Cigarette machine induced-draft pipe with adjustable draft velocity

Abstract

The cigarette machine induced-draft pipe with adjustable draft velocity includes draft pipe, flange, flowmeter and regulating throttle. The flowmeter and the regulating throttle are connected serially in the draft pipeline and are orifice flow meter and electric or hydraulic butterfly valve separately for automatic control via computer. After the present invention is installed, the computer calculates the real-time wine rate and compares it with the set value to output corresponding signal for fast regulation of the valve and stable wind rate may be obtained.

Description

Technical field: [0001] The invention relates to a suction pipe used in a cigarette factory, in particular to a suction pipe connected with a wire collection box of a pneumatic wire distribution cigarette machine, belonging to the field of cigarette manufacturing machinery. Background technique: [0002] Pneumatic shredded cigarette machine has been widely used by domestic and foreign cigarette manufacturers because of its high degree of automation, large output and stable and reliable operation. The shredded tobacco of the wire feeding machine is sucked into the wire collecting box of the cigarette maker and then automatically taken out for rolling. Due to the large number of cigarette making machines, it is impossible to configure the fan and the dust collector separately. The usual configuration is to use a main pipe to connect the dust collector and the fan. There are many branch pipes on the main pipe, which are respectively connected to the suction ports of the smoke c...

AI Technical Summary

Problems solved by technology

[0002] Pneumatic shredded cigarette machine has been widely used by domestic and foreign cigarette manufacturers because of its high degree of automation, large output and stable and reliable operation. The shredded tobacco of the wire feeding machine is sucked into the wire collecting box of the cigarette maker and then automatically taken out for rolling. Due to the large number of cigarette making machines, it is impossible to configure the fan and the dust collector separately. The usual configuration is to use a main pipe to connect the dust collector and the fan. There are many branch pipes on the main pipe, which are respectively connected to the suction ports of the smoke collection boxes of each cigarette machine through flanges. However, these branch pipes are just ordinary air pipes and lack the ability to adjust the wind speed. The installation position of the cigarette machine is different, and the branch pipes connected with the main pipe are different in length and short, so that the resistance of the branch pipes to the wind speed is different, which will inevitably cause the wind speed of the suction port of each cigarette machine in the pipe network to be different. The wind speed of the main valve is no longer possible to solve the problem of inconsistent wind speed in the pipe network

And because each cigarette machine works or shuts down according to the production needs, even the cigarette machines that work normally on the production line need to switch frequently between the state of silk feeding and the state of suspending silk feeding, so that the air volume of the main pipe is always in a fluctuating state. The difference in wind speed at the air inlet of the wire collecting box that needs to be fed is even greater. Therefore, the existing pipe network obviously has the problem of unstable and inconsistent wind speed that is difficult to overcome, causing the wind speed in the branch pipes of the pipe network to even reach 50%. difference

Because the change of wind speed will directly affect the quality of cigarettes, for the branch pipe with too low wind speed, the cigarette machine will break the material and affect the production output; The crushing rate of shredded tobacco can be as high as 8%, and the increase of the crushing rate will seriously affect the quality of finished cigarettes

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