A stepped side pouring cup for lost foam casting

Abstract

This application relates to a stepped side pouring cup for lost foam casting, belonging to the field of lost foam casting technology. It includes a horizontal sprue, with a side pouring cup body fixedly connected to one end of the top of the sprue. The side pouring cup body is filled with molten metal. An opening and closing component for blocking the flow channel of the molten metal is provided at the top of the sprue. The beneficial effect of this application is that when facing molds of different specifications or with varying pouring gate positions, the operator can loosen the locking nut, push the double-ended screw to slide along the limiting groove, and move the rigid tube and the metal corrugated pipe connected to the bottom synchronously until the rigid tube is adjusted to a position suitable for the mold's pouring gate. Then, the locking nut is tightened to complete the fixation. This adjustable structure allows the gating system to flexibly adapt to the pouring needs of various molds, greatly improving the versatility of the gating device and avoiding the need to replace the entire gating device due to changes in mold type, significantly broadening the applicability of the lost foam casting process.

Description

Technical Field

[0001] This application relates to the field of lost foam casting technology, and in particular to a stepped side pouring cup for lost foam casting. Background Technology

[0002] The gating system is a major component of the casting process. Molten metal enters from the outside through the gating system and eventually forms the casting. The gating system usually includes: pouring cup, sprue, runner, and ingate. Lost foam casting is different from other casting methods, which is solid casting. It is formed by the molten metal occupying the position of the foam mold after it has vaporized.

[0003] A search revealed a Chinese patent (authorization announcement number CN216881608U) disclosing a curved gating system for lost foam casting, comprising: a sprue, wherein the sprue is connected to the runner via a curved gating system, and the runner is connected to the mold via a slag riser; the curved gating system is located entirely below the sprue, and the lowest point of the curved gating system is horizontal to the runner. This patented technology can solve the technical problems of casting defects such as pouring interruption, cold shut, porosity, and slag inclusions in the prior art.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the lost foam casting system adopts a curved runner design, with one end connected to the pouring cup and the other end directly connected to the horizontal runner. This structure has obvious limitations: on the one hand, the spacing of the slag collection risers is relatively fixed and cannot be flexibly adjusted according to the pouring gate position of different molds, resulting in a low matching degree between the molten metal delivery path and the mold cavity; on the other hand, the number of slag collection risers is fixed and can only be adapted to castings with a single quantity requirement. When dealing with simple castings, the excess risers cause material waste. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide a stepped side pouring cup for lost foam casting.

[0006] The technical solution of this application is as follows: a stepped side pouring cup for lost foam casting includes a horizontal sprue, one end of the top of the horizontal sprue is fixedly connected to a side pouring cup body, the interior of the side pouring cup body is filled with molten metal, the top of the horizontal sprue is provided with an opening and closing component for blocking the flow channel of the molten metal, and the bottom of the horizontal sprue is provided with an adjusting component for adjusting the pouring spacing of the molten metal.

[0007] In a preferred embodiment, the adjustment assembly includes fixed frames disposed on both sides of the horizontal runner, each fixed frame having a limiting groove inside, and rigid pipes being equidistantly disposed at the bottom of the horizontal runner, with metal corrugated pipes fixedly connected to the bottom of each rigid pipe.

[0008] By adopting the above technical solution, the operator can loosen the locking nut, push the double-ended screw to slide along the limiting groove, and drive the rigid tube and the metal corrugated tube connected at the bottom to move synchronously until the rigid tube is adjusted to a position that matches the mold pouring port, and then tighten the locking nut to complete the fixation.

[0009] In a preferred embodiment, the adjustment assembly further includes a double-ended screw fixedly connected to both sides of the rigid tube. The double-ended screw is slidably connected inside the limiting groove. Both ends of the double-ended screw are threaded with locking nuts, and the locking nuts abut against the outer wall of the fixing frame.

[0010] By adopting the above technical solution, the metal corrugated pipe combines flexibility and high temperature resistance. During the adjustment of the rigid pipe, it can deform with the movement of the rigid pipe, which does not affect the sealing of the molten metal conveying channel and can adapt to the connection requirements after different spacing adjustments.

[0011] In a preferred embodiment, the opening and closing assembly includes a pipe body that is fixedly connected at equal intervals to the top of the horizontal pouring channel, a sealing plug that is slidably connected inside the pipe body, a sealing ring that is fixedly connected to the outer wall of the sealing plug, and slag collection risers that are fixedly connected at equal intervals to the bottom of the horizontal pouring channel.

[0012] By adopting the above technical solution and setting the sealing ring, the sealing performance between the slag riser and the sealing plug can be improved.

[0013] In a preferred embodiment, the opening and closing assembly further includes an electric push rod fixedly installed on the top of the pipe body. The piston rod of the electric push rod extends into the interior of the pipe body and is fixedly connected to a corresponding sealing plug. The sealing plug is in contact with the slag riser.

[0014] By adopting the above technical solution, the electric push rod can be used to push the sealing plug downward, so that the sealing plug fits tightly with the slag riser and closes the excess slag riser channel.

[0015] In a preferred embodiment, four mounting plates are fixedly connected to the inner wall of the horizontal pouring channel. The four mounting plates are arranged in a stepped manner. The top of each slag riser penetrates the interior of the mounting plate, and the bottom of the slag riser is provided with a connecting flange.

[0016] By adopting the above technical solution, and through the stepped arrangement, when the molten metal flows in the horizontal runner, an orderly stepped flow field can be formed along the mounting plate, thereby slowing down the flow speed of the molten metal.

[0017] In a preferred embodiment, the slag riser is connected to the rigid pipe via a connecting flange, the inside of the fixing frame is provided with fixing grooves, and several fixing bolts are inserted inside the fixing frame. The fixing frame is connected to the horizontal pouring channel via fixing bolts.

[0018] By adopting the above technical solution, when the components in the adjustment assembly are worn or malfunction, the fixing bracket can be separated from the horizontal runner simply by removing the fixing bolts, and the damaged components can be repaired or replaced.

[0019] Compared with the prior art, the advantages and positive effects of this application are as follows: 1. In this application, when faced with molds of different specifications or with different gate positions, the operator can loosen the locking nut, push the double-ended screw to slide along the limiting groove, and drive the rigid tube and the metal bellows connected at the bottom to move synchronously until the rigid tube is adjusted to a position that matches the mold gate. Then, the locking nut is tightened to complete the fixation. This adjustable structure allows the gating system to flexibly adapt to the gating needs of various molds, greatly improving the versatility of the gating device, avoiding the need to replace the entire gating device due to changes in mold type, and significantly broadening the application scope of the lost foam casting process.

[0020] 2. In this application, when casting simple castings does not require too many slag-collecting risers, a portion of the electric push rod can be controlled to push the sealing plug downwards, so that the sealing plug fits tightly with the slag-collecting risers, closing the excess slag-collecting riser channels. This on-demand opening and closing design avoids the problem of incomplete slag removal caused by insufficient risers in complex castings, and also prevents material waste caused by excess risers in simple castings. Attached Figure Description

[0021] Figure 1 This application provides an overall perspective view of a stepped side pouring cup for lost foam casting; Figure 2 This application provides an internal sectional view of a stepped lateral pouring cup for lost foam casting; Figure 3 This application provides a bottom view of a stepped side pouring cup for lost foam casting; Figure 4 This application provides a schematic diagram of an opening and closing assembly for a stepped side pouring cup used in lost foam casting; Figure 5 This application provides a stepped side pouring cup for lost foam casting. Figure 3 Enlarged view of point A in the middle.

[0022] Legend: 1. Horizontal runner; 2. Adjustment component; 21. Fixing bracket; 22. Limiting groove; 23. Double-ended screw; 24. Locking nut; 25. Metal bellows; 26. Rigid pipe; 3. Connecting flange; 4. Mounting plate; 5. Opening and closing component; 51. Electric push rod; 52. Sealing ring; 53. Sealing plug; 54. Pipe body; 55. Slag riser; 6. Side pouring cup body; 7. Fixing groove; 8. Fixing bolt. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Reference Figure 1-5 A stepped side pouring cup for lost foam casting includes a sprue 1, a side pouring cup body 6 fixedly connected to one end of the top of the sprue 1, the side pouring cup body 6 being filled with molten metal, an opening and closing component 5 for blocking the flow channel of molten metal being provided at the top of the sprue 1, and an adjusting component 2 for adjusting the pouring spacing of molten metal being provided at the bottom of the sprue 1.

[0025] Specifically, the adjustment component 2 includes fixed brackets 21 on both sides of the runner 1. Each fixed bracket 21 has a limiting groove 22 inside. Rigid tubes 26 are equidistantly arranged at the bottom of the runner 1, and metal bellows 25 are fixedly connected to the bottom of each rigid tube 26. When dealing with molds of different specifications or with varying pouring gate positions, the operator can loosen the locking nut 24 and push the double-ended screw 23 to slide along the limiting groove 22, causing the rigid tubes 26 and the bottom-connected metal bellows 25 to move synchronously until the rigid tubes 26 are adjusted to a position suitable for the mold pouring gate. Then, the locking nut 24 is tightened to complete the fixation. This adjustable structure allows the gating system to flexibly adapt to the pouring needs of various molds, significantly improving the versatility of the gating device and avoiding the need to replace the entire gating device due to changes in mold type. This significantly broadens the applicability of the lost foam casting process. The adjustment component 2 also includes double-ended screws 23 fixedly connected to both sides of the rigid tubes 26. The double-ended screws 23 slide... Connected inside the limiting groove 22, both ends of the double-ended screw 23 are threaded with locking nuts 24. The locking nuts 24 abut against the outer wall of the fixing frame 21. Through the setting of the metal bellows 25, it has both flexibility and high temperature resistance. During the adjustment of the rigid pipe 26, it can move and deform with the rigid pipe 26, which does not affect the sealing of the molten metal conveying channel and can adapt to the connection requirements after different spacing adjustments, further ensuring the practicality of spacing adjustment. The opening and closing component 5 includes a pipe body 54 that is fixedly connected to the top of the horizontal sprue 1 at equal intervals. The inside of the pipe body 54 is slidably connected with a sealing plug 53. The outer wall of the sealing plug 53 is fixedly connected with a sealing ring 52. The bottom of the horizontal sprue 1 is fixedly connected with slag collection risers 55 at equal intervals. When casting simple castings that do not require too many slag collection risers 55, the electric push rod 51 can be controlled to push the sealing plug 53 downward, so that the sealing plug 53 and the slag collection riser 55 are tightly fitted, and the excess slag collection riser 55 channels are closed.

[0026] Specifically, the opening and closing assembly 5 also includes an electric push rod 51 fixedly installed on the top of the tube body 54. The piston rod of the electric push rod 51 extends into the interior of the tube body 54 and is fixedly connected to the corresponding sealing plug 53. The sealing plug 53 fits against the slag collection riser 55. This stepped structure changes the single flow path of the molten metal in the traditional straight pipe gating system, allowing the molten metal to form an orderly stepped flow field along the mounting plate 4 when flowing in the horizontal gating 1. This slows down the flow rate of the molten metal and avoids problems such as incomplete vaporization of the foam mold and the generation of vaporization residue mixed into the casting due to excessively fast flow rate of the molten metal, or cavity deformation caused by impact on the mold. The interior of the horizontal gating 1 The wall is fixedly connected with four mounting plates 4, which are arranged in a stepped manner. The top of the slag riser 55 passes through the interior of the mounting plate 4, and the bottom of the slag riser 55 is provided with a connecting flange 3. The slag riser 55 is connected to the rigid pipe 26 through the connecting flange 3. The inside of the fixing frame 21 is provided with fixing grooves 7. When the components in the adjusting assembly 2 are worn or malfunction, the fixing frame 21 can be separated from the horizontal pouring channel 1 by simply removing the fixing bolts 8, and the damaged components can be repaired or replaced without disassembling the entire pouring system. Several fixing bolts 8 are inserted inside the fixing frame 21, and the fixing frame 21 is connected to the horizontal pouring channel 1 through the fixing bolts 8.

[0027] Working principle: First, multiple mounting plates 4 in the horizontal runner 1 are arranged in a stepped manner, which can change the single flow path of molten metal in the traditional straight pipe runner. When the molten metal flows in the horizontal runner 1, it can form an orderly stepped flow field along the mounting plates 4, which slows down the flow speed of the molten metal and avoids incomplete aeration of the foam mold and the generation of aerated residue mixed into the casting due to excessive flow speed of the molten metal. When facing molds of different specifications or with different pouring gate positions, the operator can loosen the locking nut 24 and push the double-ended screw 23 to slide along the limiting groove 22, which drives the rigid pipe 26 and the metal corrugated pipe 25 connected at the bottom to move synchronously until the rigid pipe 26 is adjusted to a position that matches the pouring gate of the mold. Then, tighten the locking nut 24 to complete the fixation. When casting simple castings that do not require too many slag risers 55, some electric push rods 51 can be controlled to push the sealing plug 53 downward, so that the sealing plug 53 fits tightly with the slag riser 55 and closes the excess slag riser 55 channels.

[0028] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A stepped lateral gating cup for use in lost foam casting, comprising a runner (1), characterized in that: One end of the top of the horizontal gating channel (1) is fixedly connected to the side pouring cup body (6), the side pouring cup body (6) is filled with molten metal, the top of the horizontal gating channel (1) is provided with an opening and closing component (5) for blocking the flow channel of molten metal, and the bottom of the horizontal gating channel (1) is provided with an adjusting component (2) for adjusting the pouring spacing of molten metal.

2. A stepped lateral pouring cup for use in lost foam casting according to claim 1, characterized in that: The adjustment component (2) includes a fixed frame (21) set on both sides of the horizontal runner (1). Each fixed frame (21) has a limit groove (22) inside. Hard pipes (26) are equidistantly arranged at the bottom of the horizontal runner (1). Each hard pipe (26) is fixedly connected to a metal corrugated pipe (25).

3. A stepped lateral pouring cup for use in lost foam casting according to claim 2, characterized in that: The adjustment assembly (2) also includes a double-ended screw (23) fixedly connected to both sides of the rigid tube (26). The double-ended screw (23) is slidably connected inside the limiting groove (22). Both ends of the double-ended screw (23) are threaded with locking nuts (24). The locking nuts (24) abut against the outer wall of the fixing frame (21).

4. A stepped lateral pouring cup for use in lost foam casting according to claim 2, characterized in that: The opening and closing assembly (5) includes a pipe body (54) fixedly connected at equal intervals to the top of the horizontal pouring channel (1). A sealing plug (53) is slidably connected inside the pipe body (54). A sealing ring (52) is fixedly connected to the outer wall of the sealing plug (53). A slag riser (55) is fixedly connected at equal intervals to the bottom of the horizontal pouring channel (1).

5. A stepped lateral pouring cup for use in lost foam casting according to claim 4, characterized in that: The opening and closing assembly (5) also includes an electric push rod (51) fixedly installed on the top of the pipe body (54). The piston rod of the electric push rod (51) extends into the interior of the pipe body (54) and is fixedly connected to the corresponding sealing plug (53). The sealing plug (53) is in contact with the slag riser (55).

6. A stepped lateral pouring cup for use in lost foam casting according to claim 4, characterized in that: The inner wall of the horizontal pouring channel (1) is fixedly connected to four mounting plates (4), which are arranged in a stepped manner. The top of the slag riser (55) penetrates the interior of the mounting plate (4), and the bottom of the slag riser (55) is provided with a connecting flange (3).

7. A stepped lateral pouring cup for use in lost foam casting according to claim 4, characterized in that: The slag riser (55) is connected to the rigid pipe (26) via a connecting flange (3). The inside of the fixing frame (21) is provided with fixing grooves (7). Several fixing bolts (8) are inserted inside the fixing frame (21). The fixing frame (21) is connected to the horizontal pouring channel (1) via fixing bolts (8).

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