Anti-deformation positioning mold for molding cast steel parts

Abstract

The application discloses a kind of anti-deformation positioning mould for steel casting molding, it is related to sand casting technology field, including: molding machine frame, molding upper die, lower die support, product template and cleaning mould support.The application is by installing cleaning mould support in one end of product template, multiple swingable air blowing nozzles are installed in cleaning mould support, after steel casting sand mold is formed, cleaning mould support directly enters between upper sand mold and lower sand mold, to realize the effect of forming cleaning, simplify the cleaning process of sand mold, and, the swingable design of air blowing nozzle in cleaning process makes that high-speed airflow can cover complete sand mold inner cavity, to ensure cleaning effect, by installing dust hood in cleaning mould support, while blowing and cleaning, dust hood synchronously applies negative pressure, waste sand is extracted and collected due to blowing and raising, reach the effect of blowing and cleaning, completely solve the problem of deformation in the process of steel casting caused by waste sand.

Description

Technical Field

[0001] This invention relates to the field of sand casting technology, and in particular to an anti-deformation positioning mold for molding cast steel parts. Background Technology

[0002] Due to their excellent mechanical properties, cast steel parts are widely used in key fields such as machinery and equipment, energy and power, and transportation. However, cast steel has a large shrinkage rate and complex thermal stress during solidification and cooling, making it prone to defects such as deformation and dimensional deviations, which seriously affect the yield and subsequent processing. Sand casting process, with its advantages of high precision and high efficiency, has made mass production of cast steel parts possible. However, after sand molding, the surface of the mold cavity often has loose fine sand (floating sand) that has not been compacted. When pouring high-temperature molten steel, this residual fine sand will form an unpredictable heat insulation layer or physical obstacle, which seriously interferes with the uniform cooling and free shrinkage of various parts of the casting. It is one of the key factors that induce quality problems such as warping deformation, sand holes, or local thickening of the casting.

[0003] In existing technologies, cleaning sand mold cavities mainly relies on manual air gun blowing at subsequent workstations or a separate cleaning workstation. Manual cleaning suffers from low efficiency, inconsistent cleaning results, dependence on worker experience, and harsh working environments. Setting up a separate cleaning workstation requires additional equipment investment, occupies production line space, and adds a sand mold transfer step, which not only increases costs and production cycle time, but may also cause damage to the precision sand molds or introduce new pollution during the transfer process. The blown-out waste sand dust can easily fall back into the cavity or spread into the workshop, resulting in incomplete cleaning and environmental pollution.

[0004] Therefore, it is necessary to invent an anti-deformation positioning mold for molding cast steel parts to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-deformation positioning mold for molding cast steel parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a deformation-resistant positioning mold for molding cast steel parts, comprising: A molding frame, with a sand-shooting machine fixedly mounted on its top; The upper mold for shaping is installed at the top of the inside of the shaping frame, and it can slide up and down. The lower mold support is fixedly installed inside the molding machine frame and located below the upper molding mold. The lower molding mold is installed inside the lower mold support and can slide up and down. The product template is horizontally slidable and installed inside the molding frame, located between the upper and lower molding molds; A mold cleaning support is fixedly installed at one end of the product template. The mold cleaning support is a frame structure and has multiple air guide pipes rotatably installed inside. Multiple air blowing nozzles are fixedly installed on both sides of the multiple air guide pipes. A dust collection hood is fixedly installed on the inner side wall of the mold cleaning support, and multiple through holes are provided on the outer surface of the dust collection hood. The air blowing nozzles are used to blow and clean the sand mold cavity between the upper mold and the lower mold. The dust collection hood is used to extract and collect the waste sand blown off the sand mold cavity to prevent the waste sand from causing deformation of the cast steel parts during molding.

[0007] Preferably, it also includes a throat tube, which is fixedly installed at one end of the air nozzle; The air outlet has two outlets, both of which are located inside the top of the throat tube, and both outlets are designed with an inclined structure.

[0008] Preferably, it also includes a pressure plate, which is set as an inclined structure and fixedly installed at one end of the air guide pipe, and a tension spring is installed between the middle of the outer side of the pressure plate and the outer side wall of the mold cleaning bracket. The transmission plate, which can slide up and down, is installed on the outside of the mold clearing bracket and is located above the pressure plate. When the upper mold moves downward, the transmission plate squeezes the pressure plate to make the air guide pipe rotate, thereby realizing multi-angle blowing of the sand mold cavity.

[0009] Preferably, it also includes a guide rod, which is fixedly installed on the lower surface of the transmission plate and passes through one end of the mold clearing bracket. A limit ring is fixedly installed at the bottom end of the guide rod, and the limit ring is located on the lower surface of the mold clearing bracket. A top spring is installed on the outside of the guide rod, and the top spring is located between the transmission plate and the mold clearing bracket.

[0010] Preferably, it also includes an adjusting nut, which is fixedly installed on the upper surface of the transmission plate; An adjusting bolt, which is threaded into the inside of an adjusting nut, is used to adjust the downward movement range of the transmission plate to adjust the rotation range of the air guide pipe.

[0011] Preferably, it also includes nozzle interfaces, which are provided in two sets and symmetrically arranged on the outside of the air guide tube, and one end of each of the multiple air blowing nozzles is respectively installed inside the multiple nozzle interfaces by threads. The three-way connector has multiple rotatable connections installed at one end of multiple air guide tubes, and an air inlet tube is fixedly installed between the multiple three-way connectors. The air extraction connector is fixedly installed on the outer wall of the mold cleaning bracket and connected to the inner cavity of the dust collection hood.

[0012] Preferably, it also includes a guide slide, which is horizontally slidably installed inside the molding frame and fixedly connected to one end of the product template, and a guide cylinder is installed between the guide slide and the molding frame.

[0013] Preferably, the apparatus further comprises a sand mold blanking table fixedly mounted on the top end of the lower mold support; A material-pushing sliding seat is horizontally slidably mounted inside the molding frame and located above the sand mold blanking table, and a material-pushing cylinder is installed between the material-pushing sliding seat and the molding frame.

[0014] Preferably, hydraulic cylinders are respectively installed between the sides of the upper molding die and the lower molding die that are far away from each other and the molding frame.

[0015] Preferably, the air blowing nozzles are configured in a "丿" shaped structure, and the upper and lower two sets of the air blowing nozzles are symmetrically distributed around the air guide pipe as the center.

[0016] The technical effects and advantages of the present invention are as follows: 1. According to the present invention, a mold cleaning support is installed at one end of the product template, and a plurality of swingable air blowing nozzles are installed inside the mold cleaning support. After the sand mold for steel castings is formed, the mold cleaning support directly enters between the upper sand mold and the lower sand mold, so as to realize the effect of cleaning immediately after molding, and simplify the cleaning process of the sand mold. Moreover, the design that the air blowing nozzles can swing during the cleaning process enables high-speed airflow to cover the entire inner cavity of the sand mold to ensure the cleaning effect. By installing a dust collection cover inside the mold cleaning support, negative pressure is synchronously applied by the dust collection cover during the purging cleaning process to extract and collect the waste sand raised by purging, so as to achieve the effect of immediate blowing and immediate cleaning, which thoroughly solves the problem of deformation of steel castings caused by waste sand during the casting process; 2. According to the present invention, the air blowing nozzle is configured in a "丿" shaped structure, and a throat pipe is arranged at the top end of the air blowing nozzle. The throat pipe and the end of the air blowing nozzle form a Laval tube structure, which further accelerates the compressed air ejected from the air blowing nozzle. By arranging two inclined air outlet grooves at the top end of the throat pipe, the inclined structure at the end of the air blowing nozzle cooperates with the inclined structure design of the air outlet grooves, so that the air blowing nozzle ejects two airflows with different directions but the same flow rate. After the two airflows enter the inner cavity of the sand mold from different directions, the gas flow speed inside the sand mold is accelerated, thereby improving the air blowing cleaning effect and ensuring that the blown-off waste sand can be quickly extracted and collected, further improving the cleaning effect of the apparatus after sand molding. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 is a schematic diagram of the internal structure of the molding frame of the present invention.

[0019] Figure 3 is a schematic structural diagram of the upper molding die, the lower molding die and the product template of the present invention.

[0020] Figure 4 is a schematic structural diagram of the upper molding die and the lower molding die of the present invention.

[0021] Figure 5 This is a schematic diagram of the mold clearing support structure of the present invention.

[0022] Figure 6 This is a side view of the mold clearing support structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the air duct structure of the present invention.

[0024] Figure 8 This is a cross-sectional schematic diagram of the air blowing nozzle structure of the present invention.

[0025] In the diagram: 1. Molding frame; 11. Sand shot machine; 12. Pusher slide; 2. Upper molding die; 3. Lower mold support; 31. Lower molding die; 32. Sand mold unloading platform; 4. Product template; 41. Guide slide; 5. Mold cleaning support; 51. Air duct; 511. T-joint; 5111. Air inlet pipe; 512. Pressure plate; 513. Tension spring; 514. Transmission plate; 515. Guide rod; 516. Adjusting nut; 517. Adjusting bolt; 52. Nozzle interface; 53. Air blowing nozzle; 531. Throat pipe; 532. Air outlet groove; 54. Dust collection hood; 541. Air extraction connector. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 8 As shown, the present invention provides a deformation-resistant positioning mold for molding cast steel parts, which is essentially a sand molding machine mold for preventing deformation of cast steel parts by cleaning the waste sand inside the sand mold cavity with air after sand molding.

[0028] In terms of specific structural installation, the structural body can be constructed according to the inventive concept of this embodiment. In this embodiment, no special limitations are imposed.

[0029] In this embodiment, a deformation-resistant positioning mold for molding cast steel parts includes: The molding frame 1 has a sand-shooting machine 11 fixedly installed at its top. The sand-shooting machine 11 is the sand-shooting unit in the existing sand-shooting molding machine, and its sand-shooting nozzle is aligned with the corresponding material inlet on the upper molding mold 2 and the lower molding mold 31. The upper mold 2 is mounted on the top of the inner part of the molding frame 1 and can slide up and down. The lower mold support 3 is fixedly installed inside the molding frame 1 and located below the upper molding die 2. A lower molding die 31 is installed inside the lower mold support 3 in a manner capable of sliding up and down. A guide sliding sleeve and a guide column are further installed between the upper molding die 2, the lower molding die 31 and the molding frame 1, so as to ensure that the upper molding die 2 and the lower molding die 31 can be precisely closed. Both the upper molding die 2 and the lower molding die 31 adopt the die head unit in the existing sand-shooting molding machine; Hydraulic cylinders are respectively installed between the sides of the upper molding die 2 and the lower molding die 31 that are away from each other and the molding frame 1; The sand mold blanking table 32 is fixedly installed at the top end of the lower mold support 3; The pusher sliding seat 12 is installed inside the molding frame 1 in a manner capable of sliding horizontally and located above the sand mold blanking table 32, and a pusher cylinder is installed between the pusher sliding seat 12 and the molding frame 1; The product template 4 is installed inside the molding frame 1 in a manner capable of sliding horizontally and located between the upper molding die 2 and the lower molding die 31; The mold cleaning support 5 is fixedly installed at one end of the product template 4. The mold cleaning support 5 is configured as a frame-shaped structure, and a plurality of air guide pipes 51 are installed inside thereof in a rotatable manner. A plurality of air blowing nozzles 53 are fixedly installed on both sides of the plurality of air guide pipes 51. The air blowing nozzles 53 are configured in a " / " shape, and the upper and lower groups of air blowing nozzles 53 are symmetrically distributed with the air guide pipe 51 as the center; The throat 531 is fixedly installed at one end of the air blowing nozzle 53; Two air outlet grooves 532 are provided, both of which are penetratingly arranged at the top end of the interior of the throat 531, and both of the two air outlet grooves 532 are configured as inclined structures. The two air outlet grooves 532 split the high-speed airflow into two, forming two high-speed airflows with slightly different directions, which generate strong turbulence and vortex in the mold cavity, greatly improving the gas exchange speed and dust suspension efficiency, and making the subsequent negative pressure extraction more thorough; The main body of the air blowing nozzle 53 is a brass or stainless steel machined part with a " / " shape structure, and the throat 531 is a hard alloy turning-milling part, which is fixed to the top end of the air blowing nozzle 53 by threads or press fitting. The inner cavities of the two together form a Laval (contraction-divergence type) flow passage. The compressed air is accelerated again when passing through the Laval flow passage, so as to improve the stripping capacity of the compressed air for the attached sand grains; The air blowing nozzle 53 is used for purging and cleaning the inner cavity of the sand mold between the upper molding die 2 and the lower molding die 31, and the dust collecting cover 54 is used for extracting and collecting the waste sand blown off from the inner cavity of the sand mold to avoid deformation of the steel casting during molding caused by the waste sand. It should be noted that the length and layout of the air blowing nozzle 53 are adaptively adjusted according to the shape of the inner cavity of the sand mold, and there is no limitation on its length and layout as long as the air blowing nozzle 53 does not collide with the inner wall of the sand mold inner cavity when swinging; The pressure plate 512 is designed with an inclined structure and is fixedly installed at one end of the air guide pipe 51. A tension spring 513 is installed between the middle of the outer side of the pressure plate 512 and the outer side wall of the mold cleaning bracket 5. The tension spring 513 is used to provide a reset force for the pressure plate 512 and the air guide pipe 51. The transmission plate 514 is slidably mounted on the outside of the mold clearing bracket 5 and located above the pressure plate 512. When the upper mold 2 moves downward, the transmission plate 514 presses the pressure plate 512 to make the air guide pipe 51 rotate and achieve multi-angle blowing of the sand mold cavity. The guide rod 515 is fixedly installed on the lower surface of the transmission plate 514 and passes through one end of the mold clearing bracket 5. A limit ring is fixedly installed at the bottom end of the guide rod 515, and the limit ring is located on the lower surface of the mold clearing bracket 5. A top spring is installed on the outside of the guide rod 515, and the top spring is located between the transmission plate 514 and the mold clearing bracket 5. The limit ring is used to cooperate with the tension spring 513 to limit the final position of the air guide tube 51. Adjusting nut 516 is fixedly installed on the upper surface of transmission plate 514; Adjusting bolt 517 is threaded into the inside of adjusting nut 516. Adjusting bolt 517 is used to adjust the downward movement range of transmission plate 514 to adjust the rotation range of air pipe 51. When cleaning sand mold cavities of different depths, by adjusting the swing range of air pipe 51 and air nozzle 53, collision between air nozzle 53 and sand mold cavity can be avoided. The nozzle interface 52 has two sets of nozzles arranged symmetrically on the outside of the air guide tube 51. One end of each of the multiple air blowing nozzles 53 is respectively installed inside the multiple nozzle interfaces 52 by threads. The three-way connector 511 is provided in multiple and is rotatably installed at one end of multiple air guide pipes 51, and an air inlet pipe 5111 is fixedly installed between the multiple three-way connectors 511. A dust collection hood 54 is fixedly installed on the inner side wall of the mold cleaning bracket 5, and multiple through holes are provided on the outer surface of the dust collection hood 54. The dust collection hood 54 is a hollow cavity made of thin steel plate or engineering plastic, and the surface is densely covered with honeycomb or slit-shaped through holes. The air extraction connector 541 is fixedly installed on the outer wall of the mold cleaning bracket 5 and connected to the inner cavity of the dust collection hood 54. The guide slide 41 is horizontally slidably installed inside the molding frame 1 and fixedly connected to one end of the product template 4. A guide cylinder is installed between the guide slide 41 and the molding frame 1.

[0030] When using the anti-deformation positioning mold for molding steel castings according to this embodiment, in the initial state of the equipment, the upper molding die 2 is located at the top end inside the molding frame 1, and the lower molding die 31 is located at the bottom end inside the lower die support 3. At this time, the product template 4 is driven to move by the guide slide seat 41 and the guide cylinder, so that the product template 4 moves to a position between the upper molding die 2 and the lower molding die 31. After the product template 4 is moved into place, the positions of the upper molding die 2, the lower molding die 31 and the product template 4 coincide. At this moment, the upper molding die 2 is controlled to move downward and the lower molding die 31 to move upward until the upper molding die 2, the lower molding die 31 and the product template 4 are combined to form a molding chamber. In this state, the feed inlets on the upper molding die 2 and the lower molding die 31 are aligned with the sand shooter 11. At this time, sand shooting is carried out through the sand shooter 11, and the upper molding die 2 and the lower molding die 31 are controlled to move to compact the sand mold. During this process, the mold head in the middle of the product template 4 is pushed upward by the lower molding die 31 into the upper molding die 2, so as to ensure the compaction degree of the sand mold. This process is a prior art disclosed in the art, and will not be elaborated herein; After the sand mold is formed, the upper molding die 2 is controlled to move upward and the lower molding die 31 to move downward, so that the product template 4 is separated from the upper molding die 2 and the lower molding die 31. At this time, the upper and lower sand molds are respectively located inside the upper molding die 2 and the lower molding die 31. Then the product template 4 is driven to move by the guide slide seat 41, so that the product template 4 slides horizontally to separate from the upper molding die 2 and the lower molding die 31. During the horizontal sliding process, the product template 4 drives the mold cleaning support 5 to move until the mold cleaning support 5 moves to a position between the upper molding die 2 and the lower molding die 31; After the mold cleaning support 5 is moved into place, the upper molding die 2 is controlled to move downward and the lower molding die 31 to move upward, so that the upper molding die 2 and the lower molding die 31 tend to combine with the mold cleaning support 5. At this moment, compressed air is injected into the air guide pipe 51 through the air inlet pipe 5111 and the three-way joint 511, the air guide pipe 51 guides the compressed air into the plurality of air blowing nozzles 53, and the air blowing nozzles guide the compressed air into the inner cavities of the upper and lower sand molds, so as to purge and clean the residual waste sand in the inner cavities of the sand molds. In this process, the design of the "丿"-shaped structure of the air guide pipe 51 and the throat pipe 531 form a Laval tube structure, which allows the compressed air to be accelerated and then ejected through the two air outlet grooves 532. The two air flows enter the inner cavity of the sand mold in different directions, which accelerates the gas flow speed inside the sand mold, thereby improving the effect of air blowing cleaning. Moreover, when the upper molding die 2 approaches the mold cleaning support 5, the edge of the lower surface of the upper molding die 2 comes into contact with the transmission plate 514 and makes the transmission plate 514 move downward. The transmission plate 514 presses the inclined pressing plate 512 downward, so that the inclined pressing plate 512 overcomes the tensile force of the tension spring 513 and drives the air guide pipe 51 to rotate, and the air guide pipe 51 drives the air blowing nozzles 53 to rotate, so that the plurality of air blowing nozzles realize movable purging of the inner cavity of the sand mold; During the blowing process inside the sand mold cavity, the air is drawn from the dust collection hood 54 through the air extraction connector 541, creating a negative pressure inside the dust collection hood 54. When the upper mold 2, the lower mold 31, and the mold cleaning support 5 tend to merge, the negative pressure effect inside the dust collection hood 54 diffuses into the sand mold cavity. At this time, the waste sand that is blown away from the sand mold cavity is drawn into the dust collection hood 54 under the action of negative pressure and then extracted and cleaned. It should be noted that during this process, the air extraction connector 541 draws air from the dust collection hood 54 through a vacuum cleaner with a filter screen, and can collect the waste sand while extracting it. After the cleaning action is completed, the upper mold 2 and the lower mold 31 are reset. Then, the product template 4 and the mold cleaning bracket 5 are driven to slide horizontally through the guide slide 41 until the mold cleaning bracket 5 is misaligned with the upper mold 2 and the lower mold 31. At this time, the upper mold 2 and the lower mold 31 are moved to merge the upper and lower sand molds. At this time, the upper and lower sand molds are located on the upper surface of the sand mold unloading platform 32. The sand mold is pushed by the pusher slide 12 so that the sand mold is transferred to the casting production line to wait for subsequent casting work.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A deformation-resistant positioning mold for molding cast steel parts, characterized in that, include: A molding frame (1) is fixedly mounted on its top with a sand-shooting machine (11). The upper mold (2) is mounted on the top of the inner part of the molding frame (1) and can slide up and down. The lower mold support (3) is fixedly installed inside the molding machine frame (1) and located below the upper molding mold (2). The lower molding mold (31) is installed inside the lower mold support (3) in a way that allows it to slide up and down. Product template (4), which can be horizontally slidably installed inside the molding frame (1) and located between the upper molding mold (2) and the lower molding mold (31); The mold cleaning support (5) is fixedly installed at one end of the product template (4). The mold cleaning support (5) is a frame structure and multiple air guide pipes (51) are rotatably installed inside. Multiple air blowing nozzles (53) are fixedly installed on both sides of the multiple air guide pipes (51). A dust collection hood (54) is fixedly installed on the inner side wall of the mold cleaning support (5), and multiple through holes are provided on the outer surface of the dust collection hood (54). The air blowing nozzles (53) are used to blow and clean the sand mold cavity between the upper mold (2) and the lower mold (31). The dust collection hood (54) is used to extract and collect the waste sand blown off the sand mold cavity to avoid the waste sand causing deformation of the cast steel parts during molding. A pressure plate (512) is provided with an inclined structure and is fixedly installed at one end of the air guide pipe (51). A tension spring (513) is installed between the middle of the outer side of the pressure plate (512) and the outer side wall of the mold cleaning bracket (5). The transmission plate (514) is slidably mounted on the outside of the mold clearing bracket (5) and located above the pressure plate (512). When the upper mold (2) moves downward, the transmission plate (514) presses the pressure plate (512) so that the air guide pipe (51) rotates to achieve multi-angle blowing of the sand mold cavity. A guide slide (41) is horizontally slidably installed inside the molding frame (1) and fixedly connected to one end of the product template (4). A guide cylinder is installed between the guide slide (41) and the molding frame (1). The air extraction connector (541) is fixedly installed on the outer wall of the mold cleaning bracket (5) and connected to the inner cavity of the dust collection hood (54); After the sand mold is formed, the upper mold (2) is moved upward and the lower mold (31) is moved downward so that the product template (4) is separated from the upper mold (2) and the lower mold (31). At this time, the upper and lower sand molds are located in the upper mold (2) and the lower mold (31) respectively. At this time, the product template (4) is driven to move through the guide slide (41) so that the product template (4) slides horizontally and separates from the upper mold (2) and the lower mold (31). During the horizontal sliding process, the product template (4) drives the mold clearing support (5) to move until the mold clearing support (5) moves between the upper mold (2) and the lower mold (31). During the process of purging the interior of the sand mold cavity, air inside the dust collection cover (54) is extracted through the air extraction joint (541) to form a negative pressure inside the dust collection cover (54). When the upper molding die (2), the lower molding die (31) and the mold cleaning support (5) tend to close, the negative pressure effect in the dust collection cover (54) spreads into the inner cavity of the sand mold. At this time, the waste sand drifting in the inner cavity of the sand mold due to purging is drawn into the dust collection cover (54) under the action of negative pressure, and then extracted and cleaned. In this process, the air extraction joint (541) extracts the air inside the dust collection cover (54) through a vacuum cleaner with a filter screen, and can collect the waste sand while extracting the waste sand.

2. The anti-deformation positioning mold for molding cast steel parts according to claim 1, characterized in that, Further comprising: A throat pipe (531) is fixedly mounted at one end of the air blowing nozzle (53); Two air outlet grooves (532) are provided, both penetrating through the inner top end of the throat pipe (531), and both of the two air outlet grooves (532) are configured as inclined structures.

3. The anti-deformation positioning mold for molding cast steel parts according to claim 1, characterized in that, Further comprising: A guide rod (515) is fixedly mounted on the lower surface of the transmission plate (514) and penetrates through one end of the mold cleaning support (5). A limit ring is fixedly mounted at the bottom end of the guide rod (515), the limit ring is located on the lower surface of the mold cleaning support (5), a top spring is mounted on the outer side of the guide rod (515), and the top spring is located between the transmission plate (514) and the mold cleaning support (5).

4. The anti-deformation positioning mold for molding cast steel parts according to claim 3, characterized in that, Further comprising: An adjusting nut (516) is fixedly mounted on the upper surface of the transmission plate (514); An adjusting bolt (517) is threadedly mounted inside the adjusting nut (516), and the adjusting bolt (517) is used for adjusting the downward movement range of the transmission plate (514) so as to adjust the rotation range of the air guide pipe (51).

5. The anti-deformation positioning mold for molding cast steel parts according to claim 1, characterized in that, Further comprising: Two sets of nozzle interfaces (52) are provided, which are symmetrically arranged on the outer side of the air guide pipe (51) in the up-down direction, and one end of each of the plurality of air blowing nozzles (53) is threadedly mounted inside each of the plurality of nozzle interfaces (52); A plurality of three-way joints (511) are provided, which are respectively rotatably mounted at one end of the plurality of air guide pipes (51), and an air inlet pipe (5111) is fixedly mounted between the plurality of three-way joints (511).

6. The anti-deformation positioning mold for molding cast steel parts according to claim 1, characterized in that, Further comprising: A sand mold blanking table (32) is fixedly mounted at the top end of the lower die support (3); A material pushing sliding seat (12) is horizontally slidably mounted inside the molding frame (1) and located above the sand mold blanking table (32), and a material pushing cylinder is mounted between the material pushing sliding seat (12) and the molding frame (1).

7. The anti-deformation positioning mold for molding cast steel parts according to claim 1, characterized in that, Further comprising: Hydraulic cylinders are respectively mounted between the sides of the upper molding die (2) and the lower molding die (31) that are away from each other and the molding frame (1).

8. The anti-deformation positioning mold for molding cast steel parts according to claim 7, characterized in that, Further comprising: The air blowing nozzles (53) are configured in a "丿" shape, and the upper and lower sets of the air blowing nozzles (53) are symmetrically distributed with the air guide pipe (51) as the center.

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