Resin sand production device convenient to operate

By using a support frame and inner and outer cylinder structures, with the inner cylinder filled with ether, combined with servo motor drive and temperature sensor control, the problems of uneven heating and safety of resin sand are solved, achieving uniform heating and safe drying of resin sand.

CN224238204UActive Publication Date: 2026-05-15CHANGZHOU SAVELI FOUNDRY TECH CO LTD
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Patent Information

Application Number
CN202521206762.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-13
Publication Date
2026-05-15
Estimated Expiration
2035-06-13

AI Technical Summary

Technical Problem

Existing resin sand production equipment is prone to overheating during the heating process, causing the resin sand to melt prematurely and resulting in uneven heating, which affects drying quality and operational safety.

Method used

The system employs a support frame and inner and outer cylinder structure. The inner cylinder is filled with thermally conductive liquid ether. Combined with a servo motor driving the inner cylinder to rotate and a temperature sensor for control, it achieves uniform heating and safe drying of the resin sand.

Benefits of technology

This effectively prevents the resin sand from melting prematurely, improves the uniformity and safety of heating, and ensures the quality of drying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a resin sand production device convenient to operate, which comprises two groups of support frames, the inner walls of the support frames are rotatably connected with a drying cylinder, and the drying cylinder comprises an outer cylinder and an inner cylinder; the ceramic cylinder is located between the outer cylinder and the inner cylinder, the inner wall of the ceramic cylinder is filled with heat conduction liquid, the supporting frame and the base are used in cooperation and used for supporting and rotating the outer cylinder, and the inner cylinder is used for containing resin sand. And the heat conduction liquid is diethyl ether, damage to the resin sand caused by too high temperature can be avoided, the resin sand is heated and dried, and meanwhile the resin sand can be prevented from being melted in advance.
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Description

Technical Field

[0001] This utility model relates to the technical field of resin sand production equipment, specifically an easy-to-operate resin sand production equipment. Background Technology

[0002] Resin sand is molding sand or core sand using synthetic resin as a binder. It forms high-strength molds or cores through the action of a curing agent and is widely used in the foundry industry. Its core advantages lie in high-precision molding and adaptability to complex structures, making it particularly suitable for thin-walled, precision castings in the automotive, aerospace, and shipbuilding industries. During the production of resin sand, it needs to be heated and dried to remove excess moisture. Existing drying equipment for resin sand production typically involves direct contact between the heating structure and the resin sand, which can easily lead to excessively high temperatures. This causes the resin sand to melt prematurely, damaging its state and hindering improvements in heating uniformity and operational safety. It also compromises the uniform drying process and the quality of the dried resin sand. Utility Model Content

[0003] The purpose of this invention is to provide an easy-to-operate resin sand production device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An easy-to-operate resin sand production apparatus, comprising:

[0006] A support frame, wherein two sets of support frames are provided, and a drying cylinder is rotatably connected to the inner wall of the support frame. The drying cylinder includes an outer cylinder and an inner cylinder.

[0007] A ceramic cylinder is located between an outer cylinder and an inner cylinder, and the inner wall of the ceramic cylinder is filled with a heat-conducting liquid.

[0008] In a preferred embodiment of this utility model, the inner wall of the support frame is rotatably connected to the outer cylinder via a bearing, the bottom outer wall of the support frame is fixedly mounted with a base, and the top outer wall of the base is fixedly mounted with a controller.

[0009] In a preferred embodiment of this utility model, a first display screen and a first operation button are fixedly installed on the outer wall of the controller, and a servo motor is fixedly installed on the top outer wall of the base.

[0010] In a preferred embodiment of this utility model, a first gear is fixedly installed on the outer wall of the output shaft of the servo motor, and a second gear is fixedly installed on the outer wall of the outer cylinder. The first gear and the second gear are meshed and connected for transmission.

[0011] In a preferred embodiment of this utility model, the ceramic cylinder is fixedly installed in the cavity between the outer cylinder and the inner cylinder, and the top of the ceramic cylinder is fixedly connected to a filling pipe. The filling pipe is tapered, and the top outer wall of the filling pipe is sealed with a cover plate.

[0012] In a preferred embodiment of this utility model, a pressure gauge is fixedly installed on the top outer wall of the cover plate, and the pressure gauge is used to display the pressure in the ceramic cylinder.

[0013] In a preferred embodiment of this utility model, a drain pipe is fixedly installed on the outer wall of the bottom end of the ceramic cylinder away from the filling pipe, and a valve is installed on the outer wall of the bottom end of the drain pipe.

[0014] In a preferred embodiment of this utility model, an auger is fixedly installed on the inner wall of the inner cylinder, and threaded end caps are fitted to the inner walls at both ends of the inner cylinder.

[0015] In a preferred embodiment of this utility model, a viewing window is fixedly installed on the inner wall of the end cover plate, a handwheel is fixedly installed at the center of the end cover plate, a temperature sensor is fixedly installed on the outer wall of the end cover plate, and an exhaust hole is provided on the surface of the end cover plate.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0017] 1. The support frame and base are used together to support and rotate the outer cylinder. The inner cylinder is used to hold the resin sand, which facilitates the heating and drying of the resin sand. The heat transfer liquid is ether, which can prevent the resin sand from being damaged by excessive temperature and heat and dry the resin sand while preventing the resin sand from melting prematurely.

[0018] 2. By setting a rotatable inner cylinder structure to stir the resin sand, the resin sand can be heated and dried evenly during the heating process, which improves the practicality and safety of the equipment and enhances the protection of the resin sand. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the main structure of a resin sand production device that is easy to operate.

[0021] Figure 2 This is a side view of a resin sand production device designed for easy operation.

[0022] Figure 3 This is a rear view schematic diagram of a resin sand production device that is easy to operate.

[0023] Figure 4 This is a schematic diagram of the exploded structure of an easy-to-operate resin sand production device.

[0024] Figure 5 This is a schematic diagram of the filling port structure in an easy-to-operate resin sand production device;

[0025] Figure 6 This is a schematic diagram of the drain outlet structure in an easy-to-operate resin sand production device.

[0026] In the diagram: base 100, support frame 110, bearing 111.

[0027] Controller 200, first display screen 210, first operation button 220

[0028] Outer cylinder 300, inner cylinder 310, auger 311, filling pipe 330, drain pipe 340, valve 341, end cover plate 350, temperature sensor 351, viewing window 352, handwheel 353, servo motor 360, first gear 361, second gear 370. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] Example 1: As Figures 1-4 ,include

[0031] Support frame 110, the support frame 110 is provided in two sets, the inner wall of the support frame 110 is rotatably connected to the drying cylinder, the drying cylinder includes an outer cylinder 300 and an inner cylinder 310;

[0032] A ceramic cylinder 320 is located between an outer cylinder 300 and an inner cylinder 310, and the inner wall of the ceramic cylinder 320 is filled with a heat-conducting liquid.

[0033] The specific application scenario of this embodiment is as follows: By setting up a support frame 110 and a base for use together, it is used to support and rotate the outer cylinder 300. By setting up an inner cylinder 310 for holding resin sand, it is convenient to heat and dry the resin sand. The heat-conducting liquid is diethyl ether. Under normal pressure, the boiling point of diethyl ether is about 34.6°C. This can prevent the resin sand from being damaged by excessive temperature when heating diethyl ether, and can heat and dry the resin sand while preventing the resin sand from melting prematurely.

[0034] Example 2: As Figure 1 The inner wall of the support frame 110 is rotatably connected to the outer cylinder 300 via bearing 111. The bottom outer wall of the support frame 110 is fixedly mounted on the base 100. The top outer wall of the base 100 is fixedly mounted on the controller 200. The outer wall of the controller 200 is fixedly mounted on the first display screen 210 and the first operation button 220. The controller 200 is a general standard component or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. The top outer wall of the base 100 is fixedly mounted on the servo motor 360. The outer wall of the output shaft of the servo motor 360 is fixedly mounted on the first gear 361. The outer wall of the outer cylinder 300 is fixedly mounted on the second gear 370. The second gear 370 meshes with the first gear 361 for transmission.

[0035] The specific application scenario of this embodiment is as follows: a controller 200 is set to control the device for electrical operation, a first display screen 210 and a first operation button 220 are set to operate the controller 200, and a servo motor 360 and a first gear 361 and a second gear 370 are set to control the outer cylinder 300 to drive the ceramic cylinder 320 and the inner cylinder 310 to rotate synchronously, thereby causing the resin sand inside the inner cylinder 310 to flip, so that the resin sand can be heated evenly.

[0036] Example 3: As Figure 5 and Figure 6 A ceramic cylinder 320 is fixedly installed in the cavity between the outer cylinder 300 and the inner cylinder 310. A filling pipe 330 is fixedly connected to the top of the ceramic cylinder 320. The filling pipe 330 is tapered. A cover plate 331 is sealed to the top outer wall of the filling pipe 330. A pressure gauge 332 is fixedly installed on the top outer wall of the cover plate 331. The pressure gauge 332 is used to display the pressure in the ceramic cylinder 320. A drain pipe 340 is fixedly installed on the bottom outer wall of the ceramic cylinder 320 away from the filling pipe 330. A valve 341 is installed on the bottom outer wall of the drain pipe 340.

[0037] The specific application scenario of this embodiment is as follows: by setting up a filling pipe 330 to add ether to the ceramic cylinder 320 as a heat transfer fluid to conduct heat to the resin sand, by setting up a cover plate 331 to seal the top of the filling pipe 330, by setting up a pressure gauge 332 to detect the pressure in the ceramic cylinder 320 to improve the safety of equipment use, and by setting up a drain pipe 340 to drain the ether in the ceramic cylinder 320.

[0038] Example 4: Figure 3 and Figure 4 An auger 311 is fixedly installed on the inner wall of the inner cylinder 310. End cover plates 350 are threadedly connected to the inner walls of both ends of the inner cylinder 310. A viewing window 352 is fixedly installed on the inner wall of the end cover plate 350. A handwheel 353 is fixedly installed at the center of the end cover plate 350. A temperature sensor 351 is fixedly installed on the outer wall of the end cover plate 350. An exhaust hole is provided on the surface of the end cover plate.

[0039] The specific application scenario of this embodiment is as follows: by setting an end cover plate 350 to seal the port of the inner cylinder 310, by setting a viewing window 352 to facilitate the operator to check the state of the resin sand in the inner cylinder 310, and by setting an exhaust hole to allow the moisture in the resin sand to evaporate and be discharged through the exhaust hole on the surface of the end cover plate 350.

[0040] The working principle of this utility model is as follows: When used by those skilled in the art, the resin sand to be dried is introduced into the inner cylinder 310 through the port of the inner cylinder 310. Then, the end caps 350 at both ends are threadedly connected and installed on the inner wall of the inner cylinder 310. Subsequently, heat is generated by energizing the heating wire installed inside the ceramic cylinder 320, thereby heating the ether added inside the ceramic cylinder 320. This allows the ceramic cylinder 320 to quickly transfer heat to the inner cylinder 310, heating and drying the resin sand inside the inner cylinder 310, causing the moisture in the resin sand to evaporate. After heating, the resin sand is discharged through the vent on the surface of the end cover plate 350 to dry the resin sand. This prevents the resin sand from melting prematurely due to excessive heating temperature, thus improving the protection of the resin sand. A temperature sensor 351 is set to detect the temperature inside the inner cylinder 310. A viewing window 352 is set to facilitate the operator to check the status of the resin sand in the inner cylinder 310. By turning on the servo motor 360, the inner cylinder 310 is driven to rotate, thereby causing the resin sand inside the inner cylinder 310 to tumble, so that the resin sand is heated and dried evenly.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A resin sand production device that is easy to operate, characterized in that, include The support frame (110) is provided in two sets. The inner wall of the support frame (110) is rotatably connected to the drying cylinder, which includes an outer cylinder (300) and an inner cylinder (310). A ceramic cylinder (320) is located between an outer cylinder (300) and an inner cylinder (310), and the inner wall of the ceramic cylinder (320) is filled with a heat-conducting liquid.

2. The resin sand production device for easy operation according to claim 1, characterized in that, The inner wall of the support frame (110) is rotatably connected to the outer cylinder (300) via a bearing (111). The bottom outer wall of the support frame (110) is fixedly mounted with a base (100), and the top outer wall of the base (100) is fixedly mounted with a controller (200).

3. The resin sand production device according to claim 2, characterized in that, The controller (200) has a first display screen (210) and a first operation button (220) fixedly installed on its outer wall, and a servo motor (360) is fixedly installed on the top outer wall of the base (100).

4. The easy-to-operate resin sand production device according to claim 3, characterized in that, The first gear (361) is fixedly installed on the outer wall of the output shaft of the servo motor (360), and the second gear (370) is fixedly installed on the outer wall of the outer cylinder (300). The second gear (370) meshes with the first gear (361) for transmission.

5. The easy-to-operate resin sand production device according to claim 1, characterized in that, The ceramic cylinder (320) is fixedly installed in the cavity between the outer cylinder (300) and the inner cylinder (310). The top of the ceramic cylinder (320) is fixedly connected to the filling pipe (330), which is tapered. The top outer wall of the filling pipe (330) is sealed with a cover plate (331).

6. The resin sand production apparatus according to claim 5, characterized in that, A pressure gauge (332) is fixedly installed on the top outer wall of the cover plate (331), and the pressure gauge (332) is used to display the pressure in the ceramic cylinder (320).

7. The easy-to-operate resin sand production device according to claim 6, characterized in that, A drain pipe (340) is fixedly installed on the outer wall of the bottom end of the ceramic cylinder (320) away from the filling pipe (330), and a valve (341) is installed on the outer wall of the bottom end of the drain pipe (340).

8. The easy-to-operate resin sand production device according to claim 1, characterized in that, The inner wall of the inner cylinder (310) is fixedly installed with an auger (311), and the inner walls at both ends of the inner cylinder (310) are fitted with threaded end caps (350).

9. The resin sand production apparatus according to claim 8, characterized in that, A viewing window (352) is fixedly installed on the inner wall of the end cover plate (350), a handwheel (353) is fixedly installed at the center of the end cover plate (350), a temperature sensor (351) is fixedly installed on the outer wall of the end cover plate (350), and an exhaust hole is provided on the surface of the end cover plate (350).