Anti-rotation crack-arresting sprue cup
By designing an inverted bell-shaped structure that prevents spin-proof cracking, a trumpet-shaped structure and an overflow gate cup, the quality problems caused by the prone to cracking of the gate cup and the rotation of the metal liquid during the casting process are solved, and efficient metal liquid flow control and casting quality improvement are achieved.
Patent Information
- Application Number
- CN202420573305.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-22
AI Technical Summary
During the casting process, existing gate cups are prone to cracking, causing metal liquid to flow out, and the metal liquid is prone to rotate, turbulence, vortex or interruption, forming inclined pores, affecting the quality of the casting.
An anti-spinning gate cup is designed, which includes a cup body with a wide upper and narrow upper bell structure, a trumpet-like structure and an overflow port. The inverted bell-shaped structure prevents metal liquid from rotating, the trumpet-shaped structure prevents metal liquid from splashing, and controls the solidification height of metal liquid in the gate cup through the overflow port to prevent cracking.
Effectively prevent metal liquid from rotating, avoid air rolling, improve casting quality, simplify operation, and reduce production costs.
Smart Images
Figure CN222626176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal casting, in particular to an anti-rotation and anti-crack pouring cup. Background Art
[0002] Casting is a basic industry, widely used in machinery, metallurgy, power stations, automobiles, shipbuilding, chemicals and national defense. In the field of internal combustion engines and heavy machinery, castings account for 70%-90% of the weight of the equipment. In the national economy and various industries, castings have been widely used and play an important and irreplaceable role. With the development of the national economy and the world economy, the demand for castings will increase and the scope of demand will become wider and wider. In the casting process, it is usually necessary to use a pouring cup to introduce the molten metal from the furnace into the casting mold. In order to effectively control the flow rate and direction of the molten metal and avoid the generation of pores and defects, pouring cups of different shapes and sizes need to be used under different working conditions.
[0003] At present, the casting process often uses a cast iron type pouring cup, which is complicated to operate and has high requirements for pouring technology. The pouring cup is easy to crack during the pouring process, causing the molten metal to flow out. At the same time, during the pouring process, the molten metal is prone to turbulence, eddy current or interruption of flow, which may cause gas to be drawn in, forming entrapped pores in the casting, affecting product quality. Therefore, there is an urgent need for a pouring cup that can prevent the molten metal from rotating, is easy to operate, and can be produced in large quantities. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-rotation and anti-cracking pouring cup in response to the above-mentioned problems that currently exist. By setting an inverted bell-shaped structure design that is wide at the top and narrow at the bottom, the molten metal can be effectively prevented from rotating during pouring, thereby solving the problem of poor casting quality caused by air entrainment due to rotation of the molten metal.
[0005] The technical solution of the utility model is as follows:
[0006] A rotation-proof and crack-stopping pouring cup, characterized in that it comprises a cup body and a cup bottom, wherein the cup body is a hollow inverted bell-shaped structure that is wide at the top and narrow at the bottom to prevent the molten metal from rotating; a trumpet-shaped structure is provided at the cup mouth of the cup body to prevent the molten metal from splashing; an overflow port is provided on the trumpet-shaped structure; the cup bottom is provided at the bottom of the cup body, and the connection between the cup bottom and the cup body is a step-shaped boss structure, and the cross-sectional area of the cup bottom is smaller than the cross-sectional area of the bottom surface of the cup body.
[0007] Furthermore, the inner wall of the hollow inverted bell-shaped structure of the cup body is a curved structure.
[0008] Furthermore, the trumpet-shaped structure is fixedly connected to the top of the cup body, and the trumpet-shaped structure is an expanded structure connected to the cup mouth and inclined outward.
[0009] Furthermore, the central axis of the trumpet-shaped structure coincides with the central axis of the cup body.
[0010] Furthermore, the bottom of the overflow port is a sloped structure with an inner surface higher than an outer surface.
[0011] Furthermore, the overflow port has a shape of a rectangle, a trapezoid, a circle, or a V-shape.
[0012] Furthermore, the overflow port is a trapezoidal shape that is wider at the top and narrower at the bottom.
[0013] Furthermore, the raw material for preparing the pouring cup is one of quartz sand, resin sand, clay sand, coated sand, and metal.
[0014] Furthermore, the cup bottom is connected to the sprue.
[0015] Compared with the existing technology, the beneficial effects of the utility model are:
[0016] 1. An anti-rotation and anti-crack pouring cup, which effectively prevents the molten metal from rotating during pouring by setting a cup body with an inverted bell-shaped structure that is wide at the top and narrow at the bottom, and solves the problem of poor casting quality caused by air entrainment due to rotation of the molten metal;
[0017] 2. An anti-rotation and anti-crack pouring cup, with a trumpet-shaped structure at the upper end of the cup body to prevent the metal liquid from splashing. At the same time, the trumpet-shaped structure is used to widen the diameter of the upper end of the pouring cup, so that the ladle can be aligned with the pouring cup during pouring, which greatly saves the pouring time;
[0018] 3. An anti-rotation and anti-crack pouring cup. The overflow port set on the cup body can not only limit the pouring height, which is conducive to subsequent unpacking and reduces the waste of molten metal, but also prevent the pouring cup from cracking during the pouring process. At the same time, the bottom of the overflow port is sloped to allow the molten metal to flow out, so as to avoid the molten metal from getting stuck in the pouring cup after solidification, which is not conducive to unpacking.
[0019] 4. An anti-rotation and anti-cracking pouring cup, which has a simple structure, is easy to operate, can be prepared in large quantities, and the raw material is quartz sand, which greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The figure is a schematic diagram of the overall structure of a pouring cup that prevents rotation and cracking.
[0021] Figure 2 The figure is a schematic cross-sectional diagram of the overall structure of a pouring cup that prevents rotation and cracking.
[0022] Figure numerals: 1-overflow port, 2-trumpet-shaped structure, 3-cup body, 4-cup bottom. DETAILED DESCRIPTION
[0023] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0024] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0025] See also Figure 1-2 A rotation-proof and crack-stopping pouring cup comprises a cup body 3 and a cup bottom 4, wherein the cup body 3 is a hollow inverted bell-shaped structure which is wide at the top and narrow at the bottom to prevent the molten metal from rotating; a trumpet-shaped structure 2 is arranged at the cup mouth of the cup body 3 to prevent the molten metal from splashing; an overflow port 1 is arranged on the trumpet-shaped structure 2; the cup bottom 4 is arranged at the bottom of the cup body 3, and the connection between the cup bottom 4 and the cup body 3 is a stepped boss structure, and the cross-sectional area of the cup bottom 4 is smaller than the cross-sectional area of the bottom surface of the cup body 3.
[0026] The inner wall of the hollow inverted bell-shaped structure of the cup body 3 is an arc-shaped structure. The inverted bell-shaped inner wall structure can prevent the molten iron from spinning out of the pouring cup, so that the molten iron can enter the mold cavity smoothly.
[0027] The trumpet-shaped structure 2 is fixedly connected to the top of the cup body 3, and the trumpet-shaped structure 2 is an outwardly flared structure connected to the cup mouth. Compared with the inverted bell-shaped inner wall structure, the trumpet-shaped structure 2 is shaped like an inverted trumpet, so it is called the trumpet-shaped structure 2. The trumpet-shaped structure 2 can be large or small. The function is that the molten iron flows in from the trumpet-shaped structure 2, which is more convenient. The larger the upper mouth, the more convenient it is for workers to align when pouring, which reduces the difficulty of operation and reduces the alignment time; at the same time, the trumpet-shaped structure 2 prevents the molten metal from splashing.
[0028] The central axis of the trumpet-shaped structure 2 coincides with the central axis of the cup body 3 .
[0029] The bottom of the overflow port 1 is a sloped structure with an inner surface higher than an outer surface. The function of the overflow port 1 is to control the height of the molten iron in the pouring cup after solidification. If it is too high, it will interfere with the equipment stroke and waste molten iron. When the molten iron reaches this height, it will flow out along the hole, which is conducive to subsequent unpacking, reduces the waste of molten metal, and prevents the pouring cup from cracking during the pouring process. At the same time, the bottom of the overflow port is sloped to allow the molten metal to flow out, so as to prevent the molten metal from getting stuck in the pouring cup after solidification, which is not conducive to unpacking.
[0030] The overflow port 1 has a shape of a rectangle, a trapezoid, a circle, or a V shape.
[0031] The overflow port 1 is in the shape of a trapezoid that is wide at the top and narrow at the bottom.
[0032] The raw material for preparing the pouring cup is one of quartz sand, resin sand, clay sand, coated sand and metal.
[0033] The cup bottom 4 is connected to the sprue.
[0034] In another specific embodiment, Figure 1 , Figure 2 , provides an anti-rotation and anti-cracking pouring cup, the integrated pouring cup includes a V-shaped overflow port 1 on the top side, a trumpet-shaped structure 2 on the upper end, and an inverted bell-shaped arc surface inside the cup body.
[0035] like Figure 1 As shown, an overflow port 1 is opened at a distance from the top. The overflow port 1 is a trapezoidal shape that is wide at the top and narrow at the bottom. During pouring, the same molten metal flows in, and the excess molten metal is discharged from the overflow port 1, which reduces the stress concentration of the pouring cup and effectively prevents cracking; a trumpet-shaped structure 2 is set at the top of the pouring cup, which can expand the upper diameter of the pouring cup, reduce the technical requirements during pouring, and prevent the molten metal from splashing; the inner surface structure of the pouring cup is an inverted bell-shaped structure, which can effectively prevent turbulence, eddy currents, swirling and the like from occurring during the pouring of the molten metal.
[0036] like Figure 1 As shown, the bottom 4 of the pouring cup is provided with concave and convex steps to ensure contact with the upper cavity of the mold, and the pouring gate is tightly connected with the upper end of the sprue. The pouring cup is produced by the iron mold sand coating process, which is simple to operate and has high production efficiency. The pouring cup material is quartz sand.
[0037] The utility model also includes a pouring method for an anti-rotation and anti-cracking pouring cup, comprising the following steps:
[0038] Insert the bottom of the pouring cup into the casting cavity and make it in close contact with the sprue. At the same time, place a layer of coated sand around the pouring cup to prevent the pouring cup from tilting during the pouring process.
[0039] Start pouring, the liquid metal enters the sprue through the bottom of the pouring cup, and then enters the cavity for filling. When too much liquid metal flows out through the overflow port, the pouring stops;
[0040] When the molten metal solidifies and reaches the unpacking temperature, the box is opened and the pouring is completed.
[0041] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. An anti-rotation and anti-crack pouring cup, characterized in that: The invention comprises a cup body (3) and a cup bottom (4); the cup body (3) is a hollow inverted bell-shaped structure which is wide at the top and narrow at the bottom to prevent the rotation of molten metal; a trumpet-shaped structure (2) is arranged at the mouth of the cup body (3) to prevent the splashing of molten metal; an overflow port (1) is arranged on the trumpet-shaped structure (2); the cup bottom (4) is arranged at the bottom of the cup body (3), and the connection between the cup bottom (4) and the cup body (3) is a stepped boss structure, and the cross-sectional area of the cup bottom (4) is smaller than the cross-sectional area of the bottom surface of the cup body (3).
2. The anti-rotation and anti-cracking pouring cup according to claim 1, characterized in that: The inner wall of the hollow inverted bell-shaped structure of the cup body (3) is a curved surface structure.
3. The anti-rotation and anti-cracking pouring cup according to claim 1, characterized in that: The trumpet-shaped structure (2) is fixedly connected to the top of the cup body (3), and the trumpet-shaped structure (2) is an expanded structure connected to the cup mouth and tilted outward.
4. The anti-rotation and anti-cracking pouring cup according to claim 1 or 3, characterized in that: The central axis of the trumpet-shaped structure (2) coincides with the central axis of the cup body (3).
5. The anti-rotation and anti-cracking pouring cup according to claim 1, characterized in that: The bottom of the overflow port (1) is a sloped structure with an inner surface higher than an outer surface.
6. The anti-rotation and anti-cracking pouring cup according to claim 1 or 5, characterized in that: The overflow port (1) is in the shape of a rectangle, a trapezoid, a circle, or a V-shape.
7. The anti-rotation and anti-cracking pouring cup according to claim 6, characterized in that: The overflow port (1) is in the shape of a trapezoid that is wider at the top and narrower at the bottom.
8. The anti-rotation and anti-cracking pouring cup according to claim 1, characterized in that: The raw material for preparing the pouring cup is one of quartz sand, resin sand, clay sand, coated sand and metal.
9. The anti-rotation and anti-cracking pouring cup according to claim 1, characterized in that: The cup bottom (4) is connected to the sprue.