Application of Rotary Vane Vacuum Pump in Blister Machine

The blister machine is a machine that absorbs the heated and plasticized PVC, PE, PP, PET, HIPS and other thermoplastic plastic coils into various shapes of packaging boxes, boxes and other products. Using the vacuum suction generated by the vacuum pump, the heated and softened PVC, PET and other thermoplastic plastic sheets are blistered into various shapes of vacuum covers, blister trays, blister shells, etc.

It has the following characteristics:

1. High efficiency and energy saving, more than 70% energy saving.

2. The rotary vane pump adopts a 13 kg load air compressor head, and runs at a light load in a semi-vacuum state, the theoretical life is up to 400,000 hours (equivalent to 80 years), and there is no need to replace the head within 20 years.

3. No need for a lot of water, saving water bills and water pipeline works.

4. The rotary vane pump adopts frequency conversion control to automatically adjust the degree of vacuum to provide stable vacuum pressure and reduce production failures.

The vacuum pump is mainly used in the forming process of the blister. The suction force generated by the vacuum pump is used to heat and soften the blister material, and it is closely attached to the blister abrasive tool to form the product. The thickness of the material is mainly classified into two types: thick material and thin material. kinds of categories.

How to choose vacuum pump for blister machine:

When choosing a vacuum pump for a blister machine, it is necessary to select a vacuum pump according to the specific process. The following two main parameters are mainly used as a reference:

①Vacuum degree: The so-called vacuum degree is a way of expressing the thinness of the air, usually expressed in units such as Pa, Mba, mmHg, etc.

After the blister product is formed, most of the bubbles in the product are because the vacuum degree cannot meet the requirements, which leads to the phenomenon of defects in the product. Compared with products with deep grooves, the vacuum requirements are relatively high.

②Flow: Refers to the amount of fluid that the vacuum pump removes flowing through the closed pipe or effective cut-off per unit time, usually expressed in m3/h, l/s, and l/min.

Vacuum flow is an important indicator for measuring suction. When we choose a vacuum pump, we should pay attention to the specifications and thickness of the product to calculate how much air needs to be pumped out in one hour or one minute, so as to determine how much flow vacuum pump is required.

Compared with this kind of cold mechanical equipment, many users often neglect its maintenance. The application of rotary vane vacuum pump in blister machine, like other mechanical equipment, requires daily maintenance to better exert its performance. We are maintaining There are a few issues to be aware of:

1. The vacuum pump oil should be replenished in time, and the color of the oil mirror should be observed. If the color becomes black and thick, it must be replaced.

2. If abnormal noise occurs in the vacuum pump, it is necessary to stop the operation of the pump, check the reason for the noise generated by the pump, and prevent the wear of the pump cylinder.

3. The built-in vacuum pump oil mist separator should be replaced in time, usually every 2000 hours, to prevent the oil mist separator from failing and causing the pump to emit smoke.