Dewaxing kettle for precision casting of parts

Abstract

The utility model relates to dewaxing kettle technical field, specifically disclose a dewaxing kettle for precision casting of parts, including kettle body and the sealing cover connected in the kettle body one side, the kettle body is equipped with drive equipment away from the sealing cover side, is equipped with dewaxing cavity in the kettle body, the opening of kettle body one side is connected the closing plate, is equipped with the support frame in dewaxing cavity, the support frame top is equipped with material rack, the support frame one end is through first pivot rotation connection closing plate, the support frame is away from the one end of closing plate and is through second pivot rotation connection kettle body, second pivot connects driving shaft, driving shaft extends to the outside connection sector gear of kettle body, the reciprocating swing of mould frame in the utility model can increase the contact area and frequency of wax mould and steam or other dewaxing medium, thereby accelerates the melting of wax mould and the discharge process of wax liquid, and reciprocating swing can promote the uniform distribution and flow of wax liquid in the mould, reduces the accumulation and residual of wax liquid in local area.

Description

Technical Field

[0001] This utility model relates to the field of dewaxing kettle technology, specifically a dewaxing kettle for precision casting of parts. Background Technology

[0002] Train components, such as engine blocks, crankcases, and transmission gears, require extremely high precision and quality. The dewaxing autoclave efficiently and precisely removes the wax pattern from the mold, providing a clean, defect-free mold for subsequent casting processes. A dewaxing autoclave is a device specifically designed for removing wax pattern from molds during the casting process. It melts and removes the wax pattern from the mold through heating, resulting in a clean mold ready for subsequent casting.

[0003] When dewaxing in existing dewaxing kettles, the steam input is partially blocked because the mold is placed on a mold rack, while some steam flows too quickly, affecting the heating of the mold. Furthermore, the uniformity of temperature and pressure inside the kettle still needs improvement. For example, in a precision casting dewaxing kettle disclosed in patent publication number CN213671709U, a mold rack is set inside the kettle body, and a mold is installed on the top of the mold rack. The mold rack is in a fixed position, which has the aforementioned problems.

[0004] To address the above issues, a dewaxing kettle for precision casting of parts is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a dewaxing kettle for precision casting of parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dewaxing autoclave for precision casting of parts includes an autoclave body and a sealing cover connected to one side of the autoclave body. A driving device is provided on the side of the autoclave body away from the sealing cover, and a dewaxing chamber is provided inside the autoclave body.

[0008] A sealing plate is connected to the opening on one side of the vessel body. A support frame is provided inside the dewaxing chamber. A material rack is provided on the top of the support frame. One end of the support frame is rotatably connected to the sealing plate via a first rotating shaft. The end of the support frame away from the sealing plate is rotatably connected to the vessel body via a second rotating shaft. The second rotating shaft is connected to a drive shaft. The drive shaft extends to the outside of the vessel body and is connected to a sector gear. A drive mechanism is provided on one side of the vessel body to drive the sector gear to reciprocate.

[0009] The vessel body is equipped with a cleaning frame for cleaning the inner wall of the vessel body. One end of the cleaning frame is connected to a central shaft, and the central shaft extends to the outside of the vessel body and connects to a drive wheel. The outer wall of the vessel body is equipped with a linkage gear that meshes with the drive wheel, and the linkage gear meshes with a sector gear.

[0010] In one alternative: the bottom of the material rack is connected to two sets of guide bars, the bottom of the guide bars is equipped with several guide wheels, and the top of the support frame is provided with a guide rail that slides with the guide bars.

[0011] In one alternative: one end of the material rack is connected to a fixing plate, the fixing plate is provided with fixing holes, and the top of the support frame is provided with a threaded groove corresponding to the fixing holes.

[0012] In one alternative: the drive mechanism includes a drive device and a drive disc installed at the power output end of the drive device. A sliding column is rotatably connected to the eccentric part of the drive disc away from the drive device. A strip rod is connected to the end of the drive shaft. The strip rod is located on the side of the sector gear away from the vessel body. The strip rod has a strip hole for the sliding column to slide.

[0013] In one alternative: the cleaning frame includes a first ring and a second ring, with an agitator and a cleaning rod connected between the first ring and the second ring; the inner wall of the second ring is connected to a central rod via a connecting rod; the central rod is connected to a central shaft; the dewaxing chamber is a cylindrical chamber; the axis of the central rod coincides with the axis of the dewaxing chamber; and the axis of the drive shaft is located at the bottom of the axis of the central rod.

[0014] In one alternative: the cleaning rod is connected to a cleaning brush that mates with the inner wall of the vessel.

[0015] In one alternative: both the first ring and the second ring are rotatably fitted with the inner wall of the vessel.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the reciprocating oscillation of the mold frame can increase the contact area and frequency between the wax mold and steam or other dewaxing media, thereby accelerating the melting of the wax mold and the discharge of wax liquid. The reciprocating oscillation can promote the uniform distribution and flow of wax liquid in the mold and reduce the accumulation and residue of wax liquid in local areas.

[0018] In this invention, the cleaning frame rotates back and forth, stirring the steam, which increases the contact area and frequency between the frame and the wax mold, thereby improving heat transfer efficiency and accelerating the melting and evaporation process of the wax mold, making dewaxing faster and more thorough. At the same time, stirring the steam helps maintain the uniformity of temperature and pressure inside the vessel, preventing local overheating or overpressure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure inside the dewaxing chamber in this utility model.

[0021] Figure 3 This is a schematic diagram of the material rack in this utility model.

[0022] Figure 4 This is a structural schematic diagram of the guide rail setting location in this utility model.

[0023] Figure 5 This is a schematic diagram of the cleaning frame in this utility model.

[0024] Figure 6 This is a partial structural schematic diagram of the present invention.

[0025] In the diagram: 11. Kettle body; 12. Sealing cover; 13. Drive device; 14. Dewaxing chamber; 15. Sealing plate; 16. Support frame; 17. Material rack; 18. Fixing plate; 19. Guide bar; 20. Guide wheel; 21. Guide rail; 22. First ring; 23. Second ring; 24. Stirring rod; 25. Cleaning rod; 26. Connecting rod; 27. Central rod; 28. Linkage gear; 29. ​​Central shaft; 30. Drive wheel; 31. Sector gear; 32. Drive shaft; 33. Strip rod; 34. Drive disc; 35. Sliding column. Detailed Implementation

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 In this embodiment, the dewaxing kettle for precision casting of parts includes a kettle body 11 and a sealing cover 12 connected to one side of the kettle body 11. A driving device 13 is provided on the side of the kettle body 11 away from the sealing cover 12, and a dewaxing chamber 14 is provided inside the kettle body 11.

[0029] A sealing plate 15 is connected to an opening on one side of the vessel body 11. A support frame 16 is provided inside the dewaxing chamber 14. A material rack 17 is provided on the top of the support frame 16. One end of the support frame 16 is rotatably connected to the sealing plate 15 via a first rotating shaft. The other end of the support frame 16 away from the sealing plate 15 is rotatably connected to the vessel body 11 via a second rotating shaft. The second rotating shaft is connected to a drive shaft 32. The drive shaft 32 extends to the outside of the vessel body 11 and is connected to a sector gear 31. A drive mechanism is provided on one side of the vessel body 11 to drive the sector gear 31 to reciprocate.

[0030] The vessel body 11 is provided with a cleaning frame for cleaning the inner wall of the vessel body 11. One end of the cleaning frame is connected to a central shaft 29. The central shaft 29 extends to the outside of the vessel body 11 and is connected to a drive wheel 30. A linkage gear 28 that meshes with the drive wheel 30 is installed on the outer wall of the vessel body 11. The linkage gear 28 meshes with a sector gear 31.

[0031] In this embodiment, the drive mechanism can drive the sector gear 31 to swing back and forth, thereby driving the second rotating shaft to swing back and forth through the drive shaft 32, causing the support frame 16 to swing back and forth, increasing the contact area and frequency between the wax mold and steam or other dewaxing media, thereby accelerating the melting of the wax mold and the discharge of wax liquid.

[0032] When the sector gear 31 swings, it can drive the linkage gear 28 to rotate back and forth. The linkage gear 28 drives the drive wheel 30 to rotate, and the central shaft 29 drives the cleaning frame to rotate back and forth, which can clean the water droplets remaining on the inner wall of the vessel 11 and stir the steam at the same time.

[0033] In another embodiment, the bottom of the material rack 17 is connected to two sets of guide bars 19, and a plurality of guide wheels 20 are installed at the bottom of the guide bars 19. The top of the support frame 16 is provided with a guide rail 21 that slides with the guide bars 19.

[0034] When the material rack 17 moves to the top of the support frame 16, the guide bar 19 engages with the guide rail 21 and slides, and the guide wheel 20 can assist the movement of the material rack 17.

[0035] In another embodiment, one end of the material rack 17 is connected to the fixing plate 18, the fixing plate 18 is provided with fixing holes, and the top of the support frame 16 is provided with a threaded groove corresponding to the fixing holes; in actual use, the support frame 16 is a frame structure to facilitate the flow of steam.

[0036] When the material rack 17 moves to the top of the support frame 16, the fixing plate 18 can be fixed to the top of the support frame 16 using bolts corresponding to the threaded groove, thus restricting the horizontal movement of the material rack 17. The cooperation between the guide rail 21 and the guide bar 19 can restrict the lateral movement of the material rack 17.

[0037] In another embodiment, the drive mechanism includes a drive device 13 and a drive disc 34 installed at the power output end of the drive device 13. A sliding column 35 is rotatably connected to the eccentric part of the drive disc 34 away from the drive device 13. A strip rod 33 is connected to the end of the drive shaft 32. The strip rod 33 is located on the side of the sector gear 31 away from the vessel body 11. The strip rod 33 is provided with a strip hole for the sliding column 35 to slide. The drive device 13 can be an existing motor and reducer combination, which can drive the drive disc 34 to work during operation.

[0038] When the drive device 13 is working, the drive disk 34 rotates, and the slide column 35 rotates around the axis of the drive disk 34. At the same time, the slide column 35 slides in the strip hole, thereby driving the strip rod 33 to swing. As the strip rod 33 swings, it drives the sector gear 31 to swing.

[0039] In another embodiment, the cleaning frame includes a first ring 22 and a second ring 23, with an agitator 24 and a cleaning rod 25 connected between the first ring 22 and the second ring 23. The inner wall of the second ring 23 is connected to a central rod 27 via a connecting rod 26. The central rod 27 is connected to a central shaft 29. The dewaxing chamber 14 is a cylindrical chamber. The axis of the central rod 27 coincides with the axis of the dewaxing chamber 14. The axis of the drive shaft 32 is located at the bottom of the axis of the central rod 27.

[0040] When the central shaft 29 rotates, the first ring 22 and the second ring 23 rotate. The cleaning rod 25 melts the wax mold in the mold through heating. Some of the wax liquid is discharged with the steam, and some wax liquid drips or condenses on the inner wall of the vessel 11 with the steam. The cleaning rod 25 can clean the inner wall of the vessel 11, reduce wax residue, and promote the discharge of wax liquid mixture. The stirring rod 24 can stir the steam above. The stirring of the steam can increase its contact area and frequency with the wax mold, thereby improving the heat transfer efficiency and helping to accelerate the melting and evaporation process of the wax mold, making dewaxing faster and more thorough. At the same time, stirring the steam can help maintain the uniformity of temperature and pressure inside the vessel and prevent local overheating or overpressure.

[0041] In another embodiment, the cleaning rod 25 is connected to a cleaning brush that cooperates with the inner wall of the vessel body 11; the cleaning rod 25 cleans the inner wall, which can promote the discharge of wax and reduce the residue of wax on the inner wall of the vessel body 11.

[0042] In another embodiment, the first ring 22 and the second ring 23 are both rotatably engaged with the inner wall of the vessel body 11; the first ring 22 and the second ring 23 reciprocate, causing the stirring rod 24 and the cleaning rod 25 to swing back and forth.

[0043] The working principle of this utility model is as follows: When the drive device 13 works, the drive disk 34 rotates, and the sliding column 35 rotates around the axis of the drive disk 34. At the same time, the sliding column 35 slides in the strip hole, thereby driving the strip rod 33 to swing. When the strip rod 33 swings, it drives the sector gear 31 to swing back and forth, thereby driving the second rotating shaft to swing back and forth through the drive shaft 32, causing the support frame 16 to swing back and forth, increasing the contact area and frequency between the wax mold and steam or other dewaxing media, thereby accelerating the melting of the wax mold and the discharge of wax liquid.

[0044] When the sector gear 31 swings, it can drive the linkage gear 28 to rotate back and forth. The linkage gear 28 drives the drive wheel 30 to rotate, and the central shaft 29 drives the cleaning frame to rotate back and forth, which can clean the water droplets remaining on the inner wall of the vessel 11 and stir the steam at the same time.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dewaxing kettle for precision casting of parts, comprising a kettle body (11) and a sealing cover (12) connected to one side of the kettle body (11), wherein a driving device (13) is provided on the side of the kettle body (11) away from the sealing cover (12), and a dewaxing chamber (14) is provided inside the kettle body (11); characterized in that A sealing plate (15) is connected to the opening on one side of the vessel body (11). A support frame (16) is provided inside the dewaxing chamber (14). A material rack (17) is provided on the top of the support frame (16). One end of the support frame (16) is rotatably connected to the sealing plate (15) through a first rotating shaft. The other end of the support frame (16) away from the sealing plate (15) is rotatably connected to the vessel body (11) through a second rotating shaft. The second rotating shaft is connected to a drive shaft (32). The drive shaft (32) extends to the outside of the vessel body (11) and is connected to a sector gear (31). A drive mechanism is provided on one side of the vessel body (11) for driving the sector gear (31) to swing back and forth. The vessel body (11) is provided with a cleaning frame for cleaning the inner wall of the vessel body (11). One end of the cleaning frame is connected to a central shaft (29). The central shaft (29) extends to the outside of the vessel body (11) and connects to a drive wheel (30). The outer wall of the vessel body (11) is equipped with a linkage gear (28) that meshes with the drive wheel (30). The linkage gear (28) meshes with a sector gear (31).

2. The precision casting dewaxing kettle for parts according to claim 1, characterized in that: The bottom of the material rack (17) is connected to two sets of guide bars (19), and several guide wheels (20) are installed at the bottom of the guide bars (19). The top of the support frame (16) is provided with a guide rail (21) that slides with the guide bars (19).

3. The precision casting dewaxing kettle for parts according to claim 1, characterized in that: The material rack (17) is connected to a fixing plate (18) at one end. The fixing plate (18) has a fixing hole, and the top of the support frame (16) has a threaded groove corresponding to the fixing hole.

4. The precision casting dewaxing kettle for parts according to claim 1, characterized in that: The drive mechanism includes a drive device (13) and a drive disc (34) installed at the power output end of the drive device (13). The drive disc (34) is rotatably connected to a sliding column (35) at an eccentric position away from the drive device (13). The end of the drive shaft (32) is connected to a strip rod (33). The strip rod (33) is located on the side of the sector gear (31) away from the vessel body (11). The strip rod (33) is provided with a strip hole for the sliding column (35) to slide.

5. The dewaxing kettle for precision casting of parts according to claim 1, characterized in that: The cleaning frame includes a first ring (22) and a second ring (23). An agitator (24) and a cleaning rod (25) are connected between the first ring (22) and the second ring (23). The inner wall of the second ring (23) is connected to a central rod (27) via a connecting rod (26). The central rod (27) is connected to a central shaft (29). The dewaxing chamber (14) is a cylindrical chamber. The axis of the central rod (27) coincides with the axis of the dewaxing chamber (14). The axis of the drive shaft (32) is located at the bottom of the axis of the central rod (27).

6. The precision casting dewaxing kettle for parts according to claim 5, characterized in that: The cleaning rod (25) is connected to a cleaning brush that fits into the inner wall of the vessel body (11).

7. The precision casting dewaxing kettle for parts according to claim 5, characterized in that: The first ring (22) and the second ring (23) are both rotatably fitted with the inner wall of the vessel body (11).

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