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Transformation impact case-free tightly molding device and method for molding by using same

A compact and mold-forming technology, applied in casting molding equipment, metal processing equipment, molding machines, etc., can solve the problems of low sand shooting efficiency, difficulty in ensuring appearance quality, poor consistency of sand mold hardness on the surface of the inner cavity of the mold, etc.

Active Publication Date: 2015-03-25
山东时风(集团)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the boxless molding process, both the horizontal parting process and the vertical molding process have developed very rapidly, which can basically meet the needs of generally not very complicated parts, but for more complex parts or very strict requirements on shape geometry and size As far as castings are concerned, there are many problems, such as low sand shooting efficiency, uneven sand shooting, poor consistency of sand mold hardness on the surface of the inner cavity of the mold, and large hardness differences. It is difficult to ensure the appearance quality of castings during the casting and solidification process. There is a considerable distance from precision casting

Method used

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  • Transformation impact case-free tightly molding device and method for molding by using same
  • Transformation impact case-free tightly molding device and method for molding by using same
  • Transformation impact case-free tightly molding device and method for molding by using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Example 1. like figure 1 , Image 6 , Figure 30 As shown, a pressure-changing impact boxless compact molding device, including:

[0091] A left sand box 1 and a right sand box 2, the left sand box 1 and the right sand box 2 are box structures with open front and rear sides; the upper sides of the left sand box 1 and the right sand box 2 Sand guide plates 3 are all provided.

[0092] A replaceable double-sided template 4, the double-sided template is installed on the double-sided template mobile replacement device 41, the double-sided template 4 is located between the left sand box 1 and the right sand box 2 and is kept vertical to the ground, and the double-sided template 4 has The left surface corresponding to the rear side of the left sand box 1 and the right surface corresponding to the front side of the right sand box 2; the left surface and the right surface of the double-sided template 4 are respectively provided with a model 5 .

[0093] A sand box moving d...

Embodiment 2

[0111] Example 2. The difference between this embodiment and Embodiment 1 is that the pressure supply device includes a high-pressure gas source 81; the high-pressure gas source 81 is connected to the cavity 612 of the extrusion plate 602 through a pipeline 83, and a controller 84 is provided on the pipeline 83 ; The front side of the squeeze plate 602 and each push plate 605 are provided with some tension springs 613, before the cavity 612 of the squeeze plate 602 is injected with high-pressure gas, under the effect of the tension spring 613, the pressure plate 607 The front side of the front side is in close contact with the rear side of the partition 604; the extruding plate 602 is provided with a vent valve 614 that can release the gas in the cavity 612.

[0112] like Figures 17 to 21 As shown, the method for molding using the above-mentioned variable pressure impact boxless compact molding device includes the following steps:

[0113] Step 1: Place the model on the dou...

Embodiment 3

[0123] Example 3. The difference between this embodiment and Embodiment 2 is that the tension of the tension spring 613 is different, the farther the distance from the center of the model 5 is, the looser the tension spring is.

[0124] like Figure 22 to Figure 27 As shown, the method for molding using the above-mentioned variable pressure impact boxless compact molding device includes the following steps:

[0125] Step 1: Place the model on the double-sided template 4; move the double-sided template 4 between the left sand box 1 and the right sand box 2 through the double-sided template moving replacement device 41 and keep it perpendicular to the ground; use the sandbox moving device 11 Both the left sand box 1 and the right sand box 2 or one of them move relatively, clamp the double-sided template 4, insert the left horizontal extrusion device 61 into the left sand box 1 from the front side of the left sand box 1, and press the right horizontal extrusion device 61 into th...

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Abstract

The invention discloses a transformation impact case-free tightly molding device and a method for molding by using the transformation impact case-free tightly molding device. The transformation impact case-free tightly molding device comprises a left sand case and a right sand case, a replaceable two-sided plate, a sand case moving device, and a left-right horizontal extrusion device; when the device is used for modeling, the compactness difference in the sand mold cast process is effectively improved by adding sand twice, compressing and exhausting twice, the modelling is precise, the impact is tight, the solid sand effect is good, the energy consumption is low, the efficiency is high, and numerous disadvantages caused by simple air-impacting modelling can be overcome.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a pressure-changing impact boxless compact molding device and a molding method using the device. Background technique [0002] In the casting molding process, the traditional process has lasted for thousands of years and is still in use. However, with the rapid development of the foundry industry, the casting process methods produced in the era of large industries need to adapt to the needs of mechanized production, from shock molding, microseismic compaction molding, to air blast molding of larger castings and smaller castings A reasonable casting method is required for the boxless shape. Especially in the boxless molding process, both the horizontal parting process and the vertical molding process have developed very rapidly, which can basically meet the needs of generally not very complicated parts, but for more complex parts or very strict requirements on shape geometry and ...

Claims

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Application Information

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IPC IPC(8): B22C15/08
CPCB22C15/08
Inventor 林连华徐海港纪昌勇于子岭张中凯许爱国李汝学王泉
Owner 山东时风(集团)有限责任公司
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