Bearing roca, mechanical drawing roller compact spinning method improvement

Bearing roca, mechanical drawing roller compact spinning 2018 - method of improvement 10 - 13 zhi-gang xue ( Shandong guan crown star textile co. , LTD. ) Abstract: in order to improve the roca, mechanical efficiency of compact spinning yarn guide roller bearing and the percent of pass, the new design bearing roca, mechanical specialized of compact spinning yarn guide roller shaft. After pointed out that improving design, using the guide shaft to improve production efficiency, the labor intensity is reduced, bearing rate increase. Keywords: roca, doffing roller; Lead axis; Processing one, the introduction my company's existing roca, mechanical compact spinning more than 100000 pounds by roca, mechanical, compact spinning yarn guide roller bearing outside diameter is small, only 13 ㎜, so form a complete set of aluminum liner roller diameter specifications for 13 ㎜, rubber roller diameter of 20. 5 ㎜ and ordinary aluminum liner roller diameter of 19 ㎜. Due to the rubber roller diameter is too small, please auxiliaries professional manufacturers, according to roca, doffing roller lining rubber roller bearing and aluminum material, give modification and production drawing aluminum liner roller sets of sealing and bearing of the mold. Second, after more than 10 days of waiting, auxiliaries professional manufacturers to send back to the drawing of aluminum liner roller sets of sealing and bearing mold. Auxiliary machinery manufacturer with the method of the positioning, specific operation method is: ( 1) First remove the roller bearings on both ends of the different colors of cap. （ 2) To guide the cylindrical shaft and match the aluminum liner roller, put a diameter of 11 mm out drawing roller bearings with inner hole; （ 3) Complete the bearing rod sets slowly decline; （ 4) Put different colors of cover cap on both ends. Guide shaft dimensions as shown in figure ( 1) 。 There are the following drawbacks: (with this operating mode 1) Again and again to get rid of roller and cover cap, increase the workload of workers; （ 2) When remove sealing cap bearing of aluminum into the bearing internal extremely easily, bearing rotation is not flexible; （ 3) Bearing and bearing qualified rate is low work efficiency, bearing 72 rubber roller, need an hour, and there are 3 - 4 rubber hose for eccentric center position is not accurate and even scrapped. After repeated contact with auxiliary specialized manufacturers, factory said there was no better way of bearing, can only use their mould bearing slowly. We need large quantities of technical transformation of roca, drafting and drawing roller, not because of the roller on the workshop production supply, caused by passive production. To solve the technical problem, I think repeatedly adopt the method of positioning on bearing, like 19 mm aluminium lining rubber roller bearing diameter, neither repeatedly to remove and roller seal cap on both ends of the cover, the work efficiency and qualified rate of bearing and 19 mm diameter aluminum liner roller. After repeated brewing and conception, the preliminary draw the sketch of new bearing guide shaft, and a bearing in the company overhaul shop trial production with guide post, back to try and achieve the desired purpose, can fully meet the needs of normal production. Operation staff can complete every 1008 bearing roller production task, not only guarantee the smooth roca, mechanical compact spinning, meet the demand of normal production and improve the work efficiency and the qualification rate of bearing. Guide shaft dimensions as shown in figure ( 2) 。 Three, in order to ensure the qualified rate of bearing, bearing should pay attention to the following: 1. Must pay attention to adjust bearing machine when bearing 'five clearance and a concentricity. 'five gap which locate the casing hole and axial clearance of big end diameter and big nut inner hole and lead axial clearance of small end diameter, the clearance between the hose inside diameter and outside diameter shaft small end, the clearance between the gasket and bearing outside diameter, clearance of the outside diameter of the base gasket. （ Five clearance: casing, guide shaft, rubber hose, bearing, gaskets, base) 。 Rubber roller bearing core shell and make sure that guide shaft concentricity is less than 0. 02mm. 。 Lead and aluminum shaft diameter tolerance matching - lining rubber roller diameter 0. 1 ㎜, guide shaft diameter is too big, difficult put rubber roller; Guide shaft diameter is small, the worn shaft diameter, aluminum lining rubber roller slippage, likely to cause a set of partial damage or rubber roller. 2. Adjustment method: set of aluminum can be a time when lining hose put bearing, hose preoperative adjustment. After being casing pressure position adjust, locking nut, before being normal aluminum casing pressure lining hose. Casing pressure normal working pressure & gt; 0. 6 mpa, casing pressure process in place at a time. 3. In the process of bearing the fingers under the ban on head or rubber roller, in case of rolling injured finger.