Inspection Method of Belt Tension in Injection Molding Machines
Check by Tension Meter
Follow the procedure below to check the belt tension of respective units (clamp unit, ejection device, injection drive unit, charge drive unit).
1) See [Appendix] and input span length, belt width and unit mass of the belt to a belt tension meter.
2) Give a light shock to the checkpoint of the belt by using a hammer.
3) Set a tension meter close to the vibrating belt to measure its tension.
4) Belt tension can be judged to be proper if the belt tension is within the target setting range.
Do not touch pulleys around the belt to prevent catching your hands or part of your body.
Check by Press Force
Follow the procedure below to check belt tension of respective units (clamp unit, ejectiondevice, injection drive unit, charge drive unit).
1) See [Appendix] and check amount of deflection and press force of the belt.
2) Check actual press force when pushing the check point of the belt until the belt gets the amount of deflection on the list.
3) Belt tension can be judged to be proper if the press force is within the target setting range.
Do not touch pulleys around the belt to prevent catching your hands or part of your body.
By TOSHIBA MACHINE CO.,LTD.
