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Determination of air flow in the roller part of the carding machine

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

1. Experimental purpose 1. To measure the static pressure distribution around the licker-in. The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit. Grinder A spinning machine that turns fiber strands into rovings.

The main function is to draft and twist, and to wind the roving into a certain package to meet the processing requirements of the spinning frame. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.

2. Understand the effect of surrounding noil and clean licker-in belly airflow. 2. Basic knowledge The licker-in part of the carding machine is responsible for opening and the main task of removing impurities. After the fed cotton layer is opened by the licker-in, most of the fibers are oxidized and decomposed into a single-cell fiber development state, and 50% -80% of the dust in the cotton lap is eliminated.

When the operating card, the high-speed rotating punching roller, is driven by the flow of air around the licker-in, the batt is strongly zigzag combing the fibers and mixing the fibers to obtain contact between the fibers and dust for release. Under the action of machinery and airflow, the fibers are separated from the impurities, the fibers are grabbed, and the dust is expelled into the noil heteroaryl (ie, after the noil belly). Lick-in speed, dusting knives and related technologies are the small ends of this airflow leakage correlation.

Therefore, only to know the laws of airflow, in order to better adjust the process, control the flow and the noil part of the licker-in, stable production, reasonable cleaning, to ensure the quality of the product and the purpose of saving cotton. In this experiment, the micro pressure instrument can be used to measure the learning pressure of the small leak bottom part and the licker-in cover, observe and analyze the main distribution and development law of the pressure, so as to further improve the understanding of the small leak bottom part and the licker-in cover part. Significance of enterprises adopting suction and air release devices. 3. Experimental equipment and appliances 1 set of carding machine, 1 set of special small leak bottom with welded pipe, 1 set of roller cover shell, 1 set of compensation micro-pressure instrument, and several latex tubes.

4. Experimental meat kiln 1. Start the test carding machine, and feed cotton for 5 minutes after stopping. 2. Clean the belly of the rear car. 3. Disconnect the feed roller drive so that the lap supply roller is at the bottom.

and reel gap to seal off the puncture point, as well as outside air for separation. 4. Disconnect the cover drive. 5. Measure the pressure at each point.

There is no compensation function micro-pressure gauge placed on the test table near the carding machine. One end of the hose is connected to the dynamic pressure nozzle of the micro-pressure gauge, and the other end passes through the first, second, third, and second small leaks in turn. 4 Connect the left, middle, and right test points at the gauge point and the left, middle, and right test points of the licker-in cover (inlet, middle, and outlet), and measure the pressure at each point. Measured by the above method is the first pulley 6. Repeat after exchanging the licker-in, and the licker-in reel changes speed. 7. Fill in the measured data information in Table 2-4 and Table 2-5. Take the average value of each measurement point.

8. Draw the static pressure distribution curve.


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