Casting sand mixing device

Abstract

The utility model discloses a casting sand mixing device which comprises a device shell, the top of the device shell is fixedly connected with a driving motor, an output shaft of the driving motor is fixedly connected with a driving shaft through a coupler, and the outer wall of the driving shaft is fixedly connected with a movable frame and stirring blades from top to bottom. The device comprises a device shell, a driving motor, a driving shaft, a movable frame, stirring blades, a movable sliding block, a gear block, a reciprocating screw rod and a driven gear, the outer wall of the movable frame is fixedly connected with a tooth block, the inner wall of the device shell is movably connected with a reciprocating screw rod, and the outer wall of the reciprocating screw rod is fixedly connected with the driven gear. The movable scraping plate is conveniently driven to move up and down in a reciprocating manner in the stirring process, so that the movable scraping plate can conveniently scrape the inner wall of the device shell, and the problem that the casting sand is easily adhered to the inner wall of the device shell during mixing, so that the mixing is not uniform enough is solved.

Description

Technical Field

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

[0002] The basic raw materials for making sand molds are foundry sand and sand binder. The most commonly used foundry sand is siliceous sand. When the high temperature performance of silica sand cannot meet the use requirements, special sands such as zircon sand, chromite sand, and corundum sand are used. Foundry sand needs to be mixed through a mixing device during processing.

[0003] The existing mixing device is inconvenient to scrape the inner wall when in use, so that the foundry sand adheres to the inner wall and is easily mixed unevenly, which brings inconvenience to people's use. This phenomenon has become a problem that needs to be solved urgently by people in this field. Utility Model Content

[0004] The utility model aims to provide a foundry sand mixing device for existing devices to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a foundry sand mixing device, comprising a device shell, the top of the device shell is fixedly connected to a driving motor, the output shaft of the driving motor is fixedly connected to the driving shaft through a coupling, the outer wall of the driving shaft is fixedly connected to a movable frame and a stirring blade from top to bottom, the outer wall of the movable frame is fixedly connected to a tooth block, the inner wall of the device shell is movably connected to a reciprocating screw rod, the outer wall of the reciprocating screw rod is fixedly connected to a driven gear, the outer wall of the reciprocating screw rod is movably connected to a movable slider, and the outer wall of the movable slider is fixedly connected to a movable scraper. By providing the device shell, the driving motor, the driving shaft, the movable frame, the stirring blade, the tooth block, the reciprocating screw rod, the driven gear, the movable slider and the movable scraper, it is convenient to drive the movable scraper to perform reciprocating up and down movement during the stirring process, so as to facilitate the movable scraper to scrape the inner wall of the device shell, solve the problem that the foundry sand is easy to adhere to the inner wall of the device shell during mixing, resulting in uneven mixing, meet people's work needs, and is worthy of popularization and use.

[0006] Furthermore, the interior of the movable frame is a "cross"-shaped structure when viewed from above, and the movable frame forms a rotating structure with the device housing through the driving shaft, which facilitates the effective feeding of casting sand when the movable frame stops rotating.

[0007] Furthermore, the stirring blades are wavy in top view, and are distributed at equal angles along the axial center line of the driving shaft, which is conducive to driving the foundry sand to move irregularly, thereby improving the mixing efficiency.

[0008] Furthermore, the tooth blocks are distributed at equal angles on the outer wall of the movable frame, and the movable frame is meshed with the driven gear through the tooth blocks, which facilitates the movable frame to drive the driven gear to rotate through the tooth blocks.

[0009] Furthermore, the movable slider is distributed at equal angles along the axial center line of the movable scraper, and the movable slider is threadedly connected to the reciprocating screw rod. Since the driven gear cannot revolve, the driven gear drives the movable slider to slide through the thread.

[0010] Furthermore, the movable scraper is a ring-shaped structure, and the outer wall of the movable scraper and the inner wall of the movable scraper fit together, which facilitates the movable scraper to scrape the inner wall of the device shell after sliding.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are: the utility model,

[0012] (1) By providing a device shell, a driving motor, a driving shaft, a movable frame, a stirring blade, a tooth block, a reciprocating screw rod, a driven gear, a movable sliding block and, it is convenient to drive the movable scraper to move up and down reciprocatingly during the stirring process, so that the movable scraper is conducive to scraping the inner wall of the device shell, solving the problem that the casting sand is easy to adhere to the inner wall of the device shell during mixing, resulting in uneven mixing, meeting people's work needs, and worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the vertical section structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the top-sectional structure of the utility model.

[0017] In the figure: 1. device housing; 2. driving motor; 3. driving shaft; 4. movable frame; 5. stirring blade; 6. gear block; 7. reciprocating screw rod; 8. driven gear; 9. movable slider; 10. movable scraper. DETAILED DESCRIPTION

[0018] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a foundry sand mixing device, including a device housing 1, a driving motor 2 is fixedly connected to the top of the device housing 1, the output shaft of the driving motor 2 is fixedly connected to the driving shaft 3 through a coupling, the outer wall of the driving shaft 3 is respectively fixedly connected to a movable frame 4 and a stirring blade 5 from top to bottom, the outer wall of the movable frame 4 is fixedly connected to a gear block 6, the inner wall of the device housing 1 is movably connected to a reciprocating screw rod 7, the outer wall of the reciprocating screw rod 7 is fixedly connected to a driven gear 8, the outer wall of the reciprocating screw rod 7 is movably connected to a movable slider 9, and the movable slider The outer wall of 9 is fixedly connected with a movable scraper 10. By providing a device shell 1, a drive motor 2, a drive shaft 3, a movable frame 4, a stirring blade 5, a tooth block 6, a reciprocating screw rod 7, a driven gear 8, a movable slider 9 and, it is convenient to drive the movable scraper 10 to move back and forth up and down during the stirring process, so as to facilitate the movable scraper 10 to scrape the inner wall of the device shell 1, solves the problem that the casting sand is easy to stick to the inner wall of the device shell 1 during mixing, resulting in uneven mixing, meets people's work needs, and is worthy of promotion and use.

[0020] Furthermore, the interior of the movable frame 4 is a "cross" structure when viewed from above, and the movable frame 4 forms a rotating structure with the device housing 1 through the drive shaft 3, which facilitates the effective feeding of casting sand when the movable frame 4 stops rotating.

[0021] Furthermore, the stirring blades 5 are wavy in top view, and are distributed at equal angles along the axial center line of the driving shaft 3, which is conducive to driving the foundry sand to move irregularly, thereby improving the mixing efficiency.

[0022] Furthermore, the gear blocks 6 are distributed at equal angles on the outer wall of the movable frame 4 , and the movable frame 4 is meshed with the driven gear 8 through the gear blocks 6 , which facilitates the movable frame 4 to drive the driven gear 8 to rotate through the gear blocks 6 .

[0023] Furthermore, the movable slider 9 is distributed at equal angles along the axial center line of the movable scraper 10, and the movable slider 9 is threadedly connected to the reciprocating screw 7. Since the driven gear 8 cannot revolve, the driven gear 8 drives the movable slider 9 to slide through the thread.

[0024] Furthermore, the movable scraper 10 is a ring-shaped structure, and the outer wall of the movable scraper 10 and the inner wall of the movable scraper 10 fit each other, which facilitates the movable scraper 10 to scrape the inner wall of the device housing 1 after sliding.

[0025] When in use, first start the drive motor 2, so that the drive motor 2 drives the drive shaft 3 to rotate, and the drive shaft 3 drives the stirring blade 5 to rotate. Through the wave shape of the stirring blade 5, the stirring blade 5 drives the foundry sand to move irregularly, thereby improving the mixing efficiency. The movable frame 4 drives the driven gear 8 of equal angles to rotate through the tooth block 6, so that the driven gear 8 drives the reciprocating screw rod 7 to rotate. Since the driven gear 8 cannot revolve, the movable scraper 10 cannot rotate, and then the movable slider 9 is limited, so that the reciprocating screw rod 7 drives the movable slider 9 to slide up and down reciprocatingly through the thread, so that the movable slider 9 drives the movable scraper 10 to slide up and down reciprocatingly, and then the inner wall of the device shell 1 is scraped off, thereby solving the problem of uneven mixing caused by the foundry sand sticking to the inner wall.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A foundry sand mixing device, comprising a device housing (1), characterized in that: The top of the device housing (1) is fixedly connected to a driving motor (2); the output shaft of the driving motor (2) is fixedly connected to a driving shaft (3) via a coupling; the outer wall of the driving shaft (3) is respectively fixedly connected to a movable frame (4) and a stirring blade (5) from top to bottom; the outer wall of the movable frame (4) is fixedly connected to a gear block (6); the inner wall of the device housing (1) is movably connected to a reciprocating screw (7); the outer wall of the reciprocating screw (7) is fixedly connected to a driven gear (8); the outer wall of the reciprocating screw (7) is movably connected to a movable slider (9); and the outer wall of the movable slider (9) is fixedly connected to a movable scraper (10).

2. A foundry sand mixing device according to claim 1, characterized in that: The interior of the movable frame (4) is a "cross"-shaped structure when viewed from above, and the movable frame (4) forms a rotating structure with the device housing (1) through the driving shaft (3).

3. A foundry sand mixing device according to claim 1, characterized in that: The stirring blades (5) are wavy in a top view, and the stirring blades (5) are distributed at equal angles along the axial center line of the driving shaft (3).

4. A foundry sand mixing device according to claim 1, characterized in that: The tooth blocks (6) are distributed at equal angles on the outer wall of the movable frame (4), and the movable frame (4) is meshed with the driven gear (8) through the tooth blocks (6).

5. A foundry sand mixing device according to claim 1, characterized in that: The movable slide blocks (9) are distributed at equal angles along the axial center line of the movable scraper (10), and the movable slide blocks (9) are threadedly connected to the reciprocating screw rod (7).

6. A foundry sand mixing device according to claim 1, characterized in that: The movable scraper (10) is a ring-shaped structure, and the outer wall of the movable scraper (10) and the inner wall of the movable scraper (10) are in contact with each other.

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