US20250222514A1 - Device for extracting poured molds and method for extracting poured molds - Google Patents

Device for extracting poured molds and method for extracting poured molds Download PDF

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Publication number
US20250222514A1
US20250222514A1 US18/853,790 US202318853790A US2025222514A1 US 20250222514 A1 US20250222514 A1 US 20250222514A1 US 202318853790 A US202318853790 A US 202318853790A US 2025222514 A1 US2025222514 A1 US 2025222514A1
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US
United States
Prior art keywords
rotating
shifting
extracting
drive shaft
mold part
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/853,790
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English (en)
Inventor
Kouichi Shimomura
Daisuke Funaki
Yuso Kanehira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metals Engineering KK
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Metals Engineering KK
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Publication date
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Assigned to METALS ENGINEERING KABUSHIKI KAISHA reassignment METALS ENGINEERING KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUNAKI, Daisuke, KANEHIRA, YUSO, SHIMOMURA, KOUICHI
Publication of US20250222514A1 publication Critical patent/US20250222514A1/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04—Handling or stripping castings or ingots
    • B22D29/08—Strippers actuated mechanically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04—Handling or stripping castings or ingots

Definitions

  • the base frame BF is made of, for example, iron and formed in a rectangular frame shape.
  • Five horizontal bar portions BF 2 are laterally bridged between long side portions BF 1 facing each other so as to extend in the Y-axis direction.
  • the long side portions BF 1 and the horizontal bar portions BF 2 are formed such that height positions coincide with each other at each upper end surface and each lower end surface.
  • the electric motor 2 is assembled to an upper right end surface of the base frame BF in FIG. 1 via a pedestal.
  • a small sprocket 21 is assembled to the outer periphery of an output shaft of the electric motor 2 .
  • a large sprocket 22 having a diameter larger than that of the small sprocket 21 is provided at one end portion of the rotating drive shaft 31 of the driving mechanism 3 so as to face the small sprocket 21 .
  • a rotation shaft of the small sprocket 21 and a rotation shaft of the large sprocket 22 are provided in parallel to each other.
  • An annular endless roller chain 23 is hooked between the large sprocket 22 and the small sprocket 21 to transmit a rotational torque of the electric motor 2 to the rotating drive shaft 31 .
  • the driving mechanism 3 is driven by the electric motor 2 , and moves up and down the link member 5 lifting the lifting frame 4 described later.
  • the driving mechanism 3 includes the rotating drive shaft 31 , a rotating portion 32 , and a rotating arm portion 33 .
  • the rotating drive shaft 31 is made of, for example, iron, formed in a round rod shape, and disposed below the base frame BF so as to extend in the X-axis direction.
  • a thick shaft portion 31 a having a slightly large diameter and shifted inward by a predetermined width in the X-axis direction from the left end portion is circumferentially provided at a position on the left side in FIG. 1 .
  • the large sprocket 22 having a large outer diameter is assembled to a right end portion of the rotating drive shaft 31 in FIG. 1 so as to be relatively non-rotatable.
  • the rotation center of the large sprocket 22 is coaxial with an axis 32 c of the rotating drive shaft 31 .
  • the rotary encoder RE is disposed at the left end portion of the rotating drive shaft 31 in FIG. 1 , and detects a rotation angle of the rotating drive shaft 31 .
  • the rotating portion 32 is formed in a short cylindrical shape having a diameter larger than that of the thick shaft portion 31 a of the rotating drive shaft 31 .
  • the rotating portion 32 constitutes a part of the shifting portion.
  • the outer periphery of the rotating portion 32 is held in an opening holding portion 33 a of the rotating arm portion 33 in a relatively rotatable manner described later (see FIG. 2 ).
  • the rotating portion 32 is provided with a locking portion 321 .
  • the locking portion 321 is formed in a rectangular plate shape extending so as to protrude in a radial direction from the rotating drive shaft 31 (integral with the rotating portion 32 ).
  • the locking portions 321 are provided on both sides, respectively, of the rotating portion 32 so as to sandwich the rotating portion 32 along the X-axis direction, and are integrally assembled to the rotating drive shaft 31 .
  • the rotating arm portion 33 When cut along a virtual vertical surface including the Y-axis direction, the rotating arm portion 33 is formed to have a substantially oval cross section, and the opening holding portion 33 a opened in the X-axis direction is formed on a base portion side.
  • the locked portions 331 each having an arc shape shorter than a semicircular arc by a predetermined length are assembled to end edge portions on both sides, respectively, of an opening of the opening holding portion 33 a.
  • the locked portion 331 when the rotating arm portion 33 rotates around the rotating portion 32 , one or the other side surface of the locking portion 321 abuts on an upper end portion or a lower end portion of the locked portions 331 having the arc shape. Accordingly, the relative rotation between the rotating portion 32 and the rotating arm portion 33 after the abutment is regulated.
  • 180 degrees is set to a range in relatively rotatable with respect to the rotating portion 32 .
  • the locking portion 321 and the locked portion 331 constitute the rotation angle regulating portion.
  • a first link portion L 1 is formed on a tip portion side of the rotating arm portion 33 .
  • the first link portion L 1 includes a coupling hole LH, a bearing BR, and a shaft pin SP.
  • the shaft pin SP is formed such that both end portions each have a diameter smaller than that of a central portion, and is provided such that two bearings BR sandwich two step portions which are boundaries between both end portions and the central portion.
  • Second link portions L 2 of the link member 5 are coupled to the tip portions on both sides, respectively, of the shaft pin SP.
  • the second link portion L 2 includes communication holes CH formed in two members 51 each having a long plate shape of the link member 5 described later.
  • the contact surface 33 b abuts on the rotating arm portion stopper AS, so that the rotating arm portion 33 is prevented from rotating by a desired rotation angle or more.
  • the link member 5 transmits a driving force of the driving mechanism 3 to the lifting frame 4 described later.
  • the link member 5 includes the two members 51 each made of, for example, iron and having the long plate shape and extending in the vertical direction.
  • the two members 51 are integrally formed by being stacked with each other with a space therebetween.
  • a curved portion 51 a having a lower end provided with the second link portion L 2 is formed in each lower portion.
  • a straight portion 51 b continuous with the curved portion 51 a is formed in an upper portion, and a third link portion L 3 is provided at an upper end of the straight portion 51 b.
  • the support leg portion 6 is made of, for example, iron and formed in a substantially rectangular tubular shape.
  • the support leg portion 6 has a lower end portion fixed to the rectangular frame formed by two long side portions BF 1 extending in the X-axis direction of the base frame BF, the first (in FIG. 1 ) horizontal bar BF 2 a , and the fourth (in FIG. 1 ) horizontal bar BF 2 d.
  • the support leg portion 6 includes four side surface portions 6 a and 6 b and a top plate portion 6 c , and is formed in a tower shape as a whole.
  • One of the side surface portions 6 a arranged in the Y-axis direction in the support leg portion 6 is formed with an inclined surface 6 a 1 having a lower portion inclined outward.
  • the inclined surface 6 a 1 prevents the curved portion 51 a of the link member 5 from coming into contact with the support leg portion 6 when the rotating arm portion 33 rotates to a horizontal position.
  • Two side surface portions 6 b arranged in the X-axis direction in the support leg portion 6 each have an upper portion formed in a rectangular shape and a lower portion formed in a trapezoidal shape in accordance with a shape of each of the side surface portions 6 a arranged in the Y-axis direction.
  • the upper portion and the lower portion are continuously integrated.
  • the top plate portion 6 c having a rectangular shape is provided at an upper end of the support leg portion 6 .
  • the top plate portion 6 c is provided with a through hole 6 c 1 having a rectangular shape through which the link member 5 penetrates and an attachment hole 6 c 2 to which the guide portion 61 is fixed (see FIG. 4 ).
  • the through hole 6 c 1 is formed in a size with a margin such that the link member 5 is loosely inserted.
  • the attachment holes 6 c 2 are provided on both sides, respectively, across the through hole 6 c 1 along the X-axis direction.
  • the rise regulating device 7 presses only the molding flask CF from above in extracting the mold, and is used to extract the sand mold part SM upward from the molding flask CF by the lifting frame 4 .
  • the link biasing device 8 includes a cam member 81 provided on one side surface of the two members 51 having the long plate shape of the link member 5 , and a driven node member 82 generating an biasing force when pressed by the cam member 81 to push back the cam member 81 and the link member 5 .
  • the cam member 81 When cut along a virtual vertical plane including the Y-axis, the cam member 81 has a cross section of a trapezoidal shape rotated by 90 degrees.
  • An upper base of the trapezoid is a vertical surface 81 a facing a driven node member side described later, and a lower base is a vertical surface 81 b connected in parallel to the link member 5 .
  • An inclined surface 81 c connecting an upper end edge of the vertical surface 81 a of the upper base and an upper end edge portion of the vertical surface 81 b of the lower base is included.
  • the inclined surface 81 c corresponds to an oblique side of the trapezoidal shape.
  • the inclined surface 81 c and the vertical surface 81 b of the lower base form an acute angle expanding downward.
  • the driven node member 82 includes a support base 821 fixed to a vertical wall inside the support leg portion 6 , a bell crank portion 822 swingably attached to a support shaft 820 provided on the support base 821 , a guide roller portion 823 provided at a tip above the bell crank portion 822 , and a coil spring 824 having one end portion coupled to a tip below the bell crank portion 822 .
  • the coil spring 824 has the other end portion coupled to an attachment piece provided at an upper end corner inside the support leg portion 6 , and the guide roller portion 823 is configured to bias the bell crank portion 822 in a direction protruding toward the link member 5 .
  • the support base 821 is provided with a stopper portion 825 preventing the guide roller portion 823 from excessively protruding so as to regulate the rotation of the bell crank portion 822 .
  • the control device (not illustrated) drives the electric motor 2 and controls the rotational position of the rotating drive shaft 31 .
  • the control device controls switching operations of the hydraulic switching valve 72 and the pneumatic switching valve 74 .
  • the casting frame CF and the sand mold part SM which are a poured mold, are conveyed into the extraction position EP and positioned by the roller conveyor RC.
  • the lifting frame 4 is held at a lowering end position FEP. At this time, the axis 32 c of the rotating portion 32 and the locking portion 321 are located vertically directly below the rotation center 31 c of the rotating drive shaft 31 .
  • the first link portion L 1 of the rotating arm portion 33 is located vertically directly below the rotation center 31 c of the rotating drive shaft 31 .
  • the locking portion 321 is in a state of abutting on an end portion below the locked portion 331 .
  • a gap is formed between the upper end portion of the lifting frame 4 and the lower end portion of the sand mold part SM.
  • the pneumatic switching valve 74 is positioned at a port which is a position at which the pneumatic pump AP communicates with the opening side of the hydraulic cylinder device 71 .
  • the hydraulic switching valve 72 is positioned at a port which is a position at which the oil layer 73 a of the oil tank 73 communicates with a cap side of the hydraulic cylinder device 71 .
  • the piston rod 71 c is held at a raised position without coming into contact with the conveyed casting frame CF.
  • the control device rotates the rotating drive shaft 31 to rotate the rotating portion 32 .
  • This rotation indicates a state in which the rotating drive shaft 31 is rotated from 0 degrees to 180 degrees
  • FIG. 8 indicates a state at 90 degrees, which is a midpoint thereof. Since the rotating portion 32 is integral with the rotating drive shaft 31 , the axis 32 c is eccentric from the rotation center 31 c , but the rotating portion 32 rotates in conjunction with the rotating drive shaft 31 .
  • the rotating arm portion 33 does not rotate, and the axis 32 c of the rotating portion 32 rises to the same height as the rotation center 31 c of the rotating drive shaft 31 .
  • the rotating arm portion 33 rises at the position of 90 degrees by an amount of eccentricity between the rotation center 31 c of the rotating drive shaft 31 and the axis 32 c of the rotating portion 32 .
  • the link member 5 raises the lifting frame 4 .
  • the control device first positions the pneumatic switching valve 74 at a port such that the pneumatic pump AP communicates with the air layer 73 b of the oil tank 73 .
  • the hydraulic switching valve 72 is switched to a shut-off position, and a state in which the piston rod 71 c presses the upper end portion of the casting frame CF is maintained.
  • FIG. 9 illustrates a state in which the rotating portion 32 is rotated up to 180 degrees while continuing the above state.
  • a length from the lowering end position FEP to this raised position is the first stroke FS generated when the rotating portion is rotated by 180 degrees.
  • the locking portion 321 abuts on the upper end of the locked portion 331 .
  • the rotating portion 32 in FIG. 9 cannot relatively rotate with respect to the rotating arm portion 33 in the clockwise direction.
  • the rotating drive shaft 31 rotates by 180 degrees or more
  • the rotating arm portion 33 rotates integrally with the rotating portion 32 in the clockwise direction while the rotating drive shaft 31 rotates from 180 degrees to 360 degrees.
  • FIG. 10 illustrates a state in which the rotating drive shaft 31 is at a position of 270 degrees, which is a midpoint thereof.
  • the first link portion L 1 of the rotating arm portion 33 is horizontally aligned with the rotation center 31 c of the rotating drive shaft 31 .
  • the lower portion of the link member 5 swings largely sideways.
  • the link member 5 greatly pushes up the lifting frame 4 in the upper portion to extract the sand mold part SM from the casting frame CF.
  • the contact surface 33 b of the rotating arm portion 33 abuts on the rotating arm portion stopper AS to regulate further rotation of the rotating arm portion 33 .
  • the cam member 81 presses the guide roller portion 823 to rotate the bell crank portion 822 clockwise (in FIG. 11 ). As a result, the coil spring 824 is stretched to generate a biasing force for biasing the bell crank portion 822 in the counterclockwise direction.
  • the control device positions the pneumatic switching valve 74 at a port such that the oil tank 73 communicates with the atmosphere and the pneumatic pump AP communicates with the opening side of the hydraulic cylinder device 71 .
  • the control device positions the hydraulic switching valve 72 at a port at a position where the oil layer 73 a of the oil tank 73 communicates with the cap portion side of the hydraulic cylinder device 71 .
  • the sand mold part SM is completely extracted from the casting frame CF and is raised to a height position of the belt conveyor BC to be conveyed.
  • FIG. 12 illustrates a state in which the extracted sand mold part SM is conveyed to the next step by the belt conveyor BC.
  • the control device reversely rotates (counterclockwise rotation in FIG. 11 ) the rotating drive shaft 31 , so that the lifting frame 4 is lowered.
  • the link member 5 is biased in a direction in which the rotating arm portion 33 rotates in the reverse direction, and thus the link member 5 can smoothly and reliably rotate in the reverse direction to lower the lifting frame 4 .
  • the casting frame CF s conveyed to the downstream side by the roller conveyor RC, and a new casting frame CF before extraction is conveyed into the extraction position EP from the upstream side.
  • the device for extracting poured molds 1 includes the electric motor 2 , the driving mechanism 3 including the rotating drive shaft 31 driven by the electric motor 2 , the lifting frame 4 supporting the lower surface of the sand mold part SM inside the casting frame CF of the poured molds to cause thereof to be capable of lifting, the link member 5 extending in the vertical direction and provided between the driving mechanism 3 and the lifting frame 4 , and the rise regulating device 7 abutting on the outer periphery of the casting frame CF to regulate rising of the casting frame CF when the lifting frame 4 is raised.
  • the driving mechanism 3 includes the shifting portion (rotating portion 32 ) shifting the lifting frame 4 upward relatively by a predetermined length in cooperation with the rise regulating device 7 in order to separate the sand mold part SM from the casting frame CF in the adhered state at the extraction position EP where the sand mold part SM is extracted from the casting frame CF, and the upward extraction portion (rotating arm portion 33 ) extracting the shifted sand mold part SM upward to a conveyance position TP with the force smaller than the force of shifting by the shifting portion and at the speed higher than the speed of shifting by the shifting portion.
  • the shifting portion includes the rotating portion 32 having a cylindrical shape and including the axis 32 c parallel to the rotation center 31 c of the rotating drive shaft 31 , the axis 32 c being eccentric by the predetermined dimension from the rotation center 31 c of the rotating drive shaft 31 .
  • the upward extraction portion is the rotating arm portion 33 having the predetermined rotation radius extending in the radial direction of the rotating portion 32 , and includes, on the base end portion side, the opening holding portion 33 a holding the outer periphery of the rotating portion 32 so as to be relatively rotatable, and includes, on the tip portion side, the rotating arm portion 33 having the first link portion L 1 .
  • the link member 5 includes, at one end, the second link portion L 2 coupled to the first link portion L 1 of the rotating arm portion 33 in a rotatable manner, and includes, at the other end, the third link portion L 3 , and the lifting frame 4 includes the fourth link portion L 4 linked to the third link portion L 3 in a rotatable manner.
  • the rotation angle regulating portion (locking portion 321 and locked portion 331 ) is provided between the opening holding portion 33 a and the rotating portion 32 in which when the rotating portion 32 relatively rotates with respect to the opening holding portion 33 a by the predetermined angle, the relative rotation is regulated, so that the rotating portion 32 and the rotating arm portion 33 rotate integrally.
  • the eccentric axis 32 c moves from below the rotation center 31 c to above the rotation center 31 c by the rotation of the rotating portion 32 , so that the link member 5 is raised by the distance necessary for shifting.
  • the rotating portion 32 and the opening holding portion 33 a of the rotating arm portion 33 relatively rotate (idle) and the rotating arm portion 33 does not rotate, and thus the link member 5 rises by the distance necessary for shifting by the rotating portion 32 .
  • the relative rotation (idling) state of the rotating arm portion 33 with respect to the rotating portion 32 is released by the rotation angle regulating device (locking portion 321 and locked portion 331 ), and the rotating arm portion 33 rotates and the first link portion L 1 of the rotating arm portion 33 moves from below the rotation center 31 c to above the rotation center 31 c , so that the link member 5 is further raised.
  • the shifted sand mold part SM can be extracted upward to the position EP where the sand mold part SM is conveyed.
  • the predetermined dimension in which the axis 32 c of the rotating portion 32 is eccentric from the rotation center 31 c of the rotating drive shaft 31 is a dimension for generating the first stroke FS in the vertical direction necessary for shifting the poured sand mold part SM in the casting frame CF from the inner wall of the casting frame CF, and at the same time, for causing the rotating portion 32 to generate a force necessary for shifting by the rotational torque of the electric motor 2 .
  • the dimension of the predetermined rotation radius of the rotating arm portion 33 is a dimension for generating the second stroke SS in the vertical direction necessary for extracting the sand mold part SM separated from the casting frame CF upward.
  • an eccentric dimension at a position shifted by a predetermined dimension from the rotation center 31 c of the rotating drive shaft 31 is set as a force and the first stroke FS necessary for separating the poured mold (sand mold part SM) in the casting frame CF from the casting frame inner wall, and a dimension having a predetermined dimension from the rotation center 31 c of the rotating arm portion 33 as the rotation radius is set as a force and the second stroke SS necessary for upward extracting after separating from the casting frame inner wall.
  • a distance from the rotation center 31 c of the rotating drive shaft 31 to the center of the first link portion L 1 rotated by the rotating arm portion 33 is longer than a distance from the rotation center 31 c of the rotating drive shaft 31 to the axis 32 c of the rotating portion 32 .
  • a rotational speed of the rotating arm portion 33 becomes faster than a rotational speed of the rotating portion 32
  • a speed of the first stroke FS associated with the rotation of the rotating portion 32 becomes slower than a speed of the second stroke SS associated with the rotation of the rotating arm portion 33 .
  • the torque is obtained by multiplying a “distance from the rotation center 31 c ” by a “circumferential force”.
  • the link biasing device 8 biasing the link member 5 at the time of lowering of the lifting frame 4 so that the rotating arm portion 33 rotates in the direction opposite to that at the time of rising is provided.
  • the rise regulating device 7 includes at least the pair of hydraulic cylinder devices 71 each including the piston rod 71 c capable of abutting on the outer periphery upper surface of the upper casting frame of the casting frame CF, the oil tank 73 including the oil layer 73 a storing the hydraulic oil and the air layer 72 b generated above the oil layer 73 a , the hydraulic switching valve 72 provided between the oil tank 73 and the hydraulic cylinder device 71 , the pneumatic pump AP applying a pressure to air to feed the air, and the pneumatic switching valve 74 provided between the pneumatic pump AP and the air layer 73 b of the oil tank 73 .
  • the hydraulic oil is supplied from the oil tank 73 to the hydraulic switching valve 72 by an air pressure applied to the air layer 73 b of the oil tank 73 .
  • the method for extracting poured molds using the device for extracting poured molds 1 including the electric motor 2 , the driving mechanism 3 driven by the electric motor 2 , the lifting frame 4 supporting the lower surface of the sand mold part SM inside the casting frame CF of the poured molds to cause thereof to be capable of lifting, the link member 5 extending in the vertical direction and provided between the driving mechanism 3 and the lifting frame 4 , and the rise regulating device 7 abutting on the outer periphery of the casting frame CF to regulate rising of the casting frame CF when the lifting frame 4 is raised.
  • the method includes the shifting step of relatively shifting the sand mold part SM by the predetermined length in the vertical direction by the shifting portion (rotating portion 32 ) in order to separate the sand mold part SM from the casting frame CF in the adhered state in cooperation with the rise regulating device 7 at the extraction position EP where the sand mold part SM is extracted from the casting frame CF by using the driving mechanism 3 , and the upward extracting step of extracting the shifted sand mold part SM upward by the upward extraction portion (rotating arm portion 33 ) to the conveyance position TP with a force smaller than the force of shifting by the shifting step and at the speed higher than the speed of shifting by the shifting step.
  • a work step is executed by dividing the extracting poured molds into the shifting portion (rotating portion 32 ) requiring the large force with the short stroke and the upward extraction portion (rotating arm portion 33 ) requiring the high speed with the long stroke, so that miniaturization of the device and improvement of the work efficiency can be achieved.
  • the rotating portion 32 constituting the shifting portion has a short cylindrical shape provided around the rotating drive shaft 31 , but embodiments of the present invention are not limited thereto.
  • it may be configured in a crankshaft shape together with a rotating drive shaft 131 .
  • two rotating portions 132 are coupled to each other by a thin shaft 140 eccentric from a rotation center 131 c of a rotating drive shaft 131 , and a rotating arm portion 133 forming the upward extraction portion is sandwiched from both sides.
  • locking portions 1321 are formed integrally with peripheral edge portions of the two rotating portions 132 , respectively, to protrude in a radial direction.
  • Locked portions 1331 are integral with the rotating arm portion 133 , but are provided on both sides of the rotating arm portion 133 corresponding to the two locking portions 1321 , respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
US18/853,790 2022-08-23 2023-08-21 Device for extracting poured molds and method for extracting poured molds Pending US20250222514A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022-132216 2022-08-23
JP2022132216 2022-08-23
PCT/JP2023/030060 WO2024043216A1 (ja) 2022-08-23 2023-08-21 注湯済み鋳型抜き出し装置および注湯済み鋳型抜き出し方法

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JP (1) JPWO2024043216A1 (https=)
CN (1) CN118973742A (https=)
DE (1) DE112023000962T5 (https=)
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CN121443408A (zh) * 2024-01-30 2026-01-30 金属机械股份有限公司 浇铸完毕铸模拔出装置以及浇铸完毕铸模拔出方法

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JPS521895B2 (https=) * 1974-03-18 1977-01-18
JPS5985362A (ja) * 1982-11-06 1984-05-17 Toyoda Autom Loom Works Ltd 鋳型の型ばらし装置
JP2866593B2 (ja) * 1994-11-28 1999-03-08 遠菱アルミホイール株式会社 鋳造装置
JP2010023094A (ja) 2008-07-22 2010-02-04 Metal Eng Kk 鋳枠内壁清掃スクレーパ装置
JP2018111125A (ja) * 2017-01-13 2018-07-19 メタルエンジニアリング株式会社 注湯済み鋳型冷却装置

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DE112023000962T5 (de) 2024-11-28
CN118973742A (zh) 2024-11-15
WO2024043216A1 (ja) 2024-02-29

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