US3760866A - Apparatus for making sand molds - Google Patents

Apparatus for making sand molds Download PDF

Info

Publication number
US3760866A
US3760866A US00171535A US3760866DA US3760866A US 3760866 A US3760866 A US 3760866A US 00171535 A US00171535 A US 00171535A US 3760866D A US3760866D A US 3760866DA US 3760866 A US3760866 A US 3760866A
Authority
US
United States
Prior art keywords
mold
mold chamber
chamber means
side walls
pattern carrier
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
US00171535A
Inventor
S Larkin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3760866A publication Critical patent/US3760866A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed

Definitions

  • ABSTRACT A machine for making sand molds having a pair of vertically reciprocable mold chambers, a horizontally guided reciprocable pattern carrier movable into and out of the space between the mold chambers, and one plate each in the mold chambers, which are vertically movable within the respective mold chamber independently of the movement ofthe mold chamber for expelling the finished mold from the mold chambers.
  • FIG. 1 is a vertical section through an apparatus for making molds, in accordance with the present invention, in its starting position;
  • FIG. 2 is a section similar to that of FIG. 1, but showing the machine during the process of blowing sand into the closed mold chambers;
  • FIG. 3 illustrates the apparatus according to FIGS. 1 and 2 during compacting of the sand within the closed mold chambers
  • FIG. 4 is a section similar to those of FIGS. 1 to 3, but showing the machine during removal of the pattern carrier from the separated mold halves;
  • FIG. 5 shows the machine in a position in which the two previously separated mold halves have been placed upon each other
  • FIG. 6 illustrates the operating step following that illustrated in FIG. 5, in which the two mold halves, placed upon each other, are being removed from the mold making machine;
  • the apparatus shown therein comprises a machine frame 2 with a top supporting beam 4 and a bottom supporting beam 6.
  • Top and bottom beams 4 and 6 have respectively connected thereto hydraulic cylinder piston systems 8 and 10, with pistons 12 and 14 respectively.
  • Piston 12 has connected thereto a rectangular supporting plate 16 which in turn has extending therefrom four support rods or beams 18, respectively placed adjacent the corners of the rectangular plate 16.
  • Beams or rods 18 have suspended therefrom a box-like structure 20 confining a chamber 22, for a purpose to be described later.
  • piston 14 supports a rectangular plate 24 carrying four beams or rods 26 which have connected thereto a box-like structure 28 confining a chamber 30.
  • Chambers 22 and 30 have provided therein plates 32 and 34 respectively:
  • Plate 32 may be actuated by two cylinder piston systems 36 and 38, extending with pistons 40 and 42 through the bottom wall 44 of box 20, for a purpose to be described later.
  • plate 34 is operatively connected to two cylinder piston systems 46 and 48, via pistons 50 and 52 extending through connecting wall 54 joining side walls 28' of box-like structure 28.
  • the machine frame 2 is provided with two grooved guide rails 56 and 58 (See FIGS. 1 and 7), on opposite sides of the machine frame for guiding and carrying in the grooves 60 and 62 thereof a pattern carrier 64 which isreciprocable in the grooves 60, 62 by means of a cylinder piston system 66.
  • Carrier 64 has mounted thereon patterns 68 and 70.
  • the apparatus is in the position shown in FIG. 1 in which the two box-like structures 20 and 28 are spaced apart and the pattern carrier 64 is centered therebetween.
  • the cylinder piston systems 8 and 10 are actuated, thereby respectively lowering and lifting the boxes 20 and 28 so that the patterns 68 and 70 are received within chambers 22 and 30, respectively.
  • molding sand is blown through flexible hoses 72 and 74 into the chambers 22 and 30 (FIG. 2). Air within the chambers may escape through a series of venting holes diagrammatically illustrated at 73, which are small enough to prevent sand from leaving the chambers.
  • the cylinder piston systems 8 and 10 move boxes 20 and 28 apart to permit removal of pattern carrier 64 with patterns 68 and 70 from the space between the chambers 22 and 30, in the direction of arrow 76, by means of cylinder piston system 66.
  • cylinder piston systems 46 and 48 are actuated to move plate 34 with mold half thereon out of chamber 30.
  • cylinder piston system 8 for moving box 20 is actuated in downward direction, and independently thereof the cylinder piston systems 36,38 for moving plate 32 are actuated as shown in FIG. 5. In this manner, upper mold half 78 is freed from chamber 22 and deposited on mold half 80.
  • cylinder piston system 8 is actuated to move box 20 upwardly into the position illustrated in FIG. 6.
  • plate 32 is moved upwardly.
  • the top of plate 34 is approximately level with a table 82 and beneath the lowest point of pattern 70. This permits the cylinder piston system 66 to move the carrier 64 to the left into contact with the sand mold halves 78 and 80 and thereafter to move the latter by means of the carrier 64 onto the table 82, without interferring with plate 34.
  • carrier 64 is moved back to the central position illustrated in FIG. 1, plate 34 is lowered to the position adjacent bottom wall 54 of box 28, as likewise shown in FIG. 1, and the machine isready for a new cycle of operation.
  • One of the major problems that has been solved by the arrangement according to thepresent invention is the relatively easy removal of the mold halves from the mold chambers 22 and 30 by the provision of plates 32 and 34 within the chambers. By slightly tapering the walls of the mold chamber, this process can be further facilitated.
  • Another important feature of the invention is the provision of the pattern carrier 64 in substantially horizontally extending grooves, and the use of the pattern carrier for moving the finished mold out of the machine.
  • An apparatus for making sand molds comprising: two mold chamber means, each having side walls and a connecting wall; a chamber in each of said mold chamber means being defined by inner surfaces of said side walls and said connecting wall and with each of said chambers being open opposite the inner surface of each respective connecting wall; first fluid motor means for moving said mold chamber means toward and away from each other in a first plane; plate means respectively reciprocably mounted in said mold chamber means; pattern carrier means movable substantially only in a second plane transverse to said first plane, from a first position remote from said mold chamber means to a second position between said mold chamber means; said pattern carrier having a side wall configuration on each side thereof conforming to the side walls of said mold chamber means and the side walls of said pattern carriage being spaced apart respectively slightly less than the spacing between the side walls of said mold chamber means, said side walls on each side of said pattern carrier in said second position being received within the side walls of said two mold chamber means with at least a portion thereof being confined within the enclosing side walls of said two mold chamber means; said mold chamber means in

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

A machine for making sand molds having a pair of vertically reciprocable mold chambers, a horizontally guided reciprocable pattern carrier movable into and out of the space between the mold chambers, and one plate each in the mold chambers, which are vertically movable within the respective mold chamber independently of the movement of the mold chamber for expelling the finished mold from the mold chambers.

Description

United States Patent [191 Larkin [451 Sept. 25, 1973 APPARATUS FOR MAKING SAND MOLDS [76] Inventor: Sam Larkin, 254 Beach 140th St.,
Belle Harbor, NY.
[22] Filed: Aug. 13, 1971 [21] Appl. No.: 171,535
U.S. Cl 164/200, l64/207, 164/213 Int. Cl. B22c 15/28 Field of Search 164/200, 190, 201, 164/131, 188, 191, 198, 401-404, 202-229, 29, 30, 37-40, 187, 160, 172, 173, 180, 182; 249/74 [56] References Cited UNITED STATES PATENTS 1/1971 Buhler 164/182 X 10/1911 Duncan 164/212 6/1912 Monahan el al 164/213 4/1923 MacNeill 164/211 2,008,725 7/1935 Parker 249/74 2,672,664 3/1954 Sudziarski.... 164/207 X 2,867,870 l/l959 Hines 164/29 3,107,402 10/1963 Hunter 164/201 X 3,431,968 3/1969 Eichenberger... 164/207 X 3,609,799 10/1971 Lee 249/74 X Primary ExaminerJ. Spencer Overholser Assistant Examiner.lohn S. Brown Artomey Robert Osann et a1.
[57] ABSTRACT A machine for making sand molds having a pair of vertically reciprocable mold chambers, a horizontally guided reciprocable pattern carrier movable into and out of the space between the mold chambers, and one plate each in the mold chambers, which are vertically movable within the respective mold chamber independently of the movement ofthe mold chamber for expelling the finished mold from the mold chambers.
3 Claims, 7 Drawing Figures PATENTED SEPZS I973 SHEET 1 OF 2 INVENTOR 54M l/IR/f/A/ PAIENTEnsms'mn SHEET 2 0F 2 INVENTOR. 5AM Mew/v APPARATUS FOR MAKING SAND MOLDS BACKGROUND OF THE INVENTION The present invention relates to an apparatus for making sand molds, and more specifically is concerned with an apparatus of this type which is adapted for automatic operation.
It is an object of the present invention to provide an apparatus for making sand molds which is simpler in design and operation, and lower in cost than heretofore known apparatus for making sand molds.
It is still another object of the present invention to provide an apparatus for making sand molds, which achieves the production of sand molds in a considerably reduced numbers of steps compared to heretofore known such apparatus.
BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated by way of example in the attached drawings, in which:
FIG. 1 is a vertical section through an apparatus for making molds, in accordance with the present invention, in its starting position;
FIG. 2 is a section similar to that of FIG. 1, but showing the machine during the process of blowing sand into the closed mold chambers;
FIG. 3 illustrates the apparatus according to FIGS. 1 and 2 during compacting of the sand within the closed mold chambers;
' FIG. 4 is a section similar to those of FIGS. 1 to 3, but showing the machine during removal of the pattern carrier from the separated mold halves;
FIG. 5 shows the machine in a position in which the two previously separated mold halves have been placed upon each other;
FIG. 6 illustrates the operating step following that illustrated in FIG. 5, in which the two mold halves, placed upon each other, are being removed from the mold making machine;
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT Referring now to the drawing in detail, the apparatus shown therein comprises a machine frame 2 with a top supporting beam 4 and a bottom supporting beam 6. Top and bottom beams 4 and 6 have respectively connected thereto hydraulic cylinder piston systems 8 and 10, with pistons 12 and 14 respectively. Piston 12 has connected thereto a rectangular supporting plate 16 which in turn has extending therefrom four support rods or beams 18, respectively placed adjacent the corners of the rectangular plate 16. Beams or rods 18 have suspended therefrom a box-like structure 20 confining a chamber 22, for a purpose to be described later.
Similarly, piston 14 supports a rectangular plate 24 carrying four beams or rods 26 which have connected thereto a box-like structure 28 confining a chamber 30.
Chambers 22 and 30 have provided therein plates 32 and 34 respectively: Plate 32 may be actuated by two cylinder piston systems 36 and 38, extending with pistons 40 and 42 through the bottom wall 44 of box 20, for a purpose to be described later. Similarly, plate 34 is operatively connected to two cylinder piston systems 46 and 48, via pistons 50 and 52 extending through connecting wall 54 joining side walls 28' of box-like structure 28.
The machine frame 2 is provided with two grooved guide rails 56 and 58 (See FIGS. 1 and 7), on opposite sides of the machine frame for guiding and carrying in the grooves 60 and 62 thereof a pattern carrier 64 which isreciprocable in the grooves 60, 62 by means of a cylinder piston system 66. Carrier 64 has mounted thereon patterns 68 and 70.
OPERATION OF THE APPARATUS At the start of the machine cycle, the apparatus is in the position shown in FIG. 1 in which the two box- like structures 20 and 28 are spaced apart and the pattern carrier 64 is centered therebetween. Thereupon, the cylinder piston systems 8 and 10 are actuated, thereby respectively lowering and lifting the boxes 20 and 28 so that the patterns 68 and 70 are received within chambers 22 and 30, respectively. From a source not shown in the drawing, molding sand is blown through flexible hoses 72 and 74 into the chambers 22 and 30 (FIG. 2). Air within the chambers may escape through a series of venting holes diagrammatically illustrated at 73, which are small enough to prevent sand from leaving the chambers. It is to be understood that the showing of flexible hoses 72 and 74 is diagrammatic only and that these hoses may be introduced into the chambers at any convenient location, in order not to interfere with the operation of the machine. Of course, also a plurality of such sand introducing hoses may be provided at each chamber 22,30.
Subsequent to the introduction of sand into the chambers 22 and 30, the sand is compacted around the patterns 68 and 70 by further actuation of the cylinder piston systems 8 and 10, as illustrated in FIG. 3.
In a subsequent operating step, illustrated in FIG. 4, the cylinder piston systems 8 and 10 move boxes 20 and 28 apart to permit removal of pattern carrier 64 with patterns 68 and 70 from the space between the chambers 22 and 30, in the direction of arrow 76, by means of cylinder piston system 66.
Thereupon, the cylinder piston systems 46 and 48 are actuated to move plate 34 with mold half thereon out of chamber 30. Also, cylinder piston system 8 for moving box 20 is actuated in downward direction, and independently thereof the cylinder piston systems 36,38 for moving plate 32 are actuated as shown in FIG. 5. In this manner, upper mold half 78 is freed from chamber 22 and deposited on mold half 80.
In a subsequent operation, cylinder piston system 8 is actuated to move box 20 upwardly into the position illustrated in FIG. 6. As also shown in FIG. 6, plate 32 is moved upwardly. Thus, the upper half of the apparatus, comprising chamber 20, plate 32 and the cylinder piston system 8, and 36,38 associated therewith, occupy their FIG. 1 starting positions. The top of plate 34 is approximately level with a table 82 and beneath the lowest point of pattern 70. This permits the cylinder piston system 66 to move the carrier 64 to the left into contact with the sand mold halves 78 and 80 and thereafter to move the latter by means of the carrier 64 onto the table 82, without interferring with plate 34. Thereafter, carrier 64 is moved back to the central position illustrated in FIG. 1, plate 34 is lowered to the position adjacent bottom wall 54 of box 28, as likewise shown in FIG. 1, and the machine isready for a new cycle of operation.
One of the major problems that has been solved by the arrangement according to thepresent invention is the relatively easy removal of the mold halves from the mold chambers 22 and 30 by the provision of plates 32 and 34 within the chambers. By slightly tapering the walls of the mold chamber, this process can be further facilitated.
Another important feature of the invention is the provision of the pattern carrier 64 in substantially horizontally extending grooves, and the use of the pattern carrier for moving the finished mold out of the machine.
These and other features of the apparatus, as evident from the preceding description, yield a sand molding machine that is simple to operate, efficient in operation requiring a reduced number of operating steps to produce a sand mold.
It is to be understood that the invention is not limited to the specific example illustrated in the drawing and described above, but comprises any modification within the scope of the appended claims.
I claim:
1. An apparatus for making sand molds comprising: two mold chamber means, each having side walls and a connecting wall; a chamber in each of said mold chamber means being defined by inner surfaces of said side walls and said connecting wall and with each of said chambers being open opposite the inner surface of each respective connecting wall; first fluid motor means for moving said mold chamber means toward and away from each other in a first plane; plate means respectively reciprocably mounted in said mold chamber means; pattern carrier means movable substantially only in a second plane transverse to said first plane, from a first position remote from said mold chamber means to a second position between said mold chamber means; said pattern carrier having a side wall configuration on each side thereof conforming to the side walls of said mold chamber means and the side walls of said pattern carriage being spaced apart respectively slightly less than the spacing between the side walls of said mold chamber means, said side walls on each side of said pattern carrier in said second position being received within the side walls of said two mold chamber means with at least a portion thereof being confined within the enclosing side walls of said two mold chamber means; said mold chamber means in the second position being disposed in spaced relationship to each other in the first plane; means associated with each of said mold chamber means and adapted to introduce mold sand into the confined spaces between said pattern carrier means and said respective plate means in said mold chamber means when said pattern carrier means is in said second position; said first fluid motor means being adapted to compress mold sand introduced into said confined spaces around said pattern carrier means when the latter is in said second position and said plate means are fixed in a position adjacent the surfaces of the respective connecting walls; said fluid motor means moving said mold chamber means, along with the plates in their fixed positions, toward each other, and from said second position to another position where said mold chamber means are closer to each other, but are still in spaced relationship, so as to form a sand mold; and second fluid motor means operable independently of said first fluid motor means and connected to said plate means in said mold chamber means and adapted to move said plate means from a position adjacent the surface of the respective connecting walls towards the open end of said respective mold chamber means in order to displace the sand mold from said mold chamber means when said pattern carrier means is in said second position.
2. An apparatus according to claim 1, wherein said pattern carrier means is guided and supported in grooves.
3. An apparatus according to claim 1, wherein two second fluid motor means are connected to each plate means.

Claims (3)

1. An apparatus for making sand molds comprising: two mold chamber means, each having side walls and a connecting wall; a chamber in each of said mold chamber means being defined by inner surfaces of said side walls and said connecting wall and with each of said chambers being open opposite the inner surface of each respective connecting wall; first fluid motor means for moving said mold chamber means toward and away from each other in a first plane; plate means respectively reciprocably mounted in said mold chamber means; pattern carrier means movable substantially only in a second plane transverse to said first plane, from a first position remote from said mold chamber means to a second position between said mold chamber means; said pattern carrier having a side wall configuration on each side thereof conforming to the side walls of said mold chamber means and the side walls of said pattern carriage being spaced apart respectively slightly less than the spacing between the side walls of said mold chamber means, said side walls on each side of said pattern carrier in said second position being received within the side walls of said two mold chamber means with at least a portion thereof being confined within the enclosing side walls of said two mold chamber means; said mold chamber means in the second position being disposed in spaced relationship to each other in the first plane; means associated with each of said mold chamber means and adapted to introduce mold sand into the confined spaces between said pattern carrier means and said respective plate means in said mold chamber means when said pattern carrier means is in said second position; said first fluid motor means being adapted to compress mold sand introduced into said confined spaces around said pattern carrier means when the latter is in said second position and said plate means are fixed in a position adjacent the surfaces of the respective connecting walls; said fluid motor means moving said mold chamber means, along with the plates in their fixed positions, toward each other, and from said second position to another position where said mold chamber means are closer to each other, but are still in spaced relationship, so as to form a sand mold; and second fluid motor means operable independently of said first fluid motor means and connected to said plate means in said mold chamber means and adapted to move said plate means from a position adjacent the surface of the respective connecting walls towards the open end of said respective mold chamber means in order to displace the sand mold from said mold chamber means when said pattern carrier means is in said second position.
2. An apparatus according to claim 1, wherein said pattern carrier means is guided and supported in grooves.
3. An apparatus according to claim 1, wherein two second fluid motor means are connected to each plate means.
US00171535A 1971-08-13 1971-08-13 Apparatus for making sand molds Expired - Lifetime US3760866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17153571A 1971-08-13 1971-08-13

Publications (1)

Publication Number Publication Date
US3760866A true US3760866A (en) 1973-09-25

Family

ID=22624096

Family Applications (1)

Application Number Title Priority Date Filing Date
US00171535A Expired - Lifetime US3760866A (en) 1971-08-13 1971-08-13 Apparatus for making sand molds

Country Status (7)

Country Link
US (1) US3760866A (en)
JP (1) JPS4940334B2 (en)
DE (1) DE2157322A1 (en)
ES (1) ES397247A1 (en)
FR (1) FR2149326B1 (en)
GB (1) GB1355577A (en)
IT (1) IT941617B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878881A (en) * 1972-03-10 1975-04-22 Pettibone Corp Method for producing and assembling cope and drag mold parts
USRE28735E (en) * 1972-03-10 1976-03-16 Pettibone Corporation Cyclicly-operable machine adapted to produce and assemble cope and drag mold parts
US4034795A (en) * 1974-02-19 1977-07-12 Shigeji Otaki Full-automatic machine for continuously forming horizontal split molds in so-called non-pallet and non-jacket system
US4100961A (en) * 1976-11-18 1978-07-18 Acme-Cleveland Corporation Foundry molding machine
US4239079A (en) * 1979-05-30 1980-12-16 Joseph Simmons Sand deflector for automatic molding machine
US4262731A (en) * 1978-04-01 1981-04-21 A. Stotz Aktiengesellschaft Foundry molding-apparatus and method
US4678021A (en) * 1984-09-10 1987-07-07 Dansk Industri Syndikat A/S Method and an apparatus for replacing pattern plates in a moulding system
US4976303A (en) * 1990-02-15 1990-12-11 Cmi International, Inc. Method of and apparatus for forming sand molds
DE4021613A1 (en) * 1989-07-06 1991-01-31 Dansk Ind Syndikat MOLDING PRESS AND MODEL CARRIER FOR USE WITH SUCH A PRESS
US5163497A (en) * 1990-02-15 1992-11-17 Cmi International, Inc. Method of and apparatus for forming sand molds
US20040163793A1 (en) * 2003-02-21 2004-08-26 Mckibben Kenneth D. Dual core forming machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50157931U (en) * 1974-06-14 1975-12-27
JPS5448631U (en) * 1977-09-10 1979-04-04

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1006449A (en) * 1911-04-27 1911-10-17 William Millen Duncan Sand-molding apparatus.
US1029079A (en) * 1911-08-16 1912-06-11 Louis J Monahan Molding-machine.
US1450892A (en) * 1923-04-03 Holder s press
US2008725A (en) * 1933-12-01 1935-07-23 William W Rosebro Culinary mold
US2672664A (en) * 1951-05-24 1954-03-23 Eugene C Sudziarski Magnetic form for use in making molds
US2867870A (en) * 1956-10-05 1959-01-13 Hines Flask Company Method and apparatus for making sand molds for castings
US3107402A (en) * 1961-06-02 1963-10-22 Pettibone Mulliken Corp Core-unloading apparatus for an automatic core-making machine
US3431968A (en) * 1966-05-23 1969-03-11 Walter W Eichenberger Process for makingsand molds
US3556196A (en) * 1967-08-18 1971-01-19 Buehler Eugen Method for automatic production and transportation of flaskless sand moulds in metal casting
US3609799A (en) * 1969-05-01 1971-10-05 Le Mark Ind Inc Food patty press

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450892A (en) * 1923-04-03 Holder s press
US1006449A (en) * 1911-04-27 1911-10-17 William Millen Duncan Sand-molding apparatus.
US1029079A (en) * 1911-08-16 1912-06-11 Louis J Monahan Molding-machine.
US2008725A (en) * 1933-12-01 1935-07-23 William W Rosebro Culinary mold
US2672664A (en) * 1951-05-24 1954-03-23 Eugene C Sudziarski Magnetic form for use in making molds
US2867870A (en) * 1956-10-05 1959-01-13 Hines Flask Company Method and apparatus for making sand molds for castings
US3107402A (en) * 1961-06-02 1963-10-22 Pettibone Mulliken Corp Core-unloading apparatus for an automatic core-making machine
US3431968A (en) * 1966-05-23 1969-03-11 Walter W Eichenberger Process for makingsand molds
US3556196A (en) * 1967-08-18 1971-01-19 Buehler Eugen Method for automatic production and transportation of flaskless sand moulds in metal casting
US3609799A (en) * 1969-05-01 1971-10-05 Le Mark Ind Inc Food patty press

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878881A (en) * 1972-03-10 1975-04-22 Pettibone Corp Method for producing and assembling cope and drag mold parts
USRE28735E (en) * 1972-03-10 1976-03-16 Pettibone Corporation Cyclicly-operable machine adapted to produce and assemble cope and drag mold parts
US4034795A (en) * 1974-02-19 1977-07-12 Shigeji Otaki Full-automatic machine for continuously forming horizontal split molds in so-called non-pallet and non-jacket system
US4100961A (en) * 1976-11-18 1978-07-18 Acme-Cleveland Corporation Foundry molding machine
US4262731A (en) * 1978-04-01 1981-04-21 A. Stotz Aktiengesellschaft Foundry molding-apparatus and method
US4239079A (en) * 1979-05-30 1980-12-16 Joseph Simmons Sand deflector for automatic molding machine
US4678021A (en) * 1984-09-10 1987-07-07 Dansk Industri Syndikat A/S Method and an apparatus for replacing pattern plates in a moulding system
DE4021613A1 (en) * 1989-07-06 1991-01-31 Dansk Ind Syndikat MOLDING PRESS AND MODEL CARRIER FOR USE WITH SUCH A PRESS
US5072777A (en) * 1989-07-06 1991-12-17 Dansk Industri Syndikat A/S Press for pressing of molds
US4976303A (en) * 1990-02-15 1990-12-11 Cmi International, Inc. Method of and apparatus for forming sand molds
US5163497A (en) * 1990-02-15 1992-11-17 Cmi International, Inc. Method of and apparatus for forming sand molds
US20040163793A1 (en) * 2003-02-21 2004-08-26 Mckibben Kenneth D. Dual core forming machine

Also Published As

Publication number Publication date
ES397247A1 (en) 1975-03-01
DE2157322A1 (en) 1973-03-15
FR2149326A1 (en) 1973-03-30
FR2149326B1 (en) 1974-09-27
JPS4827925A (en) 1973-04-13
IT941617B (en) 1973-03-10
GB1355577A (en) 1974-06-05
JPS4940334B2 (en) 1974-11-01

Similar Documents

Publication Publication Date Title
US3760866A (en) Apparatus for making sand molds
US3744549A (en) Apparatus for automatic production and transportation of flaskless sand moulds in metal casting
EP0468355B1 (en) Flaskless molding machine
MXPA01012791A (en) Die molding machine and pattern carrier.
US4230172A (en) Molding apparatus with a compressed air squeeze plate
US3828840A (en) Cyclicly-operable machine adapted to produce and assemble cope and drag mold parts
SU1424725A3 (en) Moulding line for making foundry moulds
US3878881A (en) Method for producing and assembling cope and drag mold parts
US2791013A (en) Sand blowing machine
US3736978A (en) Mold forming apparatus with flask having opposed shoulder portions
US4699199A (en) Automated mold making system
US3068537A (en) Foundry system and apparatus
US3794103A (en) Matchplate molding machine
GB1317999A (en) Mould forming apparatus
US4135570A (en) Foundry molding installation for producing boxless sand molds
US2985927A (en) Foundry mold forming apparatus
CN209886619U (en) Double-layer well lid molding machine
GB1333695A (en) Machines for producing moulds consisting of identical mould parts that are lined up against each other
US3318365A (en) Apparatus for producing half molds by pressing
US2636231A (en) Apparatus for and method of making sand molds mechanically
US2877522A (en) Mold blowing apparatus
US4700767A (en) Molding machine for molding-sand cores
US4030535A (en) Molding system
US4241779A (en) Apparatus for manufacturing foundry cores
JPS59107746A (en) Forming device for vertically split casting mold by gas mold