Simple hot core box

Abstract

The utility model discloses a simple hot core box, which relates to the technical field of casting molds and comprises a hot core box main body, a uniform heating mechanism is mounted on the inner wall of the hot core box main body, and a core ejecting mechanism is mounted on the inner wall of the hot core box main body. According to the uniform heating mechanism, the heating plate is tightly attached to the partition plate, and the heat transfer grooves are distributed at equal intervals relative to the outer side wall of the partition plate, so that when the device is used, a sand core in the device is heated through the heating plate, uniform heat conduction is carried out through the heat transfer grooves, rapid molding of the sand core is accelerated, and the production quality of the sand core is improved; the practicability of the device is improved; and through the arranged core ejecting mechanism, the ejecting plate and the hot core box main body form a telescopic structure through a reset spring, when the device is used, after the sand core is heated, the ejecting plate ejects the core mold and the sand core through the elastic force characteristic of the reset spring, the sand core is conveniently taken out, and the convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, and specifically relates to a simple hot core box. Background Technique

[0002] A hot core box is a kind of mold for casting cores. When casting sand cores, the sand material mixed with casting sand, thermosetting resin and curing agent is injected into the hot core box with a heating function. The hot core box heats the mixed sand material. Under the action of temperature, the binder in the mixed sand material rapidly polycondenses and hardens, so as to quickly form a sand core. To improve the production efficiency of the sand core, a simple hot core box is needed.

[0003] The prior art patent document with the publication number of CN218744703U provides a simple hot core box, which belongs to the technical field of casting molds. To solve the problem that when making cores by the hot core box core-making method, when the moving die and the fixed die of the hot core box mold are heated, due to uneven thermal expansion of the mold, deformation occurs at the mold joint surface and gaps are generated, resulting in air leakage during sand shooting and poor core-making quality. This application includes a first module and a second module; after the first module and the second module are clamped, a cavity adapted to the shape of the core is formed between them; a sand shooting port is arranged on the side of the hot core box mold, and the sand shooting port is communicated with the cavity; on the mold joint surface of the hot core box mold, a groove is arranged along the outside of the cavity, and a sealing strip is installed in the groove. The hot core box mold of this application eliminates the gaps generated during the heating process of the mold by arranging a groove on the outside of the cavity on the mold joint surface and installing a high-temperature resistant sealing strip in the groove, avoiding air leakage during the sand shooting process and improving the qualified rate of the core-making finished products. However, when the technology of CN218744703U is operated, there are problems of uneven heating, inability to eject the core, and inconvenience in replacing the core mold. Therefore, a simple hot core box is urgently needed. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a simple hot core box to solve the problems of uneven heating, inability to eject the core, and inconvenience in replacing the core mold when the existing simple hot core box is in use.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a simple hot core box, including a hot core box main body, and a uniform heating mechanism is installed on the inner wall of the hot core box main body.

[0006] A core ejection mechanism is installed on the inner wall of the hot core box main body.

[0007] A fixing mechanism is installed on the outer wall of the core ejection mechanism. A limiting rod is installed on the inner wall of the hot core box main body. A cover plate is installed on the outer wall of the limiting rod. Ventilation grooves are opened on the inner wall of the cover plate.

[0008] Preferably, the uniform heating mechanism includes a heating plate, a partition plate, and a heat transfer groove. The heating plate is installed on the inner wall of the hot core box body. The partition plate is installed on the outer wall of the heating plate. The heat transfer groove is formed on the inner wall of the partition plate.

[0009] Preferably, the heating plate and the partition plate are closely attached. The heat transfer grooves are arranged at equal intervals along the outer side wall of the partition plate.

[0010] Preferably, the core pushing mechanism includes a return spring, a top plate, and a limiting shaft. The return spring is installed on the inner wall of the hot core box body. The top plate is installed on the outer wall of the return spring. The limiting shaft is installed on the outer wall of the top plate.

[0011] Preferably, the top plate and the hot core box body form a telescopic structure through the return spring. The outer side wall of the limiting shaft is provided with a thread.

[0012] Preferably, the fixing mechanism includes a core mold, a fixing groove, and a fixing sleeve. The core mold is installed on the outer wall of the limiting shaft. The fixing groove is formed on the inner wall of the core mold. The fixing sleeve is installed on the outer wall of the limiting shaft.

[0013] Preferably, the core mold and the limiting shaft are movably connected. The limiting shaft and the fixing sleeve are threadedly connected.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the uniform heating mechanism provided by the present utility model, the heating plate and the partition plate are closely attached, and the heat transfer grooves are arranged at equal intervals along the outer side wall of the partition plate. When using the device, the heating plate heats the core sand inside the device, and uniform heat conduction is carried out through the heat transfer grooves, accelerating the rapid forming of the core sand and improving the production quality of the core sand, increasing the practicability of the device;

[0016] 2. Through the core pushing mechanism provided by the present utility model, the top plate and the hot core box body form a telescopic structure through the return spring. When using the device, after the core sand is heated, the top plate pushes up the core mold and the core sand through the elastic characteristic of the return spring, facilitating the removal of the core sand and increasing the convenience of the device;

[0017] 3. Through the fixing mechanism provided by the present utility model, the core mold and the limiting shaft are movably connected, and the fixing sleeve and the limiting shaft are threadedly connected. When using the device, the core mold is sleeved on the outer wall of the limiting shaft, and then fixed to the limiting shaft through the fixing sleeve by threading. The setting of the fixing sleeve facilitates the replacement of core molds with different shapes for the device, increasing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the front view of the present utility model;

[0019] Figure 2 Schematic diagram of the internal component disassembly structure of the present utility model;

[0020] Figure 3 Schematic diagram of the structure of the uniform heating mechanism of the present utility model;

[0021] Figure 4 Schematic diagram of the structure of the core pushing mechanism of the present utility model;

[0022] Figure 5 Schematic diagram of the structure of the fixing mechanism of the present utility model.

[0023] In the figure: 1. Hot core box main body; 2. Uniform heating mechanism; 201. Heating plate; 202. Partition board; 203. Heat transfer groove; 3. Core pushing mechanism; 301. Return spring; 302. Top plate; 303. Limit shaft; 4. Fixing mechanism; 401. Core mold; 402. Fixing groove; 403. Fixing sleeve; 5. Limit rod; 6. Cover plate; 7. Venting groove. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0025] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0026] Please refer to Figures 1-5 , a simple hot core box, including a hot core box main body 1, a uniform heating mechanism 2 is installed on the inner wall of the hot core box main body 1. The uniform heating mechanism 2 includes a heating plate 201, a partition board 202 and a heat transfer groove 203. The heating plate 201 is installed on the inner wall of the hot core box main body 1, the partition board 202 is installed on the outer wall of the heating plate 201, and the heat transfer groove 203 is opened on the inner wall of the partition board 202. The heating plate 201 and the partition board 202 are closely attached. The heat transfer grooves 203 are arranged at equal intervals on the outer side wall of the partition board 202. By setting the uniform heating mechanism 2, the heating plate 201 and the partition board 202 are closely attached, and the heat transfer grooves 203 are arranged at equal intervals on the outer side wall of the partition board 202. When using the device, the core sand inside the device is heated by the heating plate 201, and uniform heat conduction is carried out through the heat transfer grooves 203, accelerating the rapid forming of the core sand and improving the production quality of the core sand, and increasing the practicability of the device.

[0027] Please refer to Figures 1-5, A simple hot core box. A core ejecting mechanism 3 is installed on the inner wall of the hot core box body 1. The core ejecting mechanism 3 includes a return spring 301, a top plate 302 and a limit shaft 303. The return spring 301 is installed on the inner wall of the hot core box body 1. The top plate 302 is installed on the outer wall of the return spring 301. The limit shaft 303 is installed on the outer wall of the top plate 302. The top plate 302 and the hot core box body 1 form a telescopic structure through the return spring 301. The outer side wall of the limit shaft 303 is provided with a thread. By providing the core ejecting mechanism 3, the top plate 302 and the hot core box body 1 form a telescopic structure through the return spring 301. When using the device, after the sand core is heated, the top plate 302 jacks up the core mold 401 and the sand core through the elastic characteristic of the return spring 301, which is convenient for taking out the sand core and increases the convenience of the device.

[0028] Please refer to Figures 1-5 , A simple hot core box. A fixing mechanism 4 is installed on the outer wall of the core ejecting mechanism 3. The fixing mechanism 4 includes a core mold 401, a fixing groove 402 and a fixing sleeve 403. The core mold 401 is installed on the outer wall of the limit shaft 303. The fixing groove 402 is opened on the inner wall of the core mold 401. The fixing sleeve 403 is installed on the outer wall of the limit shaft 303. The core mold 401 and the limit shaft 303 are movably connected. The limit shaft 303 and the fixing sleeve 403 are threadedly connected. A limit rod 5 is installed on the inner wall of the hot core box body 1. A cover plate 6 is installed on the outer wall of the limit rod 5. The air vent groove 7 is opened on the inner wall of the cover plate 6. By providing the fixing mechanism 4, the core mold 401 and the limit shaft 303 are movably connected. The fixing sleeve 403 and the limit shaft 303 are threadedly connected. When using the device, the core mold 401 is sleeved on the outer wall of the limit shaft 303, and then fixed by screwing the fixing sleeve 403 and the limit shaft 303. The setting of the fixing sleeve 403 is convenient for the device to replace core molds 401 of different shapes and increases the applicability of the device.

[0029] Working principle: When in use, first move the device to the required position. Then, the core mold 401 is movably connected to the limit shaft 303, and the fixed sleeve 403 is threadedly connected to the limit shaft 303. When using the device, put the core mold 401 on the outer wall of the limit shaft 303, and then fix it to the limit shaft 303 through the fixed sleeve 403. The setting of the fixed sleeve 403 facilitates the device to replace core molds 401 of different shapes, increasing the applicability of the device. Then, closely attach the heating plate 201 to the partition plate 202. The heat transfer grooves 203 are arranged at equal intervals on the outer side wall of the partition plate 202. When using the device, heat the core sand inside the device through the heating plate 201, and conduct uniform heat through the heat transfer grooves 203, accelerating the rapid forming of the core sand and improving the production quality of the core sand, increasing the practicality of the device. Finally, after the core sand is formed, the top plate 302 and the hot core box body 1 form a telescopic structure through the return spring 301. When using the device, after the core sand is heated, the top plate 302 jacks up the core mold 401 and the core sand through the elastic characteristic of the return spring 301, facilitating the removal of the core sand and increasing the convenience of the device. In this way, the use process of the device is completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only a simplified description for facilitating the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the protection scope of the present invention.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A simple hot box, comprising a hot box body (1), characterized in that: The inner wall of the hot core box body (1) is provided with a uniform heating mechanism (2); The inner wall of the hot core box body (1) is provided with a core pushing mechanism (3); The outer wall of the core pushing mechanism (3) is installed with a fixing mechanism (4), the inner wall of the hot core box body (1) is installed with a limiting rod (5), the outer wall of the limiting rod (5) is installed with a cover plate (6), and the inner wall of the cover plate (6) is provided with a ventilation groove (7).

2. A simple hot box according to claim 1, characterized in that: The uniform heating mechanism (2) comprises a heating plate (201), a partition (202) and a heat transfer groove (203); the inner wall of the hot core box body (1) is provided with a heating plate (201); the outer wall of the heating plate (201) is provided with a partition (202); and the inner wall of the partition (202) is provided with a heat transfer groove (203).

3. A simple hot box according to claim 2, characterized in that: The heating plate (201) and the partition (202) are tightly fitted, and the heat transfer grooves (203) are arranged at equal intervals on the outer wall of the partition (202).

4. A simple hot box according to claim 1, characterized in that: The core pushing mechanism (3) comprises a return spring (301), a top plate (302) and a limit shaft (303); the return spring (301) is installed on the inner wall of the hot core box body (1); the top plate (302) is installed on the outer wall of the return spring (301); and the limit shaft (303) is installed on the outer wall of the top plate (302).

5. A simple hot box according to claim 4, characterized in that: The top plate (302) forms a telescopic structure with the hot core box body (1) via a return spring (301), and the outer side wall of the limiting shaft (303) is arranged in a threaded shape.

6. A simple hot box according to claim 4, characterized in that: The fixing mechanism (4) comprises a core mold (401), a fixing groove (402) and a fixing sleeve (403); the outer wall of the limiting shaft (303) is provided with the core mold (401); the inner wall of the core mold (401) is provided with a fixing groove (402); and the outer wall of the limiting shaft (303) is provided with a fixing sleeve (403).

7. A simple hot box according to claim 6, characterized in that: The core mold (401) and the limiting shaft (303) are movably connected, and the limiting shaft (303) and the fixing sleeve (403) are threadedly connected.

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