Foundry moving muller

Abstract

The utility model discloses a casting mobile sand mixer, including rotating seat, lifting screw conveyor and rotating screw conveyor, lifting screw conveyor connects on rotating seat, rotating screw conveyor feed end rotatory connection is on lifting screw conveyor discharge end, including dustproof device, dustproof device connects on rotating screw conveyor, a kind of casting mobile sand mixer of the utility model, its simple structure, it is convenient and practical to be through dust guide pipe and the dust generated when guiding sand are quickly sucked out, avoid the dust situation when sand fills mould, reach the purpose of guaranteeing working environment.

Description

Technical Field

[0001] This utility model belongs to the field of sand mixers, specifically relating to a mobile sand mixer for casting. Background Technology

[0002] The twin-arm sand mixer is a type of sand mixer that produces molding sand with good quality. It mainly consists of a base, a large arm, and a small arm. One end of the large arm is mounted on the base via a rotating mechanism, while the small arm is positioned below the other end of the large arm via the same mechanism. The large arm can rotate around the base, and the small arm can rotate around the front end of the large arm. A dry sand conveying device is installed on the large arm, and a high-speed mixing cylinder is located inside the small arm. Dry sand is conveyed to the feed inlet of the high-speed mixing cylinder via the dry sand conveying device. The side wall of the high-speed mixing cylinder has a hardener inlet and a resin inlet. The hardener, dry sand, and resin are thoroughly mixed at high speed within the high-speed mixing cylinder, and finally discharged from the sand outlet of the small arm, resulting in fast sand output. However, the sand mixer also has significant drawbacks. A large amount of dust is generated at the sand outlet, and the faster the sand output, the greater the dust production. Furthermore, workers need to compact the sand when filling the molds to reduce the amount of secondary sand filling, leading to prolonged exposure to dust for employees. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a casting mobile sand mixer, which has a simple structure and is convenient and practical. It quickly sucks out the dust generated during sand guiding through the dust guide pipe, so as to avoid dust when sand fills the mold and achieve the purpose of ensuring the working environment.

[0004] A casting mobile sand mixer includes a rotating base, a lifting screw conveyor, and a rotating screw conveyor. The lifting screw conveyor is connected to the rotating base, and the feed end of the rotating screw conveyor is rotatably connected to the discharge end of the lifting screw conveyor. A dustproof device is included and connected to the rotating screw conveyor. The dustproof device includes a guide cylinder, a dust guide pipe, steel cables, steel cable guide devices, a spring-loaded fixing plate, a spring, an adjusting fixing plate, and a pull rod. One end of the guide cylinder is connected to the dust guide pipe, and the other end is connected to the discharge end of the rotating screw conveyor. Several steel cable guide devices are respectively installed on both sides of the rotating screw conveyor for traction of the steel cables. Two spring-loaded fixing plates are respectively connected to both sides of the rotating screw conveyor. One end of the spring is connected to the spring-loaded fixing plate, and the other end is connected to the adjusting fixing plate. One end of each of the two steel cables is connected to the dust guide pipe, and the other end passes sequentially through the spring-loaded fixing plate, the spring, and the adjusting fixing plate and is connected to the pull rod. The adjusting fixing plate is connected to the adjusting fixing plate.

[0005] Preferably, the dust guide tube includes an inner tube, an outer tube, and a negative pressure tube. The inner tube is disposed inside the outer tube, the negative pressure tube is connected to the outer tube, and the outer tube has a plurality of dust suction holes.

[0006] Preferably, the cable guiding device includes V-shaped guide wheels and a guide fixing frame, with several V-shaped guide wheels symmetrically connected in pairs to the guide fixing frame.

[0007] Preferably, a traction pipe is connected to the guide fixing frame.

[0008] Beneficial effects:

[0009] (1) The casting mobile sand mixer of this utility model has a simple structure and is convenient and practical. It quickly sucks out the dust generated during sand guiding through the dust guide pipe, avoids dust when sand fills the mold, and achieves the purpose of ensuring the working environment.

[0010] (2) The casting mobile sand mixer of this utility model raises and lowers the dust guide pipe by pulling the steel cable, so as to change the position of the discharge port of the rotating screw conveyor. At the same time, the spring can ensure that the dust guide pipe descends stably and quickly, so as to control the dust guide pipe to contact the filling part quickly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a mobile sand mixer;

[0012] Figure 2 This is a schematic diagram of the dustproof device.

[0013] Figure 3 This is a schematic diagram of the dust collection pipe.

[0014] 1-Rotating seat, 2-Lifting screw conveyor, 3-Rotating screw conveyor, 4-Dustproof device, 41-Guide cloth cylinder, 42-Dust guide pipe, 43-Steel cable, 44-Steel cable guide device, 45-Rebound fixing plate, 46-Spring, 47-Adjusting fixing plate, 48-V-type guide wheel, 49-Guide fixing frame, 410-Tie rod, 411-Traction pipe, 412-Inner pipe, 413-Outer pipe. Detailed Implementation

[0015] The embodiments of this utility model are further described below with reference to the accompanying drawings.

[0016] Example 1

[0017] like Figures 1 to 3As shown; a casting mobile sand mixer includes a rotating base 1, a lifting screw conveyor 2, and a rotating screw conveyor 3. The lifting screw conveyor 2 is connected to the rotating base 1, and the feed end of the rotating screw conveyor 3 is rotatably connected to the discharge end of the lifting screw conveyor 2. It includes a dustproof device 4 connected to the rotating screw conveyor 3. The dustproof device 4 includes a guide pipe 41, a dust guide pipe 42, a steel cable 43, a steel cable guide device 44, a spring-loaded fixing plate 45, a spring 46, an adjusting fixing plate 47, and a pull rod 410. One end of the guide pipe 41 is connected to the dust guide pipe 42, and the other end is connected to the discharge end of the rotating screw conveyor 3. Several steel cable guide devices 44 are respectively installed on both sides of the rotating screw conveyor 3 and used to pull the steel cable 43. Two spring-loaded fixing plates 45 are respectively connected to the rotating base 1. On both sides of the rotary screw conveyor 3, one end of the spring 46 is connected to the spring-loaded fixed plate 45 and the other end is connected to the adjusting fixed plate 47. One end of each of the two steel cables 43 is connected to the dust guide pipe 42, and the other end passes through the spring-loaded fixed plate 45, the spring 46, and the adjusting fixed plate 47 in sequence and is connected to the pull rod 410. The adjusting fixed plate 47 is connected to the adjusting fixed plate 47. The dust guide pipe 42 includes an inner pipe 412, an outer pipe 413, and a negative pressure pipe. The inner pipe 412 is set inside the outer pipe 413, and the negative pressure pipe is connected to the outer pipe 413. Several dust suction holes are opened on the outer pipe 413. The steel cable guiding device 44 includes a V-shaped guide wheel 48 and a guide fixing frame 49. Several V-shaped guide wheels 48 are symmetrically connected to the guide fixing frame 49 in pairs. A traction pipe 411 is connected to the guide fixing frame 49.

[0018] The rotating seat 1, lifting screw conveyor 2, and rotating screw conveyor 3 are existing technologies and will not be described in detail here. Specifically, when an employee pulls the lever 410, the lever 410 drives two steel cables 43, which in turn drive the dust guide pipe 42 to rise and fall. The two steel cables 43 ensure the stable movement of the dust guide pipe 42 during its rise and fall. When the steel cables 43 are pulled, the adjusting fixing plate 47 is simultaneously driven by the steel cables 43. The adjusting fixing plate 47 then stretches the spring 46, allowing the dust guide pipe 42 to descend rapidly under the action of the spring 46. The steel cables 43 are pulled by the two symmetrical V-shaped guide wheels 48 on the guide fixing frame 49. The cable 43 is connected to the negative pressure device through the negative pressure pipe, creating a negative pressure in the space between the inner pipe 412 and the outer pipe 413. This draws the dust raised around the dust guide pipe 42 into the space between the inner pipe 412 and the outer pipe 413 through the dust suction hole, and then out through the negative pressure pipe.

[0019] The specific embodiments of this utility model have been described in detail above, but they are merely examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A casting mobile sand mixer, comprising a rotating base (1), a lifting screw conveyor (2), and a rotating screw conveyor (3), wherein the lifting screw conveyor (2) is connected to the rotating base (1), and the feed end of the rotating screw conveyor (3) is rotatably connected to the discharge end of the lifting screw conveyor (2), characterized in that: The system includes a dustproof device (4) connected to a rotary screw conveyor (3). The dustproof device (4) includes a guide tube (41), a dust guide pipe (42), a steel cable (43), a steel cable guide device (44), a rebound fixing plate (45), a spring (46), an adjusting fixing plate (47), and a pull rod (410). One end of the guide tube (41) is connected to the dust guide pipe (42), and the other end is connected to the discharge end of the rotary screw conveyor (3). Several steel cable guide devices (44) are respectively installed on the rotary screw conveyor. The conveyor (3) is used on both sides for traction steel cables (43). Two spring-loaded fixing plates (45) are respectively connected to both sides of the rotary screw conveyor (3). One end of the spring (46) is connected to the spring-loaded fixing plate (45) and the other end is connected to the adjusting fixing plate (47). One end of the two steel cables (43) is connected to the dust guide pipe (42) and the other end passes through the spring-loaded fixing plate (45), the spring (46) and the adjusting fixing plate (47) in sequence and is connected to the pull rod (410). The adjusting fixing plate (47) is connected to the adjusting fixing plate (47).

2. The casting mobile sand mixer as described in claim 1, characterized in that: The dust guide tube (42) includes an inner tube (412), an outer tube (413) and a negative pressure tube. The inner tube (412) is disposed inside the outer tube (413), and the negative pressure tube is connected to the outer tube (413). The outer tube (413) has a plurality of dust suction holes.

3. A casting mobile sand mixer as described in claim 2, characterized in that: The cable guide device (44) includes a V-shaped guide wheel (48) and a guide fixing frame (49), with several V-shaped guide wheels (48) symmetrically connected in pairs to the guide fixing frame (49).

4. A casting mobile sand mixer as described in claim 3, characterized in that: The guide fixing frame (49) is connected to a traction pipe (411).

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