CN Mould & Plastic Limited

Machine Maintenance Studies

14
01, 2026
Oil Valve Repair
The control system of an injection molding machine relies heavily on various solenoid valves, with spool-type directional valves being the most widely used in hydraulic control systems. The term "...
01
01, 2026
Daily Machine Maintenance Checklist
Regular maintenance is crucial for extending the lifespan of your machinery and ensuring safe, efficient operation. Here’s a practical daily checklist to keep your equipment in top condition.1. Bolt ...
12
12, 2025
Sliding Feet
The sliding feet mechanism for the moving platen is an auxiliary device used to support the moving platen and ensure that the four tie bars do not bend. If this device is adjusted too tightly, it will...
27
11, 2025
Lubrication Maintenance
Moving parts of the machine are equipped with lubrication devices and lubrication points.1. Fixed-Resistance Lubrication SystemThis system is configured with damping distributors. When the lubrication...
21
11, 2025
Heating Barrel and Circuit Maintenance Guide
The heating barrel serves as the core component of the injection molding machine's thermal system. The heating circuit plays a vital role in the plasticizing process, typically governed by tempera...
12
11, 2025
Injection Molding Machine Safety Mechanism Maintenance Guidelines
Electrical Safety Protection mechanismThe front and rear safety doors of the injection molding machine are equipped with limit switches for protection. Before injection starts, the safety doors must b...
06
11, 2025
Rust in Injection Molds: Prevention and Solutions
Rust is a common but often overlooked enemy of injection molds. Simply put, it's the oxidation of steel, and it can wreak havoc both inside and out – compromising part quality, damaging mold surf...
29
10, 2025
Hydraulic System - Oil Pump: Inspection & Maintenance Guide
Regular maintenance of the hydraulic oil pump is crucial for ensuring system reliability and longevity. Here’s a structured guide to inspecting and repairing key components of the pump.Inspection Che...
24
09, 2025
Troubleshooting Guide: Action-Based Categories
(1) No Action, No Display① Turn off power. Use a multimeter (ohm setting) to check for shorts between AC220V and DC lines, between different DC voltages, and between DC lines and the machine chassis....
15
09, 2025
Mechanical Drive System Components and Inspection - The Barrel
At the heart of the injection unit lies a critical component: the barrel, also known as the plasticizing or injection cylinder. Working in close partnership with the screw, this cylindrical chamber ho...