Wax mould shell slurry cooling device
By rotating the drive member to drive the material barrel and combining the heat exchange of the heat exchange pipe, the problem of unstable state of the refractory material in the shell making process is solved, uniform coverage of the refractory layer is achieved, and the quality of the mold shell is improved.
Patent Information
- Application Number
- CN202422339972.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In the prior art, it is difficult for refractory materials to remain in a suitable state during the shell making process, which affects the quality of the mold shell and causes problems such as burrs and bulging on the surface of the casting.
A wax mold shell slurry cooling device is designed, including a charging assembly and a cooling assembly. The barrel is driven to rotate through a rotating drive member, and heat exchange is carried out in combination with a heat exchange tube to keep the refractory slurry at a specified temperature state to ensure uniform coating of the refractory material.
The stable temperature control of the refractory slurry is achieved, ensuring uniform coverage of the refractory layer on the outer wall of the wax tree and improving the shell quality.
Smart Images
Figure CN223114111U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of investment casting, in particular to a cooling device for wax mold shell slurry. Background Technique
[0002] Investment casting (also called lost-wax casting) is a metal casting process, which is famous for its high dimensional accuracy and surface finish, and is very suitable for manufacturing complex shapes. The basic process of investment casting is roughly as follows: making wax molds, wax repairing, tree assembling, shell making, dewaxing, preheating and pouring, cooling and cleaning, and post-treatment. Investment casting is very suitable for producing small and medium-sized parts with complex geometries and is widely used in industries such as aerospace, automotive, and medical equipment.
[0003] Among them, in the shell-making process, it means coating a refractory material on the wax tree to form a mold shell on the wax tree. The refractory material is usually a liquid with a certain viscosity, and its viscosity, coating weight, and particle size of the slurry powder have an important impact on the quality of the obtained mold shell, and ultimately affect the forming quality of the obtained casting, such as whether there are many burrs, bulges, protrusions, etc. on the surface of the casting. Therefore, how to keep the refractory material stably in a suitable state directly affects the quality of the refractory material coated on the wax tree to form a mold shell. In view of this, the cooling device for wax mold shell slurry of the present application is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a cooling device for wax mold shell slurry that can keep the refractory material in a suitable state to improve the shell-making quality.
[0005] The purpose of the utility model is realized by the following technical solutions:
[0006] A cooling device for wax mold shell slurry, comprising:
[0007] A loading assembly, the loading assembly includes a base, a material bucket and a rotary driving member, the rotary driving member is arranged in the base, the material bucket is rotatably arranged on the base, and the material bucket is connected to the output shaft of the rotary driving member; and
[0008] A cooling assembly, the cooling assembly includes a support frame, a heat exchange frame and a plurality of heat exchange tubes, the support frame is arranged on the base, one end of the heat exchange frame is arranged on the support frame, the other end of the heat exchange frame extends into the material bucket in a non-contact manner, a first flow channel and a second flow channel are arranged in the heat exchange frame, the heat exchange tubes are arranged on the heat exchange frame at intervals, and one end of each heat exchange tube is communicated with the first flow channel, and the other end of each heat exchange tube is communicated with the second flow channel.
[0009] Optionally, a placing table is further provided on a side of the base away from the support frame, and a height of the placing table is greater than a height of the material barrel.
[0010] Optionally, a cross plate is adjustably provided on the support frame, and the heat exchange frame is arranged on the cross plate.
[0011] Optionally, a clamping table is arranged on a top of the heat exchange frame, a clamping groove is formed on the cross plate, and the heat exchange frame is located in the clamping groove so that the clamping table abuts against the clamping groove.
[0012] Optionally, the cooling assembly further includes a cover plate, a water inlet hole and a water outlet hole are formed on the cover plate, and when the cover plate is buckled on the cross plate, the water inlet hole is communicated with the first flow channel, and the water outlet hole is communicated with the second flow channel.
[0013] Optionally, a sealing ring is respectively arranged at one end of the first flow channel and the second flow channel close to the cover plate.
[0014] Optionally, a jack is formed on the support frame, the cross plate penetrates through the jack, a hand wheel is screwed on the support frame, one end of the hand wheel extends into the jack, and the hand wheel is used for pressing the cross plate tightly.
[0015] Optionally, a minimum distance between any two adjacent heat exchange tubes is 10 mm to 20 mm.
[0016] Optionally, the heat exchange tube is welded to the heat exchange frame.
[0017] Optionally, a rounded corner portion is arranged on an outer side wall of the heat exchange tube.
[0018] Compared with the prior art, the utility model has at least the following advantages:
[0019] By introducing ice water into one of the first flow channel and the second flow channel and flowing out from the other, the refractory slurry in full contact with each heat exchange tube is stably maintained in a specified temperature state. In particular, by driving the refractory slurry to rotate through the rotation of the material barrel and cooperating with the heat exchange effect of the heat exchange tube, the refractory slurry can be quickly adjusted to a required temperature, so that the refractory slurry is stably in a proper mixing degree and temperature. When the wax tree is placed in the material barrel, a refractory layer with a uniform thickness can be covered on an outer side wall of the wax tree. Description of the Drawings
[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for use in the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.
[0021] Figure 1 Structural schematic diagram of the wax mold shell slurry cooling device according to an embodiment of the present utility model;
[0022] Figure 2 Cross-sectional structural schematic diagram of the heat exchange frame and heat exchange tube according to an embodiment of the present utility model;
[0023] Figure 3 Partial structural schematic diagram of the cooling component according to an embodiment of the present utility model;
[0024] Figure 4 is Figure 1 Partial structural schematic diagram of the wax mold shell slurry cooling device shown.
[0025] Explanation of reference numerals:
[0026] 10. Wax mold shell slurry cooling device; 100. Loading component; 200. Cooling component; 110. Base; 120. Material bucket; 130. Rotary driving part; 210. Support frame; 220. Heat exchange frame; 230. Heat exchange tube; 221. First flow channel; 222. Second flow channel; 140. Resting table; 240. Horizontal plate; 250. Clamping platform; 241. Card slot; 260. Cover plate; 261. Water inlet hole; 262. Water outlet hole; 270. Sealing ring; 211. Insertion hole; 280. Handwheel; 231. Rounded corner part. Detailed implementation manners
[0027] To facilitate the understanding of the present utility model, the following will describe the present utility model more comprehensively with reference to the relevant attached drawings. The preferred embodiments of the present utility model are shown in the attached drawings.
[0028] As Figure 1 and Figure 2As shown, a cooling device 10 for a wax mold shell slurry includes a loading component 100 and a cooling component 200. The loading component 100 includes a base 110, a material bucket 120, and a rotary driving member 130. The rotary driving member 130 is disposed within the base 110. The material bucket 120 is rotatably disposed on the base 110, and the material bucket 120 is connected to the output shaft of the rotary driving member 130. The cooling component 200 includes a support frame 210, a heat exchange frame 220, and a plurality of heat exchange tubes 230. The support frame 210 is disposed on the base 110. One end of the heat exchange frame 220 is disposed on the support frame 210, and the other end of the heat exchange frame 220 extends into the material bucket 120 in a non-contact manner. A first flow channel 221 and a second flow channel 222 are defined within the heat exchange frame 220. Each of the heat exchange tubes 230 is spaced apart and disposed on the heat exchange frame 220, and one end of each heat exchange tube 230 communicates with the first flow channel 221, and the other end of each heat exchange tube 230 communicates with the second flow channel 222.
[0029] It should be noted that the rotary driving member 130 drives the material bucket 120 to continuously rotate. For example, the rotary driving member 130 is a rotary table driven by a motor. By fixing the material bucket 120 on the rotary table, the material bucket 120 can be driven to continuously rotate. The material bucket 120 is used to contain refractory materials. In this way, the continuous rotation of the refractory materials can effectively prevent the refractory materials from stratifying due to static settlement. Further, the support frame 210 is fixedly installed on the base 110, and then the heat exchange frame 220 is installed on the support frame 210 such that one end of the heat exchange frame 220 extends into the material bucket 120, wherein the heat exchange frame 220 is in a non-contact state with the inner sidewall of the material bucket 120. Each of the heat exchange tubes 230 is installed on the heat exchange frame 220, and both ends of the heat exchange tube 230 communicate with the first flow channel 221 and the second flow channel 222, respectively. In this way, by introducing ice water into one of the first flow channel 221 and the second flow channel 222 and flowing out from the other, the refractory slurry in full contact with each heat exchange tube 230 can be stably maintained at a specified temperature state. In particular, by driving the rotation of the refractory slurry by the rotation of the material bucket 120 and cooperating with the heat exchange function of the heat exchange tubes 230, the refractory slurry can be quickly adjusted to the required temperature, so that the refractory slurry is stably in a proper mixing degree and temperature. When a wax tree is placed in the material bucket 120, a refractory layer with a uniform thickness can be covered on the outer sidewall of the wax tree.
[0030] As Figure 1 As shown, in one embodiment, a placement table 140 is further provided on a side of the base 110 away from the support frame 210, and the height of the placement table 140 is greater than the height of the material bucket 120.
[0031] It should be noted that in order to facilitate the workers to place the wax tree into the material barrel 120, a placing table 140 is provided on the base 110, where the placing table 140 is higher than the top of the material barrel 120. In this way, since the wax tree usually has multiple wax molds, it is convenient for the workers to use the placing table 140 as a transfer platform for moving the wax tree in or out. Moreover, it is convenient for the workers to check whether the outer surface of the wax tree is evenly coated with refractory material.
[0032] As Figure 1 shown, in one embodiment, a cross plate 240 is adjustably provided on the support frame 210, and the heat exchange frame 220 is arranged on the cross plate 240.
[0033] It should be noted that in order to facilitate the adjustment of the position of the heat exchange frame 220 in the material barrel 120 so that each heat exchange tube 230 can better cool the refractory slurry, a cross plate 240 with adjustable horizontal installation position is installed on the support frame 210. The heat exchange frame 220 is detachably installed on the cross plate 240.
[0034] As Figures 1 to 3 shown, in one embodiment, a clamping platform 250 is provided at the top of the heat exchange frame 220, a clamping groove 241 is formed on the cross plate 240, and the heat exchange frame 220 is located in the clamping groove 241 so that the clamping platform 250 abuts against the clamping groove 241.
[0035] It should be noted that since the heat exchange frame 220 and the heat exchange tubes 230 are in direct contact with the refractory slurry, the heat exchange frame 220 needs to be disassembled and cleaned regularly every day to prevent the refractory slurry from continuously adhering to the heat exchange frame 220 and the heat exchange tubes 230, thereby affecting the cooling effect. Therefore, the above structure is provided for the convenience of disassembling the heat exchange frame 220. Specifically, a clamping groove 241 is formed on the cross plate 240. For example, the clamping groove 241 is a U-shaped groove structure, and a clamping platform 250 with an integrally formed structure is provided at the top of the heat exchange frame 220. In this way, the clamping platform 250 is placed in the clamping groove 241, and the heat exchange frame 220 is supported and clamped by the clamping groove 241.
[0036] As Figure 1 and Figure 3 shown, in one embodiment, the cooling assembly 200 further includes a cover plate 260. Water inlet holes 261 and water outlet holes 262 are formed on the cover plate 260. When the cover plate 260 is buckled on the cross plate 240, the water inlet holes 261 are communicated with the first flow channel 221, and the water outlet holes 262 are communicated with the second flow channel 222.
[0037] It should be noted that in order to ensure the reliable fixation of the heat exchange rack 220 on the horizontal plate 240, a cover plate 260 is provided to clamp and fix the heat exchange rack 220. Specifically, the cover plate 260 is installed on the horizontal plate 240 through fasteners. The cover plate 260 is provided with a water inlet hole 261 and a water outlet hole 262. When the cover plate 260 is buckled on the horizontal plate 240, the water inlet hole 261 will communicate with the first flow channel 221, and the water outlet hole 262 will communicate with the second flow channel 222. The water inlet hole 261 and the water outlet hole 262 are used to communicate with an external chiller, so that cold water flows into from the first flow channel 221, flows out from the second flow channel 222 after passing through each heat exchange tube 230, and the cold water circulates to cool the refractory slurry.
[0038] As Figure 3 shown, in one embodiment, a sealing ring 270 is respectively arranged at one end of the first flow channel 221 and the second flow channel 222 close to the cover plate 260.
[0039] It should be noted that in order to ensure the sealing between the water inlet hole 261 and the first flow channel 221, and to ensure the sealing between the water outlet hole 262 and the second flow channel 222, a sealing ring 270 is arranged between the water inlet hole 261 and the first flow channel 221, and a sealing ring 270 is arranged between the water outlet hole 262 and the second flow channel 222. When the cover plate 260 is buckled and installed on the horizontal plate 240, the sealing ring 270 is squeezed and clamped to play a role in sealing and preventing water leakage. In addition, it should be noted that the detachable installation structure of the heat exchange rack 220 and the cover plate 260 is for facilitating the disassembly and cleaning of the heat exchange rack 220.
[0040] As Figure 4 shown, in one embodiment, a jack 211 is opened on the support frame 210, the horizontal plate 240 passes through the jack 211, a hand wheel 280 is screwed on the support frame 210, one end of the hand wheel 280 extends into the jack 211, and the hand wheel 280 is used to press against the horizontal plate 240.
[0041] In this way, the horizontal plate 240 is inserted in the jack 211, and the position of the heat exchange rack 220 in the material bucket 120 can be adjusted. After the position of the heat exchange rack 220 is determined, by rotating the hand wheel 280, the horizontal plate 240 can be pressed and fixed by the hand wheel 280.
[0042] In one embodiment, the minimum distance between any two adjacent heat exchange tubes 230 is 10 mm to 20 mm.
[0043] In this way, there is a gap between any two adjacent heat exchange tubes 230, and the range of the gap is 10 mm to 20 mm, for example, it can also be 15 mm. In this way, it can fully ensure the heat exchange between the heat exchange tubes 230 and the refractory slurry, and at the same time prevent the heat exchange tubes 230 from affecting the rotation of the material bucket 120 driving the refractory slurry.
[0044] In one embodiment, the heat exchange tube 230 is welded to the heat exchange frame 220. In this way, the tightness between the heat exchange tube 230 and the heat exchange frame 220 is ensured.
[0045] In one embodiment, a rounded corner portion 231 is provided on the outer side wall of the heat exchange tube 230. Further, the cross-section of the heat exchange tube 230 can be a circular structure or a sheet tube structure. In this way, it is convenient for the heat exchange tube 230 to be in full contact with the refractory slurry, so as to fully conduct heat exchange.
[0046] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. Among them, the installation / fixing / setting in the present invention can be understood as including but not limited to locking and fixing with screws / screws and welding unless otherwise specifically defined. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.
Claims
1. A cooling device for a wax mold shell slurry, characterized in that, Comprising: A charging assembly, the charging assembly including a base, a drum and a rotary driving member, the rotary driving member being disposed within the base, the drum being rotatably disposed on the base, and the drum being connected to the output shaft of the rotary driving member; and A cooling assembly, the cooling assembly including a support frame, a heat exchange frame and a plurality of heat exchange tubes, the support frame being disposed on the base, one end of the heat exchange frame being disposed on the support frame, the other end of the heat exchange frame extending into the drum in a non-contact manner, a first flow channel and a second flow channel being defined within the heat exchange frame, each of the heat exchange tubes being spaced apart on the heat exchange frame, and one end of each of the heat exchange tubes being in communication with the first flow channel, and the other end of each of the heat exchange tubes being in communication with the second flow channel.
2. The wax mold shell slurry cooling device according to claim 1, characterized in that, A placing table is further disposed on a side of the base away from the support frame, and the height of the placing table is greater than the height of the drum.
3. The wax mold shell slurry cooling device according to claim 1, characterized in that, A cross plate is adjustably disposed on the support frame, and the heat exchange frame is disposed on the cross plate.
4. The wax mold shell slurry cooling device according to claim 3, characterized in that, A clamping platform is disposed at the top of the heat exchange frame, a clamping groove is defined in the cross plate, and the heat exchange frame is located within the clamping groove such that the clamping platform abuts against the clamping groove.
5. The wax mold shell slurry cooling device according to claim 4, characterized in that, The cooling assembly further includes a cover plate, an inlet hole and an outlet hole being defined in the cover plate, and when the cover plate is buckled on the cross plate, the inlet hole is in communication with the first flow channel, and the outlet hole is in communication with the second flow channel.
6. The wax mold shell slurry cooling device according to claim 5, characterized in that, A sealing ring is respectively disposed at one end of the first flow channel and the second flow channel close to the cover plate.
7. The wax mold shell slurry cooling device according to claim 3, characterized in that A jack is defined in the support frame, the cross plate passes through the jack, a hand wheel is screwed on the support frame, one end of the hand wheel extends into the jack, and the hand wheel is used to tightly press the cross plate.
8. The wax mold shell slurry cooling device according to claim 1, characterized in that, The minimum distance between any two adjacent heat exchange tubes is 10 mm to 20 mm.
9. The wax mold shell slurry cooling device according to claim 8, wherein The heat exchange tubes are welded to the heat exchange frame.
10. The wax mold shell slurry cooling device according to claim 9, characterized in that, A rounded corner portion is disposed on the outer sidewall of the heat exchange tube.