Anti-bonding sand mixing device for molding sand production

Abstract

The utility model relates to the technical field of sand mixing devices, and discloses an anti-bonding sand mixing device for molding sand production, which comprises a sand mixing cylinder, the top of the sand mixing cylinder is fixedly connected with a motor, the surfaces of the sides, far away from a rotating shaft, of two stirring rods are respectively provided with a first storage groove, and the interiors of the two first storage grooves are respectively connected with a scraper in a sliding manner; and moving mechanisms for moving the scraping plates are arranged in the two supporting plates correspondingly, six stirring assemblies are rotationally connected into the sand mixing cylinder, every two stirring assemblies are arranged in a group, and a rotating mechanism for rotating the stirring assemblies is arranged at the top of each group of stirring assemblies. Through the arrangement of the stirring assembly, the molding sand mixing effect can be better, the gear is installed at the top of the worm, the gear is matched with the gear ring in the sand mixing cylinder, and therefore when the rotating shaft drives the worm to rotate, the worm can further drive the stirring assembly to rotate, and the sand mixing effect is better. Therefore, the sand and the adhesive can be better mixed, and the phenomenon of non-uniform mixing is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of sand mixing devices, and in particular to a sand mixing device for producing molding sand that prevents sticking. Background Technology

[0002] Sand mixing equipment is a crucial component of modern foundry industry, primarily used for preparing molding sand. It precisely configures and mixes raw materials such as sand, binders, and additives to meet specific casting requirements, ensuring casting quality and production efficiency. This equipment typically includes several key components, such as a mixing tank, a feeding system, and a control system. The mixing tank is the core component, using mechanical or pneumatic agitation to uniformly mix various raw materials. During mixing, the equipment can precisely control the proportions of each raw material, ensuring accurate formulation. The feeding system then transports the mixed molding sand to subsequent casting processes, ensuring continuous production line operation. Furthermore, modern sand mixing equipment is equipped with an automated control system that can monitor and adjust various parameters during the mixing process in real time.

[0003] During the use of sand mixing devices, sand, binders, and additives are mostly mixed by internal stirring rollers. However, some existing stirring rollers have a relatively large spacing, which can lead to uneven mixing during the sand mixing process. As a result, some areas may accumulate too much binder, leading to localized adhesion rather than overall uniformity. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sand mixing device for molding sand production that prevents sticking.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sand mixing device for molding sand production with anti-adhesion features includes a mixing cylinder. A motor is fixedly connected to the top of the mixing cylinder, and a rotating shaft is fixedly connected to the output shaft of the motor. Two collars are fitted on the surface of the rotating shaft, and two support plates are fixedly connected to the surfaces of the two collars, with the two support plates arranged symmetrically. A stirring rod is fixedly connected to the end of each support plate away from the rotating shaft. A first receiving groove is formed on the surface of each stirring rod away from the rotating shaft, and a scraper is slidably connected inside each of the two first receiving grooves. A moving mechanism for moving the scraper is provided inside each of the two support plates. Six stirring components are rotatably connected inside the mixing cylinder, and the six stirring components are arranged in pairs. Each pair of stirring components has a rotating mechanism at the top for rotating the stirring components. The arrangement of the stirring components can improve the mixing effect of the molding sand.

[0007] As a further embodiment of this utility model, the moving mechanism includes a second storage slot, which is opened on one side of the first storage slot and the second storage slot and the first storage slot are interconnected. A reciprocating screw is rotatably connected to one side of the interior of the second storage slot. A sleeve is sleeved on the surface of the reciprocating screw and the sleeve is fixedly connected to one side of the scraper. The scraper can be moved by the reciprocating screw.

[0008] As a further embodiment of this utility model, the rotating mechanism includes a worm gear, which is rotatably connected to the top of the support plate. All three stirring components are sleeved on the surface of the worm gear. A gear is fixedly sleeved on the top of the worm gear, and a toothed ring is fitted on the surface of the gear. The toothed ring is fixedly connected to the top side of the mixing cylinder. A rotating mechanism for rotating the reciprocating screw is provided on the side of the reciprocating screw near the worm gear. The stirring components can be rotated by the toothed ring.

[0009] As a further embodiment of this utility model, the rotating mechanism includes a worm gear, which is fixedly sleeved on the surface of the reciprocating screw, and the worm gear and the worm are configured to cooperate with each other. The surface of the sand mixing cylinder near the motor has a feed port, and the bottom of the sand mixing cylinder has a discharge port. By setting the worm gear, the reciprocating screw can be rotated.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by employing a worm gear-driven stirring assembly rotation technology, avoids the phenomenon of molding sand sticking together. This effectively solves the problem of uneven mixing caused by large spacing between stirring rollers, which can lead to excessive binder accumulation in certain areas, resulting in localized sticking rather than overall uniformity. A worm gear is installed on the top of the support plate, and the stirring assembly is fitted onto its surface. When the worm gear and stirring assembly rotate with the shaft, a stirring effect is achieved. A gear is installed on the top of the worm gear, which engages with a gear ring inside the mixing cylinder. When the shaft drives the worm gear to rotate, the worm gear also drives the stirring assembly to rotate, thus ensuring better mixing of the sand and binder and preventing uneven mixing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a sand mixing device for producing molding sand that prevents sticking, as proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of a sand mixing device for producing molding sand that prevents sticking, as proposed in this utility model.

[0014] Figure 3This is a cross-sectional structural diagram of a sand mixing device for producing molding sand that prevents adhesion, as proposed in this utility model.

[0015] Figure 4 This is a schematic diagram of the moving mechanism of a sand mixing device for preventing sticking in molding sand production, as proposed in this utility model.

[0016] Figure 5 for Figure 4 A magnified structural diagram at point A in the diagram.

[0017] In the diagram: 1. Mixing cylinder; 2. Motor; 3. Worm gear; 101. Feed inlet; 201. Rotating shaft; 202. Collar; 203. Support plate; 204. Stirring rod; 205. First collection tank; 206. Second collection tank; 301. Stirring assembly; 302. Reciprocating lead screw; 304. Worm gear; 305. Gear; 306. Gear ring; 307. Sleeve; 308. Scraper. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-5 A sand mixing device for molding sand production with anti-adhesion includes a mixing cylinder 1. A motor 2 is fixedly connected to the top of the mixing cylinder 1. A rotating shaft 201 is fixedly connected to the output shaft of the motor 2. Two collars 202 are fitted on the surface of the rotating shaft 201. Two support plates 203 are fixedly connected to the surface of each collar 202, and the two support plates 203 are symmetrically arranged. A stirring rod 204 is fixedly connected to the end of each support plate 203 away from the rotating shaft 201. A first receiving groove 205 is opened on the surface of each stirring rod 204 away from the rotating shaft 201. A scraper 308 is slidably connected inside each of the two first receiving grooves 205. A moving mechanism for moving the scraper 308 is provided inside each of the two support plates 203. Six stirring components 301 are rotatably connected inside the mixing cylinder 1. The six stirring components 301 are arranged in pairs. A rotating mechanism for rotating the stirring components 301 is provided on the top of each pair of stirring components 301. The arrangement of the stirring components 301 can improve the mixing effect of molding sand.

[0020] Reference Figure 3 and Figure 4In a preferred embodiment, the moving mechanism includes a second storage groove 206, which is opened on one side of the first storage groove 205 and the second storage groove 206 and the first storage groove 205 are interconnected. A reciprocating screw 302 is rotatably connected to one side of the interior of the second storage groove 206. A sleeve 307 is sleeved on the surface of the reciprocating screw 302 and is fixedly connected to one side of the scraper 308. The scraper 308 can be moved by the reciprocating screw 302.

[0021] Reference Figure 4 and Figure 5 In a preferred embodiment, the rotating mechanism includes a worm gear 3, which is rotatably connected to the top of the support plate 203. Three stirring components 301 are all sleeved on the surface of the worm gear 3. A gear 305 is fixedly sleeved on the top of the worm gear 3. A gear ring 306 is fitted on the surface of the gear 305. The gear ring 306 is fixedly connected to the inner top side of the sand mixing cylinder 1. A rotating mechanism for rotating the reciprocating screw 302 is provided on the side near the worm gear 3. The stirring components 301 can be rotated by the setting of the gear ring 306.

[0022] Reference Figure 4 and Figure 5 In a preferred embodiment, the rotating mechanism includes a worm gear 304, which is fixedly sleeved on the surface of the reciprocating screw 302 and is configured to cooperate with the worm 3. The surface of the sand mixing cylinder 1 near the motor 2 has a feed inlet 101 and a discharge outlet at the bottom. The reciprocating screw 302 can be rotated by the worm gear 304.

[0023] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: During the sand mixing process, the motor 2 starts first. A rotating shaft 201 is installed on the output shaft of the motor 2, so that when the motor 2 starts, the rotating shaft 201 will rotate accordingly. Stirring rods 204 are installed on both sides of the rotating shaft 201, and the stirring rods 204 are connected to the rotating shaft 201 through the support plate 203. Thus, when the rotating shaft 201 rotates, the stirring rods 204 will rotate synchronously to achieve the purpose of stirring. A worm gear 3 is installed on the top of the support plate 203, and a stirring assembly 301 is sleeved on the surface of the worm gear 3. Thus, when the worm gear 3 and the stirring assembly 301 rotate with the rotating shaft 201, the stirring effect can also be achieved. A gear 305 is installed on the top of the worm gear 3, and the gear 305 cooperates with the gear ring 306 inside the sand mixing cylinder 1. Therefore, when the rotating shaft 201 drives the worm 3 to rotate, the worm 3 can also drive the stirring assembly 301 to rotate, so that the sand and binder can be mixed better to avoid uneven mixing. A scraper 308 is installed on one side of the stirring rod 204, and a sleeve 307 is installed on one side of the scraper 308. The sleeve 307 is fitted on the surface of the reciprocating screw 302. A worm wheel 304 is fitted on the surface of the reciprocating screw 302, and the worm wheel 304 cooperates with the worm 3. So when the worm 3 rotates, the reciprocating screw 302 will also rotate synchronously. Since the scraper 308 is fitted on the surface of the reciprocating screw 302 through the sleeve 307, when the reciprocating screw 302 rotates, the scraper 308 can move forward, so that the scraper 308 can contact the inner wall of the sand mixing cylinder 1 to prevent the sand mixing cylinder 1 from sticking together.

[0024] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sand mixing device for molding sand production with anti-caking properties, comprising a mixing cylinder (1), characterized in that, A motor (2) is fixedly connected to the top of the mixing cylinder (1). A rotating shaft (201) is fixedly connected to the output shaft of the motor (2). Two collars (202) are fitted on the surface of the rotating shaft (201). Two support plates (203) are fixedly connected to the surfaces of the two collars (202), and the two support plates (203) are symmetrically arranged. A stirring rod (204) is fixedly connected to the end of the two support plates (203) away from the rotating shaft (201). The stirring rods (204) are located away from the rotating shaft (201). 01) A first storage groove (205) is provided on one side surface. A scraper (308) is slidably connected inside the two first storage grooves (205). A moving mechanism for moving the scraper (308) is provided inside the two support plates (203). Six stirring components (301) are rotatably connected inside the sand mixing cylinder (1). The six stirring components (301) are arranged in pairs. A rotating mechanism for rotating the stirring component (301) is provided on the top of each group of stirring components (301).

2. The anti-adhesion sand mixing device for molding sand production according to claim 1, characterized in that, The moving mechanism includes a second storage slot (206), which is located on one side of the first storage slot (205), and the second storage slot (206) and the first storage slot (205) are interconnected.

3. The anti-adhesion sand mixing device for molding sand production according to claim 2, characterized in that, The second storage slot (206) is rotatably connected to one side of a reciprocating lead screw (302), and a sleeve (307) is fitted on the surface of the reciprocating lead screw (302). The sleeve (307) is fixedly connected to one side of the scraper (308).

4. The anti-adhesion sand mixing device for molding sand production according to claim 3, characterized in that, The rotating mechanism includes a worm (3), which is rotatably connected to the top of the support plate (203). The three stirring components (301) are all sleeved on the surface of the worm (3), and a gear (305) is fixedly sleeved on the top of the worm (3).

5. The anti-adhesion sand mixing device for molding sand production according to claim 4, characterized in that, The gear (305) is fitted with a toothed ring (306), which is fixedly connected to the top side of the mixing cylinder (1). The reciprocating screw (302) is provided with a rotating mechanism for rotating the reciprocating screw (302) on the side near the worm (3).

6. The anti-adhesion sand mixing device for molding sand production according to claim 5, characterized in that, The rotating mechanism includes a worm gear (304), which is fixedly sleeved on the surface of the reciprocating screw (302), and the worm gear (304) and the worm (3) are configured to cooperate with each other. The sand mixing cylinder (1) has a feed inlet (101) on the side near the motor (2), and a discharge outlet is provided at the bottom of the sand mixing cylinder (1).

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