CN214814589U - Novel ventilating riser structure - Google Patents
Novel ventilating riser structure Download PDFInfo
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- CN214814589U CN214814589U CN202120079536.2U CN202120079536U CN214814589U CN 214814589 U CN214814589 U CN 214814589U CN 202120079536 U CN202120079536 U CN 202120079536U CN 214814589 U CN214814589 U CN 214814589U
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- riser
- riser body
- rising head
- strain relief
- novel strain
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Abstract
The utility model discloses a novel ventilative rising head structure, including constructing the fixed mouthful structure at rising head body top, fixed mouthful structure and rising head body integrated into one piece, the inner chamber of fixed mouthful structure communicates with each other with rising head body die cavity, in be equipped with ventilative structure in the fixed mouthful structure. The utility model discloses have good air permeability, its ventilative structure and rising head body have higher bulk connection intensity, and both are difficult for droing, take place the phenomenon at molten metal break through rising head body top when having avoided the use, have guaranteed product quality. The utility model is suitable for a casting technical field.
Description
Technical Field
The utility model belongs to the technical field of the casting, specific theory relates to a novel ventilative rising head structure.
Background
The riser is a supplementary part which is arranged above or on the side surface of the casting in the casting manufacturing process, provides molten metal liquid for storing casting feeding, and has a cavity with the functions of exhausting and collecting slag; in the actual production process, in order to improve the process yield of castings and reduce the weight of molten metal in a riser, an insulating riser sleeve made of an insulating material or a heating riser sleeve made of a heating material is usually adopted for feeding when the molten metal is solidified, but the exhaust performance is poor.
In the casting process, gas in a casting mold cavity is exhausted through a riser in a short time, namely, after molten metal enters the casting mold cavity, a large part of generated gas is exhausted through the riser, and particularly when an exothermic riser sleeve is used, a large amount of gas is generated along with the generated gas, so that the requirement on the exhaust performance of the riser sleeve is higher.
The common riser sleeve in the casting production at present is of a cup-shaped structure, the top of the riser sleeve and the side wall of the riser sleeve are made of the same material, and the exhaust performance is poor; in the casting production process with high requirement on air discharge, holes are formed in the top of the riser sleeve at the present stage to form an air discharge channel, then an air discharge plug processed by sand with large granularity is additionally arranged on the upper portion of the holes, the overflow of molten metal is prevented under the condition of ensuring air discharge, but under the pressure inside a cavity, the integral connection strength of the air discharge plug and the riser sleeve is poor, the air discharge plug and the riser sleeve are easy to fall off and separate, and the phenomenon that the molten metal breaks the top of the riser when the casting production process is used is caused, so that the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel ventilative rising head structure for guarantee good exhaust performance, simultaneously, its holistic joint strength is high, is difficult for droing, takes place the phenomenon that the rising head top was broken through to the molten metal when avoiding using, and then guarantees product quality's purpose.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a novel ventilative rising head structure, is including constructing the fixed mouthful structure at rising head body top, fixed mouthful structure and rising head body integrated into one piece, the inner chamber of fixed mouthful structure communicates with each other with rising head body die cavity, in be equipped with ventilative structure in the fixed mouthful structure.
Furthermore, the partial or whole area of the side surface of the ventilation structure is connected with the riser body.
Furthermore, more than 20% of the area of the side surface of the ventilating structure is fixedly connected with the circumferential surface of the fixed port structure.
Further, the shape of the cross section of the fixing port structure includes a circle, an ellipse or a polygon.
Further, the area of the bottom surface of the air-permeable structure is not less than 1/4 of the area of the top of the cavity of the riser body.
Furthermore, the ventilation structure and the riser body are integrally manufactured or embedded in the fixing port structure of the riser body.
Furthermore, at least one division bar is constructed on the riser body and in the fixed port structure, the ventilation structure is arranged in the fixed port structure, and the ventilation structure is divided into at least two parts through the division bar.
Furthermore, the feeder body is made of heat-insulating materials or heating materials or refractory materials with the granularity of 10-200 meshes.
Furthermore, the material selected for the air-permeable structure comprises a heat-insulating material or a heating material or a refractory material with good air permeability and granularity of 10-50 meshes.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: the air-permeable structure for exhausting is arranged at the top of the riser body, the upper surface of the air-permeable structure is in contact with the sand mold or the external atmosphere, and the bottom of the air-permeable layer extends to the position of the cavity of the riser body, so that the air is conveniently exhausted; the venting structure and the riser body are fixed together, so that the contact area of the venting structure and the riser body is increased, the integral connection strength is high, and the venting structure and the riser body are stably connected and are not easy to fall off; therefore, the utility model discloses have good air permeability, its ventilative structure and rising head body have higher bulk connection intensity, and both are difficult for droing, take place the phenomenon at molten metal break rising head body top when having avoided the use, have guaranteed product quality.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a top view of the structure of the embodiment of the present invention;
FIG. 2 is a sectional view of the structure taken along line A-A in FIG. 1;
fig. 3 is a top view of another embodiment of the present invention;
FIG. 4 is a sectional view of the structure taken along line A-A in FIG. 3;
fig. 5 is a top view of another embodiment of the present invention;
FIG. 6 is a sectional view of the structure taken along line A-A in FIG. 5;
fig. 7 is a top view of another embodiment of the present invention;
FIG. 8 is a sectional view of the structure taken along line A-A of FIG. 7;
FIG. 9 is a sectional view of the structure taken along line B-B of FIG. 7;
fig. 10 is a top view of another embodiment of the present invention;
FIG. 11 is a sectional view of the structure taken along line A-A of FIG. 10;
fig. 12 is a top view of another embodiment of the present invention;
fig. 13 is a sectional view of the structure taken along the line a-a in fig. 12.
Labeling components: 1-riser body, 2-ventilation structure, 3-cavity and 4-parting bead.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The utility model discloses a novel ventilative rising head structure, as shown in fig. 1, including rising head body and ventilative structure, wherein, be equipped with fixed mouthful structure at the top of rising head body, fixed mouthful structure and rising head body integrated into one piece, the inner chamber and the rising head body die cavity of fixed mouthful structure communicate with each other, and ventilative structure is fixed to be set up in fixed mouthful structure. The utility model has the advantages that: the air-permeable structure for exhausting is arranged at the top of the riser body, the upper surface of the air-permeable structure is in contact with the sand mold or the external atmosphere, and the bottom of the air-permeable layer extends to the position of the cavity of the riser body, so that the air is conveniently exhausted; the gas-permeable structure is embedded into the top of the riser body and is connected with the side wall of the riser body through the gas-permeable structure, so that the contact area between the gas-permeable structure and the riser body is increased, the integral connection strength is high, and the gas-permeable structure and the riser body are stably connected and are not easy to fall off; therefore, the utility model discloses have good air permeability, its ventilative structure and rising head body have higher bulk connection intensity, and both are difficult for droing, take place the phenomenon at molten metal break rising head body top when having avoided the use, have guaranteed product quality.
As a preferred embodiment of the present invention, in order to ensure the stability of the connection between the ventilation structure and the riser body, the local or whole area of the side surface of the ventilation structure is connected to the riser body, and a better connection area is obtained in the use or test process. Preferably, more than 20% of the area of the side surface of the ventilation structure is fixedly connected with the peripheral surface of the fixed port structure. The preferred shape of the fixing port structure of this embodiment is that the cross-sectional shape of the fixing port structure includes, but is not limited to, a circle, an ellipse or a polygon, and further, the shape of the air permeable structure is a shape adapted to the fixing port structure. In order to ensure that the connection between the ventilating structure and the riser body is more stable and the ventilating effect is improved, the area of the bottom surface of the ventilating structure is not less than 1/4 of the area of the top of the cavity of the riser body.
As a preferred embodiment of the present invention, in order to facilitate the production and processing, the ventilation structure and the riser body are integrally formed, or the ventilation structure is pre-formed and embedded in the fixing opening structure of the riser body.
As a preferred embodiment of the present invention, the ventilation structure may also be a split structure, so as to improve the fixing strength and ventilation property with the riser body, as shown in fig. 5-13, at least one partition is constructed on the riser body and located in the fixing port structure, the ventilation structure is disposed in the fixing port structure, and the ventilation structure is separated into at least two parts by the partition.
As a preferred embodiment of the present invention, the material for the feeder head body includes heat insulating material (such as floating beads, hollow microspheres, etc.) or heating material (heating material mixed by floating beads, aluminum, etc.) or refractory material (such as molding sand, alumina powder, etc.) with a particle size of 10-200 meshes. The material for the air permeable structure comprises heat insulating material (such as floating beads, hollow microspheres and the like) or refractory material (such as molding sand, alumina powder and the like) with good air permeability and the granularity of 10-50 meshes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (8)
1. The utility model provides a novel ventilative rising head structure which characterized in that: the riser comprises a fixed port structure constructed at the top of a riser body, wherein the fixed port structure and the riser body are integrally formed, an inner cavity of the fixed port structure is communicated with a cavity of the riser body, and a ventilation structure is arranged in the fixed port structure; at least one division bar is constructed on the riser body and in the fixed port structure, the ventilation structure is arranged in the fixed port structure, and the ventilation structure is divided into at least two parts through the division bar.
2. The novel strain relief structure of claim 1, wherein: and part or the whole area of the side surface of the ventilation structure is connected with the riser body.
3. The novel strain relief structure of claim 1, wherein: more than 20% of the area of the side surface of the ventilating structure is fixedly connected with the circumferential surface of the fixed port structure.
4. The novel strain relief structure of claim 1, wherein: the cross section of the fixing port structure has a shape including a circle, an ellipse or a polygon.
5. The novel strain relief structure of claim 1, wherein: the area of the bottom surface of the air-permeable structure is not less than 1/4 of the area of the top of the cavity of the riser body.
6. The novel strain relief structure of claim 1, wherein: the ventilation structure and the riser body are integrally manufactured or embedded in the fixing port structure of the riser body.
7. The novel strain relief structure as claimed in any one of claims 1 to 6, wherein: the riser body is made of heat insulating materials or heating materials or refractory materials with the granularity of 10-200 meshes.
8. The novel strain relief structure as claimed in any one of claims 1 to 6, wherein: the material selected for the air-permeable structure comprises a heat-insulating material or a heating material or a refractory material with good air permeability and granularity of 10-50 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079536.2U CN214814589U (en) | 2021-01-12 | 2021-01-12 | Novel ventilating riser structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079536.2U CN214814589U (en) | 2021-01-12 | 2021-01-12 | Novel ventilating riser structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214814589U true CN214814589U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120079536.2U Active CN214814589U (en) | 2021-01-12 | 2021-01-12 | Novel ventilating riser structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214814589U (en) |
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2021
- 2021-01-12 CN CN202120079536.2U patent/CN214814589U/en active Active
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