During the plastic bottle blowing machine working process, sometimes the bottom of the bottle will be bulgy or concave so that the bottle can not be placed upright and does not beautiful bottle body. It is caused by improper adjustment of the plastic bottle blow molding machine. It is caused by improper adjustment of the blow molding machine. Next, we will detail how to solve these problems. Hope this article is helpful to you.
How to Adjust the Plastic Bottle Blowing Machine if the Blown Bottle Is Bulgy?
1. Adjust the mold temperature
The temperature of the mold in the plastic bottle making machine is an important factor. If the temperature is too high, it will cause the bottom of the bottle to become thin and bulge. Therefore, this problem can be solved by increasing the amount of cooling water in the mold or lowering the temperature of the mold.
2. Change the discharging speed
Excessive discharging speed will also cause the bottom of the bottle to bulge. Therefore, during the production process, the discharge speed can be slowed down to make the bottom of the bottle thicker, so that the bottle bottom does not protrude.
3. Adjust the center line of the bottle mold
If the center line of the bottle mold is incorrect, it will also cause the bottom of the bottle to bulge. Therefore, it can be solved by adjusting the center line of the bottle mold to make the center line of the bottle mold coincide with the mold closing line of the plastic bottle blowing machine, thereby preventing the bottle bottom from protruding.
4. Adjust the blowing time
The blowing time in the bottle blow mold machine is also a factor that affects the protrusion of the bottle bottom. If you blow for too long, it will cause the bottom of the bottle to become thin and bulge. Therefore, the blowing time can be appropriately shortened during the production process to achieve the effect.
Reasons & Solution Method for Bottle Body Concave
1. Insufficient base material at the bottom of the bottle
Solution: lower the heating temperature at the bottom of the bottle
2. Excessive heating temperature at the bottom of the bottle
Solution: adjust the heating temperature at the bottom of the bottle to an appropriate temperature. Different manufacturers have slightly different temperature adjustments. You can consult the plastic bottle blowing machine manufacturer when adjusting the temperature.
3. Insufficient pre-blow
Solution: extend the pre-blowing time.
4. The high pressure is insufficient
Solution: Increase the high-pressure blowing volume. In order to better solve this, make sure to adjust the parameters of the equipment before the blowing operation to maintain the quality of the blowing bottle.
Plastic Bottle Blowing Machine in YG Machinery
Various types of bottle blowing machines are hot sale in YG Machinery, and the equipment has received good feedback because of its excellent performance in producing plastic bottles with good shapes. We provide considerable after-sale service and can arrange for professional technical personnel to adjust the machine well for you if you need it. In addition, we also supply bottle preform making machines, bottled water filling machines, edible oil bottle blowing machines, etc. If you are interested in them, pls get in touch with us to learn more information.