Investment precision casting shell dewaxing groove convenient to clean

Abstract

The utility model discloses a dewaxing groove convenient to clean for a precision investment casting shell. The dewaxing groove comprises a fixing frame, a cleaning assembly and a stabilizing assembly. According to the investment precision casting shell dewaxing tank convenient to clean, the protective cover installed in the dewaxing tank body can be arranged at the bottom of the hanging basket in a sleeving mode when the casting shell on the hanging basket is dewaxed, so that wax liquid flowing down from the interior of the casting shell is protected from the outer side, and the service life of the casting shell is prolonged. Meanwhile, the motor is driven by a second bevel gear shaft, a first bevel gear shaft, an outer gear ring driven by a gear and a connecting frame, and can also be driven by an upper scraping plate and a lower scraping plate which rotate at the upper end and the lower end of the connecting frame; residual wax liquid on the inner wall of the protective cover and the inner wall of the dewaxing tank body can be conveniently cleaned, and the stability of the upper scraping plate and the lower scraping plate in the rotating cleaning process can also be guaranteed through an upper stabilizing rod and a lower stabilizing rod which are fixedly connected to the upper scraping plate and a connecting frame and movably bound in an upper binding ring and a lower binding ring at the upper end and the lower end.

Description

Technical Field

[0001] The utility model relates to the technical field of shell dewaxing, in particular to a shell dewaxing tank for investment casting which is easy to clean. Background Art

[0002] The investment casting shell refers to a fusible model made of fusible material, on which several layers of special refractory coating are coated. After drying and hardening to form an integral shell, the model is melted away from the shell with a heater, and then the shell is placed in a sand box, and dry sand is filled around it. Finally, the mold is placed in a roasting furnace and roasted at high temperature. After the mold or shell is roasted, molten metal is poured into it to obtain a casting. When the wax inside the investment casting shell is dewaxed, it is generally heated in a dewaxing tank for dewaxing treatment.

[0003] Existing investment wax precision casting shell dewaxing tanks, such as an improved investment wax precision casting shell dewaxing tank disclosed in publication number CN217964635U, have the advantages of sealing the inner tank to prevent heat loss and providing a hanging basket at the bottom of the No. 2 connecting rod, which can adjustably dewax multiple shells and improve dewaxing efficiency. However, this dewaxing tank does not have a protective device at the bottom of its hanging basket, and when the wax water in the casting shell melts and falls on the hanging basket, splashing is likely to occur, resulting in the problem of wax water remaining in the dewaxing tank, the hanging basket and the upper end of the molding shell. For this reason, we propose a investment wax precision casting shell dewaxing tank that is easy to clean. Utility Model Content

[0004] The main purpose of the utility model is to provide a dewaxing tank for investment casting shells which is easy to clean and can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A dewaxing tank for investment casting shell that is easy to clean, comprises a fixed frame, a cleaning assembly and a stabilizing assembly, wherein the fixed frame comprises a dewaxing tank body fixedly installed at its center, the cleaning assembly comprises a protective cover movably installed at the center of the dewaxing tank body, and an upper scraper movably installed at the inner wall of the protective cover, a connecting frame is also laterally fixedly installed at the bottom of the upper scraper, a lower scraper is also fixedly installed at the bottom of the connecting frame, and the lower scraper is attached to the inner wall of the dewaxing tank body, an outer gear ring is also fixedly installed at the outer end of the connecting frame, a gear is also meshedly installed on the outer side of the outer gear ring, a first bevel gear shaft is also fixedly installed on the top of the gear, a second bevel gear shaft is also meshedly installed on the outer side of the first bevel gear shaft, and the second bevel gear shaft is movably installed in the dewaxing tank body, and a motor for driving the second bevel gear shaft is also fixedly installed at the outer end of the dewaxing tank body.

[0007] Preferably, the cleaning assembly further comprises a fixing plate fixedly installed between the two sides of the protective cover and the inner wall of the dewaxing tank body.

[0008] Preferably, the cleaning assembly further comprises a convex ring fixedly mounted on the upper end of the first bevel gear shaft, and a restraining frame movably mounted on the outer end of the convex ring, and the restraining frame is fixed to the outer end of the dewaxing tank body.

[0009] Preferably, the stabilizing assembly includes an upper stabilizing rod fixedly installed on the upper end of the upper scraper, and an upper binding ring fixedly installed on the inner wall of the dewaxing tank, and the upper stabilizing rod is movably bound in the upper binding ring.

[0010] Preferably, the stabilizing assembly further comprises a lower stabilizing rod fixedly mounted on the upper end of the connecting frame, and a lower restraining ring fixedly mounted on the inner wall of the dewaxing tank, and the lower stabilizing rod is movably restrained in the lower restraining ring.

[0011] Preferably, the fixing frame further comprises a heater and a valve fixedly mounted at the inner end and the bottom of the dewaxing tank body respectively.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, the protective cover installed in the dewaxing tank body can be sleeved on the bottom of the hanging basket when the casting shell on the hanging basket is dewaxed, so as to protect the wax water flowing down from the casting shell from the outside, so as to avoid the problem of splashing and sticking to the casting shell and the outer end of the hanging basket after it falls. At the same time, the motor can conveniently clean the wax water remaining on the inner wall of the protective cover and the inner wall of the dewaxing tank body through the second bevel gear shaft, the first bevel gear shaft and the outer gear ring and the connecting frame driven by the gear, and the upper scraper and the lower scraper rotating at the upper and lower ends of the connecting frame;

[0014] 2. In the utility model, the upper scraper and the connecting frame are movably bounded to the upper and lower binding rings and the upper and lower binding rings inside the upper and lower binding rings, which can also ensure the stability of the upper and lower scrapers during rotation and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is the internal structure diagram of the dewaxing tank of the utility model;

[0017] Figure 3 It is a side sectional view of the dewaxing tank body of the utility model;

[0018] Figure 4 For this utility model Figure 3 A is an enlarged view of the middle image.

[0019] Reference numerals:

[0020] 100, fixed frame; 101, dewaxing tank; 102, heater; 103, valve;

[0021] 200, cleaning assembly; 201, protective cover; 202, upper scraper; 203, connecting frame; 204, lower scraper; 205, outer gear ring; 206, gear; 207, first bevel gear shaft; 208, second bevel gear shaft; 209, motor; 210, fixing plate; 211, convex ring; 212, restraining frame;

[0022] 300, stabilizing assembly; 301, upper stabilizing rod; 302, upper restraining ring; 303, lower stabilizing rod; 304, lower restraining ring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Embodiment 1:

[0025] like Figure 1-4 As shown, the present embodiment provides a dewaxing tank for investment casting shell that is easy to clean, including a fixed frame 100, a cleaning assembly 200 and a stabilizing assembly 300. The fixed frame 100 includes a dewaxing tank body 101 fixedly installed at the center thereof, the fixed frame 100 also includes a heater 102 and a valve 103 fixedly installed at the inner end and the bottom of the dewaxing tank body 101 respectively, the cleaning assembly 200 includes a protective cover 201 movably installed at the center of the dewaxing tank body 101, and an upper scraper 202 movably installed at the inner wall of the protective cover 201, a connecting frame 203 is also laterally fixedly installed at the bottom of the upper scraper 202, a lower scraper 204 is also fixedly installed at the bottom of the connecting frame 203, and the lower scraper 204 is attached to the inner wall of the dewaxing tank body 101, and the outer end of the connecting frame 203 is also fixedly installed The outer gear ring 205 has a gear 206 meshingly installed on the outer side of the outer gear ring 205, a first bevel gear shaft 207 is fixedly installed on the top of the gear 206, a second bevel gear shaft 208 is meshingly installed on the outer side of the first bevel gear shaft 207, and the second bevel gear shaft 208 is movably installed in the dewaxing tank body 101, and a motor 209 for driving the second bevel gear shaft 208 is fixedly installed on the outer end of the dewaxing tank body 101, the cleaning component 200 also includes a fixed plate 210 fixedly installed between the two sides of the protective cover 201 and the inner wall of the dewaxing tank body 101, the cleaning component 200 also includes a convex ring 211 fixedly installed on the upper end of the first bevel gear shaft 207, and a restraining frame 212 movably installed on the outer end of the convex ring 211, and the restraining frame 212 is fixed to the outer end of the dewaxing tank body 101.

[0026] Specifically, the investment casting mold shell refers to a fusible model made of fusible material, on which several layers of special refractory coating are coated. After drying and hardening to form an integral mold shell, the model is melted away from the mold shell by a heater 102, and then the mold shell is placed in a sand box, and dry sand is filled around it. Finally, the casting is placed in a roasting furnace and roasted at high temperature. After the casting or mold shell is roasted, molten metal is poured into it to obtain a casting. When the wax inside the investment casting mold shell is dewaxed, it is generally heated in a dewaxing tank for dewaxing treatment. The protective cover 201 installed in the dewaxing tank body 101 can be mounted on the bottom of the hanging basket when the casting mold shell on the hanging basket is dewaxed, thereby protecting the wax water flowing down from the casting mold shell from the outside to avoid splashing after it falls. The problem of sticking to the casting shell, the outer end of the hanging basket, and the inner wall of the dewaxing tank 101 can be solved. At the same time, the motor 209 drives the outer gear ring 205 and the connecting frame 203 through the second bevel gear shaft 208, the first bevel gear shaft 207 and the gear 206. The upper scraper 202 and the lower scraper 204 rotating at the upper and lower ends of the connecting frame 203 can also conveniently clean the wax water remaining on the inner wall of the protective cover 201 and the inner wall of the dewaxing tank 101. The fixing plates 210 fixedly installed on both sides of the protective cover 201 are mainly used to ensure the fixed installation of the protective cover 201. The convex ring 211 fixedly installed on the outer end of the first bevel gear shaft 207 and the restraining frame 212 movably mounted on the outer end of the convex ring 211 are mainly used to ensure the position of the gear 206 at the lower end of the first bevel gear shaft 207.

[0027] Embodiment 2:

[0028] Based on the first embodiment, Figure 3 As shown, the stabilizing assembly 300 includes an upper stabilizing rod 301 fixedly installed on the upper end of the upper scraper 202, and an upper restraining ring 302 fixedly installed on the inner wall of the dewaxing tank body 101, and the upper stabilizing rod 301 is movably restrained in the upper restraining ring 302. The stabilizing assembly 300 also includes a lower stabilizing rod 303 fixedly installed on the upper end of the connecting frame 203, and a lower restraining ring 304 fixedly installed on the inner wall of the dewaxing tank body 101, and the lower stabilizing rod 303 is movably restrained in the lower restraining ring 304.

[0029] Specifically, the upper scraper 202 and the connecting frame 203 in the dewaxing tank body 101 are fixedly connected to the upper stabilizing rod 301 and the lower stabilizing rod 303 that are movably restrained inside the upper restraining ring 302 and the lower restraining ring 304 at the upper and lower ends, which can also ensure the stability of the upper scraper 202 and the lower scraper 204 during rotation and cleaning.

[0030] The working principle and use process of this utility model:

[0031] When the heater 102 in the dewaxing tank 101 heats the casting shell for dewaxing, the melted wax water in the casting shell will uniformly drip into the inside of the protective cover 201 at the bottom of the casting shell, and then uniformly flow into the inside of the dewaxing tank 101 through the conical mouth at the bottom of the protective cover 201, so as to avoid the problem of wax water directly dripping into the dewaxing tank 101 and splashing. At the same time, after the dewaxing in the casting shell is completed, the motor 209 at the outer end of the dewaxing tank 101 can also be started, so that the second bevel gear shaft 208 driven by the motor 209 drives the first bevel gear shaft 207 and the gear 206 to rotate, and then through the gear 206, the outer gear ring 205 and the connecting frame 203 and the upper and lower scrapers 202 and the lower scraper 204 at the upper and lower ends are driven, and under the stable restraint of the upper restraint ring 302 and the lower restraint ring 304 at the upper and lower ends, they rotate around the protective cover 201 and the dewaxing tank 101 to clean the residual wax water on the inner wall.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dewaxing tank for investment casting shell that is easy to clean, comprising a fixing frame (100), a cleaning assembly (200) and a stabilizing assembly (300), wherein the fixing frame (100) comprises a dewaxing tank body (101) fixedly installed at the center thereof, characterized in that: The cleaning assembly (200) comprises a protective cover (201) movably mounted at the center of the dewaxing tank (101), and an upper scraper (202) movably mounted at the inner wall of the protective cover (201), a connecting frame (203) being fixedly mounted laterally at the bottom of the upper scraper (202), a lower scraper (204) being fixedly mounted at the bottom of the connecting frame (203), and the lower scraper (204) being attached to the inner wall of the dewaxing tank (101), and an external toothed member being fixedly mounted at the outer end of the connecting frame (203) A ring (205) is provided, a gear (206) is meshedly mounted on the outer side of the outer gear ring (205), a first bevel gear shaft (207) is fixedly mounted on the top of the gear (206), a second bevel gear shaft (208) is meshedly mounted on the outer side of the first bevel gear shaft (207), and the second bevel gear shaft (208) is movably mounted in the dewaxing tank body (101), and a motor (209) for driving the second bevel gear shaft (208) is fixedly mounted on the outer end of the dewaxing tank body (101).

2. The easy-to-clean investment casting shell dewaxing tank according to claim 1, characterized in that: The cleaning assembly (200) further comprises a fixing plate (210) fixedly installed between the two sides of the protective cover (201) and the inner wall of the dewaxing tank body (101).

3. The easy-to-clean investment casting shell dewaxing tank according to claim 1, characterized in that: The cleaning assembly (200) further comprises a convex ring (211) fixedly mounted on the upper end of the first bevel gear shaft (207), and a restraining frame (212) movably mounted on the outer end of the convex ring (211), and the restraining frame (212) is fixed to the outer end of the dewaxing tank body (101).

4. The easy-to-clean investment casting shell dewaxing tank according to claim 1, characterized in that: The stabilizing assembly (300) comprises an upper stabilizing rod (301) fixedly mounted on the upper end of the upper scraper (202), and an upper restraining ring (302) fixedly mounted on the inner wall of the dewaxing tank (101), and the upper stabilizing rod (301) is movably restrained in the upper restraining ring (302).

5. The easy-to-clean investment casting shell dewaxing tank according to claim 1, characterized in that: The stabilizing assembly (300) further comprises a lower stabilizing rod (303) fixedly mounted on the upper end of the connecting frame (203), and a lower restraining ring (304) fixedly mounted on the inner wall of the dewaxing tank (101), and the lower stabilizing rod (303) is movably restrained in the lower restraining ring (304).

6. The easy-to-clean investment casting shell dewaxing tank according to claim 1, characterized in that: The fixed frame (100) further comprises a heater (102) and a valve (103) which are respectively fixedly mounted on the inner end and the bottom of the dewaxing tank body (101).

Images