Double-path self-hardening sand mixing and molding device

Abstract

The utility model discloses a double-path self-hardening sand mixing and molding device, relates to the technical field of sand mixing equipment, and aims to solve the problems that most existing sand mixers are only provided with one input port, workers need to input materials in batches, the production cycle is prolonged, the production cost is increased, the materials are easy to cake after being stored for a long time, and the production efficiency is high. The sand mixer comprises a double-arm sand mixer body and a temporary storage box, the double-arm sand mixer body is located below the temporary storage box, and multiple sets of input ports are formed in a box cover; a crushing mechanism used for crushing the sand blocks is further arranged in the buffer box, a driving motor is further arranged on the buffer box, and the driving motor is connected with the crushing mechanism through a transmission mechanism; a Y-shaped plate and an inclined plate are arranged in the temporary storage box, the Y-shaped plate is installed on the inner wall of the temporary storage box, and the inclined plate is located below the connecting position of the box cover and the temporary storage box, so that the equipment can input multiple paths of materials at the same time and crush material blocks at the same time.

Description

Technical Field

[0001] This invention relates to the technical field of sand mixing equipment, specifically to a dual-path self-hardening sand mixing and molding device. Background Technology

[0002] In the casting process, sand mixers are used to mix sand, binders, and other additives (such as water and resin) evenly to form molding sand with specific properties. The quality of the molding sand directly affects the quality, dimensional accuracy, and surface finish of the castings. Therefore, the performance of the sand mixer is crucial to the entire casting process. High-quality molding sand should have good fluidity, permeability, strength, and reusability. However, existing sand mixers, especially single-pass sand mixers, are only equipped with one input port, particularly in high-volume casting production such as large-batch self-hardening sand. This requires workers to feed the material in multiple batches, leading to longer production cycles and increased production costs. Furthermore, the material is prone to clumping during storage, especially after prolonged storage, which further exacerbates the problem of uneven mixing and reduces the mixing effect of the sand mixer.

[0003] Therefore, this application provides a dual-path self-hardening sand mixing molding device to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a dual-path self-hardening sand mixing and molding device, which aims to solve the problems of most existing sand mixers having only one input port, requiring workers to feed materials in multiple times, resulting in extended production cycles, increased production costs, and the tendency of materials to clump during storage, especially after long periods of storage, which further exacerbates the problem of uneven mixing and reduces the mixing effect of the sand mixer.

[0005] To achieve the above objectives, this application provides the following technical solution: a dual-path self-hardening sand mixing and molding device, comprising a double-arm sand mixer and a buffer tank, wherein the double-arm sand mixer is located below the buffer tank and is connected to the buffer tank via a pipe, and the bottom of the buffer tank is connected to support legs; a cover is provided on the top of the buffer tank, and an input port is provided on the cover, with multiple sets of input ports; a crushing mechanism for crushing sand blocks is also provided inside the buffer tank, and a drive motor is also provided on the buffer tank, which is connected to the crushing mechanism via a transmission mechanism; a Y-shaped plate and an inclined plate are provided inside the buffer tank, the Y-shaped plate is installed on the inner wall of the buffer tank, and the inclined plate is located below the connection between the cover and the buffer tank, so that the device can simultaneously input multiple paths of materials.

[0006] Preferably, the crushing mechanism further includes a first rotating shaft, a second rotating shaft, and a mixing shaft. The first and second rotating shafts are located on the inner walls of the buffer tanks on both sides of the Y-shaped plate, and the mixing shaft is installed on the inner wall of the buffer tank below the Y-shaped plate, so that the materials input from different inlets are diverted.

[0007] Preferably, the first rotating shaft, the second rotating shaft, and the sand mixing shaft all pass through the buffer box and are connected to the transmission mechanism, making the crushing mechanism easier to control.

[0008] Preferably, the transmission mechanism further includes a transmission gear, a first gear, and a second gear. The first gear is mounted on the buffer box via a mounting shaft, and the second gear is mounted on the first rotating shaft. The first gear and the second gear mesh with each other, and the transmission gear is mounted on the sand mixing shaft.

[0009] Preferably, the first synchronous belt of the mounting shaft is connected to the sand mixing shaft, the mounting shaft is connected to the second rotating shaft via the second synchronous belt, and the transmission gear is connected to the drive motor, so that the first rotating shaft and the second rotating shaft rotate in opposite directions.

[0010] Preferably, the drive motor is mounted on the outer wall of the buffer box via a fixing plate, and the output end of the drive motor is connected to a motor gear. The motor gear meshes with the transmission gear, making the equipment easier to control.

[0011] In summary, the technical effects and advantages of this utility model are as follows:

[0012] In this invention, by setting a crushing mechanism inside the buffer box and using a drive motor and transmission mechanism to achieve its rotation, the agglomeration of materials generated during storage can be effectively crushed. The design of the inclined plate guides the material to fall directly onto the crushing mechanism, ensuring that all materials entering the buffer box can be fully crushed, which avoids the reduction of sand mixing effect due to material agglomeration.

[0013] In this invention, a Y-shaped plate is installed inside the buffer box to guide the crushed material to fall onto the mixing shaft, where it is initially mixed using the mixing plate. This step pre-treats the material before it enters the double-arm sand mixer for final mixing, effectively improving the overall mixing efficiency. At the same time, the initial mixing process further breaks up any remaining small amount of material lumps, further improving production efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an enlarged structural diagram of the buffer box of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of the box lid of this utility model;

[0018] Figure 4 This is an enlarged structural schematic diagram of the transmission mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the double-arm sand mixer of this utility model.

[0020] In the diagram: 1. Double-arm sand mixer; 2. Buffer box; 3. Support leg; 4. Transmission mechanism; 5. Box cover; 6. First rotating shaft; 7. Second rotating shaft; 8. Inclined plate; 9. Input port; 10. Sand mixing shaft; 11. Drive motor; 12. Motor gear; 13. Crushing mechanism; 14. Y-shaped plate; 15. Fixing plate; 41. Transmission gear; 42. First synchronous belt; 43. Second synchronous belt; 44. First gear; 45. Mounting shaft; 46. Second gear. Detailed Implementation

[0021] 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. Example

[0022] refer to Figure 1-5 The dual-path self-hardening sand mixing and molding device shown includes a double-arm sand mixer 1 and a buffer tank 2. The buffer tank 2 is fixed by support legs 3. The double-arm sand mixer 1 is located between the support legs 3 and is connected to the output port of the buffer tank 2 through a pipe. The buffer tank 2 is provided with a cover 5. Both sides of the cover 5 are provided with input ports 9. In order to avoid the sand mixing effect being reduced due to the agglomeration of some materials when inputting materials, a crushing mechanism 13 is provided inside the buffer tank 2. A transmission mechanism 4 is also provided on the outer wall of the buffer tank 2. The crushing mechanism 13 passes through the buffer tank 2 and is connected to the transmission mechanism 4. The buffer tank 2 is also provided with a drive motor 11. The drive motor 11 drives the crushing mechanism 13 to rotate through the transmission mechanism 4. The buffer tank 2 is also provided with a Y-shaped plate 14 for dividing the buffer tank 2. An inclined plate 8 is provided at the connection between the buffer tank 2 and the cover 5. The inclined plate 8 is used to guide the material to fall onto the crushing mechanism 13.

[0023] As one embodiment of this invention, in order to reduce energy consumption and maintenance costs, the transmission mechanism 4 further includes a transmission gear 41, a first gear 44, and a second gear 46. The first gear 44 is mounted on the buffer box 2 via a mounting shaft 45, and the second gear 46 is mounted on the first rotating shaft 6. The first gear 44 and the second gear 46 mesh with each other. The transmission gear 41 is mounted on the sand mixing shaft 10, and the mounting shaft 45 is connected to the sand mixing shaft 10 via a first synchronous belt 42. The mounting shaft 45 is connected to the second rotating shaft 7 via a second synchronous belt 43. The drive motor 11 mounted on the buffer box 2 via a fixing plate 15 meshes with the transmission gear 41 via a motor gear 12, so that the device can use only one drive motor 11 to drive the first rotating shaft 6, the second rotating shaft 7, and the sand mixing shaft 10 to rotate simultaneously. Both the first rotating shaft 6 and the second rotating shaft 7 are provided with feeding plates, and the sand mixing shaft 10 is provided with a sand mixing plate.

[0024] The working principle of this utility model is as follows: First, the drive motor 11 is powered on, causing it to drive the sand mixing shaft 10 to rotate via the motor gear 12 and the transmission gear 41. The sand mixing shaft 10 then drives the mounting shaft 45 to rotate synchronously via the first synchronous belt 42. The first gear 44 on the mounting shaft 45 rotates through its meshing second gear 46, causing the first rotating shaft 6 to rotate synchronously. The mounting shaft 45 also drives the second rotating shaft 7 to rotate synchronously via the second synchronous belt 43. The rotation directions of the first rotating shaft 6 and the second rotating shaft 7 are opposite. Then, external equipment feeds materials through the two input ports 9 on the box cover 5. The materials on both sides are fed through their corresponding input ports 9. The inclined plate 8 guides the material to the first rotating shaft 6 and the second rotating shaft 7. The material discharge plates on the first rotating shaft 6 and the second rotating shaft 7 break up any residual lumps in the material, thus avoiding the problem of lumps inside the sand during mixing. The broken material falls onto the mixing shaft 10 under the guidance of the Y-shaped plate 14. The mixing plate on the mixing shaft 10 performs preliminary mixing of the material, improving the mixing efficiency and further breaking up any remaining lumps in the material. Then the material moves downward to the output port of the buffer tank 2 and is fed into the double-arm sand mixer 1 through a pipe. The material is mixed by the stirring of the double-arm sand mixer 1 and then output to the sand box through the output port of the double-arm sand mixer 1.

[0025] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0026] Components not described in detail in this article are existing technologies.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-path self-hardening sand mixing molding device, characterized in that: It includes a double-arm sand mixer (1) and a buffer tank (2). The double-arm sand mixer (1) is located below the buffer tank (2). The double-arm sand mixer (1) and the buffer tank (2) are connected by a pipe. The bottom of the buffer tank (2) is connected to a support leg (3). The buffer box (2) is provided with a box cover (5) on top, and the box cover (5) is provided with an input port (9), and the input port (9) is provided with multiple sets; The buffer box (2) is also equipped with a crushing mechanism (13) for crushing sand blocks. The buffer box (2) is also equipped with a drive motor (11). The drive motor (11) is connected to the crushing mechanism (13) through a transmission mechanism (4). The buffer box (2) is provided with a Y-shaped plate (14) and an inclined plate (8). The Y-shaped plate (14) is installed on the inner wall of the buffer box (2), and the inclined plate (8) is located below the connection between the box cover (5) and the buffer box (2).

2. The dual-path self-hardening sand mixing and molding device according to claim 1, characterized in that: The crushing mechanism (13) further includes a first rotating shaft (6), a second rotating shaft (7) and a sand mixing shaft (10). The first rotating shaft (6) and the second rotating shaft (7) are located on the inner wall of the buffer box (2) on both sides of the Y-shaped plate (14), and the sand mixing shaft (10) is installed on the inner wall of the buffer box (2) below the Y-shaped plate (14).

3. The dual-path self-hardening sand mixing and molding device according to claim 2, characterized in that: The first rotating shaft (6), the second rotating shaft (7) and the sand mixing shaft (10) all pass through the buffer box (2) and are connected to the transmission mechanism (4).

4. The dual-path self-hardening sand mixing and molding device according to claim 3, characterized in that: The transmission mechanism (4) further includes a transmission gear (41), a first gear (44) and a second gear (46). The first gear (44) is mounted on the buffer box (2) via a mounting shaft (45), and the second gear (46) is mounted on the first rotating shaft (6). The first gear (44) and the second gear (46) mesh with each other, and the transmission gear (41) is mounted on the sand mixing shaft (10).

5. The dual-path self-hardening sand mixing and molding device according to claim 4, characterized in that: The mounting shaft (45) is connected to the sand mixing shaft (10) via the first synchronous belt (42), and the mounting shaft (45) is connected to the second rotating shaft (7) via the second synchronous belt (43). The transmission gear (41) is connected to the drive motor (11).

6. The dual-path self-hardening sand mixing and molding device according to claim 4, characterized in that: The drive motor (11) is mounted on the outer wall of the buffer box (2) via a fixing plate (15). The output end of the drive motor (11) is connected to a motor gear (12), which meshes with the transmission gear (41).

Images