Alloy automobile wheel hub casting device and method

Abstract

The present invention discloses an alloy automobile wheel hub casting molding device and method, belonging to the field of automobile manufacturing. An alloy automobile wheel hub casting molding device includes a melting furnace, an impurity removal furnace and a connecting pipe, wherein the connecting pipe is arranged between the melting furnace and the impurity removal furnace; the left end of the connecting pipe is connected to the bottom of the inner wall of the melting furnace, and the right end of the connecting pipe is connected to the impurity removal furnace; a quantitative feeding component for feeding catalyst and impurity removal agent is installed on the top of the impurity removal furnace; the present invention adds a quantitative feeding component to the impurity removal furnace, so that when the liquid metal is stirred inside the impurity removal furnace, the first feeding barrel and the second feeding barrel can be controlled to add corresponding metal powder or the amount and rate of addition, thereby realizing the quantitative feeding process, and this quantitative feeding process does not require additional drive, and the driving motor, linkage gear plate and stirring rod can be used to drive the quantitative feeding component to perform adjustment work.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a casting molding device and method for an alloy automobile wheel hub. Background Art

[0002] The wheel hub, also known as the wheel rim, is a cylindrical part of the tire that supports the tire and is centrally mounted on the shaft. Common automobile wheel hubs include steel wheel hubs and aluminum alloy wheel hubs. Steel wheel hubs are high in strength and are often used in large trucks; however, steel wheel hubs are heavy and have a single appearance, which does not conform to today's low-carbon and fashionable concepts, and are gradually being replaced by aluminum alloy wheel hubs.

[0003] Compared with steel car wheels, aluminum alloy wheels have obvious advantages: low density, about 1 / 3 of steel, which means that aluminum alloy wheels of the same volume will be 2 / 3 lighter than steel wheels. Statistics show that if the weight of the entire vehicle is reduced by 10%, fuel efficiency can be improved by 6%~8%. Therefore, the promotion of aluminum alloy wheels is of great significance for energy conservation, emission reduction and low-carbon life. Aluminum has high thermal conductivity, while steel has low thermal conductivity. Therefore, under the same conditions, the heat dissipation performance of aluminum alloy wheels is better than that of steel wheels, and it is fashionable and beautiful. Aluminum alloy can be strengthened by aging. The casting strength of aluminum alloy wheels that have not been aging treated is low and easy to process and form. After corrosion-resistant treatment and painting, the aluminum alloy wheels are diverse in color and exquisite and beautiful.

[0004] However, in the current alloy wheel manufacturing, the metal melting efficiency is too slow. When it is necessary to add magnesium, titanium and other metal mixed alloys to remove impurities, it is often manually stuffed directly from the feed port. This is not only dangerous, but the sprinkled materials are easy to adhere to the furnace wall or accumulate into blocks, affecting the reaction rate. When the impurities react and reach the surface of the alloy solution, it is necessary to manually actively salvage the floating impurities, which is not only inefficient but also prone to certain waste. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of low raw material manufacturing efficiency in the prior art and to propose an alloy automobile wheel hub casting molding device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for casting and forming an alloy automobile wheel hub comprises a melting furnace, a de-impurity furnace and a connecting pipe, wherein the connecting pipe is arranged between the melting furnace and the de-impurity furnace; the left end of the connecting pipe is connected to the bottom of the inner wall of the melting furnace, and the right end of the connecting pipe is connected to the de-impurity furnace; a quantitative feeding assembly for feeding a catalyst and a de-impurity agent is installed on the top of the de-impurity furnace, and a filter assembly for filtering impurities is installed on the right side of the de-impurity furnace; a support frame, the melting furnace and the de-impurity furnace are fixedly connected to the support frame; a heating assembly is provided on the side wall of the melting furnace, and the heating assembly can simultaneously preheat the de-impurity furnace.

[0008] Preferably, the heating assembly includes a heating seat, a flamethrower, a heat flow pipe, a preheating seat, an air outlet pipe, and an air pump; the air pump is fixed on a support frame; the heating seat is installed on the side wall of the melting furnace, the preheating seat is installed on the side wall of the impurity removal furnace, there are multiple flamethrowers, and the multiple flamethrowers are evenly distributed inside the heating seat; one end of the heat flow pipe is connected to the heating seat, and the other end of the heat flow pipe is connected to the preheating seat; the bottom of the preheating seat is connected to the air outlet pipe, and the air outlet of the air pump is connected to the bottom of the heating seat.

[0009] Preferably, the furnace includes a main furnace body, and a feed hopper is installed on the left side of the main furnace body; the bottom of the inner wall of the main furnace body is connected with a connecting pipe, and an outflow valve is installed on the connecting pipe; the furnace also includes a supplementary pipe, the air inlet end of the supplementary pipe passes through and extends to the interior of the main furnace body; the extended end of the supplementary pipe is connected with a plurality of extension pipes in sequence from top to bottom, and the plurality of extension pipes are each provided with a discharge hole, and a first one-way valve is installed in each of the plurality of extension pipes.

[0010] Preferably, the impurity removal furnace includes a processing furnace body, a driving motor, an insulating frame, a stirring rod and stirring blades; the impurity removal furnace is fixed on a supporting frame; the bottom of the insulating frame is fixedly connected to the top of the processing furnace body, and the driving motor is installed on the insulating frame; the top end of the stirring rod passes through the processing furnace body and is fixedly connected to the output shaft of the driving motor, and the bottom end of the stirring rod is rotatably connected to the bottom of the inner wall of the processing furnace body, and the stirring blades are provided in three groups and are arranged in parallel from top to bottom and installed on the stirring rod.

[0011] Preferably, the output shaft of the driving motor is fixedly connected to the crankshaft, and a piston assembly is fixedly connected to the thermal insulation frame, and the power end of the piston assembly is rotatably connected to the crankshaft; a heat conduction pipe is provided in the furnace, and the heat conduction pipe is spirally coiled from top to bottom and installed on the inner wall of the main furnace body; a first delivery pipe and a second delivery pipe are connected to the piston assembly, the other end of the second delivery pipe is connected to the heat conduction pipe, and the other end of the heat conduction pipe is connected to the third delivery pipe; a second one-way valve is provided in both the first delivery pipe and the second delivery pipe.

[0012] Preferably, the impurity removal furnace further comprises a ventilation pipe; the bottom end of the ventilation pipe sequentially passes through the heat insulation frame and the processing furnace body and extends to the interior of the processing furnace body.

[0013] Preferably, a discharge pipe is connected to the bottom of the inner wall of the processing furnace body; and a discharge valve is installed on the discharge pipe.

[0014] Preferably, a filter assembly is provided on the right side of the processing furnace body, and the filter assembly includes a filter pipe; the filter pipe is provided with three inlet ends in sequence from top to bottom, and the three inlet ends are connected with the right side of the inner wall of the processing furnace body, and height valves are fixedly installed on the three inlet ends, and the end of the filter pipe away from the processing furnace body is connected with the filter pipe; a threaded sealing ring is threadedly connected to the filter pipe, and sealing screw grooves are provided on the top and bottom of the filter pipe, the bottom of the threaded sealing ring is threadedly connected to the adjacent sealing screw groove, and the bottom end of the filter pipe is threadedly connected to the discharge pipe through the sealing screw groove; three filter screens are installed in sequence from top to bottom inside the filter pipe, and the apertures of the three filter screens decrease in sequence from top to bottom.

[0015] Preferably, the quantitative feeding assembly includes an electric push rod, a first feeding barrel, a second feeding barrel, a first rotating gear and a second rotating gear; the electric push rod is fixed on the heat insulation frame; the bottom ends of the first feeding barrel and the second feeding barrel both penetrate and extend into the processing furnace body, the output rod of the electric push rod penetrates and extends into the processing furnace body, and the first rotating gear is rotatably connected with the bottom end of the output rod of the electric push rod; a linkage gear plate is fixedly mounted on the stirring rod, the left end of the first rotating gear is meshed with the linkage gear plate, and the right end of the first rotating gear is meshed with the second rotating gear; the top of the second rotating gear is rotatably connected with the inner wall of the processing furnace body, and the second rotating gear is provided with a first feeding hole and a second feeding hole, and the bottoms of the first feeding barrel and the second feeding barrel are both in contact with the top of the second rotating gear.

[0016] A method for casting an alloy automobile wheel hub, the method comprising the following steps:

[0017] Step A, pouring the required solid metal block into the furnace, energizing the heat conduction pipe to heat the aluminum block, and blowing fluxing gas through the supplementary pipe, the first one-way valve, the extension pipe and the discharge hole, and exhausting air from the ventilation hole, so as to increase the melting rate of the aluminum block;

[0018] Step B, open the outflow valve on the connecting pipe, pour the molten alloy liquid inside the main furnace body into the processing furnace body through the connecting pipe, then start the driving motor to drive the stirring rod and the stirring blade to rotate and stir the alloy liquid, and in the stirring process, argon gas can be supplemented through the ventilation pipe, and the quantitative feeding component can be used to quantitatively add titanium and magnesium, and the amount to be added can be selected according to the needs, and the electric push rod drives the first rotating gear to rise and fall, so that the stirring rod can drive the quantitative feeding component while rotating the stirring blade;

[0019] Step C, while introducing argon gas through the vent pipe, flux is added using a quantitative feeding assembly, and multiple ingredients are mixed, and finally impurities and oxides are removed and floated on the upper surface of the alloy liquid;

[0020] Step D, select and open the height valve of the corresponding height on the filter pipe according to the liquid level, and the height of the selected height valve should be slightly lower than the metal liquid level inside the treatment furnace body. At this time, when the height valve is opened, the aluminum water, oxides and other impurities in the upper layer will flow into the filter pipe through the corresponding opened height valve, and be purified by multiple filter screens inside the filter pipe;

[0021] Step F, after opening the discharge valve to connect the pure molten metal with the molten metal in the treatment furnace body, they enter the raw material barrel of the casting mold through the discharge pipe, and then subsequent process operations such as casting can be carried out to finally form a complete alloy automobile wheel hub.

[0022] Compared with the prior art, the present invention provides an alloy automobile wheel hub casting molding device, which has the following beneficial effects:

[0023] 1. The alloy automobile wheel hub casting molding device has a supplementary pipe inserted into the furnace to increase the melting rate from the inside, reduce the time for the metal inside the main furnace body to change from solid to liquid, and through the cooperation of the flame-spraying pipe and the air pump, all the solid alloys inside the entire furnace can be heated evenly.

[0024] 2. The alloy automobile wheel hub casting and forming device, by adding a quantitative feeding component to the impurity removal furnace, can ensure that while the liquid metal is stirred inside the impurity removal furnace, it can control whether the first feeding barrel and the second feeding barrel add corresponding metal powder or the amount and rate of addition, thereby realizing the quantitative feeding process. Moreover, this quantitative feeding process does not require additional drive, and the driving motor, linkage gear plate, and stirring rod can be used to drive the quantitative feeding component to perform adjustment work.

[0025] 3. The alloy automobile wheel hub casting molding device is provided with a filter component. After the liquid metal impurities in the impurity removal furnace have floated on the upper surface, the height valve can be opened according to the height of the liquid metal to allow the upper part of the metal liquid to pass through the filter tube for self-filtration under the action of gravity. At this time, the discharge valve is opened to mix the remaining impurity-free liquid metal with the impurity-removed metal passing through the filter tube and then enter the raw material barrel of the casting machine, which is convenient for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a first-view stereoscopic structure proposed by the present invention;

[0027] Figure 2 A schematic diagram of a second viewing angle stereoscopic structure proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the three-dimensional explosion structure inside the filter tube proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of the quantitative feeding assembly proposed by the present invention when it is connected with the linkage gear plate and the stirring rod;

[0031] Figure 6 The present invention provides Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0032] Figure 7 The present invention provides Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0033] In the figure: 1. melting furnace; 11. main furnace body; 12. feeding hopper; 13. supplementary pipe; 14. heat conducting pipe; 15. ventilation hole; 16. extension pipe; 17. discharge hole; 18. first one-way valve; 2. impurity removal furnace; 21. treatment furnace body; 22. driving motor; 23. heat insulation frame; 24. ventilation pipe; 25. linkage gear plate; 26. stirring rod; 27. stirring blade; 28. discharge pipe; 29. ​​discharge valve; 3. quantitative unloading assembly; 31. electric push rod; 32. first unloading barrel; 33. second unloading barrel; 34. first rotating gear; 35. Second rotating gear; 36. First discharge hole; 37. Second discharge hole; 4. Filter assembly; 41. Filter pipe; 42. Height valve; 43. Filter pipe; 44. Threaded sealing ring; 45. Sealing screw groove; 46. Filter screen; 5. Support frame; 6. Connecting pipe; 7. Heating assembly; 71. Heating seat; 72. Flame-throwing pipe; 73. Heat flow pipe; 74. Preheating seat; 75. Air outlet pipe; 76. Air pump; 8. Piston assembly; 801. Crankshaft; 802. First delivery pipe; 803. Second delivery pipe; 804. Third delivery pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Reference Figure 1-7 :

[0037] A casting and forming device for an alloy automobile wheel hub comprises a melting furnace 1, a de-impurity furnace 2 and a connecting pipe 6, wherein the connecting pipe 6 is arranged between the melting furnace 1 and the de-impurity furnace 2; the left end of the connecting pipe 6 is connected to the bottom of the inner wall of the melting furnace 1, and the right end of the connecting pipe 6 is connected to the de-impurity furnace 2; a quantitative feeding component 3 for feeding a catalyst and a de-impurity agent is installed on the top of the de-impurity furnace 2, and a filter component 4 for filtering impurities is installed on the right side of the de-impurity furnace 2; a supporting frame 5, the melting furnace 1 and the de-impurity furnace 2 are fixedly connected to the supporting frame 5; a heating component 7 is provided on the side wall of the melting furnace 1, and the heating component 7 can simultaneously preheat the de-impurity furnace 2.

[0038] The connecting pipe 6 is equipped with a valve to control the flow rate and flow rate of the liquid metal.

[0039] In one embodiment, the heating assembly 7 includes a heating seat 71, a flame-spraying tube 72, a heat flow tube 73, a preheating seat 74, an air outlet pipe 75, and an air pump 76; the air pump 76 is fixed on the support frame 5; the heating seat 71 is installed on the side wall of the melting furnace 1, the preheating seat 74 is installed on the side wall of the impurity removal furnace 2, there are multiple flame-spraying tubes 72, and the multiple flame-spraying tubes 72 are evenly distributed inside the heating seat 71; one end of the heat flow tube 73 is connected to the heating seat 71, and the other end of the heat flow tube 73 is connected to the preheating seat 74; the bottom of the preheating seat 74 is connected to the air outlet pipe 75, and the air outlet of the air pump 76 is connected to the bottom of the heating seat 71.

[0040] The number of the flame-spraying tubes 72 may be 8 to 16, and they are connected to an external combustion gas, such as natural gas.

[0041] In one embodiment, the furnace 1 includes a main furnace body 11, and a feed hopper 12 is installed on the left side of the main furnace body 11; the bottom of the inner wall of the main furnace body 11 is connected with the connecting pipe 6, and the connecting pipe 6 is installed with an outflow valve; the furnace 1 also includes a supplementary pipe 13, the air inlet end of the supplementary pipe 13 passes through and extends to the interior of the main furnace body 11; the extended end of the supplementary pipe 13 is connected with a plurality of extension pipes 16 in sequence from top to bottom, and the plurality of extension pipes 16 are each provided with a discharge hole 17, and a first one-way valve 18 is installed in the plurality of extension pipes 16.

[0042] The number of the extension tubes 16 may be 6-8.

[0043] A replenishing pipe 13, an extension pipe 16, a discharge hole 17 and a first one-way valve 18 are provided to replenish the flux inside the main furnace body 11, and the replenishment can be dispersed through the extension pipe 16 and the discharge hole 17, so that the solid metal is received more evenly.

[0044] In one embodiment, the impurity removal furnace 2 includes a processing furnace body 21, a driving motor 22, an insulation frame 23, a stirring rod 26 and a stirring blade 27; the impurity removal furnace 2 is fixed on the support frame 5; the bottom of the insulation frame 23 is fixedly connected to the top of the processing furnace body 21, and the driving motor 22 is installed on the insulation frame 23; the top end of the stirring rod 26 penetrates the processing furnace body 21 and is fixedly connected to the output shaft of the driving motor 22, and the bottom end of the stirring rod 26 is rotatably connected to the bottom of the inner wall of the processing furnace body 21, and there are three groups of stirring blades 27, which are arranged in parallel from top to bottom and installed on the stirring rod 26.

[0045] The impurity removal furnace 2 is provided to stir the liquid metal, remove hydrogen from the alloy metal and increase the density of the liquid alloy, and the heat insulation frame 23 can isolate the quantitative feeding component 3 and the drive motor 22 from the impurity removal furnace 2 to prevent the high temperature generated by direct contact from damaging the drive motor 22 and other parts in the quantitative feeding component 3.

[0046] In one embodiment, the output shaft of the driving motor 22 is fixedly connected to the crankshaft 801, and the piston assembly 8 is fixedly connected to the insulation frame 23, and the power end of the piston assembly 8 is rotatably connected to the crankshaft 801; a heat conduction pipe 14 is provided in the furnace 1, and the heat conduction pipe 14 is spirally coiled from top to bottom and installed on the inner wall of the main furnace body 11; the piston assembly 8 is connected to the first delivery pipe 802 and the second delivery pipe 803, the other end of the second delivery pipe 803 is connected to the heat conduction pipe 14, and the other end of the heat conduction pipe 14 is connected to the third delivery pipe 804; the first delivery pipe 802 and the second delivery pipe 803 are both provided with a second one-way valve.

[0047] The first delivery pipe 802 is externally connected to a liquid storage tank, and the liquid storage tank contains cold water.

[0048] In one embodiment, the impurity removal furnace 2 further includes a ventilation pipe 24 ; the bottom end of the ventilation pipe 24 sequentially passes through the heat insulation frame 23 and the processing furnace body 21 and extends to the interior of the processing furnace body 21 .

[0049] The ventilation pipe 24 can replenish argon gas and the flux required for impurity removal at the same time, so that the oxide impurities in the liquid alloy float to the surface for easy processing.

[0050] In one embodiment, a discharge pipe 28 is connected to the bottom of the inner wall of the processing furnace body 21 ; a discharge valve 29 is installed on the discharge pipe 28 .

[0051] A discharge pipe 28 and a discharge valve 29 are provided, and the other end of the discharge pipe 28 is connected to the raw material barrel inside the casting machine, so that the processed liquid metal can be introduced into the casting machine for convenient casting operation.

[0052] In one embodiment, a filter assembly 4 is provided on the right side of the processing furnace body 21, and the filter assembly 4 includes a filter pipe 41; the filter pipe 41 is provided with three inlet ends in sequence from top to bottom, and the three inlet ends are all connected to the right side of the inner wall of the processing furnace body 21, and height valves 42 are fixedly installed on the three inlet ends, and the end of the filter pipe 41 away from the processing furnace body 21 is connected to a filter pipe 43; a threaded sealing ring 44 is threadedly connected to the filter pipe 41, and sealing grooves 45 are provided on the top and bottom of the filter pipe 43, and the bottom of the threaded sealing ring 44 is threadedly connected to the adjacent sealing groove 45, and the bottom end of the filter pipe 43 is threadedly connected to the discharge pipe 28 through the sealing groove 45; three filter screens 46 are installed in sequence from top to bottom inside the filter pipe 43, and the apertures of the three filter screens 46 decrease from top to bottom.

[0053] The filter assembly 4 can be provided to guide the impurities on the upper layer into the liquid through the filter pipe 41 and the height valve 42 opened at the corresponding height after the materials are added and mixed inside the impurity removal furnace 2.

[0054] The three-layer filtering structure can filter and remove impurities to the greatest extent.

[0055] In one embodiment, the quantitative feeding assembly 3 includes an electric push rod 31, a first feeding barrel 32, a second feeding barrel 33, a first rotating gear 34 and a second rotating gear 35; the electric push rod 31 is fixed on the heat insulation frame 23; the bottom ends of the first feeding barrel 32 and the second feeding barrel 33 both penetrate and extend into the processing furnace body 21, the output rod of the electric push rod 31 penetrates and extends into the processing furnace body 21, and the first rotating gear 34 is rotatably connected to the bottom end of the output rod of the electric push rod 31; a linkage gear plate 25 is fixedly mounted on the stirring rod 26, the left end of the first rotating gear 34 is meshed with the linkage gear plate 25, and the right end of the first rotating gear 34 is meshed with the second rotating gear 35; the top of the second rotating gear 35 is rotatably connected to the inner wall of the processing furnace body 21, and the second rotating gear 35 is provided with a first feeding hole 36 and a second feeding hole 37, and the bottoms of the first feeding barrel 32 and the second feeding barrel 33 are both in contact with the top of the second rotating gear 35.

[0056] The quantitative feeding component 3 is provided to enable convenient and quantitative addition of magnesium and titanium.

[0057] A method for casting an alloy automobile wheel hub, the method comprising the following steps:

[0058] Step A, pouring the required solid metal block into the furnace 1, energizing the heat pipe 14 to heat the aluminum block, and blowing fluxing gas through the supplementary pipe 13, the first one-way valve 18, the extension pipe 16 and the discharge hole 17, and exhausting air from the ventilation hole 15, so as to increase the melting rate of the aluminum block;

[0059] Step B, open the outflow valve on the connecting pipe 6, pour the molten alloy liquid in the main furnace body 11 into the processing furnace body 21 through the connecting pipe 6, and then start the driving motor 22 to drive the stirring rod 26 and the stirring blade 27 to rotate and stir the alloy liquid. In the stirring process, argon gas can be supplemented through the ventilation pipe 24, and the quantitative feeding component 3 can be used to quantitatively add titanium and magnesium in a proportion, and the amount to be added can be selected according to the needs. The electric push rod 31 drives the first rotating gear 34 to rise and fall, so that the stirring rod 26 can drive the quantitative feeding component 3 while rotating the stirring blade 27;

[0060] Step C: while introducing argon gas through the vent pipe 24, flux is added by using the quantitative feeding assembly 3, and multiple ingredients are mixed, and finally impurities and oxides are removed and floated on the upper surface of the alloy liquid;

[0061] Step D, select and open the height valve 42 of the corresponding height on the filter pipe 41 according to the liquid level, and the height of the selected height valve 42 should be slightly lower than the metal liquid level inside the treatment furnace body 21. At this time, when the height valve 42 is opened, the aluminum liquid, oxides and other impurities in the upper layer will flow into the filter pipe 41 through the corresponding opened height valve 42, and be purified by multiple filter screens 46 inside the filter pipe 43;

[0062] Step F, after opening the discharge valve 29 to connect the pure molten metal with the molten metal inside the treatment furnace body 21, they enter the raw material barrel of the mold through the discharge pipe 28, and then the subsequent molding and other process operations can be carried out to finally form a complete alloy automobile wheel hub.

[0063] Furthermore, the number of the filter screens 46 is three.

[0064] In the present invention, firstly, the required solid metal block, such as an aluminum block, is poured into the interior of the furnace 1, and the interior of the furnace 1 is fully heated by using the heating seat 71 and multiple flamethrower tubes 72. At this time, air is blown into the interior of the heating seat 71 by the air pump 76 to accelerate the melting efficiency, and fluxing gas is blown into the replenishing pipe 13, the first one-way valve 18, the extension pipe 16 and the discharge hole 17, and air is discharged from the ventilation hole 15. After the solid metal block is melted, liquid alloy will be formed inside the main furnace body 11, and exist in the main furnace body 11 in a fluid manner. At this time, the outflow valve on the connecting pipe 6 is opened, and the molten alloy liquid inside the main furnace body 11 is poured into the processing furnace body 21 through the connecting pipe 6.

[0065] At this time, the driving motor 22 is started to drive the stirring rod 26 and the stirring blade 27 to rotate and stir the alloy liquid. In the stirring process, argon gas can be added through the ventilation pipe 24 to reduce the number of pores in the liquid metal, and the quantitative feeding component 3 can be used to add titanium and magnesium in a quantitative ratio. In the quantitative feeding component 3, when titanium and magnesium need to be added, the electric push rod 31 is started to drive the first rotating gear 34 to descend, so that the first rotating gear 34 can establish a transmission relationship between the linkage toothed disc 25 and the second rotating gear 35. At this time, the second rotating gear 35 will rotate, and the first feeding hole 36 and the second feeding hole 36 can be selected according to the needs. The discharge hole 37 rotates to the lower part of the first discharge barrel 32 and the second discharge barrel 33 accordingly, and the titanium and magnesium filled in the first discharge barrel 32 and the second discharge barrel 33 are discharged in proportion according to the different sizes of the apertures of the first discharge hole 36 and the second discharge hole 37. The addition of titanium and magnesium can effectively increase the hardness of the liquid alloy, and when the first discharge barrel 32 and the second discharge barrel 33 discharge the materials from the first discharge hole 36 and the second discharge hole 37, they will not discharge all at once, but will form a gradual falling effect according to the openings of the first discharge hole 36 and the second discharge hole 37 and the action of gravity.

[0066] When the replenishment is completed, the second rotating gear 35 is rotated until the bottom of the first and second unloading barrels 32 and 33 is closed by the second rotating gear 35, and the electric push rod 31 will drive the first rotating gear 34 to retract, cancel the connection between the linkage gear plate 25 and the second rotating gear 35, that is, stop replenishing the metal, and according to needs, while introducing argon gas through the ventilation pipe 24, flux can be added through the ventilation pipe 24, and multiple ingredients are mixed, and finally impurities and oxides are removed and floated on the upper surface of the alloy liquid.

[0067] At this time, the driving motor 22 drives the stirring rod 26 and the stirring blade 27 to stir the liquid metal all the time. After the stirring is completed, the height valve 42 of the corresponding height on the filter pipe 41 is opened according to the liquid level, and the selected height of the height valve 42 should be slightly lower than the metal liquid level inside the processing furnace body 21. At this time, when the height valve 42 is opened, the upper aluminum water, oxides and other impurities will flow into the filter pipe 41 through the corresponding opened height valve 42. While being purified by the three filter screens 46 inside the filter pipe 43, the discharge valve 29 is opened to connect the pure metal liquid with the metal liquid inside the processing furnace body 21, and then enter the raw material barrel of the casting mold through the discharge pipe 28, and then the subsequent casting mold and other process operations can be carried out, and finally a complete alloy automobile wheel hub is formed, and the whole operation can be completed.

[0068] While the air pump 76 blows air into the heating seat 71, the hot air enters the preheating seat 74 through the heat flow pipe 73 to wrap the outside of the processing furnace body 21, preheating the impurity removal furnace 2. In this way, the liquefied metal after heating in the melting furnace 1 flows into the impurity removal furnace 2. The impurity removal furnace 2 itself already has a relatively high temperature and will not be affected by a large temperature difference, thereby protecting the product quality.

[0069] When the molten alloy liquid inside the main furnace body 11 enters the processing furnace body 21, since the temperature of the main furnace body 11 is still very high, during the start-up of the drive motor 22, the piston assembly 8 is synchronously driven by the crankshaft 801 to move, and the cold water connected to the first delivery pipe 802 is delivered to the heat transfer pipe 14 through the second delivery pipe 803. The water is heated by the residual heat of the main furnace body 11, and then the hot water is discharged through the third delivery pipe 804, and the domestic water is used to achieve secondary utilization of heat.

[0070] The first one-way valve 18 allows gas to enter the extension pipe 16 only through the replenishment pipe 13 .

[0071] The piston assembly 8 comprises a piston cylinder, a piston plate slidably connected in the piston cylinder, and a piston rod rotatably connected to the piston plate.

[0072] The piston cylinder is fixed on the heat insulation frame 23.

[0073] The power end of the piston assembly 8 is rotationally connected to the crankshaft 801, which means that the end of the piston rod away from the piston plate is rotationally connected to the piston rod, and the piston rod is sleeved on the crankshaft 801, similar to the connection between the connecting rod and the crankshaft in a car engine.

[0074] The second one-way valve in the first delivery pipe 802 allows water to flow through the first delivery pipe 802 only into the piston cylinder and cannot flow out in the opposite direction.

[0075] The second one-way valve in the second delivery pipe 803 allows water to flow through the piston cylinder only into the second delivery pipe 803 and cannot flow in the opposite direction.

[0076] Beneficial effects: The alloy automobile wheel hub casting molding device has a supplementary pipe 13 inserted into the interior of the furnace 1 to increase the melting rate from the inside, reduce the time for the metal inside the main furnace body 11 to change from solid to liquid, and cooperate with the flamethrower 72 and the air pump 76 to make all the solid alloys inside the entire furnace 1 be heated evenly. By adding a quantitative feeding component 3 to the impurity removal furnace 2, it can be ensured that while the liquid metal inside the impurity removal furnace 2 is stirred, it can control whether the first feeding barrel 32 and the second feeding barrel 33 are added with corresponding metal powder or the amount and rate of addition, thereby realizing the quantitative feeding process, and this The quantitative unloading process does not require additional drive. The driving motor 22, the linkage gear plate 25, and the stirring rod 26 can drive the quantitative unloading component 3 to perform adjustment work. By providing the filter component 4, after the liquid metal impurities in the impurity removal furnace 2 have floated on the upper surface, the height valve 42 can be opened according to the height of the liquid metal to allow the upper part of the metal liquid to pass through the filter tube 43 for self-filtration under the action of gravity. At this time, the discharge valve 29 is opened to mix the remaining impurity-free liquid metal with the impurity-removed metal passing through the filter tube 43 and then enter the raw material barrel of the casting machine, which is convenient for subsequent operations.

[0077] All controllers and electronic components used in the present invention can be installed in appropriate sizes and models according to actual conditions while ensuring that the functions of the present invention can be achieved.

[0078] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An alloy automobile wheel hub casting device, comprising a melting furnace (1), a de-impurity furnace (2) and a connecting pipe (6), It is characterized in that The connecting pipe (6) is arranged between the melting furnace (1) and the impurity removal furnace (2); The left end of the connecting pipe (6) is connected to the bottom of the inner wall of the melting furnace (1), and the right end of the connecting pipe (6) is connected to the impurity removal furnace (2); a quantitative feeding component (3) for feeding a catalyst and an impurity removal agent is installed on the top of the impurity removal furnace (2), and a filter component (4) for filtering impurities is installed on the right side of the impurity removal furnace (2); A support frame (5), the melting furnace (1) and the impurity removal furnace (2) are both fixedly connected to the support frame (5); The side wall of the melting furnace (1) is provided with a heating component (7), and the heating component (7) can simultaneously preheat the impurity removal furnace (2); The melting furnace (1) comprises a main furnace body (11), and a feed hopper (12) is installed on the left side of the main furnace body (11); The bottom of the inner wall of the main furnace body (11) is connected to the connecting pipe (6), and an outflow valve is installed on the connecting pipe (6); The melting furnace (1) further comprises a supplementary pipe (13), wherein an air inlet end of the supplementary pipe (13) penetrates and extends into the interior of the main furnace body (11); The extended end of the replenishing pipe (13) is connected to a plurality of extension pipes (16) in sequence from top to bottom, each of the plurality of extension pipes (16) is provided with a discharge hole (17), and each of the plurality of extension pipes (16) is installed with a first one-way valve (18); The impurity removal furnace (2) comprises a processing furnace body (21), a driving motor (22), a heat insulation frame (23), a stirring rod (26) and a stirring blade (27); A heat conducting pipe (14) is provided in the melting furnace (1), and the heat conducting pipe (14) is installed on the inner wall of the main furnace body (11) in a spiral manner from top to bottom; A filter assembly (4) is provided on the right side of the treatment furnace body (21), and the filter assembly (4) comprises a filter pipe (41); The impurity removal furnace (2) further comprises a ventilation pipe (24); The bottom end of the ventilation pipe (24) sequentially passes through the heat insulation frame (23) and the processing furnace body (21) and extends to the interior of the processing furnace body (21); The bottom of the inner wall of the processing furnace body (21) is connected to a discharge pipe (28); The discharge pipe (28) is provided with a discharge valve (29); The filter pipe (41) is provided with three inlet ends in sequence from top to bottom, and the three inlet ends are all connected to the right side of the inner wall of the treatment furnace body (21), and a height valve (42) is fixedly installed on the three inlet ends. One end of the filter pipe (41) away from the treatment furnace body (21) is connected to a filter pipe (43); Three filter screens (46) are installed in sequence from top to bottom inside the filter tube (43), and the apertures of the three filter screens (46) decrease in sequence from top to bottom; The quantitative feeding assembly (3) comprises an electric push rod (31), a first feeding cylinder (32), a second feeding cylinder (33), a first rotating gear (34) and a second rotating gear (35).

2. The alloy automobile wheel hub casting molding device according to claim 1, It is characterized in that The heating assembly (7) comprises a heating seat (71), a flame spraying pipe (72), a heat flow pipe (73), a preheating seat (74), an air outlet pipe (75), and an air pump (76); The air pump (76) is fixed on the support frame (5); The heating seat (71) is installed on the side wall of the melting furnace (1), the preheating seat (74) is installed on the side wall of the impurity removal furnace (2), there are a plurality of flame spraying tubes (72), and the plurality of flame spraying tubes (72) are evenly distributed inside the heating seat (71); One end of the heat flow pipe (73) is connected to the heating seat (71), and the other end of the heat flow pipe (73) is connected to the preheating seat (74); The bottom of the preheating seat (74) is connected to the air outlet pipe (75), and the air outlet of the air pump (76) is connected to the bottom of the heating seat (71).

3. The alloy automobile wheel hub casting molding device according to claim 1, It is characterized in that The impurity removal furnace (2) is fixed on a support frame (5); The bottom of the heat insulation frame (23) is fixedly connected to the top of the processing furnace body (21), and the driving motor (22) is installed on the heat insulation frame (23); The top end of the stirring rod (26) passes through the processing furnace body (21) and is fixedly connected to the output shaft of the driving motor (22), and the bottom end of the stirring rod (26) is rotatably connected to the bottom of the inner wall of the processing furnace body (21). The stirring blades (27) are provided in three groups and are arranged in parallel from top to bottom and are installed on the stirring rod (26).

4. The alloy automobile wheel hub casting molding device according to claim 3, It is characterized in that The output shaft of the driving motor (22) is fixedly connected to the crankshaft (801), the heat insulation frame (23) is fixedly connected to a piston assembly (8), and the power end of the piston assembly (8) is rotatably connected to the crankshaft (801); The piston assembly (8) is connected to a first delivery pipe (802) and a second delivery pipe (803); the other end of the second delivery pipe (803) is connected to a heat conduction pipe (14); and the other end of the heat conduction pipe (14) is connected to a third delivery pipe (804); A second one-way valve is provided in each of the first delivery pipe (802) and the second delivery pipe (803).

5. The alloy automobile wheel hub casting molding device according to claim 1, It is characterized in that A threaded sealing ring (44) is threadedly connected to the filter tube (41); sealing screw grooves (45) are provided at the top and bottom of the filter tube (43); the bottom of the threaded sealing ring (44) is threadedly connected to an adjacent sealing screw groove (45); and the bottom end of the filter tube (43) is threadedly connected to a discharge tube (28) via the sealing screw groove (45).

6. The alloy automobile wheel hub casting molding device according to claim 1, It is characterized in that The electric push rod (31) is fixed on the heat insulation frame (23); The bottom ends of the first material discharge barrel (32) and the second material discharge barrel (33) penetrate and extend into the processing furnace body (21), the output rod of the electric push rod (31) penetrates and extends into the processing furnace body (21), and the first rotating gear (34) is rotatably connected to the bottom end of the output rod of the electric push rod (31); A linkage toothed disc (25) is fixedly mounted on the stirring rod (26); the left end of the first rotating gear (34) is meshed with the linkage toothed disc (25); and the right end of the first rotating gear (34) is meshed with the second rotating gear (35); The top of the second rotating gear (35) is rotatably connected to the inner wall of the processing furnace body (21), and the second rotating gear (35) is provided with a first material discharge hole (36) and a second material discharge hole (37), and the bottoms of the first material discharge barrel (32) and the second material discharge barrel (33) are both in contact with the top of the second rotating gear (35).

7. A method for casting an alloy automobile wheel hub according to any one of claims 1 to 6, It is characterized in that The method comprises the following steps: Step A, pouring the required solid metal block into the furnace (1), energizing the heat conducting pipe (14) to heat the aluminum block, blowing fluxing gas through the supplementary pipe (13), the first one-way valve (18), the extension pipe (16) and the discharge hole (17), and discharging air from the ventilation hole (15), thereby increasing the melting rate of the aluminum block; Step B, opening the outflow valve on the connecting pipe (6), pouring the molten alloy liquid in the main furnace body (11) into the processing furnace body (21) through the connecting pipe (6), and then starting the driving motor (22) to drive the stirring rod (26) and the stirring blade (27) to rotate and stir the alloy liquid, and during the stirring process, argon gas can be supplemented through the ventilation pipe (24), and the quantitative feeding component (3) can be used to quantitatively add titanium and magnesium in a proportion, and the amount to be added can be selected according to the needs, and the electric push rod (31) drives the first rotating gear (34) to rise and fall, so that the stirring rod (26) can drive the quantitative feeding component (3) while rotating the stirring blade (27); Step C, while introducing argon gas through the vent pipe (24), flux is added through the vent pipe (24), and multiple ingredients are mixed, and finally impurities and oxides are removed and floated on the upper surface of the alloy liquid; Step D, selecting a height valve (42) of a corresponding height on the filter pipe (41) to be opened according to the liquid level, and the height of the selected height valve (42) should be slightly lower than the metal liquid level inside the treatment furnace body (21). At this time, when the height valve (42) is opened, aluminum liquid, oxides and other impurities in the upper layer will flow into the filter pipe (41) through the corresponding opened height valve (42), and the liquid metal will be purified by passing through three filter screens (46) inside the filter pipe (43); Step F, after opening the discharge valve (29) to connect the pure molten metal with the molten metal inside the treatment furnace body (21), the molten metal enters the raw material barrel of the casting mold through the discharge pipe (28), and then the subsequent casting operation can be carried out, and finally a complete alloy automobile wheel hub is formed.

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