US1585155A - Metal-mixing machine - Google Patents

Description

May 18 1926. 1,585,155

J. H. KONIGSBERG METALJ MIXING MACHINE Filed July 21. 1923 3 Sheets-Sheet 1 Fi .5 Fi .1

51'" W 4 NE) May 18 1926.

J. H. KONIGSBERG METAL: MIXING MACHINE File y 2l, 1923 I5 Sheets-Sheet 5 A TTOHNEYS Patented May 18, 1926.

U I T S T JOSEPH H. 'KONIGSBERG, 051 NEW YORK, N, Y.

METAL-MIXING MACHINE.

Application filed July 21, 1923. Serial No. 652,942.

This invention relates to metal puddling mechanism and particularly to that type of such mechanism which is adapted to operate a stirring rod having one end thereof inserted into a melting-pot.

One of the objects of this invention is the provision of means for automatically puddling a molten metal alloy into a homogene ous mixture, in simulation of a hand puddling operation. V

A still further object of this invention is the provision of means readily adjustable to reach all over pots of various sizes for thoroughly mixing the molten metal contained in pots varying greatly in diameter and depth.

A still further object of this invention is the provision of means for ascertaining the temperature of the mixture during the mixing operation, and at different points in the ot. P For the attainment of the aforesaid and other objects as will appear from the description which follows, I employ the mechanism shown in the preferred forms in the accompanying drawings in which,

' Fig. 1 is a front elevation of my improved mechanism showing the mining or stirring rod partly broken away and fore-shortened.

Fig. 2 is a partial horizontal section of my improved mechanism taken on the line 2-2 of Fig. 1.

Fig. 3 is a side elevation of my improved mechanism.

Fig. l is a section on the line 4- 1 of Fig. 1, and Fig. 5 is a front elevation of a portion of the machine, showing various arcs of motion and some of the different sizes and shapes of pots to which my mechanism can be adjusted.

In the practical embodiment of my invention I provide an adjustable mixing or stirring rod 10, preferably hollow through out the length thereof for allowing the passage of air therethrough to cool said rod. A concave ladle 100 similar in shape to that used in hand puddling is suitably secured, as by means of the set screw 101, to the lowermost extremity of said rod 10, and has suitablev openings as 11. Said rod is suitably supported in the bearing 13 for longitudinal motion therein, while said bearing 13 is preferably pivoted at 12 on the upstanding bifurcated arm 14: for oscillation about a horizontal axis, whereby the said blade-like ladle 100 may be oscillated in a substantially vertical plane, while free to move longitudinally.

Said arm 1 1 terminates at its lower end in a vertical, hollow, cylindrical portion 114, and is mounted on a substantially upright stud 115, secured to the link 15, whereby movement of said rod in a horizontal are about a vertical axis, is permitted. It will be seen from the above that the mixing rod 10 is so mounted that universal movement of the ladle 100 in any direction can be obtained.

Means are provided for guiding said link 15 for movement in a plane, preferably horizontal. Said means comprises the upper guide plate 16, the lower guide plate 17, between which plates the link 15 is constrained to move, and the connecting rod 18 pivotal- 1y secured to the end of said link 15 at one end 19. The other end 20 of said connecting rod is adjustably held in the crank 21,

on the worm shaft 27, the worm 28 on said shaft 27, and the worm wheel 29 on said shaft 22. A lead screw 30 is supported at one end thereof in the end 31 of the crank 21 and is arranged in the groove 32 of said crank, the other end of said screw carrying the bevel gear 37, meshing; with the bevel gear 34. The shaft 22 is made hollow in order to carry the bevel gear shaft 35, on

one end of which said bevel gear 3 1 is mounted and the other end of which is squared as at 36 for engagement with a suitable removable crank handle or wrench not shown, whereby said shaft 35 and the gear 34: carried thereby may be manually rotated for purposes of adjusting the operative length of the crank 21 when the machine is stopped for that purpose as will be more fully described hereafter. It will be understood that the shaft 35 is operatively connected to the shaft 22 during the operation of the machine as by means of a suitable set screw, so that the shafts 22 and 35 and the crank 21 all rotate as a unit, and that said shafts 22 and 35 are operatively disconnected when it is desired to adjust the nut 39.

A universal joint 40 of any suitable type at the end of the connecting rod 13 is suita bly secured to the nut 39, which is so mounted on the lead screw that said nut cannot rotate with said screw but is permitted to move longitudinally of said screw on the rotation thereof.

It will be seen that the distance of the end 20 of the connecting rod 18 from the center of the shaft may be readily adj usted by-rotating the shaft in the proper direction after the set screw securing said shafts together has beenloosened, thereby rotating the lead screw 30 through the gears 31- anc 37 and causing the nut 39 and the joint 40 carried thereby, together with the end 20 of the rod 18, to move along said screw to the required point. The radius of the circle, in which said end 20 of the con necting rod moves, is thereby varied, and the stroke of the connecting rod correspondingly varied.

The rod 18' is also given transverse reciprocatory movement in addition to its longitudinal movement. This is accomplished by means ofthe cam ll on the shaft -l2, (Fig. 2) said shaft being rotated through the gear e3 on the shaft 22 meshing with the gear on the shaft 45, onwhich is also mounted the bevel gear 46 meshing with the bevel gear 1 7 on said shaft 42. A suitable bearing 48 supports the cam rod 49, at one end of which the cam roller 50 is suitably supported, while the other end of said rod 49 carries the guide frame 51. through which the connecting rod 18 is' passed. Said. guide frame 51 is suiiiciently' high to allow for the rotation of the end 20 of said rod 18 iua circle, but the width of said frame is substantially the same as that of the rod 18. The entire frame 51 together with the rod 49 carrying said frame are caused" to move in the direction of the axis of said rod 19 or substantially perpendicular to the rod 18, by means of the cam 41, whereby the link 15 is reciprocated horizontally between the guides 16 and 17, carrying the stirring rod 10, and the ladle '100 mounted thereon,across the pot.

The gear wheels 413 and 44 are so proporsyn is not, therefore, brought back to its initial point after each. revolution of th crank, but

00 red 10 is the universal joint 53 to a point in spaced relation to said initial point. At the upper end 52 of thestirring by means of which said rod 1 0 is operatively connected to the lead screw 130. A nut 139 is connected to the pin 5st of said universal joint and is mounted for movement on the screw 130. The adjustment of the not 139 on the lead screw 130 for varying the operative radius are then brought to such points of the crank 121, being substantially identical with that of the corresponding crank 21 and the adjusting mechanism carried thereby, the detailed description above of said crank and adjusting mechanisn'i will suffice for both mechanisms. On the shaft 122 carrying the bevel gear 13-l is a sprocket wheel 55 (Fig. 3) operatively connected, as by means of the sprocket chain 56 to the sprocket wheel 57 on the shaft 22, whereby said shafts 22 and 122 and the parts carried thereby are operated in unison.

F or ascertaining the temperature of the molten metal in any of the pots 5i)- and (30 a pyroineter rod (ll is passed through the hollow stirring rod 10, and is supported in a suitable bearing 161 secured by the screw 101 to said rod 10, a number of holes 111 in said bearing allowing the passage of air therethrough. Said rod ('31 is operatively connected, as by means of suitable wires 55 to the indicator dial 62, whereby the temperature at any point in the pot in which the end of the pyrometer rod is temporarily posi tioned can be easily read, and the variations in temperature during the mining operation determined. A cross (53, is interposeo at any point in the hollow rod 10, a suita le pipe 164 leading from one opening in said or to an air blower as 64:, while the pyromet wires 65 to the indicator dial 62 may be through the other opening in said cross. During the mining operation, air is blown through said hollow rod and throu h the openings 111 in the bearingltil, by in said blower (i l, whereby quan'ti ies of continuous y liberated at diffc out p .r the pot, said air serving to agitate the metal therein during the act of escaping to the surface. The air has the further effect of gathering the impurities in the meta to carrying said impurities to the St or where they may readily be skimmed off.

The operation of my improved machine is as follows:

The length of the hollow rod 10, is first djusted by loosening the set screw 110, and telescoping the parts together 1 separatr said parts.

The universal connecting joints s0 and alo the axes of the adjusting screws 30 and 30 at the proper distance from the center of the shafts 35 and 135,.as will the ladle lot), motion in the desired Jath.

llU

tially the same manner as though it were manually used by a skilled puddler. That is, the heavier metal, which tends to fall to the bottom of the pot, is scooped up and spilled around and up through the lighter metal to the top of the pot and left there by the withdrawal of the ladle from thereunder, while the plane of the path of the ladle is constantly being changed to insure thorough mixing of the metal in all parts of the pot.

After the correct operative lengths of the cranks 21 and 121 have been determined and the universal joints 40 and 53 set at the proper points, through the rotation of the shafts 30 and 130, the shafts 22 and are secured together, power is applied to the shafts 22 and 122 through the various pulleys and gears, and the cranks 21 and 121 are continuously rotated.

It will be seen that the motion of the crank 121 causes the ladle to move from left to right across the pot and vertically up and down in said pot, (Fig. 5) in a path determined largely by the additional movement given to the pivotal bearing 13.

If said bearing 13 were held against movement longitudinally or transversely of the rod 10, then the path of motion of the ladle would be substantially elliptical. The diameter and shape of the elliptical path of travel a can be varied by varying the operative lengths of the crank 121 and of the rod 10 as above described. By positioning the end of the connecting rod 18 opposite the center of the shaft 22, no longitudinal movement of the connecting rod 18 results and the bearing 13 does not move except as transverse movement is given thereto by the cam 41. The combination of the elliptical movement of the ladle with the transverse movement resulting from the action of said cam, nonsynchronously with said elliptical movement, causes the ladle to reach all the points of an ordinary pot.

For unusual shapes of pots, the path of motion may be elongated horizontallyas at 66, Or vertically as at 68, by varying the lengths of the cranks 121 and 21 and of the rod 10 correspondingly.

It will also be seen that the motion of the crank 21 carries the bearing 13 from left to right and back in a horizontal path, since the link 15 is constrained to move horizontally between the guides 16 and 17 The result of the combined movements is that the ladle travels in the path 66 when the universal joints 53 and 10 are at the extreme outermost ends of their respective cranks 122 and 22. Similarly, if the universal joints 53 and are carried along the lead screws 130 and 30, in the manner hereinbefore described, to positions nearer the centers of the respective mafts 122 and 22, and the length of the rod 10 correspondingly adjusted, the path of motion of the ladle is reduced as shown at 67 Fig. 5 to fit a pot of an intermediate size as 59. Further shortening of the operative lengths of the cranks and of the stirring rod to the proper degree, results in the movement of the ladle in the path 68 suitable for the narrow deep pot as 58.

While the ladle 100 is traveling in the paths indicated, the air forced through the hollow rod 10, cools said rod and passes out, substantially, vertically through the molten metal, thereby agitating and purifying said metal.

It will be seen that owing to the peculiar path of motion given to the ladle, substantially every part of the pot is reached either by the ladle itself or by the escaping air, and that the contents of said pot must become thoroughly mixed with even more certainty than if hand paddling were resorted to.

It will also be seen that the end of the warning of any undue change in temperature is given.

It will be seen further that the entire ma chine may be shifted to any point on a floor,

and is readily adjusted for the mixing of metal in any one of a series of pots, and that if the paths of motion of the ladle ina complete cycle were joined by a warped surface, said surface would be an oblate irrotational ellipsoid.

It will be noted that when the crank 21 is adjusted to its extreme operative length for operation of a ladle in pots of the largest size, motion of guide 51 produces the maximum tranverse motion of the bearing 13 and of the ladle 100, since the guide 51 is nearest to the pivot of the universal joint 40, and that when the operative length of said crank 21 is lessened, the distance between the guide 51 and the pivot of said joint 10 being increased, transverse movement of the bearing 13 is automatically decreased, even though the stroke of the cam rod 49 and of the guide frame 51 is unchanged.

1 claim:

1. In mechanism of the character described, a stirring rod adjustable in length, a ladle at one extremity of said rod, and means for operating the other end of said rod in a circular path and means operating in a substantially spiral path engaging a portion, of said rod intermediate of said extremities for causing said ladle to stir a mixture by movement thereof along a different path on each revolution.

2. In mechanism of the character described, a stirring rod, an adjustable crank for rotating one end of said rod comprising a lead screw and means movable on said screw operatively connected to said rod, a pivoted bearing adapted to oscillate about a vertical axis slidably supporting said rod,

- length, a la adjustable means for reciprocating said bearing horizontally in one direction, and means for reciprocating said hearing in a subshnnially perpendicular direction nonsynchronously with said first mentioned bearing reciprocatory means.

3. In mechanism ot the character deserioed, a stirring rod, a ladle on said rod, a hearing for said rod in which said rod is slidable, means ;:or giving said ladle a subst ntially elliptic: l movement and means for giving said bearing reciprocatory movement l the elliptical move- 1 Lil ment of ladle.

ll In mechanism of the character described, a hollow stirring rod adjustable in die at one extremity of said rod, a hear g' slidz-illy supporting said rod, intermediate oi the ends 0'? said rod, means for rotating the other extremity of said rod, and means for reciprocating said bearii'ig transv rsely.

in. mechanism of the character described, a stirring rod, a lad e caried at one extremity 0t said rot, a bearing intermc' l diate ot the ends of saic rod, and ad ustable means for operating said rod to give said ladle a movement in a continuous path of whica the locus is substantially the surface of an oblate irrotational ellip oi l.

6. In niech nisn'i of the den ibed, a stirri rod adjustable ll length, a iity of said rod, a bearladle at one ext;

supporting said rod intermediate or the ends thereof, and means for givingsaid ladle stanially elliptical helical path having a n'ecetern'iined pitch on each revolution, compidsing adjustable means for rotating the other end of said rod, adjustable means for reciprocating said bearing substantially an adjustable scooning movement in a suhiorizontaily in one direction, and means for sii'miltaneonsiy reciprocating said bearing nOn-s nchrononsly horizontally in a direction substantially perpendicular to said first mentioned horizontal direction.

7. In a mechanism of the character descrihec, a stirring rod adjustable in length, aladle at one end 0" said rod, an adjustable crank ope atively connected to the other end of said rod a pivoted hearing slidabiy supporting aid rod, a crank adjustable in length operatively connected to said hea mg said bearing horizontally tor reciprocating in one direction, and cam operated means for reciprocating said bearing horizontally in a substantially pcrpendlcular direction.

8. In mechanism of the character described, a Sil11"lirod ad ustable in length, a

ladle at one extremity of slid rod, a crank oper lively connected to the other extremity of said rod, means "or varying; the operative lengtl said eranx, a i bearing; in vliich 391d rod is tulcrunicd, and means for sinniitz-neou lv gull-lg said hearing horirental -'*eiprocatory movements relatively non-s n'onous in two dire (ions substantial y ndicular.

9.111 mechanism of the character dei hollon stii ing rod, means for ro- 'l of '0 rod, a bearing slids means for recipro- '11 one directi n and rid hearing simultaneon ally perpendicular directi ic-an for giving; the other r iar movement, a 1novroe, and means for bodily rid pivot Slll'IUltEI-HGOUSlQJ in srantially perpendicular. nixing machine, a ladle.

various sizes and r ladle scooping mow pot, comprising a stirine in lc gth for carrying ant: opera ively connected to ole means for varying the 1 of said crank, a bearing tor said rod intermediate of the ends therett, means for constraining said bearing to move in a horizontal plane, a connectingrod opcrative' connected at one end thereof to said bearing, a cranl: ad ustably connected to the other end of said connecting rod,

n eans tor var-Fir the operative length of l sad last mentioned crank, and means for reciprocating said bearing substantially perpendicularfiv to sa d connecting rod.

t JJSliiPl-l ll. KONIGSBEHG.

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