As the core equipment of the printing and packaging industry, the safe operation and standardized maintenance of the hydraulic program-controlled paper cutter are directly related to production efficiency and personnel safety. This article takes the typical model of Wandeli Machinery as an example to systematically explain the key points of equipment use and help users maximize the value of the equipment.
1. Safe operation procedures for Paper cutting machine : the red line of life safety
1-1. Must-check before starting: Before each start, it is necessary to check whether the photoelectric protection switch is sensitive and reliable, test the empty knife three times and observe whether there is any abnormal knife return phenomenon. If any problem is found, it must be eliminated immediately, and it is strictly forbidden to operate with the disease.
1-2. Operation restricted area: It is strictly forbidden to put your hand into the knife door when the equipment is running. Even if a paper jam occurs, you must not grab the paper with your hand. You must stop the machine immediately and confirm that the cutter is fully returned before taking the paper.
1-3. Environmental management: It is forbidden to place any tools (such as steel rulers, wrenches, etc.) on the top of the machine to prevent accidents caused by falling; the power supply must be cut off and special locks must be used when repairing or changing the knife. Wandeli Machinery's models are specially equipped with a knife lock safety design to eliminate the risk of knife slipping from the source.
2. Correct startup steps : Guarantee of accurate startup
1-1. Pretreatment: Clear the debris on the work surface, check whether the power plug is connected to the AC220V±10% power supply, and ensure reliable grounding.
1-2. Startup process: Turn the protection switch to the "ON" position, turn on the power and observe the display status of the CNC screen and the automatic calibration action of the paper pusher to confirm that the system is powered on normally.
1-3. Pressure setting: Set the front/rear pressure and paper pressing pressure through the large-screen LCD interface. Wandeli models support 0.01mm data resolution and can store 100 sets of cutting parameters, greatly improving the accuracy of repeated operations.
3. Scientific adjustment of paper pressing pressure: balance between performance and life
Adjustment method: Loosen the locking screw and rotate the adjustment handle-clockwise to increase pressure and counterclockwise to reduce pressure. The standard working pressure is recommended to be set to 4Mpa (recheck after locking).
Key taboos: The cutting pressure is strictly prohibited to exceed the rated value of 8Mpa, otherwise it will cause overload and damage to the hydraulic system. If the paper cutting phenomenon occurs, check the blade passivation first instead of blindly increasing the pressure.
Professional tips: The servo drive system of WONDLY Machinery can achieve a paper pushing speed of 18m/min, with a positioning accuracy of 0.01mm, and still ensure the cutting quality under low pressure, significantly extending the life of the equipment.
4. Key points of maintenance of hydraulic paper cutters : the password for long-term operation of equipment
Lubrication management:
The worm gear box uses N320 turbine lubricant, which is replaced after 10 days of first use, and then replaced every 6 months (continuous operation) or 10 months (8 hours per day).
Grease the bearing lubrication points every 20 days, and cooling measures need to be added when the ambient temperature is greater than 45℃.
Hydraulic system:
Replace the hydraulic oil after the initial installation of the equipment for 200 hours, and replace it every six months thereafter.
Use anti-wear hydraulic oil and filter it through 200 mesh copper wire cloth. The oil temperature needs to be maintained in a reasonable range of 10-65℃.
5. Paper cutting machine Standardized operation process: integration of efficiency and safety
1. Paper arrangement → Place workbench → Position paper pusher
2. Press down paper presser → Record pressure value → Execute cutting
3. Lift paper presser → Adjust paper direction → Push paper pusher according to size
4. Data entry system → Program storage parameters
This process combines more than 50 fault self-diagnosis functions of Wandeli Machinery to monitor equipment status in real time and prevent abnormal shutdown.
Safe operation + regular maintenance = maximize equipment value. Wandeli hydraulic program-controlled paper cutter builds a triple protection system through 6 sets of grating protection, servo drive system and intelligent diagnosis module. Operators must follow the iron rule of "stop when leaving the knife, do not enter the area, and do not overload", and the manufacturer will conduct hydraulic seal inspection and program calibra.
