CN103895916A - Detection alarm method for out of operation of air passage of air cushion bag discharging machine - Google Patents

Abstract

The invention relates to a method for detecting and alarming the airway failure of an air cushion packing machine. The air cushion packing machine includes a plurality of high-altitude conveying channels and air channels, and the high-altitude conveying channels are connected to the air channels in one-to-one correspondence. In addition, the air cushion packing machine It also includes a photoelectric sensor, a PLC control system and an audible and visual alarm. The photoelectric sensor is arranged in the mounting hole on the side of the airway. The photoelectric sensor is electrically connected to the PLC control system. The PLC control system is electrically connected to the audible and visual alarm. Connection; the PLC control system executes the following procedures to detect and alarm: judge whether the smoke is the first smoke in the airway, and when it is the first smoke, it is allowed to freely fall through the photoelectric sensor, not the first smoke When smoking, when a piece of smoke passes through the photoelectric sensor for less than 0.3s, it is judged that the airway is invalid, and an audible alarm is given to remind the maintenance personnel to adjust the airway. The structure of the invention is simple and easy to use.

Description

A detection and alarm method for airway failure of air cushion charter machine

technical field

The invention relates to the relevant technical field of tobacco production, in particular to a method for detecting and alarming the air passage failure of an air cushion packing machine.

Background technique

The air passage of the air cushion chartering machine may fail in actual operation. Once the air passage fails, the cigarettes will be in a state of free fall, which will have a serious impact on the quality of the cigarettes. In the design of the current air cushion type packing machine, whether the air passage is invalid is judged by human senses, and there is a lag. When the air passage is found to be invalid, the unqualified cigarettes have already flowed into the finished product warehouse. And in the actual production and operation process, it is not very realistic to arrange personnel to observe whether the airway is invalid for a long time, and different operators have subjective and inconsistent judgments on whether the airway is invalid. Therefore, the airway of the charter machine must be It has the function of detection and alarm when the airway fails.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide a method for detecting and alarming the failure of the airway of the air cushion packing machine. The method has a simple structure, convenient and effective implementation, and can achieve good cooperation with the rod cigarette conveying system.

In order to achieve the above object, the present invention adopts the following technical solutions:

A method for detecting and alarming airway failure of an air cushion packing machine. The air cushion packing machine includes a plurality of high-altitude conveying channels and air channels, and the high-altitude conveying channels are connected to the air channels in one-to-one correspondence. It also includes a photoelectric sensor, a PLC control system and an audible and visual alarm. The sensitivity of the photoelectric sensor is selected at the level of 0.1s, and the response time of the PLC control system is milliseconds. The photoelectric sensor is arranged in the mounting hole on the side of the airway. The sensor is electrically connected to the PLC control system, and the PLC control system is electrically connected to the sound and light alarm; the PLC control system executes the following procedures to detect and alarm: determine whether the cigarette is the gas The first smoke in the road, when it is the first smoke, it is allowed to pass the photoelectric sensor in free fall. If the airway fails, an audible alarm will be issued to remind the maintenance personnel to adjust the airway.

As a further improvement, the photoelectric sensor is installed on the side of the airway at a height of 1.6-1.8m from the ground.

The upstream of the air-cushion type packing machine of the present invention is connected to the cigarette conveying from the packaging machine, and the downstream is connected to the case sealing machine, and one air channel corresponds to one cigarette conveyor belt. A photoelectric sensor is installed on the side of the airway to connect with a PLC control system. When the photoelectric sensor detects that the falling speed of a cigarette is too fast, the PLC control system judges whether it is the first cigarette in the airway. If not, connect The acousto-optic alarm light in the PLC control system gives an audible and visual alarm, that is, the airway fails. The device of the present invention provides the simplest and most effective detection and alarm for the failure of the air passage of the air cushion packing machine, realizes good cooperation with the rod cigarette conveying system, and has the characteristics of simple structure and convenient use.

Description of drawings

Fig. 1 is a structural schematic diagram of the device of the present invention.

Fig. 2 is the flowchart of the PLC control system of the present invention.

Detailed ways

The following is a detailed description of a method for detecting and alarming the airway failure of an air cushion packing machine according to the present invention in conjunction with the accompanying drawings.

As shown in Figure 1, a method for detecting and alarming the airway failure of an air cushion packing machine, the air cushion packing machine includes a high-altitude conveying channel 1, an air channel 2, a photoelectric sensor 3, a PLC control system 5, an audible and visual alarm 6, and a high-altitude conveying The channel 1 is connected to the air channel 2 in one-to-one correspondence, and the photoelectric sensor 3 is installed on the side of the air channel at a height of 1.7m, and the photoelectric sensor 3 is electrically connected to the PLC control system 5. Connection, the PLC control system 5 is electrically connected with the sound and light alarm 6.

The photoelectric sensor 3 of the present invention is installed on the side of the air passage 2 with a height above the ground of about 1.7m. The width of a cigarette is about 0.09m. s. When the airway 2 is completely ineffective, the time for the smoke to pass through the photoelectric sensor 3 is about 0.01 s. The sensitivity of the photoelectric sensor 3 is selected at the level of 0.1s, and the response time of the PLC control system 5 is at the millisecond level, which meets the design requirements of the detection and alarm device. Since each cigarette factory has different product quality requirements, after the actual operation test, it is more reasonable to set the time to 0.3s.

As shown in Figure 2, during normal operation, the PLC control system 5 judges whether the cigarette is the first cigarette in the air passage 2, and when it is the first cigarette, it is allowed to freely fall through the photoelectric sensor 3, without When it is the first cigarette, when the time when a cigarette passes through the photoelectric sensor 3 is less than 0.3s (set value), it is judged that the airway 2 is invalid, and an audible alarm is given to remind the maintenance personnel to adjust the airway 2 .

Claims (2)

1. the detection alarm method that air cushion packing machine air flue lost efficacy, described air cushion packing machine comprises many high-altitude transfer passages (1), air flue (2), high-altitude transfer passage (1) and described air flue (2) corresponding being connected one by one, its spy is being: this air cushion packing machine also comprises opto-electronic pickup (3), PLC control system (5) and combined aural and visual alarm (6), the sensitivity of opto-electronic pickup (3) is selected 0.1s rank, the response time of PLC control system (5) is Millisecond, described opto-electronic pickup (3) is arranged in the mounting hole of air flue (2) side, opto-electronic pickup (3) is electrically connected with described PLC control system (5), PLC control system (5) is electrically connected with described combined aural and visual alarm (6), described PLC control system (5) is carried out following program and is carried out detection alarm: judge whether the bar cigarette getting off is the Article 1 cigarette in this air flue (2), during for Article 1 cigarette, allow the process opto-electronic pickup (3) of free fall type, while being not Article 1 cigarette, in the time occurring that bar cigarette is less than 0.3s through the time of this opto-electronic pickup (3), be judged as this air flue (2) and lost efficacy, carry out audible alarm, remind maintainer to adjust air flue.

2. according to the detection alarm method of asking profit to require a kind of air cushion packing machine air flue described in 1 to lose efficacy, its spy is being: opto-electronic pickup (3) is installed on air flue (2) side of terrain clearance at 1.6-1.8m.

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