The positive and negative pressure integrated machine is also called a thermoforming machine. The positive and negative pressure integrated machine is customized. It is a machine that heats the film and forms it by vacuum or air pressure. Today, LITAI will share with you the advantages of the positive and negative pressure integrated molding machine, the difference with the negative pressure molding machine and the operating procedures, we hope it can be helpful to everyone.
1. The product processed by the positive and negative pressure integrated molding machine has a good molding effect, the groove lines are clear and in place, and the processing of the high-gloss film can achieve the effect of baking paint, and the four sides will never be degummed. The three-dimensional effect, gloss, and adhesion can all meet the customer's technological needs.
2. Different from the previous welding process, the frame wall panels of the positive and negative pressure integrated molding machine are assembled without welding, and 6 wall panels are used, which is greatly Enhanced the stability of the machine.
1. Different concepts
Positive and negative pressure integrated molding machine, generally speaking, in addition to negative pressure, it also has a positive pressure. When the machine is in operation, the bottom is pumping the top pressure, not only the bottom negative pressure is vacuuming, but also the top pressure is added, so it becomes a positive and negative pressure.
The negative pressure molding machine is only vacuumed below, and there is no pressure on the top, so it is called a negative pressure machine.
2. The finished product has different effects
Positive and negative pressure integrated molding machine, the three-dimensional sense of the workpiece water chestnut, concave-convex surface, groove surface, corners, etc. will be stronger.
Negative pressure forming machine, because it is only the function of negative pressure, does not add any pressure, and can only be pulled down by airflow, so the three-dimensional effect of the corners, grooves and other positions of the workpiece after processing is not strong.
3. Different degrees of peeling
Positive and negative pressure integrated molding machine, when working, the transmission is in place, so that the workpiece is not easy to release.
Negative pressure forming machine, the temperature transmission is not enough, so the relative adhesion will be relatively poor, and the product is easy to fall off after many times of wear.
1. Before starting, carefully check the power supply, control system and heating system of the positive and negative pressure blister molding machine, mainly check whether it is normal, add lubricating oil according to the requirements of the manual, whether the button is in the correct position, and start the trial operation according to the requirements .
2. Correctly install the mold on the positive and negative pressure suction molding machine according to the requirements in the instruction manual.
3. When the raw material must be dried, it should be dried in the oven according to the regulations.
4. Check whether the raw materials meet the requirements of the positive and negative pressure integrated molding machine.
5. Set the mold adjustment parameters according to the specific conditions of the mold, including various parameters such as opening, closing and ejecting, to ensure the normal, stable and safe operation of the mold.
6. Preheating the mold can be carried out by setting the required temperature according to the thickness of the processing material.
7. Only when the material temperature and the mold temperature reach the predetermined parameters, can the material be loaded. When charging, it is strictly forbidden for hard objects and metal objects to enter the mold. When discharging, carefully check whether there are impurities and sundries in the mold.
8. During the operation, you should pay attention to the changes of temperature and pressure at any time. If there is an abnormal situation, you must stop the machine, turn off the power supply, and wait for the mechanic to repair and restore it before it can be used again.
LITAI MACHINERY Co., Ltd. was established in 2001, is a professional manufacturer of automatic multi-station plastic thermoforming machine, plastic cup production line, BOPS plastic thermoforming machine, mold, PET sheet extruder and multilayer PP/PS sheet We are a source manufacturer integrating production, R&D, manufacturing and sales of industry and trade. Welcome new and old customers to come to consult!