • Finalized CAD drawing for the clamp, cutter and connecting plates (Keyu/Alonso)

  • Communicated with manufacturers about the part adjust the horizontal positions for bottom cutters. (Keyu/Rui)

  • Purchased parts for the new design(Shrinking problem).(Rui)

  • Started programming for the PLC control(Alonso, Insik)

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Finish the whole assembly for the main frame. (Keyu/Rui/Insik/Alonso)

  • Finish the assembly for the pneumatic actuators.(Keyu/Rui/Insik/Alonso)

  • Finish programming for the PLC controls on WindLDR. (Alonso,Insik)

  • Finish fabricating most parts (clamp, blade, cutter and neck support) (Keyu/Rui/Insik/Alonso)

  • Test the springs and adjust the extension length when put in the container. (Keyu/Rui/Insik/Alonso)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Mind the rotation of the subframe for the bottom pneumatic slider (In person)

  • Material for the clamp should not damage the container surface (In person)

• • • Make sure the bottom support (bottom clamp, neck support) can always keep container stay horizontally.(In person)

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • Recommend put additional roller wheels to against rotation.(In person) - Solved

  • Put more figures in the report for better understanding.(In person) - Working on it now.

  • Mention the starting process in the report.(In person)

  • Follow the sequence: Idea>analysis>test>performance (In person)

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • The roller wheels may have high friction - the bottom pneumatic actuator may not move freely.

  • The cutter may not align with the edge of the flash - the container may be damaged while cutting.

  • Reliability and maintain of the top cutting blade - long blade with a small thickness.

  • Accommodate different geometries.

  • Bottom shrinking problem.

Resources or Information Required but not Available

• • N/A

Schedule

• • Complete the whole assembly(frames) - 5/19

  • Familiarize with the PLC programming software - 5/19

  • Test it on actual containers - 5/26

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $4946.76 Spent

  • $4853.24 Remaining

Progress on Report and Webpage

• • Received commented reports and working on improving it.

  • Uploaded most pictures of fabricated parts and CAD files.