The single station paste and wax injection machine is a key equipment used in the precision casting industry for wax mold production. It integrates paste and wax injection functions and can convert liquid wax into paste wax and accurately inject it into the mold to form the desired wax mold shape.
1、 Structural features:
1. C-type cantilever structure: Some single station paste and wax injection machines adopt a C-type cantilever structure, such as the YY-SMZJ5T wax injection machine from Qinhuangdao Yinyuan Casting Machinery Equipment Co., Ltd. This structure is easy to operate, and the operator can intuitively observe the working condition of the wax pressing cylinder. The structure is simple and does not require lubrication.
2. Four column structure: Some equipment adopts a four column structure, such as the YT-DMZJ20T wax injection machine from Qinhuangdao Yutian Technology Co., Ltd. It belongs to the large tonnage mobile workstation bottom injection wax machine and has good stability and load-bearing capacity.
Working principle: The liquid wax first enters the constant temperature system of the equipment, and through an advanced temperature control system, the liquid wax at 80-100 ° C is transformed into a paste wax with a constant temperature. For example, the YY-SMZJ5T wax injection machine can control the wax temperature at 60-65 ° C. Then, under the action of the hydraulic system, the paste wax is accurately injected into the mold cavity through the nozzle to complete the wax injection process.
3. Main parameters: Taking the YY-DMZJ20T single station cylinder free wax injection machine as an example, its clamping force is available in various specifications such as 8T, 10T, 15T, 20T, etc. The clamping speed is 10-25mm/s, the longitudinal stroke of the nozzle is 50-250mm, the front and rear stroke of the nozzle is 0-250mm, the maximum wax injection speed is 0.3L/s, the wax storage tank volume is 100L, and the maximum wax injection volume is 5L at a time.
2、 System configuration:
1. Hydraulic system: Imported or joint venture brand hydraulic components are usually used, such as the hydraulic station and stacking valve of YY-DMZJ20T wax injection machine, which are joint venture products from Italy. The motor and pump are imported from Taiwan to ensure the stability and reliability of the system, providing sufficient clamping force and wax injection pressure.
2. Electrical control system: Generally controlled by a PLC program controller, such as Omron PLC, combined with intelligent instruments to control temperature, time and other parameters, to achieve automatic operation of the equipment, and has two working modes: manual and automatic.
3. Temperature control system: Adopting methods such as forced rapid circulation of hot water for overall heat tracing, the temperature deviation of the entire system is ≤ 3 ℃, ensuring stable wax liquid temperature. The nozzle seal adopts temperature resistant and oil resistant high-quality fluorine rubber rings to ensure sealing performance.