EP3357604B1 - Machine de fabrication de moules - Google Patents

Machine de fabrication de moules Download PDF

Info

Publication number
EP3357604B1
EP3357604B1 EP16889863.3A EP16889863A EP3357604B1 EP 3357604 B1 EP3357604 B1 EP 3357604B1 EP 16889863 A EP16889863 A EP 16889863A EP 3357604 B1 EP3357604 B1 EP 3357604B1
Authority
EP
European Patent Office
Prior art keywords
molding
frame
sand
squeeze
molding machine
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.)
Active
Application number
EP16889863.3A
Other languages
German (de)
English (en)
Other versions
EP3357604A1 (fr
EP3357604A4 (fr
Inventor
Tokiya Terabe
Mitsuyuki Matsushita
Masahide Noguchi
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.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
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 Sintokogio Ltd filed Critical Sintokogio Ltd
Publication of EP3357604A1 publication Critical patent/EP3357604A1/fr
Publication of EP3357604A4 publication Critical patent/EP3357604A4/fr
Application granted granted Critical
Publication of EP3357604B1 publication Critical patent/EP3357604B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/02—Compacting by pressing devices only
    • B22C15/08—Compacting by pressing devices only involving pneumatic or hydraulic mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C21/00—Flasks; Accessories therefor

Definitions

  • the present disclosure relates to a molding machine for forming a mold by squeezing molding sand filled in a molding flask.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2002-1491
  • Patent Document 2 S57-181459U
  • Patent Document D3 JP 2005-329469A .
  • the molding machine described in Documents 1, 2 and 3 include a portion that wears in accordance with a period of use and a frequency of use.
  • the worn portion may affect quality of a mold or a cast product.
  • a molding machine forms a mold by using a transferred molding flask and pattern plate, and comprises: a filling frame provided with a lower opening connectable to an upper opening of the molding flask and a side portion opened; a squeeze head mechanism including a squeeze board movable into and out from the filling frame, and a plurality of squeeze feet passing through the squeeze board, being able to move up and down with respect to the squeeze board; a sand injection hopper including at least one sand injection port for injecting molding sand into a molding space defined by the molding flask, the filling frame, the squeeze head mechanism, and the pattern plate; and a sand injection nozzle formed in the filling frame and provided in a component detachably attached to an opening of the side portion of the filling frame to enable the sand injection port and the molding space to communicate with each other.
  • the molding machine even when the sand injection nozzle wears, only the component provided with the sand injection nozzle can be exchanged.
  • the molding machine is excellent in maintenance and availability.
  • a molding machine forms a mold by using a transferred molding flask and pattern plate, and comprises: a filling frame provided with a lower opening connectable to an upper opening of the molding flask; an injection frame disposed above the filling frame, being provided with a lower opening connectable to an upper opening of the filling frame; a squeeze head mechanism including a squeeze board movable into and out from the injection frame, and a plurality of squeeze feet passing through the squeeze board, being able to move up and down with respect to the squeeze board; a sand injection hopper including at least one sand injection port for injecting molding sand into a molding space defined by the molding flask, the filling frame, the injection frame, the squeeze head mechanism, and the pattern plate; and a sand injection nozzle provided in a side portion of the injection frame to enable the sand injection port and the molding space to communicate with each other.
  • the molding machine even when the sand injection nozzle wears, only the filling frame provided with the sand injection nozzle can be exchanged. Thus, the molding machine is excellent in maintenance and availability.
  • the molding machine may comprise a frame defining a part of the molding space and surrounding an outer periphery of the pattern plate to be slid up and down, and a liner detachably formed in an inner portion of the frame.
  • the liner disposed between the frame and the pattern plate can reduce abrasion of the frame and the pattern plate.
  • the liner may have an upper end surface and an inward surface, made of urethane rubber. In this case, the abrasion can be further reduced.
  • the urethane rubber may have a heat-resistant temperature of 70 to 90°C. In addition, in an embodiment, the urethane rubber also may have a heat-resistant temperature of 110 to 130°C.
  • Figure 1 is a longitudinal sectional view illustrating a molding machine 100 of the embodiment in a state before start (home position).
  • Figure 2 is a longitudinal sectional view illustrating the molding machine 100 in a state where a molding space is defined.
  • the molding machine 100 forms a mold by using a transferred molding flask and pattern plate.
  • the molding machine 100 includes a base board frame 1, for example.
  • a fixed stopper 2 is fixed to the base board frame 1.
  • the base board frame 1 and the fixed stopper 2 constitute a molding base board 3 on which flask setting cylinders 4 and 4 are provided upward on its both respective right and left sides (refer to Figure 1 ).
  • a central portion of a pattern changer 5 is rotatably supported in a horizontal plane.
  • the flask setting cylinder 4 on the left in Figure 1 also serves as a main shaft (rotating shaft) of the pattern changer 5.
  • the pattern changer 5 transfers a pattern plate 8.
  • the pattern changer 5 includes a plurality of support units (not illustrated) such as a main shaft, a turn table 7, and pattern carriers 6 and 6A.
  • the turn table 7 is rotatably supported by the main shaft in a horizontal plane to alternately transfer the pattern carriers 6 and 6A to and from above a central portion of the molding base board 3.
  • the turn table 7 is rotated by an actuator (not illustrated).
  • the actuator is a hydraulic cylinder or the like, for example.
  • the plurality of support units is mounted in a mounting portion of each of the pattern carriers 6 and 6A in the turn table 7.
  • the pattern carrier 6 includes a frame 9, a plurality of guide pins 10, a body frame 11, and an urging unit (not illustrated).
  • the frame 9 slides up and down while surrounding an outer periphery of the pattern plate 8.
  • the plurality of guide pins 10 is coupled to a lower portion of the frame 9.
  • the guide pins 10 are vertically slidably inserted into the body frame 11, and the pattern plate 8 is mounted on an upper surface of the body frame 11.
  • the urging unit has opposite ends each hooked to the frame 9 and the body frame 11, and applies urging force in a direction lowering the frame 9.
  • the urging unit is a plurality of tension coil springs, for example.
  • the pattern carrier 6A has the same structure as that of the pattern carrier 6.
  • a hydraulic cylinder (oil-absorbing cylinder) 14 is provided on the central portion of the molding base board 3.
  • the hydraulic cylinder 14 includes a piston rod provided at its upper end with an engaging head 13.
  • the engaging head 13 is fitted into an engaging groove 12 provided in a central portion at lower end of each of the pattern carriers 6 and 6A.
  • a plurality of lifting cylinders 15 is provided on the molding base board 3, below the corresponding plurality of guide pins 10. Each of the lifting cylinders 15 moves up and down the frame 9 with the guide pin 10.
  • the lifting cylinder 15 includes a piston rod including an upper end to which a rod head 16 is coupled.
  • the frame 9 projects such that its upper surface is slightly (e.g., 30 mm) above a parting surface of the pattern plate 8 (refer to Figure 2 ).
  • the upper surface of the frame 9 is almost flush with the parting surface of the pattern plate 8 when the lifting cylinder 15 is contracted to its contraction end (refer to Figure 1 ).
  • a lifting support frame 17 is provided between upper ends of piston rods 4A of the respective flask setting cylinders 4 and 4.
  • a plurality of sand injection hopper lifting cylinders 18 is attached to the lifting support frame 17, a plurality of sand injection hopper lifting cylinders 18 is attached.
  • Each of the sand injection hopper lifting cylinders 18 includes a piston rod including a leading end coupled to a sand injection hopper 19.
  • the sand injection hopper 19 is provided at its upper end with a sand supply port 21 that is opened and closed by a slide gate 20.
  • the sand injection hopper 19 has an upper portion with which an air supply pipe 23 communicates, the air supply pipe 23 allowing low-pressure air (e.g., 0.05 to 0.18 MPa) to be guided through an on-off valve 22.
  • the sand injection hopper 19 has a lower portion formed of forked chutes 24.
  • Each of the chutes 24 has an inner surface provided with a plurality of air injection chambers 25 and 25 communicating with a compressed air source (not illustrated) through an on-off valve (not illustrated).
  • the plurality of air injection chambers 25 and 25 is configured to form aeration for floating and fluidizing molding sand S by injecting low-pressure air (e.g., 0.05 to 0.18 MPa) into the sand injection hopper 19.
  • low-pressure air e.g., 0.05 to 0.18 MPa
  • Each of the chutes 24 in the sand injection hopper 19 has a lowermost portion provided with a sand injection port 26.
  • Each of the chutes 24 has a lower portion inside which a filling frame 27 is provided while being fixed.
  • the filling frame 27 includes a lower opening 27c connectable to an upper opening 33a of a molding flask 33.
  • the filling frame 27 has a lower portion (side portion) provided with a sand injection nozzle 28.
  • the sand injection nozzle 28 has one end communicating with the sand injection port 26, and the other end communicating with a molding space described below.
  • the filling frame 27 is provided in its inside with a squeeze head mechanism 29.
  • the squeeze head mechanism 29 includes a squeeze board 30 being able to be moved into and out from the filling frame 27, and a plurality of squeeze feet 31.
  • the plurality of squeeze feet 31 is formed by a segment method, and is attached by passing through the squeeze board 30 to enable control of moving up and down of the squeeze board 30.
  • the squeeze board 30 has an upper end fixed to a lower end of the lifting support frame 17.
  • the filling frame 27 described above surrounds an outer periphery of the squeeze head mechanism 29 in a vertically movable manner.
  • the squeeze head mechanism 29 is surrounded by the sand injection hopper 19.
  • the squeeze head mechanism 29 is surrounded by the sand injection hopper 19 from at least two directions.
  • the lifting support frame 17 includes a transfer frame 32 extending to a position below the squeeze head mechanism 29, and a transfer conveyor 34 of the molding flask 33, being hung from the transfer frame 32.
  • the transfer conveyor 34 transfers the molding flask 33.
  • the squeeze head mechanism 29 is configured to be supported by the two flask setting cylinders 4 and 4 so that the squeeze head mechanism 29 descends to perform a flask setting step and a squeezing step.
  • FIG. 1 shows that molding sand S is supplied into the sand injection hopper 19, and that the molding flask 33 being empty is transferred to the transfer conveyor 34.
  • the pattern carriers 6 and 6A each are set on the pattern changer 5 while being lifted by about 5 mm from the molding base board 3 with a compression spring (not illustrated) in a support unit (not illustrated).
  • Figure 1 illustrates a state where the pattern carrier 6 is transferred to a position above a central portion of the molding base board 3. There is a clearance of about 5 mm between an upper surface of the fixed stopper 2 of the molding base board 3 and a lower surface of the pattern carrier 6.
  • the hydraulic cylinder 14 is operated to contract to cause the engaging head 13 to descend, so that the engaging head 13 and the engaging groove 12 formed in the central portion of the lower end of the pattern carrier 6 are fitted to each other.
  • the pattern carrier 6 is pulled down against the compression spring (not illustrated), so that the lower surface of the pattern carrier 6 is pressed on the upper surface of the fixed stopper 2 of the molding base board 3.
  • the lifting cylinder 15 is operated to extend to raise the frame 9 with the guide pins 10. This causes the upper surface of the frame 9 to be positioned slightly above the parting surface of the pattern plate 8.
  • the pattern carrier 6 In a molding machine in which a flask is set upward from the bottom, the pattern carrier 6 is lifted by a table when a flask setting step is started. When a deceleration step is provided in a lifting step to prevent an impact from occurring, a cycle time may increase. Meanwhile, in the molding machine 100 of the present embodiment, the pattern carrier 6 is pressed on the fixed stopper 2 by the hydraulic cylinder 14 when a flask setting step is started, and at the same time, flask setting operation from above can be overlapped. This enables a cycle time to be reduced by time required for the deceleration step, as compared with a conventional molding machine in which a frame is set upward from the bottom, because there is not a deceleration step when the flask setting step is started.
  • the flask setting cylinders 4 and 4 is operated to contract.
  • This causes the molding flask 33 to be mounted on the upper surface of the frame 9 projecting upward around the outer periphery of the pattern plate 8.
  • each of the sand injection hopper lifting cylinders 18 is operated to extend.
  • This causes the sand injection hopper 19 and the filling frame 27 to descend, so that the filling frame 27 is pressed on and brought into close contact with an upper surface of the molding flask 33.
  • each of the squeeze feet 31 is operated.
  • projections and depressions are formed respectively corresponding to projections and depressions of the pattern plate 8 below the molding flask 33, so that the state illustrated in Figure 2 is achieved.
  • the pattern plate 8 mounted on the pattern carrier 6, the frame 9, the molding flask 33, the filling frame 27, and the squeeze head mechanism 29, define a molding space, and the other end of the sand injection nozzle 28 communicates with the molding space.
  • FIG. 3 is a longitudinal sectional view illustrating the molding machine 100 in a state where molding sand is injected by aeration.
  • low-pressure air is injected into the sand injection hopper 19 through each of the plurality of air injection chambers 25 and 25. This causes molding sand S in the sand injection hopper 19 to be floated and fluidized.
  • low-pressure air is supplied to the sand injection hopper 19 from the air supply pipe 23 through the on-off valve 22.
  • the low-pressure air causes the molding space to be filled with the molding sand S through the sand injection port 26 and the sand injection nozzle 28 (aeration filling).
  • the low-pressure air is discharged through a vent hole (not illustrated) or the like of the pattern plate 8.
  • FIG. 4 is a longitudinal sectional view illustrating the molding machine 100 in a state where molding sand is in the first squeeze state.
  • the flask setting cylinder 4 is continuously operated to contract until a squeeze pressure detected by a pressure sensor (not illustrated) reaches a set pressure of the first squeeze, or until an encoder position (not illustrated) of the flask setting cylinder 4 reaches a set position of the first squeeze.
  • FIG. 5 is a longitudinal sectional view illustrating the molding machine 100 in a state where molding sand is in the second squeeze state.
  • the frame 9 descends by using contraction of each of the lifting cylinders 15, and the upper surface of the frame 9 and the parting surface of the pattern plate 8 are almost flush with each other.
  • a squeeze stability timer is operated to maintain squeeze for a predetermined time.
  • the sand injection hopper lifting cylinders 18 are operated to extend to cause the filling frame 27 to descend so that the molding flask 33 is pressed down until the frame 9 reaches the descending end. This enables the lower surface of the molding flask 33 and a lower surface of a mold to be almost flush with each other every time.
  • the lifting cylinders 15 are operated to extend to cause the molding flask 33 to be pressed on the filling frame 27 with the guide pins 10 and the frame 9, the flask setting cylinders 4 and 4 are reversely operated to remove a mold.
  • the molding flask 33, the filling frame 27, the sand injection hopper 19, and the squeeze head mechanism 29 integrally rise.
  • the molding flask 33 including formed a mold is removed and supported with the guide pins 10 and the frame 9 by operation of the lifting cylinders 15.
  • each of the filling frame 27, the sand injection hopper 19, and the squeeze head mechanism 29 rises.
  • FIG. 6 is a longitudinal sectional view illustrating the molding machine 100 in a state where a formed mold is removed and molding sand is supplied.
  • the formed mold is raised slightly together with the molding flask 33 from a stopped state to be removed. Then, the formed mold is removed while a piston rod 4A of the flask setting cylinder 4 most contracts. This enables high accuracy of mold removal to be achieved.
  • the lifting cylinders 15 are operated to contract to cause the guide pins 10 and the frame 9 to descend.
  • the plurality of tension coil springs (not illustrated) applies urging force in a direction in which the frame 9 descends, so that the frame 9 can reliably descend to its descending end.
  • the hydraulic cylinder 14 is operated to extend to raise the engaging head 13, so that the compression spring (not illustrated) in the support unit (not illustrated) lifts the pattern carrier 6 by about 5 mm from the molding base board 3 to release pressing of the molding base board 3 to the fixed stopper 2.
  • FIG. 7 is a longitudinal sectional view illustrating the molding machine 100 in a state where a pattern plate (pattern carrier) is switched. The above operation is repeatedly performed.
  • the pattern changer 5 it is also possible to switch the pattern plates 8 and 8A by transferring the pattern carriers 6 and 6A in and out in a lateral or longitudinal direction at a station outside the molding base board 3 of the turn table 7 after the pattern carriers 6 and 6A are lifted by a lifter with a driving roller (not illustrated). This enables mold change during forming of a mold to enable mold change in cycle.
  • the above-described molding machine 100 includes the sand injection nozzle 28 communicating with the molding space, being formed in the filling frame 27, and allows molding sand to be injected from a lateral side of the molding space.
  • This enables the molding machine 100 to use a layout of the squeeze feet 31 determined from a viewpoint of uniform compression as a whole without considering a placement of the sand injection nozzle 28.
  • the squeeze feet 31 can be disposed in the periphery of the molding flask 33 to enable more uniform mold strength throughout the squeeze board to be acquired. As a result, the molding machine 100 can form an excellent mold.
  • Figure 8 illustrates the sand injection nozzle 28 and the sand injection port 26, on the left in Figure 2 illustrating a state where the molding space is defined, in an enlarged manner. Description of the sand injection nozzle 28 and the sand injection port 26 on the right is omitted because they are bilaterally symmetric.
  • the sand injection nozzle 28 is formed in the filling frame 27.
  • the sand injection nozzle 28 is inclined to become lower from its inlet formed in an outer surface 27a of the filling frame 27 toward its outlet formed in an inner surface 27b thereof.
  • This structure allows molding sand S to be injected from obliquely above with respect to the pattern plate 8.
  • an exchangeable filling frame liner can be attached to the inner surface of the filling frame 27.
  • a material of the exchangeable filling frame liner a material with high wear resistance, such as urethane, is available along with a material all of which is steel such as stainless steel. This enables wear prevention of the filling frame.
  • the sand injection nozzle 28 has a ceiling surface 28a with an inclination angle (30 degrees in the present embodiment) that is larger than an inclination angle (15 degrees in the present embodiment) of its bottom surface 28b.
  • This structure provides an advantage in that crosswise squeezing force is less likely to be applied to molding sand S in the sand injection nozzle 28, so that the molding sand S in the sand injection nozzle 28 is further less likely to be compressed.
  • the molding sand S in the sand injection nozzle 28 is further less likely to fall.
  • the sand injection port 26 has an inclined bottom surface 26a. This structure provides an advantage in that molding sand S passing through the sand injection port 26 is liable to be guided into the sand injection nozzle 28.
  • the bottom surface 26a has an inclination angle that is larger than an inclination angle of the bottom surface 28b of the sand injection nozzle 28, and that is defined as 30 degrees in the present embodiment.
  • a material of the bottom surface 26a of the sand injection port 26 is ultra-high molecular weight polyethylene (e.g., "Saxin New Right” made by Saxin Corp.).
  • This structure provides an advantage in that adhesion of molding sand S to the bottom surface 26a is inhibited to enable the molding sand S to be prevented from being deposited.
  • a block component 35 formed by processing ultra-high molecular weight polyethylene material is provided in a lowermost portion of the chute 24 such that the bottom surface 26a is made of ultra-high molecular weight polyethylene.
  • the sand injection nozzle 28 is attached to a side surface of the filling frame, and is exchangeable.
  • a resin all of which is high molecule polyethylene with high wear resistance, or the like may be used, other than a material all of which is steel.
  • a part of steel may be thermally sprayed with a wear-resistant material.
  • the filling frame 27 is fixed to the inside of the forked chutes 24.
  • This structure causes the filling frame 27 to be lifted together with the sand injection hopper 19 by the sand injection hopper lifting cylinders 18, so that an actuator for directly lifting the filling frame 27 itself is unnecessary. This provides an advantage of reducing the number of actuators.
  • the molding machine 100 is configured to allow the pattern carrier 6 to include the frame 9 that slides up and down while surrounding the outer periphery of the pattern plate 8, the molding machine 100 is not limited to this.
  • the frame 9 may be omitted.
  • the pattern carrier 6 includes the frame 9 to define a molding space by the pattern plate 8 mounted on the pattern carrier 6, the frame 9, the molding flask 33, the filling frame 27, and the squeeze head mechanism 29, the above-described second squeeze (squeeze from a model surface side) becomes possible.
  • Figure 9 is a partially enlarged view of the frame of the other embodiment, and illustrates only one side of the bilateral symmetry.
  • Figure 9 illustrates a state where an upper surface of the frame is positioned 30 mm above the parting surface of the pattern plate 8.
  • the frame 36 is provided in its inner portion with a detachable liner 37.
  • the liner 37 is configured to slide up and down while surrounding the outer periphery of the pattern plate 8.
  • the liner 37 is formed by fixing an urethane rubber 39 to a metal component 38.
  • the liner 37 has an upper end surface and an inward surface to each of which the urethane rubber 39 is attached.
  • This structure provides an advantage in that when the molding space is filled with the molding sand S, the lower surface of the molding flask 33 and the urethane rubber 39 on the upper end surface of the liner 37 are brought into contact with each other to improve sealability between the lower surface of the molding flask 33 and the upper surface of the frame 36, thereby preventing the molding sand S from blowing and leaking.
  • the urethane rubber 39 on the inward surface of the liner 37 improves wear resistance of a surface of the liner 37 to be slid on the outer periphery of the pattern plate 8.
  • a liner with an I-shaped cross section can be attached to only the outer periphery of the pattern plate 8. This also enables the outer periphery of the pattern plate 8 to be prevented from wearing.
  • the urethane rubber 39 may have a heat-resistant temperature of 70 to 90°C, for example. In the present embodiment, the urethane rubber 39 has a heat-resistant temperature of 80°C. When it is expected that the molding flask 33 has a temperature higher than a normal temperature, the urethane rubber 39 may have a heat-resistant temperature of 110 to 130°C. For example, the urethane rubber 39 has a heat-resistant temperature of 120°C.
  • the molding machine 100 is configured to provide the block component 35 formed by processing ultra-high molecular weight polyethylene material in the lowermost portion of the chute 24, the molding machine 100 is not limited to this.
  • the air injection chambers 25 may be provided in place of the block component 35 so that the above-described low-pressure air is injected from the bottom surface 26a of the sand injection port 26.
  • sand is injected by using low-pressure air to enable uniform sand filling.
  • Sand filling by low-pressure air has a feature in which sand is injected at a low flow rate under pressure (e.g., 0.05 to 0.18 MPa) lower than that in sand filling (e.g., 0.2 to 0.5 MPa) by a blow method, thereby reducing wear of a model.
  • Sand filling by a blow method has a high filling rate of sand, so that a blocking phenomenon occurs particularly in a pocket portion, thereby deteriorating filling ability of sand.
  • the molding machine 100 according to the present embodiment also enables setting in which a filling rate of sand is reduced in an initial stage of low-pressure air by an electric pneumatic high-regulating valve to improve filling ability, and pressure is increased from midway to reduce a filling time.
  • a filling rate decreases when pressure is kept low, so that a filling time of sand may increase to increase cycle time.
  • a filling rate of low-pressure air is initially reduced and is increased from midway.
  • the sand injection nozzle 28 is provided in the filling frame 27.
  • the sand injection nozzle 28 may be provided in an injection frame BF that is provided separately from the filling frame 27, and that is able to be separately operated, as illustrated in Figure 10 .
  • This achieves effect in which the filling frame 27 can be provided with an exhaust port of low-pressure air (not illustrated) so that low-pressure air can be discharged through the exhaust port to achieve more excellent filling, for example.
  • one sand injection port may be provided.
  • FIG. 11 is a sectional view of a filling frame 27A according to a modification. As illustrated in Figure 11 , the filling frame 27A according to the modification is provided in its both side portions with respective openings 27d and 27e. Components 50A and 50B are detachably attached to the openings 27d and 27e, respectively. Components 50A and 50B are provided with sand injection nozzles 28A and 28B, respectively.
  • the molding machine is excellent in maintenance and availability.
  • the components 50A and 50B can be made of material (such as resin) with high wear resistance, such as urethane, other than steel such as stainless steel. As described above, the components 50A and 50B can be made of material in consideration of wear resistance, and the filling frame 27A can be made of material suitable for molding. In addition, the filling frame 27A can be provided with an exhaust port 27f for low-pressure air. This enables low-pressure air to be discharged through the exhaust port 27f. As a result, there is an effect in which more excellent filling is achieved.

Landscapes

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

Claims (6)

  1. Machine de moulage (100) formant un moule en utilisant un récipient de moulage transféré (33) et une plaque-modèle (8, 8A), la machine de moulage (100) comprenant :
    une boîte à remplir (27) dotée d'une ouverture inférieure raccordable à une ouverture supérieure du récipient de moulage (33) et d'une partie latérale ouverte ;
    un mécanisme de plaque de serrage (29) incluant un panneau de serrage mobile dans et hors de la boîte à remplir (27), et une pluralité de pattes de serrage (31) passant à travers le panneau de serrage (30), pouvant monter et descendre par rapport au panneau de serrage ;
    une trémie d'injection de sable (19) incluant au moins un orifice d'injection de sable (26) pour injecter du sable de moulage dans un espace de moulage défini par le récipient de moulage, la boîte à remplir, le mécanisme de plaque de serrage et la plaque-modèle; et
    une buse d'injection de sable (28) formée dans la boîte à remplir et fournie dans un composant fixé de manière détachable à une ouverture de la partie latérale de la boîte à remplir pour permettre à l'orifice d'injection de sable et à l'espace de moulage de communiquer l'un avec l'autre.
  2. Machine de moulage formant un moule en utilisant un récipient de moulage transféré et une plaque-modèle, la machine de moulage comprenant :
    une boîte à remplir dotée d'une ouverture inférieure raccordable à une ouverture supérieure du récipient de moulage ;
    une boîte d'injection (BF) disposée au-dessus de la boîte à remplir, dotée d'une ouverture inférieure raccordable à une ouverture supérieure de la boîte à remplir ;
    un mécanisme de plaque de serrage incluant un panneau de serrage mobile dans et hors de la boîte d'injection, et une pluralité de pattes de serrage passant à travers le panneau de serrage, pouvant monter et descendre par rapport au panneau de serrage ;
    une trémie d'injection de sable incluant au moins un orifice d'injection de sable pour injecter du sable de moulage dans un espace de moulage défini par le récipient de moulage, la boîte à remplir, la boîte d'injection, le mécanisme de plaque de serrage et la plaque-modèle ; et
    une buse d'injection de sable fournie dans une partie latérale de la boîte d'injection pour permettre à l'orifice d'injection de sable et à l'espace de moulage de communiquer l'un avec l'autre.
  3. Machine de moulage selon la revendication 1 ou 2, comprenant en outre :
    une boîte définissant une partie de l'espace de moulage et entourant une périphérie externe de la plaque-modèle à glisser vers le haut et le bas ; et
    une doublure formée de manière détachable dans une partie interne de la boîte.
  4. Machine de moulage selon la revendication 3, dans laquelle la doublure a une surface d'extrémité supérieure et une surface interne, en caoutchouc uréthane.
  5. Machine de moulage selon la revendication 4, dans laquelle le caoutchouc uréthane a une température thermorésistante de 70 à 90 °C.
  6. Machine de moulage selon la revendication 4, dans laquelle le caoutchouc uréthane a une température thermorésistante de 110 à 130 °C.
EP16889863.3A 2016-02-10 2016-06-27 Machine de fabrication de moules Active EP3357604B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016023787 2016-02-10
JP2016086360 2016-04-22
PCT/JP2016/069051 WO2017138162A1 (fr) 2016-02-10 2016-06-27 Machine à former des moulages

Publications (3)

Publication Number Publication Date
EP3357604A1 EP3357604A1 (fr) 2018-08-08
EP3357604A4 EP3357604A4 (fr) 2019-03-13
EP3357604B1 true EP3357604B1 (fr) 2021-05-26

Family

ID=59562924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16889863.3A Active EP3357604B1 (fr) 2016-02-10 2016-06-27 Machine de fabrication de moules

Country Status (9)

Country Link
US (1) US20180345358A1 (fr)
EP (1) EP3357604B1 (fr)
JP (1) JP6601509B2 (fr)
KR (1) KR20180109857A (fr)
CN (1) CN108290209B (fr)
BR (1) BR112018007749B1 (fr)
MX (1) MX2018009706A (fr)
TW (1) TWI682818B (fr)
WO (1) WO2017138162A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109604535B (zh) * 2019-01-10 2024-02-20 盐城市大丰澳滨铸造有限公司 一种泥芯机以及其操作方法
CN111974950B (zh) * 2020-08-20 2021-12-31 邵东智能制造技术研究院有限公司 沙模自动灌装成型装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK475A (da) * 1974-02-19 1976-04-09 S Otaki Fuldautomatisk formemaskine til fremstilling af vandret delte stobeforme uden underlagsplader eller spenderammer
GB1456580A (en) * 1974-06-26 1976-11-24 Wallwork & Co Ltd Foundry moulding
JPS57181459A (en) * 1981-05-02 1982-11-08 Matsushita Electric Ind Co Ltd Video tape recorder
JPS57181459U (fr) * 1981-05-09 1982-11-17
US4673020A (en) * 1983-10-21 1987-06-16 Equipment Merchants International Inc. Foundry molding machine and method
JPS6325239U (fr) * 1986-07-30 1988-02-19
ES2048635B1 (es) * 1991-10-30 1996-07-01 Erana Agustin Arana Cabezal para maquinas de moldeo de cajas de arena por impacto de aire.
JPH08187544A (ja) * 1994-12-28 1996-07-23 Kooyoo:Kk 砂型脱型用離型剤の噴射装置
KR100721633B1 (ko) * 1999-11-04 2007-05-23 신토고교 가부시키가이샤 사형을 제조하는 조형기 및 사형을 제조하는 방법
CN1311934C (zh) * 2000-04-21 2007-04-25 新东工业株式会社 带余砂框的模板搬运装置
JP2002018552A (ja) * 2000-07-04 2002-01-22 Sintokogio Ltd 鋳物砂吹込み装置
DE60217205T2 (de) * 2001-03-16 2007-10-04 Sintokogio, Ltd., Nagoya Verfahren und Vorrichtung zum Verdichten von Formsand
JP4379795B2 (ja) * 2004-04-21 2009-12-09 新東工業株式会社 鋳物砂の充填方法
JP4232164B2 (ja) * 2005-08-19 2009-03-04 新東工業株式会社 パターンキャリア移載機構
TWI482675B (zh) * 2009-12-04 2015-05-01 Sintokogio Ltd Mold modeling device and mold modeling method
EA021764B1 (ru) * 2010-03-11 2015-08-31 Синтокогио, Лтд. Формовочная машина
JP5626639B2 (ja) * 2010-08-09 2014-11-19 新東工業株式会社 鋳型造型方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
KR20180109857A (ko) 2018-10-08
EP3357604A1 (fr) 2018-08-08
WO2017138162A1 (fr) 2017-08-17
US20180345358A1 (en) 2018-12-06
TWI682818B (zh) 2020-01-21
BR112018007749B1 (pt) 2021-10-26
JPWO2017138162A1 (ja) 2018-10-25
BR112018007749A2 (pt) 2018-10-23
CN108290209B (zh) 2020-08-28
JP6601509B2 (ja) 2019-11-06
CN108290209A (zh) 2018-07-17
MX2018009706A (es) 2019-01-24
TW201728387A (zh) 2017-08-16
EP3357604A4 (fr) 2019-03-13

Similar Documents

Publication Publication Date Title
EP3366386B1 (fr) Machine à former des moulages, unité de compression de remplissage de sable et procédé de formation de moulages
KR100838875B1 (ko) 주형 조형기 및 패턴 캐리어
KR100721633B1 (ko) 사형을 제조하는 조형기 및 사형을 제조하는 방법
CA2790397C (fr) Methode et appareil pour transporter des moules de sable
US20180345358A1 (en) Mold forming machine
EP2151290A1 (fr) Equipement de moulage d'un moule avec châssis de moulage, et procédé de moulage d'un moule avec châssis de moulage
CA3123848C (fr) Procede et appareil de transport de moules en sable
JP4232164B2 (ja) パターンキャリア移載機構
EP3488945B1 (fr) Procédé de formation de moule
EP1964626A1 (fr) Procédé et dispositif pour la production de châssis fermés
JP4292582B2 (ja) 鋳型の造型方法
JP4096314B2 (ja) 枠付砂鋳型の造型方法
JPS5817697B2 (ja) 鋳型造型方法
JP2001129641A (ja) 鋳型の造型方法及び造型装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180424

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20190212

RIC1 Information provided on ipc code assigned before grant

Ipc: B22C 15/28 20060101AFI20190206BHEP

Ipc: B22C 11/00 20060101ALI20190206BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B22C 15/08 20060101ALI20201124BHEP

Ipc: B22C 15/28 20060101AFI20201124BHEP

Ipc: B22C 11/00 20060101ALI20201124BHEP

Ipc: B22C 21/00 20060101ALI20201124BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210112

INTG Intention to grant announced

Effective date: 20210113

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1395705

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016058621

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1395705

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210826

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210927

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210826

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210926

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210827

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016058621

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210630

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210627

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210627

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

26N No opposition filed

Effective date: 20220301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210926

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210726

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210826

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160627

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240619

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210526