US1324886A - Mean s eos incbeasiktg she es stciencli osi eos-swaging machines - Google Patents

Description

C. EISLER.

MEANS FOR INCREASING THE EFFICIENCY OF HOT SWAGING MACHINES.

APPLICATION FILED MAR. 28. 1910.

1,324,886. Patented Dec. 16,1919.

WITNESSES: I INVENTOR ine-W Char/e6 [A's/er standard forms.

QETED he, 5

CHARLES EISLER, 0F IRVIX ZGTQEET, NEW JERSEY, "WESTING-EQUSE LAME GOMPAN'FZ, A GORPQRATION OF 1 3N255; LVhNEfL.

MEANS FOR INCREASING THE EFFIGIENGY @F EtiflT-SWAGING; MACHINES.

Specification of Letters Patent.

raeeneecnec. is, rare.

Application filed March 28, 1913. Serial No. 225,3W.

and useful Improvementin Means for In.-

creasing the Efiiciency of Hot-Swaging Ma.- chines, of which the following is a specificationn This invention relates to machines adapted for the hot swaging of metals and particularly to means for increasing the production capacity of swaging machines of this type.

In swaging machines now commonly in use, where metals and alloys thereof are worked in a hot state, the spindle carrying the rotative parts of the head including the swaging dies, becomes very hot. The heating-of this element greatly increases the wear thereon and the machine must be operated at a considerably lower speed than would be necessary if this heating effect were eliminated. It has heretofore been proposed to place water-cooled jackets upon the outside of swaging machines of. certain gives the machines a cumbersome appearance but do not function very efiicl'entl be.-

cause the cooling medium circulated tierethrough is not sufliciently close to the head shafts or spindles to be capable of exertmg any substantial cooling effect thereon;

It is one of the objects of this invention to provide means whereby the spindle carrying the swaging dies may be rapidly cooled, with a consequent decrease in wear and a resultant increase in production effected by an increase in the speed of operation of the machine. r

In accordance with this invention, a hollow chamber is provided as an integral part of the head of the swaging machine and is located in close proximity to the rotatire Spindle carrying the swaging dies. This chamber or jacket is provided with an inlet and an outlet positioned at points relatively close to each other and an intermediate barrier to insure a maximum circulating area for the water passing through the jacket. This construction affords a continuous circulation of water in close proximity to the spindle, whereby it may be rapidly cooled, thus reducing the wear thereon and simultaneously permitting the associated mechanism for operating Such devices. not only resulting in increased production.

The nature of the means by which the foregoing and other more specific objects of the invention are accomplished will appear from the following detailed descriptlon. or The invention is illustrated in the accomoperation thereof at a much higher speed, 1

panying drawings in which Figure 1 is an 7 elevation, partly in section, of a swaging machine embodying the invention; and Fig. 2 is an end front View of'the machine shown inFigl. p

Like reference characters refer to like partsthroughout the several figures.

In the machine shown inthe drawing, only-so much is illustrated as is thou ht necessary to disclose the invention. In t is disclosure is shown ahead portion 1-suit-- a'bly attached to asupporting base 2. The head portion 1 isprovidedwith a hollow shaft'or spindle 31 which is axially mounted within a cylindrical casting 4. Onthe right-hand. or front side of the head 1 are mounted the usual swaging dies and the the. same, these elements not being shown in detail, as they are well known to those skilled in the art. Onithe left-hand side of the spindle 3 is rigidly mounted '-a pulleyv 5 adapted to accommodate a belt for rotating the spindle The casting 4' is provided with a hollow chamberor jacket 6-which extends substantially the full distance around the inner portion of the casting and is positioned relatively close to the spindle 3. To reinforce the adjacent surfaces forming the jacket 6, strut members 7, preferably cast integral with thecasting 4, are located at convenient places, and one of these strut members may be provided with an aperture 8 leading from the exterior of the casting 4 to the interior thereof, said aperture being designed to function as an oil-cup for lubricating the spindle 3, when rotating.

ice I 1 and the work is passed through the mac ine in a heated condition from right to left.. As the work passes through the ma.

chine, on account of the action of the dies and their initial heated condition, consider able heat is conducted to that portion of the spindle 3 immediately followin or contiguous to the vswaging dies, with t e consequent efiect that this portion of the spindle isexcessively heated. If the spindle 3 were rotated at a very high speed, its tempera ture would be increased much more, in the absence of any cooling agency other than normal radiation, and, if the swaging machine were operated in this condition for any considerable length of time, the wear on the spindle 3 would be very great, resulting in high depreciation of it and adjacent parts which, in a short time, would necessitate replacement thereof, with the consequent loss in production due to the idleness of the machine during the time required for replacing the aforesaid parts. However, by means of the water-cooled jacket 6, located in close proximity to the spindle 3 and having suiiicient capacity to permit the circulation of a considerable volume of water over a relatively large area, the temperature of the spindle may be kept within safe operating limits, although rotated at as high speed as may be dictated by approved practice, considering the design of the parts comprising the swaging machine.

From the above description it will be apparent that the structure contemplated by this invention provides for a continuous circulation of water or other cooling liquid in closeproximity to the rotatable spindle carrying the swaging dies, which eifects the eflicient cooling of the said spindle, thereby decreasing the wear thereon, permitting the rapid rotation thereof, etc. It is obvious that, if my invention were embodied in a standard swaging machine, it would be possible to operate such modified machine at the speed for which it was originally designed and at a greatly reduced depreciation factor which would compensate for the diiference in production capacity when operated at this lower speed and at maximum speed, by resulting decrease in the cost maintenance and loss occasioned by idleness of Leeaeee the machine during repairs. In other words, the speed of operation may resolve itself into a question of continuous running at a fair speed, or interrupted running at an excessive speed, the determination of a par-' 'ticular speed being dependent upon a question of policy and the conditions of a given case. From experience I have learned that a standard form of swagin machine, .When modified in accordance wit my invention, may be operated continuously at 850 revolutions per minute, the speed for which it was originally designed, or the same machine may be operated at a speed of from 2700 to 3000 revolutions per minute, with a resultant greater depreciation factor than in the first instance.

While I have described my invention with reference to the specific embodiments shown, it is obvious that various changes in detail may be made without departing from the spirit and scope thereof.

Claims 1. A swaging machine having a Watercooled jacket formed internally of the machine head, and a spindle journaled within said head and arranged to be influenced by the cooling efi'ectof said acket.

2. In a swagingmachine, the combination with swaging dies and mechanism for actu ating the same, of a hollow spindle, means for rotatin the same, a water-cooled jacket integrally formed internally of the machine head and having an opposing surface in close proximity to said spindle, whereby the latter may be rapidly cooled.

3. In a swaging machine, a head, a watercooled jacket integrally formed internally of said head, a spindle journaled Within said head and arranged relatively close to the opposing surface of said jacket, whereby the said spindle may be cooled to good efiect.

4. In a swaging machine, a head, a watercooled jacket integrally formed internally of said head, a spindle journaled within said head and arranged adjacent one of the surfaces of said water jacket, supporting members for reinforcing the walls of said jacket, one of said supporting members being adapted to function as an oil passage to said spindle, and means for providing a con tinuous circulation of water through said j acket, whereby said spindle may be rapidly cooled.

In testimony whereof, I have hereunto subgcribed my name this 7th day of March, 191

CHARLES EisLE R.

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