In daily production on Akiyama series presses, gripper bar maintenance is one of the most common issues encountered by press operators and maintenance personnel. This Japanese-built machine features a compact structure and high cost-performance ratio, with a unique cylinder arrangement. During maintenance, special attention must be paid to the transfer gear backlash. If not addressed in a timely manner, it can at best affect registration accuracy and print quality, and at worst cause extended downtime.
I. Typical Fault Symptoms
Uneven gripper bite force causes paper tail-end deflection and unstable registration; worn gripper pads leave marks on the paper.
II. Common Q&A
Q1: What is the most common cause of gripper bar maintenance?
A: Mainly fatigue of gripper springs and reduced bite force; worn gripper pads or ink contamination.
Q2: What should be noted when handling this on an Akiyama?
A: It should be done in conjunction with the AKIYAMA CNC console / automatic plate-changing system, following standard procedures.
Q3: How can recurrence be avoided?
A: Regularly calibrate gripper bite force.
III. Handling Steps
Use a tension gauge to calibrate gripper bite force tooth by tooth for consistency.
Replace worn gripper pads and clean them.
Grind or replace the gripper opening/closing cams.
Check the straightness of the gripper shaft.
The above methods also apply to models such as Bestech 428, Bestech 629, and Jprint. For actual operation, refer to the AKIYAMA CNC console / automatic plate-changing system and on-site conditions. For complex situations, it is recommended to seek professional maintenance assistance through the printm.cn platform.
