Bag detection device of packaging machine

Abstract

The invention discloses a bag detection device of a packaging machine, and belongs to the technical field of packaging equipment. The bag detection device comprises a blowing pipe, one end of the blowing pipe is provided with two blowing ports, and the two blowing ports are symmetrically arranged on the side walls of the blowing pipe. The bag detection device further comprises air detection mechanisms, each air detection mechanism comprises an electric heating plate and a temperature sensor, each electric heating plate comprises a substrate and electric heating wires, a partition plate is arranged between each electric heating plate and the corresponding blowing port, ventilation openings are formed in the portion, corresponding to the corresponding blowing port, of each partition plate, afixing plate is arranged on the side, far away from the corresponding blowing port, of each electric heating plate, the bottom of each fixing plate and the bottom of the corresponding partition plateare connected through a connecting plate, each electric heating plate is fixed to the corresponding connecting plate, the electric heating wires are arranged on the side, facing the corresponding partition plate, of each substrate, and a probe of each temperature sensor directly faces the corresponding electric heating wires.

Description

technical field [0001] The invention belongs to the technical field of packaging equipment, and in particular relates to a bag measuring device of a packaging machine. Background technique [0002] The bag measuring device of the packaging machine is a device to detect whether the packaging bag has been fed in. When the packaging bag is fed in normally, the subsequent process will proceed normally. If the packaging bag is not fed in and the subsequent process continues, it will cause abnormal Therefore, when no packaging bag is detected, the bag measuring device stops the subsequent process. In the prior art, the cylinder swing arm structure is generally used, which has large volume, complicated processing and inconvenient installation. shortcoming. [0003] The invention patent with application publication number CN 104326124A proposes a bag testing device for a packaging machine. The testing device includes a blowing pipe. There is an induction switch on the other side o...

AI Technical Summary

Problems solved by technology

In this bag measuring device, whether the subsequent process is carried out normally is judged by the sensor switch sensing whether the detection board is swinging. In addition to the airflow blown out from the blower port, other external forces, such as frame vibration, will also cause the detection board to swing. Plate wobbles, causing inaccurate sensing

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