US2107041A - Battery grid casting machine - Google Patents

Description

Feb. 1, 1938. A. H. LUHRMAN BATTERY GRID CASTING MACHINE Filed Aug. 10, 1956 4 Sheets-Sheet 1 fig w INVENTOR.

ALBERT H. LUHRMAN.

ATTORNEY.

eh i, 138. A. H. LUHRMAN 2,107,041

BATTERY GRID CASTING MACHINE Filed Aug. 10, 1956 4 Sheets-Sheet 2 Ill INVENTOR.

AL. H. LUHRMAN ATTORNEY.

Feb. 1, 1938. A. H. LUHRMAN BATTERY GRID CASTING MACHINE 4- Sheets-Sheet 3.

Filed Aug. 10, 1 936 INVENTOR. ALBERT .H. LUHRMAN BY 2% W ATTORIZJEY.

5 3 mm 00 mm m.

u MH Feb. 1, 1938. A. H. LUHRMAN 2,197,041

BATTERYGRID CASTING MACHINE Filed Aug. 10, 1936 '4 Sheets-Sheet 4' w. g 5 61 3333 w a Q 4 v e i m .I n Glkw-ARRKM I 5 I 3 s m 5 m M 3 3 "a 4 3 1 Z 1 m m m m m B O O O 1 8 l. 3 u.. a

INVENTOR.

ALBERT H. LUHRMAN'. FKZW ATTORNEY.

Patented leb. 1938 UNITED STATES PATENT .,()I""F I'CIE'.- 2,107,041 4 BATTERY can) CASTING MACHINE Albert H. -Luhrma n, Cincinnati, Ohio T @pplication August 10, 1936, Serial No. 95,171

3 Claims. (01. 22-57) My invention relates to an improved grid casting machine of the multiple type wherein a plu-' rallty of gridsare' automatically cast, ejected and.

conveyed out of the machine.-

The object of my invention is to provide "improved grid forming molds, improved means for opening and closing the molds, improved means for accurately delivering predetermined quan'ti ties of molten metal to the molds, improved means for ejecting the cast grids grids out of the machine.

A further object is to pro molds on each side of the lead and 4 conveying the vide a plurality of pot andalternately casting grids on each side of the machine and delivering said grids from the machine. 7

My invention will be further readily understood from the following description and claims, and from the drawings, in which latter:

Fig. 1 is a plan view of my improved machine.

Fig. 2 is a side view of the same, partly broken away. Fig. 3 is a vertical section in the plane of the line 3-3 of the same, taken of Fig. '1.

Fig. 4 is a detail section, taken in the plane of the line 44'of Fig. 2, showing the molds in open position, and

Fig. 5 is a detailed section of the lead pumps,

taken in the plane of the line 5-5 of Fig. 1.

My improved machine comprises a frame It constructed of suitable channels and angleirons arranged to support a central lead pot l2, which has suitable means in conjunction therewith for maintaining the lead or casting material in a molten state. On each side of the lead pot are a pair of channel irons II and 14, having suitable openings l5 and i6 therein.

extends across the machine and is suitably supported in bearings 2| and has segment gears 22 A cross shaft 20 which support is connected to a cross-bar 29 arranged to reciprocate in the openings l5.

On either side of the channels l3 and I4 are rods 30, supported in bearings 3| and having threaded connection with the cross-bar 29.

It will be noted that the segment gears 22 are positioned at right angles to each other to permit alternate movement to the respective bars 29 on each side of the machine. A suitable plurality of lead molds 32 are arrange ports II and on each side of the machine and comprisestationary parts 33 34, which are suitably secure d between the supflxed to cross-bars d to the frames l3 respective slides 29 for operating the pumps.-

and [4, while the complemental movable molds 35 are secured to cross-bars 36 being guided and slidable in the openings IS. 'The rods .30 extend through these cross-bars and have collars 3'! ar- 1, ranged to contact the cross-bars for moving the 5 movable molds endwise away from the station- Y ary-molds against the tension of springs 38 confined by collars 39.

Above each of the molds is provided a lead cup 40, pivoted on supports 4| and interconnected as by a bar 42 having a linkagegconnection 43 with a cam 44 mounted on the shaft 20. Suitable lead pumps 50 extend into the lead pot l2. A central shaft 5! is supported above the lead pot and has rocker arms 52 thereon for alternately pumping lead through the pumps 50, through tubes 53 into the lead cups 4!]. Adjustments are'provided for regulating the length of the stroke of the lead pump for pumping the exact quantity of lead to the lead cup necessary to form a complete grid. The shaft 5| has a rocker arm 54 securedto' one end thereof and said rocker arm has cables 55 connected to the respective slides 29 for rocking the shaft 5| on the forward movement of the The shaft 20 is suitably driven by a chain at received over sprocket wheel SI On the shaft 20 and about a sprocketwheel 52, extending from a speed change mechanism 53 which is driven by an electric motor.

Suitableconveyors 65 are supported below the molds on each side of the machine and are driven by sprocket chains 66 from the speed change mechanism. Slides 6! are arranged below the molds for guiding cast grids to the conveyor.

Suitable knock-out pins 10 are provided in the stationary mold, being connected to cross-bars I l, which bar's aresupported on studs 12 having springs 13 interposed between the bar and the mold support. The movable cross-bars 36 are provided with studs 14 arranged to contact a knock-out bar 1| when the molds are openfor causing the pin I0 to free the grid from the mold .33.

In the operation of my improved casting machine, the lead is alternately pumped to the respective lead cups on each side of the machine and as the molds close, the lead cups are tipped for pouring the lead into the molds and the molds remain ,in this position until the complemental gear segment causes rotation of the pinion gear 28 which rotation causes eccentric 25 to rotate, thus opening the molds. As the molds are open the casting is eiected,- slides-down the slide 01 to the conveyor 65 and is carried out of the ma- .one set of molds and their actuating parts, it will be apparent that all of the molds are similar in construction on both sides of the machine and are actuated in like manner.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

'1. In a casting machine, the combination of a lead pot, a plurality of pairs of complemental molds on each side of said lead pot, one part of each mold being stationary, the otherpart of each mold being mounted one; slide, a cross-shaft below said slides, a pair of segment gears alternately spaced on said shaft, shafts above said first-named shaft, pinion gears on said shafts arranged to be rotated by the respective segments, and crank arms on said second-named shafts having connection with said slides for opening'and closing said molds.

2. In a casting machine, the combination of a lead pot, a plurality ofpairs of complemental molds on each side of said lead pot, one part of each mold being stationary, the other part of'each mold being mounted on a slide, a cross-shaft below said slides, a pair of segment gearsalternately spac on said shaft, shafts above said firstnamed s aft, pinion gears on said shafts arranged to be rotated by the r p t v tments.

crank arms on said second-named shafts having connection with said slides for opening and 0108-,

ing said molds, and a lead cup pivoted above each of said molds and means for tipping said cups upon closing of said molds.

3. In a casting machine, the combination of a lead pot, a plurality of pairs of complemental molds on each side of saidlead pot, one part of each mold being stationary, the other part of each mold being mounted on a slide, a crossshaft below said slides, a pair of segment gears alternately spaced on said shaft, shafts above said first-named shaft, pinion gears on said shafts arranged to be rotated by the respective seg-- ments,'crank arms on said second-named shafts having connection with said slides for opening and closing said molds on the respective sides of said lead pot alternately,- a lead cup pivoted-above each of said molds, means for tipping said cups upon closing of said molds, means for releasing the castings upon opening of said, molds, and conveyors for .carrying said released castings out of said machine.

ALBERT H. LUHRMAN.

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