Experience in maintenance of core components of plastic processing equipment

If plastic processing equipment has failure in use, it will very troublesome to repair it and it will delay the normal work schedule. So in order to ensure the smooth use of plastic processing equipment, it is still necessary to do a good job of the maintenance of plastic processing equipment on a regular basis. Now let’s introduce the maintenance measures of the equipment in detail.

First, injection unit

1. Insist on external cleaning of cylinder core appearance, cylinder block auxiliary column, material pipe motor column, seat cylinder core shaft, etc., to prevent pollution accumulation in the external, and hidden in the crack of plastic processing equipment components, affecting performance.
2. Check the nuts of the plastic processing equipment system regularly to ensure its normal operation.
3. Some workable plastics are removed from threads every three months, as some threads are coated with heat-resistant grease (red lead or molybdenum disulfide) at high temperatures to avoid death by wear.
4. Other than plastics, pigments and additives, shall not be put into the products to damage the screw and additives.
5. When the plastic processing equipment does not reach the pre-adjusted temperature, do not start the hydraulic motor drive, spray glue or loosen, otherwise the screw head is damaged.

Second, clamping unit and pattern

1. Strictly observe external cleaning of the mold mandrel, mold column and upper and lower column to prevent accumulation of dirt and damage to these components during operation.
2. Control the pressure, speed and position adjustment of the parting stroke of plastic processing equipment, and reduce the impact, so as not to damage the formwork and mold.
3. At each closing, the die is opened so that the gap between the upper and lower die is glued. If the mold is fully opened, the plastic processing equipment will be in working condition because of the above template and some self-weight due to the mold. Affect the service life of oil seal valve and other components.
4. Secondary die set screws can prevent the use of high hardness alloy screws. The screw of plastic processing equipment shall be locked into the tooth to a depth greater than the corresponding depth, and the fastening torque shall be appropriate. Before fixing the mold, remember to check that the mold and the fixed surface are clean and use a wipe if necessary.