TW201805090A - Cooling device of casting mold - Google Patents

Abstract

A cooling device of casting mold includes an exhausting platform, a casting frame and a partition located between the exhausting platform and the casting frame. The exhausting platform comprises an exhausting space and an air vent communicating with the exhausting space, the partition comprises a plurality of through holes communicating with the exhausting space and a casting space of the casting frame, and an upper gap communicating with outside and the casting space is formed between the casting frame and the partition. An air channel is defined by the upper gap, the casting space, the through holes, the exhausting space and the air vent, wherein a casting mold located in the casting space enables to be cooled by the air channel.

Description

Casting cooling device

The invention relates to a casting cooling device, in particular to a casting cooling device capable of rapidly lowering the temperature of a mold from bottom to top.

The conventional casting method is to set a condenser tube in the mold. When the molten metal liquid is cast into the mold, a cooling liquid (cooling water or other cooling liquid) can be introduced into the molten metal liquid through the condenser tube to reduce the molten metal liquid. The temperature causes the molten metal to rapidly solidify into castings. However, the temperature difference between the molten metal and the cooling liquid will cause condensation to form on the outside of the condensation tube. When the condensate evaporates to produce water vapor, it will easily cause the internal pressure of the mold to explode. When the cooling liquid circulates unevenly in the condensing tube, it is easy to cause uneven cooling of the molten metal and affect the quality of the casting.

The main purpose of the present invention is to provide a casting cooling device, which uses a gas flow channel formed in the casting cooling device to discharge hot air from the mold, and rapidly cools the mold from bottom to top to accelerate the solidification of molten metal.

A casting cooling device includes an extraction platform, a partition plate, a casting frame and a cover. The extraction platform has a bottom plate, an outer wall, and at least one exhaust hole. The outer wall is disposed on the bottom plate and surrounds an An extraction space, the outer wall has an opening, which exposes the bottom plate, the extraction space communicates with the opening and the extraction hole, the partition plate is disposed on the external wall and covers the opening, and the partition plate has a plurality of through holes, The through holes penetrate the partition plate and communicate with the air extraction space. The partition plate is used to carry a mold, the mold covers the through holes, the casting frame is disposed on the partition plate, and the partition plate is located on the casting frame. Between the body and the pumping platform, the casting frame has a ring wall and a casting space surrounding the casting space. The casting space includes a mold receiving space and a forming space. The mold receiving space is located at Between the partition plate and the forming space, the through holes communicate with the mold accommodating space, the mold accommodating space is used for accommodating the mold, the forming space is used for accommodating a metal liquid, and the ring wall has a top Opening and one An opening, the forming space communicates with the upper opening, the mold accommodating space communicates with the lower opening, there is an upper gap between the ring wall and the partition plate, and the upper gap communicates with the outside of the mold accommodating space and the casting cooling device Space, the upper gap, the mold accommodating space, the through holes, the air extraction space and the air extraction hole form a gas flow channel, the cover has at least one gate and at least one riser, the gate and the The riser communicates with the forming space.

A casting cooling device includes an extraction platform, a partition plate, a casting frame and a cover. The extraction platform has a bottom plate, an outer wall, and at least one exhaust hole. The outer wall is disposed on the bottom plate and surrounds an An extraction space, the outer wall has an opening, which exposes the bottom plate, the extraction space communicates with the opening and the extraction hole, the partition plate is disposed on the external wall and covers the opening, and the partition plate has a plurality of through holes, The through holes penetrate the partition plate and communicate with the extraction space. The partition plate is used to carry a mold. The mold covers the through holes. There is a gap between the partition plate and the outer wall of the extraction platform. The lower gap communicates with the extraction space and the outer space of the casting cooling device. The casting frame is disposed on the partition plate, and the partition plate is located between the casting frame and the extraction platform. The casting frame has A ring wall and a casting space, the ring wall surrounding the casting space, the casting space including a mold accommodating space and a forming space, the mold accommodating space is located between the partition plate and the forming space, and the through holes communicate A mold accommodating space for accommodating the mold, a forming space for accommodating a metal liquid, the ring wall having an upper opening and a lower opening, the forming space communicating with the upper opening, the mold accommodating space An installation space communicates with the lower opening, the lower gap, the mold accommodation space, the through holes, the exhaust space, and the exhaust hole form a gas flow channel, and the cover is disposed on the annular wall and covers the upper opening. The cover has at least one gate and at least one riser, and the gate and the riser communicate with the forming space.

The mold generates high temperature due to contact with the molten metal during the casting process, and the hot air in the mold can be quickly discharged through the mold accommodating space, the through holes, the exhaust space, and the exhaust hole in order, and the outside Cold air can continuously enter the mold accommodating space through the upper gap or the lower gap to reduce the temperature of the mold. Therefore, the casting cooling device of the present invention can rapidly cool the mold from bottom to top to accelerate the molten metal. Solidified to form a casting, so it can achieve the effect of grain refinement and increase the strength of the casting.

Please refer to FIGS. 1 to 4, which is a first embodiment of the present invention. A casting cooling device 100 is used to cool the temperature of a mold 200 which is in contact with a metal liquid during the casting process (not shown in the figure). ) Generates high temperature, so the casting cooling device 100 of the present invention can rapidly cool the mold 200 from bottom to top, so that the metal liquid cast therein can be rapidly solidified to achieve the effect of grain refining, and has a high For strength castings, preferably, the mold 200 has a plurality of air gaps 210. In this embodiment, the mold 200 is a sand mold.

Please refer to FIGS. 1 to 3. The casting cooling device 100 includes an extraction platform 110, a partition plate 120, a casting frame 130 and a cover 140. The extraction platform 110 has a bottom plate 111 and an outer wall. 112 and at least one exhaust hole 113, the outer wall 112 is disposed on the bottom plate 111, preferably, the bottom plate 111 and the outer wall 112 are integrally formed, and the exhaust hole 113 is disposed on the outer wall 112, and the outer wall 112 surrounds an exhaust Air space 114, the outer wall 112 has an opening 112a, the opening 112a reveals the bottom plate 111, the air extraction space 114 communicates with the opening 112a and the air extraction hole 113. In this embodiment, the material of the air extraction stage 110 is For 316 stainless steel, the diameter of the suction hole 113 is 2 inches.

Referring to FIGS. 2 and 3, the partition plate 120 is disposed on the outer wall 112 of the suction stage 110 and covers the opening 112 a. The partition plate 120 has a plurality of through holes 121, and the through holes 121 penetrate the space. The plate 120 communicates with the extraction space 114. Preferably, the apertures of the through holes 121 are between 20-30 mm. Please refer to FIG. 4. The spacer plate 120 is used to carry the mold 200. When the mold 200 is disposed on the spacer plate 120, the mold 200 covers the through holes 121 so that the air gaps 210 communicate with the through holes 121. In this embodiment, the material of the spacer plate 120 is 316 stainless steel .

Referring to FIGS. 2 to 4, the casting frame 130 is disposed on the partition plate 120, so the partition plate 120 is located between the casting frame 130 and the pumping stage 110. The casting frame 130 has a ring wall 131 And a casting space 132, the annular wall 131 surrounds the casting space 132, the casting space 132 includes a mold receiving space 132a and a forming space 132b, and the mold receiving space 132a is located between the partition plate 120 and the forming space 132b Meanwhile, the through holes 121 of the partition plate 120 communicate with the mold accommodating space 132a, the mold accommodating space 132a is used for accommodating the mold 200, and the forming space 132b is accommodating the metal liquid. When set in the mold accommodating space 132a, the ring wall 131 surrounds the mold 200. The ring wall 131 has an upper opening 131a and a lower opening 131b, the forming space 132b communicates with the upper opening 131a, and the mold accommodating space 132a communicates. The lower opening 131b is made of iron in this embodiment.

Referring to FIG. 4, the cover 140 is disposed on the ring wall 131 of the casting frame 130 and covers the upper opening 131 a. The cover 140 has at least one gate 141 and at least one riser 142. The gate 141 and the riser 142 communicate with the forming space 132b, the metal liquid is cast into the forming space 132b through the gate 141, and the air in the forming space 132b can be discharged through the riser 142. In addition, when the casting is solidified When the volume shrinks, the metal liquid can be replenished into the forming space 132b through the riser 142 to prevent shrinkage or loosening of the casting. In this embodiment, the cover 140 is a sand cover.

Please refer to FIGS. 3 and 4, there is an upper gap G1 between the ring wall 131 and the partition plate 120 of the casting frame 130, and the upper gap G1 communicates with the mold accommodating space 132 a and the outside of the casting cooling device 100. Space, so the cold air in the external space can enter the mold receiving space 132a through the upper gap G1, wherein the upper gap G1, the mold receiving space 132a, the through holes 121, the exhaust space 114, and the pumping space The air hole 113 forms a gas flow channel.

Please refer to FIGS. 3 and 4, the partition plate 120 and the outer wall 112 of the extraction platform 110 have a lower gap G2, which communicates with the extraction space 114 and the outer space of the casting cooling device 100. The gas flow channel includes the lower gap G2, so the cold air in the external space can enter the extraction space 114 through the lower gap G2 to exclude the heat energy of the mold 200.

Preferably, the casting cooling device 100 further includes an extraction device (not shown), which may be selected from an extraction pump or other extraction device, and the extraction device is connected to the extraction hole 122b. Preferably, the air extraction rate of the air extraction device is between 1-10 liters / second, and the hot air in the air gaps 210 of the mold 200 is evacuated through the through holes 121 by the air extraction device. To the extraction space 114 and then to the outside space of the casting cooling device 100 through the extraction hole 113, and the cold air can enter the mold 200 provided in the mold accommodation space 132a through the upper gap G1, or It enters the exhaust space 114 through the lower gap G2, and the mold 200 is rapidly cooled from the bottom to the top through continuous hot and cold gas exchange. In addition, since the air in the air gaps 210 of the mold 200 continues It is pulled out, so the solidified casting can reproduce the fine lines on the mold 200.

Please refer to FIG. 5, which is the second embodiment of the present invention. The difference from the first embodiment is that the ring wall 131 of the casting frame 130 has at least one air inlet hole 131 c. Through the annular wall 131, the air inlet hole 131c communicates with the mold accommodating space 132a and the external space of the casting cooling device 100. The gas flow channel includes the air inlet 131c. When the mold 200 is disposed in the mold accommodating space At 132a, the mold 200 covers the air inlet 131c, so the cold air in the external space can enter the mold 200 through the air inlet 131c and the upper gap G1 at the same time to achieve a cooling effect.

The protection scope of the present invention shall be determined by the scope of the appended patent application. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention. .

100‧‧‧ foundry cooling device
110‧‧‧ Pumping platform
111‧‧‧ floor
112‧‧‧outer wall
112a‧‧‧ opening
113‧‧‧Air vent
114‧‧‧Exhaust space
120‧‧‧ Spacer
121‧‧‧through hole
130‧‧‧cast frame
131‧‧‧Circle wall
131a‧‧‧ opening
131b‧‧‧ lower opening
131c‧‧‧Air inlet
132‧‧‧ Founding space
132a‧‧‧Mould accommodating space
132b‧‧‧forming space
140‧‧‧ cover
141‧‧‧Gate
142‧‧‧Riser
200‧‧‧mould
210‧‧‧air gap
G1‧‧‧ Upper clearance
G2‧‧‧ Lower clearance

Figure 1: A three-dimensional assembled view of a casting cooling device according to a first embodiment of the present invention. Fig. 2: An exploded perspective view of the casting cooling device according to the first embodiment of the present invention. Fig. 3: A sectional view of the casting cooling device according to the first embodiment of the present invention. Fig. 4: A sectional view of the casting cooling device according to the first embodiment of the present invention. Fig. 5: A sectional view of a casting cooling device according to a second embodiment of the present invention.

100‧‧‧ foundry cooling device

110‧‧‧ Pumping platform

111‧‧‧ floor

112‧‧‧outer wall

113‧‧‧Air vent

114‧‧‧Exhaust space

120‧‧‧ Spacer

121‧‧‧through hole

130‧‧‧cast frame

131‧‧‧Circle wall

132‧‧‧ Founding space

132b‧‧‧forming space

140‧‧‧ cover

141‧‧‧Gate

142‧‧‧Riser

200‧‧‧mould

210‧‧‧air gap

G1‧‧‧ Upper clearance

G2‧‧‧ Lower clearance

Claims (9)

A casting cooling device includes: an extraction platform having a bottom plate, an outer wall, and at least one extraction hole, the outer wall is disposed on the bottom plate and surrounds an extraction space, the outer wall has an opening, and the opening reveals the bottom plate The air-extraction space communicates with the opening and the air-exhaust hole; a partition plate is disposed on the outer wall and covers the opening; the partition plate has a plurality of through-holes, the through-holes penetrate the partition plate and communicate with the air-exhaustion space; The partition plate is used to carry a mold, and the mold covers the through holes; a casting frame is disposed on the partition plate, and the partition plate is located between the casting frame and the pumping platform; the casting frame The body has a ring wall and a casting space. The ring wall surrounds the casting space. The casting space includes a mold receiving space and a forming space. The mold receiving space is located between the partition plate and the forming space. The hole communicates with the mold accommodating space, the mold accommodating space is accommodating the mold, the forming space is accommodating a metal liquid, the ring wall has an upper opening and a lower opening, and the forming space communicates with the upper opening. The mold accommodating space communicates with the lower opening, and there is an upper gap between the ring wall and the partition plate. The upper gap communicates with the mold accommodating space and the external space of the casting cooling device. The upper gap and the mold accommodating space. A space, the through holes, the air extraction space, and the air extraction hole form a gas flow channel; and a cover body disposed on the annular wall and covering the upper opening, the cover body having at least one gate and at least one The riser, the gate and the riser communicate with the forming space. A casting cooling device includes: an extraction platform having a bottom plate, an outer wall, and at least one extraction hole, the outer wall is disposed on the bottom plate and surrounds an extraction space, the outer wall has an opening, and the opening reveals the bottom plate The air-extraction space communicates with the opening and the air-exhaust hole; a partition plate is disposed on the outer wall and covers the opening; the partition plate has a plurality of through-holes, the through-holes penetrate the partition plate and communicate with the air-exhaustion space; The partition plate is used to carry a mold, the mold covers the through holes, and there is a lower gap between the partition plate and the outer wall of the pumping platform, and the lower gap communicates with the pumping space and the casting cooling device. An external space; a casting frame disposed between the casting frame and the suction platform, the casting frame having a ring wall and a casting space, the ring wall surrounding the casting Space, the casting space includes a mold receiving space and a forming space, the mold receiving space is located between the partition plate and the forming space, the through holes communicate with the mold receiving space, and the mold receiving space is empty The forming space is used for accommodating the mold, the forming space is used for accommodating a metal liquid, the ring wall has an upper opening and a lower opening, the forming space communicates with the upper opening, the mold accommodating space communicates with the lower opening, and the lower gap The mold accommodating space, the through holes, the air extraction space and the air extraction hole form a gas flow channel; and a cover body is disposed on the annular wall and covers the upper opening, and the cover body has at least one pouring And the at least one riser, the gate and the riser communicate with the forming space. The casting cooling device according to item 1 or 2 of the scope of patent application, wherein the exhaust hole is provided on the outer wall. The casting cooling device according to item 1 or 2 of the scope of patent application, wherein the ring wall of the casting frame has at least one air inlet hole penetrating the ring wall, and the air inlet hole communicates with the mold container. Installation space and external space of the casting cooling device, the gas flow channel includes the air inlet hole. The casting cooling device according to item 1 or 2 of the patent application scope, wherein the mold has a plurality of air gaps, and when the mold is disposed on the partition plate, the air gaps communicate with the through holes. The casting cooling device according to item 1 or 2 of the scope of patent application, wherein the diameter of the through holes is between 20-30 mm For example, the casting cooling device described in item 1 or 2 of the patent application scope further includes an air extraction device connected to the air extraction hole, and the air extraction rate of the air extraction device is between 1-10 liters per second. between. The casting cooling device according to item 1 or 2 of the patent application scope, wherein the mold is a sand mold. The casting cooling device according to item 1 of the scope of the patent application, wherein the partition plate and the outer wall of the extraction platform have a lower gap, and the lower gap communicates with the extraction space and the outer space of the casting cooling device, The gas flow channel includes the lower gap.