TONVA plastics machine company
1. Open the cooling water of the cooling material barrel of the hollow blow molding machine, pay attention! Need to open all, so as to avoid the occurrence of screw bite phenomenon; At the same time, check the cooling water and start-up system. Make sure water and air do not clog and leak.
2. Preheat the hydraulic oil. If the temperature of the hydraulic oil in the tank of the hollow blow molding machine is too low, the heater needs to be opened.
3. Press the start button of the hollow blow molding machine and stop the machine immediately to check whether the pump is running in the correct direction. If any deviation is found, the power cord of the two-phase connecting motor should be replaced immediately.
4. Hollow blow molding machine should ensure that the hydraulic system is under the condition of no pressure when starting, and then adjust the pressure of the overflow system of each pump to meet the requirements of the pressure value. There are often two pressure systems in large hollow blow molding machine, one is a clamping unit, the other is blow molding unit, two units each have a pressure vent valve. When the pump stops, the pressure vent valve needs to be opened, and when the pump is working, the pressure vent valve needs to be closed.
5. Adjust the position of all travel switches to make the running switch of the moving template unblocked.
6. Connect the heating and temperature control system.
7. Install the mold supporting the hollow blow molding machine. Before installing the mold, clean the surface of the mold and the contact surface with the hollow blow molding machine template.
The above is the large hollow blow molding machine before starting some checks to do, after the above problems are checked, we need to do next:
Check the basic parameters and calibrate the position of large hollow blow molding machine
1. Clean and lubricate all moving parts and fasteners, tighten them in time if they are loose.
2. Check the heating time. Set different heating time for different device areas.
3. Check the air compressor pressure. The range is 0.8MPA-1mpa.
4. Check the water pressure of the mold and extruder.
5. Check and start the water system.
6. Adjust the clearance of the mouth die evenly, and check whether the standard line of the main engine and auxiliary machine is aligned.
7. Start the extruder, mold locking device, manipulator and other operating equipment to carry out no-load operation, check whether the operation of each emergency device is normal, and remove faults in time.
8. According to the requirements of the process conditions, set the temperature of the extrusion blow molding machine head and each heating section and heating section by section.
Preparation before starting of large hollow blow molding machine
In addition to preparing for the start-up of large hollow blow molding machine, raw materials used for the production of hollow blow molding machine are equally important. What we need to do is to ensure that the raw materials used meet the drying requirements of production standards, if not, further drying.
Here want to give you additional expansion point about hollow blow molding products, sometimes, if we are in accordance with the hollow blow molding machine operation manual correct operating the machine, to produce products will appear all sorts of problems, the common problems and solutions of hollow blow molding products can provide some solutions for your reference.
Note that the technical personnel responsible for hollow blow molding machine production need to be trained on hollow blow molding machine operation before formal work.
Because the whole production process of automatic large hollow blowing and molding machine is automatically completed one step, so any mistakes in the production process will lead to production interruption, therefore, it is very important to do a good job of preparation before starting the large hollow blowing and molding machine, and can not be careless.
Post time: Nov-30-2021