US2649630A

US2649630A - Machine for the recovery of used foundry sand

Info

Publication number: US2649630A
Application number: US181637A
Authority: US
Inventors: Jr John W Thomley
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-08-26
Filing date: 1950-08-26
Publication date: 1953-08-25
Anticipated expiration: 1970-08-25

Description

A g 1953 J. w. THOMLEY, JR

MACHINE FOR THE RECOVERY OF USED FOUNDRY SAND Filed Aug. 26, 1950 3 Sheets-Sheet 1 JOHN WTHOMLEY JR.

INVENTOR.

Aug. 25, 1953 J. w. THOMLEY, JR

MACHINE FOR THE RECOVERY OF USED FOUNDRY SAND 3 Sheets-Sheet 2 Filed Aug. 26, 1950 NN n i l. NNN om Q JOHN W THO/"ILEY JR.

INVENTOR.

Aug. 25, 1953 J. w. THOMLEY, JR

MACHINE FOR THE RECOVERY OF USED FOUNDRY SAND 3 Sheets-Sheetv 3 Filed Aug. 26 1950 INVENTOR.

hm MW WV mm @n I m \n JOHN 'WTHOMLEY JR.

MFQ Nv wn w mm 9 E i L i km NW latented Aug. 25, 1953 MACHINE FOR THE RECOVERY OF USED FOUNDRY SAND John W. Thomley, Jr., Decatur, Ill.

Application August 26, 1950, Serial No. 181,637

3 Claims.

The present invention relates to a machine for mass recovery of sand which has been used for foundry moulding purposes, and has more particularly to do with a machine of this type adapted for lump breaking, disintegrating and aerating such sand.

To facilitate economical and convenient handling and reclaiming of sand broken from the mould after the casting operation is completed, the invention contrives to enable the mould flask to be discharged directly upon a vibratory assembly which breaks apart any adherent lumps of sand, admitting the smaller particles thereof to a suitable conveyor belt arrangement, thus accomplishing an important object.

Another important object is accomplished by provision of a series of diffusing discs adapted for the further disintegration and heat-freeing of the sand.

A further object is to provide a machine which is continuously automatic in operation from the loading end to the discharge end thereof and serves to reclaim and prepare used foundry sand for-repeated use.

Other objects and advantages of the present invention will appear from the following detailed description which refers to the accompanying drawings by like reference numerals for like parts. I

In the drawings:

Figure 1 is an elevational view of the machine as it is normally positioned for use.

Figure 2 is a top plan view of the machin illustrated in Figure 1.

Figure 3 is a side elevational view showing the opposite side from that shown in Figure 1.

Figure 4 is a sectional view taken on the line 4-4 of Figure 2, the motor element being shown in elevation.

Figure 5 is a bottom plan view showing the opposite face from that illustrated in Figure 2, and,

Figure 6 is a view partly in section and partly in elevation taken laterally of the machine on the line 5-45 of Figure 2.

In general, foundry characteristics with respect to arrangement, operation, and the handling of various necessary machinery, tools and materials are well known and obvious to those skilled in the art, and the following description Referring first to the Figures 1, 2, 4 and 6,

there is illustrated one form of apparatus for practising this invention comprising the main body I0, being of general channel formation elongated from an open hopper loading end to a discharge end. Mounted on the loading end is a loading hopper carrying a vibratory assembly hereinafter described.

The main body portion In is mounted on a pair of channel members ll integrally engaging the opposite edge portions on the lower face of the body It and extending 'along substantially the length thereof, the flanged side of the members l-i facing inwardly toward each other. The channel members I l are in turn integrally mounted upon a pair of similar although relatively shorter channel members [2 at'the discharge end of the body It] with their flanged sides facing outwardly away from each other. Mounted on the lower face of the channel members 12 and at the ends toward the loading end of the device is a pair of downwardly projecting weblike wheel supports [3 engaging the laterally disposed axle M on the opposite ends of which are mounted the Wheels [5.

As shown, the device is adapted for use upwardly inclined toward the discharge end, which, for conciseness, may hereinafter be termed the frontend, while the loading end may be termed the rear end.

It will be noted that the upper portion of the rear end of the body [0 is tapered to a depth of approximately one-half its height as at A and that the length of said taper comprises the longitudinal dimension of the base opening of the hopper l6 while the lateral dimension of said base opening is determined by the width of said body l0.

The upwardly flaring walls of the hopper I6 as illustrated, effect the rearwardly overhanging arhopper, as a certain amount of the load is held by the inclined wall [6a of the hopper, thus enabling a substantially steady and gradual feeding of sand to the conveyor assembly which will later be explained. The upper vertical wall portion 16b of the hopper extends along two lateral side edges and one longitudinal side edge of the hopper top, enabling the workmen to dump the loaded sand flask into the hopper from one side of the sand as it is forcibly ejected from the machine by said drum element as above described, although in the Figure 2 the hood 55 is shown in fragment only, to facilitate a clearer showing of the drum element, and the hinge 5% is omitted for the same reason. Likewise, the hood 55 is omitted from Figure 5 as well for the same reason.

oppositely disposed side shield portions 51 are mounted on the body it adjacent said drum element to span the gap between the end of the body In and the hood 55.

It is noted that the normal operating position of the machine is as illustrated in the drawings and that it is only necessary to raise the rear or loading end thereof to enable it to be conveniently wheeled to any suitable location in the foundry.

Without further description it is believed that this invention is clearly understandable from the foregoing, and although the apparatus is some-- what specifically described and illustrated, it is to be understood that other combinations and arrangements of parts may be used by others in practising the invention without departing from the scope hereof.

Reference should be had to the appended claims to determine the scope of the invention.

What is claimed is:

1. In a machine of the type herein described with the loading end and discharge end, said 9 sand conveying means being under the vibrating means, sand diffusing disc means carried by said body over said conveying means, sand ejecting means mounted adjacent the discharge and of said body, means carried on said body adjacent said sand ejecting means to direct the throw of the sand from the said ejecting means, contained automatic electric motivating means carried by the machine for operating the same, and water spraying means mounted on said body for wetting down the sand as it is carried therethrough in practice.

2. In a machine of the type herein described comprising in combination an elongated body portion having a loading end and a discharge end, hopper means carried on said loading end,

sand vibrating means mounted in said hopper means, sand conveying belt means mounted in said body and connected with the loading and discharge ends thereof, adjustable sand diffusing disc means carried by said body and positioned above in proximity with said sand conveying belt means, sand ejecting means mounted adjacent the discharge end of the body, blade members on said sand ejecting means for effecting the throw of the sand, means carried on said body adjacent said sand ejecting means to direct the throw of the sand therefrom, electric motor means carried by the machine for the operation thereof, water spraying means mounted on said body adjacent its loading end for wetting down the sand as it is conveyed through the machine in practise, and wheel members carried by the machine for enabling its movement to suitable locations for use.

3. In a machine of the type herein described comprising in combination an elongated body portion having a loading end and a discharge end, hopper means carried on said loading end, sand vibrating means mounted in said hopper means, sand conveying belt means mounted in said. body below said hopper connecting the loading and discharge ends thereof, means for cooling the sand on the discharge means comprising a wetting means mounted over the belt conveying means to discharge a cooling medium on the sand on the conveyin belt and sand diffusing disc means carried by the side or the body in contact with the sand moving with the conveyor.

JOHN VJ. TI-IOMLEY, JR.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,718,684 Reed June 18, 1929 1,999,673 Weber Apr. 30, 1935 2,166,742 Hinkle Feb. 1, 1938 2,168,515 Davies Aug. 3, 1939 2,206,164 Davies July 2, 1948 2,267,677 Baxter Dec. 23, 1941 2,273,126 McGillin Feb. 17, 1942 2,488,381 Davies Nov. 15, 1949 FOREIGN PATENTS Number Country Date 247,883 Great Britain Feb. 25, 1926 513,516 Germany Nov. 28, 1930