CN121017509A - An aluminum alloy casting equipment - Google Patents
An aluminum alloy casting equipmentInfo
- Publication number
- CN121017509A CN121017509A CN202511564219.9A CN202511564219A CN121017509A CN 121017509 A CN121017509 A CN 121017509A CN 202511564219 A CN202511564219 A CN 202511564219A CN 121017509 A CN121017509 A CN 121017509A
- Authority
- CN
- China
- Prior art keywords
- groove
- die holder
- mold base
- air
- aluminum alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/08—Controlling, supervising, e.g. for safety reasons
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the technical field of casting, and particularly relates to aluminum alloy casting equipment, which comprises an upper die holder and a lower die holder, wherein a first hydraulic cylinder is arranged at the top of the upper die holder, a second hydraulic cylinder is arranged at the bottom of the lower die holder, a male die is arranged at the bottom of the upper die holder, a first return groove is formed in the outer ring of the male die, channels are formed in the four sides of the first return groove, a pouring groove is formed in the top of the upper die holder, a pouring opening is formed in the bottom of the pouring groove, a first electric push rod is fixed at the top of a ceramic rod, four sealing plates are fixed on the circumferential line of the top of the upper die holder, a rectangular groove is formed in the lower die holder, a female die bin is arranged in the rectangular groove in a sliding mode, a second electric push rod is arranged at the bottom of the female die bin, the other side of the second electric push rod is arranged at the bottom of the rectangular groove, and an auxiliary mechanism is further arranged.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to aluminum alloy casting equipment.
Background
The aluminum alloy has become an indispensable key material in the fields of aerospace, automobile manufacturing, rail transportation, electronic communication and the like by virtue of the advantages of small density, high specific strength, strong corrosion resistance, excellent heat and electric conductivity, good recoverability and the like, and the aluminum alloy casting is a technological process of casting a liquid aluminum alloy melt into a mold cavity after smelting and component adjustment of an aluminum alloy ingot or waste, and obtaining a casting with a specific shape through cooling solidification and post treatment.
The casting mould is a carrier for forming the molten aluminum alloy, and has the core functions of forming a closed cavity consistent with the shape of a casting through the mould closing of the upper mould base and the lower mould base, and ensuring the stable filling, smooth air discharge and uniform solidification of the molten aluminum alloy through the synergistic effect of a pouring system, an air discharge system and a cooling system.
In aluminum alloy casting, air remains in a closed cavity formed by an upper die holder and a lower die holder after die assembly, the air is difficult to naturally exhaust due to the sealing of the cavity, air is wrapped and entrained in the molten aluminum alloy in the flowing process of the molten aluminum alloy in the cavity during casting, particularly when the molten aluminum alloy flows too fast or a casting system is unreasonable in design, the air is more easily involved and mixed in the molten aluminum alloy, meanwhile, as the die is used for a long time, an exhaust groove is easily blocked by metal scraps, oxide scales and the like, so that the air in the cavity cannot be effectively exhausted through an exhaust system, and finally the air is accumulated in the cavity and mixed in the molten aluminum alloy.
When gas exists in the melt, the gas can form air holes in the cooling and solidification process of the melt, wherein the air holes comprise subsurface air holes and internal dispersed air holes, and the air holes can damage the continuity of a metal structure, so that the mechanical properties such as tensile strength, elongation and the like of the casting are obviously reduced.
Disclosure of Invention
In order to overcome the defects in the prior art and solve the technical problems, the invention provides aluminum alloy casting equipment, which can be used for pumping out the gas in a cavity and avoiding the gas from being carried into the cavity by arranging an auxiliary mechanism;
The aluminum alloy casting equipment comprises an upper die holder and a lower die holder, wherein a first hydraulic cylinder is arranged at the top of the upper die holder;
the outer ring of the male die is provided with a first return groove, and four sides of the first return groove are provided with channels;
The upper die holder is characterized in that a pouring groove is formed in the top of the upper die holder, and the pouring groove is hemispherical, a pouring opening is formed in the bottom of the pouring groove, and a ceramic rod is arranged in the pouring opening and is used for plugging the pouring opening;
the ceramic rod is fixed with a first electric push rod at the top, and the other side of the first electric push rod is arranged at the top of the upper die holder through a mounting rack;
The die comprises a lower die seat, a lower die seat and a lower die seat, wherein a rectangular groove is formed in the lower die seat;
the female die bin is opposite to the first return groove, the wall thickness of the female die bin is smaller than the groove width of the first return groove, a second electric push rod is arranged at the bottom of the female die bin, and the other side of the second electric push rod is arranged at the bottom of the rectangular groove.
The invention is a preferable mode, and also comprises an auxiliary mechanism, wherein the auxiliary mechanism comprises a guide cylinder, and the bottom of the guide cylinder is closed and is arranged on a workbench;
The upper die holder and the lower die holder are respectively connected with the inside of the guide cylinder in a sliding way, and the lower die holder is arranged at the bottom of the guide cylinder in a sliding way and is attached to the bottom of the guide cylinder, and a piston disc is fixed at the bottom of the lower die holder;
The upper die holder is provided with long grooves on the outer ring surface of the guide cylinder, and the long grooves correspond to the sealing plates one by one;
the bottom of each air bin is fixedly provided with a guide pipe, the other side of each guide pipe is communicated with the bottom space of the lower die holder, one side of each guide pipe, which is communicated with the bottom space of the lower die holder, is provided with a one-way valve, the bottom of each guide cylinder is provided with an air hole, and the air hole is internally provided with the one-way valve.
As a preferable mode of the invention, the top of the upper die holder is provided with two n-type frames;
the extension rod of the first hydraulic cylinder penetrates through the circular groove and extends into the n-type frame, and the diameter of the extension rod of the first hydraulic cylinder is smaller than that of the circular groove;
One side of the extension rod of the first hydraulic cylinder, which penetrates through the circular groove, is fixed with a circular ring, and a distance is reserved between the circular ring and the n-type frame.
As a preferable mode of the invention, the bottom of the circular ring is fixedly provided with a spring, and the other side of the spring is fixed on the surface of the upper die holder;
the extension rod of the first hydraulic cylinder below the circular ring is positioned on the inner ring of the spring.
As a preferred form of the invention, the guide cylinder top is rounded off.
As a preferable mode of the invention, a square groove is formed on one side of the ceramic rod extending into the pouring gate.
As a preferable mode of the invention, a rectangular notch is arranged on the outer ring of the female die bin, the rectangular notch penetrates through the bottom of the female die bin, and the top of the rectangular notch is spaced from the upper surface of the female die bin;
The rectangular groove outer ring is positioned in the inner wall of the lower die holder and is provided with a second return groove, the top of the second return groove is provided with uniformly arranged air grooves, and the air grooves are respectively in one-to-one correspondence with the four channels;
an air pipe is arranged at the top of each air bin and is communicated with external cooling air;
the four surfaces of the second rectangular groove facing the rectangular groove are provided with uniformly arranged first air holes;
The bottom of the rectangular groove is provided with a through hole, and a one-way valve is arranged in the through hole.
As a preferable mode of the invention, a return plate is arranged in the second return groove;
the bottom of the square plate is fixedly provided with a square frame which is attached to the second square groove, springs which are uniformly arranged are fixed at the bottom of the square frame, and the other side of each spring is fixed at the bottom of the second square groove;
The second air holes are uniformly distributed in the rectangular plate, and the second air holes are staggered with the first air holes in the initial state.
As a preferable mode of the invention, the bottom of the female die bin is provided with third electric push rods which are uniformly arranged, and the third electric push rods are positioned at two sides of the second electric push rods;
and the extension rod of the third electric push rod is fixedly provided with a thimble, and the thimble extends to the inside of the female die bin and is flush with the bottom surface of the inside of the female die bin.
In a preferred mode of the invention, dislocation grooves are formed on four surfaces of the rectangular groove below the second return groove.
The beneficial effects of the invention are as follows:
1. The aluminum alloy casting equipment provided by the invention has the advantages that the upper die holder and the lower die holder are synchronously moved upwards, the piston disc at the bottom of the lower die holder is driven to move upwards, negative pressure is formed at the bottom of the lower die holder, gas in the gas bin is pumped through the guide pipe, the gas bin is communicated with a space between the male die and the die cavity through the long groove and is matched with the continuous movement of the channel along the long groove, continuous pumping of the associated spaces such as the die cavity, the first circular groove and the channel is realized, meanwhile, the negative pressure sensor monitors the negative pressure state in the gas bin in real time, the fact that the die cavity is accurately pumped to a stable negative pressure environment is ensured, the hidden danger of air retention caused by die cavity sealing after die assembly in the traditional casting is eliminated fundamentally, the air hole is avoided from being formed in the cooling process, meanwhile, excessive molten liquid is poured into the hemispherical casting groove, the molten liquid is stably pressed into the die cavity by using the external atmospheric pressure, and turbulent flow and splashing of the molten liquid caused by too fast flow speed or unreasonable design of a casting system in the traditional casting process are avoided, and the possibility of being wrapped by air is fundamentally reduced.
2. According to the aluminum alloy casting equipment, the female die bin is tightly attached to the first return groove, the female die bin and the male die form a complete cavity at the moment, so that edge gaps of attaching surfaces of the upper die holder and the lower die holder are physically blocked, burrs are prevented from being formed at the gaps due to the gaps between the upper die holder and the lower die holder, meanwhile, the outer contours of the upper die holder and the lower die holder are designed to be cylindrical and are in sliding connection with the inside of the guide cylinder, and in the process of die assembly and synchronous movement, the inner wall of the guide cylinder forms omnibearing radial constraint on the upper die holder and the lower die holder, the upper die holder is ensured to move downwards along the central axis of the guide cylinder all the time, and the problem that the traditional die is offset and misplaced due to the fact that gaps are generated due to the misplacement is fundamentally solved.
3. According to the aluminum alloy casting equipment, the diameter of the first hydraulic cylinder extension rod is smaller than that of the circular groove, and the distance is reserved between the circular ring and the n-type frame, so that after the upper die holder enters the guide cylinder, the upper die holder can be guaranteed not to be fixed by the first hydraulic cylinder, under the constraint of the guide cylinder, the position of the upper die holder can be adjusted through the gap between the circular groove and the first hydraulic cylinder and the distance between the circular ring and the n-type frame, the upper die holder can be prevented from being fixed on the first hydraulic cylinder, when the upper die holder and the lower die holder are misplaced, the friction force on the guide cylinder can be increased after the upper die holder enters the guide cylinder, the position of the upper die holder can be adjusted by utilizing the constraint of the guide cylinder on the upper die holder, and the upper die holder can be moved downwards along the central axis of the guide cylinder, so that the dislocation is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the casting apparatus of the present invention as a whole;
FIG. 2 is an internal structural view of the guide cylinder of the present invention;
FIG. 3 is a block diagram of an upper die holder and a lower die holder of the present invention;
FIG. 4 is an internal structural view of the lower die holder of the present invention;
FIG. 5 is a top view of the casting apparatus of the present invention;
FIG. 6 is a cross-sectional view taken at A-A of the upper and lower die holders of FIG. 5 in accordance with the present invention;
FIG. 7 is an enlarged view of a portion of the invention at B in FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C in accordance with the present invention;
FIG. 9 is a cross-sectional view taken at A-A of the upper and lower die holders of FIG. 5 in accordance with the present invention;
FIG. 10 is an enlarged view of a portion of the invention at D in FIG. 9;
FIG. 11 is a cross-sectional view taken at A-A of the upper and lower die holders of FIG. 5 as they cool in accordance with the present invention;
Fig. 12 is an enlarged view of a portion of fig. 11 at E in accordance with the present invention.
In the drawing, 1, an upper die holder, 11, a first hydraulic cylinder, 12, a male die, 13, a first circular groove, 14, a channel, 15, a pouring groove, 16, a pouring opening, 17, a ceramic rod, 171, a square groove, 18, a first electric push rod, 19, a sealing plate, 2, a lower die holder, 21, a second hydraulic cylinder, 22, a rectangular groove, 221, a through hole, 23, a female die bin, 24, a second electric push rod, 25, a circular notch groove, 3, a guide cylinder, 31, a long groove, 32, a gas bin, a guide pipe, 34, a gas hole, 4, an n-shaped frame, 41, a circular groove, 42, a circular ring, 5, a second circular groove, 51, a gas groove, 52, a gas pipe, 53, a first gas hole, 54, a circular plate, 55, a circular frame, 56, a second gas hole, 6, a third electric push rod, 61, a thimble, 62, a dislocation groove, 63 and a workpiece.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 12, the aluminum alloy casting equipment comprises an upper die holder 1 and a lower die holder 2, wherein a first hydraulic cylinder 11 is arranged at the top of the upper die holder 1, a second hydraulic cylinder 21 is arranged at the bottom of the lower die holder 2, and a male die 12 is arranged at the bottom of the upper die holder 1;
The outer ring of the male die 12 is provided with a first return groove 13, and four sides of the first return groove 13 are provided with channels 14;
The top of the upper die holder 1 is provided with a pouring groove 15, the pouring groove 15 is hemispherical, the bottom of the pouring groove 15 is provided with a pouring opening 16, a ceramic rod 17 is arranged in the pouring opening 16, and the ceramic rod 17 is used for plugging the pouring opening 16;
a first electric push rod 18 is fixed at the top of the ceramic rod 17, and the other side of the first electric push rod 18 is arranged at the top of the upper die holder 1 through a mounting frame;
a rectangular groove 22 is formed in the lower die holder 2, a female die bin 23 is arranged in the rectangular groove 22 in a sliding manner, a die cavity is formed in the female die bin 23, and the top end face of the female die bin 23 is lower than the top end face of the lower die holder 2 in an initial state;
The female die bin 23 is opposite to the first return groove 13, and the wall thickness of the female die bin 23 is smaller than the groove width of the first return groove 13, a second electric push rod 24 is arranged at the bottom of the female die bin 23, and the other side of the second electric push rod 24 is arranged at the bottom of the rectangular groove 22;
the device comprises a workbench, a guide cylinder 3, an auxiliary mechanism, a control mechanism and a control mechanism, wherein the auxiliary mechanism comprises the guide cylinder 3, and the bottom of the guide cylinder 3 is closed and is arranged on the workbench;
The outer contours of the upper die holder 1 and the lower die holder 2 are cylindrical, and the upper die holder 1 and the lower die holder 2 are both in sliding connection with the inside of the guide cylinder 3, the lower die holder 2 slides on the bottom of the guide cylinder 3 and is attached to the bottom of the guide cylinder 3, and a piston disc is fixed at the bottom of the lower die holder 2, and the upper die holder 1 is initially positioned at the top of the guide cylinder 3;
The upper die holder 1 is provided with long grooves 31 on the outer ring surface of the guide cylinder 3, the long grooves 31 are in one-to-one correspondence with the sealing plates 19, a plurality of air bins 32 are fixed on the outer ring of the guide cylinder 3, and the long grooves 31 are positioned in the air bins 32, and a negative pressure sensor is arranged in each air bin 32;
A guide pipe 33 is fixed at the bottom of each air bin 32, the other side of the guide pipe 33 is communicated with the bottom space of the lower die holder 2, a one-way valve is arranged at one side of the guide pipe 33 communicated with the bottom space of the lower die holder 2, an air hole 34 is arranged at the bottom of the guide cylinder 3, and the one-way valve is arranged in the air hole 34.
During casting, first electric push rod 18 is controlled to shrink, first electric push rod 18 which shrinks drives ceramic rod 17 to move upwards, ceramic rod 17 which moves upwards does not block pouring opening 16 any more, first hydraulic cylinder 11 is controlled to extend, first hydraulic cylinder 11 which extends drives upper die holder 1 to gradually move downwards, upper die holder 1 which moves downwards gradually stretches into guide cylinder 3 and slides downwards along the inside of guide cylinder 3, and sealing plate 19, male die 12, ceramic rod 17 and first electric push rod 18 are driven to move downwards; the upper die holder 1 sliding downwards gradually approaches the lower die holder 2 positioned at the bottom of the guide cylinder 3, gas positioned below the upper die holder 1 is extruded in the downward moving process of the upper die holder 1, the gas passes through the inside of the pouring opening 16 after being extruded and is gradually discharged, when the upper die holder 1 is attached to the lower die holder 2, the male die 12 partially stretches into the die cavity, and the sealing plate 19 seals part of the long groove 31 positioned above the upper die holder 1;
Specifically, the first electric push rod 18 is controlled to extend, so that the ceramic rod 17 is driven to plug the pouring opening 16 again; then the second hydraulic cylinder 21 is controlled to extend, the first hydraulic cylinder 11 is controlled to shrink, the second hydraulic cylinder 21 which is extended drives the lower die holder 2 to move upwards in the guide cylinder 3, the first hydraulic cylinder 11 which is contracted drives the upper die holder 1 to move upwards, so that the upper die holder 1 and the lower die holder 2 move upwards after being attached, the channel 14 is driven to move upwards gradually along the long groove 31, the piston disc at the bottom is driven to move upwards in the process of moving the lower die holder 2, so that the piston disc moving upwards sucks gas at the bottom of the lower die holder 2, the gas bin 32 is communicated with the space at the bottom of the lower die holder 2 through the guide pipe 33, the gas bin 32 is sucked through the guide pipe 33 in the process of sucking gas, and the gas bin 32 is communicated with the space between the male die 12 and the die cavity through the long groove 31, so that the gas between the male die 12 and the die cavity can be sucked; because the channel 14 gradually moves up along the long groove 31, the sealing plate 19 always seals part of the long groove 31 above the upper die holder 1, and because the piston disc always moves up along the lower die holder 2, the channel 14 continuously pumps gas between the male die 12 and the die cavity in the process of moving up along the long groove 31, the space between the male die 12 and the die cavity can be gradually pumped to a negative pressure state along with the gradual upward movement of the upper die holder 1 and the lower die holder 2 and monitored by a negative pressure sensor in the air bin 32, the lower die holder 2 gradually seals the long groove 31 along with the gradual upward movement of the upper die holder 1 and the lower die holder 2, when the top of the lower die holder 2 moves up to the top of the long groove 31, the lower die holder 2 completely seals the long groove 31 at the moment, the upper die holder 1 and the lower die holder 2 are controlled to stop moving, and the space between the male die 12 and the die cavity and the space in the first return groove 13 and the through groove are in a negative pressure state;
More specifically, when casting is carried out, the second electric push rod 24 is controlled to extend, the extended second electric push rod 24 can push the female die bin 23 to move upwards, the upwards moved female die bin 23 can gradually extend into the first return groove 13 and is attached to the first return groove 13, at the moment, the space between the male die 12 and the die cavity is a casting die cavity, the inside of the die cavity is in a negative pressure state, the female die bin 23 upwards moved to the inside of the first return groove 13 can block the joint between the upper die holder 1 and the lower die holder 2, so that the die cavity is directly contacted with a molten liquid to be cast, then the molten aluminum alloy molten liquid is poured into the casting groove 15, the molten liquid amount in the casting groove 15 is larger than the molten liquid required for forming an aluminum alloy workpiece, then the first electric push rod 18 is controlled to drive the ceramic rod 17 to move upwards, the upwards moved ceramic rod 17 does not press the molten liquid in the casting hole 16, the molten liquid in the casting groove 15 is pressed into the die cavity by the outside atmosphere, the molten liquid can gradually fill the die cavity, and the molten liquid in the die cavity can be prevented from being remained in the die cavity after the molten liquid is poured into the casting groove 15, and the molten liquid is still kept in the die cavity is completely filled with the molten liquid in the die cavity;
Further, after the molten metal is molded to form the workpiece 63, the upper die holder 1 is controlled to move upwards, the upper die holder 1 is far away from the lower die holder 2, then the formed workpiece 63 is taken out, after the workpiece 63 is taken out, the lower die holder 2 is controlled to move downwards to restore to an initial state, a piston disc is driven to move downwards, gas below the piston disc is pushed simultaneously, and as a one-way valve is arranged on one side of the conduit 33, which is communicated with the bottom space of the lower die holder 2, and a one-way valve is arranged in the air hole 34, the extruded gas cannot enter the conduit 33, only can be discharged from the air hole 34 to the outside, and then the casting work can be repeated again;
In general, the upper die holder 1 and the lower die holder 2 are synchronously moved upwards, the piston disc at the bottom of the lower die holder 2 is driven to move upwards, negative pressure is formed at the bottom of the lower die holder 2, gas in the gas bin 32 is pumped through the guide pipe 33, the gas bin 32 is communicated with the male die 12 and a die cavity through the space between the long groove 31, the continuous movement of the matched channel 14 along the long groove 31 is realized, continuous pumping of the associated spaces such as the die cavity, the first circular groove 13 and the channel 14 is realized, meanwhile, a negative pressure sensor monitors the negative pressure state in the gas bin 32 in real time, the die cavity is ensured to be accurately pumped to a stable negative pressure environment, the hidden danger of air retention caused by die cavity sealing after die assembly in traditional casting is eliminated from the source, the air hole 34 is avoided from being formed in the cooling process of a workpiece 63, meanwhile, excessive molten liquid is poured into the hemispherical casting groove 15, the molten liquid is stably pressed into the die cavity by utilizing the external atmospheric pressure, molten liquid turbulence and splashing caused by too fast flow speed or unreasonable design of a casting system in traditional casting are avoided, and the possibility of being wrapped up by air is fundamentally reduced;
Meanwhile, the outer contours of the upper die holder 1 and the lower die holder 2 are designed to be cylindrical and are in sliding connection with the inside of the guide cylinder 3, and the inner wall of the guide cylinder 3 forms omnibearing radial constraint on the upper die holder 1 and the lower die holder 2 in the process of die assembly and synchronous movement, so that the upper die holder 1 is ensured to move downwards along the central axis of the guide cylinder 3 all the time, die holder offset and dislocation caused by the defect of a guide structure or insufficient precision of a traditional die are avoided, and the problem that the gap is generated due to dislocation so as to form burrs is fundamentally solved.
As one embodiment of the invention, the top of the upper die holder 1 is provided with two n-type frames 4;
The top of the n-type frame 4 is provided with a circular groove 41, the extension rod of the first hydraulic cylinder 11 passes through the circular groove 41 and extends into the n-type frame 4, and the diameter of the extension rod of the first hydraulic cylinder 11 is smaller than the diameter of the circular groove 41;
a circular ring 42 is fixed on one side of the extension rod of the first hydraulic cylinder 11 penetrating through the circular groove 41, and a distance is reserved between the circular ring 42 and the n-type frame 4;
In this embodiment, a spring is fixed at the bottom of the ring 42, and the other side of the spring is fixed on the surface of the upper die holder 1;
the extension rod of the first hydraulic cylinder 11 below the circular ring 42 is positioned at the inner ring of the spring;
In this embodiment, the top of the guide cylinder 3 is rounded.
When the first hydraulic cylinder 11 stretches, the upper die holder 1 is pulled to move downwards through the circular ring 42 and the n-type frame 4, and when the upper die holder 1 enters the guide cylinder 3, the upper die holder 1 can be guided due to the design of the round angle at the top of the guide cylinder 3, so that the upper die holder 1 can more easily enter the guide cylinder 3;
Specifically, after the upper die holder 1 enters the guide cylinder 3, the diameter of the extension rod of the first hydraulic cylinder 11 is smaller than the diameter of the circular groove 41, and a distance is reserved between the circular ring 42 and the n-type frame 4, so that after the upper die holder 1 enters the guide cylinder 3, the upper die holder 1 can be ensured not to be in a fixed state by the first hydraulic cylinder 11, under the constraint of the guide cylinder 3, the position of the upper die holder 1 can be adjusted through the gap between the circular groove 41 and the first hydraulic cylinder 11 and the distance between the circular ring 42 and the n-type frame 4, thereby the upper die holder 1 can be prevented from being fixed on the first hydraulic cylinder 11, if the upper die holder 1 and the lower die holder 2 are misplaced, after the upper die holder 1 enters the guide cylinder 3, the friction force to the guide cylinder 3 can be increased, and the constraint of the guide cylinder 3 on the upper die holder 1 can be adjusted, so that the upper die holder 1 can be moved downwards along the central axis of the guide cylinder 3, and the misplaced situation is avoided;
More specifically, after the upper die holder 1 is attached to the lower die holder 2, the first hydraulic cylinder 11 continues to extend and gradually drives the circular ring 42 to move downwards, the downwards moved circular ring 42 compresses the spring at the bottom, so that the spring gradually presses the upper die holder 1, when the position of the extension rod of the first hydraulic cylinder 11 below the circular ring 42 is attached to the top of the upper die holder 1, the upper die holder 1 is pressed again on the basis of the pressure applied by the spring to the upper die holder 1, so that the locking force of the upper die holder 1 and the lower die holder 2 can be improved, the situation that burrs are formed due to insufficient locking force of the upper die holder 1 and the lower die holder 2 and the situation that a solution moves out is avoided, and meanwhile, because the upper die holder 1 is gradually pressed after being attached to the lower die holder 2, the upper die holder 1 and the lower die holder 2 are prevented from bearing larger pressure when just contacting, and damage to the upper die holder 1 and the lower die holder 2 which is easy to cause.
As one embodiment of the invention, a square groove 171 is formed on the side of the ceramic rod 17 extending into the pouring gate 16.
Since the square groove 171 is formed in one side of the ceramic rod 17 extending into the pouring gate 16, when the ceramic rod 17 is controlled to move upwards, the square groove 171 gradually moves to the position above the pouring gate 16, then molten liquid enters the square groove 171 and then enters the cavity through the pouring gate 16, and the ceramic rod 17 is controlled to move upwards to different heights, so that the height of the square groove 171 moving upwards to the position above the pouring gate 16 can be adjusted, and the speed of the molten liquid entering the pouring gate 16 can be adjusted.
The outer ring of the female die bin 23 is provided with a circular notch 25, the circular notch 25 penetrates through the bottom of the female die bin 23, and the top of the circular notch 25 is spaced from the upper surface of the female die bin 23;
The outer ring of the rectangular groove 22 is positioned in the inner wall of the lower die holder 2, a second return groove 5 is formed in the outer ring of the rectangular groove, air grooves 51 which are uniformly distributed are formed in the top of the second return groove 5, and the air grooves 51 are respectively in one-to-one correspondence with the four channels 14;
an air pipe 52 is arranged at the top of each air bin 32, and the air pipe 52 is communicated with external cooling air;
The four surfaces of the second return-type groove 5 facing the rectangular groove 22 are respectively provided with uniformly arranged first air holes 53;
A through hole 221 is formed in the bottom of the rectangular groove 22, a one-way valve is installed in the through hole 221, and a return plate 54 is arranged in the second return groove 5;
The bottom of the square plate 54 is fixed with a square frame 55, and the square frame 55 is attached to the second square groove 5, the bottom of the square frame 55 is fixed with uniformly arranged springs, and the other side of the springs is fixed at the bottom of the second square groove 5;
The second air holes 56 are uniformly arranged on the circular plate 54, and the second air holes 56 are staggered with the first air holes 53 in the initial state.
When the upper die holder 1 and the lower die holder 2 after die assembly move to the top of the long groove 31, the channels 14 are respectively communicated with the corresponding air pipes 52, when the pouring of the workpiece 63 is completed and cooling air is introduced into the air pipes 52 in the cooling process, the air firstly enters the channels 14 through the air pipes 52 and then enters the first circular groove 13, after the air gradually fills the first circular groove 13, the air enters the second circular groove 5 through the plurality of air grooves 51, the air pressure gradually increases along with the gradual increase of the air in the second circular groove 5, the return plate 54 and the return frame 55 are gradually pushed to move downwards, the spring is compressed, the downward return plate 54 drives the second air holes 56 to be gradually overlapped with the first air holes 53 at the same time, so the air in the second circular groove 5 is simultaneously sprayed out through the plurality of second air holes 56 and the first air holes 53, the sprayed gas acts on the surface of the female die bin 23, so that the female die bin 23 and a workpiece 63 in the female die bin 23 can be cooled, the outer ring of the female die bin 23 is provided with a circular notch 25, so that the gas acting on the female die bin 23 flows along the circular notch 25 and gradually flows into the rectangular groove 22, the gas in the rectangular groove 22 flows to the lower part of the upper die holder 1 through the check valve in the through hole 221 because the check valve is arranged in the through hole 221, and the gas in the rectangular groove 22 is discharged through the check valve in the air hole 34 in the bottom of the guide cylinder 3 because the check valve is arranged in the air hole 34 in the bottom of the lower die holder 2 when the gas at the bottom of the lower die holder 2 gradually increases;
the air pressure pushes the return plate 54 to move downwards, and the second air holes 56 are overlapped with the first air holes 53 at the same time, so that air in the second return groove 5 can be sprayed out through the second air holes 56 and the first air holes 53 at the same time and acts on different positions of the outer surface of the female die bin 23, the female die bin 23 can be uniformly cooled, and the temperature difference of different positions of the workpiece 63 is reduced;
Since the check valves are installed in the air tanks 51, when the air is sucked by the air tanks 32, the check valves in the air tanks 51 close the air tanks 51, and thus the air in the second return tank 5 is not sucked.
The bottom of the female die bin 23 is provided with third electric push rods 6 which are uniformly arranged, and the third electric push rods 6 are positioned at two sides of the second electric push rod 24;
A thimble 61 is fixed on the extension rod of the third electric push rod 6, and the thimble 61 extends into the concave die bin 23 and is level with the bottom surface of the concave die bin 23;
The lower part of the second return groove 5 is provided with dislocation grooves 62 on four surfaces of the rectangular groove 22.
When the workpiece 63 in the cavity is molded, the second electric push rod 24 is controlled to shrink, the third electric push rod 6 is controlled to stretch, the second electric push rod 24 is contracted to drive the female die bin 23 to move downwards, the ejector pin 61 is driven to move upwards in the process of stretching the third electric push rod 6, so that the workpiece 63 is pushed out of the female die seat and limited on the male die 12, the workpiece 63 is gradually moved out of the cavity along with the gradual downward movement of the female die bin 23, and after the workpiece 63 is completely moved out of the female die bin 23, gas sprayed out through the first air hole 53 and the second air hole 56 directly acts on the surface of the workpiece 63, so that the self cooling speed of the workpiece 63 is accelerated, and the integral pouring efficiency is improved;
More specifically, when the top of the female die compartment 23 moves down to below the dislocation groove 62, the gas acting on the workpiece 63 enters into a part of the dislocation groove 62 located above the female die compartment 23, then flows down along the dislocation groove 62 and flows down to below the female die compartment 23, and then flows out through the check valve in the through hole 221, in the process, not only the workpiece 63 can be directly cooled, but also the process affecting the flow of the gas can be avoided.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
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| CN202511564219.9A CN121017509B (en) | 2025-10-30 | 2025-10-30 | An aluminum alloy casting equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202511564219.9A CN121017509B (en) | 2025-10-30 | 2025-10-30 | An aluminum alloy casting equipment |
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| CN121017509A true CN121017509A (en) | 2025-11-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855468A (en) * | 2017-11-10 | 2018-03-30 | 江门耀兴精铸制品有限公司 | A kind of Al-alloy metal casting mould |
| CN213350699U (en) * | 2020-09-17 | 2021-06-04 | 昆山绥凯精密模具有限公司 | Casting mould |
| CN216263400U (en) * | 2021-08-09 | 2022-04-12 | 龙口市九方利工贸有限公司 | Die-casting die capable of conveniently taking materials without generating air holes |
| CN116460267A (en) * | 2023-04-23 | 2023-07-21 | 广州励合机械模具有限公司 | Aluminum alloy pressurizing casting system and process |
| CN219618372U (en) * | 2023-03-07 | 2023-09-01 | 昆山贵研精密模具有限公司 | Injection mold with vacuumizing function |
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- 2025-10-30 CN CN202511564219.9A patent/CN121017509B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107855468A (en) * | 2017-11-10 | 2018-03-30 | 江门耀兴精铸制品有限公司 | A kind of Al-alloy metal casting mould |
| CN213350699U (en) * | 2020-09-17 | 2021-06-04 | 昆山绥凯精密模具有限公司 | Casting mould |
| CN216263400U (en) * | 2021-08-09 | 2022-04-12 | 龙口市九方利工贸有限公司 | Die-casting die capable of conveniently taking materials without generating air holes |
| CN219618372U (en) * | 2023-03-07 | 2023-09-01 | 昆山贵研精密模具有限公司 | Injection mold with vacuumizing function |
| CN116460267A (en) * | 2023-04-23 | 2023-07-21 | 广州励合机械模具有限公司 | Aluminum alloy pressurizing casting system and process |
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| CN121017509B (en) | 2026-02-06 |
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