Dewaxing device for investment casting wax mould

By designing a dewaxing device for the filter cleaning component and the auxiliary placement component, the problems of wax residue on the filter plate and difficulty in wax recovery were solved, achieving efficient cleaning of wax residue and stable dewaxing process of the mold.

CN224115114UActive Publication Date: 2026-04-14FALCON AEROTECH LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing investment casting process, wax residue is easily left on the filter plate of the dewaxing device, and because most of them are closed structures, the wax is difficult to recycle.

Method used

A dewaxing device including a filtration and cleaning component and an auxiliary placement component was designed. The device cleans wax stains through an inclined filter plate and a scraper structure, and assists the dewaxing process with a vibration motor and a heating plate. Combined with a cylinder and baffle structure, it achieves efficient cleaning of wax stains and stable placement of the mold.

Benefits of technology

It effectively reduces wax residue, improves filtration efficiency, enables wax recycling, and ensures the stability of the mold during the dewaxing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dewaxing device for an investment casting wax mold, which belongs to the technical field of investment casting and comprises a bin body, a vibration motor, a temperature sensor, a heating plate, a cover plate, a placing plate, a casting mold, a filtering and cleaning component and an auxiliary placing component. The temperature sensor is fixedly installed on the inner wall of the bin body, the heating plate is fixedly installed on the outer wall of the bin body, the cover plate is rotatably connected to the port of the bin body, the auxiliary placement assembly is installed on the upper portion of the placement plate, and the arranged filtering and cleaning assembly has the capacity of effectively removing wax stains on a filter plate, so that the residual wax stains are remarkably reduced; according to the dewaxing device, the problem that wax is difficult to recover after dewaxing due to the fact that the dewaxing device is mostly of a closed structure is solved, meanwhile, the baffle can be driven to move upwards along with opening of the air cylinder, a user can conveniently remove wax stains, and the problem that wax is difficult to recover after dewaxing is further avoided.
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Description

Technical Field

[0001] This utility model relates to a wax pattern dewaxing device for investment casting, belonging to the field of investment casting technology. Background Technology

[0002] Investment casting, also known as lost-wax casting, involves creating a wax model of the part to be cast using wax. Then, a clay model is coated with clay slurry. After the clay model dries, it is placed in hot water to melt the wax model inside. The clay model with the melted wax model is then removed and fired to become a ceramic mold. Molten metal is then poured into the mold through the gating gate. After cooling, the desired part is made.

[0003] Currently, hot water is commonly used for dewaxing, followed by water-wax separation through a filter plate, leaving the wax on the filter plate after demolding. However, this method can easily result in excessive wax residue on the filter plate, which is difficult to clean. Furthermore, since most dewaxing devices are closed systems, the dewaxed wax is difficult to recycle.

[0004] Therefore, a new wax mold dewaxing device for investment casting is provided to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wax removal device for investment casting to solve the above problems. The filter cleaning component can clean the wax residue on the filter plate, thereby reducing the accumulation of wax residue and improving the filtration effect of the filter plate.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: a wax dewaxing device for investment casting includes a chamber, a vibration motor, a temperature sensor, a heating plate, a cover plate, a placement plate, and a casting mold. It also includes a filter cleaning component and an auxiliary placement component. The vibration motor is fixedly installed on the outer wall of the chamber, the temperature sensor is fixedly installed on the inner wall of the chamber, the heating plate is fixedly installed on the outer wall of the chamber, the cover plate is rotatably connected to the port of the chamber, the placement plate is fixedly installed inside the chamber, and a drain outlet is provided inside the placement plate. The casting mold is placed on the upper part of the placement plate, the filter cleaning component is located inside the chamber, and the auxiliary placement component is installed on the upper part of the placement plate.

[0007] Preferably, the inclined filter plate allows water to flow off the filter plate while leaving wax or other substances on it. The inclined shape causes the detached wax to accumulate in one place. The inclined filter plate is fixedly installed inside the chamber, and a scraper slides on the upper part of the inclined filter plate. Fixed blocks are fixedly installed on the side wall of the chamber, and screw rods rotatably connect the fixed blocks.

[0008] Preferably, the lead screw is configured to drive the scraper to move after being opened. The scraper is internally screwed to the outer surface of the lead screw. A drive shaft is rotatably connected inside the fixed block. One end of the drive shaft is fixedly connected to one end of the lead screw. An installation plate is fixedly installed on the outer wall of the silo. A motor is fixedly installed on the upper part of the installation plate. The output end of the motor is fixedly connected to one end of the drive shaft.

[0009] Preferably, the square slot is designed to facilitate the user to clean the wax residue after demolding. The side wall of the chamber has a square slot, and a baffle slides outside the square slot. A T-shaped plate is fixedly installed outside the baffle. A connecting limit plate is fixedly installed on the side wall of the chamber. A cylinder is fixedly installed on the upper part of the connecting limit plate, and the movable end of the cylinder is fixedly connected to the upper end of the T-shaped plate.

[0010] Preferably, the drain outlet is provided for user drainage, the side wall of the tank is provided with a drain outlet, a baffle plate slides outside the drain outlet, a connecting side rod is fixedly installed outside the baffle plate, one end of the connecting side rod is fixedly connected to the outer surface of the baffle plate, a connecting block is fixedly installed on the side wall of the tank, a guide rod is fixedly installed between the connecting blocks, and the side wall of the baffle plate slides on the outer surface of the guide rod.

[0011] Preferably, the mounting rod is designed to facilitate the sliding of the stop bar. The auxiliary placement component includes a connecting limit block fixedly mounted on the upper part of the placement plate, a mounting rod fixedly mounted between the connecting limit blocks, a stop bar sliding between the mounting rods, and a bolt rotatably connected to the upper part of the stop bar.

[0012] Preferably, the limiting plate is used to limit the mold to be dewaxed, the upper part of the mounting rod has a threaded groove, the lower part of the bolt is screwed into the threaded groove, and the limiting plate is provided on the outside of the baffle.

[0013] Preferably, the spring is provided so that the limiting plate can fit and be fixed more tightly to the mold, a guide rod slides between the inner and outer walls of the stop rod, one end of the guide rod is fixedly connected to the back of the limiting plate, and a spring is fixedly installed on the side wall of the stop rod, and the spring is fixedly connected to the side wall of the limiting plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. The filter cleaning component can clean the wax residue on the filter plate, reducing the amount of wax residue and thus alleviating the problem of difficult wax recycling caused by the fact that most dewaxing devices are closed. At the same time, it can also move the baffle plate upward to facilitate the user to remove the wax residue, thereby avoiding the problem of difficult wax recycling caused by the fact that most dewaxing devices are closed.

[0016] 2. The auxiliary placement component is designed to reduce the shaking of the mold during dewaxing by limiting its position, thus making the mold more stable during dewaxing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a side view of the structure of this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] Figure 5 For practical purposes Figure 2 Enlarged view of point A in the image.

[0022] In the diagram: 1. Chamber body; 2. Filter cleaning assembly; 201. Inclined filter plate; 202. Scraper; 203. Fixing block; 204. Lead screw; 205. Drive shaft; 206. Motor; 207. Baffle; 208. Cylinder; 209. Water baffle; 210. Connecting side rod; 3. Auxiliary placement assembly; 301. Limiting block; 302. Mounting rod; 303. Bolt; 304. Limiting plate; 305. Stop bar; 306. Spring; 4. Vibration motor; 5. Temperature sensor; 6. Heating plate; 7. Cover plate; 8. Placement plate; 9. Mold. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 As shown, a wax dewaxing device for investment casting includes a chamber 1, a vibration motor 4, a temperature sensor 5, a heating plate 6, a cover plate 7, a placement plate 8, and a casting mold 9. It also includes a filter cleaning component 2 and an auxiliary placement component 3. The vibration motor 4 is fixedly installed on the outer wall of the chamber 1, the temperature sensor 5 is fixedly installed on the inner wall of the chamber 1, the heating plate 6 is fixedly installed on the outer wall of the chamber 1, the cover plate 7 is rotatably connected to the port of the chamber 1, the placement plate 8 is fixedly installed inside the chamber 1, and a drain outlet is provided inside the placement plate 8. The casting mold 9 is placed on the upper part of the placement plate 8, the filter cleaning component 2 is located inside the chamber 1, and the auxiliary placement component 3 is installed on the upper part of the placement plate 8. The filter cleaning component can effectively remove residual wax stains on the filter plate and reduce the accumulation of wax stains.

[0025] like Figures 1-4As shown, an inclined filter plate 201 is fixedly installed inside the chamber 1. A scraper 202 slides on the upper part of the inclined filter plate 201. A fixing block 203 is fixedly installed on the side wall of the chamber 1. A lead screw 204 is rotatably connected between the fixing blocks 203. The scraper 202 is screwed to the outer surface of the lead screw 204. A drive shaft 205 is rotatably connected inside the fixing block 203. One end of the drive shaft 205 is fixedly connected to one end of the lead screw 204. An installation plate is fixedly installed on the outer wall of the chamber 1. A motor 206 is fixedly installed on the upper part of the installation plate. The output end of the motor 206 is fixedly connected to one end of the drive shaft 205. A square slot is opened on the side wall of the chamber 1. A baffle 207 slides outside the square slot. The baffle 207 is fixedly fixed outside. A T-shaped plate is fixedly installed. A connecting limiting plate 304 is fixedly installed on the side wall of the chamber 1. A cylinder 208 is fixedly installed on the upper part of the connecting limiting plate 304. The movable end of the cylinder 208 is fixedly connected to the upper end of the T-shaped plate. A drain outlet is opened on the side wall of the chamber 1. A baffle plate 209 slides outside the drain outlet. A connecting side rod 210 is fixedly installed outside the baffle plate 209. One end of the connecting side rod 210 is fixedly connected to the outer surface of the baffle plate 207. Connecting blocks are fixedly installed on the side wall of the chamber 1. Guide rods are fixedly installed between the connecting blocks. The side wall of the baffle plate 209 slides on the outer surface of the guide rod. When the user performs dewaxing, the mold 9 to be dewaxed is placed on the placement plate 8. At this time, hot water is discharged into the chamber 1. As hot water enters, the temperature sensor 5 detects the water temperature. Dewaxing is most effective when the hot water temperature is between 85 and 95 degrees Celsius. When the temperature sensor 5 detects a drop in the hot water temperature, the user can reheat the water by turning on the heating plate 6 to reach the optimal temperature. After the hot water filling is complete, the cover plate 7 is rotated to close the port of the chamber 1, and the vibration motor 4 is turned on, causing the chamber 1 to vibrate. This vibration accelerates the dewaxing process of the mold 9. Once dewaxing is complete, the wax residue remains on the filter plate. After separation and filtration are complete, the cylinder 208 is activated. This activation moves the T-shaped plate, which in turn moves the baffle 207. The movement of baffle 207 causes the connecting side plate to move, which in turn moves the baffle 209. As the baffle 209 moves, the filtered water flows out through the drain. Simultaneously, the movement of baffle 207 opens the square slot. When the square slot opens, motor 206 is activated, which in turn drives the drive shaft 205 to rotate. The rotation of the drive shaft 205 drives the lead screw 204 to rotate, which in turn drives the scraper 202 to move. As the scraper 202 moves, it can clean the wax residue on the filter plate, reducing wax residue and thus alleviating the problem that the wax after dewaxing is difficult to recycle because most dewaxing devices are closed.

[0026] like Figures 1-5As shown, the auxiliary placement component 3 includes connecting limiting blocks 301 fixedly installed on the upper part of the placement plate 8. Mounting rods 302 are fixedly installed between the connecting limiting blocks 301. A stop rod 305 slides between the mounting rods 302. A bolt 303 is rotatably connected to the upper part of the stop rod 305. A threaded groove is opened on the upper part of the mounting rod 302, and the lower part of the bolt 303 is screwed into the threaded groove. A limiting plate 304 is provided outside the stop rod 305. A guide rod slides between the inner and outer walls of the stop rod 305, and one end of the guide rod is fixed to the back of the limiting plate 304. A spring 306 is fixedly installed on the side wall of the stop rod 305. The spring 306 is fixedly connected to the side wall of the limiting plate 304. As the mold 9 is placed in, the user can adjust the limit according to its width. By loosening the bolt 303, the stop rod 305 can move and adjust on the mounting rod 302. After the adjustment is completed, the bolt 303 is tightened to fix the stop rod 305 outside the mounting rod 302, so that the limiting plate 304 is located on both sides of the mold 9, thereby reducing the phenomenon of the mold 9 moving when the vibration motor 4 is turned on.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lost-wax mold dewaxing device for investment casting, comprising a housing (1), a vibration motor (4), a temperature sensor (5), a heating plate (6), a cover plate (7), a placement plate (8), and a casting mold (9), characterized in that; It also includes a filter cleaning component (2) and an auxiliary placement component (3). The vibration motor (4) is fixedly installed on the outer wall of the chamber (1). The temperature sensor (5) is fixedly installed on the inner wall of the chamber (1). The heating plate (6) is fixedly installed on the outer wall of the chamber (1). The cover plate (7) is rotatably connected to the port of the chamber (1). The placement plate (8) is fixedly installed inside the chamber (1). The placement plate (8) has a drain hole inside. The mold (9) is placed on the upper part of the placement plate (8). The filter cleaning component (2) is set inside the chamber (1). The auxiliary placement component (3) is installed on the upper part of the placement plate (8).

2. The wax pattern dewaxing device for investment casting according to claim 1, characterized in that: An inclined filter plate (201) is fixedly installed inside the chamber (1). A scraper (202) slides on the upper part of the inclined filter plate (201). A fixing block (203) is fixedly installed on the side wall of the chamber (1). A screw rod (204) is rotatably connected between the fixing blocks (203).

3. The wax pattern dewaxing device for investment casting according to claim 2, characterized in that: The scraper (202) is internally screwed to the outer surface of the lead screw (204). The fixed block (203) is internally rotatably connected to a drive shaft (205). One end of the drive shaft (205) is fixedly connected to one end of the lead screw (204). An installation plate is fixedly installed on the outer wall of the chamber (1). A motor (206) is fixedly installed on the upper part of the installation plate. The output end of the motor (206) is fixedly connected to one end of the drive shaft (205).

4. The wax pattern dewaxing device for investment casting according to claim 3, characterized in that: The side wall of the silo (1) is provided with a square slot, and a baffle (207) slides outside the square slot. A T-shaped plate is fixedly installed on the outside of the baffle (207). A connecting limiting plate (304) is fixedly installed on the side wall of the silo (1). A cylinder (208) is fixedly installed on the upper part of the connecting limiting plate (304). The movable end of the cylinder (208) is fixedly connected to the upper end of the T-shaped plate.

5. The wax pattern dewaxing device for investment casting according to claim 4, characterized in that: The side wall of the silo (1) is provided with a water outlet, and a baffle plate (209) slides outside the water outlet. A connecting side rod (210) is fixedly installed outside the baffle plate (209). One end of the connecting side rod (210) is fixedly connected to the outer surface of the baffle plate (207). A connecting block is fixedly installed on the side wall of the silo (1), and a guide rod is fixedly installed between the connecting blocks. The side wall of the baffle plate (209) slides on the outer surface of the guide rod.

6. The wax pattern dewaxing device for investment casting according to claim 1, characterized in that: The auxiliary placement component (3) includes a connecting limit block (301) fixedly installed on the upper part of the placement plate (8), an installation rod (302) fixedly installed between the connecting limit blocks (301), a stop bar (305) sliding between the installation rods (302), and a bolt (303) rotatably connected to the upper part of the stop bar (305).

7. The wax pattern dewaxing device for investment casting according to claim 6, characterized in that: The upper part of the mounting rod (302) is provided with a threaded groove, the lower part of the bolt (303) is screwed into the threaded groove, and the outside of the stop rod (305) is provided with a limit plate (304).

8. The wax pattern dewaxing device for investment casting according to claim 7, characterized in that: A guide rod slides between the inner and outer walls of the stop rod (305). One end of the guide rod is fixedly connected to the back of the limiting plate (304). A spring (306) is fixedly installed on the side wall of the stop rod (305). The spring (306) is fixedly connected to the side wall of the limiting plate (304).