Have you encountered these problems during the blowing process of the bottle blowing machine?

Everyone may be very familiar with the bottle blowing machine. It is mainly a machine and equipment used to blow bottles. The bottle blowing machine mainly blows plastic particles or softened liquid through certain technological means to become what people need. Bottles, compared with other raw materials, plastic hollow containers are not only lightweight and cheap, but also very safe. They can be seen everywhere in our lives, especially in the various beverage bottles used at home. Made of plastic as raw material, it brings more convenience to people, but what preparations should people make before using the bottle blowing machine?

1. Before using the bottle blowing machine, you should carefully check whether the moving parts are firm and whether the screws are loose. If so, they should be tightened in time to ensure safety and stability during use. .

2. For places where the impact force is very strong, you should check whether the belt transmission part is normal and whether there is serious wear and tear. It needs to be replaced and processed, and lubricating oil needs to be added to each part to ensure the service life of the mechanical equipment. Longer.

Maintaining the bottle blowing machine in a certain order can not only ensure the normal production of the product, but also extend the use time of the machine and equipment. Therefore, when it comes to the maintenance of bottle blowing machines, the following maintenance rules must be correctly implemented to improve product quality and productivity.

1. When the bottle blowing machine fails, it must be repaired as soon as possible. If repairs can be done during power outages or product replacement operations, this will help reduce downtime and will not delay machine production.

2. Parts that affect the blowing quality of the bottle blowing machine need to be replaced or repaired every six months. If there are any parts that affect the quality of bottle blowing, they can be used for a longer period of time, which can reduce maintenance costs.

3. If you want to carry out large-scale maintenance on the bottle blowing machine, it is best to repair it at the same time as the glass melting furnace is being repaired to avoid the bottle blowing machine shutting down during the production process.

What problems do bottle blowing machines often encounter during the blow molding process?

1. Thick at the top and thin at the bottom: delay the pre-blow time, or reduce the pre-blow pressure to reduce the air flow.

2. Thick at the bottom and thin at the top: opposite to the above.

3. There are wrinkles under the bottleneck: the pre-blow is too late or the pre-blow pressure is too low, or the billet is not cooled well here.

4. White bottom: the preform is too cold; over-stretched; pre-blowed too early or the pre-blow pressure is too high.

5. There is a magnifying glass phenomenon at the bottom of the bottle: there is too much material at the bottom of the bottle; the pre-blowing is too late and the pre-blowing pressure is too low.

6. There are wrinkles in the bottom of the bottle: the bottom temperature is too high (the gate is not cooled well); the pre-blowing is too late, the pre-blowing pressure is too low, and the flow rate is too small.

7. The whole bottle is cloudy (opaque): cooling is not enough.

8. Partial whitening: over-stretching, the temperature here is too low, or the pre-blow is too early, or the stretching rod is hit.

The following are the three most common undesirable phenomena in bottle blowing machines:

(1) The overall bottle wall of the bottle of the blow molding machine is too thin. The main reason is that the stretching temperature of the preform is too high and the stretching ratio of the preform is too large.

(2) The bottle of the bottle blowing machine is thin at the bottom and thick at the top. The reasons are that the stretching speed is too slow, the primary blow molding pressure is too high, the secondary blow molding time is inappropriate, and the temperature of the upper part of the preform is low and the temperature of the lower part is high during stretch blow molding.

(3) The bottle of the bottle blowing machine is thick at the bottom and thin at the top. This is caused by the stretching speed being too fast, the primary blow molding pressure being too low, the secondary blow molding time being improperly controlled, and the temperature control of the upper and lower parts during stretch blow molding being improper.

How to choose a cost-effective bottle blowing machine

For bottle blowing machines, many people who are new to the plastic bottle industry need to understand and learn a lot before purchasing them, and they need to buy according to their own needs. The more expensive bottle blowing machine is naturally better, but it may not be suitable for you. Because there are many factors involved in the later production process of the bottle blowing machine, only by finding the right one can it be of maximum use and produce the best benefits.

For some large beverage, mineral water or cosmetics manufacturers, because the packaging volume used is large, it is often integrated with product filling. This type of bottle blowing machine should choose a fully automatic, high-speed, stable and reliable bottle blowing machine. Machine, only such a bottle blowing machine will not affect other links in the later production process and affect the overall production efficiency.

For some small and medium-sized manufacturers, you can consider semi-automatic, two-step bottle blowing machines. On the one hand, it can reduce the cost of purchasing a bottle blowing machine for the first time. On the other hand, this type of bottle blowing machine is also relatively low in production capacity. Some are more in line with manufacturer needs. Because the plastic bottles produced by the bottle blowing machine are hollow products, if they are piled up in large quantities, it will put a lot of pressure on the warehouse. For some individuals or family workshops, you can consider using a second-hand bottle blowing machine at the beginning. The price of this type of bottle blowing machine is relatively low. As long as you understand all the parameters before purchasing, there are still many cost-effective machines worth choosing.

In the world of plastic bottle production, the bottle blowing machine stands as a pivotal tool, enabling the creation of the ubiquitous containers we rely on daily. Proper preparation, maintenance, and understanding of common challenges are essential for ensuring the efficiency and quality of the bottle-blowing process.

A range of machines, from fully automatic high-speed models to semi-automatic two-step machines, are available, allowing you to tailor your choice to your production capacity and budget.

Now, let's address some common questions related to bottle blowing machines:

1. What's the key to maintaining a bottle blowing machine?

Regularly check moving parts and tighten any loose screws to ensure safety and stability.

Monitor and lubricate the belt transmission components, replacing worn parts as needed.

2. How can downtime during bottle blowing machine repairs be minimized?

Attempt repairs during planned downtime, such as power outages or product replacements, to reduce production interruptions.

3. What should be done to improve bottle blowing quality?

Replace or repair parts that impact blowing quality every six months.

Ensure the billet is sufficiently cooled, use appropriate pre-blow pressure, and maintain pre-blow timing.

4. Are there specific bottle blowing machine models for small businesses or individuals?

Yes, small and medium-sized manufacturers can consider semi-automatic, two-step machines to reduce initial costs and better match production capacities.