The top box demoulding mechanism and its demoulding method for the rough sand mold of the elliptical cylinder body of the piston ring
A demoulding mechanism and piston ring technology, applied to the top box demoulding mechanism and the demoulding field of the elliptical cylinder blank sand mold of the piston ring, which can solve the waste of materials, the length limitation of the cylindrical elliptical blank, and the production efficiency of the cylindrical elliptical blank Limitation and other issues, to achieve the effect of saving material costs and processing costs, and improving production efficiency
Active Publication Date: 2016-08-17
SHANDONG HENGYUAN PRECISION PARTS
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Problems solved by technology
As the length of the cylindrical elliptical blank increases, the problem of material waste caused by the draft angle becomes more and more serious, resulting in the limitation of the length of the cylindrical elliptical blank and the limitation of the production efficiency of the cylindrical elliptical blank.
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[0028] Such as figure 1 , figure 2 , image 3 , Figure 3A As shown, the top box demoulding mechanism of the piston ring elliptical cylinder rough sand mold provided by the present invention includes a lower box 1 located below, a top box 2 that can be lifted and lowered relative to the lower box 1, and a model part 3, wherein:
[0029] The lower box 1 is composed of a lower base plate 10, an upper box plate 11 and a fixed box body 12. A cylinder 13 is arranged in the fixed box body 12, and a piston rod 14 of the cylinder 13 is fixed on the lower base plate 10. The piston rod 14 is provided with an air passage that communicates with the intake and exhaust ports 101 on the lower base plate 10 (conventional technical means, not shown in the figure);
[0030] The top box 2 is composed of an upper top plate 20 and a sand box 21, the upper top plate 20 is fixedly connected to the top of the cylinder body 15 of the cylinder 13, and can move up and down relative to the lower box ...
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The invention provides a top box demolding mechanism and demolding method of a piston ring elliptic cylinder workblank sand mold. The top box demolding mechanism comprises a lower box, a top box and a mold piece, an air cylinder is arranged in the lower box, the top box is composed of an upper top plate and a sand box, the upper top plate is driven by the air cylinder and can vertically move relative to the lower box, and the sand box is arranged on the upper top plate in a press fitting mode. The mold piece comprises a plurality of elliptic cylinder outer sleeves and a plurality of elliptic cylinder inner cores, and the elliptic cylinder inner cores and the upper top plate move vertically and synchronously. The demolding method mainly comprises the steps that when the air cylinder is started, the upper top plate and the top ends of the elliptic cylinder inner cores are made to move upwards synchronously, and molding sand in the sand box is separated from the elliptic cylinder outer sleeves. According to the mechanism and method, pattern draft is not reserved, material cost and processing cost are lowered, the elliptic cylinder workblank sand molds are formed at a time, the elliptic cylinder workblank sand molds can be cast and formed at a time, and production efficiency is improved.
Description
technical field [0001] The invention relates to a special manufacturing device for a piston ring ellipse cylindrical blank sand mold and a demoulding method thereof. Background technique [0002] The applicant of the present application once filed an application for a patent for invention of "the process of manufacturing piston rings from cylindrical elliptical blanks" and obtained authorization. The "process of manufacturing piston rings from cylindrical elliptical blanks" provides a new process method, by using A cylindrical oval blank is processed into multiple piston ring products to improve production efficiency. [0003] However, the above-mentioned invention patent has produced a new problem, that is, how to efficiently produce a cylindrical elliptical blank. Now it is generally manufactured by die casting, but it is necessary to reserve a draft angle to avoid scratching the surface of the blank during drafting. As the length of the cylindrical elliptical blank incr...
Claims
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IPC IPC(8): B22D29/04
CPCB22D29/04
Inventor 丁来之冯兆红丁业武
Owner SHANDONG HENGYUAN PRECISION PARTS