Effective Solutions for Bottom Accumulation in Blow Molding Machines

When it comes to bottom accumulation in blow molding machines, there are several reasons behind it, including inadequate temperature or processing methods during production, as well as short blow molding time. However, the specific analysis may vary depending on the circumstances. Let's take a closer look at how to tackle the issue of bottom accumulation.

One of the main causes of bottom accumulation is insufficient heating temperature. The inability to blow air into the bottle bottom during the blow molding process can be attributed to the fact that the heating temperature of the bottle bottom does not meet the predetermined requirements. The solution lies in adjusting the temperature of the heating lamp at the bottle bottom.

Insufficient pre-blowing time is another factor to consider. When the pre-blowing time is too short, it results in uneven air distribution at the bottle bottom, leading to accumulation. The remedy is simple: extend the pre-blowing time.

While less common, a potential issue could be a shortened stretching rod. Generally, blow molding machines go through quality tests before leaving the factory, but there may be cases where small manufacturers fail to meet responsible standards. In such instances, the solution is to replace the stretching rod.

Inadequate high-pressure blowing time can also contribute to the problem. If the high-pressure blowing time set during the process is too short, the bottle bottom may not be fully molded, causing deformation or accumulation. The solution is to prolong the high-pressure blowing time.

Lastly, misalignment or displacement of the bottle bottom mold and the mating mold can result in deformation or accumulation. Adjusting the position of the mold bottom and the mating mold ensures a proper alignment without any deviation.

In general, addressing the issue of bottom accumulation in blow molding machines requires thorough attention to basic procedures. By implementing these effective solutions, manufacturers can minimize or eliminate the problem altogether.