WO2013108449A1 - Flaskless mold making device, flaskless mold making method, and sand receiving device - Google Patents

Flaskless mold making device, flaskless mold making method, and sand receiving device Download PDF

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Publication number
WO2013108449A1
WO2013108449A1 PCT/JP2012/076500 JP2012076500W WO2013108449A1 WO 2013108449 A1 WO2013108449 A1 WO 2013108449A1 JP 2012076500 W JP2012076500 W JP 2012076500W WO 2013108449 A1 WO2013108449 A1 WO 2013108449A1
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WO
WIPO (PCT)
Prior art keywords
mold
plate
sand
frame
lower casting
Prior art date
Application number
PCT/JP2012/076500
Other languages
French (fr)
Japanese (ja)
Inventor
修司 高須
斗紀也 寺部
英彦 大矢
宮崎　寛之
Original Assignee
新東工業株式会社
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 新東工業株式会社 filed Critical 新東工業株式会社
Priority to JP2013554182A priority Critical patent/JP6036705B2/en
Priority to PL12866350T priority patent/PL2777844T3/en
Priority to EP12866350.7A priority patent/EP2777844B1/en
Priority to CN201280055670.2A priority patent/CN103945957B/en
Publication of WO2013108449A1 publication Critical patent/WO2013108449A1/en

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    • 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
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/02—Machines in which the moulds are moved during a cycle of successive operations
    • B22C11/04—Machines in which the moulds are moved during a cycle of successive operations by a horizontal rotary table or carrier
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/108—Installation of cores

Definitions

  • the present invention relates to a punching mold making apparatus, a punching mold forming method, and a sand receiving apparatus for forming a superposed upper and lower mold without a casting frame.
  • Patent Document 1 Conventionally, there is a method and apparatus described in Patent Document 1, for example, as a punching mold forming method and apparatus for forming an upper and lower mold without a casting frame.
  • the mold making apparatus described in Patent Document 1 includes two pairs of upper and lower casting frames, a match plate, squeezing means, means for rotating the squeezing means, means for supplying sand, and two pairs of upper and lower casting frames. And means for alternately turning between the two stations.
  • the mold molding method using this mold molding apparatus can simultaneously perform the process of molding a mold in a pair of molds and the process of extracting the mold from a pair of casting frames containing a mold that has already been molded. There is an advantage that molding can be performed efficiently.
  • a punching mold making apparatus a pair of upper and lower casting frames each composed of an upper casting frame and a lower casting frame, and turning the two pairs of upper and lower casting frames to form a molding station and a mold extraction station.
  • a casting frame turning mechanism that is moved into two stations, a match plate that can be inserted and removed between the upper and lower casting frames located at the molding station among the two pairs of upper and lower casting frames, A pair of squeeze plates that are inserted into the respective openings of the upper and lower casting frames sandwiching the match plate carried in between to form an upper molding space and a lower molding space, and sand in each of the upper molding space and the lower molding space
  • a sand tank having a pair of sand introduction nozzles, a squeeze mechanism for compressing the mold sand filled in the upper molding space and the lower molding space, and the mold extraction station.
  • the method for making a punched frame mold includes moving an upper and lower casting frame made of an upper casting frame and a lower casting frame, which are located in a molding station and face each other in the vertical direction, in a close proximity to each other.
  • the upper and lower casting frames are swung so as to move the upper and lower casting frames to the mold extraction station, and the molds in the upper casting frame of the upper and lower casting frames moved to the mold extraction station are aligned by the hole forming mechanism.
  • a step of drilling a plurality of holes and a step of overlapping the upper and lower casting frames on which the molds are formed by moving the upper and lower casting frames in directions close to each other, and entry into the superimposed upper and lower casting frames are possible.
  • a punched mold making method which is a mold receiving apparatus for forming a mold or a sand receiving apparatus provided in a mold forming line having a mold forming apparatus for forming a mold, and is rotatable.
  • a first plate-like member provided on the first plate-like member, a direction protruding from the front end side of the first plate-like member, and a direction opposite thereto, wherein the first plate-like member is at a predetermined rotation position
  • the first plate member is the second plate Together member is a state as vertically oriented, the second plate-like member is a state of being pulled to the first plate member.
  • a blank frame mold making apparatus capable of efficiently casting a mold capable of improving casting quality in a short time.
  • FIG. 1 It is a front view of the mold making apparatus which concerns on one Embodiment. It is a top view of this mold making apparatus. It is a side view of this mold making apparatus. It is a figure which shows the state of the original position of this mold making apparatus.
  • (A) is a front view.
  • (B) is a view on arrow A4-A4. It is a figure which shows this mold making apparatus of the state which rotated the rotating frame from FIG. (A) is a front view.
  • (B) is an A5-A5 arrow view. It is a figure which shows this mold making apparatus of the state which inserted the match plate between the upper and lower casting frames from FIG. (A) is a front view.
  • (B) is a view on arrow A6-A6.
  • FIG. 8 is a front view showing the mold making apparatus in a state where the upper and lower casting frames are rotated from FIG. 7 and faced in the horizontal direction. It is a front view which shows this mold making apparatus of the state filled with sand in the up-and-down casting frame from FIG.
  • FIG. 10 is a front view showing the mold making apparatus in a state where the mold sand is squeezed from FIG. 9. It is a figure which shows this mold making apparatus of the state which rotated the upper and lower casting frame from FIG.
  • FIG. 10 is a front view.
  • FIG. 12 is a view showing the mold making apparatus in a state where the upper and lower molds are removed from the match plate from FIG. 11.
  • (A) is a front view.
  • (B) is an A12-A12 arrow view. It is a figure which shows this mold making apparatus of the state which rotated the rotating frame from FIG. 12 (state which returned to the original position), ie, the state where the casting frame which has a casting_mold
  • (A) is a front view.
  • (B) is a view on arrow A13-A13.
  • FIG. (A) It is a figure which shows this mold making apparatus of the state in which the vent hole was formed from FIG. (A) is a front view.
  • (B) is a view on arrow B14-B14. It is a figure which shows this mold making apparatus of the state by which the core set was performed from FIG. (A) is a front view.
  • (B) is a view on arrow B15-B15. It is a figure for demonstrating the hole formation mechanism and sand receiving mechanism used at the time of the vent hole formation shown in FIG. (A) is a figure which shows the standby state (before drilling and after drilling) of a sand receiving mechanism.
  • (B) is a figure which shows the sand receiving state (at the time of drilling) of a sand receiving mechanism.
  • (C) is a figure which shows the outline
  • (D) is a C16-C16 arrow view. It is a figure which shows this mold making apparatus of the state (frame alignment) in which the casting frame which has a casting_mold
  • (A) is a front view.
  • (B) is a view on arrow B17-B17.
  • FIG. 18 is a view showing the mold making apparatus in a state where the upper and lower molds are started to be pushed out by the pushing member when the mold is drawn out from FIG. 17.
  • (A) is a front view.
  • (B) is a view on arrow B18-B18.
  • FIG. 19 is a view showing the mold making apparatus in a state in which a mold whose holding power is lost due to a casting frame is lowered by a table by being pushed downward by an extruding member in FIG. 18 when the mold is extracted. is there.
  • (A) is a front view.
  • (B) is a view on arrow B19-B19.
  • FIG. 20 is a view showing the mold making apparatus in a state where the mold is lowered by the table and moved so that the upper and lower casting frames are in their original positions from FIG. 19.
  • (A) is a front view.
  • (B) is a B20-B20 arrow view.
  • FIG. 21 is a diagram showing the mold making apparatus in a state where the operation of extracting the mold is completed from FIG. 20.
  • FIG. 27 is a side cross-sectional view of the hole forming mechanism constituting the mold making apparatus, showing a cross-section from the direction corresponding to FIG. 3, and is a view taken in the direction of arrows X1-X1 shown in FIGS.
  • FIG. 27 is a side sectional view showing a section of the hole forming mechanism from a direction corresponding to FIG.
  • FIG. 25 is a cross-sectional view showing a state where a drill member is lowered and a gas vent hole is formed by the hole forming mechanism with respect to the state shown in FIG. 24.
  • FIG. 25 is an X3-X3 arrow view shown in FIGS. 23 and 24. It is sectional drawing which shows the positional relationship of the up-down direction at the time of changing the position in the horizontal surface of the drill member of this hole formation mechanism. It is a figure explaining the sand receiving mechanism which comprises a mold making apparatus.
  • A) is a front view of a sand receiving mechanism.
  • (B) is a side view.
  • (C) is a plan view.
  • (A) is a figure which shows the standby state (before drilling and after drilling) of a sand receiving mechanism.
  • (B) is a figure which shows the sand receiving state (at the time of drilling) of a sand receiving mechanism. It is a flowchart of the casting_mold
  • FIGS. 4 to 22 are front and cross-sectional schematic diagrams showing states of respective steps for performing mold making by the mold making apparatus 1.
  • FIG. 4 to 22 are schematic views in which the base 22 and details are omitted for explaining the operation.
  • the xy direction is the horizontal direction
  • the z direction is the vertical direction (up and down direction).
  • the mold making apparatus 1 includes two pairs of upper and lower casting frames 4 each comprising an upper casting frame 2 and a lower casting frame 3, a casting frame turning mechanism 5, a match plate 6, Squeeze plates 7 and 8, a sand tank 9, a rotation mechanism 10, a squeeze mechanism 11, an upper and lower casting frame moving mechanism 14, an extraction mechanism 15, and a hole forming mechanism 80.
  • the upper and lower casting frames 4 are provided in two pairs, with the upper casting frame 2 and the lower casting frame 3 as a pair.
  • the upper casting frame 2 and the lower casting frame 3 are arranged to face each other in the vertical direction (z direction).
  • the two upper and lower cast frames 4 are arranged side by side along the x direction.
  • the upper casting frame 2 and the lower casting frame 3 each have an opening that penetrates vertically.
  • Sand inlets 2 a and 3 a for supplying mold sand to the upper casting frame 2 and the lower casting frame 3 are provided on the respective side walls of the upper casting frame 2 and the lower casting frame 3.
  • the side wall is a wall formed in a direction (for example, the x direction) perpendicular to the opposing direction of the upper casting frame 2 and the lower casting frame 3.
  • the casting frame turning mechanism 5 turns the two pairs of upper and lower casting frames 4 and moves them into two stations including a molding station and a mold extraction station.
  • the casting frame turning mechanism 5 has two upper and lower casting frames 4 centered on a rotation axis M1 that passes between two upper and lower casting frames 4 arranged in parallel in the horizontal direction (x direction) and extends in the vertical direction (z direction).
  • the casting frame turning mechanism 5 has two upper and lower castings centered on the rotation axis M1 that extends between the molding station and the mold extraction station arranged in parallel in the horizontal direction (x direction) and extends in the vertical direction (z direction).
  • the frame 4 is turned.
  • the molding station is a position where the mold is molded by compressing the mold sand in the molding space.
  • the mold extraction station is a position where the mold is extracted from the casting frame. That is, the casting frame turning mechanism 5 is in a horizontal state in which a pair of upper and lower casting frames 2 and 3 are arranged in a line up and down one by one between a squeeze mechanism 11 in which the pair of upper and lower casting frames 2 and 3 are in a horizontal state and an extraction mechanism 15 for extracting a mold.
  • This is a mechanism for turning two pairs of upper and lower casting frames intermittently.
  • the cast-frame turning mechanism 5 can latch the upper cast-frame 2 and can raise / lower it along az direction.
  • the match plate 6 can enter and exit between the upper and lower casting frames 4 located in the molding station among the two pairs of upper and lower casting frames.
  • the match plate 6 can be entered and exited by a carry-in / out mechanism 21. Models are provided on both sides of the match plate 6 (FIGS. 4 to 6).
  • a pair of squeeze plates 7 and 8 are inserted into respective openings of the upper and lower casting frames 4 sandwiching the match plate 6 carried between the upper and lower casting frames 4 to form an upper molding space and a lower molding space (see FIG. 7 to 9).
  • the squeeze plate 7 for the upper casting frame 2 can enter and exit the upper opening that is not the lower opening in which the match plate 6 is located, in the opening of the upper casting frame 2.
  • the squeeze plate 8 for the lower casting frame 3 can be put into and out of the lower opening that is not the upper opening in which the match plate 6 is located in the opening of the lower casting frame 3.
  • the sand tank 9 has a pair of sand introduction nozzles 9a and 9b at its lower end.
  • the pair of sand introduction nozzles 9a and 9b is formed downward and fills each of the upper molding space and the lower molding space with sand. Mold sand is accommodated in the sand tank 9, and the mold sand is supplied into the upper and lower casting frames 4 from a pair of sand introduction nozzles 9a and 9b (FIG. 9).
  • the rotation mechanism 10 rotates the upper and lower casting frames 4 forming the upper molding space and the lower molding space in the direction around the axis with the horizontal direction (y direction) as an axis, and the sand introduction ports 2a and 3a are A pair of sand introduction nozzles 9a and 9b are positioned so as to be capable of sand filling. Specifically, for example, the sand introduction ports 2a and 3a and the pair of sand introduction nozzles 9a and 9b are brought into contact with each other so that sand can be filled.
  • an elastic seal member may be provided on the contact surfaces of the sand introduction ports 2a and 3a, and the seal member prevents sand from spilling from the contact surfaces.
  • the rotation mechanism 10 is a lateral cylinder extending in the x direction, and rotates the rotation frame 24 attached to the tip of the rod 10a in the R1 direction by extending and contracting the rod 10a (FIGS. 7 and 8). . Then, the rotation mechanism 10 allows the squeeze mechanism 11, the upper and lower cast frames 4, the match plate 6, the pair of squeeze plates 7, 8 and the like held in the same direction as the R1 direction through the rotation frame 24. Rotate in the opposite direction.
  • the squeeze mechanism 11 moves the pair of squeeze plates 7 and 8 toward the match plate 6 so as to compress the mold sand that is rotated by the rotation mechanism 10 and filled in the upper molding space and the lower molding space (FIG. 10). . Further, the squeeze mechanism 11 moves the pair of squeeze plates 7 and 8 in the direction of approaching and separating from each other when forming the above-described upper molding space and lower molding space.
  • the squeeze mechanism 11 is rotatable between a posture in which the upper and lower casting frames 4 sandwiching the match plate 6 are opposed in the vertical direction and a posture opposed in the horizontal direction.
  • “Upper and lower casting frames 4 face each other in the vertical direction” means that the upper casting frame 2 and the lower casting frame 3 are in a horizontal state. Further, the fact that the upper and lower casting frames 4 are opposed to each other in the horizontal direction means that the upper casting frame 2 and the lower casting frame 3 are in a vertical state.
  • the squeeze mechanism 11 is attached to the rotating frame 24.
  • the rotating frame 24 is rotatable with respect to a frame-like base 22 assembled in a substantially rectangular parallelepiped shape having a space for holding the above-described configuration inside.
  • the support shaft 23 is provided on the base 22 and is disposed so as to extend in the horizontal direction (y direction).
  • the rotation mechanism 10 is, for example, a cylinder mechanism that is disposed sideways so that the axis is in the x direction.
  • the rotation mechanism 10 is joined to the upper portion of the rotation frame 24 by a support shaft 23.
  • the rotation mechanism 10 includes a rod 10a.
  • the tip of the rod 10a is joined to the upper part of the rotating frame 24 to which the squeeze mechanism 11 is attached.
  • the upper and lower formwork moving mechanism 14 moves the upper and lower formwork 4 in a direction to separate them from each other so as to separate the match plate 6 from the molds 12 and 13 (for example, FIG. 9) formed in the upper and lower formwork 4. Further, the upper and lower casting frame moving mechanism 14 also moves the upper and lower casting frames 4 in the direction in which they are close to each other when the match plate 6 is sandwiched as described above.
  • the upper and lower formwork moving mechanism 14 includes an upward cylinder 34, a downward cylinder 35, an upward cylinder 49, and the like which will be described later.
  • the extraction mechanism 15 is provided at a mold extraction station.
  • the extraction mechanism 15 is formed in the upper and lower casting frames 4 when the upper and lower casting frames 4 having the molds 12 and 13 separated from the match plate 6 are moved to the casting mold extraction station by the casting frame turning mechanism 5.
  • the upper mold 12 and the lower mold 13 are superposed and extracted from the upper and lower casting frames 4.
  • the hole forming mechanism 80 is provided at a mold extraction station, and one or a plurality of degassing holes 12a (“gas” is formed in the mold 12 in the upper cast frame 2 among the upper and lower cast frames 4 moved to the position. This is also referred to as a “hole” (FIG. 25).
  • the lower casting frame 3 is slidably bridged between a pair of connecting rods 25 provided downward from the upper casting frame 2, and the lower end of the connecting rod 25. Hung in position.
  • the connecting rod 25 that connects the upper casting frame 2 and the lower casting frame 3 is provided on a side surface of the upper and lower casting frames 4 at a position before and after the turning direction (position facing the y direction).
  • the upper casting frame 2 is provided with a pair of engaging recesses 2b located on the front and rear side surfaces (side surfaces facing the y direction) in the turning direction, 48 is engaged with the protrusion 48b.
  • the lower casting frame 3 is provided with a pair of engaging recesses 3b located on the side surfaces before and after turning (side surfaces facing the y direction), and is engaged with a protrusion 50b of the lower latch member 50 described later. .
  • the carry-in / out mechanism 21 for entering and exiting the match plate 6 includes a rotating cylinder 26 attached to the rotating frame 24, a cantilevered arm 27 connected to the rotating cylinder 26, It has a cylinder 28 attached to the tip and a suspension carriage 29 on which the match plate 6 is placed and which can reciprocate in the entry / exit direction.
  • the suspension carriage 29 When the arm 27 is rotated in the direction R3 in FIG. 5 by the operation of the rotating cylinder 26, the suspension carriage 29 is placed in a horizontal state on the upper casting frame 2 via a rail (not shown) provided on the casting frame and the rotating frame 24. And the match plate 6 is carried in between the lower casting frames 3 (FIG. 6).
  • the suspension carriage 29 carries out the match plate 6 from between the upper and lower casting frames.
  • the cylinder 27 attached to the tip of the arm 27 is expanded and contracted to connect the arm 27 to the suspension carriage 29 or to release the connected state. When the connected state is released, the match plate 6 can be exchanged.
  • the squeeze mechanism 11 is rotatably supported by the support shaft 23 attached to the center of the upper portion of the base 22 via the rotation frame 24.
  • the squeeze mechanism 11 is supported so as to be able to rotate forward and backward in a vertical plane (in the xz plane).
  • An upward cylinder 34 and a downward cylinder 35 are attached to the right side surface of the rotating frame 24 on the upper side and the lower side, respectively.
  • the right side surface of the rotating frame 24 is the right side surface indicated by the arrows A4-A4 in FIG. 4A, and means the side surface on the center side of the casting frame turning mechanism 5.
  • the front-rear direction is a direction connecting the front and rear of the turning direction, and is a tangential direction (y direction) in the molding station.
  • the upper cylinder 34 is provided with an upper lifting frame 32.
  • the downward cylinder 35 is provided with a lower lifting frame 33.
  • the upper and lower elevating frames 32 and 33 are configured to approach and separate from each other by the expansion and contraction operation of the upward cylinder 34 and the downward cylinder 35 attached to the rotating frame 24.
  • a cylinder 36 for advancing and retracting the upper squeeze plate 7 is attached to the upper elevating frame 32.
  • a cylinder 37 for advancing and retracting the lower squeeze plate 8 is attached to the lower lift frame 33.
  • the cylinder 36 and the cylinder 37 may be composed of a plurality of cylinders.
  • the size of the horizontal plane of the squeeze plates 7 and 8 connected via the upper elevating frame 32 and the lower elevating frame 33 has such a size that the upper casting frame 2 and the lower casting frame 3 can be pushed respectively. Yes.
  • the sand tank 9 functions as a mechanism for filling the sand, and is mounted on the left side of the ceiling portion of the base 22 as shown in FIGS. 1 and 4, and further, a pair of sand introduction nozzles 9a, It has a bifurcated shape with 9b. Further, the sand tank 9 is manufactured by sintering ultra-high molecular weight polyethylene, for example, on the inner surface, and is provided with a porous body as a filter part having a large number of holes of about 10 ⁇ m to 80 ⁇ m, for example, and air is ejected from the holes.
  • aeration tank in which sand is filled while being floated and fluidized, and mold sand is filled into the upper casting frame 2 and the lower casting frame 3 independently with low-pressure compressed air (aeration filling).
  • the pressure of the low pressure compressed air is preferably 0.05 to 0.18 MPa.
  • the extraction mechanism 15 is capable of entering from the upper side into the upper and lower horizontal casting frames 4 that are overlapped vertically, and has an extrusion member 38 that pushes the upper and lower molds in the upper and lower casting frames 4 downward.
  • the pushing member 38 is fixed to the lower end of the piston rod of the downward cylinder 39 attached to the ceiling of the base 22.
  • the pushing member 38 moves up and down by the expansion and contraction operation of the cylinder 39.
  • a mold receiving table 40 for receiving the upper and lower molds extracted from the upper and lower casting frames 4 is provided below the pushing member 38 so as to be movable up and down.
  • the table 40 is fixed to the tip of the piston rod of the upward cylinder 41 and moves up and down by the expansion and contraction operation of the cylinder 41.
  • the pushing member 38 lowers the pushing member 38 (FIG. 18) in a state where the upper and lower casting frames 4 are placed on the mold receiving table 40 (FIG. 17). After the pushing member 38 is lowered to the position for pushing the upper mold, the pushing member 38 and the table 40 are lowered, and the molds 12 and 13 are extracted from the upper casting frame 2 and the lower casting mold 3 (FIGS. 18 and 19). .
  • the hole forming mechanism 80 is provided at the mold extraction station, and the upper casting frame 4 is moved to the upper casting frame 4 and moved to the upper casting frame 4.
  • This is a mechanism for making one or a plurality of holes in the mold 12 in the frame 2.
  • the hole forming mechanism 80 has a drill member 82 that forms a hole from the upper side of the upper mold 12.
  • the number of drill members 82 is not limited to one, and a plurality of drill members 82 may be provided.
  • the extraction mechanism 15 is configured such that the upper mold 12 and the lower mold 13 that are superposed on each other by pushing the upper mold 12 superposed on the lower mold 13 downward. Is extruded from the upper and lower casting frames 4.
  • the pushing member 38 is provided with an insertion opening 38a through which the drill member 82 of the hole forming mechanism 80 can be inserted.
  • the hole forming mechanism 80 and the extruding member 38 are configured as described above (the hole forming mechanism 80 is provided inside the extruding member 38), in the mold making apparatus 1 configured as a two-station system, the gas It is possible to arrange a mechanism for punching holes for punching.
  • the extruding member 38 is formed so that the outer periphery 38 b in the horizontal plane (in the xy plane) is shaped along the outer periphery of the upper mold 12.
  • the insertion opening 38a is shaped to extend along a predetermined width from the outer periphery 38b of the pushing member 38.
  • the extruding member 38 is a portion 38c outside the insertion opening 38a and inside the outer periphery 38b of the extruding member 38, so that the upper mold 12 and the lower mold 13 are pushed by pushing the upper mold 12 downward. Pull out from the upper and lower casting frames 4.
  • the extruding member 38 extracts the upper and lower molds 12 and 13 by losing the holding force between the upper casting mold 2 and the lower casting mold 3 at the outer peripheral portions of the upper casting mold 12 and the lower casting mold 13.
  • an appropriate frame can be obtained.
  • the reason why the frame can be properly drawn is the reason why the frame can be properly drawn.
  • the hole forming mechanism 80 includes a drill unit 83 that holds a drill member 82, and a drill unit cylinder 84 as a drill unit drive mechanism that drives the drill unit 83 up and down in a hollow space in the push-out member 38.
  • the drill unit 83 and the drill member 82 held by the drill unit cylinder 84 are driven up and down with respect to the pushing member 38.
  • the drill unit cylinders 84 are provided at two locations so as to sandwich the cylinder 39 for the extruding member 38 (for the frame). This is to drive the drill unit 83 with a good balance.
  • the number of drill unit cylinders is not limited to this, and may be one or four.
  • the number of cylinders 39 is not limited to one, and a plurality of cylinders 39 are provided.
  • a pair of guide rods 99 are provided so as to sandwich the cylinder 39 so that the pushing member 38 can be driven in a balanced manner.
  • the drill unit 83 includes a board member 85 provided with a plurality of mounting holes 85a, and a unit main body 86 that can hold the board member 85 so that the board member 85 can be attached and removed (FIG. 16D). 23, FIG. 24).
  • the unit main body 86 is provided with a roller member 87 so that the board member 85 can slide in the horizontal direction.
  • the unit main body 86 is provided with positioning pins (not shown) for positioning and fixing, and by this positioning pin, the board member 85 that is slid on the roller member 87 and inserted and attached to the unit main body 86 can be fixed. .
  • the drill member 82 can be selectively attached to and detached from any of the attachment holes 85a of the board member 85.
  • the drill member 82 can be separated vertically by a screw structure, and the screw structure of the upper and lower members 82b and 82c of the board member 85 is made in a state where the male screw portion is inserted into the mounting hole 85a of the board member 85. It is possible to attach to the board member 85 by integrating.
  • a conduction branch portion 88 for branching air is provided on the board member 85.
  • the conduction branch portion 88 is connected to the air conduction portion 89 via the air hose 90.
  • the air conduction part 89 is connected to an air supply part provided in the mold making apparatus 1.
  • the conduction branch portion 88 is connected to the drill member 82 via the air hose 91.
  • the conduction branch portion 88 supplies the air supplied to the air conduction portion 89 to each drill member 82.
  • the drill part 82a of the drill member 82 is rotated by the supplied air.
  • the drill unit 83 is lowered by the drill unit cylinder 84, thereby forming the gas vent hole 12a in the upper mold 12 (FIG. 25).
  • the upper mold 12 is connected to the degassing hole 12a connected to the degassing hole 12a together with the mold cavity 12c by a model of the match plate 6 as shown in FIG. A space 12b is formed.
  • an electric drive or hydraulic drive may be used.
  • the hole forming mechanism 80 having the drill unit 83 enables the position of the gas vent hole to be formed to be changed in the horizontal plane (in the xy plane). That is, when changing the position of the gas vent hole to be formed, the drill member 82 may be attached to the mounting hole 85a corresponding to a desired position among the plurality of mounting holes 85a formed in the board member 85. It is also possible to change the number of vent holes.
  • the hole forming mechanism 80 is effective when the match plate is exchanged and the position of the model is changed.
  • work of the drill member 82 can be easily performed by the above structures.
  • the mold making apparatus 1 includes a sand receiving mechanism 100 below the upper casting frame 2 in the same station (mold extraction station) as the hole forming mechanism 80.
  • the sand receiving mechanism 100 receives sand generated by drilling when the hole forming mechanism 80 is drilled and discharges it to the outside of the apparatus.
  • the sand receiving mechanism 100 is configured to be attached to the rotating frame 43, and one sand receiving mechanism 100 is disposed at each station (mold extraction station, molding station), but is not limited thereto. That is, the sand receiving mechanism 100 only needs to function as a sand receiver when it is positioned at least at the mold extraction station. For example, when the sand receiving mechanism 100 is attached to a portion that does not turn together with the casting frame other than the rotating frame 43, the sand receiving mechanism 100 is provided at the mold extraction station. It only has to be done.
  • the sand receiving mechanism 100 includes a first plate-like member 101 that is rotatably provided, and a direction that protrudes from the distal end side of the first plate-like member 101. Y2 and a second plate member 102 provided to be movable in the opposite direction Y2.
  • the second plate-like member 102 is punched by the hole forming mechanism 80 at a position where the second plate-like member 101 protrudes in a protruding direction with respect to the first plate-like member 101 when the first plate-like member 101 is at a predetermined rotation position.
  • This is a sand receiving member for receiving the sand generated by.
  • the first plate member 101 is in a state in which the second plate member 102 faces in the vertical direction. Further, the second plate-like member 102 is pulled into the first plate-like member 101 (FIGS. 16A and 29A).
  • the first plate-like member 101 is inclined with respect to the horizontal direction so that the distal end side is located above the proximal end side.
  • the second plate-like member 102 is protruded from the first plate-like member 101 in the protruding direction Y1 (FIGS. 16B and 29B).
  • the sand receiving mechanism 100 has a first cylinder 103 that rotates the first plate-like member 101 and a second cylinder 104 that drives the second plate-like member 102.
  • the second cylinder 104 drives the second plate-like member 102 so as to pop out and retract the first plate-like member 101.
  • the base end portion of the first plate-like member 101 is a fixed portion 101a for turning center, and the first plate-like member 101 is turnable.
  • the extending member 101b provided extending from the fixed portion 101a has a function of converting the linear motion of the first cylinder 103 into a rotational motion.
  • the tip 103c of the rod 103b of the first cylinder 103 is attached to the tip 101c of the extending member 101b.
  • the first cylinder 103 has a base end side as a fixed portion 103a, and is provided to be rotatable around the fixed portion 103a.
  • the inclination angle ⁇ with respect to the horizontal direction LH is in the range of 5 ° to 45 °. It functions as a sand receiver even when the inclination is smaller than 5 ° or in a horizontal state, but it may spill slightly from the tip side to the lower mold side when discharged to the outside. Can be small. Further, when the inclination is larger than 45 °, the size of the first and second plate-like members 101 and 102 is increased.
  • the inclination angle ⁇ may be 20 ° to 40 °.
  • the second plate member 102 receives the sand generated by the drilling. is there. Then, by driving the rod 103b and the rod 104b in the contracting direction, the first plate-like member 101 is driven so as to face in the vertical direction, and the second plate-like member 102 is moved relative to the first plate-like member 101. Driven in the pull-in direction Y2. Thereby, the sand received on the 2nd plate-shaped member 102 is discharged
  • the sand receiving mechanism 100 is generated by drilling the hole forming mechanism 80, and prevents unnecessary sand from accumulating on the mold and core in the lower casting frame 3, that is, prevents casting defects. To do. Further, by providing the first plate member 101, the second plate member 102, the first cylinder 103, and the second cylinder 104, the function can be exhibited with a compact configuration, and the configuration of the entire apparatus is simplified and miniaturized. it can.
  • the above-described sand receiving mechanism (also referred to as “sand receiving device”) 100 can be used not only in a blank frame mold making device but also in a frame mold making device for carrying out a molded mold together with a casting frame. Furthermore, it can be provided in a mold making line having a mold making apparatus.
  • the mold making apparatus 1 is provided with a hole punching apparatus that has been conventionally considered difficult to be placed in a two-station type blank frame mold making apparatus, thereby realizing automation of gas vent hole making.
  • the casting frame turning mechanism 5 includes a rotating frame 43 that is turned while holding the upper and lower casting frames 4, and a rotating frame driving unit 44. is doing.
  • the rotating frame driving means 44 is configured such that the tip of the rod 44a is attached to the mounting portion 43a of the rotating frame 43, and the rod 44a is expanded and contracted so that the rotating frame 45 is moved around the rotating shaft M1. Reverse 180 degrees in direction and opposite direction.
  • the casting frame turning mechanism 5 can turn the two pairs of upper and lower casting frames 4 sequentially to the molding station and the mold extraction station by the forward rotation and the reversing operation.
  • a support member 46 is mounted on the upper portion of the rotating frame 43 (FIGS. 1 to 3).
  • the support member 46 is provided with two pairs of guide rods 47 that extend downward in the vertical direction and make a pair at a predetermined interval in the front-rear direction.
  • two pairs of guide rods 47 are provided with an upper hooking member 48 that can hook the engaging recess 2b of the upper casting frame 2 in a vertically slidable manner.
  • the tip of the piston rod of the upward cylinder 49 attached to the rotating frame 43 is fixed to each upper latch member 48.
  • Each upper latch member 48 is moved up and down by the expansion and contraction of the upward cylinder 49.
  • a lower latching member 50 capable of latching the engaging recess 3 b of the lower casting frame 3 is fixed to the lower ends of the two pairs of guide rods 47.
  • the upper latch member 48 is provided with a protrusion 48b that engages with the engagement recess 2b.
  • the lower latch member 50 is provided with a protrusion 50b that engages with the engagement recess 3b.
  • a mold discharge mechanism 51 for extruding the upper and lower molds 12 and 13 extracted from the upper casting frame 2 and the lower casting frame 3 onto the mold receiving table 40 by the extraction mechanism 15. (FIGS. 21 and 22).
  • FIG. 30 is a flowchart of the mold making method.
  • the rotating frame 43 rotates from a basic posture (also referred to as “original position”) as shown in FIG.
  • a basic posture also referred to as “original position”
  • the upper and lower casting frames 2 and 3 positioned at the molding station and the upper and lower casting frames 2 and 3 positioned at the mold extraction station are switched (FIG. 5). That is, the upper and lower casting frames 4 to be processed move to the molding station (S10).
  • the rotary cylinder 26 of the carry-in / out mechanism 21 is rotationally driven from the state shown in FIG.
  • the match plate 6 is carried between the upper casting frame 2 and the lower casting frame 3 in a horizontal state by the pair of arms 27 rotated in the R3 direction (S12).
  • the squeeze mechanism 11 contracts the upward cylinder 34 and the downward cylinder 35 to bring the upper casting frame 2 and the lower casting frame 3 closer to each other via the vertical lifting frames 32 and 33.
  • the upper and lower casting frames 4 brought close to each other by the squeeze mechanism 11 are in a state of holding the match plate 6 (S14).
  • the squeeze mechanism 11 extends the cylinders 36 and 37 to the required length.
  • the cylinders 36 and 37 insert the upper squeeze plate 7 and the lower squeeze plate 8 into the upper casting frame 2 and the lower casting frame 3, respectively.
  • the upper squeeze plate 7 and the lower squeeze plate 8 form two upper and lower molding spaces (upper molding space and lower molding space) together with the upper casting frame 2, the lower casting frame 3, and the match plate 6 (FIG. 7, S16). .
  • the rotation mechanism 10 extends the rod 10a to rotate the squeeze mechanism 11 about the support shaft 23 in the R1 direction as shown in FIG. At this time, the rotation mechanism 10 brings the upper casting frame 2, the lower casting frame 3, and the match plate 6 into a vertical state.
  • the sand inlets 2a and 3a provided on the side walls of the upper casting frame 2 and the lower casting frame 3 are moved upward so as to face upward.
  • the sand introduction ports 2a and 3a of the upper and lower casting frames 4 are brought into contact with sand introduction nozzles 9a and 9b provided at the lower end of the bifurcated shape of the sand tank 9 configured as an aeration tank (S18).
  • the sand tank 9 as the sand filling mechanism fills the upper molding space and the lower molding space with the molding sand through the sand introduction ports 2a and 3a (S20).
  • the cylinders 36 and 37 are driven to move the upper squeeze plate 7 and the lower squeeze plate 8 in the direction close to the match plate 6, and the mold sand in the two upper and lower molding spaces. Is squeezed (S22).
  • the rotation mechanism 10 rotates the upper casting frame 2, the lower casting frame 3, and the match plate 6 in the direction R2 opposite to the above-described rotation direction R1 to obtain a horizontal state (FIG. 11). .
  • the upward cylinder 34 and the downward cylinder 35 are extended to separate the vertical lift frames 32 and 33 from each other.
  • the casting frame turning mechanism 5 extends the cylinder 49 and lifts the upper casting frame 2 containing the mold formed by squeezing the mold sand by the upper retaining member 48.
  • the match plate 6 is removed from the upper casting frame 2 and the lower casting frame 3 (FIG. 12, S24).
  • the cylinder 49 provided in the turning portion separates the upper casting frame 2 from the match plate 6.
  • the lower casting frame 3 is placed on the lower retaining member 50 of the casting frame turning mechanism 5 by the cylinder 35.
  • the rotating cylinder 26 is rotated to carry out the match plate 6 from between the upper casting frame 2 and the lower casting frame 3 by the pair of arms 27 (S26).
  • the casting frame turning mechanism 5 rotates the rotating frame 43 to move the upper and lower casting frames 4 on which the molds 12 and 13 are formed from the molding station to the mold extraction station.
  • the upper and lower casting frames 4 from which the molds 12 and 13 have been extracted at the mold extraction station are moved to the molding station (FIG. 13, S28).
  • a vent hole is formed by the hole forming mechanism 80 (S30).
  • the sand generated by the formation of the vent holes is collected by the sand receiving mechanism 100 and discharged outside the apparatus.
  • the placement of the core 110 is performed by the operator (S32).
  • the core set may be performed before the formation of the gas venting holes shown in FIG. Further, the core setting may not be performed.
  • the upper casting frame 2 containing the mold 12 is lowered via the upper retaining member 48 and placed on the lower casting frame 3 as shown in FIG. Then, the upper and lower cast frames 4 are overlapped (S34).
  • the mold receiving table 40 is raised by the extension operation of the cylinder 41 of the mold extraction mechanism 15, and the upper and lower molds 12 and 13 in the upper and lower casting frames 4 are placed on the table 40.
  • the cylinder 39 of the mold extraction mechanism 15 is extended to lower the pusher member 38 to a position where the upper mold 12 is pushed. Thereafter, the pusher member 38 and the table 40 are lowered while interlocking with each other.
  • the mold is extracted from the upper and lower casting frames 2 and 3 (FIGS. 18, 19, 20, 21 and S36). Subsequently, as shown in FIG. 22, the upper and lower molds 12 and 13 on the table 40 are pushed out in the direction of arrow W in the figure by extending the rod 51a of the mold discharge mechanism 51 (S38).
  • the mold making method has the following steps. That is, in the step of S14, the match plate 6 is sandwiched by moving the upper and lower casting frames 4 made up of the upper casting frame 2 and the lower casting frame 3 that are located at the molding station and face each other in the vertical direction in the proximity of each other. .
  • a pair of squeeze plates 7 and 8 are inserted into the respective openings of the upper and lower casting frames 4 sandwiching the match plate 6 to form an upper molding space and a lower molding space.
  • the upper and lower casting frames 4 forming the upper molding space and the lower molding space are rotated on the axis around the horizontal direction so as to be provided on the respective side walls of the upper and lower casting frames 4.
  • the sand introduction ports 2a and 3a are positioned so that sand can be filled from a pair of sand introduction nozzles 9a and 9b formed downward from the lower end of the sand tank 9.
  • step S20 the molding sand is filled from the sand tank 9 into the upper molding space and the lower molding space through the sand inlets 2a and 3a.
  • step S22 the pair of squeeze plates 7 and 8 are moved to the match plate 6 side to compress the molding sand in the upper molding space and the lower molding space.
  • the upper and lower cast frames 4 are rotated so as to return to the posture opposed in the vertical direction.
  • the match plate 6 is separated from the mold formed in the upper and lower casting frames by moving the upper and lower casting frames 4 in directions away from each other.
  • the upper and lower casting frames are turned so that the upper and lower casting frames on which the molds are formed at the molding station are moved to the mold extraction station.
  • one or a plurality of holes are made by the hole forming mechanism in the mold in the upper casting frame among the upper and lower casting frames moved to the mold extraction station.
  • the upper and lower casting frames on which the molds are formed are overlapped by moving the upper and lower casting frames in directions close to each other.
  • the respective molds in the upper and lower casting frames are extracted from the upper and lower casting frames in a state of being overlapped by the mold extracting mechanism 15 having members that can enter the stacked upper and lower casting frames.
  • the mold making method includes two pairs of the above-described molding station and mold extraction station, and two pairs of upper and lower casting frames each having a process state corresponding to each station.
  • Upper and lower casting frames are provided, and the upper and lower casting frames are swung and moved into two stations, thereby forming the upper and lower casting molds without the casting frames that are sequentially stacked.
  • This mold making method is provided with the above-described characteristic configuration, and by forming the gas vent hole 12a, it is possible to prevent the casting from being defective due to a gas defect. Therefore, the casting quality is improved.
  • sand generated by drilling may be received and discharged by the sand receiving mechanism 100 provided at the same station as the hole forming mechanism. In this way, by preventing the shaved sand generated at the time of drilling from dropping into the lower mold, it is possible to realize automation of gas drilling and to prevent casting quality from being deteriorated by this sand.
  • the mold making apparatus 1 includes the two pairs of upper and lower casting frames 4 each including the upper casting frame 2 and the lower casting frame 3, the casting frame turning mechanism 5, the match plate 6, and the pair. Squeeze plates 7 and 8, a sand tank 9, an extraction mechanism 15, and a hole forming mechanism 80.
  • the mold making apparatus 1 can prevent a defect due to a gas defect from occurring in the casting by the hole forming mechanism 80 forming the gas vent hole 12a. Therefore, the casting quality is improved.
  • the mold making apparatus 1 receives the shaved sand generated at the time of drilling by the sand receiving mechanism 100 and discharges it to the outside of the apparatus so that it does not drop onto the lower mold or the core, so that the gas hole It is possible to realize automation of drilling and to prevent the casting quality from being deteriorated by this sand.
  • the hole forming mechanism 80 and the sand receiving mechanism 100 may be provided in a punching station of a mold making machine having three or more stations. In the case of three or more stations, the hole forming mechanism 80 and the sand receiving mechanism 100 may be provided in stations other than the frame drawing station.
  • SYMBOLS 1 Mold making apparatus, 2 ... Upper casting frame, 3 ... Lower casting frame, 6 ... Match plate, 80 ... Hole formation mechanism, 100 ... Sand receiving mechanism.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

The present invention is provided with: two pairs of upper and lower casting frames (4) each formed from an upper casting frame (2) and a lower casting frame (3); a casting frame turning mechanism (5) that turns the two pairs of upper and lower casting frames and moves the same within two stations formed from a mold making station and a mold release station; a match plate (6); a pair of squeeze plates (7, 8); a sand tank (9); a release mechanism (15); and a hole forming mechanism (80) that is provided so as to be positioned on the mold release station and opens one or a plurality of holes in the mold within the upper molding frame out of the upper and lower molding frames moved into that position.

Description

抜枠鋳型造型装置、抜枠鋳型造型方法及び砂受け装置Punched frame mold making device, Punched frame mold making method and sand receiving device
　本発明は、重ね合わされた鋳枠無しの上下鋳型を造型する抜枠鋳型造型装置、抜枠鋳型造型方法及び砂受け装置に関する。 The present invention relates to a punching mold making apparatus, a punching mold forming method, and a sand receiving apparatus for forming a superposed upper and lower mold without a casting frame.
　従来、鋳枠無しの上下鋳型を造型する抜枠鋳型造型方法及び装置として、例えば特許文献１に記載された方法及び装置がある。特許文献１に記載された鋳型造型装置は、２対の上下鋳枠と、マッチプレートと、スクイズ手段と、スクイズ手段を回動させる手段と、砂を供給する手段と、２対の上下鋳枠を２つのステーション間に交互に旋回する手段とを備えている。 Conventionally, there is a method and apparatus described in Patent Document 1, for example, as a punching mold forming method and apparatus for forming an upper and lower mold without a casting frame. The mold making apparatus described in Patent Document 1 includes two pairs of upper and lower casting frames, a match plate, squeezing means, means for rotating the squeezing means, means for supplying sand, and two pairs of upper and lower casting frames. And means for alternately turning between the two stations.
　この鋳型造型装置を用いた鋳型造型方法は、一対の鋳型内に鋳型を造型する工程と、すでに造型された鋳型を内蔵する一対の鋳枠から鋳型を抜き出す工程とを同時に実施でき、短時間に効率よく造型を行うことができるという利点がある。 The mold molding method using this mold molding apparatus can simultaneously perform the process of molding a mold in a pair of molds and the process of extracting the mold from a pair of casting frames containing a mold that has already been molded. There is an advantage that molding can be performed efficiently.
特許第４２８１７４２号公報Japanese Patent No. 4281742
　ところで、鋳型を用いて鋳物を形成する場合、鋳物にガス欠陥による不良が発生する場合がある。本技術分野では、鋳物品質を向上させることが可能な鋳型を短時間に効率よく造型することができる抜枠鋳型造型装置、抜枠鋳型造型方法及び砂受け装置が望まれている。 Incidentally, when a casting is formed using a mold, a defect due to a gas defect may occur in the casting. In this technical field, there is a demand for a blank frame mold making device, a blank frame mold making method, and a sand receiving device that can efficiently mold a mold capable of improving casting quality in a short time.
　本発明の一側面に係る抜枠鋳型造型装置は、それぞれ上鋳枠及び下鋳枠からなる２対の上下鋳枠と、該２対の上下鋳枠を旋回して、造型ステーション、鋳型抜き出しステーションからなる２つのステーション内に移動させる鋳枠旋回機構と、前記２対の上下鋳枠のうち前記造型ステーションに位置する上下鋳枠の間に入出可能とされたマッチプレートと、該上下鋳枠の間に搬入されたマッチプレートを挟持した上下鋳枠のそれぞれの開口部に挿入され上造型空間及び下造型空間を形成する一対のスクイズプレートと、該上造型空間、該下造型空間のそれぞれに砂を充填する一対の砂導入ノズルを有するサンドタンクと、該上造型空間及び該下造型空間に充填された鋳型砂を圧縮するスクイズ機構と、前記鋳型抜き出しステーションに設けられ、前記鋳枠旋回機構により前記鋳型抜き出しステーションに移動された上下鋳枠内に形成された上鋳型及び下鋳型を、重ね合わせた状態で該上下鋳枠から抜き出しする抜き出し機構と、前記鋳型抜き出しステーションに設けられ、前記鋳型抜き出しステーションに移動された上下鋳枠のうち上鋳枠内の鋳型に一又は複数の孔をあける孔形成機構と、を備える。 According to one aspect of the present invention, there is provided a punching mold making apparatus, a pair of upper and lower casting frames each composed of an upper casting frame and a lower casting frame, and turning the two pairs of upper and lower casting frames to form a molding station and a mold extraction station. A casting frame turning mechanism that is moved into two stations, a match plate that can be inserted and removed between the upper and lower casting frames located at the molding station among the two pairs of upper and lower casting frames, A pair of squeeze plates that are inserted into the respective openings of the upper and lower casting frames sandwiching the match plate carried in between to form an upper molding space and a lower molding space, and sand in each of the upper molding space and the lower molding space A sand tank having a pair of sand introduction nozzles, a squeeze mechanism for compressing the mold sand filled in the upper molding space and the lower molding space, and the mold extraction station. An extraction mechanism for extracting the upper mold and the lower mold formed in the upper and lower casting frames, which are moved to the mold extraction station by the casting frame turning mechanism, from the upper and lower casting frames in a superimposed state; and the mold extraction station And a hole forming mechanism that opens one or a plurality of holes in the mold in the upper casting frame among the upper and lower casting frames moved to the mold extraction station.
　また、本発明の他の側面に係る抜枠鋳型造型方法は、造型ステーションに位置して垂直方向に対向する上鋳枠及び下鋳枠からなる上下鋳枠を相互に近接方向に移動させることによってマッチプレートを挟持する工程と、前記マッチプレートを挟持した上下鋳枠のそれぞれの開口部に一対のスクイズプレートを挿入させて上造型空間及び下造型空間を形成する工程と、該上造型空間及び該下造型空間にサンドタンクから鋳型砂を充填する工程と、前記一対のスクイズプレートを前記マッチプレート側に移動させて上造型空間及び下造型空間内の鋳型砂を圧縮する工程と、前記上下鋳枠を相互に離間させる方向に移動させることで、前記上下鋳枠内に形成された鋳型からマッチプレートを分離する工程と、前記造型ステーションにおいて鋳型が形成された上下鋳枠を鋳型抜き出しステーションに移動させるように該上下鋳枠を旋回する工程と、該鋳型抜き出しステーションに移動された上下鋳枠のうち上鋳枠内の鋳型に孔形成機構により一又は複数の孔をあける工程と、該上下鋳枠を相互に近接する方向に移動させることで、それぞれ鋳型が形成された上下鋳枠を重ね合わせる工程と、重ね合わせた上下鋳枠内に進入可能な部材を有する鋳型抜き出し機構により上下鋳枠内のそれぞれの鋳型を重ね合わせた状態で該上下鋳枠から抜き出す工程とを備え、前記造型ステーション、前記鋳型抜き出しステーションからなる２つのステーションには、それぞれのステーションに応じた工程の状態とされる、それぞれ上鋳枠及び下鋳枠からなる２対の上下鋳枠が設けられ、該上下鋳枠を旋回させて２つのステーション内に移動させることで、順次重ね合わされた鋳枠無しの上下鋳型を造型する。 In addition, the method for making a punched frame mold according to another aspect of the present invention includes moving an upper and lower casting frame made of an upper casting frame and a lower casting frame, which are located in a molding station and face each other in the vertical direction, in a close proximity to each other. A step of sandwiching the match plate, a step of inserting a pair of squeeze plates into the respective openings of the upper and lower casting frames sandwiching the match plate, and forming an upper molding space and a lower molding space; A step of filling the lower molding space with sand from a sand tank; a step of moving the pair of squeeze plates toward the match plate to compress the molding sand in the upper molding space and the lower molding space; and the upper and lower casting frames Separating the match plate from the mold formed in the upper and lower casting frames by moving the molds in directions away from each other, and the mold at the molding station The upper and lower casting frames are swung so as to move the upper and lower casting frames to the mold extraction station, and the molds in the upper casting frame of the upper and lower casting frames moved to the mold extraction station are aligned by the hole forming mechanism. Alternatively, a step of drilling a plurality of holes, and a step of overlapping the upper and lower casting frames on which the molds are formed by moving the upper and lower casting frames in directions close to each other, and entry into the superimposed upper and lower casting frames are possible. And a step of extracting from the upper and lower casting frames in a state where the respective molds in the upper and lower casting frames are overlapped by a mold extracting mechanism having a flexible member, each of the two stations consisting of the molding station and the mold extracting station includes There are two pairs of upper and lower casting frames, each consisting of an upper casting frame and a lower casting frame, and the upper and lower casting frames are swung. That Te is moved into the two stations is to molding sequentially superposed cope flask without the upper and lower molds.
　本発明のさらに他の側面に係る抜枠鋳型造型方法は、鋳型を造型する鋳型造型装置、若しくは鋳型を造型する鋳型造型装置を有する鋳型造型ラインに設けられる砂受け装置であって、回動可能に設けられた第１板状部材と、前記第１板状部材の先端側から突出する方向及びその反対方向に移動可能に設けられ、前記第１板状部材が所定の回動位置にあるときに前記第１板状部材に対して、前記突出する方向に飛び出された位置で孔あけにより発生する砂を受けるための砂受け用の第２板状部材と、前記第１板状部材を回動させる第１シリンダと、前記第２板状部材を前記第１板状部材に対して飛び出す動作及び引き込む動作をするよう駆動する第２シリンダとを有し、前記孔あけ前及び前記孔あけ後には、前記第１板状部材は、前記第２板状部材が垂直方向を向くような状態とされるとともに、前記第２板状部材は、前記第１板状部材に対して引き込んだ状態とされる。 According to still another aspect of the present invention, there is provided a punched mold making method, which is a mold receiving apparatus for forming a mold or a sand receiving apparatus provided in a mold forming line having a mold forming apparatus for forming a mold, and is rotatable. A first plate-like member provided on the first plate-like member, a direction protruding from the front end side of the first plate-like member, and a direction opposite thereto, wherein the first plate-like member is at a predetermined rotation position A second plate member for receiving sand for receiving sand generated by drilling at a position protruding in the protruding direction with respect to the first plate member, and the first plate member. A first cylinder to be moved, and a second cylinder for driving the second plate member to pop out and retract the first plate member, and before and after the drilling. The first plate member is the second plate Together member is a state as vertically oriented, the second plate-like member is a state of being pulled to the first plate member.
　本発明の種々の側面によれば、鋳物品質を向上させることが可能な鋳型を短時間に効率よく造型することができる抜枠鋳型造型装置、抜枠鋳型造型方法及び砂受け装置が提供される。 According to various aspects of the present invention, there are provided a blank frame mold making apparatus, a blank frame mold making method, and a sand receiving apparatus capable of efficiently casting a mold capable of improving casting quality in a short time. .
一実施形態に係る鋳型造型装置の正面図である。It is a front view of the mold making apparatus which concerns on one Embodiment. 該鋳型造型装置の平面図である。It is a top view of this mold making apparatus. 該鋳型造型装置の側面図である。It is a side view of this mold making apparatus. 該鋳型造型装置の原位置の状態を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ４－Ａ４矢視図である。It is a figure which shows the state of the original position of this mold making apparatus. (A) is a front view. (B) is a view on arrow A4-A4. 図４から回転フレームを回転させた状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ５－Ａ５矢視図である。It is a figure which shows this mold making apparatus of the state which rotated the rotating frame from FIG. (A) is a front view. (B) is an A5-A5 arrow view. 図５からマッチプレートを上下鋳枠の間に挿入させた状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ６－Ａ６矢視図である。It is a figure which shows this mold making apparatus of the state which inserted the match plate between the upper and lower casting frames from FIG. (A) is a front view. (B) is a view on arrow A6-A6. 図６から枠セット及びスクイズプレートセットを行い造型空間を形成した状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ７－Ａ７矢視図である。It is a figure which shows this mold making apparatus of the state which performed the frame set and the squeeze plate set from FIG. 6, and formed the molding space. (A) is a front view. (B) is a view on arrow A7-A7. 図７から上下鋳枠を回動し水平方向に対向された状態の該鋳型造型装置を示す正面図である。FIG. 8 is a front view showing the mold making apparatus in a state where the upper and lower casting frames are rotated from FIG. 7 and faced in the horizontal direction. 図８から上下鋳枠内に砂充填された状態の該鋳型造型装置を示す正面図である。It is a front view which shows this mold making apparatus of the state filled with sand in the up-and-down casting frame from FIG. 図９から鋳型砂がスクイズされた状態の該鋳型造型装置を示す正面図である。FIG. 10 is a front view showing the mold making apparatus in a state where the mold sand is squeezed from FIG. 9. 図１０から上下鋳枠を回動し垂直方向に対向された状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ１１－Ａ１１矢視図である。It is a figure which shows this mold making apparatus of the state which rotated the upper and lower casting frame from FIG. 10, and was facing the vertical direction. (A) is a front view. (B) is an A11-A11 arrow view. 図１１から上下鋳型がマッチプレートから抜型される状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ１２－Ａ１２矢視図である。FIG. 12 is a view showing the mold making apparatus in a state where the upper and lower molds are removed from the match plate from FIG. 11. (A) is a front view. (B) is an A12-A12 arrow view. 図１２から回転フレームを回転させた状態（原位置に戻った状態）、すなわち、鋳型を有する鋳枠が鋳型抜き出しステーションに移動された状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ａ１３－Ａ１３矢視図である。It is a figure which shows this mold making apparatus of the state which rotated the rotating frame from FIG. 12 (state which returned to the original position), ie, the state where the casting frame which has a casting_mold | template was moved to the casting_mold | template extraction station. (A) is a front view. (B) is a view on arrow A13-A13. 図１３からガス抜き孔が形成された状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ１４－Ｂ１４矢視図である。It is a figure which shows this mold making apparatus of the state in which the vent hole was formed from FIG. (A) is a front view. (B) is a view on arrow B14-B14. 図１４から中子セットが行われた状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ１５－Ｂ１５矢視図である。It is a figure which shows this mold making apparatus of the state by which the core set was performed from FIG. (A) is a front view. (B) is a view on arrow B15-B15. 図１４に示すガス抜き孔形成時に用いられる孔形成機構及び砂受け機構を説明するための図である。（ａ）は、砂受け機構の待機状態（孔あけ前及び孔あけ後）を示す図である。（ｂ）は、砂受け機構の砂受け状態（孔あけ時）を示す図である。（ｃ）は、孔形成機構の概要を示す図である。（ｄ）は、Ｃ１６－Ｃ１６矢視図である。It is a figure for demonstrating the hole formation mechanism and sand receiving mechanism used at the time of the vent hole formation shown in FIG. (A) is a figure which shows the standby state (before drilling and after drilling) of a sand receiving mechanism. (B) is a figure which shows the sand receiving state (at the time of drilling) of a sand receiving mechanism. (C) is a figure which shows the outline | summary of a hole formation mechanism. (D) is a C16-C16 arrow view. 図１５から鋳型を有する鋳枠が重ね合わされた状態（枠合わせ）の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ１７－Ｂ１７矢視図である。It is a figure which shows this mold making apparatus of the state (frame alignment) in which the casting frame which has a casting_mold | template from FIG. 15 was piled up. (A) is a front view. (B) is a view on arrow B17-B17. 図１７から鋳型を抜き出す際の押し出し部材により上下鋳型を押し出し始めた状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ１８－Ｂ１８矢視図である。FIG. 18 is a view showing the mold making apparatus in a state where the upper and lower molds are started to be pushed out by the pushing member when the mold is drawn out from FIG. 17. (A) is a front view. (B) is a view on arrow B18-B18. 鋳型を抜き出す際に、図１８で押し出し部材により下方側に押し出されることにより、鋳枠との関係で保持力が失われた鋳型がテーブルにより下降されている状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ１９－Ｂ１９矢視図である。FIG. 19 is a view showing the mold making apparatus in a state in which a mold whose holding power is lost due to a casting frame is lowered by a table by being pushed downward by an extruding member in FIG. 18 when the mold is extracted. is there. (A) is a front view. (B) is a view on arrow B19-B19. 図１９から、鋳型がテーブルにより下降されているとともに、上下鋳枠が原位置の状態となるように移動された状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ２０－Ｂ２０矢視図である。FIG. 20 is a view showing the mold making apparatus in a state where the mold is lowered by the table and moved so that the upper and lower casting frames are in their original positions from FIG. 19. (A) is a front view. (B) is a B20-B20 arrow view. 図２０から、鋳型の抜き出す動作が完了した状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ２１－Ｂ２１矢視図である。FIG. 21 is a diagram showing the mold making apparatus in a state where the operation of extracting the mold is completed from FIG. 20. (A) is a front view. (B) is a view on arrow B21-B21. 図２１で抜き出された上下鋳型が装置外部に押し出されている状態の該鋳型造型装置を示す図である。（ａ）は、正面図である。（ｂ）は、Ｂ２２－Ｂ２２矢視図である。FIG. 22 is a view showing the mold making apparatus in a state where the upper and lower molds extracted in FIG. 21 are pushed out of the apparatus. (A) is a front view. (B) is a view on arrow B22-B22. 鋳型造型装置を構成する孔形成機構の、図３に対応する方向からの断面を示す側断面図であり、図２及び図２６に示すＸ１－Ｘ１矢視図である。FIG. 27 is a side cross-sectional view of the hole forming mechanism constituting the mold making apparatus, showing a cross-section from the direction corresponding to FIG. 3, and is a view taken in the direction of arrows X1-X1 shown in FIGS. 該孔形成機構の、図１に対応する方向からの断面を示す側断面図であり、図２及び図２６に示すＸ２－Ｘ２矢視図である。FIG. 27 is a side sectional view showing a section of the hole forming mechanism from a direction corresponding to FIG. 1, and is a view taken along arrows X2-X2 shown in FIGS. 該孔形成機構により、図２４に示す状態に対してドリル部材が下降してガス抜き用孔が形成された状態を示す断面図である。FIG. 25 is a cross-sectional view showing a state where a drill member is lowered and a gas vent hole is formed by the hole forming mechanism with respect to the state shown in FIG. 24. 図２３及び図２４に示すＸ３－Ｘ３矢視図である。FIG. 25 is an X3-X3 arrow view shown in FIGS. 23 and 24. 該孔形成機構のドリル部材の水平面内の位置を変更する際の上下方向の位置関係を示す断面図である。It is sectional drawing which shows the positional relationship of the up-down direction at the time of changing the position in the horizontal surface of the drill member of this hole formation mechanism. 鋳型造型装置を構成する砂受け機構を説明する図である。（ａ）は、砂受け機構の正面図である。（ｂ）は、側面図である。（ｃ）は、平面図である。It is a figure explaining the sand receiving mechanism which comprises a mold making apparatus. (A) is a front view of a sand receiving mechanism. (B) is a side view. (C) is a plan view. 該砂受け機構の動作を説明する図である。（ａ）は、砂受け機構の待機状態（孔あけ前及び孔あけ後）を示す図である。（ｂ）は、砂受け機構の砂受け状態（孔あけ時）を示す図である。It is a figure explaining operation | movement of this sand receiving mechanism. (A) is a figure which shows the standby state (before drilling and after drilling) of a sand receiving mechanism. (B) is a figure which shows the sand receiving state (at the time of drilling) of a sand receiving mechanism. 一実施形態に係る鋳型造型方法のフローチャートである。It is a flowchart of the casting_mold | template molding method which concerns on one Embodiment.
　以下、実施形態に係る抜枠鋳型造型装置（以下、「鋳型造型装置」という。）及び抜枠鋳型造型方法並びに砂受け装置について、図面を参照して説明する。図１～図３は、実施形態に係る鋳型造型装置１の「正面図」、「平面図」、「側面図」である。図４～図２２は、鋳型造型装置１による、鋳型造型を行う各工程の状態を示す正面及び断面の該略図である。尚、図４～図２２は、動作を説明するため、基台２２や細部を省略した概略図である。図中、ｘｙ方向が水平方向であり、ｚ方向が垂直方向（上下方向）である。 Hereinafter, a blank frame mold making apparatus (hereinafter referred to as “mold mold molding apparatus”), a blank frame mold molding method, and a sand receiving apparatus according to an embodiment will be described with reference to the drawings. 1 to 3 are a “front view”, “plan view”, and “side view” of the mold making apparatus 1 according to the embodiment. FIGS. 4 to 22 are front and cross-sectional schematic diagrams showing states of respective steps for performing mold making by the mold making apparatus 1. FIG. 4 to 22 are schematic views in which the base 22 and details are omitted for explaining the operation. In the figure, the xy direction is the horizontal direction, and the z direction is the vertical direction (up and down direction).
　図１～図２２に示すように、鋳型造型装置１は、それぞれ上鋳枠２及び下鋳枠３からなる２対の上下鋳枠４と、鋳枠旋回機構５と、マッチプレート６と、一対のスクイズプレート７，８と、サンドタンク９と、回動機構１０と、スクイズ機構１１と、上下鋳枠移動機構１４と、抜き出し機構１５と、孔形成機構８０とを備える。 As shown in FIGS. 1 to 22, the mold making apparatus 1 includes two pairs of upper and lower casting frames 4 each comprising an upper casting frame 2 and a lower casting frame 3, a casting frame turning mechanism 5, a match plate 6, Squeeze plates 7 and 8, a sand tank 9, a rotation mechanism 10, a squeeze mechanism 11, an upper and lower casting frame moving mechanism 14, an extraction mechanism 15, and a hole forming mechanism 80.
　上下鋳枠４は、上鋳枠２及び下鋳枠３を１対として、２対設けられている。図１では上鋳枠２及び下鋳枠３は上下方向（ｚ方向）に対向して配置されている。２つの上下鋳枠４は、ｘ方向に沿って並んで配置されている。上鋳枠２及び下鋳枠３は、それぞれ上下に貫通した開口部を有している。また、上鋳枠２及び下鋳枠３のそれぞれの側壁には、鋳型砂を上鋳枠２及び下鋳枠３に供給するための砂導入口２ａ，３ａが設けられている。ここで、側壁とは、上鋳枠２及び下鋳枠３の対向方向に直行する方向（例えばｘ方向）に形成された壁である。 The upper and lower casting frames 4 are provided in two pairs, with the upper casting frame 2 and the lower casting frame 3 as a pair. In FIG. 1, the upper casting frame 2 and the lower casting frame 3 are arranged to face each other in the vertical direction (z direction). The two upper and lower cast frames 4 are arranged side by side along the x direction. The upper casting frame 2 and the lower casting frame 3 each have an opening that penetrates vertically. Sand inlets 2 a and 3 a for supplying mold sand to the upper casting frame 2 and the lower casting frame 3 are provided on the respective side walls of the upper casting frame 2 and the lower casting frame 3. Here, the side wall is a wall formed in a direction (for example, the x direction) perpendicular to the opposing direction of the upper casting frame 2 and the lower casting frame 3.
　鋳枠旋回機構５は、該２対の上下鋳枠４を旋回して、造型ステーション、鋳型抜き出しステーションからなる２つのステーション内に移動させる。鋳枠旋回機構５は、水平方向（ｘ方向）に並設された２つの上下鋳枠４の間を通り上下方向（ｚ方向）に延びる回転軸Ｍ１を中心として、２つの上下鋳枠４を旋回させる。言い換えれば、鋳枠旋回機構５は、水平方向（ｘ方向）に並設された造型ステーション及び鋳型抜き出しステーションの間を通り上下方向（ｚ方向）に延びる回転軸Ｍ１を中心として、２つの上下鋳枠４を旋回させる。ここで、造型ステーションは、造型空間内の鋳型砂を圧縮することにより鋳型を造型する位置である。鋳型抜き出しステーションは、鋳型を鋳枠内から抜き出す位置である。すなわち、鋳枠旋回機構５は、１対の上下鋳枠２、３が水平状態にあるスクイズ機構１１と、鋳型を抜き出す抜き出し機構１５との間を、１対ずつ上下に連なって並ぶ水平状態の２対の上下鋳枠を間欠的に旋回させる機構である。また、鋳枠旋回機構５は、上鋳枠２を掛止めしてｚ方向に沿って昇降させることが可能である。 The casting frame turning mechanism 5 turns the two pairs of upper and lower casting frames 4 and moves them into two stations including a molding station and a mold extraction station. The casting frame turning mechanism 5 has two upper and lower casting frames 4 centered on a rotation axis M1 that passes between two upper and lower casting frames 4 arranged in parallel in the horizontal direction (x direction) and extends in the vertical direction (z direction). Turn. In other words, the casting frame turning mechanism 5 has two upper and lower castings centered on the rotation axis M1 that extends between the molding station and the mold extraction station arranged in parallel in the horizontal direction (x direction) and extends in the vertical direction (z direction). The frame 4 is turned. Here, the molding station is a position where the mold is molded by compressing the mold sand in the molding space. The mold extraction station is a position where the mold is extracted from the casting frame. That is, the casting frame turning mechanism 5 is in a horizontal state in which a pair of upper and lower casting frames 2 and 3 are arranged in a line up and down one by one between a squeeze mechanism 11 in which the pair of upper and lower casting frames 2 and 3 are in a horizontal state and an extraction mechanism 15 for extracting a mold. This is a mechanism for turning two pairs of upper and lower casting frames intermittently. Moreover, the cast-frame turning mechanism 5 can latch the upper cast-frame 2 and can raise / lower it along az direction.
　マッチプレート６は、２対の上下鋳枠のうち造型ステーションに位置する上下鋳枠４の間に入出可能とされている。また、このマッチプレート６は、搬入出機構２１によって入出可能とされている。マッチプレート６の両面には、模型が設けられている（図４～図６）。 The match plate 6 can enter and exit between the upper and lower casting frames 4 located in the molding station among the two pairs of upper and lower casting frames. The match plate 6 can be entered and exited by a carry-in / out mechanism 21. Models are provided on both sides of the match plate 6 (FIGS. 4 to 6).
　一対のスクイズプレート７，８は、該上下鋳枠４の間に搬入されたマッチプレート６を挟持した上下鋳枠４のそれぞれの開口部に挿入され上造型空間及び下造型空間を形成する（図７～図９）。換言すると上鋳枠２用のスクイズプレート７は、上鋳枠２の開口部のうちマッチプレート６が位置する下側の開口でない上側の開口に入出可能とされている。下鋳枠３用のスクイズプレート８は、下鋳枠３の開口部のうちマッチプレート６が位置する上側の開口でない下側の開口に入出可能とされている。 A pair of squeeze plates 7 and 8 are inserted into respective openings of the upper and lower casting frames 4 sandwiching the match plate 6 carried between the upper and lower casting frames 4 to form an upper molding space and a lower molding space (see FIG. 7 to 9). In other words, the squeeze plate 7 for the upper casting frame 2 can enter and exit the upper opening that is not the lower opening in which the match plate 6 is located, in the opening of the upper casting frame 2. The squeeze plate 8 for the lower casting frame 3 can be put into and out of the lower opening that is not the upper opening in which the match plate 6 is located in the opening of the lower casting frame 3.
　サンドタンク９は、その下端部に一対の砂導入ノズル９ａ，９ｂを有する。一対の砂導入ノズル９ａ，９ｂは、下方に向けて形成され、上造型空間、下造型空間のそれぞれに砂を充填する。サンドタンク９内には、鋳型砂が収容されており、一対の砂導入ノズル９ａ，９ｂから上下鋳枠４内に鋳型砂を供給する（図９）。 The sand tank 9 has a pair of sand introduction nozzles 9a and 9b at its lower end. The pair of sand introduction nozzles 9a and 9b is formed downward and fills each of the upper molding space and the lower molding space with sand. Mold sand is accommodated in the sand tank 9, and the mold sand is supplied into the upper and lower casting frames 4 from a pair of sand introduction nozzles 9a and 9b (FIG. 9).
　回動機構１０は、上造型空間及び下造型空間を形成した上下鋳枠４を、水平方向（ｙ方向）を軸とした軸周り方向に回動して、前記砂導入口２ａ，３ａが前記一対の砂導入ノズル９ａ，９ｂから砂充填可能となるように位置させる。具体的に例えば、砂導入口２ａ，３ａと一対の砂導入ノズル９ａ，９ｂとを当接させることで、砂充填を可能な状態とする。ここで、砂導入口２ａ，３ａの当接面には、弾性を有するシール部材を設けるようにしてもよく、このシール部材により、砂が当接面からこぼれることを防止する。回動機構１０は、ｘ方向に延びる横向きのシリンダであり、ロッド１０ａを伸縮動作することにより、ロッド１０ａ先端に取り付けられた回動フレーム２４をＲ１方向に回動させる（図７、図８）。そして、回動機構１０は、この回動フレーム２４を介して、スクイズ機構１１やこれに保持される上下鋳枠４、マッチプレート６、一対のスクイズプレート７，８等をＲ１方向と同一方向及び反対方向に回動させる。 The rotation mechanism 10 rotates the upper and lower casting frames 4 forming the upper molding space and the lower molding space in the direction around the axis with the horizontal direction (y direction) as an axis, and the sand introduction ports 2a and 3a are A pair of sand introduction nozzles 9a and 9b are positioned so as to be capable of sand filling. Specifically, for example, the sand introduction ports 2a and 3a and the pair of sand introduction nozzles 9a and 9b are brought into contact with each other so that sand can be filled. Here, an elastic seal member may be provided on the contact surfaces of the sand introduction ports 2a and 3a, and the seal member prevents sand from spilling from the contact surfaces. The rotation mechanism 10 is a lateral cylinder extending in the x direction, and rotates the rotation frame 24 attached to the tip of the rod 10a in the R1 direction by extending and contracting the rod 10a (FIGS. 7 and 8). . Then, the rotation mechanism 10 allows the squeeze mechanism 11, the upper and lower cast frames 4, the match plate 6, the pair of squeeze plates 7, 8 and the like held in the same direction as the R1 direction through the rotation frame 24. Rotate in the opposite direction.
　スクイズ機構１１は、回動機構１０に回動され上造型空間及び下造型空間に充填された鋳型砂を圧縮するように一対のスクイズプレート７，８をマッチプレート６側に移動させる（図１０）。また、スクイズ機構１１は、上述の上造型空間及び下造型空間を形成する際に一対のスクイズプレート７，８を相互に近接離間する方向に移動させる。スクイズ機構１１は、マッチプレート６を挟持した上下鋳枠４が垂直方向に対向する姿勢と水平方向に対向する姿勢との間を回動可能とされている。 The squeeze mechanism 11 moves the pair of squeeze plates 7 and 8 toward the match plate 6 so as to compress the mold sand that is rotated by the rotation mechanism 10 and filled in the upper molding space and the lower molding space (FIG. 10). . Further, the squeeze mechanism 11 moves the pair of squeeze plates 7 and 8 in the direction of approaching and separating from each other when forming the above-described upper molding space and lower molding space. The squeeze mechanism 11 is rotatable between a posture in which the upper and lower casting frames 4 sandwiching the match plate 6 are opposed in the vertical direction and a posture opposed in the horizontal direction.
　上下鋳枠４が垂直方向に対向するとは、上鋳枠２及び下鋳枠３がそれぞれ水平状態にある場合をいう。また、上下鋳枠４が水平方向に対向するとは、上鋳枠２及び下鋳枠３がそれぞれ垂直状態にある場合をいう。 “Upper and lower casting frames 4 face each other in the vertical direction” means that the upper casting frame 2 and the lower casting frame 3 are in a horizontal state. Further, the fact that the upper and lower casting frames 4 are opposed to each other in the horizontal direction means that the upper casting frame 2 and the lower casting frame 3 are in a vertical state.
　具体的にスクイズ機構１１は、回動フレーム２４に取り付けられている。回動フレーム２４は、内部に上述の構成を保持するための空間を有する略直方体状に組まれたフレーム状の基台２２に対して、回動可能とされている。支持軸２３は、基台２２に設けられ、水平方向（ｙ方向）に伸びるように配置されている。回動機構１０は、例えば、軸線がｘ方向となるように横向きに配置されたシリンダ機構である。回動機構１０は、回動フレーム２４の上側の部分に、支持軸２３によって接合されている。回動機構１０は、ロッド１０ａを備えている。ロッド１０ａの先端は、スクイズ機構１１が取り付けられた回動フレーム２４の上側の部分に接合される。このロッド１０ａが伸び縮みすることで回動フレーム２４及びこれに取り付けられたスクイズ機構１１が回動され、上下鋳枠４の姿勢が変更される（図７、図８）。 Specifically, the squeeze mechanism 11 is attached to the rotating frame 24. The rotating frame 24 is rotatable with respect to a frame-like base 22 assembled in a substantially rectangular parallelepiped shape having a space for holding the above-described configuration inside. The support shaft 23 is provided on the base 22 and is disposed so as to extend in the horizontal direction (y direction). The rotation mechanism 10 is, for example, a cylinder mechanism that is disposed sideways so that the axis is in the x direction. The rotation mechanism 10 is joined to the upper portion of the rotation frame 24 by a support shaft 23. The rotation mechanism 10 includes a rod 10a. The tip of the rod 10a is joined to the upper part of the rotating frame 24 to which the squeeze mechanism 11 is attached. When the rod 10a expands and contracts, the rotating frame 24 and the squeeze mechanism 11 attached thereto are rotated, and the posture of the upper and lower casting frames 4 is changed (FIGS. 7 and 8).
　上下鋳枠移動機構１４は、上下鋳枠４内に形成された鋳型１２，１３（例えば図９）からマッチプレート６を分離するように前記上下鋳枠４を相互に離間させる方向に移動させる。また、上下鋳枠移動機構１４は、上述のようにマッチプレート６を挟持する際等に上下鋳枠４を相互に近接させる方向にも移動させる。具体的に、上下鋳枠移動機構１４は、後述の上向きシリンダ３４、下向きシリンダ３５、上向きシリンダ４９等からなる。 The upper and lower formwork moving mechanism 14 moves the upper and lower formwork 4 in a direction to separate them from each other so as to separate the match plate 6 from the molds 12 and 13 (for example, FIG. 9) formed in the upper and lower formwork 4. Further, the upper and lower casting frame moving mechanism 14 also moves the upper and lower casting frames 4 in the direction in which they are close to each other when the match plate 6 is sandwiched as described above. Specifically, the upper and lower formwork moving mechanism 14 includes an upward cylinder 34, a downward cylinder 35, an upward cylinder 49, and the like which will be described later.
　抜き出し機構１５は、鋳型抜き出しステーションに位置して設けられる。抜き出し機構１５は、マッチプレート６が分離された鋳型１２，１３を内部に有する上下鋳枠４が鋳枠旋回機構５により鋳型抜き出しステーションに移動された際に、上下鋳枠４内に形成された上鋳型１２及び下鋳型１３を重ね合わせた状態で該上下鋳枠４から抜き出しする。 The extraction mechanism 15 is provided at a mold extraction station. The extraction mechanism 15 is formed in the upper and lower casting frames 4 when the upper and lower casting frames 4 having the molds 12 and 13 separated from the match plate 6 are moved to the casting mold extraction station by the casting frame turning mechanism 5. The upper mold 12 and the lower mold 13 are superposed and extracted from the upper and lower casting frames 4.
　孔形成機構８０は、鋳型抜き出しステーションに位置して設けられ、該位置に移動された上下鋳枠４のうち上鋳枠２内の鋳型１２に一又は複数のガス抜き用の孔１２ａ（「ガス抜き孔」ともいう。）をあける（図２５）。 The hole forming mechanism 80 is provided at a mold extraction station, and one or a plurality of degassing holes 12a (“gas” is formed in the mold 12 in the upper cast frame 2 among the upper and lower cast frames 4 moved to the position. This is also referred to as a “hole” (FIG. 25).
　以下、さらに具体的な構成について説明する。上述した上下鋳枠４において、下鋳枠３は、上鋳枠２から下方に向けて設けられた一対の連結棒２５間に摺動自在に架け渡されているとともに、この連結棒２５の下端位置で掛けられている。上鋳枠２及び下鋳枠３を連結する連結棒２５は、上下鋳枠４の側面であって旋回方向の前後の位置（ｙ方向に対向する位置）に設けられている。また、図４に示すように、上鋳枠２には、旋回方向の前後の側面（ｙ方向に対向する側面）に位置して一対の係合凹部２ｂが設けられ、後述の上掛止部材４８の突起部４８ｂに係合される。下鋳枠３には、旋回の前後の側面（ｙ方向に対向する側面）に位置して一対の係合凹部３ｂが設けられ、後述の下掛止部材５０の突起部５０ｂに係合される。 Hereinafter, a more specific configuration will be described. In the above-described upper and lower casting frames 4, the lower casting frame 3 is slidably bridged between a pair of connecting rods 25 provided downward from the upper casting frame 2, and the lower end of the connecting rod 25. Hung in position. The connecting rod 25 that connects the upper casting frame 2 and the lower casting frame 3 is provided on a side surface of the upper and lower casting frames 4 at a position before and after the turning direction (position facing the y direction). Further, as shown in FIG. 4, the upper casting frame 2 is provided with a pair of engaging recesses 2b located on the front and rear side surfaces (side surfaces facing the y direction) in the turning direction, 48 is engaged with the protrusion 48b. The lower casting frame 3 is provided with a pair of engaging recesses 3b located on the side surfaces before and after turning (side surfaces facing the y direction), and is engaged with a protrusion 50b of the lower latch member 50 described later. .
　マッチプレート６を入出する搬入出機構２１は、図５に示すように、回動フレーム２４に取り付けられた回転シリンダ２６と、回転シリンダ２６に連結された片持ち構造のアーム２７と、アーム２７の先端に取り付けられたシリンダ２８と、マッチプレート６を載せて入出方向へ往復動自在な吊り下げ台車２９とを有する。 As shown in FIG. 5, the carry-in / out mechanism 21 for entering and exiting the match plate 6 includes a rotating cylinder 26 attached to the rotating frame 24, a cantilevered arm 27 connected to the rotating cylinder 26, It has a cylinder 28 attached to the tip and a suspension carriage 29 on which the match plate 6 is placed and which can reciprocate in the entry / exit direction.
　回転シリンダ２６の動作によりアーム２７が図５中Ｒ３方向に回動されると、吊り下げ台車２９は、鋳枠や回動フレーム２４に設けた図示しないレールを介して水平状態の上鋳枠２及び下鋳枠３の間にマッチプレート６を搬入させる（図６）。アーム２７が逆方向に回動されると、吊り下げ台車２９は、上下鋳枠間からマッチプレート６を搬出させる。また、アーム２７の先端に取り付けられたシリンダ２８を伸縮動作させることにより、アーム２７を吊り下げ台車２９に連結したり、連結状態を解除したりする。連結状態を解除したときに、マッチプレート６の交換が可能となる。 When the arm 27 is rotated in the direction R3 in FIG. 5 by the operation of the rotating cylinder 26, the suspension carriage 29 is placed in a horizontal state on the upper casting frame 2 via a rail (not shown) provided on the casting frame and the rotating frame 24. And the match plate 6 is carried in between the lower casting frames 3 (FIG. 6). When the arm 27 is rotated in the reverse direction, the suspension carriage 29 carries out the match plate 6 from between the upper and lower casting frames. Further, the cylinder 27 attached to the tip of the arm 27 is expanded and contracted to connect the arm 27 to the suspension carriage 29 or to release the connected state. When the connected state is released, the match plate 6 can be exchanged.
　スクイズ機構１１は、上述のように、基台２２の上部の中央に装着した支持軸２３に回動フレーム２４を介して回動自在に支持されている。スクイズ機構１１は、垂直面内（ｘｚ平面内）で正逆回動自在に支持されている。この回動フレーム２４の右側面には、上側及び下側のそれぞれに、上向きシリンダ３４及び下向きシリンダ３５が取り付けられている。ここで、回動フレーム２４の右側面とは、図４（ａ）におけるＡ４－Ａ４矢視で示される右側の側面であり、鋳枠旋回機構５の中心側の側面を意味する。また、前後方向とは、旋回方向の前後を結ぶ方向であり、造型ステーションにおける接線方向（ｙ方向）である。 As described above, the squeeze mechanism 11 is rotatably supported by the support shaft 23 attached to the center of the upper portion of the base 22 via the rotation frame 24. The squeeze mechanism 11 is supported so as to be able to rotate forward and backward in a vertical plane (in the xz plane). An upward cylinder 34 and a downward cylinder 35 are attached to the right side surface of the rotating frame 24 on the upper side and the lower side, respectively. Here, the right side surface of the rotating frame 24 is the right side surface indicated by the arrows A4-A4 in FIG. 4A, and means the side surface on the center side of the casting frame turning mechanism 5. The front-rear direction is a direction connecting the front and rear of the turning direction, and is a tangential direction (y direction) in the molding station.
　上向きシリンダ３４には、上昇降フレーム３２が設けられる。下向きシリンダ３５には、下昇降フレーム３３が設けられる。これら上下昇降フレーム３２，３３は、回動フレーム２４に装着された上向きシリンダ３４及び下向きシリンダ３５の伸縮作動によって相互に接近、離隔するようになっている。 The upper cylinder 34 is provided with an upper lifting frame 32. The downward cylinder 35 is provided with a lower lifting frame 33. The upper and lower elevating frames 32 and 33 are configured to approach and separate from each other by the expansion and contraction operation of the upward cylinder 34 and the downward cylinder 35 attached to the rotating frame 24.
　また、上昇降フレーム３２には、上側のスクイズプレート７を進退させるシリンダ３６が取り付けられる。また、下昇降フレーム３３には、下側のスクイズプレート８を進退させるシリンダ３７が取り付けられる。ここで、シリンダ３６及びシリンダ３７は、複数のシリンダからなるようにしてもよい。また、上昇降フレーム３２、下昇降フレーム３３を介して接続されるスクイズプレート７，８の水平面の大きさは、上鋳枠２及び下鋳枠３をそれぞれ押すことができる大きさを有している。 Further, a cylinder 36 for advancing and retracting the upper squeeze plate 7 is attached to the upper elevating frame 32. A cylinder 37 for advancing and retracting the lower squeeze plate 8 is attached to the lower lift frame 33. Here, the cylinder 36 and the cylinder 37 may be composed of a plurality of cylinders. Moreover, the size of the horizontal plane of the squeeze plates 7 and 8 connected via the upper elevating frame 32 and the lower elevating frame 33 has such a size that the upper casting frame 2 and the lower casting frame 3 can be pushed respectively. Yes.
　サンドタンク９は、砂充填を行う機構として機能し、図１及び図４に示すように基台２２の天井部の左寄り位置に装着されており、さらに、下端部に一対の砂導入ノズル９ａ，９ｂを有した二股形状とされている。また、サンドタンク９は、内面に、例えば超高分子量ポリエチレンを焼結させることにより製作され例えば１０μｍ～８０μｍ程度の孔を多数有するフィルタ部としての多孔質体が設けられ、この孔からエアを噴出させ浮遊流動化させながら砂充填を行う所謂エアレーションタンクとして構成されており、上鋳枠２及び下鋳枠３にそれぞれ独立して鋳型砂を低圧圧縮空気で充填（エアレーション充填）する。尚、低圧圧縮空気の圧力の大きさは、０．０５～０．１８ＭＰａが好ましい。 The sand tank 9 functions as a mechanism for filling the sand, and is mounted on the left side of the ceiling portion of the base 22 as shown in FIGS. 1 and 4, and further, a pair of sand introduction nozzles 9a, It has a bifurcated shape with 9b. Further, the sand tank 9 is manufactured by sintering ultra-high molecular weight polyethylene, for example, on the inner surface, and is provided with a porous body as a filter part having a large number of holes of about 10 μm to 80 μm, for example, and air is ejected from the holes. It is configured as a so-called aeration tank in which sand is filled while being floated and fluidized, and mold sand is filled into the upper casting frame 2 and the lower casting frame 3 independently with low-pressure compressed air (aeration filling). The pressure of the low pressure compressed air is preferably 0.05 to 0.18 MPa.
　抜き出し機構１５は、上下に重なった水平状態の上下鋳枠４内に上側から進入可能であり、該上下鋳枠４内の上下鋳型を下側に向けて押し出す押し出し部材３８を有している（図１７、図１８、図１９）。この押し出し部材３８は、基台２２の天井部に装着された下向きのシリンダ３９のピストンロッドの下端に固定されている。押し出し部材３８は、シリンダ３９の伸縮作動により昇降する。また、押し出し部材３８の下方には、上下鋳枠４から抜き出された上下鋳型を受ける鋳型受け用のテーブル４０が昇降可能に設けられている。テーブル４０は、上向きのシリンダ４１のピストンロッド先端に固定されており、シリンダ４１の伸縮作動により昇降する。 The extraction mechanism 15 is capable of entering from the upper side into the upper and lower horizontal casting frames 4 that are overlapped vertically, and has an extrusion member 38 that pushes the upper and lower molds in the upper and lower casting frames 4 downward. FIG. 17, FIG. 18, FIG. The pushing member 38 is fixed to the lower end of the piston rod of the downward cylinder 39 attached to the ceiling of the base 22. The pushing member 38 moves up and down by the expansion and contraction operation of the cylinder 39. A mold receiving table 40 for receiving the upper and lower molds extracted from the upper and lower casting frames 4 is provided below the pushing member 38 so as to be movable up and down. The table 40 is fixed to the tip of the piston rod of the upward cylinder 41 and moves up and down by the expansion and contraction operation of the cylinder 41.
　押し出し部材３８は、鋳型受け用のテーブル４０上に上下鋳枠４を載せた状態（図１７）で、押し出し部材３８を下降させる（図１８）。押し出し部材３８が上鋳型を押す位置まで下降した後は、押し出し部材３８及びテーブル４０を下降させて、上鋳枠２及び下鋳枠３内から鋳型１２，１３を抜き出す（図１８、図１９）。尚、上鋳型１２及び下鋳型１３は、スクイズされた時の力（砂に加わった圧縮力）によりその外周部分で上鋳枠２及び下鋳枠３に保持された状態となっているため、押し出し部材３８によりある程度上鋳枠２及び下鋳枠３から下に押し出された後は、この外周部の保持力が失われるので、テーブル４０のみを下降させて、鋳型の抜き出しを行う（図１９、図２０）。 The pushing member 38 lowers the pushing member 38 (FIG. 18) in a state where the upper and lower casting frames 4 are placed on the mold receiving table 40 (FIG. 17). After the pushing member 38 is lowered to the position for pushing the upper mold, the pushing member 38 and the table 40 are lowered, and the molds 12 and 13 are extracted from the upper casting frame 2 and the lower casting mold 3 (FIGS. 18 and 19). . In addition, since the upper mold 12 and the lower mold 13 are held in the upper casting frame 2 and the lower casting frame 3 at the outer peripheral portion by a force (compression force applied to the sand) when squeezed, After being pushed down from the upper casting frame 2 and the lower casting frame 3 to some extent by the pushing member 38, the holding force of this outer peripheral portion is lost, so only the table 40 is lowered and the mold is extracted (FIG. 19). , FIG. 20).
　孔形成機構８０は、例えば図１、図３、図１３、図１４及び図１６に示すように、鋳型抜き出しステーションに位置して設けられ、該位置に移動された上下鋳枠４のうち上鋳枠２内の鋳型１２に一又は複数の孔をあける機構である。孔形成機構８０は、上鋳型１２の上側から孔をあけるドリル部材８２を有している。ドリル部材８２は、一つに限られるものではなく、複数設けられていてもよい。 For example, as shown in FIGS. 1, 3, 13, 14 and 16, the hole forming mechanism 80 is provided at the mold extraction station, and the upper casting frame 4 is moved to the upper casting frame 4 and moved to the upper casting frame 4. This is a mechanism for making one or a plurality of holes in the mold 12 in the frame 2. The hole forming mechanism 80 has a drill member 82 that forms a hole from the upper side of the upper mold 12. The number of drill members 82 is not limited to one, and a plurality of drill members 82 may be provided.
　抜き出し機構１５は、上述したように、下鋳型１３の上に重ね合わせた状態とされた上鋳型１２を下側に向けて押すことにより該重ね合わせた状態とされた上鋳型１２及び下鋳型１３を上下鋳枠４から抜き出す押し出し部材３８を有している。この押し出し部材３８には、孔形成機構８０のドリル部材８２が挿通可能な挿通用開口部３８ａが設けられている。 As described above, the extraction mechanism 15 is configured such that the upper mold 12 and the lower mold 13 that are superposed on each other by pushing the upper mold 12 superposed on the lower mold 13 downward. Is extruded from the upper and lower casting frames 4. The pushing member 38 is provided with an insertion opening 38a through which the drill member 82 of the hole forming mechanism 80 can be inserted.
　孔形成機構８０及び押し出し部材３８が、上述のように構成（押し出し部材３８内部に孔形成機構８０が設けられている）されていることにより、２ステーション方式とされた鋳型造型装置１において、ガス抜き用の孔あけを行う機構を配置することを実現する。 Since the hole forming mechanism 80 and the extruding member 38 are configured as described above (the hole forming mechanism 80 is provided inside the extruding member 38), in the mold making apparatus 1 configured as a two-station system, the gas It is possible to arrange a mechanism for punching holes for punching.
　押し出し部材３８は、図１６（ｄ）に示すように、水平面内（ｘｙ平面内）における外周３８ｂが上鋳型１２の上面外周に沿う形状となるように形成されている。挿通用開口部３８ａは、押し出し部材３８の外周３８ｂから所定の幅を隔てて沿うような形状とされている。押し出し部材３８は、挿通用開口部３８ａの外側であって押し出し部材３８の外周３８ｂの内側である部分３８ｃで、上鋳型１２を下側に向けて押すことにより、上鋳型１２及び下鋳型１３を上下鋳枠４から抜き出す。 As shown in FIG. 16 (d), the extruding member 38 is formed so that the outer periphery 38 b in the horizontal plane (in the xy plane) is shaped along the outer periphery of the upper mold 12. The insertion opening 38a is shaped to extend along a predetermined width from the outer periphery 38b of the pushing member 38. The extruding member 38 is a portion 38c outside the insertion opening 38a and inside the outer periphery 38b of the extruding member 38, so that the upper mold 12 and the lower mold 13 are pushed by pushing the upper mold 12 downward. Pull out from the upper and lower casting frames 4.
　上述したように、押し出し部材３８は、上鋳型１２及び下鋳型１３の外周部における上鋳枠２及び下鋳枠３との保持力を失わせることで、上下鋳型１２，１３を抜き出すものであるが、上述の部分３８ｃで外周部付近を押し出すことで、適正な抜枠が可能となる。適正に抜枠できる理由を説明する。例えば、「押し出し部材」の押し出す部分を板状に形成して上鋳型の上面全面を押し出す構造とした場合には、経年劣化により、この板状の部分が撓んだ場合に、上面の真ん中の部分を先に押し出すこととなった場合に、鋳型外周部分の砂が鋳枠側に残ろうとすることにより、この外周部分に欠けが発生する可能性がある。これに対して、図１６（ｄ）等に示す押し出し部材３８のように、押し出す部分を外周部分のみを押し出す構造（部分３８ｃ）とすることにより、鋳枠２，３からの適正な抜き出しが可能となる。 As described above, the extruding member 38 extracts the upper and lower molds 12 and 13 by losing the holding force between the upper casting mold 2 and the lower casting mold 3 at the outer peripheral portions of the upper casting mold 12 and the lower casting mold 13. However, by extruding the vicinity of the outer peripheral portion with the above-described portion 38c, an appropriate frame can be obtained. Explain the reason why the frame can be properly drawn. For example, when the portion to be pushed out of the “extrusion member” is formed in a plate shape and the entire upper surface of the upper mold is pushed out, when the plate-like portion is bent due to deterioration over time, the middle of the upper surface When the part is pushed out first, the sand at the outer peripheral part of the mold tends to remain on the casting frame side, so that the outer peripheral part may be chipped. On the other hand, by using a structure (part 38c) for extruding only the outer peripheral part as the extruding member 38 shown in FIG. 16 (d) or the like, proper extraction from the casting frames 2 and 3 is possible. It becomes.
　ここで、孔形成機構８０のさらに具体的形状について、図２３～図２７を用いて説明する。孔形成機構８０は、ドリル部材８２を保持するドリルユニット８３と、このドリルユニット８３を押し出し部材３８内の中空空間内で上下に駆動するドリルユニット駆動機構としてのドリルユニット用シリンダ８４とを備える。ドリルユニット用シリンダ８４により、ドリルユニット８３及びこれに保持されたドリル部材８２は、押し出し部材３８に対して上下に駆動される。 Here, a more specific shape of the hole forming mechanism 80 will be described with reference to FIGS. The hole forming mechanism 80 includes a drill unit 83 that holds a drill member 82, and a drill unit cylinder 84 as a drill unit drive mechanism that drives the drill unit 83 up and down in a hollow space in the push-out member 38. The drill unit 83 and the drill member 82 held by the drill unit cylinder 84 are driven up and down with respect to the pushing member 38.
　尚、ここでは、ドリルユニット用シリンダ８４は、図２６に示すように、押し出し部材３８用（抜枠用）のシリンダ３９を挟むように２箇所に設けられている。これは、バランスよくドリルユニット８３を駆動させるためである。ドリルユニット用シリンダの数は、これに限られるものではなく、１箇所でもよく、４箇所でもよい。尚、シリンダ３９も、１箇所に限られるものではなく、複数設けられている。図２６に示す例では、シリンダ３９が１箇所であるので、バランスよく押し出し部材３８を駆動できるよう、シリンダ３９を挟むように一対のガイドロッド９９が設けられている。 Here, as shown in FIG. 26, the drill unit cylinders 84 are provided at two locations so as to sandwich the cylinder 39 for the extruding member 38 (for the frame). This is to drive the drill unit 83 with a good balance. The number of drill unit cylinders is not limited to this, and may be one or four. The number of cylinders 39 is not limited to one, and a plurality of cylinders 39 are provided. In the example shown in FIG. 26, since there is one cylinder 39, a pair of guide rods 99 are provided so as to sandwich the cylinder 39 so that the pushing member 38 can be driven in a balanced manner.
　ドリルユニット８３は、複数の取付用穴８５ａが設けられたボード部材８５と、ボード部材８５を取り付け及び取り外し可能なように保持できるユニット本体８６とを有している（図１６（ｄ）、図２３、図２４）。ユニット本体８６には、ローラー部材８７が設けられ、ボード部材８５を水平方向にスライド可能とする。ユニット本体８６には、図示しない位置決め及び固定を行う位置決めピンが設けられ、この位置決めピンにより、ローラー部材８７上をスライドされてユニット本体８６に挿入取り付けられたボード部材８５を固定可能とされている。 The drill unit 83 includes a board member 85 provided with a plurality of mounting holes 85a, and a unit main body 86 that can hold the board member 85 so that the board member 85 can be attached and removed (FIG. 16D). 23, FIG. 24). The unit main body 86 is provided with a roller member 87 so that the board member 85 can slide in the horizontal direction. The unit main body 86 is provided with positioning pins (not shown) for positioning and fixing, and by this positioning pin, the board member 85 that is slid on the roller member 87 and inserted and attached to the unit main body 86 can be fixed. .
　ドリル部材８２は、ボード部材８５の取付用穴８５ａのいずれかに選択的に取り付け及び取り外し可能とされている。例えば、ドリル部材８２は、ネジ構造により上下に分離可能とされ、ボード部材８５の取付用穴８５ａに雄ネジ部を挿通させた状態で、ボード部材８５の上下の部材８２ｂ，８２ｃのネジ構造を一体化することでボード部材８５に取り付けることが可能である。 The drill member 82 can be selectively attached to and detached from any of the attachment holes 85a of the board member 85. For example, the drill member 82 can be separated vertically by a screw structure, and the screw structure of the upper and lower members 82b and 82c of the board member 85 is made in a state where the male screw portion is inserted into the mounting hole 85a of the board member 85. It is possible to attach to the board member 85 by integrating.
　また、ボード部材８５上には、エア分岐用の導通分岐部８８が設けられている。導通分岐部８８は、エアホース９０を介してエア導通部８９に接続されている。エア導通部８９は、鋳型造型装置１に設けたエア供給部に接続される。導通分岐部８８は、エアホース９１を介してドリル部材８２に接続されている。導通分岐部８８は、エア導通部８９に供給されたエアを各ドリル部材８２に供給する。 Further, on the board member 85, a conduction branch portion 88 for branching air is provided. The conduction branch portion 88 is connected to the air conduction portion 89 via the air hose 90. The air conduction part 89 is connected to an air supply part provided in the mold making apparatus 1. The conduction branch portion 88 is connected to the drill member 82 via the air hose 91. The conduction branch portion 88 supplies the air supplied to the air conduction portion 89 to each drill member 82.
　ドリル部材８２は、供給されたエアにより、ドリル部８２ａが回転される。ドリル部材８２のドリル部８２ａを回転させた状態で、ドリルユニット用シリンダ８４により、ドリルユニット８３を下降させることで、上鋳型１２にガス抜き用孔１２ａを形成する（図２５）。尚、ガス抜き用孔１２ａ形成前に、上鋳型１２には、図２４に示すように、マッチプレート６の模型により、モールドキャビティ１２ｃとともに、ガス抜き用孔１２ａに接続されるガス抜き孔連通用空間１２ｂが形成される。尚、ここでは、エア方式のドリル部材８２としたが、電動駆動や油圧駆動の方式であってもよい。 The drill part 82a of the drill member 82 is rotated by the supplied air. In the state where the drill portion 82a of the drill member 82 is rotated, the drill unit 83 is lowered by the drill unit cylinder 84, thereby forming the gas vent hole 12a in the upper mold 12 (FIG. 25). Before the degassing hole 12a is formed, the upper mold 12 is connected to the degassing hole 12a connected to the degassing hole 12a together with the mold cavity 12c by a model of the match plate 6 as shown in FIG. A space 12b is formed. Although the pneumatic drill member 82 is used here, an electric drive or hydraulic drive may be used.
　ドリルユニット８３を有する孔形成機構８０は、形成するガス抜き孔の水平面内（ｘｙ平面内）における位置の変更を可能とする。すなわち、形成するガス抜き孔の位置を変更する場合には、ボード部材８５に形成された複数の取付用穴８５ａのうち所望の位置に対応する取付用穴８５ａにドリル部材８２を取り付ければよい。また、ガス抜き孔の数を変更することも可能である。該孔形成機構８０は、マッチプレートを交換し、模型の位置が変更されたとき等に有効である。ドリル部材８２の位置を変更する際には、図２７に示すように、上鋳枠２を下降させるとともに、押し出し部材３８を下降させた状態で行うことで、作業者にとって作業が行いやすくなる。また、上述のような構成により、ドリル部材８２の位置変更作業を簡単に行うことができる。 The hole forming mechanism 80 having the drill unit 83 enables the position of the gas vent hole to be formed to be changed in the horizontal plane (in the xy plane). That is, when changing the position of the gas vent hole to be formed, the drill member 82 may be attached to the mounting hole 85a corresponding to a desired position among the plurality of mounting holes 85a formed in the board member 85. It is also possible to change the number of vent holes. The hole forming mechanism 80 is effective when the match plate is exchanged and the position of the model is changed. When the position of the drill member 82 is changed, as shown in FIG. 27, the upper cast frame 2 is lowered and the pushing member 38 is lowered, so that the operator can easily perform the work. Moreover, the position change operation | work of the drill member 82 can be easily performed by the above structures.
　また、鋳型造型装置１には、孔形成機構８０と同じステーション（鋳型抜き出しステーション）の上鋳枠２の下方に砂受け機構１００を備える。砂受け機構１００は、孔形成機構８０の孔あけの際に孔あけにより発生する砂を受けて装置外部に排出する。尚、ここでは、砂受け機構１００は、回転フレーム４３に取り付けられる構成とし、それぞれのステーション（鋳型抜き出しステーション、造型ステーション）に各１個ずつ配置されるが、これに限られるものではない。すなわち、砂受け機構１００は、少なくとも鋳型抜き出しステーションに位置する場合に砂受けとして機能すればよく、例えば、回転フレーム４３以外の鋳枠とともに旋回しない箇所に取り付けられる場合には、鋳型抜き出しステーションに設けられればよい。 Also, the mold making apparatus 1 includes a sand receiving mechanism 100 below the upper casting frame 2 in the same station (mold extraction station) as the hole forming mechanism 80. The sand receiving mechanism 100 receives sand generated by drilling when the hole forming mechanism 80 is drilled and discharges it to the outside of the apparatus. Here, the sand receiving mechanism 100 is configured to be attached to the rotating frame 43, and one sand receiving mechanism 100 is disposed at each station (mold extraction station, molding station), but is not limited thereto. That is, the sand receiving mechanism 100 only needs to function as a sand receiver when it is positioned at least at the mold extraction station. For example, when the sand receiving mechanism 100 is attached to a portion that does not turn together with the casting frame other than the rotating frame 43, the sand receiving mechanism 100 is provided at the mold extraction station. It only has to be done.
　砂受け機構１００は、図１４、図１６、図２８及び図２９に示すように、回動可能に設けられた第１板状部材１０１と、第１板状部材１０１の先端側から突出する方向Ｙ１及びその反対方向Ｙ２に移動可能に設けられる第２板状部材１０２とを有する。第２板状部材１０２は、第１板状部材１０１が所定の回動位置にあるときに第１板状部材１０１に対して、突出する方向に飛び出された位置で孔形成機構８０による孔あけにより発生する砂を受けるための砂受け用の部材である。 As shown in FIGS. 14, 16, 28, and 29, the sand receiving mechanism 100 includes a first plate-like member 101 that is rotatably provided, and a direction that protrudes from the distal end side of the first plate-like member 101. Y2 and a second plate member 102 provided to be movable in the opposite direction Y2. The second plate-like member 102 is punched by the hole forming mechanism 80 at a position where the second plate-like member 101 protrudes in a protruding direction with respect to the first plate-like member 101 when the first plate-like member 101 is at a predetermined rotation position. This is a sand receiving member for receiving the sand generated by.
　孔あけ時以外（孔あけ前及び孔あけ後）には、第１板状部材１０１は、第２板状部材１０２が垂直方向を向くような状態とされる。また、第２板状部材１０２は、第１板状部材１０１に対して引き込んだ状態とされる（図１６（ａ）及び図２９（ａ））。 Except at the time of drilling (before and after drilling), the first plate member 101 is in a state in which the second plate member 102 faces in the vertical direction. Further, the second plate-like member 102 is pulled into the first plate-like member 101 (FIGS. 16A and 29A).
　一方、孔あけ時には、第１板状部材１０１は、先端側が基端側より上側に位置するように、水平方向に対して傾斜した状態とされる。このとき第２板状部材１０２は、第１板状部材１０１に対して、突出する方向Ｙ１に飛び出された状態とされる（図１６（ｂ）及び図２９（ｂ））。 On the other hand, at the time of drilling, the first plate-like member 101 is inclined with respect to the horizontal direction so that the distal end side is located above the proximal end side. At this time, the second plate-like member 102 is protruded from the first plate-like member 101 in the protruding direction Y1 (FIGS. 16B and 29B).
　また、砂受け機構１００は、第１板状部材１０１を回動させる第１シリンダ１０３と、第２板状部材１０２を駆動する第２シリンダ１０４とを有している。第２シリンダ１０４は、第２板状部材１０２を第１板状部材１０１に対して飛び出す動作及び引き込む動作をするよう駆動する。 The sand receiving mechanism 100 has a first cylinder 103 that rotates the first plate-like member 101 and a second cylinder 104 that drives the second plate-like member 102. The second cylinder 104 drives the second plate-like member 102 so as to pop out and retract the first plate-like member 101.
　ここで、第１シリンダ１０３により第１板状部材１０１の回動動作について詳しく説明する。第１板状部材１０１の基端部は、回動中心用の固定部１０１ａとされ、第１板状部材１０１は、回動自在とされている。固定部１０１ａから延長して設けられた延設部材１０１ｂは、第１シリンダ１０３の直線運動を回動運動に変換する機能を有する。延設部材１０１ｂの先端部分１０１ｃには、第１シリンダ１０３のロッド１０３ｂの先端１０３ｃが取り付けられている。一方で、第１シリンダ１０３は、基端側が固定部１０３ａとされるとともに、固定部１０３ａを中心に回動自在に設けられている。 Here, the rotation operation of the first plate member 101 by the first cylinder 103 will be described in detail. The base end portion of the first plate-like member 101 is a fixed portion 101a for turning center, and the first plate-like member 101 is turnable. The extending member 101b provided extending from the fixed portion 101a has a function of converting the linear motion of the first cylinder 103 into a rotational motion. The tip 103c of the rod 103b of the first cylinder 103 is attached to the tip 101c of the extending member 101b. On the other hand, the first cylinder 103 has a base end side as a fixed portion 103a, and is provided to be rotatable around the fixed portion 103a.
　図１６（ａ）及び図２９（ａ）に示すような状態から、第１シリンダ１０３のロッド１０３ｂが伸びる方向に駆動されると、第１シリンダ１０３の上側が図中左方向に少し傾斜するとともに、第１板状部材１０１の上側が右方向に大きく傾斜することとなる。それとともに、第２シリンダ１０４のロッド１０４ｂが伸ばされる方向に駆動される。ロッド１０４ｂの先端１０４ｃには、取付部材１０２ａを介して第２板状部材１０２の先端に取り付けられている。よって、ロッド１０４ｂが伸ばされることにより、第１板状部材１０１に対して、突出する方向Ｙ１に飛び出された状態とされる（図１６（ｂ）及び図２９（ｂ））。 When the rod 103b of the first cylinder 103 is driven in the extending direction from the state shown in FIGS. 16A and 29A, the upper side of the first cylinder 103 is slightly inclined leftward in the figure. The upper side of the first plate member 101 is greatly inclined in the right direction. At the same time, the rod 104b of the second cylinder 104 is driven in the extending direction. The rod 104b is attached to the tip 104c of the second plate-like member 102 via the attachment member 102a. Therefore, when the rod 104b is extended, the first plate member 101 is protruded in the protruding direction Y1 (FIGS. 16B and 29B).
　このとき、第１板状部材及び第２板状部材は、水平方向（ｘｙ平面）に対して傾斜した状態とされ、この状態で孔形成機構８０による孔あけが行われることで、孔あけにより発生する砂を受ける。尚、水平方向ＬＨに対する傾斜角度θとしては、５°～４５°の範囲が採用される。５°より傾斜が小さい場合や水平状態でも砂受けとして機能するが、外部に排出する際に、先端側から僅かに下鋳型側にこぼれる可能性があり、上記角度範囲であればこの可能性を小さくできる。また、４５°より傾斜が大きい場合には、第１及び第２板状部材１０１，１０２の大きさが大きくなってしまう。また、上記傾斜角度θは、２０°～４０°としてもよい。 At this time, the first plate-like member and the second plate-like member are inclined with respect to the horizontal direction (xy plane), and in this state, the hole forming mechanism 80 performs the drilling. Receive generated sand. The inclination angle θ with respect to the horizontal direction LH is in the range of 5 ° to 45 °. It functions as a sand receiver even when the inclination is smaller than 5 ° or in a horizontal state, but it may spill slightly from the tip side to the lower mold side when discharged to the outside. Can be small. Further, when the inclination is larger than 45 °, the size of the first and second plate- like members 101 and 102 is increased. The inclination angle θ may be 20 ° to 40 °.
　図１６（ｂ）及び図２９（ｂ）に示すような状態で、孔形成機構８０により孔あけが行われると、第２板状部材１０２上に、孔あけにより発生する砂を受けた状態である。そして、ロッド１０３ｂ及びロッド１０４ｂが縮む方向に駆動されることで、第１板状部材１０１は垂直方向に向くように駆動され、第２板状部材１０２は、第１板状部材１０１に対して引き込む方向Ｙ２に駆動される。これにより、第２板状部材１０２上に受けた砂は、固定部１０３ａの下方側に排出され、すなわち、装置外部に排出される。固定部１０３ａの下方に位置して、砂受け容器等を配置するようにしてもよい。 In the state as shown in FIG. 16B and FIG. 29B, when the hole forming mechanism 80 performs the drilling, the second plate member 102 receives the sand generated by the drilling. is there. Then, by driving the rod 103b and the rod 104b in the contracting direction, the first plate-like member 101 is driven so as to face in the vertical direction, and the second plate-like member 102 is moved relative to the first plate-like member 101. Driven in the pull-in direction Y2. Thereby, the sand received on the 2nd plate-shaped member 102 is discharged | emitted below the fixing | fixed part 103a, ie, is discharged | emitted outside the apparatus. You may make it arrange | position a sand receptacle container etc. in the downward direction of the fixing | fixed part 103a.
　このように砂受け機構１００は、孔形成機構８０の孔あけにより発生し、下鋳枠３内の鋳型や中子の上に不要な砂が堆積することを防止して、すなわち鋳物不良を防止する。また、第１板状部材１０１、第２板状部材１０２、第１シリンダ１０３、第２シリンダ１０４を備えることにより、コンパクトな構成でその機能を発揮でき、装置全体の構成も簡素化及び小型化できる。上述した、砂受け機構（「砂受け装置」ともいう。）１００は、抜枠鋳型造型装置のみではなく、造型した鋳型を鋳枠とともに搬出する枠付鋳型造型装置にも用いることが可能であり、さらに、鋳型造型装置を有する鋳型造型ラインにも設けることが可能である。 Thus, the sand receiving mechanism 100 is generated by drilling the hole forming mechanism 80, and prevents unnecessary sand from accumulating on the mold and core in the lower casting frame 3, that is, prevents casting defects. To do. Further, by providing the first plate member 101, the second plate member 102, the first cylinder 103, and the second cylinder 104, the function can be exhibited with a compact configuration, and the configuration of the entire apparatus is simplified and miniaturized. it can. The above-described sand receiving mechanism (also referred to as “sand receiving device”) 100 can be used not only in a blank frame mold making device but also in a frame mold making device for carrying out a molded mold together with a casting frame. Furthermore, it can be provided in a mold making line having a mold making apparatus.
　また、孔形成機構８０及び砂受け機構１００は、ガス抜き孔を自動で形成することを実現し、これにより、鋳物にガス欠陥による不良が発生することを防止できる。鋳型造型装置１は、従来では２ステーション方式の抜枠鋳型造型装置に配置することが困難であると考えられていた孔あけ装置を設け、これにより、ガス抜き孔あけの自動化を実現した。 Further, the hole forming mechanism 80 and the sand receiving mechanism 100 realize the automatic formation of the gas vent holes, thereby preventing the casting from being defective due to the gas defect. The mold making apparatus 1 is provided with a hole punching apparatus that has been conventionally considered difficult to be placed in a two-station type blank frame mold making apparatus, thereby realizing automation of gas vent hole making.
　鋳枠旋回機構５は、図４、図５、図１２、図１３及び図１４に示すように、上下鋳枠４を保持して旋回される回転フレーム４３と、回転フレーム駆動手段４４とを有している。図１４に示すように、回転フレーム駆動手段４４は、ロッド４４ａの先端が回転フレーム４３の取付部４３ａに取り付けられ、ロッド４４ａを伸縮させることにより、回転軸Ｍ１を回転軸として回転フレーム４５を一方向及び反対方向に１８０度反転させる。該鋳枠旋回機構５は、この正転及び反転動作により、２対の上下鋳枠４を造型ステーション及び鋳型抜き出しステーションに順番に旋回させることができる。 As shown in FIGS. 4, 5, 12, 13, and 14, the casting frame turning mechanism 5 includes a rotating frame 43 that is turned while holding the upper and lower casting frames 4, and a rotating frame driving unit 44. is doing. As shown in FIG. 14, the rotating frame driving means 44 is configured such that the tip of the rod 44a is attached to the mounting portion 43a of the rotating frame 43, and the rod 44a is expanded and contracted so that the rotating frame 45 is moved around the rotating shaft M1. Reverse 180 degrees in direction and opposite direction. The casting frame turning mechanism 5 can turn the two pairs of upper and lower casting frames 4 sequentially to the molding station and the mold extraction station by the forward rotation and the reversing operation.
　そして、回転フレーム４３の上部には支持部材４６が装着されている（図１～図３）。支持部材４６には、垂直方向の下方へ伸び且つ前後方向へ所要の間隔を置いて対をなす２対のガイドロッド４７が設けられている。 A support member 46 is mounted on the upper portion of the rotating frame 43 (FIGS. 1 to 3). The support member 46 is provided with two pairs of guide rods 47 that extend downward in the vertical direction and make a pair at a predetermined interval in the front-rear direction.
　また、２対のガイドロッド４７には、それぞれ１対ごとに、上鋳枠２の係合凹部２ｂを掛止め可能な上掛止部材４８が上下摺動自在に架けられて設けられている。各上掛止部材４８には、それぞれ、回転フレーム４３に装着した上向きのシリンダ４９のピストンロッドの先端が固着されている。各上掛止部材４８は、この上向きのシリンダ４９の伸縮作動によって昇降動作される。さらに、２対のガイドロッド４７の下端には、下鋳枠３の係合凹部３ｂを掛止可能な下掛止部材５０が固定されている。上掛止部材４８には、係合凹部２ｂに係合する突起部４８ｂが設けられる。下掛止部材５０には、係合凹部３ｂに係合する突起部５０ｂが設けられる。 Further, two pairs of guide rods 47 are provided with an upper hooking member 48 that can hook the engaging recess 2b of the upper casting frame 2 in a vertically slidable manner. The tip of the piston rod of the upward cylinder 49 attached to the rotating frame 43 is fixed to each upper latch member 48. Each upper latch member 48 is moved up and down by the expansion and contraction of the upward cylinder 49. Further, a lower latching member 50 capable of latching the engaging recess 3 b of the lower casting frame 3 is fixed to the lower ends of the two pairs of guide rods 47. The upper latch member 48 is provided with a protrusion 48b that engages with the engagement recess 2b. The lower latch member 50 is provided with a protrusion 50b that engages with the engagement recess 3b.
　また、鋳型抜き出しステーションには、上鋳枠２及び下鋳枠３から抜き出し機構１５により鋳型受け用のテーブル４０上に抜き出された上下鋳型１２，１３を、押し出して排出する鋳型排出機構５１が設けられている（図２１、図２２）。 Further, at the mold extraction station, there is a mold discharge mechanism 51 for extruding the upper and lower molds 12 and 13 extracted from the upper casting frame 2 and the lower casting frame 3 onto the mold receiving table 40 by the extraction mechanism 15. (FIGS. 21 and 22).
　次に、以上のように構成された鋳型造型装置１を用いた鋳型造型方法について説明する。この鋳型造型方法は、上述したように、鋳枠無し上下鋳型を造型するものである。図３０は、鋳型造型方法のフローチャートである。 Next, a mold making method using the mold making apparatus 1 configured as described above will be described. As described above, this mold making method forms the upper and lower molds without a casting frame. FIG. 30 is a flowchart of the mold making method.
　まず、図３０に示すように、図４に示すような基本姿勢（「原位置」ともいう）から回転フレーム４３が回転する。これにより、造型ステーションに位置した上下鋳枠２，３と、鋳型抜き出しステーションに位置した上下鋳枠２，３が入れ替わる（図５）。すなわち造型ステーションに処理対象の上下鋳枠４が移動する（Ｓ１０）。 First, as shown in FIG. 30, the rotating frame 43 rotates from a basic posture (also referred to as “original position”) as shown in FIG. Thereby, the upper and lower casting frames 2 and 3 positioned at the molding station and the upper and lower casting frames 2 and 3 positioned at the mold extraction station are switched (FIG. 5). That is, the upper and lower casting frames 4 to be processed move to the molding station (S10).
　次に、図５に示す状態から搬入出機構２１の回転シリンダ２６が回転駆動する。これにより、図６に示すように、Ｒ３方向に回動される一対のアーム２７によってマッチプレート６が水平状態の上鋳枠２及び下鋳枠３の間に搬入される（Ｓ１２）。 Next, the rotary cylinder 26 of the carry-in / out mechanism 21 is rotationally driven from the state shown in FIG. As a result, as shown in FIG. 6, the match plate 6 is carried between the upper casting frame 2 and the lower casting frame 3 in a horizontal state by the pair of arms 27 rotated in the R3 direction (S12).
　次に、スクイズ機構１１は、上向きシリンダ３４及び下向きシリンダ３５を収縮作動して、上下昇降フレーム３２，３３を介して上鋳枠２及び下鋳枠３を相互に接近させる。スクイズ機構１１により互いに接近された上下鋳枠４は、マッチプレート６を挟持した状態とされる（Ｓ１４）。この状態でスクイズ機構１１は、シリンダ３６，３７をそれぞれ所要長さ伸長作動する。シリンダ３６，３７は、上スクイズプレート７及び下スクイズプレート８を上鋳枠２及び下鋳枠３内にそれぞれ挿入させる。上スクイズプレート７及び下スクイズプレート８は、上鋳枠２及び下鋳枠３並びにマッチプレート６とともに、上下２個の造型空間（上造型空間及び下造型空間）を形成する（図７、Ｓ１６）。 Next, the squeeze mechanism 11 contracts the upward cylinder 34 and the downward cylinder 35 to bring the upper casting frame 2 and the lower casting frame 3 closer to each other via the vertical lifting frames 32 and 33. The upper and lower casting frames 4 brought close to each other by the squeeze mechanism 11 are in a state of holding the match plate 6 (S14). In this state, the squeeze mechanism 11 extends the cylinders 36 and 37 to the required length. The cylinders 36 and 37 insert the upper squeeze plate 7 and the lower squeeze plate 8 into the upper casting frame 2 and the lower casting frame 3, respectively. The upper squeeze plate 7 and the lower squeeze plate 8 form two upper and lower molding spaces (upper molding space and lower molding space) together with the upper casting frame 2, the lower casting frame 3, and the match plate 6 (FIG. 7, S16). .
　回動機構１０は、ロッド１０ａを伸長させて、図８に示すように、スクイズ機構１１を支持軸２３を中心にしてＲ１方向へ回動させる。回動機構１０は、この際に、上鋳枠２、下鋳枠３及びマッチプレート６を垂直状態にする。上鋳枠２及び下鋳枠３の側壁に設けられた砂導入口２ａ，３ａは、上方に向くように上方に移動される。さらに、上下鋳枠４の砂導入口２ａ，３ａは、エアレーションタンクとして構成されたサンドタンク９の二股形状の下端部に設けられた砂導入ノズル９ａ，９ｂに当接される（Ｓ１８）。 The rotation mechanism 10 extends the rod 10a to rotate the squeeze mechanism 11 about the support shaft 23 in the R1 direction as shown in FIG. At this time, the rotation mechanism 10 brings the upper casting frame 2, the lower casting frame 3, and the match plate 6 into a vertical state. The sand inlets 2a and 3a provided on the side walls of the upper casting frame 2 and the lower casting frame 3 are moved upward so as to face upward. Furthermore, the sand introduction ports 2a and 3a of the upper and lower casting frames 4 are brought into contact with sand introduction nozzles 9a and 9b provided at the lower end of the bifurcated shape of the sand tank 9 configured as an aeration tank (S18).
　次に、砂充填機構としてのサンドタンク９は、図９に示すように、砂導入口２ａ，３ａを介して上造型空間及び下造型空間に鋳型砂を充填する（Ｓ２０）。続いて、図１０に示すように、シリンダ３６，３７を駆動して、上スクイズプレート７及び下スクイズプレート８をマッチプレート６に近接する方向に移動させ、上下２個の造型空間内の鋳型砂をスクイズする（Ｓ２２）。 Next, as shown in FIG. 9, the sand tank 9 as the sand filling mechanism fills the upper molding space and the lower molding space with the molding sand through the sand introduction ports 2a and 3a (S20). Subsequently, as shown in FIG. 10, the cylinders 36 and 37 are driven to move the upper squeeze plate 7 and the lower squeeze plate 8 in the direction close to the match plate 6, and the mold sand in the two upper and lower molding spaces. Is squeezed (S22).
　回動機構１０は、図１０に示すように、上鋳枠２、下鋳枠３及びマッチプレート６を上述の回動方向Ｒ１と反対方向Ｒ２に回動させて水平状態とする（図１１）。 As shown in FIG. 10, the rotation mechanism 10 rotates the upper casting frame 2, the lower casting frame 3, and the match plate 6 in the direction R2 opposite to the above-described rotation direction R1 to obtain a horizontal state (FIG. 11). .
　次いで、上向きシリンダ３４及び下向きシリンダ３５は、伸長動作して上下昇降フレーム３２，３３を相互に離間させる。続いて、鋳枠旋回機構５は、シリンダ４９を伸長作動して、鋳型砂をスクイズしてなる鋳型を内在した上鋳枠２を上掛止部材４８によって吊り上げる。これにより、マッチプレート６が上鋳枠２及び下鋳枠３から抜型される（図１２、Ｓ２４）。このように、旋回部分に設けたシリンダ４９は、上鋳枠２をマッチプレート６から分離する。下鋳枠３は、シリンダ３５により鋳枠旋回機構５の下掛止部材５０上に載せられる。 Next, the upward cylinder 34 and the downward cylinder 35 are extended to separate the vertical lift frames 32 and 33 from each other. Subsequently, the casting frame turning mechanism 5 extends the cylinder 49 and lifts the upper casting frame 2 containing the mold formed by squeezing the mold sand by the upper retaining member 48. As a result, the match plate 6 is removed from the upper casting frame 2 and the lower casting frame 3 (FIG. 12, S24). In this way, the cylinder 49 provided in the turning portion separates the upper casting frame 2 from the match plate 6. The lower casting frame 3 is placed on the lower retaining member 50 of the casting frame turning mechanism 5 by the cylinder 35.
　次いで、回転シリンダ２６は、回転作動して、一対のアーム２７によってマッチプレート６を上鋳枠２及び下鋳枠３の間から搬出する（Ｓ２６）。続いて、鋳枠旋回機構５は、回転フレーム４３を回転させ、鋳型１２，１３が形成された上下鋳枠４を造型ステーションから鋳型抜き出しステーションに移動させる。同時に、鋳型抜き出しステーションで鋳型１２，１３が抜き出された上下鋳枠４が造型ステーションに移動される（図１３、Ｓ２８）。 Next, the rotating cylinder 26 is rotated to carry out the match plate 6 from between the upper casting frame 2 and the lower casting frame 3 by the pair of arms 27 (S26). Subsequently, the casting frame turning mechanism 5 rotates the rotating frame 43 to move the upper and lower casting frames 4 on which the molds 12 and 13 are formed from the molding station to the mold extraction station. At the same time, the upper and lower casting frames 4 from which the molds 12 and 13 have been extracted at the mold extraction station are moved to the molding station (FIG. 13, S28).
　次に、図１４に示すように、孔形成機構８０によりガス抜き孔の形成が行われる（Ｓ３０）。同時に、ガス抜き孔の形成により発生する砂が砂受け機構１００により回収されて装置外部に排出される。次に、図１５に示すように、中子１１０の配置（中子セット）が作業者により行われる（Ｓ３２）。尚、中子セットは、図１４に示すガス抜き用孔の形成の前に行われるようにしてもよい。また、中子セットを行わないようにしてもよい。 Next, as shown in FIG. 14, a vent hole is formed by the hole forming mechanism 80 (S30). At the same time, the sand generated by the formation of the vent holes is collected by the sand receiving mechanism 100 and discharged outside the apparatus. Next, as shown in FIG. 15, the placement of the core 110 (core set) is performed by the operator (S32). The core set may be performed before the formation of the gas venting holes shown in FIG. Further, the core setting may not be performed.
　シリンダ４９は、収縮作動されることにより、鋳型１２を内在する上鋳枠２を、上掛止部材４８を介して下降させ、図１７に示すように、下鋳枠３の上に載置して、上下鋳枠４を重ね合わせる（Ｓ３４）。それとともに、鋳型抜き出し機構１５のシリンダ４１の伸長作動により、鋳型受け用のテーブル４０を上昇させ、テーブル４０上に上下鋳枠４内の上下鋳型１２，１３を載せる。 When the cylinder 49 is contracted, the upper casting frame 2 containing the mold 12 is lowered via the upper retaining member 48 and placed on the lower casting frame 3 as shown in FIG. Then, the upper and lower cast frames 4 are overlapped (S34). At the same time, the mold receiving table 40 is raised by the extension operation of the cylinder 41 of the mold extraction mechanism 15, and the upper and lower molds 12 and 13 in the upper and lower casting frames 4 are placed on the table 40.
　次いで、鋳型抜き出し機構１５のシリンダ３９を伸長作動して、押し出し部材３８が上鋳型１２を押す位置まで下降させるとともに、その後には、押し出し部材３８及びテーブル４０を、相互に連動させながら下降させ、上鋳枠２及び下鋳枠３内から鋳型を抜き出す（図１８、図１９、図２０及び図２１、Ｓ３６）。続いて、鋳型排出機構５１のロッド５１ａが伸ばされることによって図２２に示すように、テーブル４０上の上下鋳型１２，１３を図中矢印Ｗ方向に押し出す（Ｓ３８）。 Next, the cylinder 39 of the mold extraction mechanism 15 is extended to lower the pusher member 38 to a position where the upper mold 12 is pushed. Thereafter, the pusher member 38 and the table 40 are lowered while interlocking with each other. The mold is extracted from the upper and lower casting frames 2 and 3 (FIGS. 18, 19, 20, 21 and S36). Subsequently, as shown in FIG. 22, the upper and lower molds 12 and 13 on the table 40 are pushed out in the direction of arrow W in the figure by extending the rod 51a of the mold discharge mechanism 51 (S38).
　以上のように、鋳型造型方法は、次の工程を有する。すなわち、Ｓ１４の工程においては、造型ステーションに位置して垂直方向に対向する上鋳枠２及び下鋳枠３からなる上下鋳枠４を相互に近接方向に移動させることによってマッチプレート６を挟持する。Ｓ１６の工程においては、マッチプレート６を挟持した上下鋳枠４のそれぞれの開口部に一対のスクイズプレート７，８を挿入させて上造型空間及び下造型空間を形成する。Ｓ１８の工程においては、上造型空間及び下造型空間を形成した上下鋳枠４を、水平方向を軸とした軸周り方向に回動することで、該上下鋳枠４のそれぞれの側壁に設けられた砂導入口２ａ，３ａが、サンドタンク９の下端部から下方に向けて形成された一対の砂導入ノズル９ａ，９ｂから砂充填可能となるように位置させる。Ｓ２０の工程においては、サンドタンク９から前記砂導入口２ａ，３ａを介して上造型空間及び下造型空間に鋳型砂を充填する。Ｓ２２の工程においては、一対のスクイズプレート７，８をマッチプレート６側に移動させて上造型空間及び下造型空間内の鋳型砂を圧縮する。Ｓ２４の工程においては、上下鋳枠４が垂直方向に対向する姿勢に戻るように回動する。そしてＳ２４の工程においては、上下鋳枠４を相互に離間させる方向に移動させることで、上下鋳枠内に形成された鋳型からマッチプレート６を分離する。Ｓ２８の工程においては、造型ステーションにおいて鋳型が形成された上下鋳枠を鋳型抜き出しステーションに移動させるように該上下鋳枠を旋回する。Ｓ３０の工程においては、該鋳型抜き出しステーションに移動された上下鋳枠のうち上鋳枠内の鋳型に孔形成機構により一又は複数の孔をあける。Ｓ３４の工程においては、該上下鋳枠を相互に近接する方向に移動させることで、それぞれ鋳型が形成された上下鋳枠を重ね合わせる。Ｓ３６の工程においては、重ね合わせた上下鋳枠内に進入可能な部材を有する鋳型抜き出し機構１５により上下鋳枠内のそれぞれの鋳型を重ね合わせた状態で該上下鋳枠から抜き出す。また、当該鋳型造型方法は、上述の造型ステーション、鋳型抜き出しステーションからなる２つのステーションには、それぞれのステーションに応じた工程の状態とされる、それぞれ上鋳枠及び下鋳枠からなる２対の上下鋳枠が設けられ、該上下鋳枠を旋回させて２つのステーション内に移動させることで、順次重ね合わされた鋳枠無しの上下鋳型を造型する。 As described above, the mold making method has the following steps. That is, in the step of S14, the match plate 6 is sandwiched by moving the upper and lower casting frames 4 made up of the upper casting frame 2 and the lower casting frame 3 that are located at the molding station and face each other in the vertical direction in the proximity of each other. . In the process of S16, a pair of squeeze plates 7 and 8 are inserted into the respective openings of the upper and lower casting frames 4 sandwiching the match plate 6 to form an upper molding space and a lower molding space. In the process of S18, the upper and lower casting frames 4 forming the upper molding space and the lower molding space are rotated on the axis around the horizontal direction so as to be provided on the respective side walls of the upper and lower casting frames 4. The sand introduction ports 2a and 3a are positioned so that sand can be filled from a pair of sand introduction nozzles 9a and 9b formed downward from the lower end of the sand tank 9. In step S20, the molding sand is filled from the sand tank 9 into the upper molding space and the lower molding space through the sand inlets 2a and 3a. In step S22, the pair of squeeze plates 7 and 8 are moved to the match plate 6 side to compress the molding sand in the upper molding space and the lower molding space. In the process of S24, the upper and lower cast frames 4 are rotated so as to return to the posture opposed in the vertical direction. In the step S24, the match plate 6 is separated from the mold formed in the upper and lower casting frames by moving the upper and lower casting frames 4 in directions away from each other. In step S28, the upper and lower casting frames are turned so that the upper and lower casting frames on which the molds are formed at the molding station are moved to the mold extraction station. In the step of S30, one or a plurality of holes are made by the hole forming mechanism in the mold in the upper casting frame among the upper and lower casting frames moved to the mold extraction station. In the step S34, the upper and lower casting frames on which the molds are formed are overlapped by moving the upper and lower casting frames in directions close to each other. In the process of S36, the respective molds in the upper and lower casting frames are extracted from the upper and lower casting frames in a state of being overlapped by the mold extracting mechanism 15 having members that can enter the stacked upper and lower casting frames. In addition, the mold making method includes two pairs of the above-described molding station and mold extraction station, and two pairs of upper and lower casting frames each having a process state corresponding to each station. Upper and lower casting frames are provided, and the upper and lower casting frames are swung and moved into two stations, thereby forming the upper and lower casting molds without the casting frames that are sequentially stacked.
　この鋳型造型方法は、上述の特徴的な構成を備えることにより、ガス抜き孔１２ａを形成することで、鋳物にガス欠陥による不良が発生するのを防止することができる。よって、鋳物品質を向上することを実現する。 This mold making method is provided with the above-described characteristic configuration, and by forming the gas vent hole 12a, it is possible to prevent the casting from being defective due to a gas defect. Therefore, the casting quality is improved.
　また、一実施形態に係る鋳型造型方法は、孔形成機構と同じステーションに位置して設けられた砂受け機構１００により、孔あけにより発生する砂を受けて排出してもよい。このように、孔あけ時に発生する削られた砂を下鋳型に落とさないようにすることで、ガス孔あけの自動化を実現するとともに、この砂により鋳物品質が劣化することを防止できる。 Also, in the mold making method according to an embodiment, sand generated by drilling may be received and discharged by the sand receiving mechanism 100 provided at the same station as the hole forming mechanism. In this way, by preventing the shaved sand generated at the time of drilling from dropping into the lower mold, it is possible to realize automation of gas drilling and to prevent casting quality from being deteriorated by this sand.
　以上のように、本実施形態に係る鋳型造型装置１は、それぞれ上鋳枠２及び下鋳枠３からなる２対の上下鋳枠４と、鋳枠旋回機構５と、マッチプレート６と、一対のスクイズプレート７，８と、サンドタンク９と、抜き出し機構１５と、孔形成機構８０とを備える。この鋳型造型装置１は、孔形成機構８０がガス抜き孔１２ａを形成することで、鋳物にガス欠陥による不良が発生するのを防止することができる。よって、鋳物品質を向上することを実現する。 As described above, the mold making apparatus 1 according to the present embodiment includes the two pairs of upper and lower casting frames 4 each including the upper casting frame 2 and the lower casting frame 3, the casting frame turning mechanism 5, the match plate 6, and the pair. Squeeze plates 7 and 8, a sand tank 9, an extraction mechanism 15, and a hole forming mechanism 80. The mold making apparatus 1 can prevent a defect due to a gas defect from occurring in the casting by the hole forming mechanism 80 forming the gas vent hole 12a. Therefore, the casting quality is improved.
　また、鋳型造型装置１は、砂受け機構１００により孔あけ時に発生する削られた砂を受けて装置外部に排出することで下鋳型や中子の上に落とさないようにすることで、ガス孔あけの自動化を実現するとともに、この砂により鋳物品質が劣化することを防止できる。 Further, the mold making apparatus 1 receives the shaved sand generated at the time of drilling by the sand receiving mechanism 100 and discharges it to the outside of the apparatus so that it does not drop onto the lower mold or the core, so that the gas hole It is possible to realize automation of drilling and to prevent the casting quality from being deteriorated by this sand.
　尚、上述では２ステーションの鋳型造型装置について説明したが、３つ以上のステーションを有する鋳型造型機の抜枠ステーションに孔形成機構８０、砂受け機構１００を設けるようにしてもよい。３ステーション以上の場合は、抜枠ステーション以外のステーションに、孔形成機構８０、砂受け機構１００を設けてもよい。 In the above description, the two-station mold making apparatus has been described. However, the hole forming mechanism 80 and the sand receiving mechanism 100 may be provided in a punching station of a mold making machine having three or more stations. In the case of three or more stations, the hole forming mechanism 80 and the sand receiving mechanism 100 may be provided in stations other than the frame drawing station.
　１…鋳型造型装置、２…上鋳枠、３…下鋳枠、６…マッチプレート、８０…孔形成機構、１００…砂受け機構。 DESCRIPTION OF SYMBOLS 1 ... Mold making apparatus, 2 ... Upper casting frame, 3 ... Lower casting frame, 6 ... Match plate, 80 ... Hole formation mechanism, 100 ... Sand receiving mechanism.

Claims (18)

  1. 　それぞれ上鋳枠及び下鋳枠からなる２対の上下鋳枠と、
    　該２対の上下鋳枠を旋回して、造型ステーション、鋳型抜き出しステーションからなる２つのステーション内に移動させる鋳枠旋回機構と、
    　前記２対の上下鋳枠のうち前記造型ステーションに位置する上下鋳枠の間に入出可能とされたマッチプレートと、
    　該上下鋳枠の間に搬入されたマッチプレートを挟持した上下鋳枠のそれぞれの開口部に挿入され上造型空間及び下造型空間を形成する一対のスクイズプレートと、
    　該上造型空間、該下造型空間のそれぞれに砂を充填する一対の砂導入ノズルを有するサンドタンクと、
    　該上造型空間及び該下造型空間に充填された鋳型砂を圧縮するスクイズ機構と、
    　前記鋳型抜き出しステーションに設けられ、前記鋳枠旋回機構により前記鋳型抜き出しステーションに移動された上下鋳枠内に形成された上鋳型及び下鋳型を、重ね合わせた状態で該上下鋳枠から抜き出しする抜き出し機構と、
    　前記鋳型抜き出しステーションに設けられ、前記鋳型抜き出しステーションに移動された上下鋳枠のうち上鋳枠内の鋳型に一又は複数の孔をあける孔形成機構と、
    を備える抜枠鋳型造型装置。     Two pairs of upper and lower casting frames each consisting of an upper casting frame and a lower casting frame;
    A casting frame turning mechanism for turning the two pairs of upper and lower casting frames to move them into two stations including a molding station and a mold extraction station;
    A match plate capable of entering and exiting between the upper and lower casting frames located at the molding station among the two pairs of upper and lower casting frames;
    A pair of squeeze plates which are inserted into respective openings of the upper and lower casting frames sandwiching the match plate carried between the upper and lower casting frames to form an upper molding space and a lower molding space;
    A sand tank having a pair of sand introduction nozzles for filling sand in each of the upper molding space and the lower molding space;
    A squeeze mechanism for compressing the mold sand filled in the upper molding space and the lower molding space;
    Extraction that is provided in the mold extraction station and is extracted from the upper and lower molds in an overlapped state with the upper mold and the lower mold formed in the upper and lower molds moved to the mold extraction station by the casting frame turning mechanism Mechanism,
    A hole forming mechanism that is provided in the mold extraction station and that opens one or a plurality of holes in the mold in the upper casting frame among the upper and lower casting frames moved to the mold extraction station;
    A blank frame mold making apparatus.
  2. 　前記孔形成機構は、前記上鋳型の上側から孔をあける一又は複数のドリル部材を有し、
    　前記抜き出し機構は、下鋳型の上に重ね合わせた状態とされた上鋳型を下側に向けて押すことにより該重ね合わせた状態とされた上鋳型及び下鋳型を前記上下鋳枠から抜き出す押し出し部材を有し、
    　前記押し出し部材には、前記ドリル部材が挿通可能な挿通用開口部が設けられている請求項１記載の抜枠鋳型造型装置。     The hole forming mechanism has one or a plurality of drill members that make holes from the upper side of the upper mold,
    The extraction mechanism is an extruding member for extracting the upper mold and the lower mold in the superimposed state from the upper and lower casting frames by pushing the upper mold superimposed on the lower mold downward. Have
    The punching mold making apparatus according to claim 1, wherein the extrusion member is provided with an insertion opening through which the drill member can be inserted.
  3. 　前記押し出し部材は、水平面内における外周が前記上鋳型の上面外周に沿う形状に形成され、
    　前記挿通用開口部は、前記押し出し部材の外周から所定の幅を隔てて沿う形状とされており、
    　前記押し出し部材は、前記挿通用開口部の外側であって前記押し出し部材の外周の内側である部分で、前記上鋳型を下側に向けて押すことにより、前記上鋳型及び下鋳型を前記上下鋳枠から抜き出す請求項２記載の抜枠鋳型造型装置。     The extruding member is formed in a shape in which the outer periphery in a horizontal plane is along the upper surface outer periphery of the upper mold,
    The insertion opening has a shape along a predetermined width from the outer periphery of the push member,
    The extruding member is a portion outside the insertion opening and inside the outer periphery of the extruding member. The punching mold making apparatus according to claim 2, wherein the punching mold making apparatus is extracted from the frame.
  4. 　前記孔形成機構は、前記ドリル部材を保持するドリルユニットと、
    　前記ドリルユニットを前記押し出し部材に対して上下に駆動するドリルユニット駆動機構とを有し、
    　前記ドリルユニットは、複数の取付用穴が設けられたボード部材と、
    　前記ボード部材を取り付け及び取り外し可能なユニット本体とを有し、
    　前記ドリル部材は、前記ボード部材の前記取付用穴のいずれかに選択的に取り付け及び取り外し可能とされている請求項３記載の抜枠鋳型造型装置。     The hole forming mechanism includes a drill unit that holds the drill member;
    A drill unit driving mechanism for driving the drill unit up and down with respect to the pushing member;
    The drill unit includes a board member provided with a plurality of mounting holes;
    A unit main body to which the board member can be attached and detached,
    The punched frame mold making apparatus according to claim 3, wherein the drill member is selectively attachable and detachable to any of the mounting holes of the board member.
  5. 　前記鋳型抜き出しステーションに位置して設けられ、該位置の上鋳枠の下方に前記孔形成機構の孔あけの際に、孔あけにより発生する砂を受けて装置外部に排出する砂受け機構を備える請求項１乃至請求項４の内いずれか１項に記載の抜枠鋳型造型装置。 A sand receiving mechanism that is provided at the mold extraction station and that receives sand generated by drilling and discharges it to the outside of the apparatus when the hole forming mechanism is drilled below the upper casting frame at the position. The frame-molding mold making apparatus according to any one of claims 1 to 4.
  6. 　前記砂受け機構は、回動可能に設けられた第１板状部材と、
    　前記第１板状部材の先端側から突出する方向及びその反対方向に移動可能に設けられ、前記第１板状部材が所定の回動位置にあるときに前記第１板状部材に対して、前記突出する方向に飛び出された位置で前記孔あけにより発生する砂を受けるための砂受け用の第２板状部材とを有し、
    　前記孔あけ前及び前記孔あけ後には、前記第１板状部材は、前記第２板状部材が垂直方向を向くような状態とされるとともに、前記第２板状部材は、前記第１板状部材に対して引き込んだ状態とされる請求項５記載の抜枠鋳型造型装置。     The sand receiving mechanism includes a first plate-like member that is rotatably provided;
    The first plate-like member is provided so as to be movable in the direction protruding from the front end side and the opposite direction thereof, and when the first plate-like member is at a predetermined rotation position, A second plate-like member for receiving sand for receiving sand generated by the drilling at a position protruding in the protruding direction;
    Before the drilling and after the drilling, the first plate member is in a state in which the second plate member faces the vertical direction, and the second plate member is the first plate. 6. The punching mold making apparatus according to claim 5, wherein the apparatus is in a state of being drawn into the member.
  7. 　前記孔あけ時には、前記第１板状部材は、先端側が基端側より上側に位置するように、水平方向に対して傾斜した状態とされ、前記第２板状部材は、前記第１板状部材に対して、突出する方向に飛び出された状態とされる請求項６記載の抜枠鋳型造型装置。 At the time of drilling, the first plate-like member is inclined with respect to the horizontal direction so that the distal end side is located above the proximal end side, and the second plate-like member is the first plate-like member. The punching mold making apparatus according to claim 6, wherein the apparatus is made to protrude in a protruding direction with respect to the member.
  8. 　前記砂受け機構は、前記第１板状部材を回動させる第１シリンダと、
    　前記第２板状部材を前記第１板状部材に対して飛び出す動作及び引き込む動作をするよう駆動する第２シリンダとを有している請求項７記載の抜枠鋳型造型装置。     The sand receiving mechanism includes a first cylinder for rotating the first plate member,
    The punching mold making apparatus according to claim 7, further comprising a second cylinder that drives the second plate-like member to perform an operation of popping out and retracting the first plate-like member.
  9. 　造型ステーションに位置して垂直方向に対向する上鋳枠及び下鋳枠からなる上下鋳枠を相互に近接方向に移動させることによってマッチプレートを挟持する工程と、
    　前記マッチプレートを挟持した上下鋳枠のそれぞれの開口部に一対のスクイズプレートを挿入させて上造型空間及び下造型空間を形成する工程と、
    　該上造型空間及び該下造型空間にサンドタンクから鋳型砂を充填する工程と、
    　前記一対のスクイズプレートを前記マッチプレート側に移動させて上造型空間及び下造型空間内の鋳型砂を圧縮する工程と、
    　前記上下鋳枠を相互に離間させる方向に移動させることで、前記上下鋳枠内に形成された鋳型からマッチプレートを分離する工程と、
    　前記造型ステーションにおいて鋳型が形成された上下鋳枠を鋳型抜き出しステーションに移動させるように該上下鋳枠を旋回する工程と、
    　該鋳型抜き出しステーションに移動された上下鋳枠のうち上鋳枠内の鋳型に孔形成機構により一又は複数の孔をあける工程と、
    　該上下鋳枠を相互に近接する方向に移動させることで、それぞれ鋳型が形成された上下鋳枠を重ね合わせる工程と、
    　重ね合わせた上下鋳枠内に進入可能な部材を有する鋳型抜き出し機構により上下鋳枠内のそれぞれの鋳型を重ね合わせた状態で該上下鋳枠から抜き出す工程とを備え、
    　前記造型ステーション、前記鋳型抜き出しステーションからなる２つのステーションには、それぞれのステーションに応じた工程の状態とされる、それぞれ上鋳枠及び下鋳枠からなる２対の上下鋳枠が設けられ、該上下鋳枠を旋回させて２つのステーション内に移動させることで、順次重ね合わされた鋳枠無しの上下鋳型を造型する、
    抜枠鋳型造型方法。     Sandwiching the match plate by moving the upper and lower casting frames, which are located in the molding station and vertically opposed to each other in the vertical direction, from each other in the proximity direction;
    A step of inserting a pair of squeeze plates into each opening of the upper and lower casting frames sandwiching the match plate to form an upper molding space and a lower molding space;
    Filling the upper molding space and the lower molding space with mold sand from a sand tank;
    A step of moving the pair of squeeze plates to the match plate side to compress the molding sand in the upper molding space and the lower molding space;
    Separating the match plate from the mold formed in the upper and lower casting frames by moving the upper and lower casting frames in directions away from each other;
    Swiveling the upper and lower casting frames so that the upper and lower casting frames on which the molds are formed in the molding station are moved to the mold extraction station;
    A step of making one or a plurality of holes by a hole forming mechanism in a mold in the upper casting frame among the upper and lower casting frames moved to the mold extraction station;
    A step of superimposing the upper and lower casting frames each having a mold formed thereon by moving the upper and lower casting frames in directions close to each other;
    A step of extracting from the upper and lower casting frames in a state where the respective molds in the upper and lower casting frames are overlapped by a mold extraction mechanism having a member capable of entering the upper and lower casting frames,
    The two stations consisting of the molding station and the mold extraction station are provided with two pairs of upper and lower casting frames each consisting of an upper casting frame and a lower casting frame, which are in a process state corresponding to each station, By rotating the upper and lower casting frames and moving them into the two stations, the upper and lower molds without the casting frames, which are sequentially stacked, are formed.
    A method for making a blank mold.
  10. 　前記孔形成機構は、前記上下鋳枠の上鋳枠内に形成された上鋳型の上側から孔をあける一又は複数のドリル部材を有し、
    　前記鋳型抜き出し機構は、下鋳型の上に重ね合わせた状態とされた上鋳型を下側に向けて押すことにより該重ね合わせた状態とされた上鋳型及び下鋳型を前記上下鋳枠から抜き出す押し出し部材を有し、
    　前記押し出し部材には、前記ドリル部材が挿通可能な挿通用開口部が設けられている請求項９記載の抜枠鋳型造型方法。     The hole forming mechanism has one or a plurality of drill members that make holes from above the upper mold formed in the upper casting frame of the upper and lower casting frames,
    The mold extraction mechanism is configured to push out the upper mold and the lower mold in the superimposed state by pushing the upper mold superimposed on the lower mold downward. Having a member,
    The punching mold making method according to claim 9, wherein the extrusion member is provided with an insertion opening through which the drill member can be inserted.
  11. 　前記押し出し部材は、水平面内における外周が前記上鋳型の上面外周に沿う形状に形成され、
    　前記挿通用開口部は、前記押し出し部材の外周から所定の幅を隔てて沿う形状とされており、
    　前記押し出し部材は、前記挿通用開口部の外側であって前記押し出し部材の外周の内側である部分で、前記上鋳型を下側に向けて押すことにより、前記上鋳型及び下鋳型を前記上下鋳枠から抜き出す請求項１０記載の抜枠鋳型造型方法。     The extruding member is formed in a shape in which the outer periphery in a horizontal plane is along the upper surface outer periphery of the upper mold,
    The insertion opening has a shape along a predetermined width from the outer periphery of the push member,
    The extruding member is a portion outside the insertion opening and inside the outer periphery of the extruding member. 11. The method for making a punched mold according to claim 10, which is extracted from the frame.
  12. 　前記孔形成機構は、前記ドリル部材を保持するドリルユニットと、
    　前記ドリルユニットを前記押し出し部材に対して上下に駆動するドリルユニット駆動機構とを有し、
    　前記ドリルユニットは、複数の取付用穴が設けられたボード部材と、
    　前記ボード部材を取り付け及び取り外し可能なユニット本体とを有し、
    　前記ドリル部材は、前記ボード部材の前記取付用穴のいずれかに選択的に取り付け及び取り外し可能とされている請求項１１記載の抜枠鋳型造型方法。     The hole forming mechanism includes a drill unit that holds the drill member;
    A drill unit driving mechanism for driving the drill unit up and down with respect to the pushing member;
    The drill unit includes a board member provided with a plurality of mounting holes;
    A unit main body to which the board member can be attached and detached,
    The punching mold making method according to claim 11, wherein the drill member is selectively attachable to and detachable from any of the attachment holes of the board member.
  13. 　前記孔形成機構により一又は複数の孔をあける工程においては、前記鋳型抜き出しステーションに位置して設けられる砂受け機構により、該位置の上鋳枠の下方に前記孔形成機構の孔あけの際に、孔あけにより発生する砂を受けて装置外部に排出する請求項９乃至請求項１２の内いずれか１項に記載の抜枠鋳型造型方法。 In the step of making one or a plurality of holes by the hole forming mechanism, when the hole forming mechanism is drilled below the upper casting frame at the position by the sand receiving mechanism provided at the mold extraction station. 13. The method for making a blank frame mold according to any one of claims 9 to 12, wherein sand generated by drilling is received and discharged to the outside of the apparatus.
  14. 　前記砂受け機構は、回動可能に設けられた第１板状部材と、
    　前記第１板状部材の先端側から突出する方向及びその反対方向に移動可能に設けられ、前記第１板状部材が所定の回動位置にあるときに前記第１板状部材に対して、前記突出する方向に飛び出された位置で前記孔あけにより発生する砂を受けるための砂受け用の第２板状部材とを有し、
    　前記孔あけ前及び前記孔あけ後には、前記第１板状部材は、前記第２板状部材が垂直方向を向くような状態とされるとともに、前記第２板状部材は、前記第１板状部材に対して引き込んだ状態とされる請求項１３記載の抜枠鋳型造型方法。     The sand receiving mechanism includes a first plate-like member that is rotatably provided;
    The first plate-like member is provided so as to be movable in the direction protruding from the front end side and the opposite direction thereof, and when the first plate-like member is at a predetermined rotation position, A sand receiving second plate-like member for receiving sand generated by the drilling at a position protruding in the protruding direction;
    Before and after drilling, the first plate member is in a state in which the second plate member faces the vertical direction, and the second plate member is the first plate. 14. A method for making a blank frame mold according to claim 13, wherein the drawn member is drawn into the cylindrical member.
  15. 　前記孔あけ時には、前記第１板状部材は、先端側が基端側より上側に位置するように、水平方向に対して傾斜した状態とされ、前記第２板状部材は、前記第１板状部材に対して、突出する方向に飛び出された状態とされる請求項１４記載の抜枠鋳型造型方法。 At the time of drilling, the first plate-like member is inclined with respect to the horizontal direction so that the distal end side is located above the proximal end side, and the second plate-like member is the first plate-like member. The punching mold making method according to claim 14, wherein the member is made to protrude in a protruding direction with respect to the member.
  16. 　前記砂受け機構は、前記第１板状部材を回動させる第１シリンダと、
    　前記第２板状部材を前記第１板状部材に対して飛び出す動作及び引き込む動作をするよう駆動する第２シリンダとを有している請求項１５記載の抜枠鋳型造型方法。     The sand receiving mechanism includes a first cylinder for rotating the first plate member,
    The punched frame mold making method according to claim 15, further comprising: a second cylinder that drives the second plate-like member to perform an operation of popping out and retracting the first plate-like member.
  17. 　鋳型を造型する鋳型造型装置、若しくは鋳型を造型する鋳型造型装置を有する鋳型造型ラインに設けられる砂受け装置であって、
    　回動可能に設けられた第１板状部材と、
    　前記第１板状部材の先端側から突出する方向及びその反対方向に移動可能に設けられ、前記第１板状部材が所定の回動位置にあるときに前記第１板状部材に対して、前記突出する方向に飛び出された位置で孔あけにより発生する砂を受けるための砂受け用の第２板状部材と、
    　前記第１板状部材を回動させる第１シリンダと、
    　前記第２板状部材を前記第１板状部材に対して飛び出す動作及び引き込む動作をするよう駆動する第２シリンダと、
    を有し、
    　前記孔あけ前及び前記孔あけ後には、前記第１板状部材は、前記第２板状部材が垂直方向を向くような状態とされるとともに、前記第２板状部材は、前記第１板状部材に対して引き込んだ状態とされる、
    砂受け装置。     A sand receiving device provided in a mold making line having a mold making apparatus for making a mold or a mold making apparatus for making a mold,
    A first plate-like member provided rotatably,
    The first plate-like member is provided so as to be movable in the direction protruding from the front end side and the opposite direction thereof, and when the first plate-like member is at a predetermined rotation position, A second plate-like member for sand receiving for receiving sand generated by drilling at a position protruding in the protruding direction;
    A first cylinder for rotating the first plate member;
    A second cylinder that drives the second plate-like member to jump out and pull-in the first plate-like member;
    Have
    Before and after drilling, the first plate member is in a state in which the second plate member faces the vertical direction, and the second plate member is the first plate. It is in a state of being drawn into the member
    Sand receiving device.
  18. 　前記孔あけ時には、前記第１板状部材は、先端側が基端側より上側に位置するように、水平方向に対して傾斜した状態とされ、前記第２板状部材は、前記第１板状部材に対して、突出する方向に飛び出された状態とされる請求項１７記載の砂受け装置。 At the time of drilling, the first plate-like member is inclined with respect to the horizontal direction so that the distal end side is located above the proximal end side, and the second plate-like member is the first plate-like member. The sand receiving device according to claim 17, wherein the sand receiving device is protruded in a protruding direction with respect to the member.
PCT/JP2012/076500 2012-01-20 2012-10-12 Flaskless mold making device, flaskless mold making method, and sand receiving device WO2013108449A1 (en)

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EP12866350.7A EP2777844B1 (en) 2012-01-20 2012-10-12 Flaskless mold making device, flaskless mold making method, and sand receiving device
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