Abstract: As a new type of conveying machinery, pneumatic diaphragm pump is one of the newer kinds of pumps in the world. This paper briefly introduces its working principle and characteristics, and summarizes the advantages and benefits of replacing it with gear pump.
[Key words] Pneumatic diaphragm pump YJ24 then installed for the gum system gear pump
YJ24 then installed to receive YJ15 cigarette machine rolled cigarettes, relying on their own supply of filter rods, tipping paper supply and glue system will be made of non-smoking cigarette filter cigarettes. As an important system, the main function of the glue supply system is to continually apply glue to the side of the tipping paper as needed to prepare for the tipping and rubbing of the tobacco branch.
First, the existing problems
YJ24 Tacking Machine The original rubber supply system consists of a plastic motor driven gear pump (2) for glueing the glue applicator (3) from the large capacity plastic bucket (1), as shown in Figure 1:
figure 1
Gear pump machining and assembly requirements of high precision, and cleaning gear pump parts must be disassembled one by one, so that not only time-consuming and labor-intensive, and easy to wear due to assembly caused by leakage, resulting in gear pump glue Bubbles caused by the cigarette branch is not installed, shut down and other production failures.
Second, improve measures
Pneumatic diaphragm pump is a new type of conveying machinery, is currently a relatively new type of pump in the world. The pump uses compressed air as the power source, through the two symmetrical working chamber diaphragm synchronous reciprocating motion and one-way ball valve to change the volume of the working chamber, thus the liquid is continuously inhaled and discharged. The unit of time for the amount of plastic and external compressed air pressure, pressure, then the amount of plastic large, otherwise small. Pneumatic diaphragm pump for conveying a variety of corrosive liquids, with particles of liquid and high viscosity, volatile, flammable, highly toxic liquid.
In the original YJ24 machine installed glue system with pneumatic diaphragm pump instead of gear pump, pneumatic diaphragm pump outlet at the addition of a throttle valve, so that both the pneumatic diaphragm pump during operation, continuous supply of plastic, and The amount of glue can be controlled.
figure 2
Figure 2 is a schematic diagram of a modified pneumatic diaphragm pump, in which the pneumatic diaphragm pump (4) is driven by compressed air inserted in the gas pipe (6) above it to pump the glue supply from the glue tank (1) Gluing device (3).
Third, the use of effects and advantages
Pneumatic diaphragm pump used in the YJ24 then installed on the machine, replacing the original rubber gear pump, and canceled the original gear pump drive motor to meet the demand for plastic, to achieve the function of the plastic system, while simplifying the structure and reduce the energy Consumption
Pneumatic diaphragm pump mainly has the following advantages:
1. Simple structure, less wearing parts. Two classes a day, only need to be replaced once a year pneumatic diaphragm.
2. Easy to install. The pump is small, light weight, can be installed directly in the original gear pump position.
3. Control is simple and reliable, easy to maintain.
4. The pump without oil. Even idling, the pump has no effect.
5. Usually do not have to clean. If a long time (such as 10 days or more) downtime, you need to clean the pump body excess glue to prevent glue solidification. Cleaning can be directly into the water pump into the compressed air cleaning.
Fourth, the application prospects
At present, the pneumatic diaphragm pump has been successfully applied to the YJ24 connecting machine of the ZJ15XG type crimping machine. The pump can also be applied to MOLINS series connecting machines (such as PA85, PASSIM etc.) and HAUNI series connecting machines (such as MAX-S, PROTOS, etc.) ), Has a good application prospects.
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