CN112317722A

CN112317722A - Mould for casting castings

Info

Publication number: CN112317722A
Application number: CN202011166916.6A
Authority: CN
Inventors: 朱尉榕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-02-05

Abstract

The invention discloses a die for casting a casting, which comprises an equipment frame, a crucible cavity, a support frame, a hydraulic cylinder, an upper template, a concave die groove, a lower template, a first torsion spring, a convex module, a water storage tank, a conveying pipe, an air charging port, a cooling cavity, a first through hole, a driving part, a cooling part and a communicating part, wherein the crucible cavity is arranged on the equipment frame; the invention cools the die in the process of casting, realizes quick cooling and shaping in the casting inside the die and improves the production efficiency.

Description

Mould for casting castings

Technical Field

The invention belongs to the technical field of casting of castings, and particularly relates to a casting mold.

Background

There are many methods for casting a casting with a mold, in which a high-temperature molten metal is introduced into the mold in a counter-flow manner by a negative pressure method by means of pressure casting, and although the casting produced by this method has high quality and accuracy, the production efficiency of the product is low because the time for the liquid in the mold to solidify into the casting is long due to the long cooling time.

Disclosure of Invention

The invention provides a casting die which is used for casting a casting and can be cooled for multiple times and improve the forming speed of the casting in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a casting mold comprises an equipment frame, a crucible cavity arranged on the equipment frame, a support frame, a hydraulic cylinder arranged on the support frame, an upper template arranged on the hydraulic cylinder, a concave die groove arranged on the upper template, a lower template symmetrically and rotatably arranged on the equipment frame, a first torsion spring used for resetting the lower template, a convex module arranged on the lower template, a water storage tank circumferentially arranged on the equipment frame, a conveying pipe used for enabling molten metal in a crucible to flow back to the die groove, an air charging port used for providing air pressure for the crucible cavity, a cooling cavity used for cooling a template casting, a first through hole communicated with the cooling cavity and the water storage tank, a driving component, a cooling component and a communicating component; the driving part comprises arc-shaped blocks symmetrically arranged on the lower template, arc-shaped grooves symmetrically arranged on the upper template, connecting rods with two ends respectively arranged on the arc-shaped blocks, a plurality of discharging blocks arranged on the connecting rods, limiting blocks used for limiting the rotation of the arc-shaped blocks, first cooling assemblies arranged on the arc-shaped blocks and first driving assemblies arranged on the arc-shaped blocks.

When the hydraulic cylinder starts to work, the upper template moves downwards, the arc-shaped blocks of the lower template can enter the arc-shaped grooves to push the arc-shaped blocks to select inward measurement firstly in the moving process, the connecting rod moves towards the inside of the lower template, so that on one hand, the discharging blocks on the connecting rod can be reset to prepare for discharging of cast castings, on the other hand, the impact force on the lower template can be buffered, and when the lower template is pushed to rotate downwards, the arc-shaped blocks are firstly put into the arc-shaped grooves of the upper template to improve the fixing capacity, avoid the problem of dislocation between the concave mould grooves and the convex modules, increase the quality and fineness of finished castings, and the lower template can move downwards until the two lower templates are combined together to form a cavity between the concave mould grooves and the convex modules and keep the communication part communicated with the conveying pipe in the combining process, the cooling part is passed through, water in the cooling cavity is sprayed into the lower template partially, the lower template is cooled in advance, then the crucible cavity is inflated through the air charging port, the internal air pressure is increased, in this way, negative pressure can be formed in the conveying pipe, metal in the crucible is enabled to flow back to the model cavity through the communicating part liquid, because the lower template is cooled in advance, the temperature difference of the lower template and high-temperature metal liquid can be enabled to directly send out through heat transfer, heat in the metal liquid is enabled to be rapidly transferred out, at the moment, the lower template is tightly attached to the upper end of the equipment, at the moment, the whole of the upper mold is closest to the cooling cavity, the cooling cavity is filled with water, and due to the fact that the specific heat capacity of the lower template is large, the temperature in the metal liquid can be rapidly transferred to water in the cooling cavity, metal water is rapidly cooled, and a casting is rapidly formed; then the upper template is moved upwards by the hydraulic cylinder, in the moving process, the arc-shaped groove is firstly pulled to rotate, moisture in the arc-shaped groove can be sprayed out when the arc-shaped groove rotates, the side of the model cavity can be quickly cooled under the evaporation of moisture, and at the time of cooling, because the arc-shaped block rotates outwards, the connecting rod can move upwards under the rotation of the arc-shaped block, then the unloading block also moves upwards and can push against the formed casting through the convex module, so that the thin-wall casting is loosened, and the casting can also fall off from the concave mold groove on the upper template through self-weight, so that an operator can directly take out the casting without specially stripping the casting, at the moment, the upper template is upwards connected, the lower template is outwards turned, one end of the lower template is also pressed against the cooling parts on two sides, water is sprayed out again, and moisture is evaporated, the processed upper template and the processed lower template are rapidly cooled, and the second processing is carried out again, so that the operation is repeated. Wherein because cooling chamber and catch basin are the intercommunication, so after moisture in the cooling chamber is heated, the heat can disperse to whole catch basin on for water in the cooling chamber also rapid cooling, through increasing the temperature difference, realizes the heat transfer effect, can improve thermal transfer once more, makes the foundry goods cool off the shaping fast, thereby increases equipment work efficiency, increases output.

The first cooling assembly comprises an empty groove arranged on the equipment frame, a second through hole used for communicating the empty groove with the cooling cavity, a first extrusion block arranged on the empty groove in a vertically-displaceable manner, a connecting pipe arranged on the first extrusion block, a first connecting port arranged on the equipment frame, a second connecting port arranged on the arc-shaped block, a first extrusion cavity arranged on the arc-shaped block, and a first jet orifice arranged on the arc-shaped block; when the arc block rotates, the first connecting port, the second connecting port and the first extrusion cavity can be communicated simultaneously. First drive assembly is including locating fixed block on the cope match-plate pattern, rotationally in locating gear on the fixed block, locate first stripper plate on the arc piece, locate on the first stripper plate and with the gear locates like meshed first circular arc tooth, slidable on the fixed block and with gear engaged with second circular arc tooth.

When the arc block enters the arc groove, the upper wall of the groove pushes the arc block to rotate inwards, the first connecting port is communicated with the second connecting port, the first arc tooth also starts to rotate due to the rotation of the arc block, the second arc tooth is reset through the gear, in this way, when the upper template pushes the lower template to rotate downwards, the first connecting port, the second connecting port and the first extrusion cavity are communicated, then the lower template rotates downwards to enable the first connecting port to enter the connecting pipe, the lower template moves downwards to push the first extrusion block to move towards the empty groove, at the moment, under the thrust of the second extrusion block, water in the empty groove enters the first extrusion cavity through the connecting pipe, the first connecting port and the second connecting port, and when the upper template needs to be lifted upwards after a casting is formed, the arc block is pushed by the lower wall of the arc groove to rotate upwards, at the moment, the arc-shaped block can rotate anticlockwise, when the arc-shaped block rotates, the first connecting port and the second connecting port are sealed, so that the liquid in the first extrusion cavity can not be discharged from the direction of the second connecting port, and because the fixed block is connected with the arc-shaped block, the fixed block can also rotate anticlockwise so that the water in the first extrusion cavity is extruded, furthermore, the first arc-shaped teeth are connected with the fixed block again so as to rotate anticlockwise, the second arc-shaped teeth can rotate clockwise through the gear, in the first extrusion cavity, the first arc-shaped teeth rotate anticlockwise, the second arc-shaped teeth rotate clockwise, so that the liquid in the wall can be rapidly extruded, and in this way, the moisture can be discharged from the first injection port in a short time, the side wall of the die-shaped groove is cooled, at the moment, because the casting is still on the die, the temperature is highest, so that a large amount of heat can be taken away through the high-temperature gasification mode of water, the cooling purpose is achieved, the cooling speed of the casting inside the die is increased, and the casting is quickly molded; then the cope match-plate pattern up movement, first extrusion piece can reset under the effect of spring this moment, and the negative pressure that produces when resetting can enter into the dead slot on the water in the cooling chamber through the second opening, wherein is equipped with the check valve in the second opening for water in the dead slot can only go out from the connecting pipe at last, prepares for the processing casting next time.

The cooling component comprises a second extrusion plate which is rotatably arranged on the cooling cavity, a one-way valve arranged on the second extrusion plate, a second extrusion cavity arranged on the cooling cavity, a second jet orifice communicated with the second extrusion cavity, a second extrusion block arranged on the second extrusion plate, a second torsion spring for resetting the second extrusion plate, a sliding block arranged on the equipment frame, a first spring for resetting the sliding block and a second cooling assembly arranged on the sliding block; the first torsion spring is connected with the sliding block.

When the work is not started, the sliding block is at the rightmost side, so that one ends of the two lower templates touch first when the two lower templates rotate inwards to prevent gaps from appearing, and the two symmetrical lower dies can have good sealing effect through the thrust of the first spring, and the molten metal can only be in a die cavity to prevent outflow and keep certain thrust and have certain buffering effect to keep sealing all the time when the two lower dies work, the first torsion spring is arranged at the rightmost side of the sliding block, the action process is that the two lower dies rotate inwards first and then the two ends are contacted to achieve preliminary sealing, the lower dies rotate inwards next, the sliding block moves towards the right side under the action of mutual force, the elastic force of the first spring is larger along with the movement, the sealing effect is better and better until the complete sealing position, wherein, when the lower die rotates inwards, the lower die can push against the second extrusion block, the second extrusion plate is rotated through the second extrusion block, water in the second extrusion cavity can come out of the second injection port, the second extrusion blocks and the second injection ports are arranged in a staggered mode, and most of water can be sprayed on the lower die and cannot be blocked by the second extrusion plate when the second injection port sprays the water. At this moment, the lower die is cooled in the rotation, and the molten metal does not enter the die, so the temperature of the lower die is lowered in advance, and then the molten metal is poured into the die, and the temperature difference is large, so that the heat in the high-temperature molten metal can be rapidly taken away, the casting forming speed is increased, and the working efficiency is improved.

The second cooling assembly comprises a third extrusion cavity arranged on the equipment frame, a third extrusion block slidably arranged on the third extrusion cavity, a third jet orifice communicated with the third extrusion cavity, a second spring used for resetting the third extrusion block, a third connecting port arranged on the third extrusion cavity, a fourth connecting port arranged on the sliding block, a fifth connecting port arranged on the equipment frame, a groove arranged on the first connecting port and an adjusting block arranged on the sliding block; one end of the adjusting block is positioned in the groove.

After the processing is finished, the upper die moves upwards, then the two dies are unsealed through the arc-shaped block and rotate outwards, the slide block moves to the rightmost side under the thrust of the first spring due to no reaction force, the molded casting is taken out, at the moment, due to the fact that the pressure of the casting is not available, the lower die can be unfolded outwards under the action of the first torsion spring, one end of the lower die can prop against the third extrusion plate when the lower die is unfolded, the slide block is arranged at the rightmost side, the fourth connecting port is arranged at the rightmost side, in this way, the third connecting port, the fourth connecting port and the fifth connecting port are not communicated, water in the third extrusion cavity cannot flow towards the third connecting port, only water in the third extrusion cavity can be sprayed out from the third spraying port through the extrusion of the third extrusion plate, and therefore the dies with the castings taken out are cooled, reducing the heat left by the casting in the mold; then when the next one is processed, the lower die rotates towards the inner side to combine the two lower dies into one, the slide block slides to the side by the interaction force, so that the fourth connecting port slides to the left, so that the third connecting port, the fourth connecting port and the fifth connecting port are communicated with each other, and the third jet port is provided with a check valve for preventing backflow, under the action of the second spring, the third extrusion cavity generates negative pressure, so that water in the water storage tank can enter the third extrusion cavity through the fifth connecting port, the fourth connecting port and the third connecting port to realize reset, and is ready for the next injection and, when the slide is at the extreme left end, the adjusting block will abut against the left side of the groove, bringing the cooling chamber into a sealed condition, which, when the second pressing plate is rotated, water can be more easily ejected from the second ejection port.

The intercommunication part is including can locating with reciprocating heat insulating ring on the transport pipe, locate sealed piece on the heat insulating ring, locate sealing ring on the bed die, locate logical liquid mouth on the sealing ring, locate disappointing hole on the transport pole.

When two bed dies merge, the sealing ring also merges into a whole, then when the bed die is toward the internal rotation, the sealing ring also can down move, enter into the top of transport pipe, can push against thermal-insulated ring down and move, on the one hand thermal-insulated ring down moves and can block up the disappointing hole, let transport pipe internal seal, on the other hand is greater than sealed piece owing to lead to the empty diameter of liquid, because sealed piece is with transport pipe fixed connection, so when thermal-insulated ring down moves, sealed piece is owing to can not remove and relieve encapsulated situation, make when filling the gas mouth and ventilating at last, let the whole adverse current of metal liquid on the die type groove. After the processing is ended, thermal-insulated ring will be at the effect of spring down up removal, the hole of losing heart is ventilated this moment for no longer sealed in the transport pipe, like this can let the metal liquid on the transport pipe flow back on the crucible chamber, quick separation prevents to cool off and adhere on the lateral wall in the transport pipe, wherein thermal-insulated ring can completely cut off inside and outside heat, like this, after the outside becomes the foundry goods through the water spray cooling, inside still has very high temperature and separates easily, prevent that the heat from scattering and disappearing, and then increase work efficiency.

In summary, the invention has the following advantages: in the process of casting the die, the die is cooled, so that the casting inside the die is rapidly cooled and shaped, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional perspective view of fig. 2 taken along a-a.

Fig. 4 is a cross-sectional perspective view of fig. 2 taken along B-B.

Fig. 5 is a schematic view of a lower mold in the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is an enlarged view at B in fig. 3.

Fig. 8 is an enlarged view at C in fig. 4.

Fig. 9 is an enlarged view at D in fig. 4.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 9, a mold for casting a casting includes an equipment rack 1, a crucible cavity 11, a support frame 12, a hydraulic cylinder 121, an upper mold plate 13, a female mold groove 131, a lower mold plate 14, a first torsion spring 141, a male mold block 142, a water storage tank 15, a conveying pipe 16, a gas filling port 17, a cooling cavity 18, a first port 19, a driving part 2, a cooling part 5, and a communicating part 7; crucible chamber 11 is located on equipment frame 1, and on support frame 12 was located to pneumatic cylinder 121, on pneumatic cylinder 121 was located to cope match-plate pattern 13, die groove 131 located on cope match-plate pattern 13, lower bolster 14 rotationally the symmetry was located on equipment frame 1, and first torsion spring 141 is used for the lower bolster 14 to reset, and protruding module 142 is located on lower bolster 14, and catch basin 15 encircles and locates on equipment frame 1, transport pipe 16 is used for the metal liquid in the crucible to the die groove against the current, and it is right that gas filling port 17 is used for crucible chamber 11 provides atmospheric pressure, and cooling chamber 18 is used for cooling down the template foundry goods, first opening 19 be used for with cooling chamber 18 with catch basin 15 is linked together.

As shown in fig. 1, 5 and 6, the driving part 2 includes an arc-shaped block 21, an arc-shaped groove 22, a connecting rod 23, a plurality of discharging blocks 24, a limiting block 25, a first cooling assembly 3 and a first driving assembly 4; the arc-shaped blocks 21 are symmetrically arranged on the lower template 14, the arc-shaped grooves 22 are symmetrically arranged on the upper template 13, two ends of the connecting rod 23 are respectively arranged on the arc-shaped blocks 21, the discharging blocks 24 are arranged on the connecting rod 23, the limiting block 25 is used for limiting the rotation of the arc-shaped blocks 21, the first cooling assembly 3 is arranged on the arc-shaped blocks 21, and the first driving assembly 4 is arranged on the arc-shaped blocks 21.

As shown in fig. 5, 6 and 7, the first cooling module 3 includes a hollow groove 31, a second port 32, a first extrusion block 33, a connecting pipe 34, a first connecting port 35, a second connecting port 36, a first extrusion cavity 37 and a first injection port 38; the hollow groove 31 is arranged on the equipment frame 1, the second through hole 32 is used for communicating the hollow groove 31 and the cooling cavity 18, the first extrusion block 33 is arranged on the hollow groove 31 in a vertically displaceable manner, the connecting pipe 34 is arranged on the first extrusion block 33, the first connecting port 35 is arranged on the equipment frame 1, the second connecting hole 36 is arranged on the arc-shaped block 21, the first extrusion cavity 37 is arranged on the arc-shaped block 21, and the first injection port 38 is arranged on the arc-shaped block 21; when the arc block rotates, the first connection port 35, the second connection port 36 and the first extrusion cavity 37 can be simultaneously communicated.

As shown in fig. 6, the first driving assembly 4 includes a fixed block 41, a gear 42, a first pressing plate 43, a first circular arc tooth 44, and a second circular arc tooth 45; fixed block 41 is located on the cope match-plate pattern 13, gear 42 rotationally in locating on the fixed block 41, first stripper plate 43 is located on the arc piece 21, first circular arc tooth 44 is located on the first stripper plate 43 and with gear 42 is like the meshing, and second circular arc tooth 45 slidable is located on the fixed block 41 and with gear 42 meshes mutually.

As shown in fig. 8 and 9, the cooling unit 5 includes a second pressing plate 51, a one-way valve 52, a second pressing chamber 53, a second injection port 54, a second pressing block 55, a second torsion spring 56, a slider 57, a first spring 58, and a second cooling assembly 6; the second extrusion plate 51 is rotatably arranged on the cooling cavity 18, the check valve 52 is arranged on the second extrusion plate, the second extrusion cavity 53 is arranged on the cooling cavity 18, the second injection port 54 is communicated with the second extrusion cavity 53, the second extrusion block 55 is arranged on the second extrusion plate 51, the second torsion spring 56 is used for resetting the second extrusion plate 51, the sliding block 57 is arranged on the equipment frame 1, the first spring 58 is used for resetting the sliding block 57, and the second cooling assembly 6 is arranged on the sliding block 57; the first torsion spring 141 is connected to the slider 57.

As shown in fig. 9, the second cooling block 6 includes a third pressing cavity 61, a third pressing block 62, a third injection port 63, a second spring 64, a third connection port 65, a fourth connection port 66, a fifth connection port 67, a groove 68, and an adjustment block 69; a third extrusion cavity 61 is arranged on the equipment frame 1, a third extrusion block 62 is slidably arranged on the third extrusion cavity 61, a third injection port 63 is communicated with the third extrusion cavity 61, a second spring 64 is used for resetting the third extrusion block 62, a third connecting port 65 is arranged on the third extrusion cavity 61, a fourth connecting port 66 is arranged on the sliding block 57, a fifth connecting port 67 is arranged on the equipment frame 1, a groove 68 is arranged on the first through port 19, and an adjusting block 69 is arranged on the sliding block 57; one end of the adjusting block 69 is located in the groove 68.

As shown in fig. 5 and 8, the communication component 7 includes a heat insulation ring 71, a sealing block 72, a sealing ring 73, a liquid through port 74 and a gas release hole 75; the heat insulation ring 71 is arranged on the conveying pipe 16 in a vertically movable mode, the sealing block 72 is arranged on the heat insulation ring 71, the sealing ring 73 is arranged on the lower die, the liquid through port 74 is arranged on the sealing ring 73, and the air release hole 75 is formed in the conveying rod.

The specific working process is as follows:

start hydraulic cylinder 121, cope match-plate pattern 13 moves down, the arc piece 21 of lower bolster 14 enters into the arc 22 gradually, cope match-plate pattern 13 moves then, push up lower bolster 14, make the lower bolster 14 of both sides rotate inwards, can push up second extrusion piece 55 and move down when lower bolster 14 moves down, can let second jet 54 blowout moisture through the extrusion, when the upper die is laminated with the lower die, air entrainment mouth 17 air entrainment, let the metal liquid from the transport pipe 16 on the die cavity against the current, when needs take out the mould, cope match-plate pattern 13 moves up, arc piece 21 upward movement can be pulled to arc 22, through the extrusion, can let first jet 38 blowout moisture, when the lower die opens, third extrusion piece 62 is pushed up to lower die one end, can let third jet 63 blowout moisture through the extrusion.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a mould for casting of foundry goods, includes equipment frame (1), locates crucible chamber (11), support frame (12) on equipment frame (1), locate pneumatic cylinder (121) on support frame (12), locate cope match-plate pattern (13) on pneumatic cylinder (121), locate concave die cavity (131) on cope match-plate pattern (13), rotationally the symmetry locate lower bolster (14) on equipment frame (1), be used for first torsional spring (141) that lower bolster (14) reset, locate convex module (142) on lower bolster (14), locate with encircling catch basin (15) on equipment frame (1), be used for the conveying pipe (16) that metal liquid in the crucible arrived on the die cavity against the current, be used for right crucible chamber (11) provide gas pressure with gas port (17), be used for cooling chamber (18) to the template foundry goods cooling, be used for with cooling chamber (18) with first opening (19) that catch basin (15) are linked together, A drive member (2), a cooling member (5), and a communication member (7); the method is characterized in that: the driving part (2) comprises arc-shaped blocks (21) symmetrically arranged on the lower template (14), arc-shaped grooves (22) symmetrically arranged on the upper template (13), connecting rods (23) arranged on the arc-shaped blocks (21), a plurality of discharging blocks (24) arranged on the connecting rods (23), limiting blocks (25) used for limiting the rotation of the arc-shaped blocks (21), a first cooling assembly (3) arranged on the arc-shaped blocks (21) and a first driving assembly (4) arranged on the arc-shaped blocks (21).

2. The mold for casting a casting according to claim 1, wherein: the first cooling assembly (3) comprises an empty groove (31) arranged on the equipment frame (1), a second through hole (32) used for communicating the empty groove (31) with the cooling cavity (18), a first extrusion block (33) arranged on the empty groove (31) in a vertically-displaceable manner, a connecting pipe (34) arranged on the first extrusion block (33), a first connecting port (35) arranged on the equipment frame (1), a second connecting port (36) arranged on the arc-shaped block (21), a first extrusion cavity (37) arranged on the arc-shaped block (21), and a first jet orifice (38) arranged on the arc-shaped block (21); when the arc block rotates, the first connecting port (35), the second connecting port (36) and the first extrusion cavity (37) can be communicated simultaneously.

3. The mold for casting a casting according to claim 1, wherein: first drive assembly (4) including locating fixed block (41) on cope match-plate pattern (13), rotationally in locating gear (42) on fixed block (41), locate first stripper plate (43) on arc piece (21), locate on first stripper plate (43) and with gear (42) like meshing first circular arc tooth (44), locate slidable on fixed block (41) and with gear (42) engaged with second circular arc tooth (45).

4. The mold for casting a casting according to claim 1, wherein: the cooling component (5) comprises a second extrusion plate (51) rotatably arranged on the cooling cavity (18), a one-way valve (52) arranged on the second extrusion plate, a second extrusion cavity (53) arranged on the cooling cavity (18), a second injection port (54) communicated with the second extrusion cavity (53), a second extrusion block (55) arranged on the second extrusion plate (51), a second torsion spring (56) used for resetting the second extrusion plate (51), a sliding block (57) arranged on the equipment frame (1), a first spring (58) used for resetting the sliding block (57), and a second cooling component 6 arranged on the sliding block (57); the first torsion spring (141) is connected with the sliding block (57).

5. The mold for casting a casting according to claim 4, wherein: the second cooling assembly (6) comprises a third extrusion cavity (61) arranged on the equipment frame (1), a third extrusion block (62) slidably arranged on the third extrusion cavity (61), a third injection port (63) communicated with the third extrusion cavity (61), a second spring (64) used for resetting the third extrusion block (62), a third connecting port (65) arranged on the third extrusion cavity (61), a fourth connecting port (66) arranged on the sliding block (57), a fifth connecting port (67) arranged on the equipment frame (1), a groove (68) arranged on the first through port (19), and an adjusting block (69) arranged on the sliding block (57); one end of the adjusting block (69) is positioned in the groove (68).

6. The mold for casting a casting according to claim 1, wherein: the communicating component (7) comprises a heat insulation ring (71) which can be arranged on the conveying pipe (16) in a vertically moving mode, a sealing block (72) arranged on the heat insulation ring (71), a sealing ring (73) arranged on the lower die, a liquid through hole (74) arranged on the sealing ring (73) and a gas release hole (75) arranged on the conveying rod.