JP2018024013A - Casting cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a casting cooling device.SOLUTION: A casting cooling device 100 includes an exhaust installation seat 110, a spacer 120, and a cast frame 130. The spacer 120 is positioned between the exhaust installation seat 110 and the cast frame 130, and the exhaust installation seat 110 has an exhaust space 114 and an exhaust hole 113. The exhaust space 114 communicates with the exhaust hole 113. The spacer 120 has through holes 121, and the through holes 121 is in communication with the exhaust space 114 and a cast space 132 of the cast frame 130. An upper gap G1 is provided between the cast frame 130 and the spacer 120, and the upper gap G1 is in communication with an exterior space and the cast space 132. A gas passage is formed by the upper gap G1, the cast space 132, the through holes 121, the exhaust space 114, and the exhaust hole 113. A mold installed in the cast space is cooled at a high speed by the gas passage.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a casting product cooling apparatus in which a mold is cooled at high speed from top to bottom.

  In the conventional casting method, when a cooling pipe is installed in the mold and the molten metal liquid is poured into the mold, the cooling liquid (cooling water or other cooling liquid) is introduced into the molten metal liquid by the cooling pipe. Is done. The temperature of the molten metal liquid is lowered, and the molten metal liquid is solidified at high speed to form a cast product.

JP2013-237094A

  However, in the conventional casting technique described above, since there is a temperature difference between the molten metal liquid and the cooling liquid, condensed water is formed outside the cooling pipe. Due to the water vapor generated when the condensed water evaporates, the pressure inside the mold may become excessive, which may cause an explosion. Further, when the circulation flow of the cooling liquid in the cooling pipe becomes non-uniform, the cooling of the molten metal liquid becomes non-uniform, which affects the quality of the cast product.

  Therefore, the present inventor considered that the above-mentioned drawbacks can be improved, and as a result of intensive studies, the present inventor has arrived at a proposal of the present invention that effectively improves the above-described problems by rational design.

  This invention exists in order to solve the subject of the above prior art. That is, an object of the present invention is to provide a cast product cooling apparatus. That is, the hot air in the mold is discharged by the gas flow path formed in the casting product cooling apparatus, the mold is cooled at high speed from the top to the bottom, and the solidification of the metal liquid is accelerated.

In order to solve the above-described problems and achieve the object, a casting product cooling apparatus according to the present invention includes an exhaust installation seat, a spacer, a casting frame, and a lid.
The exhaust installation seat has a bottom plate, at least one exhaust hole, and an exhaust space that is installed in the bottom plate and is surrounded by an outer wall, includes an opening, the opening is exposed to the bottom plate, and the exhaust space is open And the exhaust hole.
The spacer has a plurality of through-holes, the plurality of through-holes communicating with the exhaust space, installed on the outer wall and shielding the opening, and the plurality of through-holes are shielded when the mold is installed. The
The casting frame includes a wall portion including an upper end opening and a lower end opening, a molding space capable of accommodating a metal liquid, and a mold accommodating space formed between the spacer and the molding space and capable of accommodating a mold. It has a casting space surrounded by the wall, and is installed in the spacer so as to sandwich the spacer with the exhaust installation seat.
The lid body has at least one injection port communicated with the molding space and at least one pipe port portion communicated with the molding space, and is installed on the wall portion and shields the upper end opening.
The upper end opening communicates with the molding space, and the lower end opening communicates with the mold housing space.
An upper gap communicating with the mold housing space and the external space is formed between the wall portion and the spacer, and a gas flow path is formed by the exhaust hole, the exhaust space, a plurality of through holes, the mold housing space, and the upper gap. Yes.

The casting product cooling apparatus according to the present invention includes an exhaust installation seat, a spacer, a casting frame, and a lid.
The exhaust installation seat has a bottom plate, at least one exhaust hole, and an exhaust space that is installed in the bottom plate and is surrounded by an outer wall, includes an opening, the opening is exposed to the bottom plate, and the exhaust space is open And the exhaust hole.
The spacer has a plurality of through-holes, the plurality of through-holes communicating with the exhaust space, installed on the outer wall and shielding the opening, and the plurality of through-holes are shielded when the mold is installed. The
The casting frame includes a wall portion including an upper end opening and a lower end opening, a molding space capable of accommodating a metal liquid, and a mold accommodating space formed between the spacer and the molding space and capable of accommodating a mold. It has a casting space surrounded by the wall, and is installed in the spacer so as to sandwich the spacer with the exhaust installation seat.
The lid body has at least one injection port communicated with the molding space and at least one pipe port portion communicated with the molding space, and is installed on the wall portion and shields the upper end opening.
The upper end opening communicates with the molding space, and the lower end opening communicates with the mold housing space.
A lower gap communicating with the exhaust space and the outer space is formed between the outer wall and the spacer, and a gas flow path is formed by the exhaust hole, the exhaust space, the plurality of through holes, the mold accommodating space, and the lower gap.

  The mold becomes hot due to contact with the metal liquid during the casting process, and hot air in the mold is discharged at high speed through the mold accommodation space, multiple through holes, exhaust space, and exhaust hole in order. Is done. In addition, the temperature of the mold is lowered by external cold air continuously entering the mold accommodation space via the upper gap or the lower gap. Thus, the casting product cooling device according to the present invention cools the mold at a high speed from the top to the bottom, accelerates the solidification of the metal liquid to form the casting product, refines the crystal grains and increases the strength of the casting product. Achieve a strengthening effect.

It is an assembly drawing which shows the casting product cooling device by 1st Embodiment of this invention. It is a disassembled perspective view which shows the casting product cooling device by 1st Embodiment of this invention. It is sectional drawing which shows the casting product cooling device by 1st Embodiment of this invention. It is sectional drawing which shows the casting product cooling device by 1st Embodiment of this invention. It is sectional drawing which shows the casting product cooling device by 2nd Embodiment of this invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In addition, embodiment described below does not limit the content of this invention described in the claim. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

(First embodiment)
First, a first embodiment will be described with reference to FIGS. The casting product cooling apparatus 100 of the first embodiment is used for cooling the mold 200. The mold 200 is heated to a high temperature by being brought into contact with a metal liquid (not shown) during the casting process.
The casting product cooling device 100 cools the mold 200 from top to bottom at high speed, and the metal liquid poured into the mold 200 is solidified at high speed to achieve the effect of refining crystal grains. Is formed. Preferably, the mold 200 has a plurality of mold gaps 210, and in this embodiment, the mold 200 is a sand mold.

As shown in FIGS. 1, 2, and 3, the casting product cooling apparatus 100 includes an exhaust installation seat 110, a spacer 120, a casting frame 130, and a lid 140.
The exhaust installation seat 110 has a bottom plate 111, an outer wall 112, and at least one exhaust hole 113, and the outer wall 112 is installed on the bottom plate 111. Preferably, the bottom plate 111 and the outer wall 112 are integrally formed, and the exhaust hole 113 is installed in the outer wall 112, and the exhaust space 114 is surrounded by the outer wall 112. The outer wall 112 has an opening 112 a, the opening 112 a is exposed to the bottom plate 111, and the exhaust space 114 is communicated with the opening 112 a and the exhaust hole 113. In this embodiment, the material of the exhaust installation seat 110 is 316 stainless steel, and the hole diameter of the exhaust hole 113 is 2 inches.

As shown in FIGS. 2 and 3, the spacer 120 is installed on the outer wall 112 of the exhaust installation seat 110 and the opening 112 a is shielded by the spacer 120, and the spacer 120 has a plurality of through holes 121. The spacer 120 is penetrated by the plurality of through holes 121 and the plurality of through holes 121 communicate with the exhaust space 114. Preferably, the hole diameter range of the plurality of through holes 121 is between 20-30 mm.
As shown in FIG. 4, the spacer 120 is used for installing the mold 200. Therefore, when the mold 200 is installed on the spacer 120, the plurality of through holes 121 are shielded by the mold 200, and the plurality of mold gaps 210 are communicated with the plurality of through holes 121. In this embodiment, the material of the spacer 120 is 316 stainless steel.

  2, 3, and 4, the casting frame 130 is installed on the spacer 120. For this reason, the spacer 120 is positioned between the casting frame 130 and the exhaust installation seat 110, and the casting frame 130 has the wall portion 131 and the casting space 132, and the casting space 132 is surrounded by the wall portion 131. The casting space 132 includes a mold receiving space 132a and a molding space 132b. The mold accommodating space 132a is positioned between the spacer 120 and the molding space 132b, and the plurality of through holes 121 of the spacer 120 are communicated with the mold accommodating space 132a. The mold housing space 132a is used for housing the mold 200, and the molding space 132b is used for housing the metal liquid. When the mold 200 is installed in the mold accommodation space 132a, the mold 200 is surrounded by the wall 131, and the wall 131 has an upper end opening 131a and a lower end opening 131b. The molding space 132b is communicated with the upper end opening 131a, and the mold housing space 132a is communicated with the lower end opening 131b. In this embodiment, the material of the casting frame 130 is iron.

  Subsequently, as shown in FIG. 4, the lid 140 is installed on the wall 131 of the casting frame 130, and the upper end opening 131 a is shielded by the lid 140, and the lid 140 has at least one inlet 141. And at least one tube opening 142. The inlet 141 and the pipe opening 142 are communicated with the molding space 132b. When the metal liquid is poured into the molding space 132b via the inlet 141, the air in the molding space 132b is discharged via the tube port 142. Further, when the volume of the cast product is reduced during the solidification period, the metal liquid is replenished to the molding space 132b via the tube port portion 142, thereby preventing the hole reduction or shrinkage of the cast product. In the present embodiment, the lid 140 is a sand lid.

  As shown in FIGS. 3 and 4, an upper gap G <b> 1 is formed between the wall 131 of the casting frame 130 and the spacer 120. The upper gap G1 communicates with the mold housing space 132a and the outer space of the cast product cooling device 100. Thereby, the cold air in the external space enters the mold housing space 132a from the upper gap G1. A gas flow path is formed by the upper gap G1, the mold housing space 132a, the plurality of through holes 121, the exhaust space 114, and the exhaust hole 113.

  As shown in FIGS. 3 and 4, a lower gap G <b> 2 is formed between the spacer 120 and the outer wall 112 of the exhaust installation seat 110. The lower gap G2 communicates with the exhaust space 114 and the outer space of the cast product cooling device 100, and the gas flow path includes a lower gap G2. Thereby, the cold air in the external space enters the exhaust space 114 from the lower gap G2, and the heat energy of the mold 200 is eliminated.

Preferably, the casting product cooling device 100 further includes an exhaust device (not shown), and an exhaust pump or other exhaust equipment is optionally selected as the exhaust device.
The exhaust device is connected to the exhaust hole 122b. Preferably, the exhaust speed of the exhaust device is between 1-10 kl / sec. Hot air in the plurality of mold gaps 210 of the mold 200 is discharged to the exhaust space 114 through the plurality of through holes 121 by the exhaust device, and is discharged to the external space of the cast product cooling device 100 through the exhaust hole 113. Is done. Cold air enters the mold 200 installed in the mold accommodation space 132a via the upper gap G1. Alternatively, cold air enters the exhaust space 114 via the lower gap G2. The mold 200 is cooled at high speed from the top to the bottom by continuously exchanging cold air and hot air continuously. Further, the air in the plurality of mold gaps 210 of the mold 200 is continuously discharged, whereby the fine pattern of the mold 200 is duplicated on the cast product after solidification.

(Second Embodiment)
FIG. 5 shows the configuration of the second embodiment of the present invention. The difference from the first embodiment is that the wall 131 of the casting frame 130 further includes at least one intake hole 131c. The wall 131 is penetrated by the intake hole 131c, and the intake hole 131c communicates with the mold housing space 132a and the outer space of the cast product cooling device 100. The gas flow path is formed to include the intake hole 131c. When the mold 200 is installed in the mold housing space 132a, the intake hole 131c is shielded by the mold 200, so that cool air in the external space enters the mold 200 via the intake hole 131c and the upper gap G1 at the same time. However, the cooling effect is achieved.

  Accordingly, the embodiments disclosed herein are for the purpose of explaining, not limiting the present invention, and the spirit and scope of the present invention are not limited by such embodiments. The scope of the present invention should be construed according to the claims, and all technologies within the equivalent scope should be construed as being included in the scope of the present invention.

100 ・ ・ ・ Casting product cooling device,
110 ・ ・ ・ Exhaust installation seat,
111 ・ ・ ・ Bottom plate,
112 ・ ・ ・ Outer wall,
112a ... opening,
113 ・ ・ ・ exhaust hole,
114... Exhaust space,
120 ・ ・ ・ Spacer,
121 ... through hole,
130 ・ ・ ・ Casting frame,
131 ・ ・ ・ Wall part,
131a ... upper end opening,
131b ... lower end opening,
131c ... intake hole,
132 ・ ・ ・ Casting space,
132a ... mold receiving space,
132b ... molding space,
140 ... lid,
141... Inlet,
142...
200 ... mold,
210 ・ ・ ・ Gap,
G1 ... upper gap,
G2: Lower gap.

Claims (9)

A bottom plate, at least one exhaust hole, and an outer wall that is disposed on the bottom plate and includes an opening that surrounds the exhaust space and is exposed to the bottom plate, and the exhaust space communicates with the opening and the exhaust hole. An exhaust seat,
A plurality of through-holes, the plurality of through-holes communicating with the exhaust space, installed on the outer wall and shielding the opening, and when the mold is installed, the plurality of through-holes A shielding spacer;
A wall including an upper end opening and a lower end opening, a molding space capable of accommodating a metal liquid, and a mold accommodating space formed between the spacer and the molding space and capable of accommodating the mold, A casting frame surrounded by a wall portion, and a casting frame installed on the spacer so as to sandwich the spacer with the exhaust installation seat;
A lid having at least one injection port communicating with the molding space and at least one pipe port communicating with the molding space, installed on the wall portion and shielding the upper end opening;
With
The upper end opening communicates with the molding space,
The lower end opening communicates with the mold housing space;
An upper gap that communicates with the mold housing space and the external space is formed between the wall portion and the spacer,
A casting product cooling apparatus, wherein a gas flow path is formed by the exhaust hole, the exhaust space, the plurality of through holes, the mold accommodating space, and the upper gap. A bottom plate, at least one exhaust hole, and an outer wall that is disposed on the bottom plate and includes an opening that surrounds the exhaust space and is exposed to the bottom plate, and the exhaust space communicates with the opening and the exhaust hole. An exhaust seat,
A plurality of through-holes, the plurality of through-holes communicating with the exhaust space, installed on the outer wall and shielding the opening, and when the mold is installed, the plurality of through-holes A shielding spacer;
A wall including an upper end opening and a lower end opening, a molding space capable of accommodating a metal liquid, and a mold accommodating space formed between the spacer and the molding space and capable of accommodating the mold, A casting frame surrounded by a wall portion, and a casting frame installed on the spacer so as to sandwich the spacer with the exhaust installation seat;
A lid having at least one injection port communicating with the molding space and at least one pipe port communicating with the molding space, installed on the wall portion and shielding the upper end opening;
With
The upper end opening communicates with the molding space,
The lower end opening communicates with the mold housing space;
A lower gap communicating with the exhaust space and the external space is formed between the outer wall and the spacer,
A casting product cooling apparatus, wherein a gas flow path is formed by the exhaust hole, the exhaust space, the plurality of through holes, the mold accommodating space, and the lower gap.   The cast product cooling device according to claim 1, wherein the exhaust hole is provided in the outer wall. The wall further includes at least one air intake hole;
The intake hole is formed so that the wall portion penetrates, and communicates with the mold housing space and the external space,
The cast product cooling device according to claim 1, wherein the gas flow path is formed so as to include the intake hole. The mold has a plurality of mold gaps;
The casting product cooling apparatus according to claim 1, wherein when the mold is installed on the spacer, the plurality of mold gaps and the plurality of through holes communicate with each other.   3. The cast product cooling device according to claim 1, wherein a hole diameter of the plurality of through holes ranges from 20 mm to 30 mm. Further comprising an exhaust device connected to the exhaust hole,
The casting product cooling device according to claim 1 or 2, wherein an exhaust speed of the exhaust device is in a range of 1 kiloliter / second to 10 kiloliter / second.   3. The cast product cooling device according to claim 1, wherein the mold is a sand mold. A lower gap communicating with the exhaust space and the external space is formed between the outer wall and the spacer,
The cast gas cooling device according to claim 1, wherein the gas flow path is formed to include the lower gap.

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