Longitudinal seal traction and heat sealing device

Abstract

The invention discloses a longitudinal seal traction and heat sealing device and relates to the field of packaging. The longitudinal seal traction and heat sealing device comprises a longitudinal seal ironing block mechanism, an upper traction component and a lower traction component, and the upper traction component and the lower traction component are positioned at the upper position and the lower position of the longitudinal sealing ironing block mechanism correspondingly. The longitudinal sealing ironing block mechanism is configured to heat a rolled film. The upper traction component is configured to perform traction on the rolled film before heating, and the lower traction component is configured to perform traction on the rolled film after heating. According to the longitudinal seal traction and heat sealing device, traction mechanisms are adopted for traction of a strip package longitudinal seal, the traction mechanisms are arranged up and down, traction is carried out before and after heating of the longitudinal seal, and rolled film stretching caused by direct traction after heating is reduced. Meanwhile, through staggered arrangement of rollers, the problem of small bag wide longitudinal seal roller arrangement is solved.

Description

technical field [0001] The invention relates to the field of packaging, in particular to a longitudinal sealing traction and heat sealing device. Background technique [0002] At present, for multi-row strip packaging equipment, the longitudinal sealing block is mostly heated on one side. Even if it is heated on both sides, for the equipment with small bag width, the existing published patents cannot realize the miniaturized arrangement of longitudinal sealing, and the mechanism is complicated and difficult to adjust. The traditional packaging machine basically adopts the method of vacuum adsorption to transport the roll film downwards, which cannot realize the continuous longitudinal sealing and pulling of the film. At the same time, the traction of existing multi-row strip equipment mostly adopts horizontal traction, which cannot realize continuous traction for longitudinal sealing, and the film traction speed is relatively slow. The running speed of the multi-column stri...

AI Technical Summary

Problems solved by technology

[0002] At present, for multi-row strip packaging equipment, the longitudinal sealing block is mostly heated on one side. Even if it is heated on both sides, for the equipment with a small bag width, the existing patents cannot realize the miniaturized arrangement of the longitudinal sealing, and the mechanism is complicated and difficult to adjust.

The traditional packaging machine basically adopts the method of vacuum adsorption to convey the roll film downwards, which cannot realize continuous longitudinal sealing and pulling of the film

At the same time, the traction of the existing multi-row strip equipment mostly adopts horizontal traction, which cannot realize continuous traction for longitudinal sealing, and the film traction speed is relatively slow

The running speed of the multi-row strip bag equipment is slow, and the longitudinal sealing and continuous traction cannot be realized. The longitudinal sealing and ironing block is large in size and complex in structure, which is not suitable for the small bag wide model.

Images