V-method sand box sealing tool
By designing a V-method sand box sealing fixture, and utilizing the connection structure of the sealing cover, rubber strip, and support ribs, the problem of membrane waste was solved, and air pressure stability and cost savings were achieved.
Patent Information
- Application Number
- CN202520276979.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-20
AI Technical Summary
In existing V-process casting, a thin film needs to be covered after pouring to ensure stable gas pressure, but this leads to material waste. A sealing tool that can replace the film is needed to save costs.
A V-method sand box sealing fixture was designed, including a sealing cover, rubber strips, support ribs and tie ribs, which cover the top of the sand box through a connecting structure to ensure stable air pressure and replace the use of a membrane.
It achieves stable air pressure inside the sand box after pouring, reduces material waste, lowers costs, and has a simple structure with wide applicability.
Smart Images
Figure CN223801507U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sealing tooling technical field, especially relate to V method sand box sealing tooling. BACKGROUND
[0002] V method casting and lost foam casting all adopt vacuum forming, but the process flow of both has big difference, the biggest advantage of distinguishing traditional sand casting is not using binder, V method casting is sealed sand box by plastic film, removes the air in the mould by vacuum pumping system, there is pressure difference between the inside and outside of the mould, makes dry sand compact, forms required cavity, through core, closes the box, pours and extracts vacuum to make the casting solidify, removes the negative pressure, and the sand collapses to obtain the casting.
[0003] At present, after V method casting is completed, in order to ensure product shape and size requirement, a layer of film is usually re-covered on the surface to ensure that the internal air pressure of the sand box is stable and the sealing performance is improved, but this will cause material waste, therefore, a sealing tooling needs to be set to replace the back film covered each time, and cost is saved. UTILITY MODEL CONTENT
[0004] The utility model aims at providing V method sand box sealing tooling to solve the problems in the above background.
[0005] The utility model discloses a V method sand box sealing tooling, including sealing cover, four rubber strips, support rib and drawbar, the periphery of sealing cover bottom end is connected with four rubber strips respectively, the inner chamber of sealing cover is connected with support rib through drawbar, support rib is connected with four rubber strips, and the inner chamber wall of sealing cover is connected with drawbar.
[0006] In the V method sand box sealing tooling described above, the top of the sealing cover is provided with two symmetrically distributed lifting handles.
[0007] In the V method sand box sealing tooling described above, the support rib is composed of five horizontal steel bars and two longitudinal steel bars.
[0008] In the V method sand box sealing tooling described above, two of the four rubber strips are equal in length to the length of the sealing cover, and the other two of the four rubber strips are equal in length to the width of the sealing cover.
[0009] Compared with the prior art, the V-method sand box sealing tool has the advantages that: the four rubber strips are connected with the bottom end of the sealing cover respectively through the four rubber strips, the supporting ribs are connected with the inner cavity of the sealing cover through the pull bars, the supporting ribs are connected with the four rubber strips, the pull bars are connected with the inner cavity wall of the sealing cover, and the sealing cover is covered on the top of the sand box, so that the use requirement is met, the internal air pressure of the sand box is stable after pouring is completed, the thin film can be replaced, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 is a structural schematic view of the V-method sand box sealing tool.
[0011] Figure 2 is a structural schematic view of the supporting rib of the V-method sand box sealing tool.
[0012] In the drawing, 1 is a sealing cover, 2 is a lifting handle, 3 is a rubber strip, 4 is a supporting rib, and 5 is a pull bar. DETAILED DESCRIPTION
[0013] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0014] As shown in Figure 1 and Figure 2 , the utility model discloses a V-method sand box sealing tool.
[0015] Embodiment: the sealing tool comprises a sealing cover 1, four rubber strips 3, a supporting rib 4 and a pull bar 5, the bottom end of the sealing cover 1 is connected with the four rubber strips 3 respectively at four circumferences, the supporting rib 4 is connected with the inner cavity of the sealing cover 1 through the pull bar 5, the supporting rib 4 is connected with the four rubber strips 3, and the pull bar 5 is connected with the inner cavity wall of the sealing cover 1.
[0016] Among them: the supporting rib 4 is composed of five horizontal steel strips and two longitudinal steel strips.
[0017] Further, the length of two rubber strips 3 of the four rubber strips 3 is equal to the length of the sealing cover 1, and the length of the other two rubber strips 3 of the four rubber strips 3 is equal to the width of the sealing cover 1.
[0018] In the above embodiment, in order to better lift the sealing cover 1 and transport it to the sand box position, the top end of the sealing cover 1 is provided with two symmetrically distributed lifting handles 2.
[0019] In use: after the product pouring is completed, the sealing tool is hoisted to the upper part of the sand box through the labor-saving wall, the upper surface of the sand box is ensured to be in contact with the rubber strip 3, the use requirement is ensured, the sealing performance of the tool and the sand box is ensured through the rubber strip 3, so that the internal air pressure of the sand box is stable, the tool can be used in cooperation with tools of different sizes according to different sand boxes, and the application range is wide.
[0020] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the appended claims.
Claims
1. A V-process sand box sealing tooling, comprising a sealing cover (1), four rubber strips (3), a supporting rib (4) and a pulling rib (5), characterized in that, The bottom end of the sealing cover (1) is connected with four rubber strips (3) respectively, the supporting rib (4) is connected with the inner cavity of the sealing cover (1) through the pull rib (5), the supporting rib (4) is connected with the four rubber strips (3), and the pull rib (5) is connected with the inner cavity wall of the sealing cover (1).
2. The V-process sand box sealing tooling of claim 1, wherein, Two symmetrically-distributed hanging handles (2) are arranged at the top end of the sealing cover (1).
3. The V-process sand box sealing tooling of claim 1, wherein, The supporting rib (4) is composed of five transverse steel strips and two longitudinal steel strips.
4. The V-process sand box sealing tooling of claim 1, wherein, The lengths of two rubber strips (3) of the four rubber strips (3) are equal to the length of the sealing cover (1), and the lengths of the other two rubber strips (3) of the four rubber strips (3) are equal to the width of the sealing cover (1).