How to make a layout improvement by tightly spinning the top roller equipment

Source: China Bearing Network Time: 2013-10-25

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

According to the statistical data of 40 combed cotton yarns in the 2001 Uster Bulletin data, the 5% level of ring spinning and the 95% level of strict spinning are appropriate; the advantage of tight spinning yarn is very significant. China's strict spinning has become an important factor in the pursuit of the textile industry; many well-known people in the textile industry also believe that strict spinning instead of ring spinning is an inevitable trend of the textile industry. Jingwei Co., Ltd. and SUESSEN Company have reached a strict textile cooperation agreement; The development of strict spinning localization. The following is an analysis of the experience of the development of SUESSEN's Elite tight spinning equipment to form the top roller components;
Improvement of component layout The tightly-spun upper roller component is one of the finest components in the complete set of rigid spinning equipment; the precision requirements of each component are extremely high. The tightly-spun upper roller component is fixedly connected by two upper and lower casings. Drafting on Rolla Pos. 1, Pos. 2 and gear transmission organization; top roller Pos. 2 by the top roller Pos. 1 Rotating by gear drive. The roller part has been improved in the following aspects:
Firstly, the joint housing A is changed from the original one to the upper and lower housings; the original open type is improved to the sealed type. First, the gear transmission pair is sealed in the whole; the gear sanitary protection operation is lightened, and the second is direct With the positioning ring B on the shaft, the gear constitutes a labyrinth seal; instead of the seal inside the bearing; advances the sealing function of the bearing. Secondly; Pos. 2 The outer diameter of the top roller is much larger than before the improvement; it can completely conceal the suction of the shaped tube; it is beneficial to ensure the accumulation of the yarn through the suction port. Third, the gear transmission pair consists of two transmission gears and a bridge gear. The gears were originally equal. Refers to the æ¹® æ¹® è‹ è‹ Zheng ç° æ½œ ã¡ Vã¡Pos. 2 The draw ratio after the diameter of the rubber roller is increased; the second is to extend the service life of the gear. Fourth; the rubber roller in the tightly-spinning upper roller component is selected from the aluminum bushing surface without disposing the rubber roller; The roughness is increased by convention; and the roughness of the surface roughness is significantly advanced.
The misunderstanding of the bearing clearance The top roller bearing clearance is the focus of the spinning mill and the spinning machine manufacturer. Most domestic spinning mills generally believe that the top roller bearing clearance is the main factor affecting the unevenness of the yarn and the mechanical wave. The reason; especially the spinning mill's cyanide rubber roller production is an important target for judging the bearing quality. Therefore, some bearing manufacturers use this to induce the spinning mill to blindly think that there is a small clearance or even a topless roller. Bearings are a good quality misconception.
The rubber roller in the tightly-spinning upper roller part is made of aluminum bushing, and the outer surface of the rubber roller is not disposed; in the case of the pressure sleeve, although it is called no sleeve difference, the practice is to ensure the bonding force between the rubber roller and the outer ring of the bearing; 0. 03 mm ~ 0. 06 mm set difference. Bearing outer ring wall is very. Hit the ç•¹ ç•¹ å¬–è¯’åŽ è´¾ è´¾ è´¾ å›º å›º å›º å›º è¯³ è¯³ è¯³ è¯³ è¯³ è¯³ æ¹« æ¹« æ¹« æ¹« æ¹« â‰ˆå²¢ â‰ˆå²¢ æ·¼ æ·¼ æ·¼ æ·¼ æ·¼ æ·¼ æ·¼ æ·¼If the bearing itself forms a small clearance or even no clearance bearing; after the rubber sleeve roller will inevitably form a bearing transition is not sensitive or stuck can not be converted; affect the level of the strip; form waste.
For this problem; we have repeatedly made random sampling and selection of pressure matching experiments; verify the clearance shortening; the conclusion is that the bearing radial clearance is reduced to 0. 006 mm; that is, the bearing transformation is not sensitive, the bearing outer ring The diameter of the hole raceway is maximally reduced by 0. 006 mm. Therefore, the normal operation of the bearing is ensured; the radial clearance is not less than 0.006 mm. The radial clearance of 0.006 mm has a significant feel. Further proof that the basis for the determination of no-feeling is unreasonable.
The lifelong smooth bearing protection of the bearing is a difficult problem for the textile company. The leather roller room is cleaned and refueled every time from the beginning; the process is messy; especially the final finishing is very troublesome; if it is not finished, it will be yarn when spinning. Sticky; affects the quality of the yarn and easily damages the bearing.
The Elite tight-spinning top roller equipment manufactured by JW-SUESSEN has a protection-free function. The protection-free function eliminates the problem of protection and protection of the bearings, such as refueling and cleaning. This device's protection-free method ensures long-lasting effect on the sealing layout. The reliability of hygienic use; more importantly, the selection of life-smooth grease. JW-SUESSEN's special life-smooth grease added to the top roller bearing can be extended to 60,000 operating hours; basically the top roller Bearings are protected for life.
Feasibility of localization The import of strict spinning system is expensive; the domestic textile profession is full of strict spinning skills; the quality of China's yarn is undoubtedly a great hindrance. China's strict spinning can attract local equipment. What about the road?
In the practice of trial-manufacturing strict spinning of the roller equipment, our company calculated the price of the localized set of equipment for about 120 yuan; compared with the price of the original imported tight spinning drafting roller equipment; the cost decreased significantly. Skills about domestic producers are already a sophisticated skill; thoroughly satisfied with the demand for strict spinning. Therefore; strict spinning equipment should take the road of localization; significantly reduce the cost; speed up the skills of strict spinning; advance the advancement of China's textile profession .

Recommend to friends comments close window

Bearing related knowledge

The correct application of the bearing in the fine grinding of the external grinding traces
Analysis of the Advantages and Defects of NSK Rolling Bearings
The influence of KOYO bearing cage data on bearing operation, bearing application and data requirements

This article links to http://
Please indicate the bearing network http://

Previous:High-function CNC machine tools and electric spindle unit Next: How to judge the quality of KOYO bearings

Wash Wall Light

Wall washing lamp, as the name implies, lets the light wash the wall like water to outline the outline of large buildings.

LED is widely used because of its energy-saving, high luminous efficiency, rich colors, long life and other characteristics.

Wash Wall Light,Wash Wall Lamp,Wash Wall,Wall Washing Lamp

JINGYING , https://www.jingyinglight.com