Sand mixing device for casting

Abstract

The utility model discloses a sand mixing device for casting, which comprises a cylinder body, a sand mixing drum is rotatably mounted in the cylinder body, a motor for driving the sand mixing drum to rotate is mounted on the cylinder body, and materials needing to be mixed can uniformly enter the cylinder body through the sand mixing drum. Materials are limited by a second arc-shaped limiting plate and a baffle and enter the position between a first arc-shaped limiting plate and a partition plate, in the rotating process, the materials pass through a sand opening to be mixed in the sand opening, the materials are stirred in the first arc-shaped limiting plate, and part of the mixed materials can reach the back of the second arc-shaped limiting plate when reaching the lower end of a barrel; and the materials which are not guided out can fall on the back of the first arc-shaped plate, and under the rotation of the sand mixing rotary drum, the materials are continuously mixed through sand passing openings of different partition plates under the gravity until the materials are guided out from the discharging port, so that the materials are more fully mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of casting sand mixing, and specifically relates to a casting sand mixing device. Background Art

[0002] A sand mixer is a foundry device used to mix molding sand or core sand. It generally performs the following functions: It evenly mixes old sand, new sand, molding sand binder, and auxiliary materials, ensuring that the binder and auxiliary materials are evenly distributed and effectively coated on the sand surface. The materials needed for casting are a mixture of raw sand, clay, water glass, resin, and other auxiliary materials. By uniformly mixing these materials, the sand molds used for casting can be improved.

[0003] However, in the conventional sand mixer in the prior art, different materials are usually poured directly into the inside of the sand mixer during use, and then stirred and mixed. Different materials are piled together, and it takes a long time to fully mix them, resulting in very low working efficiency. Therefore, a sand mixing device for casting is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a sand mixing device for casting to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a sand mixing device for casting, comprising a cylinder, a sand mixing drum rotatably installed in the cylinder, and a motor driving the sand mixing drum to rotate installed on the cylinder;

[0006] The sand mixing drum includes a rotating rod and a first arc-shaped limit plate and a second arc-shaped limit plate distributed in an annular manner. A ring-shaped partition is installed on the rotating rod, and the partition is connected to the first arc-shaped limit plate. The second arc-shaped limit plate surrounds the outer end of the first arc-shaped limit plate and is staggered. A baffle is installed between the first arc-shaped limit plate and the second arc-shaped limit plate. The outer wall of the partition is provided with evenly distributed sand passing openings. The rotating rod is connected to the output shaft of the motor.

[0007] Preferably, the second arc-shaped limiting plates and the first arc-shaped limiting plates are arranged alternately, and the interval between two adjacent first arc-shaped limiting plates is blocked by the second arc-shaped limiting plates.

[0008] Preferably, the partition is connected to one end of the first arc-shaped limiting plate, and the baffle is located in the extension direction of the partition.

[0009] Preferably, a feed hopper is installed at the upper end of the cylinder, and a discharge port is opened at the lower end of the cylinder.

[0010] The sand mixing device of the present invention has the following advantages: a sand mixing device for casting, which can make the materials to be mixed enter the cylinder evenly through the sand mixing drum, and the materials enter between the first curved limiting plate and the partition through the limitation of the second curved limiting plate and the baffle. During the rotation, the materials pass through the sand opening and are mixed therein, and are stirred inside the first curved limiting plate. Part of the mixed materials will reach the back of the second curved limiting plate when they reach the lower end of the cylinder, and then be discharged through the discharge port, thereby increasing work efficiency. The materials that are not discharged will fall on the back of the first curved plate. Under the rotation of the sand mixing drum, the materials are continuously mixed through the sand openings of different partitions under gravity until they are discharged from the discharge port, making them more fully mixed. The utility model can put a variety of materials into the cylinder at intervals to avoid different materials from piling up together, and then mix the materials therein through the rotation of the sand mixing drum, thereby increasing mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the cylinder of the utility model after it is opened;

[0013] Figure 3 This is a schematic diagram of the sand mixing drum structure of the present utility model;

[0014] Figure 4 This is a side view of the sand mixing drum structure of the present utility model.

[0015] In the figure: 1-cylinder, 2-sand mixing drum, 21-rotating rod, 22-first arc-shaped limit plate, 23-second arc-shaped limit plate, 24-partition plate, 25-baffle, 26-sand passing opening, 3-motor, 4-feed hopper, 5-discharge port. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-4 The utility model provides a technical solution: a sand mixing device for casting, comprising a cylinder 1, a sand mixing drum 2 is rotatably installed in the cylinder 1, and a motor 3 for driving the sand mixing drum 2 to rotate is installed on the cylinder 1;

[0018] The motor 3 drives the sand mixing drum 2 to rotate counterclockwise.

[0019] The sand mixing drum 2 includes a rotating rod 21 and a first arc-shaped limit plate 22 and a second arc-shaped limit plate 23 distributed in an annular manner. A circularly distributed partition 24 is installed on the rotating rod 21. The partition 24 is connected to the first arc-shaped limit plate 22. The second arc-shaped limit plate 23 surrounds the outer end of the first arc-shaped limit plate 22 and is staggered. A baffle 25 is installed between the first arc-shaped limit plate 22 and the second arc-shaped limit plate 23. The outer wall of the partition 24 is provided with evenly distributed sand passing openings 26. The rotating rod 21 is connected to the output shaft of the motor 3.

[0020] The second arc-shaped limiting plates 23 and the first arc-shaped limiting plates 22 are arranged alternately, and the second arc-shaped limiting plates 23 block the gap between two adjacent first arc-shaped limiting plates 22 .

[0021] The partition plate 24 is connected to one end of the first arc-shaped limiting plate 22 , and the baffle 25 is located in the extending direction of the partition plate 24 .

[0022] A feed hopper 4 is installed at the upper end of the cylinder 1 , and a discharge port 5 is opened at the lower end of the cylinder 1 .

[0023] Working principle: When the present invention is used, a variety of materials are placed in the feed hopper 4, the motor 3 is started, and the motor 3 drives the sand mixing drum 2 to rotate. When the gap between the two adjacent second arc-shaped limit plates 23 reaches the feed hopper 4, a variety of materials enter from the channel between the first arc-shaped limit plate 22 and the second arc-shaped limit plate 23, and then during the rotation, the materials pass through the first arc-shaped limit plate 22 and the partition 24 and enter between the two adjacent partitions. During the rotation process and under the gravity of the materials themselves, the materials are mixed through the sand openings 26, so that the materials are fully mixed through the sand openings 26 on multiple different partitions 24. When the materials reach the lower end of the cylinder 1, the materials fall onto the back of the second arc-shaped limit plate 23 due to gravity. After the second arc-shaped limit plate 23 rotates, the materials slide down from the gap between the two second arc-shaped limit plates 23, and the fully mixed materials are discharged from the discharge port 5.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand mixing device for casting, comprising a cylinder, characterized in that: A sand mixing drum is rotatably installed in the cylinder, and a motor driving the sand mixing drum to rotate is installed on the cylinder; The sand mixing drum includes a rotating rod and a first arc-shaped limit plate and a second arc-shaped limit plate distributed in an annular manner. A ring-shaped partition is installed on the rotating rod, and the partition is connected to the first arc-shaped limit plate. The second arc-shaped limit plate surrounds the outer end of the first arc-shaped limit plate and is staggered. A baffle is installed between the first arc-shaped limit plate and the second arc-shaped limit plate. The outer wall of the partition is provided with evenly distributed sand passing openings. The rotating rod is connected to the output shaft of the motor.

2. The sand mixing device for casting according to claim 1, characterized in that: The second arc-shaped limiting plates are arranged alternately with the first arc-shaped limiting plates, and the interval between two adjacent first arc-shaped limiting plates is blocked by the second arc-shaped limiting plates.

3. The sand mixing device for casting according to claim 1, characterized in that: The partition is connected to one end of the first arc-shaped limiting plate, and the baffle is located in the extending direction of the partition.

4. The sand mixing device for casting according to claim 1, characterized in that: A feed hopper is installed at the upper end of the cylinder, and a discharge port is opened at the lower end of the cylinder.

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