US3479678A - Mold cleaner - Google Patents

Mold cleaner Download PDF

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Publication number
US3479678A
US3479678A US661402A US3479678DA US3479678A US 3479678 A US3479678 A US 3479678A US 661402 A US661402 A US 661402A US 3479678D A US3479678D A US 3479678DA US 3479678 A US3479678 A US 3479678A
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US
United States
Prior art keywords
mold
brushes
trolley
brush
framework
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US661402A
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English (en)
Inventor
Lyman W Jeffreys
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amsted Industries Inc
Original Assignee
Amsted Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amsted Industries Inc filed Critical Amsted Industries Inc
Application granted granted Critical
Publication of US3479678A publication Critical patent/US3479678A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B22C23/02—Devices for coating moulds or cores

Definitions

  • a rotary brush device is provided for scrubbing the casting cavity of a graphite mold.
  • Rotary brushes are attached to an overhead trolley, which guides the brushes through the open mold.
  • Pivotally mounted arms actuated by power cylinders are connected to the brushes for swinging the rotating brushes out against the internal mold surfaces and retracting the brushes after the cleaning operation has been completed.
  • a system is provided to direct a water spray against the area of the mold being cleaned.
  • an object of this invention is to provide a mold cleaning or scrubbing device that will remove mold washes and slag from at least a portion of the cavity defining surfaces of a mold.
  • Another object of this invention is the provision of a .mold cleaning device that is essentially automatic and self-adjusting during operation.
  • FIGURE l is an overall elevational view of the presently described invention.
  • FIGURE 2 is a top plan view of the device shown in FIGURE 1;
  • FIGURE 3 is a sectional elevational view taken along line 3 3 of FIGURE l;
  • FIGURE 4 is a detailed side elevational view of the cleaning apparatus shown generally in FIGURE 1;
  • FIGURE 5 is a sectional view taken along line 5 5 of FIGURE 4;
  • FIGURE 6 is a detailed end elevational view of the cleaning apparatus shown generally in FIGURE 1;
  • FIGURE 7 is a plan sectional view taken along line 7 7 of FIGURE 4, showing the brush driving apparatus in greater detail;
  • FIGURE 8 is a simplified schematic view illustrating the brush driving mechanism.
  • the mold cleaning device is supended from a gantry 11 comprising a pair of spaced horizontal beams 10 located above the mold, indicated generally at 12.
  • Beams 10 are separated by a plurality of transverse support elements 14 and are suppported at their ends in any convenient manner.
  • one end of beams 10 is supported by a pair of slightly inclined columns 16 secured at their base to a foundation frame 18 by gusset plates 20, and the other end of said beams is supported upon a transverse beam 22 secured by means of a gusset plate 24 to the framework 26 of the building.
  • a pair of rails 28 (FIGS. 2 and 3) are secured along the underside of beams 10.
  • a trolley 30 is provided for moving the cleaning device along the length of the spaced beams 10' and comprises a horizontally disposed rectangular frame 32 carrying rotatable wheels 36 near the corners thereof, said wheels resting upon the aforementioned rails 28 for rolling movement of the trolley.
  • Means are provided for moving the trolley 30 along the rails 28, such as motor 38 secured to the trolley in driving relationship by lmeans of a belt 40 with a shaft 42 journalled in said trolley, and a pinion gear 46 secured to each end of said shaft engaging toothed racks 48 (FIG. 3) secured along the spaced horizontal beams 10.
  • Trolley 30 also comprises a downwardly extending box framework 31 that includes four spaced vertical channel members 50 secured to the trolley rectangular frame 32 and interconnected by a plurality of braces 52.
  • the downwardly extending box framework 31 carries the rotatable cleaning brushes 54 and 55 as hereinafter described.
  • a motor 56 is secured to box framework 31 and is connected in a driving relationship by belts 58 to a pulley 59 driving a shaft 60 journalled within a plurality of bearings 62 secured to said framework.
  • Shaft 60 is connected by a spacer coupling ⁇ 64 to a gear box 66 to rotate two or more pulleys therefrom.
  • two pulleys 68 are provided at the top of gear box 66, one of which may be directly driven by shaft y60.
  • two main cylindrical brushes 54 are mounted vertically on box framework 31, said brushes each being secured to a shaft journalled at both ends in bearings 72.
  • Bearings 72 are held at the respective ends of a bracket 74 extending around the brushes S4 to form a unitary assembly with the brushes rotatable therein.
  • Each bracket 74 is secured to one end of one or more L-shaped arms 76 (FIGS. 5, 7 and 8), the other ends of said arms being pivotally mounted by bearings 78 on the box framework 31.
  • a pulley 80 is secured at the upper end of each brush shaft 70 and is operatively connected by a belt 82 to a respective gear box pulley 68.
  • Spring tensioned idler pulleys 84 may be provided on box framework 31 to engage the belts 82, in order to keep the drive system under proper operating tension.
  • the trolley motol 38 and the brush motor S6 are powered by iiexible cable means 86 3 (FIGS. 1-3) connected to the upper spaced horizontal beams 10.
  • the L-shaped arms 76 carrying the brush assembly are pivotally connected to the box framework and may thus swing the rotating brushes 54 out against the area of the mold to be cleaned.
  • Means are provided to actuate each of the arms 76 and may comprise a double acting pneumatic cylinder 88 as shown in FIGURE 7, said cylinder being pivotally connected between the box framework 31 and an arm 76.
  • t'he arms 76 are mounted at pivot points that are substantially coaxial Vwith their corresponding gear box pulleys 68. This arrangement allows the arms 76 to swing out without altering the tension on the belts 82.
  • a water spray system may be provided, comprising vertical lines 90 connected to a regulated source of supply by any convenient means.
  • a plurality of directional spray heads 92 are provided along lines 90 in a spaced relationship, in order to provide a spray over the entire vertical portion of the mold being scrubbed.
  • the spray system has been found effective to greatly minimize the dust that would otherwise be created during the scrubbing operation.
  • a spray line is provided at both sides of each brush 54.
  • a shut-off valve 94 may be provided at the top of each line 90 to facilitate repair should malfunctioning occur.
  • auxiliary brushes 55 may be provided to accommodate molds of greater heights.
  • the auxiliary brushes 5S are mounted on bearings 96 and connected to a pulley 98 driven by a belt 100 and pulley 102 from the underside of the gear box 66.
  • the bearings 96 are connected to one end of a pivotally mounted arm 104 (FIGS. 5 and 7) actuated by double acting power means 106, similarly to that arrangement hereinbefore described.
  • the open mold 12 is positioned under the framework of the cleaning device such that the center of the cavity and the centerline of the box framework 31 approximately coincide, as shown in FIGURE 3.
  • the .mold 12 comprises a pair of opposed side blocks 108 having yplanar inte-rnal surfaces, which, together with a top block 110, bottom block 112 and end block and ingate (not shown) define the casting cavity. Means are provided to move the side blocks 108 apart, and the mold shown in FIGURE 3 is shown in an open position. It should be understood that the internal surfaces of the side blocks 108 need not be planar, and the outer contour of the brushes may be designed to accommodate other continuous mold surfaces.
  • pneumatic cylinders 88 Upon entering the mold, pneumatic cylinders 88 are extended, thereby causing the brushes 54 to engage the planar surfaces of the side blocks 108, as best understood by viewing FIGURES 3 and 8.
  • Suitable means are provided to reverse the trolley whereby the cleaning device may reciprocate for as many cycles necessary to clean the mold. A reasonable trolley speed has been found to be in the neighborhood of 60 feet per minute, and about eight or ten passes (four or five complete cycles) are usually sufficient to clean the mold. The clean mold may then be moved from under the cleaning device for subsequent coating and casting.
  • Nylon brushes have also been used successfully in conjunction with means to cool the brushes.
  • a water supply may be connected to each brush shaft and orifices 112 (FIG. 7) may be provided along the length thereof for cooling the revolving brushes.
  • Cleaning apparatus for a mold wherein the mold includes two opposed vertical surfaces, comprising a trolley movable above said mold surfaces, a framework suspended from said trolley, at least one pair of arms pivotally mounted on said framework, means for swinging said arms outwardly and inwardly from said framework, brush means corresponding to said vertical surfaces and operatively connected to said arms, and means for rotating said brush means.
  • water spray means is provided in conjunction with said brush means, said water spray means including at least one line disposed vertically from said framework, a plurality of spray heads arranged along said line, and means for supplying water to said line.
  • said means for rotating said brush means comprises a shaft rotatably mounted in said framework, means for rotating said shaft, gear means associated with said shaft for rotating at least two pulleys, other pulleys connected to each of said brush means, and belt means for connecting said two pulleys to corresponding other pulleys.
  • each of said pulleys rotated by said gear means corresponds to one of said arms pivotally mounted on said framework and wherein the pivot axis of said arms is substantially coaxial with the pivot axis of corresponding pulleys rotated by said gear means.
  • said brush means comprises 0.004 inch diameter brass bristles having dulled ends.
  • said brush means comprises a loose canvas bufiing Wheel.
  • said brush means comprises nylon bristles, and means are provided for cooling said bristles during tbe operation thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US661402A 1967-08-17 1967-08-17 Mold cleaner Expired - Lifetime US3479678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66140267A 1967-08-17 1967-08-17

Publications (1)

Publication Number Publication Date
US3479678A true US3479678A (en) 1969-11-25

Family

ID=24653444

Family Applications (1)

Application Number Title Priority Date Filing Date
US661402A Expired - Lifetime US3479678A (en) 1967-08-17 1967-08-17 Mold cleaner

Country Status (11)

Country Link
US (1) US3479678A (pl)
AT (1) AT276648B (pl)
BE (1) BE706637A (pl)
CH (1) CH470224A (pl)
DE (1) DE1583523B1 (pl)
ES (1) ES347343A1 (pl)
GB (1) GB1193510A (pl)
GR (1) GR34792B (pl)
LU (1) LU54896A1 (pl)
NL (1) NL6715586A (pl)
SE (1) SE327263B (pl)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133748A1 (de) * 1970-07-24 1972-01-27 Italtrade Verbesserte Presse zum Pressen von plastischen Materialien, Gummi und dergleichen
US4469043A (en) * 1982-12-07 1984-09-04 The Kohler Coating Machinery Corporation Cleaning mechanism for coating control fluid nozzle
US4578837A (en) * 1984-10-12 1986-04-01 Hamilton Equipment Company, Inc. Apparatus for cleaning tee forms
US4983115A (en) * 1987-10-19 1991-01-08 Mitsubishi Denki Kabushiki Kaisha Molding apparatus for sealing semiconductor devices including a mold cleaning device
US5053172A (en) * 1987-10-19 1991-10-01 Mitsubishi Denki Kabushiki Kaisha Method of cleaning semiconductor molding apparatus
US20040194239A1 (en) * 2001-06-27 2004-10-07 Macdonald Ronald Anthony Container washing apparatus
US20050235441A1 (en) * 2004-04-23 2005-10-27 Ennis G T Delay and accelerating mechanism for a wrap-around brush assembly in a vehicle washing apparatus
US20090282629A1 (en) * 2008-05-16 2009-11-19 Fmc Technologies, Inc. Produce bin scrubber and related methods
EP4043173A1 (en) * 2021-02-15 2022-08-17 Klingspor Windpower Aps Device for treating a mold surface and use of the device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233264A (en) * 1963-05-28 1966-02-08 Hermann Wohrl Apparatus for washing motor cars and the like
US3304565A (en) * 1964-05-16 1967-02-21 Bowe Bohler & Weber K G Cleaning installations for vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673363A (en) * 1950-01-19 1954-03-30 Theodore A Repper Ingot mold cleaning device and brush
DE1902657U (de) * 1963-03-27 1964-10-22 Fernando De Lellis Expansions-buerstvorrichtung zum reinigen von kokillen.
FR1449104A (fr) * 1964-07-14 1966-03-18 Appareil de moulage des métaux

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233264A (en) * 1963-05-28 1966-02-08 Hermann Wohrl Apparatus for washing motor cars and the like
US3304565A (en) * 1964-05-16 1967-02-21 Bowe Bohler & Weber K G Cleaning installations for vehicles

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133748A1 (de) * 1970-07-24 1972-01-27 Italtrade Verbesserte Presse zum Pressen von plastischen Materialien, Gummi und dergleichen
US4469043A (en) * 1982-12-07 1984-09-04 The Kohler Coating Machinery Corporation Cleaning mechanism for coating control fluid nozzle
US4578837A (en) * 1984-10-12 1986-04-01 Hamilton Equipment Company, Inc. Apparatus for cleaning tee forms
US4983115A (en) * 1987-10-19 1991-01-08 Mitsubishi Denki Kabushiki Kaisha Molding apparatus for sealing semiconductor devices including a mold cleaning device
US5053172A (en) * 1987-10-19 1991-10-01 Mitsubishi Denki Kabushiki Kaisha Method of cleaning semiconductor molding apparatus
US20040194239A1 (en) * 2001-06-27 2004-10-07 Macdonald Ronald Anthony Container washing apparatus
US20050235441A1 (en) * 2004-04-23 2005-10-27 Ennis G T Delay and accelerating mechanism for a wrap-around brush assembly in a vehicle washing apparatus
US7293315B2 (en) 2004-04-23 2007-11-13 Ennis G Thomas Delay and accelerating mechanism for a wrap-around brush assembly in a vehicle washing apparatus
US20090282629A1 (en) * 2008-05-16 2009-11-19 Fmc Technologies, Inc. Produce bin scrubber and related methods
US7979941B2 (en) 2008-05-16 2011-07-19 John Bean Technologies Corporation Produce bin scrubber and related methods
US20110220145A1 (en) * 2008-05-16 2011-09-15 John Bean Technologies Corporation Produce bin scrubber and related methods
US8566994B2 (en) 2008-05-16 2013-10-29 John Bean Technologies Corporation Produce bin scrubber and related methods
US9873143B2 (en) 2008-05-16 2018-01-23 John Bean Technologies Corporation Produce bin scrubber and related methods
EP4043173A1 (en) * 2021-02-15 2022-08-17 Klingspor Windpower Aps Device for treating a mold surface and use of the device

Also Published As

Publication number Publication date
AT276648B (de) 1969-11-25
LU54896A1 (pl) 1968-02-08
BE706637A (pl) 1968-04-01
GB1193510A (en) 1970-06-03
ES347343A1 (es) 1969-02-01
GR34792B (el) 1968-06-27
DE1583523B1 (de) 1970-08-20
CH470224A (de) 1969-03-31
SE327263B (pl) 1970-08-17
NL6715586A (pl) 1969-02-19

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