Патент USA US2127585код для вставки
Aug. 23, 1938. 2,127,585 R. |_. DOWDELL BALL MAKING MACHINE 2'Sheets-Sheet 1 Filed June 7, 1937 F16. ./ 33 3 / 00000131 in ___/l I A . 55 65 flu/6222,10)’ cg)’ BMPHLJDOWDELL ?ue/f Thank JTTOENEYJ‘ Aug. 23, 1938. 2,127,585 R. L. DQWDELL BALL MAKING MACHINE Filed June 7, 1957 2 Sheets-Sheet 2 52 56 7 23 93 7/ 9a " 50 55 /2 Zfnl/eifziar 73 EAL PHL . DOM/DELL ’ ) ' Patented Aug’. 23, 1938 2,127,585 UNITED STATES’PATENT OFFICE 2,127,585 BALL MAKING MACHINE mph L. Dowdell. St. Paul, Minn. Application June ‘I, 1937, Serial No. 146,826 21 Claims. (CI. 29-33) This invention relates to machines for the man-' ufacture of metallic balls, and has among its ob jects to provide a device which is compact and in which slugs can be rolled accurately to spheri cal shape, at great rapidity. Features of the invention include: the mount ing of the device on a motor as a base and the driving of the device by the motor; the use of three discs or plates between two of which a third disc operates; and adjustment of one of the discs for changing the spacing conformably to the desired size of the ball; the use of a device for cutting slugs and the mounting of the same Referring ?rst to Figure 1, the numeral I indi cates an. electric motor of any preferred type op erating with its shaft 2 vertical. 0n the top of the motor is secured, by means of screws, 9. plate 3. The shaft 2 has a bearing in plate 3. Rising 5 from plate 3 are three rods or spacers 4. The bottoms of the rods are threaded into the plate 3 and jamb nuts 5 are provided. Mounted at the top of the rods 4 is a disc ‘I having openings 8 therein through which the 10 upper end of the rods slidably pass. The upper ends are threaded, and have upper and lower ad justing and jamb nuts 9 and I0. These nuts with the threads provide means for adjusting the disc 1 on one of the discs which moves; the mounting 15 of the disc and knife on a driving shaft common ' relatively to the disc I2 to vary the spacing for 15 to both; the cutting of the slugs by means ro ‘ tating with 'one of the discs; the arrangement , whereby cutting takes place between the discs; the utilization of the pairs of discs as means for 20 forming a reservoir or hopper for the ?nished articles; the use of pairs of discs in tandem whereby one pair of discs delivers to a hopper and this hopper delivers to a second pair of discs; the provision of means whereby knife adjustment 25 and space adjustment of the discs may be accom plished to provide for the manufacture of dif ferent sizes of balls; and all details of construc 35 40 50 55, forming substantially spherical bodies from ir regularly shaped bodies or slugs placed therebe tween. The cross-sectional areas of the groove 25 may be varied as well as the cross-sectional con ?guration and the grooves may be in the rotative disc as in Figures 1, 2 and 4, or in the stationary disc as in Figure 5. inherent in the disclosure. ' Objects, features and advantages of the inven Mounted on the disc l2 and thereforemovable 30 tion will be set forth in the description of the with the driven disc, is means for cutting slugs drawings forming part of this application, and in - from stock, (in this instance wire stock), and said drawings delivering the slugs between the plate. In fact, in this embodiment the cutting takes place be Figure 1 is an elevation partly in vertical sec tween the plates which is a feature. This cutting 35 tion showing my invention mounted upon and op means comprises a knife l5, (see Figure 2), which erated by an electric motor; ' Figure 2 is a plan section on line 2-2 of Figure is set in a recess it, (see Figure 1) of the disc it’. 1 viewing the spiral groove and knife mounted in A screw ll secures the knife, and said knife co operates with the under surface 20 of the disc ‘I the lower disc; , to shear oil the projecting portion 2| of the stock 40 Figure 3 is a vertical section showing a modi? wire 22. This stock wire is introduced through an cation in which means is provided on the rota opening 23 in disc 1, and may be fed by any suit tive disc for adjusting the cutting means; Figure 4 is a vertical section showing pairs of able means such as rolls 24. In this embodiment discs arranged in tandem, so that balls formed the knife provides two shearing edges respectively by one pair are delivered between another pair designated 26, 21, in Figure 2. The knife may 45 for ?nishing and also showing the shearing knife have other shapes providing one, or morethan two mounted on the shaft upon which the discs are cutting or shearing portions or edges. The disc I2 is held to shaft 2 by screw 30. The mounted; I Y Figure 5 is a modi?cation in which the spiral rolling or shaping operation takes place in a hop grooves are on the stationary instead of on the per 3| having a slanting bottom 32 and a delivery 50 spout 33. The present motor has a speed of rota movable disc; Figure 6 is a detail showing a modi?ed groove tion of about 1100 revolutions per minute, and shape; and thus very rapid rotation of the disc l2 occurs, with Figure '7 is a detail section of another modi?ed the rapid production of a stream of spherical groove shape. bodies, which flow into the hopper from the 55 tion shown, along with the broader ideas of means 30 producing balls of di?erent sizes. The disc I2 is mounted upon the shaft 2 and is arranged below the disc ‘I, and has on its upper faceaspiral groove l3. The plates thus cooperate to change the shape of bodies or slugs placed therebetween and 20 to give such bodies or slugs a substantially spheri cal form. The plates thus provide means for 2,127,585 2 . periphery of the moving disc. Suitable space is provided between the periphery of the disc and means inasmuch as the'knife cooperates with the ?gure has also connected thereto a second casing 12 and it will be understood that any number of the connections of this kind can be made to provide a “stack” of chambers having ball form ing means therein. In Figure 4 the stationary discs ‘I form the top and bottom of a receiving chamber ‘I3 into bottom surface 20 of the disc ‘I to shear-cut the which balls are delivered from between the upper slugs from the supply. It is noted that the balls are formed within the hopper in the structures be delivered through an opening ‘I5, between the‘ the hopper wall to assure exit of the balls. It is noted that the knife is located in the center of the disc and that in this instance the slugs are carried from center to periphery. . One of the discs constitutes part of the cutting ll) ingly threaded casings ‘II. The lower disc in this of Figures 1, 4 and 5. This scheme has the ad vantage of compactness. Referring now to Figure '7' the use of a V 15 shaped groove is preferred and is advantageous pair of discs ‘I and I2 and from which they may ' lower pair of discs ‘I and I2. The upper disc I 2 has a recess 11 therein for receiving'the knife ‘I8 ' which is mounted in a cross slot ‘I9 of the shaft 80. This shaft may be the electric motor shaft 15 because it allows of size variation. Also there is a space 36 between the bottom of the body 35 being rolled, and the bottom of the groove. In or any other suitably driven shaft, and it is noted that in this case the disc or discs and the stead of making the groove strictly V-shaped, 20 a channel 31 has been provided, allowing slightly more space below the ball to take care of the grindings. The same device indicated at 39 of a feature. A jam nut 8| threaded onto the shaft 80 secures the knife ‘I8 in operative relation. The upper disc ‘I has the usual opening 23 through which the wire 22 is introduced to cutting posi Figure 6 has been provided for the spherical groove 49, thus leaving a space below the spheri ner-wrench openings 95 by which-they can be ' 25 cal working surfaces of the groove. In Figure 3, a modification has been shown in which provision is made for adjusting, the knife ' when the spacing adjustment between the discs is made, so that the knife will always be in shearing relation with the under surface 20 of the top disc ‘I,' and also to provide a separate adjustment ‘of the knife support relatively to in both discs. To these ends a cylindrical recess 50 leads downwardly from the top surface of the plate l2 and this recess is threaded as ‘at 5|. In this recess 50 is ?tted a plate 52 which is in threaded engagement with the threads 5|. The plate 52 has spanner-wrench openings 53, by ‘which it can be rotated to adiust it vertically by 40, means of the screw threads. _ In this manner a knife are mounted on the same shaft, which is tion. In this embodiment the discs ‘I have span adjusted to vary the spacing between the discs. and when the spacing is increased a knife (not shown) is substituted for knife ‘I8, the substi tutedknife being of the proper vertical height to have its bottom rest on the bottom of the slot ‘I9 with its top in operative relation with the 30 surface 20. It is understood that the slot ‘I9 is of. sufficient vertical height to accommodate a knife of thev maximum vertical height,‘which may be_ required by the adiustment for maximum spacing between the discs. The discs I2 are suit ably secured for rotation with shaft 80 and the lower disc has a depression 81 in which is adjust ably threaded a disc 88. In Figure 4; partly ?nished spherical bodies can be delivered through the opening ‘I5 and'given a final ?nish between ' ' very ?ne adjustment can be obtained, it being the lower discs. understood that very fine threads are used. The :plate 52 has a socket 55, and in this socket is slidably arranged a knife 56. In the socket is also a spring 51 which presses the knife upwardly against the under surface 29 of the disc ‘I. The opening 23 receives the stock wire 22 as in Fig delivered to the lower storage chamber 13*. In Figure 5 has been shown a modification in which the spiral groove 90 is in the upper disc ‘I. In this instance the lower disc l2 which is ro tative with‘the shaft 2 has a smooth upper face 93. The lower disc is provided with the recess ure 1. A screw 60 passes through the knife and 50, having adjustably threaded therein the plate into the plate 52 which screw is unscrewed when 50 a down adjustment of the plate 52 is made. By this means the upper surface of the knife 56 remains in shearing relation with a surface 20 for all adjusted positions of plate 52 and of the disc 'I on the rods 4. By the adjustment of plate 55 52 as well as adjustment of they plate ‘I, the de vice is adapted for operating on different size 52 in turn having a recess 55 and knife 56 there in, all as in Figure 3. The chamber ‘I3 is here slugs to produce different size balls. Moreover, these adjustments can be made conformably to the character of the metal used, which adjust are quite important in order to obtain just t 60 ments the right pressure, just the right character of feed, etc. The disc I2 is cut away as at 55, to provide leads for the slugs into the spiral groove, when the upper surface 66 of the plate is at a 65 lower level‘ than shown in Figure 3. Referring now to Figure 4, this is a modi?ca tion in which pairs of discs are used in what might be called tandem relation. This ?gure also shows how a stationary disc ‘I of any pair 70 can form the bottom of a receiving or supply chamber, and shows a simple schemeby which a any number of stationary discs can be connected together by casings in superposed relation. Each disc ‘I, in this instance, is threaded as at ‘III and 75 the discs are connected by means of correspond These ?nished articles are then formed as in Figure 4. In Figure l, the opposed faces of the discs are parallel. In Figures 3, 4 and 5, thesefaces are non-parallel. In Figures 3 and 4, the surfaces 2|] are slightly dished so that the space between the discs are convergent outwardly. In Figure 5 this outward convergence is obtained also by cupping the upper disc, but here the spiral groove is formed in the cupped surface. Of course either disc may be cupped, and either or both 60 discs may have a spiral groove or grooves. For convenience I have used the word “disc" to designate the elements which cooperate to spherically form the non-spherical bodies or to ?nish bodies which have been roughed up into approximately spherical form. No limitation as to shape is intended by the word “disc”, because these elements may be of any desired shape. The disc, however, is a preferable shape for most pur poses, since it is light of weight, and easy of formation. It may be stamped or molded. 70' I have also used the word "slug” to designate a piece of supply material which is to be spheri cally or substantially spherically formed, and of course no limitation is meant by this word. 75 \ - ' 3 2,127,585 . of members mounted coaxially for rotation rela The present device can be used for completing the ?nish ofbodies which have already been. tive to ‘each other, one of said members being formed so as to progress a. slug oi.’ material along‘ -formed into spheres. Important separate fea--, tures are the cutting of the slugs by means rotat ing with the disc; the cutting between the discs; and the formation of the bodies by means placed _ a spiral path ofincreasing radius with respect to said ‘members, during .its formation into a ball, and means'i’or introducing uniformed-slug ma terial adjacent the axis of said ‘members. within an enclosure which may act as reser 6. A ball forming machine comprising a.pair voir for or hopper for the ?nished articles or from which un?nished articles can be delivered to other ' of members mounted coaxiaily for rotation rela tive to each other,‘one of said members being 10 discs. formed with a spiral way so asLto progress a slug I claim as my invention: ' I vof material along a spiral-‘path of‘ increasing radius with respect to said members, during its formation‘ into a ball, and means'for introducing uniormed slug material adjacent theaxis of said 15 ' 1. In a device of the class described, a shaft having thereon a ?rst disc, 9'. second disc opposed to the ?rst, said discs having means for giving and being cooperable to give a substantial spheri cal form to non-spherical ‘ slugs placed there ' members.‘ .. . between, means for‘cutting slugs from stock ma \ '7. A ball forming machine comprising a pair terial, part of said means being operated by said of members‘ mounted coaxially for rotation rela tive to each other, one of said members being shaft, a hopper into which-the cut slugs are de 20 livered, a second pair- of discs constructed and formed so as to progress a slug of material along a 20 operable in thefmanner of the ?rst-mentioned spiral path of increasing radius with respect to disc, the second disc of the second pair forming said members during its formation into a ball, the bottom of said hopper and having an opening ' one of said members being formed with an open through which balls are delivered between the ing adjacent its axis for the introduction of slug stock, and the other member being formed to co second pair of discs. , operate as a shear with respect to said- opening ~ 2. A device of the class described comprising a ' , , motor having a shaft rising therefrom. a ?rst during relative rotation. 8.‘A ball forming machine comprising a pair member rotatable with said shalt, a second mem ber above the ?rst and havingvan opening through of plates mounted in spaced relationship for 30 which supply material is fed toward the ?rst movement relative to each other, said plates be ing of a con?guration such that they cooperate member, means for adjusting the spacing between the members, said members having means for giving and being cooperable to give a substantial spherical form to non-spherical slugs placed therebetween, a cutter on the ?rst member, a spring urging it toward the second member, and to roll an irregular body into a‘ ball, one of said plates being formed with a hole for the introduc tion of stock adjacent the axis of rotation of the relatively rotatable plate, and a shear knife mounted on the other plate for rotation across means for adjusting the cutter to cooperate with the second member to cut slugs from supply ma terial fed through the opening of the second said hole. which the slugs are separated, and a passage being formed with a way so as to progress a between that member which forms the bottom of the reservoir by which balls are delivered be tween the second pair of members. 5. A ball forming machine comprising a pair slug of material along a spiral path with respect Itoo said plates so as to form said slug into a - 9. A ball forming machine comprising a pair of plates mounted in spaced relationship for move ment relative to each other, said plates being 40 member. of a con?guration such that they cooperate to a 3. A device of the class described comprising a motor having a'shaft rising therefrom, a, ?rst roll an irregular body into a ball, one of said member rotatable with said shaft, a second mem- - plates being formed with a hole for the introduc ber above the ?rst and having an opening through tion of stock adjacent the axis of rotation of the which supply material is fed toward the ?rst relatively rotatable plate, a shear knife mounted 45 member. means for adjusting the spacing between on the other plate for rotation across said hole, the members, said members having means for and means for adjusting the plane of rotation of giving and being cooperable to give a substantial said shear knife with respect to said hole. 10. A ball forming machine comprising a pair spherical form to non-spherical slugs placed therebetween, a cutter. on the ?rst member and, of spaced plates mounted for rotation relative to means for adjusting it to cooperate with the each other, one .of said-plates being formed with a substantially spiral groove of substantially V second member to cut slugs from supply ma . terial fed through the opening of the second shaped cross-section. ,11. A ball forming machine comprising a pair member, and a chamber'in which said members operate and forming a hopper into which the of spaced plates mounted for rotation relative 55 ?nished bodies are delivered from the members. to each other, one of said plates being formed with awsubstantially spiral groove of substantial 4; In a device of the class described, two ver tically spaced pairs of ball producing means, each ly V-shaped cross-section with a minor groove pair consisting of an upper and a lower member, at the base of the V-shaped groove. 12. A ball forming machine comprising a pair 7 60 60 each pair of members having means for giving and being cooperable to give a substantially of spaced plates mounted for rotation relative spherical form to non-spherical slugs placed to each other, one of said plates being formed with a substantially spiral groove of substantially ‘ therebetween, a tube havingithreaded engage ment with the upper members to form therewith semi-circular cross-section, and a. smaller groove at the bottom of the ?rst groove. , a reservoir, a shaft for driving the lower mem 65 bers oi.’ the pairs-means on the shaft cooperable 13. A ball forming machine comprising a sta with one of the members for producing slugs at a tionary plate, a motor having a shaft perpendicu point between that pair of members which oper lar with said plate, a plate mounted on said shaft ates in the reservoir, means through which the for rotation in spaced relation in a plane par stock is fed to the slug producing means and from allel with said stationary plate, one of said plates 70 all. 14. A ball forming machine comprising a sta- 76 2,127,586 tionary plate, a motor having a shaft perpendic ular with said plate, a plate mounted on said shaft for rotation in spaced relation in a plane parallel with said stationary plate, one of said plates being formed with a spiral groove so as shaft for rotation in spaced relation in a plane, parallel with said stationary ‘plate, one of said with respect to said plates whereby to form said plates being formed with a way so as to progress a slug of material along a spiral path with re spect to said plates so as to form said slug into a ball, said stationary plate being apertured for the introduction of $1118 stock adjacent the axis slug into .a ball. of said rotatable plate. to progress a. slug of material along a spiral path I ~15. A ball forming machine comprising a sta 10 tionary plate, a motor having a shaft perpendic ular with said plate, a plate mounted on said shaft for- rotation in spaced relation in a plane parallel with said stationary plate, one of said plates being formed with a. spiral groove of sub 15 stantially V-shaped cross-section so as to progress a slug of material along a spiral path with re spect to said plates to thus form said slug into 19. A ball forming machine comprising a sta tionary plate, a motor having a shaft perpendic ular with said plate. a plate mounted on said shaft for rotation in spaced relation in a plane, parallel with said stationary plate, one of said plates being formed with a way so as to progress a slug of ‘material along a spiral path with re spectto said plates so as to form said slug into 10v 15' a ball, said stationary plate being apertured for the introduction of a continuous length of slug - a ball. 16. A ball forming machine comprising a sta 20 tionary plate, a motor having a shaft perpendicu lar with said plate, a plate mounted on said shaft for. rotation in spaced relation in a plane parallel with said stationary plate, one of said plates being formed with a spiral groove of sub stantially semi-circular cross-section so as to progress a slug of material along a spiral path with respect to said plates so as to form said slug into a ball. 17. A ball forming machine comprising a sta 4 tionary plate, a motor having a shaft perpendic ular with said plate, a plate mounted on said shaft for rotation in spaced relation in a plane parallel with said stationary plate, one of said plates being formed with a way so as to progress a slug of material along a spiral path with re spect to said plates so as to form-said slug into stock adjacent the axis of rotation of said rotat able plate, and means on said rotatable plate 20 for shearing of lengths of stock into slugs as the plate rotates. _ 20. A ball forming machine comprising a plu rality of stationary ~plates, a motor having a shaft perpendicular of said plates, a plurality of plates 25 mounted on said shaft for rotation in spaced re lationship parallel with said stationary plates, said plates being formed so that material in troduced between said stationary and movable plate will be rolled into a ball form, each of 30 said stationary plates being formed so as to per mit the introduction of material adjacent the axis of rotation of said movable plates. 21. A ball forming machine comprising a pair oflspaced plates mounted for rotation relative 35 to each other about an axis which is perpendic a ball, and means for introducing slugs of ma ular to the plane of each plate, - one of said terial adjacent the axis of rotation of said rotat plates being slightly dished, and one of said plates able plate. being shaped with a way so as to progress ma ‘ 18. A ball forming machine comprising a sta tionary plate, a motor having a shaft perpendic; ular with said plate, a plate mounted on said terial from a position adjacent the axisalong a 40 spiral path relative to said members. , RALPH L. DOWDELL.