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Top-bottom bidirectional uniform sand ejection casting and modeling device and method for manufacturing sand mold by device

A sand casting and uniform technology, applied in the field of top-bottom two-way uniform sand shooting casting molding device, can solve the problems of low sand shooting efficiency, difficulty in ensuring appearance quality, low sand shooting uniformity, etc.

Active Publication Date: 2015-02-25
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 big problems, such as low sand shooting efficiency, low sand shooting uniformity, 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 pouring and solidification process. There is a considerable distance between casting precision and precision casting

Method used

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  • Top-bottom bidirectional uniform sand ejection casting and modeling device and method for manufacturing sand mold by device
  • Top-bottom bidirectional uniform sand ejection casting and modeling device and method for manufacturing sand mold by device
  • Top-bottom bidirectional uniform sand ejection casting and modeling device and method for manufacturing sand mold by device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Example 1. Such as Figure 1 to Figure 4 As shown, the top and bottom two-way uniform sand-shot casting molding device is characterized in that: the molding device includes:

[0077] 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 The square holes of the sand shooting boards and the right sides are all provided with the sand shooting board square holes, and the sand shooting board 3 is installed on the square holes of the sand shooting boards; the bottom surface of the sand shooting board 3 is a curved surface. The sand-shooting board 3 is provided with several square holes 91 with quadrilateral cross-sections. The square holes are respectively perpendicular to the bottom surface where the holes are located. Such as Figure 18 As shown, an opening and closing device is provided on the sand shooting board 3, and the...

Embodiment 2

[0087] Example 2. The only difference between this embodiment and embodiment 1 is: as Figure 5 , Figure 6 As shown, the dense adjustment device includes an elastic adjustment plate, and the elastic adjustment plate 616 is arranged on the side of the extrusion plate 602 close to the model 5 and has the same size as the side of the extrusion plate 602; The board is made of 50-70% polyester, 10-20% isocyanate, 10-20% polyol, etc. by hot pressing. The elastic regulating plate 616 can fine-tune the compactness of the molding sand.

Embodiment 3

[0088] Example 3. such as 7 to figure 1 As shown, as shown, the extruded plate is provided with a partition 604, and the partition 604 is perpendicular to the bottom surface of the extruded plate 602; the inner surface and the outer surface of the partition 604 are horizontally provided with several horizontal plates 608, and the partition The inner and outer surfaces of 604 are vertically provided with several vertical plates 609, and the horizontal plates and vertical plates cross each other to form several grids 611; the centroid of each grid 611 on the partition 604 is provided with a hole 610, and the inside of the hole 610 is horizontal. A connecting rod 606 is installed; the grille 611 on the outer side of the partition 604 is provided with a pressing plate 607 adapted to its shape, and the grille on the inner side of the partition is provided with a push plate 605 adapted to its shape. The plates 605 are connected by connecting rods 606; a cavity 612 is provided betwe...

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Abstract

The invention discloses a top-bottom bidirectional uniform sand ejection casting and modeling device and a method for manufacturing a sand mold by the device. The top-bottom bidirectional uniform sand ejection casting and modeling device comprises a left sand box, a right sand box, a replaceable double-sided mold plate, a sand box moving device, a left and right horizontal extruding device and a top-bottom bidirectional vertical sand ejection device. When the sand mold is manufactured by adopting the top-bottom bidirectional uniform sand ejection casting and modeling device, sand is added and compressed twice and gas is exhausted, so that the density differences in the sand mold casting process are reduced greatly; according to the top-bottom bidirectional uniform sand ejection casting and modeling device, the molding is accurate, firm impaction is realized, the sand compaction effect is good, the energy consumption is low, the efficiency is high, and multiple defects caused by pure air impulse modeling can be overcome.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a top-bottom two-way uniform sand-shooting casting molding device and a method for manufacturing sand molds 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 requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C15/24
CPCB22C15/24
Inventor 刘成强徐海港纪昌勇于子岭张中凯林堂国许爱国李汝学刘兴明
Owner 山东时风(集团)有限责任公司
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