WO2017199881A1 - 抜枠造型機 - Google Patents
抜枠造型機 Download PDFInfo
- Publication number
- WO2017199881A1 WO2017199881A1 PCT/JP2017/018067 JP2017018067W WO2017199881A1 WO 2017199881 A1 WO2017199881 A1 WO 2017199881A1 JP 2017018067 W JP2017018067 W JP 2017018067W WO 2017199881 A1 WO2017199881 A1 WO 2017199881A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- sand
- sand tank
- molding space
- mold
- Prior art date
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Classifications
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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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
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
- B22C19/04—Controlling devices specially designed for moulding machines
Definitions
- This disclosure relates to a frame making machine.
- Patent Document 1 discloses a frame making machine that forms a frameless mold without a casting frame.
- the molding machine includes a pair of upper and lower casting frames, a match plate on which a model is installed, a supply mechanism for supplying mold sand, and a squeeze mechanism for compressing the mold sand.
- the molding machine brings the lower casting frame closer to the upper casting frame and sandwiches the match plate between the upper casting frame and the lower casting frame.
- the molding machine operates the supply mechanism to supply the molding sand to the upper and lower molding spaces formed by the upper casting frame and the lower casting frame.
- the molding machine compresses the molding sand in the upper and lower molding spaces by operating a squeeze mechanism.
- the supply mechanism of this molding machine supplies the molding sand to the upper and lower molding spaces using compressed air.
- the supply mechanism includes a sand tank that stores mold sand.
- the sand tank is connected to a compressed air source.
- the sand tank has a first opening connected to the inlet of the upper molding space and a second opening connected to the inlet of the lower molding space, which are formed in the lower part of the sand tank.
- the inlet for the upper molding space and the inlet for the lower molding space are formed on the sides of the respective spaces.
- the sand tank is arranged so that the lower part thereof is located on the side of the upper and lower molding spaces.
- the first opening of the sand tank is connected to the introduction port of the upper molding space, and the second opening of the sand tank is connected to the introduction port of the lower molding space.
- the compressed air blown from the compressed air source supplies the molding sand stored in the sand tank from the side of the upper and lower molding spaces to the upper and lower molding spaces.
- a blank frame molding machine fills molding sand in each of an upper molding space formed using an upper casting frame and a lower molding space formed using a lower casting frame, And a punching frame molding machine that molds the upper mold and the lower mold of the non-cast frame by pressurizing the molding sand filled in the lower molding space, and stores the molding sand supplied to the upper molding space.
- a first lower sand tank Connectable to the tank, a first lower sand tank having a first connection port for storing the mold sand supplied to the lower molding space and discharging the stored mold sand, and a first connection port of the first lower sand tank
- a second lower sand tank having a second connection port and storing mold sand supplied from the first lower sand tank and supplied to the lower molding space; and extending in the vertical direction; an upper casting frame, a lower casting frame, and a second At least one first guide member for vertically guiding the lower sand tank; Extending vertically, comprising a second guide member for guiding the first lower sand tank in the vertical direction.
- the upper casting frame, the lower casting frame, and the second lower sand tank are guided in the vertical direction by at least one first guide member. That is, the upper casting frame and the lower casting frame for forming the mold are guided and moved by the common guide member. For this reason, it can suppress that a frame inclines from horizontal or a frame shifts
- the flow of the molding sand at the connecting portion between the first connection port and the second connection port becomes uniform, and the occurrence of clogging of sand can be suppressed. Therefore, it is not necessary to adjust the CB of the mold sand in consideration of the sand clogging, and it is possible to use the most suitable mold sand for the moldability of the mold and the quality of the cast product. Obtainable.
- a drive unit that moves the second lower sand tank in the vertical direction and an adjustment drive unit that moves the first lower sand tank in the vertical direction may be provided.
- the opening of the sand tank and the introduction port of the molding space can be adjusted by the drive unit and the adjustment drive unit so as to coincide with each other in the vertical direction.
- the at least one first guide member includes four first guide members, and the upper casting frame, the lower casting frame, and the second lower sand tank are movable to the four first guide members. It may be attached. When comprised in this way, the movement of an upper casting frame, a lower casting frame, and a 2nd lower sand tank is stabilized. Thereby, squeeze can be performed stably. For this reason, performances such as die cutting are improved, and as a result, excellent molds and cast products can be obtained.
- the four first guide members are arranged so that a quadrangle having a vertex at the center of each of the four first guide members surrounds the upper molding space and the lower molding space when viewed from the vertical direction.
- the first guide member of the book may guide the upper casting frame, the lower casting frame, and the second lower sand tank in the vertical direction during sand filling, squeezing, and die cutting.
- four guides 12 can be arranged.
- the upper sand tank and the first lower sand tank may be provided with a permeable member having a plurality of holes through which compressed air can flow on the inner surface.
- a permeable member having a plurality of holes through which compressed air can flow on the inner surface.
- the CB of the mold sand filled in the upper molding space and the lower molding space may be 30% to 42%. Further, the compressive strength of the molding sand filled in the upper molding space and the lower molding space may be 8 N / cm 2 to 15 N / cm 2 . In this case, excellent molds and cast products can be obtained.
- a frame making machine for forming an excellent mold or cast product is provided.
- a blank frame molding machine 1 according to this embodiment is a molding machine that molds an upper mold and a lower mold of a non-cast frame.
- FIG. 1 is a front view of a frame making machine 1 according to an embodiment.
- FIG. 2 is a rear view of the frame making machine 1.
- FIG. 3 is a left side view of the frame making machine 1.
- FIG. 4 is a schematic view of the left side of the frame making machine 1.
- the frame making machine 1 includes an upper frame 10, a lower frame 11, and four guides (first guide members) 12 that connect the upper frame 10 and the lower frame 11. Is provided.
- the guide 12 has an upper end connected to the upper frame 10 and a lower end connected to the lower frame 11.
- the four guides 12 are arranged so that a quadrangle whose vertex is the center of each of the four guides 12 surrounds an upper molding space and a lower molding space, which will be described later, when viewed from the vertical direction.
- the four guides 12 guide the upper casting frame, the lower casting frame, and the second lower sand tank in the vertical direction during sand filling, squeezing and die cutting.
- the lower frame 11 has a portion extending outside the molding position.
- a support frame 14 extending in the vertical direction is disposed in the portion.
- the guide frame is provided with two guides (second guide members) 12A.
- the frame making machine 1 includes an upper casting frame 15.
- the upper casting frame 15 is a box-shaped frame having an upper end and a lower end opened.
- the upper casting frame 15 is movably attached to the four guides 12.
- the upper casting frame 15 is supported by an upper casting frame cylinder 16 attached to the upper frame 10, and moves up and down along the guide 12 according to the operation of the upper casting frame cylinder 16.
- the blank frame molding machine 1 includes a lower casting frame 17 disposed below the upper casting frame 15.
- the lower casting frame 17 is a box-shaped frame having an upper end portion and a lower end portion opened.
- the lower casting frame 17 is movably attached to the four guides 12.
- the lower casting frame 17 is supported by two lower casting frame cylinders 18 attached to the upper frame 10, and moves up and down along the guide 12 according to the operation of the lower casting frame cylinder 18.
- a match plate (not shown) is introduced between the upper casting frame 15 and the lower casting frame 17 by a transport unit (not shown).
- the match plate is a plate-like member in which models are arranged on both sides thereof, and moves forward and backward between the upper casting frame 15 and the lower casting frame 17.
- the upper casting frame 15 and the lower casting frame 17 can hold the match plate in the vertical direction.
- the blank frame molding machine 1 includes an upper sand tank 22 disposed above the upper casting frame 15.
- the upper sand tank 22 is attached to the upper frame 10. More specifically, the upper sand tank 22 is statically fixed to the upper frame 10.
- the upper sand tank 22 stores mold sand to be supplied to the upper casting frame 15 therein.
- the upper sand tank 22 has an openable / closable inlet through which mold sand is supplied at the upper end thereof.
- the lower end part of the upper sand tank 22 is opened, and the upper plate 25 is attached to the opening of the lower end part.
- the upper plate 25 is a plate-like member and has at least one supply port that communicates from the upper sand tank 22 into the upper casting frame 15.
- Mold sand in the upper sand tank 22 is supplied into the upper casting frame 15 through a supply port of the upper plate 25.
- the upper plate 25 has substantially the same size as the opening of the upper casting frame 15. As the upper casting frame 15 moves upward, the upper plate 25 enters the upper casting frame 15. As the upper casting frame 15 moves downward, the upper plate 25 moves out of the upper casting frame 15.
- the upper plate 25 is configured to be able to advance and retract within the upper casting frame 15.
- the upper sand tank 22 is connected to a compressed air source (not shown), and compressed air having a predetermined pressure is supplied to the upper sand tank 22.
- the compressed air supplied from the upper part of the upper sand tank 22 is sent toward the lower part of the upper sand tank 22.
- the mold sand in the upper sand tank 22 is supplied into the upper casting frame 15 through the supply port of the upper plate 25 together with the compressed air.
- the upper sand tank 22 is provided with a permeable member 22a (FIG. 4) having a plurality of holes through which compressed air can circulate.
- the transmission member 22a may be formed of a porous material.
- the frame making machine 1 includes a lower sand tank that stores mold sand supplied in the lower casting frame 17.
- the lower sand tank is divided into a first lower sand tank 30 and a second lower sand tank 31 (FIG. 4).
- the first lower sand tank 30 is disposed on the side of the upper sand tank 22.
- the first lower sand tank 30 stores therein mold sand to be supplied to the lower casting frame 17.
- the first lower sand tank 30 is supported by the support frame 14, and is movably attached to two guides 12A (FIGS. 2 and 3) provided on the support frame 14 and extending vertically. More specifically, the first lower sand tank 30 is supported by a lower tank cylinder (adjustment drive unit) 32 attached to the support frame 14, and moves up and down along the guide 12A according to the operation of the lower tank cylinder 32. To do.
- the first lower sand tank 30 has an openable / closable inlet through which mold sand is supplied at the upper end.
- the lower end portion of the first lower sand tank 30 is bent in the horizontal direction (negative direction of the Y axis), and a first connection port 35 for discharging the stored casting sand is formed at the tip portion.
- the first connection port 35 is configured to be connectable to a second connection port of a second lower sand tank 31 described later at a predetermined height (connection position).
- the molding sand is supplied to the second lower sand tank 31 through the first connection port 35.
- the first lower sand tank 30 is connected to a compressed air source (not shown).
- the compressed air supplied from the upper part of the first lower sand tank 30 is sent toward the lower part of the upper sand tank 22. Mold sand in the first lower sand tank 30 is supplied into the second lower sand tank 31 through the first connection port 35 together with the compressed air.
- the first lower sand tank 30 is provided with a permeable member 30a having a plurality of holes through which compressed air can flow on the inner surface.
- the transmitting member 30a may be formed of a porous material.
- the second lower sand tank 31 is disposed below the lower casting frame 17.
- the second lower sand tank 31 stores mold sand to be supplied to the lower casting frame 17 therein.
- the second lower sand tank 31 is movably attached to the four guides 12 and is supported by a squeeze cylinder (drive unit) 37 extending in the vertical direction so as to be movable up and down.
- a second connection port 38 that can be connected to the first connection port 35 of the first lower sand tank is formed on the side of the second lower sand tank 31.
- the second connection port 38 is configured to be connectable to the first connection port 35 of the first lower sand tank 30 at a predetermined height (connection position).
- the connection position is a height at which the first connection port 35 and the second connection port 38 are connected.
- the connection position is a position where the first connection port 35 and the second connection port 38 are arranged coaxially. .
- the 1st connection port 35 and the 2nd connection port 38 are connected by the connection surface along the up-down direction.
- FIG. 5 is a partial cross-sectional view showing a state in which the first lower sand tank 30 and the second lower sand tank 31 are connected.
- FIG. 6 is a plan view showing a state in which the first lower sand tank 30 and the second lower sand tank 31 are connected. As shown in FIGS. 5 and 6, the first lower sand tank 30 and the second lower sand tank 31 are connected to each other by connecting the first connection port 35 and the second connection port 38 at a predetermined connection position. It becomes a state of communication. Mold sand is supplied from the first lower sand tank 30 to the second lower sand tank 31 via the first connection port 35 and the second connection port 38.
- a first closing plate 36 extending in the vertical direction is provided at the first connection port 35 of the first lower sand tank 30.
- a second closing plate 39 extending in the vertical direction is provided at the second connection port 38 of the second lower sand tank 31.
- Guide rails 71 (FIG. 6) for guiding the second closing plate 39 are provided on both sides of the first connection port 35 of the first lower sand tank 30. Since the second closing plate 39 is guided by the guide rail 71, the first connection port 35 and the second connection port 38 are guided to the connection position without being inclined with respect to each other.
- the first connection port 35 of the first lower sand tank 30 is shielded by the second closing plate 39 when not located at the connection position.
- the second connection port 38 of the second lower sand tank 31 is shielded by the first closing plate 36 when not located at the connection position.
- the frame making machine 1 may include a sealing mechanism that hermetically seals the connection surfaces of the first connection port 35 and the second connection port 38.
- the sealing mechanism is provided on the first connection port 35 side.
- FIG. 7 is a schematic view of the first connection port 35 of the first lower sand tank 30 and is a view of the first connection port 35 as viewed from the opened side.
- the first connection port 35 includes an opening 35 a that communicates with the inside of the first lower sand tank 30.
- the sealing mechanism includes a seal member 72 and a holding member 73.
- the seal member 72 is an annular member that surrounds the opening 35a.
- the seal member 72 has a tube shape into which gas can be introduced and has flexibility.
- the holding member 73 is an annular member surrounding the opening 35 a and abuts on the second closing plate 39.
- a groove capable of accommodating the seal member 72 is formed on the surface of the holding member 73 with which the second closing plate 39 abuts.
- FIG. 8 is a partially enlarged sectional view of the sealing mechanism. As shown in FIG. 8, the seal member 72 is accommodated so as not to protrude from the surface of the holding member 73 with which the second closing plate 39 abuts.
- the holding member 73 has a gas introduction port 73a (FIGS. 5 to 8) communicating with the seal member 72.
- the seal member 72 expands when a gas is introduced therein, and protrudes from the surface of the holding member 73 to seal the connection surfaces of the first connection port 35 and the second connection port 38 in an airtight manner.
- the frame making machine 1 may employ a sealing mechanism other than the sealing mechanisms shown in FIGS.
- the upper end of the second lower sand tank 31 is opened, and the lower plate 40 (FIG. 3) is attached to the opening of the upper end.
- the lower plate 40 is a plate-like member and has at least one supply port that communicates from the second lower sand tank 31 into the lower casting frame 17.
- the molding sand in the second lower sand tank 31 is supplied into the lower casting frame 17 through a supply port of the lower plate 40 and a lower frame described later.
- the punch frame molding machine 1 includes a bottom frame 41 (FIGS. 1 to 4) as an example.
- the underlay frame 41 is disposed below the lower casting frame 17.
- the underlay frame 41 is a box-shaped frame having an upper end portion and a lower end portion opened.
- the opening at the upper end of the lower frame 41 is connected to the opening at the lower end of the lower casting frame 17.
- the lower frame 41 is configured to accommodate the second lower sand tank 31 therein.
- the lower frame 41 is supported by a lower frame cylinder 42 fixed to the second lower sand tank 31 so as to be movable up and down.
- the lower plate 40 has substantially the same size as the openings of the lower frame 41 and the lower casting frame 17.
- the position where the 2nd lower sand tank 31 and the lower plate 40 were accommodated in the inside of the lower filling frame 41 which can move up and down is an original position (initial position), and becomes a descending end.
- the lower plate 40 moves out from the lower frame 41 by moving the lower frame 41 upward.
- the lower plate 40 moves into the lower frame 41 as the lower frame 41 moved upward moves downward.
- the lower plate 40 is configured such that the lower plate 40 can be advanced and retracted (entered / extracted) into the lower frame 41, and the lower frame 40 includes the lower frame 41 to shorten the stroke of the lower casting frame 17. Therefore, it is possible to provide a punching machine with a low apparatus height compared to the case where the underlay frame 41 is not provided.
- this blank frame molding machine 1 can shorten the stroke of the lower casting frame 17 by providing the lower frame 41, the molding time of a pair of upper mold and lower mold can be shortened.
- the frame making machine 1 does not have to include the underlay frame 41.
- the lower plate 40 is configured to be able to advance and retreat (can enter and exit) in the lower casting frame 17.
- the lower casting frame 17 that can move up and down has its lower end at its original position (initial position). That is, the lower plate 40 moves into the lower casting frame 17 by moving upward relative to the lower casting frame 17 that moves upward.
- the lower plate 40 moves out of the lower casting frame 17 by moving downward relative to the lower casting frame 17.
- [Molding space and squeeze] 9 and 10 are diagrams for explaining the molding space and the squeeze.
- the match plate 19 is introduced between the upper casting frame 15 and the lower casting frame 17.
- the upper casting frame cylinder 16, the lower casting frame cylinder 18 and the squeeze cylinder 37 are operated so that the upper casting frame 15 and the lower casting frame 17 hold the match plate at a predetermined height.
- the upper molding space S1 is formed by the upper plate 25, the upper casting frame 15, and the match plate.
- the under molding space S ⁇ b> 2 is formed by the lower plate 40, the lower casting frame 17, the lower frame 41, and the match plate 19.
- the lower mold forming space may be formed by the lower plate 40, the lower casting frame 17, and the match plate 19.
- the upper molding space S1 is filled with mold sand stored in the upper sand tank 22 via the upper plate 25.
- the lower mold forming space S2 is filled with mold sand stored in the second lower sand tank 31 via the lower plate 40.
- the time when the upper molding space S1 and the lower molding space S2 are formed and filled with mold sand is referred to as sand filling.
- the CB of the mold sand filled in the upper molding space S1 and the lower molding space S2 can be set in a range of 30% to 42%. Further, the compressive strength of the mold sand filled in the upper molding space S1 and the lower molding space S2 can be set in the range of 8 N / cm 2 to 15 N / cm 2 .
- the target height of the second lower sand tank 31 is changed according to the casting thickness. For this reason, the height of the second connection port 38 of the second lower sand tank 31 changes. Therefore, the height of the first connection port 35 of the first lower sand tank 30 is adjusted to the connection position of the second connection port 38 of the second lower sand tank 31 by the lower tank cylinder 32. Such adjustment can be realized by the control device 50 (FIG. 4).
- the control device 50 is a computer including a control unit such as a processor, a storage unit such as a memory, an input / output unit such as an input device and a display device, a communication unit such as a network card, and the like. Control mold sand supply system, compressed air supply system, drive system and power supply system.
- the squeeze cylinder 37 squeezes the upper plate 25 and the lower plate 40 by moving the second lower sand tank 31 upward in a state where the upper molding space S1 and the lower molding space S2 are filled with molding sand. Thereby, pressure is applied to the molding sand in the upper molding space S1, and an upper casting mold is formed. At the same time, pressure is applied to the molding sand in the lower molding space S2 to form the lower casting mold.
- squeeze time The time when pressure is applied to the mold sand is called squeeze time, and the time when the formed mold is taken out from the casting frame is called die cutting time.
- the upper casting frame 15, the lower casting frame 17, and the second lower sand tank 31 are supported by the four guides 12 so as to be movable in the vertical direction. That is, the upper casting frame 15 and the lower casting frame 17 for forming the mold are guided and moved by the common guide 12. For this reason, it can suppress that a frame inclines from horizontal or a frame shifts
- the opening of the sand tank and the inlet of the molding space are adjusted so as to coincide with each other in the vertical direction. Can do.
- the flow of the molding sand at the connecting portion between the first connection port 35 and the second connection port 38 becomes uniform, and the occurrence of clogging of sand can be suppressed. Therefore, it is not necessary to adjust the CB of the mold sand in consideration of the sand clogging, and it is possible to use the most suitable mold sand for the moldability of the mold and the quality of the cast product. Obtainable.
- the adjustment of the connection between the first lower sand tank 30 and the second lower sand tank 31 is facilitated, and the accuracy of filling the mold sand and the time required for filling are increased. Can be shortened.
- it is not necessary to move the first lower sand tank 30 and the second lower sand tank 31 together it is possible to reduce the individual drive mechanisms and suppress the drive power.
- the squeeze cylinder 37 and the lower tank cylinder 32 can be adjusted so that the opening of the sand tank and the introduction port of the molding space coincide with each other in the vertical direction. .
- the upper casting frame 15, the lower casting frame 17, and the second lower sand tank 31 are movably attached to the four guides 12, and the four guides.
- 12 is a molding space (upper molding space S1 and lower molding space S2) in which a quadrangle having apexes at the centers of the four guides 12 is formed by using the upper casting frame 15 and the lower casting frame 17 as viewed from above and below.
- the four guides 12 guide the upper casting frame 15, the lower casting frame 17, and the second lower sand tank 31 in the vertical direction during sand filling, squeezing and die cutting.
- the four guides 12 can be arranged. .
- the compressed air is supplied from the side to the storage space through the entire surface of the transmission members 22a and 30a, so that the fluidity of the molding sand is improved.
- the molding sand is further blown into the upper casting frame 15 or the lower casting frame 17 by compressed air, whereby the blowing resistance of the casting sand can be reduced. Therefore, power consumption of the compressed air source can be suppressed, and occurrence of sand clogging can be suppressed.
- the mold sand filled in the upper mold forming space S1 and the lower mold forming space S2 has a CB of 30% to 42% and a compressive strength of the mold sand of 8 N / Since the molding sand is set in the range of cm 2 to 15 N / cm 2 , excellent molds and casting products can be obtained.
- embodiment mentioned above shows an example of the frame making machine based on this invention.
- the frame making machine 1 according to the present invention is not limited to the frame forming machine 1 according to the embodiment, and the frame forming machine 1 according to the embodiment is modified without changing the gist described in each claim. Or may be applied to other things.
- the frame making machine 1 includes four guides 12
- the frame forming machine 1 may include at least one guide 12. That is, if the upper casting frame 15 and the lower casting frame 17 are guided by a common guide member, the frames can be prevented from being inclined with respect to each other and the frames can be prevented from being displaced.
- the frame making machine 1 includes the two guides 12A.
- the frame forming machine 1 may include at least one guide 12A. That is, if a guide 12A separate from the guide 12 involved in squeezing is provided, the opening of the sand tank and the introduction port of the molding space can be adjusted so as to coincide with each other in the vertical direction.
- the upper sand tank 22 may be configured to be movable.
- the squeeze cylinder 37 is disposed on the upper sand tank 22 side, and a squeeze force may be applied from the upper side, or the squeeze cylinder 37 and the squeeze cylinder disposed on the upper sand tank 22 side are used. The squeeze force may be applied from the up and down direction.
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Abstract
Description
本実施形態に係る抜枠造型機1は、無鋳枠の上鋳型及び下鋳型を造型する造型機である。図1は、一実施形態に係る抜枠造型機1の正面図である。図2は、抜枠造型機1の背面図である。図3は、抜枠造型機1の左側面図である。図4は、抜枠造型機1の左側面側の概要図である。図1~図4に示されるように、抜枠造型機1は、上フレーム10、下フレーム11、及び、上フレーム10と下フレーム11とを連結する4本のガイド(第1ガイド部材)12を備える。ガイド12は、その上端部が上フレーム10に連結され、その下端部が下フレーム11に連結される。4本のガイド12は、上下方向からみて、4本のガイド12それぞれの中心を頂点とする四角形が後述する上造型空間及び下造型空間を囲むように配置される。後述のとおり、4本のガイド12は、砂充填時、スクイズ時及び抜型時において、上鋳枠、下鋳枠及び第2下サンドタンクを上下方向に案内する。下フレーム11は、造型位置の外側に延在する部分を有する。当該部分には、上下方向に延びる支持フレーム14が配置されている。支持フレームには、2本のガイド(第2ガイド部材)12Aが設けられている。
抜枠造型機1は、上鋳枠15を備える。上鋳枠15は、上端部及び下端部が開口された箱形状の枠体である。上鋳枠15は、4本のガイド12に移動可能に取り付けられている。上鋳枠15は、上フレーム10に取り付けられた上鋳枠シリンダ16によって支持され、上鋳枠シリンダ16の動作に応じてガイド12に沿って上下動する。
抜枠造型機1は、上鋳枠15の上方に配置された上サンドタンク22を備える。上サンドタンク22は、上フレーム10に取り付けられている。より具体的には、上サンドタンク22は、上フレーム10に静的に固定されている。上サンドタンク22は、その内部に上鋳枠15に供給するための鋳型砂を貯留する。上サンドタンク22は、その上端部に鋳型砂が供給される開閉可能な導入口を有する。また、上サンドタンク22の下端部は開口されており、下端部の開口に上プレート25が取り付けられる。上プレート25は、板状部材であり、上サンドタンク22から上鋳枠15内へ連通する少なくとも1つの供給口を有する。上サンドタンク22内の鋳型砂は、上プレート25の供給口を介して上鋳枠15内に供給される。上プレート25は、上鋳枠15の開口の大きさと略同一である。上鋳枠15が上方向に移動することにより、上プレート25は上鋳枠15内に進入する。上鋳枠15が下方向に移動することにより、上プレート25は上鋳枠15内から退出する。このように、上プレート25は、上鋳枠15内に進退可能に構成されている。
抜枠造型機1は、一例として下盛枠41(図1~図4)を備える。下盛枠41は、下鋳枠17の下方に配置される。下盛枠41は、上端部及び下端部が開口された箱形状の枠体である。下盛枠41の上端部の開口は、下鋳枠17の下端部の開口と接続する。下盛枠41は、その内部に第2下サンドタンク31を収容可能に構成されている。下盛枠41は、第2下サンドタンク31に固定された下盛枠シリンダ42によって上下動可能に支持されている。下プレート40は、下盛枠41及び下鋳枠17の開口の大きさと略同一である。なお、上下動可能な下盛枠41は、その内部に第2下サンドタンク31及び下プレート40を収容した位置が原位置(初期位置)であり、下降端となる。下盛枠41が上方向に移動することにより、下プレート40は下盛枠41内から退出する。上方向に移動した下盛枠41が下方向に移動することにより、下プレート40は下盛枠41内に進入する。このように、下プレート40は、下盛枠41内に進退可能(入出可能)に構成されているこの抜枠造型機1は、下盛枠41を備えることにより下鋳枠17のストロークを短くすることができるので、下盛枠41を備えない場合と比べて装置高さが低い抜枠造型機とすることができる。また、この抜枠造型機1は、下盛枠41を備えることにより下鋳枠17のストロークを短くすることができるので、一組の上鋳型及び下鋳型の造型時間を短縮することができる。
図9及び図10は、造型空間及びスクイズを説明する図である。図9及び図10に示すように、マッチプレート19は、上鋳枠15と下鋳枠17との間に導入される。上造型空間S1及び下造型空間S2は、上鋳枠シリンダ16、下鋳枠シリンダ18及びスクイズシリンダ37を動作させて、上鋳枠15及び下鋳枠17が所定高さでマッチプレートを狭持したときに形成される。つまり、上造型空間S1は、上プレート25、上鋳枠15及びマッチプレートにより形成される。また、下造型空間S2は、下プレート40、下鋳枠17、下盛枠41及びマッチプレート19により形成される。なお、下盛枠41を備えない場合には、下造型空間は、下プレート40、下鋳枠17及びマッチプレート19により形成されてもよい。
Claims (7)
- 上鋳枠を用いて形成された上造型空間及び下鋳枠を用いて形成された下造型空間のそれぞれに鋳型砂を充填し、上造型空間及び下造型空間に充填された鋳型砂を加圧することにより、無鋳枠の上鋳型及び下鋳型を造型する抜枠造型機であって、
前記上造型空間へ供給される鋳型砂を貯留する上サンドタンクと、
前記下造型空間へ供給される鋳型砂を貯留し、貯留した鋳型砂を排出する第1接続口を有する第1下サンドタンクと、
前記第1下サンドタンクの第1接続口に接続可能な第2接続口を有し、前記第1下サンドタンクから供給され前記下造型空間へ供給される鋳型砂を貯留する第2下サンドタンクと、
上下方向に延び、前記上鋳枠、前記下鋳枠及び前記第2下サンドタンクを上下方向に案内する少なくとも1つの第1ガイド部材と、
上下方向に延び、前記第1下サンドタンクを上下方向に案内する第2ガイド部材と、
を備える抜枠造型機。 - 前記第2下サンドタンクを上下方向に移動させる駆動部と、
前記第1下サンドタンクを上下方向に移動させる調整駆動部と、
を備える請求項1に記載の抜枠造型機。 - 前記少なくとも1つの第1ガイド部材は、4本の第1ガイド部材を含み、
前記上鋳枠、前記下鋳枠及び前記第2下サンドタンクは、前記4本の第1ガイド部材に移動可能に取り付けられる請求項1又は2に記載の抜枠造型機。 - 前記4本の第1ガイド部材は、上下方向からみて、前記4本の第1ガイド部材それぞれの中心を頂点とする四角形が前記上造型空間及び前記下造型空間を囲むように配置され、
前記4本の第1ガイド部材は、砂充填時、スクイズ時及び抜型時において、前記上鋳枠、前記下鋳枠及び前記第2下サンドタンクを上下方向に案内する請求項3記載の抜枠造型機。 - 前記上サンドタンク及び前記第1下サンドタンクは、内面に圧縮空気が流通可能な複数の孔を有する透過部材が設けられている請求項1~4の何れか一項に記載の抜枠造型機。
- 前記上造型空間及び前記下造型空間に充填される鋳型砂のCBは、30%~42%である請求項1~5の何れか一項に記載の抜枠造型機。
- 前記上造型空間及び前記下造型空間に充填される鋳型砂の圧縮強さは、8N/cm2~15N/cm2である請求項1~5の何れか一項に記載の抜枠造型機。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09271897A (ja) * | 1996-04-05 | 1997-10-21 | Sintokogio Ltd | 吹き込み式鋳型造型機のブローヘッドへの砂供給方法 |
JP2002361368A (ja) * | 2001-06-12 | 2002-12-17 | Metal Eng Kk | 無枠式造型装置の鋳物砂充填方法及び装置 |
JP2011092964A (ja) * | 2009-10-28 | 2011-05-12 | Sintokogio Ltd | 抜枠鋳型造型装置 |
WO2011086712A1 (ja) * | 2010-01-15 | 2011-07-21 | 新東工業株式会社 | 無枠鋳型造型機 |
WO2011111241A1 (ja) * | 2010-03-11 | 2011-09-15 | 新東工業株式会社 | 鋳型造型機 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1369445A (en) * | 1971-03-29 | 1974-10-09 | Baker Perkins Ltd | Method and apparatus for preparing foundry moulds and cores |
DK475A (da) * | 1974-02-19 | 1976-04-09 | S Otaki | Fuldautomatisk formemaskine til fremstilling af vandret delte stobeforme uden underlagsplader eller spenderammer |
DE3021592A1 (de) * | 1979-10-09 | 1981-04-23 | Sintokogio, Ltd., Nagoya, Aichi | Formmaschine |
JPS5868453A (ja) * | 1981-10-21 | 1983-04-23 | Sintokogio Ltd | 鋳型造型機 |
US4840218A (en) * | 1987-04-01 | 1989-06-20 | Hunter Automated Machinery Corporation | Automatic matchplate molding system |
JP2772859B2 (ja) * | 1990-07-27 | 1998-07-09 | 新東工業株式会社 | 無枠鋳型造型機 |
JPH08300104A (ja) | 1995-04-28 | 1996-11-19 | Sintokogio Ltd | 鋳型造型方法およびその装置 |
JP3226151B2 (ja) | 1995-12-15 | 2001-11-05 | 新東工業株式会社 | ブロースクイズ式鋳型造型機 |
JP5168743B2 (ja) | 2009-11-05 | 2013-03-27 | 新東工業株式会社 | 同時鋳型造型方法及び抜枠鋳型造型装置 |
JP2012076116A (ja) * | 2010-10-01 | 2012-04-19 | Sintokogio Ltd | 排気方法および抜枠造型機 |
CN104128571A (zh) | 2014-07-08 | 2014-11-05 | 山西方盛液压机电设备有限公司 | 一种水平射砂水平分型粘土砂全自动造型机 |
WO2017138161A1 (ja) * | 2016-02-10 | 2017-08-17 | 新東工業株式会社 | 鋳型造型機、砂充填圧縮ユニット及び鋳型造型方法 |
JP6468243B2 (ja) | 2016-05-17 | 2019-02-13 | 新東工業株式会社 | 抜枠造型機 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09271897A (ja) * | 1996-04-05 | 1997-10-21 | Sintokogio Ltd | 吹き込み式鋳型造型機のブローヘッドへの砂供給方法 |
JP2002361368A (ja) * | 2001-06-12 | 2002-12-17 | Metal Eng Kk | 無枠式造型装置の鋳物砂充填方法及び装置 |
JP2011092964A (ja) * | 2009-10-28 | 2011-05-12 | Sintokogio Ltd | 抜枠鋳型造型装置 |
WO2011086712A1 (ja) * | 2010-01-15 | 2011-07-21 | 新東工業株式会社 | 無枠鋳型造型機 |
WO2011111241A1 (ja) * | 2010-03-11 | 2011-09-15 | 新東工業株式会社 | 鋳型造型機 |
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