Sand core limiting type casting mold
By using a sand core limiting design with locating pins and screw holes in the casting mold, the problem of sand core floating caused by liquid buoyancy was solved, thus improving the product yield.
Patent Information
- Application Number
- CN202423088956.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-15
AI Technical Summary
The buoyancy of the liquid poured into the casting mold can easily cause the sand core structure to float and rise, resulting in product scrap.
A sand core limiting casting mold is used. The sand core is fixed by setting positioning pins and screw holes on the sand core and using screws to connect it, thus preventing the influence of liquid buoyancy.
It effectively prevents the sand core from being lifted by the buoyancy of the liquid, reducing the defect rate and improving the product yield.
Smart Images
Figure CN223932532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting mold technology, and in particular to a sand core limiting casting mold. Background Technology
[0002] A casting mold is a tool used to create a part's structural shape. This shape is made from a readily formable material, which is then placed inside a sand mold. This creates a cavity in the sand mold that matches the dimensions of the part. A fluid is then poured into this cavity, and after cooling and solidifying, a part with the exact same shape and structure as the mold is formed. Casting molds are a crucial part of the casting process.
[0003] The casting mold involves pouring liquid into the mold and allowing it to cool and solidify. During the pouring process, the buoyancy of the liquid can easily affect the structure of the sand core in the mold, causing the sand core structure to float and rise, which in turn leads to the scrapping of the product. Utility Model Content
[0004] The purpose of this invention is to provide a sand core limiting casting mold.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A sand core limiting casting mold includes a sand core upper mold, a sand core lower mold disposed opposite to one side of the sand core upper mold, a sand core component disposed inside the sand core upper mold and the sand core lower mold, a positioning pin disposed at the end wall of the sand core component, a screw hole disposed in the positioning pin, and a screw disposed in the screw hole to position the sand core component.
[0007] Preferably, the locating pin is threadedly connected to the screw via a screw hole.
[0008] Preferably, the sand core component is divided into two parts that fit together and snap on each other.
[0009] Preferably, the screw is screwed into the screw hole, so that the upper and lower parts of the sand core are engaged and locked in place.
[0010] This utility model has at least the following beneficial effects:
[0011] Screws are threaded through screw holes at the sand core and positioning pin locations to prevent the sand core from being lifted by the poured liquid in the mold cavity, thus avoiding buoyancy and reducing the defect rate. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the present invention;
[0014] Figure 2 for Figure 1 Schematic diagram of the sand core upper mold and sand core components;
[0015] Figure 3 for Figure 1 A schematic diagram of a screw;
[0016] Figure 4 for Figure 1 Schematic diagram of the sand core mold and sand core components.
[0017] In the diagram: 1. Upper sand core mold; 2. Lower sand core mold; 3. Sand core component; 4. Locating pin; 5. Screw hole; 6. Screw. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0019] Please see Figure 1-4 This utility model provides a technical solution for a sand core limiting casting mold:
[0020] like Figure 1-4 As shown, a sand core limiting casting mold includes a sand core upper mold 1, a sand core lower mold 2 opposite to one side of the sand core upper mold 1, and a sand core component 3 inside the sand core upper mold 1 and the sand core lower mold 2. The sand core component 3 is divided into two parts that fit together and snap together. A positioning pin 4 is threadedly connected to a screw 6 through a screw hole 5. The positioning pin 4 is inserted through the end wall of the sand core component 3. The screw 6 is screwed into the screw hole 5 so that the two parts of the sand core component 3 fit together and snap together and are tightly fixed in place. One end of the positioning pin 4 is connected to the sand core upper mold 1, and the end of the sand core upper mold 1 away from the positioning pin 4 is connected to the screw 6 so that the sand core component 3 is positioned and cannot be lifted by the buoyancy of the liquid being poured.
[0021] like Figure 1 and Figure 2 The positioning pin 4 shown has a screw hole 5 through which a screw 6 is placed, so that the sand core 3 is positioned.
[0022] Working principle:
[0023] Insert screw 6 into screw hole 5 to position and connect positioning pin 4 and sand core 3. When sand core upper mold 1 and sand core lower mold 2 are closed, liquid is poured into sand core upper mold 1 and sand core lower mold 2 so that the buoyancy of the liquid cannot lift sand core 3, thereby improving the yield.
[0024] Afterwards, the upper sand core mold 1 and the lower sand core mold 2 are closed together, forming a mold cavity. Liquid is poured into the mold cavity to form the material part.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sand core limiting casting mold, comprising a sand core upper mold (1), characterized in that, The upper sand core mold (1) is provided with a lower sand core mold (2) on one side. The upper sand core mold (1) and the lower sand core mold (2) are provided with sand core components (3) inside. A positioning pin (4) is provided at the end wall of the sand core component (3). A screw hole (5) is provided in the positioning pin (4). A screw (6) is placed in the screw hole (5) to position the sand core component (3). The positioning pin (4) is threadedly connected to the screw (6) through the screw hole (5). The sand core component (3) is divided into two parts that fit together and are locked. The screw (6) is screwed into the screw hole (5) to lock the two parts of the sand core component (3) in place.