CN110202117B - Anti-expansion steel sheet casting equipment for aluminum piston - Google Patents
Anti-expansion steel sheet casting equipment for aluminum piston Download PDFInfo
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- CN110202117B CN110202117B CN201910487322.6A CN201910487322A CN110202117B CN 110202117 B CN110202117 B CN 110202117B CN 201910487322 A CN201910487322 A CN 201910487322A CN 110202117 B CN110202117 B CN 110202117B
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- casting
- negative pressure
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- storehouse
- liquid storage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
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Abstract
The invention provides anti-expansion steel sheet casting equipment for an aluminum piston, which comprises a casting liquid storage bin, a negative pressure mechanism and a casting cavity, wherein the negative pressure mechanism is arranged at the top of the casting liquid storage bin, the casting cavity is arranged in the casting liquid storage bin, and the negative pressure mechanism is used for absorbing air in the casting cavity through negative pressure so that the casting cavity is filled with casting liquid. The invention has the advantages that: absorb the inside air of casting die cavity through negative pressure mechanism for during casting liquid enters into the casting die cavity from the casting die cavity bottom, can eliminate the inside bubble phenomenon that produces of casting liquid and take place, negative pressure mechanism combustion gas lets in the casting liquid storage storehouse in addition, makes the piston in the casting liquid storage storehouse move down, lets in the casting liquid storage storehouse casting liquid get into the casting die cavity fast, can improve casting efficiency when eliminating the inside bubble of casting liquid, the result of use is better.
Description
Technical Field
The invention relates to the technical field of pistons, in particular to expansion-proof steel sheet casting equipment for an aluminum piston.
Background
The different working temperatures of various parts of the piston and the different expansion characteristics of the aluminum alloy piston and the cast iron cylinder sleeve cause the difficulty of controlling the clearance between the skirt part of the piston and the cylinder sleeve. The most effective skirt shape also fails to overcome the different expansion rates between the piston and the cylinder. The anti-expansion steel sheet is applied to the piston, and due to the existence of the anti-expansion steel sheet, the deformation of the piston can be effectively controlled, so that the clearance of a cylinder is reduced, the fuel economy is improved, and the noise control is enhanced.
However, when the existing expansion-proof steel sheet casting equipment is used, bubbles are easily generated in casting liquid in the casting process of the equipment, the machining effect is affected, and the expansion-proof steel sheet is easy to shrink and loosen in the casting process, so that the later-stage using effect of the expansion-proof steel sheet is poor.
Disclosure of Invention
The invention provides an anti-expansion steel sheet casting device for an aluminum piston, aiming at the defects of the prior art.
The invention solves the technical problems through the following technical means:
the anti-expansion steel sheet casting equipment for the aluminum piston comprises a casting liquid storage bin, a negative pressure mechanism and a casting cavity, wherein the negative pressure mechanism is arranged at the top of the casting liquid storage bin, the casting cavity is arranged in the casting liquid storage bin, and the negative pressure mechanism is used for absorbing air in the casting cavity through negative pressure so that the casting cavity is filled with casting liquid;
the storehouse is stored to casting liquid comprises disc storehouse, heat preservation storehouse and inlet pipe, the top intercommunication in disc storehouse has the storehouse that keeps warm, the storehouse that keeps warm is cylindrical inside hollow structure, and just the columniform side is opened there is the section groove, the top in disc storehouse is located section groove position department intercommunication has the inlet pipe.
Preferably, negative pressure mechanism includes negative pressure pump, right angle mount, rotates connecting seat and breather pipe, rotate the top at the heat preservation storehouse is fixed to the connecting seat, it is connected with the right angle mount to rotate on the connecting seat, the horizontal pole bottom of right angle mount is fixed with the negative pressure pump, the intake pipe intercommunication casting die cavity of negative pressure pump, the outlet duct intercommunication breather pipe one end of negative pressure pump, the other end intercommunication heat preservation storehouse of breather pipe leans on the top position, be equipped with the second one-way control valve in the breather pipe.
Preferably, evenly be equipped with a plurality of heat conduction mechanisms on the inside wall in heat preservation storehouse, heat conduction mechanism includes heat conduction layer and arc elastic plate, heat conduction layer fixes on the lateral wall in heat preservation storehouse, heat conduction layer's intermediate position department is equipped with the arc elastic plate, the arc elastic plate is used for restricting the position of casting the die cavity.
Preferably, a vibration motor is arranged between the heat preservation bin and the arc-shaped elastic plate and used for driving the casting cavity to vibrate to eliminate internal bubbles.
Preferably, a piston is arranged at a position, close to the top, inside the heat preservation bin, and an arc-shaped protection layer for assisting in limiting the position of the casting cavity is arranged at the intersection of the heat preservation bin and the disc bin.
Preferably, a sealing connection valve connected with the casting cavity is arranged at the center of the disc bin.
Preferably, a first one-way control valve is arranged in the feeding pipe at a position close to the pipe orifice.
The invention has the advantages that: the negative pressure mechanism is used for absorbing air in the casting cavity to enable casting liquid to enter the casting cavity from the bottom of the casting cavity, so that the phenomenon of generating bubbles in the casting liquid can be eliminated;
secondly the casting die cavity is located the inside in casting liquid storage storehouse, and the temperature that the storehouse gived off is stored to the accessible casting liquid preheats the heat preservation to the casting die cavity and handles, can make the steel sheet that prevents rising can not produce the shrinkage porosity phenomenon when the casting, and the effect of casting is better, and the quality of product is higher, and life is longer.
Drawings
FIG. 1 is a schematic structural diagram of an anti-expansion steel sheet casting device of an aluminum piston;
FIG. 2 is a schematic structural view of a casting liquid storage bin according to the present invention;
FIG. 3 is a schematic view showing the internal structure of a casting liquid storage container according to the present invention;
FIG. 4 is a schematic structural diagram of a negative pressure mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heat conduction mechanism according to the present invention.
Reference numbers in the figures: 10. the casting liquid storage bin comprises a casting liquid storage bin body 11, a disc bin body 111, a sealing connection valve 12, a heat preservation bin body 121, an arc-shaped protection layer 122, a piston 13, a feeding pipe 131, a first one-way control valve 20, a heat conduction mechanism 21, a heat conduction layer 22, an arc-shaped elastic plate 23, a vibration motor 30, a negative pressure mechanism 31, a negative pressure pump 32, a right-angle fixing frame 33, a rotary connection seat 34, a vent pipe 341, a second one-way control valve 40, a heat insulation sleeve 41, a heater 50 and a casting cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1, the expansion-proof steel sheet casting apparatus for an aluminum piston according to the present embodiment includes a casting liquid storage bin 10, a negative pressure mechanism 30 and a casting cavity 50, wherein the negative pressure mechanism 30 is disposed at a top of the casting liquid storage bin 10, the casting cavity 50 is disposed in the casting liquid storage bin 10, and the negative pressure mechanism 30 is configured to absorb air inside the casting cavity 50 by negative pressure so that the casting cavity 50 is filled with casting liquid;
the negative pressure mechanism 30 absorbs the air in the casting cavity 50, so that the liquid in the casting liquid storage bin 10 slowly flows into the casting cavity 50, and in this way, bubbles generated when the liquid is poured into the casting cavity 50 from top to bottom can be eliminated, and the casting effect of the expansion-proof steel sheet is better.
As shown in fig. 2, the casting liquid storage bin 10 is composed of a disc bin 11, a heat preservation bin 12 and a feeding pipe 13, the top of the disc bin 11 is communicated with the heat preservation bin 12, the heat preservation bin 12 is of a cylindrical hollow structure, a section groove is formed in the cylindrical side face, and the top of the disc bin 11 is located at the section groove position and is communicated with the feeding pipe 13.
Put into casting liquid and store storehouse 10 in preserving with casting liquid, can make the temperature of casting liquid storage storehouse 10 self rise, place casting die cavity 50 and keep warm the storehouse 12 inboardly, store the temperature that the storehouse 10 gave out through casting liquid, can carry out and keep warm to casting die cavity 50 and handle for the steel sheet that prevents rising can not produce the shrinkage porosity phenomenon when the casting, and the effect of casting is better.
As shown in fig. 1 and 4, negative pressure mechanism 30 includes negative pressure pump 31, right angle mount 32, rotates connecting seat 33 and breather pipe 34, rotate connecting seat 33 and fix the top at heat preservation storehouse 12, it is connected with right angle mount 32 to rotate on the connecting seat 33 to rotate, the horizontal pole bottom of right angle mount 32 is fixed with negative pressure pump 31, negative pressure pump 31's intake pipe intercommunication casting die cavity 50, negative pressure pump 31's outlet duct intercommunication breather pipe 34 one end, the other end intercommunication heat preservation storehouse 12 of breather pipe 34 leans on the top position, be equipped with second one-way control valve 341 in the breather pipe 34 for control negative pressure pump 31 combustion gas passes through breather pipe 34 and discharges into in heat preservation storehouse 12.
The position of the negative pressure pump 31 and the integral right-angle fixing frame 32 can be rotated by rotating the connecting seat 33, so that a user can conveniently place and take out the casting cavity 50; when the negative pressure pump 31 works, the air in the casting cavity 50 can be absorbed, so that the casting cavity 50 is gradually filled with the casting liquid, the air absorbed by the negative pressure pump 31 is discharged into the heat preservation bin 12 through the vent pipe 34, the piston 122 in the heat preservation bin 12 moves downwards, the casting liquid in the compressed casting liquid storage bin 10 quickly enters the casting cavity 50, the pouring efficiency is improved, and the using effect is better.
As shown in fig. 1 and 5, a plurality of heat conduction mechanisms 20 are uniformly arranged on the inner side wall of the insulation chamber 12, the heat conduction mechanisms 20 include a heat conduction layer 21 and an arc-shaped elastic plate 22, the heat conduction layer 21 is fixed on the side wall of the insulation chamber 12, the arc-shaped elastic plate 22 is arranged at the middle position of the heat conduction layer 21, and the arc-shaped elastic plate 22 is used for limiting the position of the casting cavity 50.
Heat in the casting liquid storage bin 10 is rapidly conducted to the casting cavity 50 through the heat conduction layer 21, heat conduction efficiency is improved, the arc-shaped elastic plate 22 is arranged at the middle position of the heat conduction layer 21, heat conduction efficiency is not affected, meanwhile, the position of the casting cavity 50 can be limited in an auxiliary mode, and the using effect is better.
As shown in fig. 1 and 5, a vibration motor 23 is disposed between the heat preservation chamber 12 and the arc-shaped elastic plate 22, and the vibration motor 23 is used for driving the casting cavity 50 to vibrate to eliminate internal air bubbles.
When the bottom of the casting cavity 50 is contacted with the casting liquid, a small amount of bubbles are attached to the bottom of the casting cavity, and the bubbles attached to the bottom can be quickly eliminated through the vibration of the vibration motor 23, so that the casting effect of the anti-expansion steel sheet is better, and the service life of the casting cavity 50 is longer.
As shown in fig. 1 and 3, a piston 122 is disposed inside the heat-insulating bin 12 near the top, an arc-shaped protective layer 121 for assisting in limiting the position of the casting cavity 50 is disposed at the intersection of the heat-insulating bin 12 and the disc bin 11, a sealing connection valve 111 connected to the casting cavity 50 is disposed at the center of the disc bin 11, and a first one-way control valve 131 is disposed inside the feeding pipe 13 near the pipe orifice.
The arc-shaped protection layer 121 can assist in limiting the position of the casting cavity 50, and can also timely support the casting cavity 50 when the weight of the casting cavity 50 changes, so that the position of the casting cavity 50 is stable; the first one-way control valve 131 controls the casting liquid to enter the casting liquid storage bin 10, and when the casting liquid enters the casting cavity 50, the first one-way control valve 131 is in a closed state, so that the casting liquid storage bin 10 is in a sealed state, and the casting liquid in the casting liquid storage bin 10 stably enters the casting cavity 50.
In this embodiment, when in use, a casting liquid to be cast is first added into the casting liquid storage bin 10, the first one-way control valve 131 in the feeding pipe 13 is closed, so that the casting liquid storage bin 10 is in a sealed state, the casting cavity 50 is placed into the casting liquid storage bin 10, the heat conducting layer 21 on the casting liquid storage bin 10 carries out heat transmission, and the casting cavity 50 is subjected to preheating and heat preservation treatment;
after the preheating and heat preservation treatment is finished, the negative pressure pump 31 works to absorb the air in the casting cavity 50 so that the casting cavity 50 is gradually filled with the casting liquid, the air absorbed by the negative pressure pump 31 is discharged into the heat preservation bin 12 through the vent pipe 34 so that the piston 122 in the heat preservation bin 12 moves downwards, the casting liquid in the compressed casting liquid storage bin 10 quickly enters the casting cavity 50, and the casting efficiency is improved;
in the process that the casting liquid enters the casting cavity 50, the vibration motor 23 works to drive the casting cavity 50 to vibrate, bubbles generated in the casting cavity 50 are eliminated, the casting effect of the anti-expansion steel sheet is better, and the casting process is completed when the casting liquid completely enters the casting cavity 50.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A steel sheet casting equipment that rises for preventing of aluminum piston, its characterized in that: the casting liquid storage device comprises a casting liquid storage bin (10), a negative pressure mechanism (30) and a casting cavity (50), wherein the negative pressure mechanism (30) is arranged at the top of the casting liquid storage bin (10), the casting cavity (50) is arranged in the casting liquid storage bin (10), and the negative pressure mechanism (30) is used for absorbing air in the casting cavity (50) through negative pressure so that the casting cavity (50) is filled with casting liquid;
storehouse (10) is stored to casting liquid comprises disc storehouse (11), heat preservation storehouse (12) and inlet pipe (13), the top intercommunication in disc storehouse (11) has heat preservation storehouse (12), heat preservation storehouse (12) are cylindrical inside hollow structure, and open columniform side has the section groove, the top in disc storehouse (11) is located section groove position department intercommunication has inlet pipe (13).
2. The apparatus of claim 1, wherein: negative pressure mechanism (30) include negative pressure pump (31), right angle mount (32), rotate connecting seat (33) and breather pipe (34), rotate the top at heat preservation storehouse (12) is fixed in connecting seat (33), it is connected with right angle mount (32) to rotate on connecting seat (33), the horizontal pole bottom of right angle mount (32) is fixed with negative pressure pump (31), the intake pipe intercommunication casting die cavity (50) of negative pressure pump (31), the outlet duct intercommunication breather pipe (34) one end of negative pressure pump (31), the other end intercommunication heat preservation storehouse (12) of breather pipe (34) lean on the top position, be equipped with second one-way control valve (341) in breather pipe (34).
3. The apparatus of claim 2, wherein: evenly be equipped with a plurality of heat-conduction mechanisms (20) on the inside wall in heat preservation storehouse (12), heat-conduction mechanism (20) are including heat conduction layer (21) and arc elastic plate (22), heat conduction layer (21) are fixed on the lateral wall in heat preservation storehouse (12), the intermediate position department of heat conduction layer (21) is equipped with arc elastic plate (22), arc elastic plate (22) are used for restricting the position of casting die cavity (50).
4. The apparatus of claim 3, wherein: a vibration motor (23) is arranged between the heat preservation bin (12) and the arc-shaped elastic plate (22), and the vibration motor (23) is used for driving the casting cavity (50) to vibrate to eliminate internal bubbles.
5. The apparatus for casting expansion-proof steel sheet for aluminum piston according to claim 1, 2, 3 or 4, wherein: and a piston (122) is arranged at a position, close to the top, in the heat-insulating bin (12), and an arc-shaped protective layer (121) for assisting in limiting the position of the casting cavity (50) is arranged at the intersection of the heat-insulating bin (12) and the disc bin (11).
6. The apparatus of claim 5, wherein: and a sealing connection valve (111) connected with the casting cavity (50) is arranged at the center of the disc bin (11).
7. The apparatus of claim 6, wherein: and a first one-way control valve (131) is arranged at the position, close to the pipe orifice, in the feeding pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487322.6A CN110202117B (en) | 2019-06-05 | 2019-06-05 | Anti-expansion steel sheet casting equipment for aluminum piston |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487322.6A CN110202117B (en) | 2019-06-05 | 2019-06-05 | Anti-expansion steel sheet casting equipment for aluminum piston |
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| Publication Number | Publication Date |
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| CN110202117A CN110202117A (en) | 2019-09-06 |
| CN110202117B true CN110202117B (en) | 2021-04-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100384609C (en) * | 2002-11-05 | 2008-04-30 | 鲍志勇 | Casting infiltration method of heating power for preparing composite alloy material with metal base |
| EP1737993B1 (en) * | 2004-04-22 | 2010-08-11 | Alcan International Limited | Improved recycling method for al-b, c composite materials |
| JP2011016139A (en) * | 2009-07-08 | 2011-01-27 | Sukegawa Electric Co Ltd | Casting apparatus |
| CN103978187A (en) * | 2014-05-06 | 2014-08-13 | 西北工业大学 | Device and method for counter-gravity casting of solidification process controlled titanium-based alloy |
| CN106166607A (en) * | 2016-08-29 | 2016-11-30 | 上海交通大学 | The suction pouring device of cast magnesium alloy |
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