Film sealing and attaching device in V-method casting

Abstract

The invention relates to the technical field of V-method casting equipment, in particular to a film sealing and attaching device in V-method casting, the film sealing and attaching device comprises a casting table body, a mounting structure is arranged at the top end of the casting table body, two groups of clamping structures are arranged at each of the four corners of the mounting structure, and a group of sealing structures are arranged at each of the four sides of the mounting structure. The two sides of the casting table body are each provided with a limiting structure, a demolding structure is arranged on one side of the casting table body, a cooling structure is arranged outside the demolding structure, and a protection structure is arranged at the top end of the casting table body. The mounting structure, the clamping structures and the sealing structures are matched for use, a film is pasted to the surface of the casting table body, and the sealing performance of the film is improved; the mounting structure can be conveniently limited through the limiting structures, and the film pasting effect is improved; the cooling structure and the demolding structure are matched for use, the casting table body is demolded, and the demolding effect is improved; and the film can be conveniently supported through the protection structure, and the film integrity is effectively protected.

Description

technical field [0001] The invention relates to the technical field of V-method casting equipment, in particular to a film sealing and laminating device in V-method casting. Background technique [0002] V-method casting and lost foam casting both use vacuum forming, but there is a big difference in the process of the two; it is different from traditional sand casting in that it does not use adhesives, and V-method casting uses plastic film to seal the sand box, relying on The vacuum pumping system draws out the air in the mold, and there is a pressure difference between the inside and outside of the mold, which makes the dry sand dense and forms the required mold cavity. After setting the core, closing the box, and vacuuming the casting, the casting is solidified, and the negative pressure is released, and the mold sand collapses. Get castings. [0003] However, when casting film with V method, the four corners of the film are often directly hung on the screws at the four ...

AI Technical Summary

Problems solved by technology

[0003] However, when casting film with V method, the four corners of the film are often directly hung on the screws at the four corners of the clamping frame. The film is not flattened, and it is easy to affect the integrity of the film; the supporting structures on both sides of the casting table are adjusted by turning the bolts , it is laborious, and it is not convenient to control the distance between the clamping frame and the casting table; the high-temperature film is easy to stick to the surface of the clamping frame, and when the clamping frame rises, it is easy to lift the film and affect the sealing of the film , it is difficult to demould; the film is directly clamped and sealed by the clamping frame and the casting table, and the sealing effect is poor, which affects the internal manufacturing vacuum environment, which in turn affects the casting effect of V-method casting

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