Three edge-sealing bag making machine in use process will appear many problems, in the process of using to learn through these problems to master the use of the machine, the machine can use time longer, and we believe that in the process of use, you must have met these questions, then by the small make up take you learn about these problems together.

1. Problem 1: Warping of bags caused by hot sealing of three-side bag making machine, causes and solutions:

Causes of heat sealing:

(1) The thickness of the composite film is not consistent

(2) The heat sealing temperature is too high or the heat sealing time is too long

(3) In the longitudinal hot sealing part, the running track of the composite film is not straight

(4) Insufficient cooling

(5) Insufficient curing time

(6) The heat resistance of the surface substrate film is poor

(7) Improper tension matching control of composite substrate in the composite process leads to residual stress after curing and shaping, especially when the composite film thickness is relatively thin

Countermeasures taken:

(1) Adjust the tension of floating stick

(2) Select the internal sealing substrate with low temperature heat sealing property

(3) Adjust the hot air temperature to the appropriate temperature

(4) Cool thoroughly

(5) Fully mature

(6) Re-select the surface substrate film

(7) Adjust the tension of each part of the compound processing equipment to make the shrinkage ratio of the two kinds of compound base materials equal as far as possible

2. The most common problem of three-sided bag making machine in the process of manufacturing three-sided bag sealing is that the bag making machine seals are brittle and broken. This situation is particularly annoying.

1. The reason:

(1) The heat sealing temperature is too high

(2) Excessive pressure

(3) Too long heat sealing time

(4) The edge of the mouthpiece on the bag-making machine is too sharp or the covered PTFE is damaged

(5) The silicone rubber sealing at the bottom of the bag making machine is excellent

(6) In the process of compound and curing, part of the adhesive into the film. The toughness (impact resistance) decreased and brittleness increased due to the penetration of adhesive

(7) After the plastic composite packaging bags are cooled and placed, the strength of the hot sealing increases somewhat and also tends to become brittle

Countermeasures:

(1) Select the appropriate processing temperature, pressure and heat sealing time according to the heat sealing characteristics of the materials in the inner sealing layer

(2) To improve the surface state of the hot sealing knife on the bag-making machine and make the surface of the mouthpiece smooth

(3) Wrapped in teflon cloth

(4) Select silicone rubber pad with appropriate hardness

Ruian Zhoutai Packaging Machinery Co., LTD specializes in manufacturing three-sided bag sealing machine, more related products please pay attention to the official website www.raztjx.com