Aluminum alloy pouring pressure maintaining equipment with casting surface stroking and pushing anti-deformation functions
Technical Field
The invention relates to the field of aluminum alloy manufacturing, in particular to aluminum alloy pouring pressure maintaining equipment capable of preventing deformation by utilizing casting surface stroking.
Background
With the rapid development of the industrial level in China, the application of the aluminum alloy is more and more extensive, and the requirements on the quality and the performance of the casting are higher and higher. When the aluminum alloy is cast, the low-pressure casting is adopted, and the machining with less allowance and no allowance of the casting can be realized. When a low-pressure casting process is utilized, after the height of casting liquid is determined, the casting liquid is subjected to pressurizing and pressure maintaining treatment under the action of equipment, after the pressure on the metal liquid level is increased to solidification pressure, the casting liquid needs to be subjected to pressurizing and complete solidification, the top end surface of the casting liquid can have a color different from other surface layers due to the special property of the casting liquid, the surface and inner air holes are eliminated in the pressurizing process, the periphery of the casting liquid is higher in accumulation due to the flowing inertia of the casting liquid, concave holes with smaller parts are formed, and the self-healing capability of the metal casting liquid is poorer when the self-fluidity of the metal casting liquid meets bubbles or holes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an aluminum alloy pouring pressure maintaining device capable of preventing deformation by utilizing casting surface stroking, so as to solve the defects that in the prior art, after the height of a pouring liquid is determined, the pouring liquid is subjected to pressure filling and pressure maintaining treatment under the action of the device, when the pressure on the metal liquid surface is increased to solidification pressure, the casting needs to be subjected to pressure maintaining and complete solidification, due to the special properties of the pouring liquid, the top end surface of the pouring liquid has a color different from that of other surface layers, and the surface and internal pores are eliminated in the pressure filling process, and meanwhile, due to the flowing inertia of the pouring liquid, the periphery is accumulated to a higher degree, the existing part of small concave holes are formed, and the self-flowability of the metal pouring liquid is poor in self-healing capacity when the metal pouring liquid meets bubbles or holes.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides an utilize casting face to smooth out and push away aluminum alloy pouring pressurize equipment of preapring for an unfavorable turn of events, its structure includes installation base, pressurize stove, regulating shaft, movable cover, smooth out and push away and prevent rough device, pressure display screen, air compressor, the pressurize stove is located installation base upper surface and is connected through the electric welding, the regulating shaft is located pressurize stove front surface upper portion and is connected through the electric welding, the movable cover is located the pressurize stove upper surface and is connected through the hinge, smooth out and push away and prevent that rough device locates the pressurize stove inside and be connected through the lock with the movable cover, pressure display screen locates pressurize stove left side surface, air compressor installs in pressurize stove right side surface and with smooth out and push away and prevent rough device and be connected, smooth out and push away and prevent that rough device includes lock plate, side chisel structure, prevent that face becomes mechanism, double suction ring, side chisel structure install in lock plate lower surface and be connected through the electric welding, the anti-color-changing mechanism is arranged in the middle of the lower surface of the buckling plate and is connected with the lower surface of the buckling plate through electric welding, and the double-suction ring is arranged between the edge chisel structure and the anti-color-changing mechanism and is connected with the buckling plate through electric welding.
As a further scheme of the invention, the side chisel structure comprises a rotary buckle, a flow through column, a sliding groove, a sealing ring, a top plate, a limiting spring rod and an external plate, wherein the flow through column is provided with eight sealing rings which are uniformly and equidistantly arranged on the lower surface of the rotary buckle and connected through electric welding, the sliding grooves are provided with eight sealing rings which are respectively arranged on the inner lower part of the flow through column and are of an integrated structure, the sealing rings are arranged eight sealing rings which are respectively arranged on the inner lower part of the flow through column, the upper end of the limiting spring rod extends into the sliding groove and is connected with the top plate through electric welding, the external plate is arranged on the lower surface of the limiting spring rod and is exposed in the air, and the external plate is connected with the limiting spring rod through electric welding, so that the phenomenon that the outer casting is prevented from.
As a further scheme of the invention, the rotary retaining ring is connected with the air compressor, the interior of the rotary retaining ring is of a hollow structure and is connected with the flow column in a penetrating manner, and the pressure maintaining movement of the side chiseling structure along with the equipment is favorably realized.
As a further scheme of the invention, the lower surface of the external plate is provided with a plurality of arc-shaped convex particles, and the arc angles of the arc-shaped convex particles are greater than ∠ 100 degrees and less than or equal to ∠ 160 degrees, so that the stroking treatment for compacting the casting liquid flowing to the outside is favorably realized, and bubbles are prevented from appearing outside.
According to a further scheme of the invention, the color change prevention mechanism comprises an airflow column, a rotating disk and an oil stroking plate, the rotating disk is mounted on the lower surface of the airflow column and connected through electric welding, and the oil stroking plate is arranged on the lower surface of the rotating disk and connected through electric welding, so that the oil generated by deposition on the upper part of a casting can be subjected to active flow treatment.
According to a further scheme of the invention, the oil stroking plate comprises an inner frame, a plurality of heating strips, a vent plate and a cross plate, wherein the heating strips are uniformly and equidistantly arranged in the inner frame, the vent plate is arranged on the lower surface of the inner frame and connected through electric welding, and the cross plate is arranged on the lower surface of the vent plate and connected through electric welding, so that the color difference on the surface of a casting is prevented.
As a further scheme of the invention, the airflow in the airflow column is in an outward blowing and blowing shape, so that hot air blowing and melting treatment can be performed on the surface of the airflow column, and the oil is prevented from forming an aggregation and confluence effect.
As a further scheme of the invention, the airflow in the double suction ring is in an adsorption effect and has a bidirectional circulation structure, so that the absorption treatment of the color-changing oil on the surface is favorably realized, and the color difference of a formed casting is avoided.
Advantageous effects of the invention
Compared with the traditional precision casting aluminum alloy pouring pressure maintaining equipment, the invention has the following beneficial effects:
the invention utilizes the edge chisel structure, and under the action of synchronous movement of the edge chisel structure and the internal pressure of the equipment during pressurizing to pressure maintaining, under the coordination of rotary stroking of the arc-shaped convex particles, the invention is beneficial to preventing the outer edge of a casting from being unsmooth solidification, causing bubbles or being difficult to demould.
The invention uses the anti-color change mechanism to perform hot air blowing and melting treatment on the oil generated by precipitation at the upper part of the pouring liquid when the pouring liquid reaches the top surface and is pressurized to the pressure maintaining effect. The oil is prevented from forming an aggregation and confluence effect, and is absorbed under the action of the flow washing sleeve, so that the color difference phenomenon on the surface of the formed casting is prevented.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the detailed description of non-limiting embodiments with reference to the attached drawings.
In the drawings:
FIG. 1 is a schematic structural view of an aluminum alloy pouring pressure maintaining device with casting surface stroking and pushing deformation prevention according to the invention.
Fig. 2 is a front view and a schematic sectional structure of the stroking and pushing device for preventing roughness.
Fig. 3 is a schematic bottom view of the side chisel structure of the present invention.
Fig. 4 is a front view of the side chisel structure of the present invention.
Fig. 5 is an enlarged view of a structure in fig. 2.
FIG. 6 is a schematic bottom view of the oil stroking plate of the present invention.
Fig. 7 is a schematic view of the lower structure of the double suction ring of the present invention.
In the figure: the device comprises a mounting base-1, a pressure maintaining furnace-2, an adjusting shaft-3, a movable cover-4, a stroking and pushing anti-roughness device-5, a pressure display screen-6, an air compressor-7, a buckling plate-5 a, an edge chisel structure-5 b, an anti-color change mechanism-5 c, a double suction ring-5 d, a rotary snap ring-5 b1, a flow column-5 b2, a sliding groove-5 b3, a sealing ring-5 b4, a top plate-5 b5, a limiting spring rod-5 b6, an external plate-5 b7, an arc-shaped convex particle-5 b71, an airflow column-5 c1, a rotary disc-5 c2, an oil stroking plate-5 c3, an inner frame-5 c31, a heating strip-5 c32, a vent plate-5 c33 and a cross plate-5 c 34.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-7, the invention provides a technical scheme of an aluminum alloy pouring pressure maintaining device with casting surface stroking and pushing deformation prevention, which comprises the following steps:
as shown in FIGS. 1-2, an aluminum alloy pouring pressure maintaining equipment utilizing casting surface stroking and pushing for preventing deformation structurally comprises an installation base 1, a pressure maintaining furnace 2, an adjusting shaft 3, a movable cover 4, a stroking and pushing anti-roughening device 5, a pressure display screen 6 and an air compressor 7, wherein the pressure maintaining furnace 2 is arranged on the upper surface of the installation base 1 and is connected with the upper surface of the pressure maintaining furnace 2 through electric welding, the adjusting shaft 3 is arranged on the upper portion of the front surface of the pressure maintaining furnace 2 and is connected with the upper surface of the pressure maintaining furnace 2 through electric welding, the movable cover 4 is arranged on the upper surface of the pressure maintaining furnace 2 and is connected with the upper surface of the pressure maintaining furnace through a hinge, the stroking and pushing anti-roughening device 5 is arranged inside the pressure maintaining furnace 2 and is connected with the movable cover 4 through buckling, the pressure display screen 6 is arranged on the left side surface of the pressure maintaining furnace 2, the air compressor 7 is arranged on the right side surface of the pressure maintaining furnace, Prevent face and become mechanism 5c, double suction ring 5d, limit chisel structure 5b is installed in buckling plate 5a lower surface and is connected through the electric welding, prevent face and become mechanism 5c and locate buckling plate 5a lower surface middle part and be connected through the electric welding, double suction ring 5d is installed in limit chisel structure 5b and is prevented face and become the mechanism 5c in the middle of and be connected with buckling plate 5a electric welding.
As shown in fig. 3-4, the side chisel structure 5b includes a rotary buckle 5b1, a flow post 5b2, a sliding slot 5b3, a sealing ring 5b4, a top plate 5b5, a limiting spring rod 5b6 and an external plate 5b7, the flow post 5b2 is eight in number and is respectively installed on the lower surface of the rotary buckle 5b1 in a uniform and equidistant manner and connected by electric welding, the sliding slot 5b3 is eight in number and is respectively installed on the inner lower portion of the flow post 5b2 and is an integrated structure, the sealing ring 5b4 is eight in number and is respectively installed on the inner lower portion of the flow post 5b2, the upper end of the limiting spring rod 5b6 extends into the sliding slot 5b3 and is connected with the top plate 5b5 by electric welding, the external plate 5b7 is installed on the lower surface of the limiting spring rod 5b6 and is exposed to the air, the external plate 5b7 is connected with the limiting spring rod 5b6 by electric welding to prevent the occurrence of unevenness, resulting in bubbling or difficult mold release.
As shown in fig. 2, the rotary snap ring 5b1 is connected to the air compressor 7, and the interior of the rotary snap ring 5b1 is hollow and is connected to the flow column 5b2 in a penetrating manner, which is beneficial to realizing the pressure maintaining movement of the side chisel structure 5b along with the equipment.
As shown in fig. 3, the lower surface of the external plate 5b7 is provided with a plurality of arc-shaped protrusions 5b71, and the arc angle of the arc-shaped protrusions 5b71 is larger than ∠ 100 ° and smaller than or equal to ∠ 160 °, so that the stroking treatment for compacting the casting liquid flowing to the outside is facilitated, and bubbles are prevented from occurring at the outside.
As shown in fig. 2, the color change prevention mechanism 5c comprises an airflow column 5c1, a rotating disc 5c2 and an oil stroking plate 5c3, wherein the rotating disc 5c2 is mounted on the lower surface of the airflow column 5c1 and connected with the lower surface through electric welding, and the oil stroking plate 5c3 is mounted on the lower surface of the rotating disc 5c2 and connected with the lower surface through electric welding, so that the oil generated by the upper deposition of the casting can be subjected to active flow treatment.
As shown in fig. 5-6, the oil stroking plate 5c3 includes an inner frame 5c31, heating strips 5c32, a vent plate 5c33, and a cross plate 5c34, the heating strips 5c32 are provided with a plurality of strips and are respectively installed inside the inner frame 5c31 in a uniform and equidistant manner, the vent plate 5c33 is installed on the lower surface of the inner frame 5c31 and is connected by electric welding, and the cross plate 5c34 is installed on the lower surface of the vent plate 5c33 and is connected by electric welding, which is beneficial to preventing the casting surface from color difference.
As shown in fig. 2, the airflow in the airflow column 5c1 is in an outward blowing shape, which is beneficial to performing hot air blowing and melting treatment on the surface of the airflow column, so as to avoid the oil from forming an aggregation confluence effect.
As shown in fig. 7, the air flow inside the double suction ring 5d is in an adsorption effect and has a bidirectional circulation structure, which is beneficial to absorbing the color-changing oil on the surface and avoiding the color difference of the formed casting.
In summary, the anti-color change mechanism 5c is used for effectively stroking oil deposited on the upper surface of the casting to prevent the oil from gathering and converging, the double suction ring 5d is used for performing adsorption treatment, and the edge chiseling structure 5b is used for actively pushing and compacting the casting liquid around the outer part of the casting to prevent the phenomenon that the outer edge is solidified irregularly to cause bubbles or is difficult to demould.
The specific realization principle is as follows: when the casting liquid is used, the aluminum alloy casting liquid needs to be poured into the pressure maintaining furnace 2, after the height of the casting liquid is determined, the casting liquid is pressurized and maintained under the action of equipment, after the pressure on the metal liquid level rises to the solidification pressure, the casting needs to be pressurized and completely solidified, the top end surface of the casting liquid has colors different from other surface layers due to the special properties of the casting liquid, the surface and the inner air holes are eliminated in the pressurizing process, the periphery of the casting liquid is higher due to the flowing inertia of the casting liquid, the metal casting liquid has small concave holes, the self-flowability of the metal casting liquid meets bubbles or holes, and the self-healing capacity of the metal casting liquid is poor.
Therefore, by using the stroking and pushing anti-roughness device 5, when casting liquid is in a pressure maintaining state, the rotary retaining ring 5b1 rotates under the action of equipment power on, so that the whole body of the device is driven to perform the stroking action on the surface to be solidified of the casting liquid, the air pressure inside the flow column 5b2 is consistent with the pressurizing and pressure maintaining air pressure of the device, the position-limiting spring rod 5b6 during pressure maintaining drives the external plate 5b7 to be arranged on the same horizontal plane with the surface of the casting liquid, and the arc-shaped convex particles 5b71 arranged on the lower surface of the external plate are used for performing the rotary stroking action on the peripheral surface of the casting liquid, so that the stroking action on the accumulated concave holes and bubbles which are formed on the periphery is realized, and the phenomena of difficult demoulding and a large amount of bubbles and grooves of the casting liquid after pressure maintaining caused by the accumulated casting liquid are avoided.
Meanwhile, under the action of 5c, the airflow in the airflow column 5c1 is in an outward blowing drum shape, under the rotation action of the rotating disc 5c2 and the inside of the oil stroking plate 5c3, the airflow is in a hot air shape under the influence of the heating strips 5c32 when passing, hot air blowing and melting treatment is carried out on the surface of the casting solution to avoid the oil on the surface from forming an aggregation confluence effect, meanwhile, through the cross plate 5c34 on the lower surface of the vent plate 5c33, under the rotation action, the oil collected on the surface of the casting solution is pushed to the two outer surfaces, and meanwhile, the outward flowing oil is subjected to concentrated adsorption treatment under the action of the double suction ring 5d, so that the phenomenon of color difference of the surface of the formed casting can be prevented.
The invention solves the problems that after the height of the pouring liquid is determined in the prior art, the pouring liquid is pressurized and pressure-maintained under the action of equipment, when the pressure on the metal liquid surface rises to solidification pressure, the casting needs to be pressurized and completely solidified, simultaneously, because of the special property of the pouring liquid, the top end surface of the pouring liquid has the color different from other surface layers, the surface and the inner air holes are eliminated in the pressurizing process, simultaneously, the periphery is higher in accumulation due to the flowing inertia of the pouring liquid, a part of smaller concave holes are formed, the self-healing capacity of the metal pouring liquid is poorer when the self-fluidity of the metal pouring liquid meets air bubbles or holes, the invention utilizes the synchronous movement function of the edge chisel structure when the pouring liquid and the internal pressure of the equipment are pressurized under the coordination of the rotating and stroking of the arc convex particles, the invention is beneficial to preventing the phenomenon that the outer edge of the casting is not flat and solidified to cause bubbles or difficult demoulding, and the invention utilizes the anti-color change mechanism to carry out hot air blowing and melting treatment on oil substances generated by precipitation at the upper part of the casting liquid when the casting liquid reaches the top surface and is pressurized to the pressure maintaining effect. The oil is prevented from forming an aggregation and confluence effect, and is absorbed under the action of the flow washing sleeve, so that the color difference phenomenon on the surface of the formed casting is prevented.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.