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Cotton Roll Pressing Mechanism of Carding Machine

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

In order to wind the collars too tightly, in order to increase the ease of handling and storage, some pressure is applied during the winding process from the cotton lap. Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process.

The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process). 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. At both ends of the general brake mechanism of the compressing member of the winding lap roller, as shown in Figure 1-29.

The diameter of the collar gradually increases with the winding process and the pressure forces the hook to overlap the grain. During the ascent, the hook is pressed through the braking action amplified by the friction resistance gear train, making the lap circular weaving cycle to obtain a large squeezing force, thus creating a pressure seal between the lap and the lap roller When the card is pressed, the size of the braking force is determined in addition to the size, but also the relative position between the lap roller and the lap. If some other minor frictional resistances are omitted, the longitudinal development resistance of the window shaft and the pressure between the lap and the lap roller company can be simply obtained through comparative analysis.

According to the short force balance of different brake levers, the economic conditions can be obtained: the pressure of the cotton roller on the brocade roller can be approximately regarded as equal to the longitudinal force of the two hooks 2P (in fact, it should also include the lateral force of the hook and the hook and the weight of the cotton roll itself). According to the balanced development conditions of the force analysis of the cotton lap, it is not difficult to calculate the pressure Q between the cotton lap and the brocade roll pressing roller as follows. From the above formula, it can be seen that Q is the diameter of the pressure change circle d. When the winding process starts, D=I, and the pressure has the greatest influence. After F, it can gradually decrease with the increase of the diameter of the cotton lap, approaching its extreme value P.

After determining the appropriate pressure Q according to the claimed method, it can be analyzed according to equation (1-32) and the calculated brake in the winding mechanism has a fertile size (1-33). The crimping hook is subjected to four forces, A, B, C, and P, as shown in Figure 1-31. Here we first explain and study the C force 2 pressure hook in the lifting work process, the feeding force of the gear and the A and B forces acting on the two rollers of the pressure hook head can not develop and have not maintained a balance, so the selection of small The opposite suit of gear 6 has a roller to maintain the balance of the pressure hook. The c force represents the total lateral force of the lower part of the pressure hook.

In general, the section of the crimping hook head is much larger than the rod, so the cross-section data for the hazard can itself be considered as the section at the junction of the head and the rod. During the working day of the carding machine, when the brake fails and the pressure hook rises, the resistance increases sharply. In order to avoid damage to the card components caused by the increased pressure of the carding coil, a safety device is therefore installed in front of the pressure hook drive pinion in the transmission from the brake wheel to the pressure hook.

Connect the filter cake with friction plates such as l to 1-32 on the a076a card. The friction torque between gear 4 and pinion 5 on the lift shaft (see Figure 1) is driven by the friction torque of the inner friction lining of the friction lining coupling. The friction torque is determined by the spring pressure and can be adjusted appropriately.

When the pressure of the coil increases, the torque between the friction plates exceeds the allowable value, and the friction plates can be relatively eliminated, playing a role of safety buffer. Calculate the spring according to the maximum allowable overload torque.


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