Drum type sand mixer and sand mixing method thereof

A sand mixer and drum-type technology, which is applied in the cleaning/processing machinery of casting mold materials, casting molding equipment, metal processing equipment, etc., can solve the problem of difficulty in accurately controlling the humidity of sand materials, poor sand mixing quality, and easy loss of auxiliary materials To achieve the effect of improving sand mixing uniformity, good force, and reducing material transportation

Inactive Publication Date: 2016-11-23
许云东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a sand mixing machine and a sand mixing method to solve the existing problems in the existing sand mixing machines, such as dead angle of sand mixing, poor quality of sand mixing, slow reduction of sand temperature, and high price.
[0009] Another object of the present invention is to provide a sand mixer and a sand mixing method to solve the problems in the existing sand mixer that a large amount of auxiliary materials are easy to lose and the humidity of the sand material is difficult to accurately control

Method used

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  • Drum type sand mixer and sand mixing method thereof
  • Drum type sand mixer and sand mixing method thereof
  • Drum type sand mixer and sand mixing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 2 , 3As shown, the sand mixer provided in this embodiment includes a drum 1, which is arranged axially and laterally on the base 2, and the upper part of the side wall of the end face of the drum 1 is provided with a sand material inlet 3 and an auxiliary material inlet 4. The lower part of the side wall of the end face is provided with a discharge port 5 . The upper part of the end face side wall of the drum 1 is also provided with a water inlet 6, and the water inlet 6 is used to add water to the drum to achieve the target humidity. Moreover, the drum 1 in this embodiment is provided with an airtight casing 12 , and a vacuum tube 13 is arranged on the airtight casing 12 , and the vacuum tube 13 is used to extract the gas in the airtight casing 12 . Wherein, the airtight casing 12 can be made of metal material, and those skilled in the art can select the airtight casing of a suitable material according to needs, so that it can meet the requirements of...

Embodiment 2

[0053] This embodiment is a preferred embodiment of Embodiment 1, except for the following differences, the rest of the structure is the same as Embodiment 1. details as follows:

[0054] Such as Figure 4 , 5 As shown, the drum 1 in this embodiment also includes a rolling wheel 14, which can be one or more, and the rolling wheel 14 is arranged between the rotor 7 and the side wall of the drum 1 and is arranged in parallel with the rotor 7. Wheel 14 links to each other with roller drive, and roller 14 rotates under the drive of roller drive. When there are multiple rolling wheels, one of the rolling wheels can be set at the bottom of the drum to realize the rolling and moving functions of the rolling wheels.

[0055] The rotation direction of the rolling wheel 14 in this embodiment is opposite to that of the rotor 7, so that the mixing effect of the sand material is better.

[0056] The side of the rotor 7 in this embodiment is also evenly provided with several scraper mec...

Embodiment 3

[0060] In this embodiment, except that the following parts are different from the above-mentioned embodiment, all the others adopt the same implementation mode as the above-mentioned embodiment, as follows:

[0061] In the drum in the present embodiment, only the roller 14 is used to stir the sand, and there can be one or more rollers. The roller 14 is arranged in the drum and is parallel to the axis of the drum. The drive is connected, and the rolling wheel 14 rotates under the driving of the rolling wheel drive. The sand mixer provided in this embodiment is not provided with a rotor mechanism. When sand mixing is required, the sand mixing is carried out by rollers, and dry mixing or wet mixing can be carried out in conjunction with the rotation of the drum. The roller type sand mixer has good sand mixing quality and sufficient rolling.

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Abstract

The invention provides a drum type sand mixer and a sand mixing method thereof. The sand mixer comprises a drum and an airtight shell. The drum is transversely arranged in the airtight shell in the axis direction. The airtight shell is provided with a vacuum pipe, and the vacuum pipe is used for being connected with vacuumizing equipment so as to pump air in the airtight shell. A rotor and / or a roller are / is further transversely arranged inside the sand mixer. During sand mixing, sand and auxiliary materials are fed into a hopper of a drum, vacuumizing treatment is conducted, drying mixing is conducted, and wet mixing is conducted after vacuum is removed so that mixed sand can be obtained. According to the drum type sand mixer and the sand mixing method thereof, vacuum sand mixing is adopted, so that the influence of air on very light materials is avoided or reduced, the loss that light materials are pumped away by a dust remover is avoided, and sand mixing uniformity is improved. By the adoption of the drum type structure, the drum and the rotor are transversely arranged, a sand mixing dead zone is avoided, the stirring effect is improved, and thus the sand mixing uniformity is improved, the sand mixing quality is improved, and energy consumption is lowered.

Description

technical field [0001] The invention relates to the technical field of casting machinery and equipment, in particular to a sand mixer and a sand mixing method. Background technique [0002] In green sand casting, the quality of molding sand is directly related to the quality of castings and the reject rate of castings. With the development of modern molding technology, the amount of molding sand required is increasing. At present, the largest sand processing in the world requires Provide 1000 tons of molding sand per hour. This puts forward higher and higher requirements on the equipment for mixing molding sand-sand mixer. [0003] Before the 1980s, the sand mixer mainly used the roller-type sand mixer. Due to the rolling and moving effect of the roller, the quality of the mixed molding sand was good, but its mixing and grinding Disc molding sand takes more than 5 minutes. However, as more and more molding sand is required to be mixed by sand mixers, sand mixing per hour ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C5/04
CPCB22C5/0472B22C5/0409
Inventor 许云东
Owner 许云东
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