Three common faults and corresponding solutions for automatic sealing machines

　　Pharmaceutical Network Technical Article : Automatic sealing machine by the rack, deceleration speed control mechanism, sealing sealing machine structure, conveyor sprigs and electrical electronic control system and other components The principle works that when the package containing the item is placed on the conveyor belt, the seal part of the bag is automatically fed into the running between the two sealing bands, and into the heating zone, the heating block heat through the sealing belt to the sealing part of the bag, so that the film is hot melted soft, and then through the cooling area, so that the film surface temperature appropriately drops, and then through the roller (or printing wheel) rolling, so that the seal part of the plastic film glue Then by the guide rubber belt and conveyor belt will be sealed bags out of the machine, to complete the sealing work
In recent years, with the rapid development of food, medicine and other industries, automatic sealing machine also ushered in a broad market, the size of the industry market continues to expand And in the fierce competition, automatic sealing machine manufacturers continue to innovate and upgrade products, to create a more compact structure, more beautiful appearance, with a seal beautiful and solid, high efficiency, simple operation, easy maintenance and other characteristics of equipment, for customer development to bring economic benefits However, users still can't avoid some common failures in the process of using the device
Unsealing is one of the common failures of automatic sealing machine, the main reason for the failure is three aspects One reason is that the seal of the bag can not be sealed, caused by the heat seal temperature is not enough, the heat seal speed is too fast, the pressure of the cold press rubber wheel is not suitable, the heat seal film quality problems and other factors
"The seal does not also relate to the quality of the hot seal film, if the composite material corona treatment is not uniform, the effect is not good, and happens to appear at the seal, certainly can not seal." This is rare, but once it occurs, the product must be scrapped Therefore, the discovery of quality problems need to be analyzed and resolved in a timely manner If there is moisture and dirt in the seal, it will also cause the seal to be insecure "The industry says so
For this fault situation, the solution mainly includes: appropriately increase the heat seal temperature, and then reduce the heat seal speed, while increasing the pressure of the cold press rubber wheel
The second reason is under the pressure of the sealing knife, although the bag seal is sealed, but a little force squeeze or tear, the seal will crack again This situation is related to the heat seal temperature is not enough, the knife surface of the hot seal knife is not flat enough, for the former can be appropriately raised the heat seal temperature can solve the problem The main reason for the latter is that the middle screw is skewed, or the pressure spring pressure of the upper heat sealer is uneven Just make the appropriate adjustments
The reason is three is the seal ingress test, there is a half sealing solid, half separation phenomenon, such a packaging bag seal quality is still not qualified, because the contents in the storage and transportation process by squeezing is easy to miss
Response to the temperature gauge display failure It is understood that the fault is also fatal for the fully automatic sealing machine Once the temperature gauge fails, can not control the temperature, it will cause the heat seal temperature is not constant, the seal often appears burning or sealing phenomenon In this regard, the industry recommends that users check the thermometer or replace, readjust the heat seal pressure, replace the hot seal material
Sealing machine walk stop for the sealer unstable operation of the situation, need to check the motor shaft link connection and transmission connection whether there is shedding or relaxation phenomenon, if the inspection of the motor's carbon brush wear, there are these phenomena, need to tighten replacement
In addition to the need to understand and master these three common faults and corresponding solutions, users also need to pay attention to maintenance and maintenance during the shutdown of equipment, in order to make the equipment maintain a longer life, to ensure stable production operation.