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Instructions for using the laminar flow hood on the filling machine

2023-12-27

A laminar flow hood is a device that shields and isolates operators from products, primarily to prevent product contamination. Air is drawn from the cleanroom and then, using a fan installed in the top pressure chamber, vertically passes through the HEPA filter and operating area, providing ISO 5 (Class 100) unidirectional airflow to the critical area. Exhaust air is discharged from below and returns to the cleanroom area. It mainly consists of a cabinet, fan, high-efficiency air filter, damping layer, and lighting fixtures.

The filling machine can simultaneously fill and seal several ampoules with nitrogen at a time, and is equipped with a light emitting and receiving device. In automatic mode, it has functions such as no-bottle stop filling and high-position stop. In manual control mode, when there is no bottle, it can not only stop filling, but also pause the wire drawing pliers or needle holder at a high position.
The filling machine is equipped with a Class 100 air purifier above. Laminar flow hood The device, main unit, and bottle infeed conveyor belt all have stepless speed regulation. The electrical control box is equipped with control components for main unit speed display, conveyor belt speed regulation, power indicator light, start button, stop button, main unit indicator light, electrical interlock single machine selection, laminar flow operation no-bottle stop filling, and needle holder high position.
Laminar flow hood Filling machine working principle: This machine adopts linear intermittent filling and sealing. Ampoules enter the bottle infeed conveyor belt through the connecting plate, and then are fed into the auger by the conveyor belt. The auger sorts the ampoules in a disordered state and pushes them into the fan-shaped block one by one. The fan-shaped block transfers the ampoules to the walking beam in groups of several ampoules. The walking beam intermittently moves the ampoules to each workstation. The five workstations are: pre-filling workstation; filling workstation; post-filling workstation; preheating workstation; wire drawing and sealing workstation. At the filling workstation, several filling pumps inject the liquid medicine into the ampoules through the filling needles, and the filling volume can be adjusted by the handwheel. At the preheating workstation, the ampoules rotate automatically under the action of the rollers, and the mixed combustion gas blown by the nozzle preheats them. At the wire drawing and sealing workstation, the top of the ampoule is further heated and softened, and is sealed by the wire drawing head, and finally sent to the conveyor belt. All the above operations are completed under the protection of a Class 100 laminar flow hood.

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