CN117259713B - Semi-solid forming device for copper alloy pipe fitting - Google Patents
Semi-solid forming device for copper alloy pipe fitting Download PDFInfo
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- CN117259713B CN117259713B CN202311568160.1A CN202311568160A CN117259713B CN 117259713 B CN117259713 B CN 117259713B CN 202311568160 A CN202311568160 A CN 202311568160A CN 117259713 B CN117259713 B CN 117259713B
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- copper alloy
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- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 48
- 238000010099 solid forming Methods 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 100
- 239000007787 solid Substances 0.000 claims abstract description 76
- 238000003756 stirring Methods 0.000 claims abstract description 65
- 238000005266 casting Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000002955 isolation Methods 0.000 claims description 21
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 238000003908 quality control method Methods 0.000 abstract description 3
- 238000005058 metal casting Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 casting Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/12—Making non-ferrous alloys by processing in a semi-solid state, e.g. holding the alloy in the solid-liquid phase
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a semi-solid forming device of a copper alloy pipe fitting, which particularly relates to the technical field of metal casting, and comprises a frame, a casting die arranged at the bottom of the frame, a semi-solid slurry barrel, a lifting barrel, a slurry stirring assembly and a power assembly, wherein the bottom of the semi-solid slurry barrel is communicated with a pouring gate in the casting die, the lifting barrel is arranged in the semi-solid slurry barrel in a sliding penetrating manner, the slurry stirring assembly is arranged in the lifting barrel in a rotating manner, the power assembly is connected with the slurry stirring assembly, a feed inlet is arranged at the side part of the semi-solid slurry barrel, a discharge outlet is arranged at the bottom of the semi-solid slurry barrel and is communicated with the casting die, and a communication port which is detachably communicated with the feed inlet is arranged at the side part of the lifting barrel. The invention provides a semi-solid forming device for copper alloy pipe fittings, which can make the generation and injection of semi-solid slurry more convenient and faster by the reciprocating motion of a lifting cylinder in a semi-solid slurry cylinder, and make the inspection and quality control of the semi-solid slurry more convenient, thereby improving the semi-solid forming effect.
Description
Technical Field
The invention belongs to the technical field of metal casting, and particularly relates to a semi-solid forming device for a copper alloy pipe fitting.
Background
Conventional metal forming is largely divided into two types, one type of liquid forming of metal, such as casting, liquid forging, and the other type of solid forming of metal, such as rolling, drawing, stamping, and the like. The new metal forming method, i.e. semi-solid processing forming technology, is produced in the 70 th century, metal is first melted, then in the solidification process of the molten metal, the metal is subjected to intense stirring action by a stirring device, dendritic primary solid phase is fully crushed, semi-solid slurry, i.e. rheological slurry, in which a certain spherical primary solid phase is uniformly suspended in liquid metal mother liquor is obtained, and then the rheological slurry is injected into a metal mold by an injection device, and the method for directly forming by utilizing the rheological slurry is called semi-solid metal rheoforming.
The invention patent application with the publication number of CN114406231A discloses a magnesium aluminum alloy particle semi-solid forming device and a forming method thereof, the magnesium aluminum alloy particle semi-solid forming device comprises a heating component and an injection component, the injection component is arranged below the heating component, the injection component comprises a sealer and a conveying pipe, one end of the conveying pipe is arranged below the heating component, the sealer is arranged at one end of the conveying pipe far away from the heating component, the sealer comprises a discharging shell and an electromagnetic lock, the discharging shell is arranged at one end of the conveying pipe far away from the heating component, the electromagnetic lock is arranged at one side of the discharging shell, when a die is replaced, the electromagnetic lock is powered off to separate the discharging shell from the conveying pipe, alloy injection is stopped, the heating component and the conveying pipe do not need to be stopped in the process of replacing the die, and the problem that the grinding tool is required to be replaced after the injection of the traditional semi-solid forming equipment is completed is solved.
However, the heating assembly and the injection assembly of the existing semi-solid forming device are separately arranged, so that the operation is complex, the occupied area is large, the screw rod is adopted to stir in the barrel and then perform injection, the progress and quality of slurry generation cannot be checked and controlled, and the forming effect is poor. Therefore, the scheme provides a semi-solid forming device for the copper alloy pipe fitting, so as to solve the technical problem.
Disclosure of Invention
The invention aims to provide a semi-solid forming device for a copper alloy pipe, which solves the technical problems of complex semi-solid forming operation and poor forming effect of the copper alloy pipe, and ensures that the semi-solid slurry is generated and injected more simply, conveniently and quickly by the reciprocating motion of a lifting cylinder in a semi-solid slurry cylinder, and the semi-solid slurry is checked and controlled more conveniently, thereby improving the semi-solid forming effect.
The semi-solid forming device for the copper alloy pipe fitting comprises a frame, a casting die arranged at the bottom of the frame, a semi-solid slurry barrel, a lifting barrel, a slurry stirring assembly and a power assembly, wherein the bottom of the semi-solid slurry barrel is communicated with a pouring gate in the casting die, the lifting barrel is arranged in the semi-solid slurry barrel in a sliding penetrating mode, the slurry stirring assembly is arranged in the lifting barrel in a rotating mode, the power assembly is connected with the slurry stirring assembly, a feeding port is arranged at the side part of the semi-solid slurry barrel, a discharging port communicated with the casting die is arranged at the bottom of the semi-solid slurry barrel, a communication port which is detachably communicated with the feeding port is arranged at the side part of the lifting barrel, a vent higher than the communication port is arranged at the side part of the lifting barrel, a discharging port which is detachably communicated with the semi-solid slurry barrel is arranged at the bottom of the lifting barrel, and a thermocouple is arranged above the lifting barrel;
the semi-solid slurry cylinder is characterized in that a raw material groove communicated with the feeding port is formed in the upper portion of the outer side of the semi-solid slurry cylinder, and a heater is arranged at the lower portion of the outer side of the semi-solid slurry cylinder.
The slurry stirring assembly comprises a stirring shaft which is arranged in the lifting cylinder in a lifting manner, a plurality of blades which are arranged on the outer side of the stirring shaft in an annular array manner, and an isolation disc which is arranged below the blades and connected with the bottom end of the stirring shaft, wherein the bottom side of the isolation disc is detachably abutted to the edge of the feed opening, the top end of the stirring shaft is connected with the power assembly, and the power assembly is arranged on the frame.
The inner side of the lifting cylinder is fixedly provided with a guide ring, the inner side of the longitudinal section of the guide ring is conical, the stirring shaft penetrates through the guide ring, the blades are rotatably arranged on the inner side of the guide ring, and the top side of the isolation disc is detachably abutted to the bottom side of the guide ring.
The semi-solid slurry cylinder is characterized in that a guide post is vertically arranged on the inner side of the semi-solid slurry cylinder, a guide groove corresponding to the guide post is arranged on the outer side of the lifting cylinder, and the guide groove is arranged outside the guide post in a sliding manner.
The top side of the lifting cylinder is sealed with a top cover, one end of the stirring shaft and one end of the thermocouple penetrate through the top cover, and the other end of the thermocouple is fixed on the frame.
Annular guide grooves are formed in the top side of the isolation disc, and the guide grooves are arranged towards the outer edges of the blades.
The power component comprises a speed reducer with an output shaft connected with the stirring shaft, a motor connected with an input shaft of the speed reducer, a telescopic end of the motor, and an electric cylinder I connected with a shell in the motor, wherein a fixed end of the electric cylinder I is fixed on the top side of the frame, a controller is arranged on the frame, and the motor, the electric cylinder I, the heater and the thermocouple are respectively and electrically connected with the controller.
The slurry stirring assembly is made of high-temperature resistant ceramic, the stirring shaft is connected with an output shaft of the speed reducer through a flange, and a mica gasket is arranged between the stirring shaft and the output shaft of the speed reducer in a cushioning manner.
The bottom of frame is provided with the frame, the vertical fixed electronic jar second that is provided with in frame top side, the flexible end of electronic jar second is fixedly provided with the tray, casting mould sets up on the tray, casting mould's both sides are provided with clamping part, electronic jar second with the controller electricity is connected.
The beneficial effects of the invention are as follows:
(1) The semi-solid slurry barrel is slidably arranged in the semi-solid slurry barrel through the lifting barrel, and has the following technical effects:
firstly, when the communicating opening of the lifting cylinder is communicated with the feeding opening, the feeding of the copper alloy raw material is realized, and when the lifting cylinder ascends, the communicating opening is plugged through the inner wall of the semi-solid slurry cylinder, so that the oxidation is avoided when the copper alloy raw material is heated and melted, the feeding is rapid and convenient, and the copper alloy melting effect is better;
secondly, when the copper alloy is cooled after melting, the communication port and the vent port are communicated with the atmosphere when the lifting cylinder continuously slides upwards, so that the cooling effect of the molten copper alloy is better, the thermocouple is in contact with the copper alloy in the cooling process, and the temperature of the copper alloy is more convenient to monitor, so that the quality control of semi-solid slurry is facilitated;
thirdly, be provided with the water conservancy diversion circle in the lift section of thick bamboo, when the (mixing) shaft rotary motion of thick liquids stirring assembly, through the cooperation of blade and water conservancy diversion circle, the production of semi-solid state thick liquids has been accomplished on the one hand, has also accomplished the packing of semi-solid state thick liquids section of thick bamboo simultaneously, and semi-solid state thick liquids's preparation and transportation are convenient and fast more for semi-solid state thick liquids's quality control is more convenient through the rotational speed of adjusting the (mixing) shaft.
(2) Through setting up thick liquids stirring assembly, have following several technical effects:
firstly, a plurality of blades are arranged on the stirring shaft in an array manner, when the blades rotate, the cooled molten copper alloy can be rapidly stirred to generate semi-solid slurry, and the blades drive the molten copper alloy to generate upward thrust to the guide ring, so that the guide ring is separated from the isolation disc, the semi-solid slurry enters the semi-solid slurry barrel after passing through the guide ring, and the generation and conveying efficiency of the semi-solid slurry are higher;
secondly, when the top side of the isolation disc is abutted with the guide ring, the molten copper alloy can be blocked, and when the isolation disc is abutted with the feed opening, the lifting cylinder can be driven to inject the semisolid slurry in the semisolid slurry cylinder into the metal mold, so that the multifunctional effect is achieved;
and thirdly, the annular diversion trenches are formed in the top side of the isolation disc, turbulence is generated through the cooperation of the diversion trenches, the blades and the diversion ring, so that the stirring efficiency of the molten copper alloy is higher, and meanwhile, the generation quality of the semi-solid slurry is better.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the external structure of the semi-solid slurry cartridge of the present invention;
FIG. 3 is a schematic view of the outer structure of the lifting cylinder of the present invention;
FIG. 4 is a schematic view of the slurry stirring assembly of the present invention;
FIG. 5 is a schematic view of the internal structure of the lifting cylinder in the feeding state of the invention;
FIG. 6 is a schematic view showing the internal structure of a lifting cylinder in a molten state of copper alloy raw materials according to the present invention;
FIG. 7 is a schematic view showing the internal structure of the lift cylinder of the present invention when the molten copper alloy is cooled;
FIG. 8 is a schematic view of the internal structure of the lifting cylinder when the semisolid slurry of the invention is generated;
FIG. 9 is a schematic view of the internal structure of the lifting cylinder during the injection of the semisolid slurry of the invention;
fig. 10 is a schematic view of the structure of the casting mold of the present invention.
Wherein, in the figure: 1. a frame; 11. a base; 12. an electric cylinder II; 13. a tray; 2. a semi-solid slurry cylinder; 21. a feed inlet; 22. a discharge port; 23. a guide post; 3. a lifting cylinder; 31. a communication port; 32. a feed opening; 33. a guide ring; 34. a guide groove; 35. a vent; 36. a top cover; 4. a slurry stirring assembly; 41. a stirring shaft; 42. a blade; 43. a spacer disc; 431. a diversion trench; 44. a thermocouple; 45. mica gasket; 5. a raw material tank; 6. a heater; 7. a power assembly; 71. an electric cylinder I; 72. a motor; 73. a speed reducer; 8. a controller; 9. casting a mold; 91. a gate; 92. and a clamping part.
Description of the embodiments
In order to more clearly describe the technical characteristics of the present solution, the present solution is described below by means of specific embodiments.
Referring to fig. 1-10, a semi-solid forming device for copper alloy pipe fittings comprises a frame 1, a casting die 9 arranged at the bottom of the frame 1, a semi-solid slurry barrel 2 with the bottom communicated with a pouring gate 91 in the casting die 9, a lifting barrel 3 penetrating through the semi-solid slurry barrel 2 in a sliding manner, a slurry stirring assembly 4 arranged in the lifting barrel 3 in a rotating manner, and a power assembly 7 connected with the slurry stirring assembly 4, wherein a feed inlet 21 is arranged at the side part of the semi-solid slurry barrel 2, a discharge outlet 22 communicated with the casting die 9 is arranged at the bottom of the semi-solid slurry barrel 2, a communication port 31 detachably communicated with the feed inlet 21 is arranged at the side part of the lifting barrel 3, a vent 35 higher than the communication port 31 is arranged at the side part of the lifting barrel 3, a blanking port 32 detachably communicated with the semi-solid slurry barrel 2 is arranged at the bottom of the lifting barrel 3, and a thermocouple 44 is arranged above the lifting barrel 3;
the upper part of the outer side of the semi-solid slurry cylinder 2 is provided with a raw material tank 5 communicated with a feed inlet 21, the lower part of the outer side of the semi-solid slurry cylinder 2 is provided with a heater 6, and the heater 6 is an electromagnetic heater and has the characteristics of high heat efficiency, short preheating time and high heating speed.
The slurry stirring assembly 4 comprises a stirring shaft 41 which is arranged in the lifting cylinder 3 in a lifting manner, a plurality of blades 42 which are arranged on the outer side of the stirring shaft 41 in a ring-shaped array manner, and a separation disc 43 which is arranged below the blades 42 and connected with the bottom end of the stirring shaft 41, wherein the bottom side of the separation disc 43 is detachably abutted to the edge of the feed opening 32, the top end of the stirring shaft 41 is connected with the power assembly 7, and the power assembly 7 is arranged on the frame 1.
The inside of the lifting cylinder 3 is fixedly provided with a guide ring 33, the inside of the longitudinal section of the guide ring 33 is conical, a stirring shaft 41 passes through the guide ring 33 and is arranged, blades 42 are rotatably arranged on the inside of the guide ring 33, and the top side of a separation disc 43 is detachably abutted to the bottom side of the guide ring 33.
The inside of the semisolid slurry barrel 2 is vertically provided with a guide post 23, the outside of the lifting barrel 3 is provided with a guide groove 34 corresponding to the guide post 23, and the guide groove 34 is arranged outside the guide post 23 in a sliding manner.
The top side of the lifting cylinder 3 is sealed with a top cover 36, one end of the stirring shaft 41 and one end of the thermocouple 44 penetrate through the top cover 36, and the other end of the thermocouple 44 is fixed on the frame 1.
The top side of the isolation disc 43 is provided with an annular diversion trench 431, and the diversion trench 431 is arranged towards the outer edge of the blade 42.
The power assembly 7 comprises a speed reducer 73 with an output shaft connected with the stirring shaft 41, a motor 72 connected with an input shaft of the speed reducer 73, an electric cylinder I71 with a telescopic end connected with a shell in the motor 72, wherein the fixed end of the electric cylinder I71 is fixed on the top side of the frame 1, the frame 1 is provided with a controller 8, and the motor 72, the electric cylinder I71, the heater 6 and the thermocouple 44 are respectively and electrically connected with the controller 8.
The slurry stirring assembly 4 is made of high-temperature-resistant alumina ceramic, the alumina ceramic has better mechanical strength, wear resistance and high-temperature resistance, the sintering temperature of the alumina ceramic is up to 1650-1990 ℃, so that the blades 42 made of the alumina ceramic can keep stability and strength in molten copper alloy, the alumina ceramic impeller is applied to practical production, the stirring shaft 41 and the isolation disc 43 are both made of high-temperature-resistant alumina ceramic, the stirring shaft 41 is connected with an output shaft of the speed reducer 73 through a flange, a mica gasket 45 is arranged between the stirring shaft 41 and the output shaft of the speed reducer 73 in a cushioning mode, and the high-temperature influence of the high temperature of the stirring shaft 41 on the speed reducer 73 is relieved through the arrangement of the mica gasket 45.
The bottom of frame 1 is provided with frame 11, and the vertical fixed electronic jar second 12 that is provided with in frame 11 top side, and the flexible end of electronic jar second 12 is fixed to be provided with tray 13, and casting mould 9 sets up on tray 13, and casting mould 9 both sides are provided with clamping part 92, and electronic jar second 12 is connected with the controller 8 electricity.
The specific working process of the invention comprises the following steps:
referring to fig. 1, when in use, the casting mold 9 is firstly placed on the tray 13, the electric cylinder two 12 is started, the pouring gate 91 of the casting mold 9 is sealed and attached with the blanking opening 32 of the semi-solid slurry barrel 2 by the ascending of the tray 13, at the moment, the semi-solid forming device is in a preparation state, and the heater 6 is started to preheat the semi-solid slurry barrel 2;
the copper alloy raw material blank is loaded into the raw material groove 5, sequentially passes through the feed port 21 and the communication port 31, enters the lifting cylinder 3, starts the electric cylinder I71, sequentially drives the stirring shaft 41 to ascend through the motor 72 and the output shaft of the speed reducer 73, see fig. 2 and 6, and starts to drive the lifting cylinder 3 to move upwards along the semi-solid slurry cylinder 2 because the isolation disc 43 at the bottom end of the stirring shaft 41 is abutted with the guide ring 33, the communication port 31 is separated from the feed port 21, the communication port 31 is sealed by the semi-solid slurry cylinder 2 and is further heated and melted by the heater 6, the air port 35 is higher than the communication port 31, see fig. 6, and at the moment, the air port 35 is in a slightly opened and sealed state, so that the internal pressure of the lifting cylinder 3 is prevented from being excessively high during heating and melting;
referring to fig. 2 and 7, after the copper alloy raw material is completely melted, the stirring shaft 41 continues to rise, and drives the lifting cylinder 3 to rise through the isolation disc 43 until the communication port 31 and the air port 35 of the lifting cylinder 3 are communicated with the atmosphere, the heater 6 is stopped through the controller 8, at this time, the melted copper alloy enters a cooling state, the thermocouple 44 is inserted into the melted copper alloy, the convection generated by the communication port 31 and the air port 35 ensures that the cooling speed of the melted copper alloy meets the requirement, and the temperature of the copper alloy in the cooling state is monitored through the thermocouple 44 to determine whether the temperature generated by the semisolid slurry is reached;
referring to fig. 2 and 8, after the thermocouple 44 measures that the copper alloy in a cooling state meets the requirement, the motor 72 drives the stirring shaft 41 to rotate rapidly through the speed reducer 73, the stirring shaft 41 drives the blades 42 to rotate, the molten copper alloy in cooling is stirred rapidly when the blades 42 rotate, the blades are spiral, the molten copper alloy is driven to circulate through the blades 42, upward thrust to the guide ring 33 is generated when the molten copper alloy rises, the guide ring 33 slides slightly upwards with the lifting cylinder 3 and is separated from the isolation disc 43, in order to ensure the separation effect, the isolation disc 43 of the slurry stirring assembly 4 can be pushed downwards through the electric cylinder one 71 to push the isolation disc 43 and the guide ring 33 to be separated and generate a certain gap, at this moment, the semi-solid slurry is sprayed into the slurry cylinder 2 through the gap between the guide ring 33 and the isolation disc 43, the semi-solid slurry is generated and the conveying efficiency is higher, the motor 72 is a variable frequency motor, the semi-solid slurry generation quality and the semi-solid slurry throughput of the semi-solid slurry stirring assembly 4 are controlled under the condition that the total copper alloy is fixed, and the semi-solid slurry stirring assembly has the purposes of better quality are achieved.
Referring to fig. 2 and 9, after the semi-solid slurry is generated and falls into the semi-solid slurry barrel 2, the stirring shaft 41 stops rotating, the first electric cylinder 71 drives the isolation disc 43 to move downwards through the stirring shaft 41 and is in butt joint with the blanking port 32, the blanking port 32 is plugged through the isolation disc 43, the isolation disc 43 continues to move downwards, the semi-solid slurry in the semi-solid slurry barrel 2 is extruded, the extruded semi-solid slurry is rapidly injected into the casting mold 9 through the discharge port 22 and the pouring gate 91 of the casting mold 9, the semi-solid slurry enters the casting mold 9 to complete the molding of the copper alloy pipe fitting, and the power of the heater 6 can be started and adjusted according to the state of the semi-solid slurry when the semi-solid slurry is injected, so that the semi-solid slurry is injected more smoothly.
After the copper alloy pipe fitting is formed, the electric cylinder II 12 drives the tray 13 to descend, the tray 13 drives the casting mould 9 to descend and separate from the semi-solid slurry cylinder 2, the casting mould 9 is separated through the clamping part 92, the cast copper alloy pipe fitting is taken out, and finally the casting mould 9 is reset to start casting of the next copper alloy pipe fitting.
The technical features of the present invention that are not described in the present invention may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be within the scope of the present invention by those skilled in the art.
Claims (9)
1. The semi-solid forming device for the copper alloy pipe fitting comprises a frame (1) and a casting die (9) arranged at the bottom of the frame (1), and is characterized by further comprising a semi-solid slurry barrel (2) with the bottom communicated with a pouring gate (91) in the casting die (9), a lifting barrel (3) penetrating through the semi-solid slurry barrel (2) in a sliding manner, a slurry stirring assembly (4) arranged in the lifting barrel (3) in a rotating manner, a power assembly (7) connected with the slurry stirring assembly (4), a feeding port (21) arranged at the side part of the semi-solid slurry barrel (2), a discharging port (22) communicated with the casting die (9) arranged at the bottom of the semi-solid slurry barrel (2), a communication port (31) detachably communicated with the feeding port (21) arranged at the side part of the lifting barrel (3), a vent (35) higher than the communication port (31) arranged at the side part of the lifting barrel (3), and a thermocouple (44) arranged below the semi-solid slurry barrel (2) and at the bottom of the lifting barrel (3);
the semi-solid slurry cylinder (2) is characterized in that a raw material groove (5) communicated with the feeding port (21) is formed in the upper portion of the outer side of the semi-solid slurry cylinder (2), and a heater (6) is arranged in the lower portion of the outer side of the semi-solid slurry cylinder (2).
2. The semi-solid forming device of the copper alloy pipe fitting according to claim 1, wherein the slurry stirring assembly (4) comprises a stirring shaft (41) which is arranged in the lifting cylinder (3) in a lifting manner, a plurality of blades (42) which are arranged on the outer side of the stirring shaft (41) in an annular array manner, and a separation disc (43) which is arranged below the blades (42) and is connected with the bottom end of the stirring shaft (41), wherein the bottom side of the separation disc (43) is detachably abutted to the edge of the feed opening (32), the top end of the stirring shaft (41) is connected with the power assembly (7), and the power assembly (7) is arranged on the frame (1).
3. Semi-solid forming device of copper alloy pipe fittings according to claim 2, characterized in that the inner side of the lifting cylinder (3) is fixedly provided with a guide ring (33), the inner side of the longitudinal section of the guide ring (33) is conical, the stirring shaft (41) passes through the guide ring (33), the blades (42) are rotatably arranged on the inner side of the guide ring (33), and the top side of the isolation disc (43) is detachably abutted to the bottom side of the guide ring (33).
4. A semi-solid forming device of a copper alloy pipe fitting according to claim 3, characterized in that a guide post (23) is vertically arranged on the inner side of the semi-solid slurry cylinder (2), a guide groove (34) corresponding to the guide post (23) is arranged on the outer side of the lifting cylinder (3), and the guide groove (34) is arranged outside the guide post (23) in a sliding manner.
5. Semi-solid forming device of copper alloy pipe fittings according to claim 4, characterized in that the lifting cylinder (3) is sealed with a top cover (36) at its top side, the stirring shaft (41) and one end of the thermocouple (44) are arranged through the top cover (36), and the other end of the thermocouple (44) is fixed on the frame (1).
6. Semi-solid forming device for copper alloy pipe fittings according to claim 5, characterized in that the top side of the isolation disc (43) is provided with annular guide grooves (431), which guide grooves (431) are arranged towards the outer edges of the blades (42).
7. Semi-solid forming device of copper alloy pipe fittings according to claim 2, characterized in that the power assembly (7) comprises a speed reducer (73) with an output shaft connected with the stirring shaft (41), a motor (72) connected with an input shaft of the speed reducer (73), an electric cylinder one (71) with a telescopic end connected with a shell in the motor (72), a fixed end of the electric cylinder one (71) is fixed on the top side of the frame (1), a controller (8) is arranged on the frame (1), and the motor (72), the electric cylinder one (71), the heater (6) and the thermocouple (44) are respectively and electrically connected with the controller (8).
8. The semi-solid forming device of the copper alloy pipe fitting according to claim 7, wherein the slurry stirring assembly (4) is made of high-temperature resistant ceramics, the stirring shaft (41) is connected with an output shaft of the speed reducer (73) through a flange, and a mica gasket (45) is arranged between the stirring shaft (41) and the output shaft of the speed reducer (73).
9. The semi-solid forming device of the copper alloy pipe fitting according to claim 8, wherein a base (11) is arranged at the bottom of the frame (1), an electric cylinder two (12) is vertically and fixedly arranged at the top side of the base (11), a tray (13) is fixedly arranged at the telescopic end of the electric cylinder two (12), casting dies (9) are arranged on the tray (13), clamping parts (92) are arranged at two sides of the casting dies (9), and the electric cylinder two (12) is electrically connected with the controller (8).
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| CN202311568160.1A CN117259713B (en) | 2023-11-23 | 2023-11-23 | Semi-solid forming device for copper alloy pipe fitting |
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