A valve core shaft casting structure

Abstract

The utility model discloses a valve core axle casting structure, include: valve core axle casting, pouring mechanism, first riser and second riser, valve core axle casting is linked together with first riser and second riser, and first riser and second riser are linked together, and pouring mechanism is linked together with second riser, the shape of first riser is the rectangular shape of the consistent width from top to bottom, and first riser includes first surface, and first surface sets up in the side of first riser away from valve core axle casting, and first surface is vertically arranged, the shape of second riser is the circular shape of quarter, and second riser includes second surface, and second surface sets up in the side of second riser away from valve core axle casting, and second surface is relatively first surface and is arranged obliquely, and second surface is connected with first surface. The utility model discloses through the volume of first riser is increased, and the volume of second riser is reduced, so that metal liquid can pass through first riser and second riser and supplement shrink into valve core axle casting simultaneously, to ensure the supplement shrink effect of riser.

Description

Technical Field

[0001] This utility model relates to the field of sand casting technology, and in particular to a valve mandrel casting structure. Background Technology

[0002] Shrinkage defects are prone to occur at the included angle of the valve mandrel casting, and the shrinkage rate is very high, which will affect the quality of the valve mandrel casting. Therefore, during casting, the riser is divided into a first riser and a second riser, with the first riser located in the upper half and the second riser located in the lower half.

[0003] During casting, the volume of the second riser in the lower half was too large, resulting in poor feeding effect. At the same time, the volume of the first riser in the upper half was too small, causing the molten metal in the first riser in the upper half to flow into the second riser in the lower half, resulting in the riser not being able to provide a good feeding effect for the valve core casting. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a valve core casting structure that increases the volume of the first riser and decreases the volume of the second riser, so that molten metal can be fed into the valve core casting through both the first and second risers simultaneously, thereby ensuring the feeding effect of the risers.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: This utility model embodiment provides a valve mandrel casting structure, including: a valve mandrel casting, a casting mechanism, a first riser, and a second riser; The valve core casting is connected to the first riser and the second riser, and the first riser and the second riser are connected to each other. The casting mechanism is connected to the second riser. The first riser is a rectangular shape with a uniform width at the top and bottom. The first riser includes a first surface, which is located on the side of the first riser away from the valve core casting and is vertically arranged. The second riser is a quarter-circle shape and includes a second surface. The second surface is disposed on the side of the second riser away from the valve core casting. The second surface is inclined relative to the first surface and is connected to the first surface.

[0006] In some embodiments, the connection between the first riser and the second riser is a first end, the second riser includes a second end, the second end is disposed on the second riser away from the first end, and the second surface is an inclined surface that connects the first end and the second end.

[0007] In some embodiments, the pouring mechanism includes: a pouring cup, a sprue, a filter, and an ingate; The sprue is connected to the pouring cup, the ingate is connected to the sprue, the filter is disposed between the ingate and the sprue, and the ingate is connected to the second riser.

[0008] In some embodiments, two filters and two inlet runners are provided; The direct gating system is provided with two branch gating channels, which are respectively connected to the two filters and the inlet gating system.

[0009] This utility model provides a valve core casting structure. By setting a first riser and a second riser, and setting the shape of the first riser to be a rectangle with the same width at the top and bottom, the volume of the first riser is increased. By setting the shape of the second riser to be a quarter circle and setting the second surface at an angle, the volume of the second riser is reduced. Thus, molten metal can be fed into the valve core casting through the first riser and the second riser at the same time, so as to ensure the feeding effect of the riser. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual process of the method, etc. involved in the embodiments of this disclosure.

[0011] Figure 1 This is a schematic diagram of the valve mandrel casting structure according to some embodiments of the present disclosure; Figure 2 This is a partial structural schematic diagram of the valve mandrel casting structure according to some embodiments of the present disclosure; Figure 3 This is a partial structural side view of a valve mandrel casting structure according to some embodiments of the present disclosure. Detailed Implementation

[0012] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0013] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0014] This utility model embodiment provides a valve mandrel casting structure, such as Figure 1-3 As shown, it includes: valve core casting 1, casting mechanism 2, first riser 3 and second riser 4.

[0015] In some embodiments, the valve mandrel casting 1 is connected to the first riser 3 and the second riser 4, and the first riser 3 and the second riser 4 are connected to each other. The casting mechanism 2 is connected to the second riser 4. When casting the valve mandrel casting 1, the molten metal is poured from the casting mechanism 2, then enters the second riser 4, then enters the first riser 3, and then enters the casting cavity of the valve mandrel casting 1 through the first riser 3 and the second riser 4. The first riser 3 and the second riser 4 are used to compensate for the shrinkage during the solidification process of the casting, avoid defects such as shrinkage porosity, and also have a venting function.

[0016] In some embodiments, the first riser 3 is a rectangular shape with a uniform width at both the top and bottom. The first riser 3 includes a first surface 31, which is disposed on the side of the first riser 3 away from the valve mandrel casting 1, and the first surface 31 is vertically arranged. When molten metal enters from the second riser 4, the first riser 3, which is connected to the second riser 4, is also filled with molten metal, and flows into the casting cavity through the valve mandrel casting 1 connected to the first riser 3, ultimately forming the cast valve mandrel casting 1.

[0017] In some embodiments, the second riser 4 is a quarter-circular shape and includes a second surface 41 disposed on the side of the second riser 4 away from the valve core casting 1. The second surface 41 is inclined relative to the first surface 31 and is connected to the first surface 31. In this way, the volume of the second riser 4 is smaller than that of the first riser 3, preventing molten metal in the first riser 3 from flowing into the second riser 4, thereby improving the feeding effect of the first riser 3 and the second riser 4.

[0018] The present invention provides a valve core casting structure. By setting a first riser 3 and a second riser 4, and setting the shape of the first riser 3 as a rectangle with the same width at the top and bottom, the volume of the first riser 3 is increased. By setting the shape of the second riser 4 as a quarter circle and setting the second surface 41 at an angle, the volume of the second riser 4 is reduced. Thus, molten metal can be fed into the valve core casting 1 through the first riser 3 and the second riser 4 at the same time, so as to ensure the feeding effect of the riser.

[0019] In some embodiments, the connection between the first riser 3 and the second riser 4 is a first end 5, and the second riser 4 includes a second end 6, which is disposed away from the first end 5 on the second riser 4. The second surface 41 is an inclined surface that connects the first end 5 and the second end 6. In this way, by making the second surface 41, which is disposed between the first end 5 and the second end 6, an inclined surface, the volume of the second riser 4 can be reduced, thereby improving the feeding effect of the second riser 4.

[0020] In some embodiments, the casting mechanism 2 includes: a pouring cup 21, a sprue 22, a filter 23, and an ingate 24. The sprue 22 is connected to the pouring cup 21, and the ingate 24 is connected to the sprue 22. The filter 23 is disposed between the ingate 24 and the sprue 22, and the ingate 24 is connected to the second riser 4. During casting, molten metal is poured in through the pouring cup 21, enters the ingate 24 through the sprue 22, and is then poured into the casting cavity of the valve core casting 1 through the second riser 4. The filter 23 can filter impurities in the molten metal, ensuring the purity of the molten metal and thus improving the quality of the valve core casting 1.

[0021] In some embodiments, two filters 23 and two ingates 24 are provided, and the sprue 22 is provided with two sub-sprues, which are respectively connected to the two filters 23 and the two ingates 24. In this way, molten metal can be poured into the two ingates 24 through a pouring cup 21 and a sprue 22, thereby casting two valve core castings 1 and improving casting efficiency.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A valve mandrel casting structure, characterized in that: include: Valve mandrel casting, casting mechanism, first riser and second riser; The valve core casting is connected to the first riser and the second riser, and the first riser and the second riser are connected to each other. The casting mechanism is connected to the second riser. The first riser is a rectangular shape with a uniform width at the top and bottom. The first riser includes a first surface, which is located on the side of the first riser away from the valve core casting and is vertically arranged. The second riser is a quarter-circle shape and includes a second surface. The second surface is disposed on the side of the second riser away from the valve core casting. The second surface is inclined relative to the first surface and is connected to the first surface.

2. The valve mandrel casting structure as described in claim 1, characterized in that, The connection between the first riser and the second riser is the first end. The second riser includes a second end, which is disposed on the second riser away from the first end. The second surface is an inclined surface that connects the first end and the second end.

3. The valve mandrel casting structure as described in claim 1, characterized in that, The pouring mechanism includes: a pouring cup, a sprue, a filter, and an inlet. The sprue is connected to the pouring cup, the ingate is connected to the sprue, the filter is disposed between the ingate and the sprue, and the ingate is connected to the second riser.

4. The valve mandrel casting structure as described in claim 3, characterized in that, Both the filter and the inlet sprue are provided in two parts; The direct gating system is provided with two branch gating channels, which are respectively connected to the two filters and the inlet gating system.

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