Патент USA US2128614код для вставки
Aug. 30, 1938. N. KOBAYASHI ‘ 2,128,614 ' RING FOR USE IN A SPINNING FRAME Filed Jan. 3, 1936 Fl-EZ 2 Sheets-Sheet 1 F] E A Aug- 30, 1938. N. KOBAYASHI 2,128,614 RING FOR USE IN A SPINNING FRAME Tiled Jan. 3, 1936 ‘ ' 2 Sheets-Sheet 2 3110014104; Patented Aug. 30, 1938 v 2,128,614 UNETED, STATES PATENT OFIFIQE ‘ 2,128,614. I ' t ' . RING FOR USE IN A SPINNING'FRAME ' Norio Kobayashi, Kawachi-gun, ‘Osaka, Japan Application January 3, 1936, Serial No. 57,415 ll Claim. (01. 117--59.5j This invention relates to improvements inrings for use in a spinning frame, and particularly rings made of sheet steel. Heretofore, the ring for a spinning frame has 5 been usually manufactured from a block of low carbon steel by the operations of forging, ma chining, grinding, carbonizing or case-hardening, and the last operation of hardening. In such op erations, not only many di?iculties have been en 10 countered in' obtaining the desired shaping, but ' cation of the-surface along which the traveller runs. This invention has for its object to obtain an improved superior ring, thereby removing near 1y all of the above-mentioned disadvantages 01 inherent to existing rings made according to the ordinary method. With the above object in. view, according to this‘ invention, the ring is manufactured from a relatively thin sheet of steel containing the 10 required amount of carbon (or ‘certain of the also the quality’ of the product largely depends upon the temperature and length of the ‘carbon izing operation, the carbonizing medium used, nary heat treatment, and the method consists and the size of the oven or furnace ‘and size and in ?rst forming said sheet of steel into a cup 15 shape of the box employed for carbonizing op eration, etc. Thus, the produced article is infe rior from a number of viewpoints, among which with a'central opening ‘in the cup bottom, then subjecting it to stages of rolling and pressing may be mentioned:-- ' ' (a) Unevenness of the shape and dimension of 20the main portion of the ring; alloy steels) adapted to be hardened by ordi operations so as to shape it into the desired shape of the ring, during which operations a hollow chamber or chambers at one orvboth ends of the ring iseformed ‘by curling the edge or edges, said , chamber' or chambers being in communication (b) The main portion is generally insuf?cient ly ground, If suf?cient grinding is eiTected, the desired shape of the main portion is inevitably with the atmosphere through a narrow passage or injured since such shape is hard to attain; _ 25 (c) All rings ‘cannot be subjected to an equal degree ofpcarbonization, so that it is not possible 'Heretofore, it has been also proposed to make to obtain equal hardness by a'subsequent hard ening process throughout all the products; (d) in one and the same ring, the effect of the passages. , ‘‘ a ring for spinning frames from sheet metal by the, operations of press stamping for the purpose of obtaining a light weight ring at a lower cost of manufacture, but, the produced articles were inferior due to stresses setup during the press carbonizing operationcan: not beuniformly dis stamping‘and due to the fact that a considerable tributedover the whole circumference, so that the hardened article does not possess uniformity the last heat treatment for hardening, and such of hardness and, consequently, a wavy wear of sheet metal ring has never been practically used. the ring occurs after a certain period of use; 35 (e) Required hardness is obtained on the skin only, and the hardness gradually decreases to-_ ward the center of the mass of the ring, sothat the ring will have to be abandoned after small It is believed'that the present inventor is the ?rst-in obtaining a most useful ring made from sheet steel. 30 wear; 40 , - . deformation ‘of the ring is unavoidable ‘during - In order‘ that‘thisinvent-ion may be clearly understood and readily carried into practice, ref erence may ‘be had to the appended explanatory ' (1‘) 'Due to the fact that the head, neck and body of the ring have different thicknessesand that the degree of carbonization is not uniformly sheet of drawings in -which:- distributed in'circumferential as well as radial tothis invention, andse'ctions of the interme directions, irregularity of contraction and ex pansion can not be avoided at the time of the ?nal hardening process, in consequence of which the shape of the ?nal product is considerably strained, failing to obtain a true circle ring. Besides the above-mentioned defects, the ex 50 isting ring has the drawback that it is relatively heavy, in consequence of which theconsumption of power required for the building motion is rel atively large, and it requires a separate lubri 55 cating system when it is desirable to effect lubri~ diate products obtained by said successive opera tions; 45 a ' Figures 1 to‘ ll'show diagrammatically succes sive operations for producing the‘ ring according Figure 12 shows partly in section the ?nal product obtained by said operations; Figure 13 is a plan thereof; Figure 14 shows partly in section another form of the ring made according to this invention, se cured to a ring rail or plate; Figures 15 to 20 are sections of various slightly modi?ed forms of the rings; Figures 21 to 26 show in section different forms 55 2 2,128,614 of double-rings, all made according to this in vention. In carrying out the invention, a sheet of steel containing a predetermined amount of carbon, ployed. To introduce the lubricant into the chamber I8, the ring is immersed into the grease maintained at high temperature for a suitable length of time, whereby hot grease will get into preferably about 0.8% of carbon, (or certain alloy steels), is ?rst subjected to a suitable annealing the chamber through the slit I9. process. Such annealed steel sheet a is pressed into the form of a cup I) as shown in Figure 2. small holes 20 may be formed at the top portion as shown in Figures 15 to 26. When the ring is allowed to cool, grease in the chamber I8 in creases its viscosity to the normal degree and is 10 retained therein. When in use, however, the ring is somewhat heated by the heat of friction For example, the pressing operation is effected by the press shown in Figure 1, in which I is a die; 2 a punch; 3 a support biased by a spring 4; and 5 is a cutting die. The cup b is out exactly to the required height as shown in Figure 3. Employing for example a press as shown in Fig~ 15 ure 4, the cup I)’ is then pressed into the shape of the cup c shown in Figure 5. In Figure 4, 6 is an upper press die; ‘I a ?ange forming die; 8 is a spring pressed support; and 9 is a ?xed sup port. The cup 0 thus formed in the press shown in Figure 4 has an annular flange I0 at the bot tom of the cup. . Said ?ange I0 and the neck of the cup 0 is shaped and glazed into exactly cir cular formation by means of a roller I I as shown in Figure 6. The glazed cup 0 is then subjected 25 to a punching machine as shown in Figure 7, and a central opening I2 is punched in the bot tom of the cup, as shown in Figure 8. The cup 0' having the central opening I2 is then gripped by a chuck I3 as shown in Figure 9 30 and, while being rotated, the inner edge I4 of said opening is curled outwardly by means of a drum-shaped roller I5. The cup 0' is thus formed into a ring (1 as shown in Figure 10. Said ring 07, is gripped by a chuck I6, and the curled edge 35 I4 is further curled upwardly and outwardly and glazed by means of a roller H, as shown in Fig ure 11. At the same time, the upper surface and the inner edge of the head which is to be engaged by the traveller are shaped and glazed. Thus, 40 the ring has been accurately shaped and glazed on all surfaces by the operations of rolling. The ring R thus completed is shown in Figures 12 and 13. It is to be noted that during said rolling processes a chamber I8 is formed within the head 45 of the rEng, which is in communication with the atmosphere through a narrow slit I9. The ring R. is then subjected to heat treatment for harden ing in usual manner. The invention may be embodied as illustrated in Figures 14 to 26, which will be found self explanatory, and any further explanation will not be required. It is to be understood that the forms of rings illustrated are merely examples, and that the invention is applicable to still other 55 forms of rings, as required to suit particular de mands. In the ring made according to this invention, the chamber I8 is formed in the head with which the traveller engages. This chamber I8 is adapt 60 ed to serve as a lubricant reservoir. Preferably a lubricant such as grease which is normally solid or viscous body but converted into liquid form at somewhat elevated temperature is em In order to facilitate the introduction of grease, one or more produced by the traveller running along the ring at high speed, so that the grease in the cham ber I8 is lique?ed and ?ows out of the chamber 15 through the narrow slit I9 at an extremely low rate of ?ow. Thus, the wearing surface of the ring is automatically lubricated. In order to lu bricate also the outer surface, a plurality of small holes 2| are provided along the outer wall as 20 shown in Figures 15, 17, 19, 21, 23 and 25. When the chamber I8 is formed by curling the edge in wardly, leaving a narrow slit I9 on the outside, said holes 2I are formed in the inner wall, as shown in Figures 16, 18, 20, 24 and 26. 25 In the modi?ed forms shownin Figures 21 to 26, showing double-rings, each ring is provided with two lubricant chambers I8 and I8’, each communicating with the atmosphere through a narrow slit, or through a narrow slit and small 30 holes. It will be understood that the sizes of the slit I9 and holes 20 and 2| are less than what are actually shown in the drawings, and that these excessive sizes shown in the drawings are merely for purpose of illustration. From. the foregoing, it will be seen that the ring produced according to the invention is con siderably lighter in weight, so that a saving of the power required for building motion can be attained. The ring is homogeneous in its struc ture and hardness throughout the whole mass, without any strain, so- that it is possible to at tain a very soft running of the traveller, and there is not any tendency of causing a wavy wear 45 of the ring. Moreover, according to the inven tion, the ring is equipped with a lubricant reser voir within the ring per so, so that any special lubricating system is not required for the rings. According to the invention, the cost of manufac ture may be considerably lowered as compared with the manufacture of the existing rings. What I claim is:A ring for use in spinning frames formed from a single piece of sheet metal, comprising an an nular side, an end of said side being shaped by bending so as to form an annular receptacle for lubricant and said receptacle having an extreme ly narrow annular slit encircling said ring at the bottom of said receptacle and adjacent the upper end of said annular side, lubricant being adapted to flow fromv said receptacle through said narrow slit directly onto- the annular side. ‘ NORIO KOBAYASHI.