CN117961028A - Die casting molding method of aluminum alloy shell die casting - Google Patents
Die casting molding method of aluminum alloy shell die casting Download PDFInfo
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- CN117961028A CN117961028A CN202410007967.6A CN202410007967A CN117961028A CN 117961028 A CN117961028 A CN 117961028A CN 202410007967 A CN202410007967 A CN 202410007967A CN 117961028 A CN117961028 A CN 117961028A
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- 238000004512 die casting Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 22
- 238000000465 moulding Methods 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 20
- 239000011261 inert gas Substances 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000001816 cooling Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a die casting molding method of an aluminum alloy shell die casting. The invention comprises a mounting frame, wherein a transmission column driven by a power mechanism to lift is connected to the inner wall of the mounting frame in an up-down limiting sliding manner, a fixed disc is fixedly connected to the lower surface of the transmission column, four limiting rods are fixedly connected to the lower surface of the fixed disc, which is close to the edge, the four limiting rods are movably connected with the same disc, an upper die is fixedly connected to the lower surface of the disc, a liquid supply mechanism is fixedly connected to the inner bottom wall of the mounting frame, a laminate plate fixed on the inner wall of the mounting frame is arranged above the liquid supply mechanism, and a die matched with the upper die is fixedly connected to the upper surface of the laminate plate. Through the cooperation of torsional spring and dwang that sets up between disc and the fixed disk opposite face, realized the effect of going up mould and die casting's quick separation, also realized the movable disk and slided from top to bottom simultaneously and carry out the effect that advances liquid and store to the release agent.
Description
Technical Field
The invention relates to the technical field of aluminum alloy die casting, in particular to a die casting molding method of an aluminum alloy shell die casting.
Background
The method comprises the steps of heating aluminum alloy to melt aluminum metal into liquid aluminum during die casting of an alloy shell, pouring the liquid aluminum into a die of a die casting machine, and performing die casting cooling molding, wherein the operation process for performing die casting cooling molding on the aluminum alloy and the problem solving step are the die casting molding method.
In a conventional aluminum alloy die casting method, an upper die and a lower die or a left die and a right die are generally used, a metal solution is firstly poured into the dies, then the die casting is subjected to die closing and die casting, and finally the die casting is subjected to cooling, demolding and die casting taking out. For example, the high-density die-casting method of the aluminum alloy die-casting piece of CN113399641A, the die-casting method of the aluminum alloy shell die-casting piece of CN101905305B and the like have longer waiting time in the processes of liquid feeding, die-casting and demolding, so the application provides the die-casting method of the aluminum alloy shell die-casting piece.
Disclosure of Invention
The invention aims to provide a die-casting forming method of an aluminum alloy shell die-casting, which has the advantages of a series of consecutive operations of feeding liquid to the die-casting, die-casting and demolding, and better efficiency, and solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
S1, pressing down and inflating: the transmission column is at the highest position in the initial state, the transmission column drives the transmission rod to move downwards under the drive of the driven mechanism, the other end of the transmission rod is fixedly connected with an air plug, meanwhile, inert gas in the air cylinder is extruded downwards by the air plug, enters the crucible furnace through the one-way air guide valve A and the air inlet pipe, temporarily stored metal solution is arranged in the crucible furnace, the inert gas is arranged on the surface of the metal solution, the pressure of the liquid level is increased, and the metal solution enters the mold from bottom to top through the pouring channel;
s2, rotary die casting: the transmission column is driven by the power mechanism, the transmission column drives the fixed disc, the fixed disc drives the sliding rod, the sliding rod drives the disc and drives the upper die to be die-cast downwards, the torsion spring is in a contracted state under the pressure action when the upper die is die-cast and matched with the die, and the rotating rod arranged between the opposite surfaces of the fixed disc and the disc is in an inclined state, and the rotating rod drives the disc to rotate clockwise;
S3, rotation separation: after the die casting action is finished, the transmission column is driven by the power mechanism to separate from the die upwards, the torsion spring is not rebounded under the action of downward pressure, the fixed disc and the disc start to be far away, and meanwhile, the rotating rod drives the disc to rotate anticlockwise, so that the adhesion between the upper die and the die casting is avoided;
S4, liquid inlet demoulding: when the die casting device moves downwards, the release agent liquid passes through the liquid inlet pipe and enters the cavity B through the one-way valve C, the sliding rod drives the movable disc to slide upwards on the inner wall of the cavity B when the upper die and the die are in die casting, the liquid on the upper surface of the movable disc flows downwards through the one-way valve A, the die is far away from the upper die casting device after die casting is finished, the sliding rod drives the movable disc to slide downwards on the inner wall of the cavity B, the release agent liquid on the lower surface of the movable disc enters the liquid guide pipe through the one-way valve B, the release agent liquid passes through the disc and enters the cavity A of the upper die, the liquid is ejected out through the inclined hole at the tail end of the cavity A, and the orifice is opposite to the die casting processed below, so that the die casting is cooled and released rapidly.
Preferably, the automatic lifting device comprises a mounting frame, wherein the upper limit sliding connection of the inner wall of the mounting frame is provided with a transmission column driven by a power mechanism to lift, the lower surface of the transmission column is fixedly connected with a fixed disc, the lower surface of the fixed disc, which is close to the edge, is fixedly connected with four limit rods, the limit rods are movably connected with the same disc, the lower surface of the disc is fixedly connected with an upper die, the inner bottom wall of the mounting frame is fixedly connected with a liquid supply mechanism, the upper part of the liquid supply mechanism is provided with a laminate fixed on the inner wall of the mounting frame, and the upper surface of the laminate is fixedly connected with a die matched with the upper die.
Preferably, the liquid supply mechanism comprises a crucible furnace for temporarily storing the metal solution, inert gas is filled in the upper space of the crucible furnace, the upper surface of the crucible furnace is penetrated and fixedly connected with a pouring channel for guiding the metal solution from bottom to top, the top of the pouring channel extends upwards to the inner bottom wall of the die, and the crucible furnace is provided with a gas supply mechanism;
The air supply mechanism comprises an air cylinder fixed on the inner bottom wall of the mounting frame, an air plug is arranged on the inner wall of the air cylinder in an up-down limiting sliding manner, the same air inlet pipe is communicated between the air cylinder and the crucible furnace, a one-way air guide valve A is fixedly connected to the inner wall of the air inlet pipe, an air supply pipe communicated with an external inert gas source is penetrated and fixedly connected to the arc-shaped outline of the air cylinder, a one-way air guide valve B is fixedly connected to the inner wall of the air supply pipe, and a transmission rod capable of vertically limiting and sliding is fixedly connected to the upper surface of the air plug.
Preferably, a cavity A is formed in the upper die, the bottom of the cavity A extends downwards to the inner wall of the upper die, and the tail end of the cavity A is inclined and points to the die casting to be demolded.
Preferably, the upper surface of the disc is penetrated and fixedly connected with two liquid guide pipes, the bottoms of the two liquid guide pipes penetrate through the upper die and are communicated with the top of the cavity A, and a cavity B for storing release agent is formed in the fixing disc.
Preferably, the upper and lower limit sliding connection of inner wall of cavity B has the movable disk, the lower fixed surface of movable disk is connected with the slide bar, the bottom of slide bar and the last fixed surface of disc are connected, the upper surface of movable disk is run through and fixedly connected with check valve A, the bottom of fixed disk is run through and fixedly connected with check valve B, the top of fixed disk is run through and fixedly connected with check valve C, just to check valve C's upper surface fixedly connected with and outside release agent intercommunication's feed liquor pipe on the fixed disk, the cover has the torsional spring on the arc profile of slide bar, the both ends of torsional spring and the relative face fixed connection of disc and fixed disk.
Preferably, the part of the limiting rod, which is close to the bottom, is a vertical section matched with the arc-shaped outline of the disc, the middle and upper parts of the limiting rod are inclined sections for limiting the disc to move in the vertical direction, a hemispherical groove A is formed in the lower surface of the fixed disc, a universal ball A is rotationally connected with the groove, a rotating rod is fixedly connected with the bottom of the universal ball A, a universal ball B is fixedly connected with the bottom of the rotating rod, and a hemispherical groove B matched with the universal ball B is formed in the upper surface of the disc.
Preferably, the number of the rotating rods is two, the two rotating rods are symmetrically arranged on the upper surface of the disc, and the rotating rods are in an inclined state when the transmission column is at the highest position.
Compared with the prior art, the invention has the following beneficial effects:
1. According to the invention, through the cooperation of the liquid supply mechanism and the air supply mechanism which are arranged below the die, inert gas can conveniently enter the crucible furnace, so that the metal solution in the crucible furnace can enter the die from bottom to top, and the effect of automatic liquid feeding during die casting can be achieved.
2. According to the invention, the cavity for the release agent to fall down is arranged in the upper die, and the tail end of the cavity is inclined and points to the die casting downwards, so that the effect of jetting the die casting and rapidly releasing the die casting can be achieved.
3. According to the invention, through the movable disc arranged in the cavity A, and the movable disc slides up and down on the inner wall of the cavity A in the die casting process, the falling and storage of the release agent liquid are realized, and the effects of die casting front liquid and falling injection after die casting are achieved.
4. According to the invention, through the cooperation of the torsion springs and the rotating rods arranged between the opposite surfaces of the disc and the fixed disc, the effect of quickly separating the upper die from the die casting is realized, and meanwhile, the effect of feeding and storing the release agent by the up-and-down sliding of the movable disc is also realized.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a schematic diagram of the liquid supply mechanism and the air supply mechanism according to the present invention;
FIG. 3 is a schematic cross-sectional view of the portion of the upper mold of the present invention;
FIG. 4 is a schematic cross-sectional view of a portion of a holding pan of the present invention;
FIG. 5 is a perspective view of the structure of the torsion spring of the present invention;
FIG. 6 is a perspective view showing the structure of the universal ball A according to the present invention;
FIG. 7 is a perspective view showing the structure of the universal ball B according to the present invention;
FIG. 8 is a schematic view of the interior of a crucible furnace according to the present invention;
FIG. 9 is a schematic perspective view of the present invention;
fig. 10 is a flow chart of a die casting method of the aluminum alloy shell die casting according to the invention.
In the figure: 1. a drive column; 2. a mounting frame; 3. a fixed plate; 4. a limit rod; 5. a catheter; 6. a disc; 7. an upper die; 8. a mold; 9. a laminate; 10. pouring gate; 11. a liquid supply mechanism; 12. a crucible furnace; 13. a liquid inlet pipe; 14. a cavity B; 15. a slide bar; 16. a torsion spring; 17. a rotating lever; 18. a gas supply mechanism; 19. a one-way valve A; 20. a one-way valve B; 21. an air inlet pipe; 22. a transmission rod; 23. an air plug; 24. an air cylinder; 25. a cavity A; 26. a movable plate; 27. a one-way air guide valve A; 28. a single-way air guide valve B; 29. an air supply pipe; 30. hemispherical grooves B; 31. a one-way valve C; 32. hemispherical recess a; 33. a universal ball A; 34. and a universal ball B.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
Referring to fig. 1 to 10, the present invention provides a technical solution: the die-casting molding method of the die-casting piece of the aluminum alloy shell comprises a mounting frame 2 and is characterized in that: the upper and lower limit sliding connection of the inner wall of the mounting frame 2 is provided with a transmission column 1 driven by a power mechanism to lift, the lower surface of the transmission column 1 is fixedly connected with a fixed disc 3, the lower surface of the fixed disc 3 close to the edge is fixedly connected with four limit rods 4, the four limit rods 4 are movably connected with the same disc 6, the lower surface of the disc 6 is fixedly connected with an upper die 7,
The inner bottom wall of the mounting frame 2 is fixedly connected with a liquid supply mechanism 11, a laminate 9 fixed on the inner wall of the mounting frame 2 is arranged above the liquid supply mechanism 11, and the upper surface of the laminate 9 is fixedly connected with a die 8 matched with the upper die 7.
When the die casting die is used, firstly, the transmission column 1 arranged on the inner wall of the mounting frame 2 and the transmission column 1 are driven by the power mechanism to perform up-down limiting sliding, in an initial state, the transmission column 1 is located at the highest position, the fixed disc 3 is driven when the transmission column 1 moves downwards, four limiting rods 4 are uniformly arranged on the lower surface of the fixed disc 3 close to the edge, the four limiting rods 4 are in contact with the same disc 6, when the disc 6 moves downwards, the four limiting rods 4 are in limiting contact with the disc 6, meanwhile, an upper die 7 for die casting a die casting is arranged on the lower surface of the disc 6, a die 8 for placing a metal solution is arranged under the upper die 7, a laminate 9 is arranged on the lower surface of the die 8, the operation that the power mechanism drives the die casting device to perform downward die casting is realized, and meanwhile, a liquid supply mechanism 11 for casting the metal solution on the die 8 is arranged on the lower surface of the laminate 9.
Embodiment two:
on the basis of the first embodiment, further:
The liquid supply mechanism 11 comprises a crucible furnace 12 for temporarily storing the metal solution, inert gas is filled in the upper space of the crucible furnace 12, a runner 10 for guiding the metal solution from bottom to top is penetrated and fixedly connected to the upper surface of the crucible furnace 12, the top of the runner 10 extends upwards to the inner bottom wall of the die 8, and the crucible furnace 12 is provided with a gas supply mechanism 18;
The air supply mechanism 18 comprises an air cylinder 24 fixed on the inner bottom wall of the mounting frame 2, an air plug 23 is connected to the inner wall of the air cylinder 24 in an up-down limiting sliding manner, the same air inlet pipe 21 is communicated between the air cylinder 24 and the crucible furnace 12, a one-way air guide valve A27 is fixedly connected to the inner wall of the air inlet pipe 21, an air supply pipe 29 communicated with an external inert gas source is penetrated and fixedly connected to the arc-shaped outline of the air cylinder 24, a one-way air guide valve B28 is fixedly connected to the inner wall of the air supply pipe 29, and a transmission rod 22 driven to perform up-down limiting sliding is fixedly connected to the upper surface of the air plug 23.
When the device is used, firstly, through the crucible furnace 12 arranged on the inner bottom wall of the mounting frame 2, the temporarily stored metal solution is arranged in the crucible furnace 12, when the upper space in the crucible furnace 12 is filled with inert gas, the inert gas can increase the pressure on the liquid surface, and the pouring gate 10 connected with the crucible furnace 12 is penetrated into the metal solution, when the pressure is applied, the metal solution can be guided out of the pouring gate 10 from bottom to top to the inner bottom wall of the die 8, when the upper die casting mechanism is used for die casting downwards, the metal solution is subjected to die casting, and meanwhile, the crucible furnace 12 is provided with the air supply mechanism 18 connected with the inert gas;
In the initial state, the air lock 23 on the air supply mechanism 18 is located at the highest position of the inner wall of the air cylinder 24, the air cylinder 24 is fixedly arranged on the inner bottom wall of the mounting frame 2, meanwhile, the air lock 23 slides up and down in a limiting manner on the inner wall of the air cylinder 24, inert gas is introduced into the air cylinder 24, the air cylinder 24 is communicated with the crucible furnace 12 through the air inlet pipe 21, a one-way air guide valve A27 is arranged at one end of the air inlet pipe 21, when the air lock 23 slides down along the inner wall of the air cylinder 24, the inert gas is subjected to pressure, passes through the one-way air guide valve A27 and passes through the air inlet pipe 21 to enter the crucible furnace 12, meanwhile, an air supply pipe 29 communicated with external inert gas is arranged on the air cylinder 24, a one-way air guide valve B28 is arranged on the air supply pipe 29, when the air lock 23 moves up along the inner wall of the air cylinder 24, the external inert gas enters the air cylinder 24 through the one-way air guide valve B28, meanwhile, a transmission rod 22 is arranged on the upper surface of the air lock 23, and the other end of the transmission rod 22 is fixedly connected to the transmission column 1, so that the purpose of driving the air supply mechanism 18 to perform liquid intake and guide is realized.
Embodiment III:
on the basis of the second embodiment, further:
The cavity A25 is formed in the upper die 7, the bottom of the cavity A25 extends downwards to the inner wall of the upper die 7, and the tail end of the cavity A25 is inclined and points to a die casting to be demolded.
When the die casting machine is used, firstly, the cavity A25 arranged in the upper die 7 and the bottom of the cavity A25 downwards extend to the inner wall of the bottom of the upper die 7, and meanwhile, the outlet at the tail end of the lower part of the cavity A25 is inclined and points to the die casting to be demoulded downwards, when the liquid of the demoulding agent falls down through the cavity A25, the liquid is sprayed on the die casting to be demoulded, and the effect of rapidly cooling and demoulding the die casting through the cavity A25 arranged on the die casting mechanism is realized.
Embodiment four:
on the basis of the third embodiment, further:
The upper surface of the disc 6 is penetrated and fixedly connected with two liquid guide pipes 5, the bottoms of the two liquid guide pipes 5 penetrate through the upper die 7 and are communicated with the top of the cavity A25, and a cavity B14 for storing release agents is formed in the fixed disc 3.
In use, firstly through the two liquid guide pipes 5 arranged on the disc 6, and the liquid guide pipes 5 penetrate through the upper die 7 and are communicated with the top of the cavity A25, when the release agent liquid falls down through the liquid guide pipes 5, the liquid passes through the upper die 7 and is sprayed onto the die casting through the cavity A25, and meanwhile, the cavity B14 for guiding and storing the liquid is arranged inside the fixed disc 3.
Fifth embodiment:
On the basis of the fourth embodiment, further:
The inner wall of the cavity B14 is connected with a movable disc 26 in a vertically limiting sliding manner, the lower surface of the movable disc 26 is fixedly connected with a sliding rod 15, the bottom of the sliding rod 15 is fixedly connected with the upper surface of the disc 6, the upper surface of the movable disc 26 is penetrated and fixedly connected with a one-way valve A19, the bottom of the fixed disc 3 is penetrated and fixedly connected with a one-way valve B20, the top of the fixed disc 3 is penetrated and fixedly connected with a one-way valve C31, the upper surface of the fixed disc 3 opposite to the one-way valve C31 is fixedly connected with a liquid inlet pipe 13 communicated with an external release agent, a torsion spring 16 is sleeved on the arc-shaped outline of the sliding rod 15, and two ends of the torsion spring 16 are fixedly connected with the opposite surfaces of the disc 6 and the fixed disc 3.
When the die-casting device is used, firstly, through the movable disc 26 arranged on the inner wall of the cavity B14, and the movable disc 26 is in up-down limiting sliding on the inner wall of the cavity B14, meanwhile, the sliding rod 15 is arranged on the lower surface of the movable disc 26, the other end of the sliding rod 15 is fixedly connected with the disc 6, the check valve A19 is arranged on the upper surface of the movable disc 26, the check valve B20 is arranged at the bottom of the fixed disc 3, the check valve C31 is arranged at the bottom of the fixed disc 3, the liquid inlet pipe 13 which is in liquid communication with external release agent is arranged on the upper surface of the fixed disc 3, when the movable disc 26 is driven by the sliding rod 15, the movable disc 26 moves upwards on the inner wall of the cavity B14, release agent liquid enters the lower surface of the movable disc 26 from the upper surface of the movable disc 26 through the check valve A19, when the movable disc 26 moves downwards on the inner wall of the cavity B14, the release agent liquid on the lower surface of the movable disc 26 enters the guide tube 5 through the check valve B20, the torsion spring 16 arranged on the arc profile of the sliding rod 15, the two ends of the torsion spring 16 and the disc 6 are in contact with the fixed disc 6, the compression-casting mechanism drives the release agent to move upwards in the compression spring mechanism to the cavity 15, the compression spring mechanism moves upwards when the compression spring mechanism moves upwards, and the compression spring mechanism returns upward, and the compression spring mechanism is driven by the compression spring mechanism 16, and the compression spring mechanism is in contact with the compression mechanism and the compression spring mechanism is in the compression mechanism and moves upward compression mechanism 15.
Example six:
on the basis of the fifth embodiment, further:
The part of the limiting rod 4, which is close to the bottom, is a vertical section matched with the arc-shaped outline of the disc 6, the middle-upper part of the limiting rod 4 is an inclined section for limiting the disc 6 to move in the vertical direction, a hemispherical groove A32 is formed in the lower surface of the fixed disc 3, a universal ball A33 is rotationally connected with the groove, a rotating rod 17 is fixedly connected to the bottom of the universal ball A33, a universal ball B34 is fixedly connected to the bottom of the rotating rod 17, and a hemispherical groove B30 matched with the universal ball B34 is formed in the upper surface of the disc 6.
When the die casting mechanism is used, firstly, through the four limiting rods 4 arranged on the lower surface of the fixed disc 3, the part of the upper bottom of the limiting rods 4 is in an arc-shaped outline-matched vertical section of the disc 6, the middle and upper parts are inclined sections for limiting the vertical movement of the disc 6, when the disc 6 moves downwards, the four limiting rods 4 limit the disc 6, the hemispherical grooves are formed in the lower surface of the fixed disc 3, universal balls A33 are arranged in the grooves, rotating rods 17 are arranged on the universal balls A33, universal balls B34 are also arranged at the other ends of the rotating rods 17, hemispherical grooves B30 are also arranged on the upper surface of the disc 6, the rotating effect of the die casting mechanism on the disc 6 is achieved, and the rotating rods 17 are quickly separated from a die casting after being subjected to die casting, so that adhesion with the die casting is avoided.
Embodiment seven:
based on the sixth embodiment, further:
the number of the rotating rods 17 is two, the two rotating rods 17 are symmetrically arranged on the upper surface of the disc 6, and the rotating rods 17 are in an inclined state when the transmission column 1 is at the highest position.
When the die casting device is used, two symmetrical rotating rods 17 are arranged on the upper surface of the disc 6, and the rotating rods 17 are in an inclined state when the transmission column 1 is at the highest position, so that the rotating rods 17 rotate clockwise every time when the die casting mechanism moves downwards, and the die casting and separating efficiency is improved.
The standard components used in the present embodiment may be purchased directly from the market, and the nonstandard structural components according to the descriptions of the specification and the drawings may also be processed directly and unambiguously according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that the specific description will not be made here.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A die casting molding method of an aluminum alloy shell die casting is characterized by comprising the following steps of: the method comprises the following steps:
S1, pressing down and inflating: under the drive of a power mechanism, the transmission column (1) is at the highest position, the transmission column (1) drives the transmission rod (22) to move downwards, the other end of the transmission rod (22) is fixedly connected with an air plug (23), meanwhile, inert gas in the air cylinder (24) is extruded downwards by the air plug (23), enters the crucible furnace (12) through the one-way air guide valve A (27) and passes through the air inlet pipe (21), a temporarily stored metal solution is arranged in the crucible furnace (12), the inert gas is arranged on the surface of the metal solution, the pressure of the liquid level is increased, and the metal solution enters the mold (8) from bottom to top through the pouring gate (10);
S2, rotary die casting: the transmission column (1) is driven by the power mechanism, the transmission column (1) drives the fixed disc (3), the fixed disc (3) drives the sliding rod (15), the sliding rod (15) drives the disc (6) and drives the upper die (7) to be die-cast downwards, when the upper die (7) and the die (8) are die-cast and die-cast, the torsion spring (16) is in a contracted state under the pressure action, the rotating rod (17) arranged between the opposite surfaces of the fixed disc (3) and the disc (6) is in an inclined state, and the rotating rod (17) drives the disc (6) to rotate clockwise;
S3, rotation separation: after the die casting action is finished, the transmission column (1) is driven by the power mechanism, the transmission column (1) is separated from the die (8) upwards, the torsion spring (16) is not rebounded under the action of downward pressure, the fixed disc (3) and the disc (6) are kept away, and meanwhile, the rotating rod (17) drives the disc (6) to rotate anticlockwise, so that the adhesion between the upper die (7) and the die casting is avoided;
s4, feeding liquid and demolding.
2. The die-casting molding method of the die-casting of the aluminum alloy shell comprises a mounting frame (2), and is characterized in that: s4, the concrete steps of liquid inlet demoulding are as follows: when the die casting device moves downwards, release agent liquid passes through the liquid inlet pipe (13) and enters the cavity B (14) through the one-way valve C (31), when the upper die (7) and the die (8) are clamped and die-cast, the sliding rod (15) drives the movable disc (26) to slide upwards on the inner wall of the cavity B (14), liquid on the upper surface of the movable disc (26) flows downwards through the one-way valve A (19), after die casting is finished, the die (8) is far away from the upper die casting device, the sliding rod (15) drives the movable disc (26) to slide downwards on the inner wall of the cavity B (14), release agent liquid on the lower surface of the movable disc (26) enters the liquid guide pipe (5) through the one-way valve B (20), the release agent liquid passes through the disc (6) and enters the cavity A (25) of the upper die (7), the liquid is ejected from the inclined hole at the tail end of the cavity A (25) and faces to the lower die casting, and the die casting is cooled rapidly after die casting is processed.
3. The die casting method of the aluminum alloy shell die casting according to claim 2, wherein: the upper and lower limit sliding connection of the inner wall of the mounting frame (2) is provided with a transmission column (1) driven by a power mechanism to lift, the lower surface of the transmission column (1) is fixedly connected with a fixed disc (3), the lower surface of the fixed disc (3) close to the edge is fixedly connected with four limit rods (4), the four limit rods (4) are movably connected with the same disc (6), the lower surface of the disc (6) is fixedly connected with an upper die (7),
The device is characterized in that a liquid supply mechanism (11) is fixedly connected to the inner bottom wall of the mounting frame (2), a layer plate (9) fixed on the inner wall of the mounting frame (2) is arranged above the liquid supply mechanism (11), and a die (8) matched with the upper die (7) is fixedly connected to the upper surface of the layer plate (9);
The liquid supply mechanism (11) comprises a crucible furnace (12) for temporarily storing the metal solution, inert gas is filled in the upper space of the crucible furnace (12), a pouring channel (10) for guiding the metal solution from bottom to top is penetrated through the upper surface of the crucible furnace (12) and fixedly connected with the upper surface of the crucible furnace, the top of the pouring channel (10) extends upwards to the inner bottom wall of the die (8), and the crucible furnace (12) is provided with a gas supply mechanism (18);
The air supply mechanism (18) comprises an air cylinder (24) fixed on the inner bottom wall of the mounting frame (2), an air plug (23) is connected to the inner wall of the air cylinder (24) in an up-down limiting sliding manner, the same air inlet pipe (21) is communicated between the air cylinder (24) and the crucible furnace (12), a one-way air guide valve A (27) is fixedly connected to the inner wall of the air inlet pipe (21), an air supply pipe (29) communicated with an external inert gas source is penetrated and fixedly connected to the arc-shaped outline of the air cylinder (24), a one-way air guide valve B (28) is fixedly connected to the inner wall of the air supply pipe (29), and a transmission rod (22) driven to perform up-down limiting sliding is fixedly connected to the upper surface of the air plug (23);
A cavity A (25) is formed in the upper die (7), the bottom of the cavity A (25) extends downwards to the inner wall of the upper die (7), and the tail end of the cavity A (25) is inclined and points to a die casting to be demolded;
The upper surface of the disc (6) is penetrated and fixedly connected with two liquid guide pipes (5), the bottoms of the two liquid guide pipes (5) penetrate through the upper die (7) and are communicated with the top of the cavity A (25), and a cavity B (14) for storing release agents is formed in the fixed disc (3);
The utility model discloses a liquid injection device, including cavity B (14), fixed disk (3) and a liquid inlet pipe (13) that is connected with outside release agent, spacing sliding connection has movable disk (26) about the inner wall of cavity B (14), the lower fixed surface of movable disk (26) is connected with slide bar (15), the bottom of slide bar (15) is connected with the upper surface of disc (6) fixedly, the upper surface of movable disk (26) is run through and fixedly connected with check valve A (19), the bottom of fixed disk (3) is run through and fixedly connected with check valve B (20), the top of fixed disk (3) is run through and fixedly connected with check valve C (31), just last upper surface fixedly connected with of check valve C (31) is connected with liquid inlet pipe (13) with outside release agent intercommunication.
4. A die casting method for die casting an aluminum alloy housing according to claim 3, wherein: the arc-shaped outline of the sliding rod (15) is sleeved with a torsion spring (16), and two ends of the torsion spring (16) are fixedly connected with the opposite surfaces of the disc (6) and the fixed disc (3).
5. The die casting method of the aluminum alloy shell die casting according to claim 4, wherein: the part, close to the bottom, of the limiting rod (4) is a vertical section matched with the arc-shaped outline of the disc (6), and the middle upper part of the limiting rod (4) is an inclined section for limiting the disc (6) to move in the vertical direction.
6. The die casting method of the aluminum alloy shell die casting according to claim 5, wherein: the lower surface of fixed disk (3) has seted up hemisphere recess A (32) and this recess internal rotation is connected with universal ball A (33), the bottom fixedly connected with dwang (17) of universal ball A (33).
7. The die casting method of the aluminum alloy shell die casting according to claim 6, wherein: the bottom of dwang (17) fixedly connected with universal ball B (34), hemispherical recess B (30) with universal ball B (34) looks adaptation are seted up to the upper surface of disc (6).
8. The die casting method of the aluminum alloy shell die casting according to claim 7, wherein: the number of the rotating rods (17) is two, the two rotating rods (17) are symmetrically arranged on the upper surface of the disc (6), and the rotating rods (17) are in an inclined state when the transmission column (1) is at the highest position.
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| CN202410007967.6A CN117961028A (en) | 2024-01-03 | 2024-01-03 | Die casting molding method of aluminum alloy shell die casting |
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