Bag filling and packaging method and bag filling and packaging apparatus

Abstract

A bag mouth correcting device is disposed between a deaeration station and a sealing station. The correcting device has a pair of bar-shaped guide members. The guide members extend in the direction of movement of a bag, and an expected sealing area of the bag passes between the guide members. The guide members are disposed at a height position corresponding to the expected sealing area. The guide members extend gradually upward and the space therebetween gradually decreases as the distance from the upstream side increases toward the downstream side in the direction of movement of the bag. While passing between the guide members, the tilted bag mouth is corrected to a substantially uncurled state.

Description

technical field [0001] The invention of the present application relates to a bagging and packaging method and device. More specifically, it relates to the following bagging and packaging method and device: in the bagging and packaging method and device, a plurality of sets of left and right clamps for clamping the left and right edges of the bag are arranged at equal intervals, While holding the bag in the upward hanging state, the bag is intermittently or continuously transferred sequentially along the prescribed plane track, and at the same time, prescribed packaging processes such as opening of the bag opening, filling of the packaged object, steam degassing, and sealing of the bag mouth are carried out. . Background technique [0002] When bagging and packaging food, etc., steam displacement degassing is sometimes performed by replacing the air in the bag with steam after filling the packaged object. For example, Japanese Patent Application Laid-Open No. 9-95311 disclo...

AI Technical Summary

Problems solved by technology

If the part to be sealed at the mouth of the bag is sealed in this state, the part to be sealed will be bent or wrinkled, resulting in poor appearance, or even a cause of poor sealing.

[0004] In the past, in order to deal with such problems, sealing was performed on the lower side of the curled part, but there were problems such as poor appearance of the product due to the unsealed edge of the bag opening, and dust entering the edge of the bag opening that was not tightly adhered. , so it is not preferred

In addition, there are cases where seal strength problems arise due to narrowing of the seal width

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