Flow guide type sand cup structure of spinning assembly

Abstract

The utility model discloses a flow guide sand cup structure of a spinning assembly, which comprises a sand cup, a plurality of circles of distribution surfaces are arranged at the bottom of a cup cavity of the sand cup, and distribution holes are respectively arranged on the distribution surfaces; the plurality of circles of distribution surfaces are in a step shape which is reduced from the outer circle to the inner circle, and the distribution surface on the outermost circle is connected with the side wall of the cup cavity, so that a spinning melt at the bottom angle of the side wall can flow step by step along the plurality of circles of distribution surfaces; a flow guide slope is arranged between every two adjacent distribution faces, and spinning melt can flow to the next-order distribution face along the flow guide slopes. An arc-shaped transition surface is arranged between the bottom corner of the side wall of the cup cavity and the distribution surface of the outermost ring; from the outer ring to the inner ring, the height difference of the distribution surfaces of the two adjacent rings is gradually reduced; the number of the distribution holes in each distribution surface is gradually reduced from the outer ring to the inner ring; and the distribution surfaces are concentrically arranged. According to the utility model, the spinning melt is not easy to retain at the bottom corner of the sand cup.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning components, in particular to a flow-guiding sand cup structure of a spinning component. Background Art

[0002] The sand cup is one of the components of the spinning assembly. The sand cup is usually filled with metal sand and a filter screen. When the spinning melt passes through the sand cup, the metal sand and the filter screen filter out impurities in the spinning melt. The bottom of the existing sand cup is mostly a right-angle structure, and the spinning melt is easy to be retained at the bottom corner of the sand cup. The spinning melt that is retained for too long may be cracked, affecting the viscosity and fluidity of the spinning melt and reducing the quality of spinning. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a flow-guiding sand cup structure of a spinning assembly, so that the spinning melt is not easily retained at the bottom corner of the sand cup.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a guide sand cup structure of a spinning component, including a sand cup, and the bottom of the cup cavity of the sand cup is provided with multiple circles of distribution surfaces, and each distribution surface is respectively provided with distribution holes; the multiple circles of distribution surfaces are stepped from the outer circle to the inner circle, and the distribution surface of the outermost circle is connected to the side wall of the cup cavity, so that the spinning melt at the bottom corner of the side wall can flow step by step along the multiple circles of distribution surfaces.

[0005] Furthermore, there is a guide slope between two adjacent distribution surfaces, and the spinning melt can flow along the guide slope to the next-order distribution surface.

[0006] Furthermore, an arc-shaped transition surface is provided between the bottom corner of the side wall of the cup cavity and the distribution surface of the outermost circle.

[0007] Furthermore, from the outer circle to the inner circle, the height difference between two adjacent circles of distribution surfaces gradually decreases.

[0008] Furthermore, the number of distribution holes on each distribution surface gradually decreases from the outer ring to the inner ring.

[0009] Furthermore, the distribution surfaces are concentrically arranged.

[0010] Beneficial effect: The utility model provides a guide sand cup structure of a spinning component, and has multiple distribution surfaces at the bottom of the cup cavity of the sand cup, and the multiple distribution surfaces are stepped from the outer circle to the inner circle, so that the spinning melt at the bottom corner of the cup cavity can flow step by step along the multiple distribution surfaces, thereby avoiding the spinning melt from being retained at the bottom corner of the cup cavity for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 is a three-dimensional cross-sectional view of a sand cup;

[0012] Attached Figure 2 This is a plan cross-sectional view of the sand cup. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] As attached Figures 1 to 2 The flow-guiding sand cup structure of the spinning assembly comprises a sand cup 1, wherein the bottom of the cup cavity 2 of the sand cup 1 has a plurality of distribution surfaces 3, each of which is provided with a distribution hole 4, and the distribution hole 4 vertically penetrates the bottom of the sand cup 1. Figure 1 and 2 As shown in FIG, the multi-circle distribution surface 3 is stepped from the outer circle to the inner circle, that is, the height of each distribution surface 3 gradually decreases from the outer circle to the inner circle. The distribution surface 3 of the outermost circle is connected to the side wall of the cup cavity 2, so that the spinning melt at the bottom corner of the side wall can flow step by step along the multi-circle distribution surface 3, thereby avoiding the spinning melt from being retained at the bottom corner of the side wall of the cup cavity 2 for a long time.

[0015] Each distribution surface 3 is a horizontal surface, and there is a guide slope 5 between two adjacent distribution surfaces 3, and the spinning melt can flow along the guide slope 5 to the next-order distribution surface 3. The guide slope 5 can avoid the right-angle structure between adjacent distribution surfaces 3, thereby preventing the spinning melt from being retained at the junction of adjacent distribution surfaces 3.

[0016] As attached Figure 2 As shown in the figure, an arc-shaped transition surface 6 is arranged between the bottom corner of the side wall of the cup cavity 2 and the distribution surface 3 of the outermost circle. The arc-shaped transition surface 6 is a concave arc. The arc-shaped transition surface 6 can avoid the appearance of a right-angle structure at the bottom corner of the side wall of the cup cavity 2. The spinning melt moving down along the side wall of the cup cavity 2 can flow along the arc-shaped transition surface 6 to the distribution surface 3 of the outermost circle, so that the spinning melt is not easily retained at the bottom corner of the side wall of the cup cavity 2.

[0017] From the outer circle to the inner circle, the height difference between the two adjacent distribution surfaces 3 gradually decreases. At the distribution surface 3 of the outer circle, the spinning melt is more likely to flow to the next-order distribution surface 3 to avoid the spinning melt being retained. On the distribution surface 3 of the inner circle, the spinning melt is less likely to flow to the next-order distribution surface 3 to avoid the spinning melt being too concentrated in the center of the sand cup 1.

[0018] From the outer circle to the inner circle, the number of distribution holes 4 on each distribution surface 3 gradually decreases to adapt to the area of ​​the distribution surface 3, so that the spinning melt flows out of each distribution hole 4 relatively evenly.

[0019] The distribution surfaces 3 are concentrically arranged, and except for the innermost distribution surface 3, the other distribution surfaces 3 are all in annular shape.

[0020] When the sand cup 1 of the utility model is used, metal sand and a filter screen are filled in the sand cup 1. The filter screen is attached to the bottom of the sand cup 1 and adapted to the shape of the bottom of the sand cup 1. During the process of the spinning melt flowing through the sand cup 1, it passes through the metal sand and the filter screen in sequence and is then discharged from the distribution hole 4. The spinning melt at the bottom corner of the cup cavity 2 can flow toward the center of the cup cavity 2 along the multi-circle distribution surface 3, thereby avoiding the spinning melt from staying at the bottom corner of the cup cavity 2 for too long.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A flow-guiding sand cup structure of a spinning assembly, characterized in that: The invention comprises a sand cup (1), wherein the bottom of a cup cavity (2) of the sand cup (1) is provided with a plurality of distribution surfaces (3), and each distribution surface (3) is provided with a distribution hole (4); the plurality of distribution surfaces (3) are in a step-like shape descending from the outer circle to the inner circle, and the distribution surface (3) of the outermost circle is connected to the side wall of the cup cavity (2), so that the spinning melt at the bottom corner of the side wall can flow step by step along the plurality of distribution surfaces (3).

2. The flow-guiding sand cup structure of a spinning assembly according to claim 1, characterized in that: A flow guiding slope (5) is provided between two adjacent distribution surfaces (3), and the spinning melt can flow along the flow guiding slope (5) to the next-order distribution surface (3).

3. The flow-guiding sand cup structure of a spinning assembly according to claim 1, characterized in that: An arc-shaped transition surface (6) is provided between the bottom corner of the side wall of the cup cavity (2) and the outermost distribution surface (3).

4. The flow-guiding sand cup structure of a spinning assembly according to claim 1, characterized in that: From the outer circle to the inner circle, the height difference between two adjacent distribution surfaces (3) gradually decreases.

5. The flow-guiding sand cup structure of a spinning assembly according to claim 1, characterized in that: From the outer circle to the inner circle, the number of distribution holes (4) on each distribution surface (3) gradually decreases.

6. The flow-guiding sand cup structure of a spinning assembly according to claim 1, characterized in that: The distribution surfaces (3) are arranged concentrically.

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