US 1910015 A
Description (OCR text may contain errors)
May 23, 1933. L. H. HOMAND 1,910,015
COOLING MOLD Filed Aug. 19. 1930 2 Sheets-Sheet l ukh\\\\\\\\\\\\\\\\\\\\\\\n\\\\\\\\ 7mu|r May 23, 1933. L. H. HOMAND COOLING MOLD Filed Aug. 19. 1950 2 Sheets-Sheet 2 Patented May 23, 1933 UNITED STATES PATENT orrlcia'.
mo a. noun), or mean, mwn, assrenoa worm: imw raocass cas'rrns 001mm, or summon, auannm, a coaroaa'rron or mm coonnm roan The present invention relates to improvements in cooling molds and relates more par- .ticularly to an improved cooling mold for die casting and permanent molds.
An object of the invention is to provide coolin means for the molds whereby to rapidly issipate the heat and to provide for quicker and more economicalcooling of the molds.
A further object of the invention is to provide cooling fins upon the mold back or upon other parts of the mold in such numbers and sizes as to take care of the degree of heat encountered in connection with any partic- 15 ular industry:
With the foregoing and other objects in view the inventionwill be more fully described hereinafter and more particularly pointed out in the appended claims.
In the drawings,'in whichlike reference symbols refer to like or corresponding parts throughout the several views,
Fig. 1 is a perspective view of an improved mold back constructed in accordance with as the present invention.
Fig. 2 is a longitudinal section taken therethrough.
Fig. 3 is a similar section showing a slight modification.
Fig. 4 is a plan view showing a further modification.
Fig. 5 is a fragmentary section taken on an enlarged scale and showing a modified form of mounting of the fins, and as Fig. 6 is a similar view showing still another modified form of attaching the fins.
Referring more particularl to the drawings and for the-present to F1gs."1 and 2, 10 designates a mold back provided with an appropriate pattern, which however forms no part of the present'invention, and with the other equipment usually found upon mold backs for cooperating with the other mold parts.
In accordance with the present invention there is molded directly upon such mold back cooling fins. 11 in such numbers, length and sizes as may be required to properly dissipate the heat. It is preferred that these 50 cooling fins 11, which are spaced apart map- '11 carried ther propriate distance, be cast upon a late 12 and this plate is in turn cast with t e mold back 10. The plate 12 and the cooling fins e y are of any appropriate material and it is preferred that at the bases of the fins 11 the shall be of thicker section, which section s all progressively decrease outwardly toward the free ends of the fins. In other words,'the fins are of wedgecross section, tapering toward their outer edges in order to facilitate the radiation of the heat.
In accordance with Fig. 3 a plate 12a is employed to carry the cooling fins 11, and this late is separate and disti "from the mold ack 10, being secured the eto by the screws or other fastenings 13. In this case the plate 12a and the fins 11 may be cast as a unit and independently from the mold back 10 and be afterwards assembled thereon. However, by reason of the separate materials 70 from which made, it is probable that the transference of heat'between the mold back 10 and the plate 120 will not be as free and quick as between the plate 12 and the mold back as shown in Figs. 1 and 2'where these parts are cast integral.
Whereas, in Figs. 1 and 2, the cooling fins 11 are shown as extending transversely of the mold back 10, in Fig. 4 I show the cooling fins 11a extending longitudinally of the mold back. It is understood that they can be made to extend. in any desired direction, either longitudinally, transversely or diagonally.
Also, some of the fins may be thick and some thin, some high and some low-in order to increase or decrease the cooling effect of the cooling area.
As shown more particularly. in Fi 5 a modified form of mold back 10a or p ate is shown having T-tracks or slots 14 adapted to receive theflanged bases 15 of modified cooling fins 116. These flanged bases 15 may be slid in from one end of the slots or tracks 14.
In accordance with Fig. 6, the-mold back or plate 10?) is provided with tracks or slots 16 of a shape to conform to the dove-tail bases 17 of the cooling fins 11c.
It will of course be understood that the fins may be mounted in a variety of other ways.
. From the foregoing it will be appreciated that cooling fins may be mounted upon the mold back or upon other parts of the molds in such relation, sizes and numbers as will adeguately conduct off the heat and cool the mol s.
Having thus described the invention, what is claimed as new is:
1. An improved cooling mold comprising a mold back provided with undercut closely spaced parallel surface grooves occupying substantially the entire area of one side of the mold back, wedge shaped heat-disseminating .fins having abruptly widened heat collecting rear portions conforming to the cross section of and snugly fitting in said grooves, the heat collecting rear portions of adjacent fins closely approaching one another whereby to directly intercept practically all outwardly moving heat, and discharge a maximum volume to the outer Wedge shaped portions, and the wedge shaped exterior portions of said ribs enabling said heat to be readily disseminated despite the close proximity of the ribs to one another.
2. An improved cooling mold comprising a mold back provided with closely spaced substantially parallel surface grooves occupying substantially the entire area of one side of the mold back, heat disseminating fins having abruptly widened heat-collecting rear portions seated in said grooves, said mold back having portions overhangingsaid grooves to hold said fin bases in said grooves, theheat collecting rear portions of adjacent fins closely approaching one another whereby to directly intercept practically all outwardly moving heat, and discharge a maximum volume to the outer portions of said fins.
In testimony whereof I hereunto affix'my signature.