CN211564437U - A mould for preparing two-sided shell mould of valve gap class foundry goods - Google Patents
A mould for preparing two-sided shell mould of valve gap class foundry goods Download PDFInfo
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- CN211564437U CN211564437U CN201922447771.6U CN201922447771U CN211564437U CN 211564437 U CN211564437 U CN 211564437U CN 201922447771 U CN201922447771 U CN 201922447771U CN 211564437 U CN211564437 U CN 211564437U
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Abstract
The utility model relates to a mould for preparing a double-sided shell type valve cover casting, which comprises a first mould and a second mould, wherein the first mould is provided with a first cavity, and the second mould is provided with a second cavity; the second mold forms a mold when the mold is closed with the first mold. The pouring bulge is positioned in the middle of the top end of the cavity, the first main runner bulge and the second main runner bulge are respectively arranged on two sides of the pouring bulge, the first branch runner bulge is arranged below the first main runner bulge, the second branch runner bulge is arranged below the second main runner bulge, three half-casting bulges are arranged on two sides of the first branch runner bulge, and three half-casting bulges are arranged on the outer side of the second branch runner along the length direction of the second branch runner; the first transverse bulge, the second transverse bulge, the third transverse bulge and the fourth transverse bulge are respectively connected with one adjacent semi-casting bulge. The utility model provides high production efficiency.
Description
Technical Field
The utility model relates to a tectorial membrane sand field especially relates to a mould for preparing two-sided shell mould of valve gap class foundry goods.
Background
The technology for making the core by using the precoated sand comprises the steps of blowing the mixed precoated sand into a metal mold cavity heated to the temperature of 250-280 ℃ by using a core shooting machine under pressure, softening and melting phenolic resin through the action of heat conduction, then solidifying, and hardening and caking the sand mold into a shell shape, so the sand mold is also called shell mold sand molding. The precoated sand is the molding sand or core sand with a layer of solid resin film coated on the surface of the sand, and a casting mold shell (or a mold core) formed by the precoated sand molding process has the advantages of no delamination, good thermal stability, good thermal conductivity and the like.
In the prior art, a mold for a double-sided shell mold of a valve cover casting is prepared, sand is manually put into a metal mold and pressed, and the sand is solidified and molded. The shell mold prepared in the way is large in thickness and low in shell mold strength, only can be a single-face shell mold, a cavity for pouring molten metal can be formed only by buckling two shell molds together, the sand consumption is large, the labor cost is high, the production efficiency is low, and the labor intensity is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an improved production efficiency's mould that is used for preparing the two-sided shell mould of valve gap class foundry goods.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a mould for preparing two-sided shell mould of valve gap class foundry goods, a serial communication port, include:
a first die, wherein a first cavity for preparing one side of the double-sided shell is arranged on the inner side surface of the first die, the first cavity is provided with a first branch flow channel bulge, a second branch flow channel bulge, a pouring bulge, a first main flow channel bulge, a second main flow channel bulge and a semi-casting bulge matched with a valve cover type casting, the pouring bulge is positioned in the middle of the top end of the first cavity, the first main runner bulge and the second main runner bulge are respectively arranged on two sides of the pouring bulge, the first branch flow channel bulge is vertically arranged below the first main flow channel bulge, the second branch flow channel bulge is vertically arranged below the second main flow channel bulge, two sides of the first branch flow channel bulge are at least provided with two half-casting bulges along the length direction of the first branch flow channel bulge, and the outer side of the second branch flow channel is provided with at least two half-casting bulges along the length direction of the second branch flow channel bulge; the first branched flow channel bulge is provided with a first node and a second node, one side of the first node, which is far away from the second branched flow channel bulge, is connected with a first transverse bulge, two sides of the second node are both connected with second transverse bulges, the second branched flow channel bulge is provided with a third node and a fourth node, two sides of the third node are both connected with third transverse bulges, and one side of the fourth node, which is far away from the first branched flow channel bulge, is connected with a fourth transverse bulge; the first transverse bulge, the second transverse bulge, the third transverse bulge and the fourth transverse bulge are respectively connected with one adjacent semi-casting bulge, the first node and the third node are symmetrically arranged, and the second node and the fourth node are symmetrically arranged;
the inner side surface of the second die is provided with a second cavity for preparing the other surface of the double-sided shell type;
and when the second mold and the first mold are closed, a shell mold cavity matched with the double-sided shell mold is formed inside the second mold and the first mold.
Furthermore, the second transverse bulges on two sides of the second node are symmetrically arranged, and the third transverse bulges on two sides of the third node are symmetrically arranged.
Furthermore, the half casting bulges on two sides of the first branch flow channel are arranged at equal intervals, and the half casting bulges on one side of the second branch flow channel are arranged at equal intervals.
Furthermore, a first half sand shooting port is formed in the opposite side, far away from the pouring protrusion, of the first mold, a second half sand shooting port is formed in the corresponding position of the second mold, and after the mold is closed, the first half sand shooting port in the first mold and the second half sand shooting port in the second mold are combined to form the sand shooting port.
Furthermore, the inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
The connecting plate is used for connecting the first die with the second die through the first screw hole and the second screw hole.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a mould for preparing valve gap class foundry goods double-sided shell mould, first mould and second mould are installed at the sand shooting machine corresponding position, and after first mould and second mould compound die, the sand shooting machine shoots the sand into the shell mould cavity and forms the double-sided shell mould, need not manual operation, can directly prepare the double-sided sand shell; each surface of the double-sided sand shell is provided with a plurality of semi-casting bulges matched with the valve cover type castings.
Furthermore, the valve cover type castings can be produced in batch, the valve cover type castings produced through double-sided shell type molten iron pouring are high in precision, the production cost and the labor intensity are reduced, the production efficiency is improved, and the valve cover type castings can be produced in batch; equipment investment is little, and production efficiency is high, and the perpendicular pouring of foundry goods pile box, pressure feeding, and pressure test does not have the seepage, through the utility model discloses a horizontal protruding more even of distributing.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a first mold of a mold for preparing a double-sided shell type of a valve cover type casting according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. a first cavity; 2. the first branch flow channel is convex; 3. the second branch flow channel is convex; 4. pouring a bulge; 5. a first main flow channel protrusion; 6. a second main flow channel protrusion; 7. the semi-casting is raised; 8. a first half sand shooting port; 9. a first transverse projection; 10. a second transverse projection; 11. a third transverse bulge; 12. and a fourth transverse bulge.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The mold for preparing the double-sided shell mold of the valve cover type casting, which is described in the embodiment, comprises a first mold and a second mold, wherein a first cavity 1 for preparing one surface of the double-sided shell mold of precoated sand is formed in the inner side surface of the first mold, and a second cavity for preparing the other surface of the double-sided shell mold of precoated sand is formed in the inner side surface of the second mold; and a shell mold cavity matched with the double-sided shell is formed inside the second mold and the first mold when the second mold and the first mold are closed, namely a first cavity on the first mold and a second cavity on the second mold are combined to form the shell mold cavity, and the first cavity 1 and the second cavity are at least partially in mirror symmetry.
As shown in fig. 1, the first cavity 1 is provided with a first branch runner protrusion 2, a second branch runner protrusion 3, a pouring protrusion 4, a first main runner protrusion 5, a second main runner protrusion 6 and a half casting protrusion 7 adapted to a valve cover type casting, the pouring protrusion 4 is located in the middle of the top end of the first cavity, the first main runner protrusion 5 and the second main runner protrusion 6 are respectively arranged on two sides of the pouring protrusion 4, the first branch runner protrusion 3 is vertically arranged below the first main runner protrusion 2, the second branch runner protrusion 3 is vertically arranged below the second main runner protrusion 6, two sides of the first branch runner protrusion 3 are at least provided with two half casting protrusions 7 along the length direction thereof, and the outer side of the second branch runner protrusion 3 is provided with at least two half casting protrusions 7 along the length direction thereof; the first branch flow channel bulge 2 is provided with a first node and a second node, one side of the first node, which is far away from the second branch flow channel bulge 3, is connected with a first transverse bulge 9, two sides of the second node are both connected with second transverse bulges 10, the second branch flow channel bulge 3 is provided with a third node and a fourth node, two sides of the third node are both connected with third transverse bulges 11, and one side of the fourth node, which is far away from the first branch flow channel bulge, is connected with a fourth transverse bulge 12; the first transverse bulge 9, the second transverse bulge 10, the third transverse bulge 11 and the fourth transverse bulge 12 are respectively connected with one adjacent semi-casting bulge, the first node and the third node are symmetrically arranged, and the second node and the fourth node are symmetrically arranged.
The second horizontal bulges 10 on the two sides of the second node are symmetrically arranged, and the third horizontal bulges 11 on the two sides of the third node are symmetrically arranged.
The half casting bulges 7 on the two sides of the first branch flow channel bulge 2 are arranged at equal intervals, and the half casting bulges 7 on one side of the second branch flow channel bulge 3 are arranged at equal intervals.
And after the die is closed, the first half sand shooting port 8 on the first die and the second half sand shooting port on the second die are combined into a sand shooting port.
The inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
The connecting plate is used for connecting the first die with the second die through the first screw hole and the second screw hole. When the die is used, the first die and the second die are arranged at corresponding positions, and when the die is not used, the first die and the second die are connected through the connecting plate and placed.
The first transverse projection 9, the second transverse projection 10, the third transverse projection 11 and the fourth transverse projection 12 are arranged in the mode of the embodiment, so that sand injected by the sand injector is distributed more uniformly and the quality is better.
As shown in fig. 1, the left and right sides of the first branch flow channel protrusion 2 of the present embodiment are respectively provided with three half-casting protrusions 7, and the right side of the second branch flow channel protrusion 3 is provided with three half-casting protrusions 7; the first vertical pouring gate is provided with three nodes which are a first node, a first node and a second node from top to bottom in sequence, a first transverse bulge 9 on the left side of the two first nodes is connected with a half-casting bulge 7 on the left side of the first vertical pouring gate, and second transverse bulges 10 on two sides of the second node are respectively connected with the half-casting bulges 7 on two sides of the second vertical pouring gate; the second vertical pouring gate is provided with three nodes which are a third node, a third node and a fourth node from top to bottom in sequence, first transverse bulges 9 on two sides of the two third nodes are respectively connected with the semi-casting bulges 7 between the first branch flow channel bulges 2 and the second branch flow channel bulges 3 and on the outer side of the second vertical pouring gate, and fourth transverse bulges 12 on the right side of the fourth node are respectively connected with the semi-casting bulges 7 on the right side of the second vertical pouring gate; the total number of the nine half-casting bulges 7 is provided, namely nine valve cover type castings can be produced simultaneously, so that the production cost and the labor intensity are reduced, the production efficiency is improved, and the mass production can be realized.
The height of the pouring bulge 4 is higher than that of the first main pouring channel bulge 5, the second main pouring channel bulge 6, the first branch flow channel bulge 2, the second branch flow channel bulge 3 and the half casting bulge 7. Install first mould and second mould in the corresponding position of shooting the sand machine, during shooting, first mould and second mould compound die, the protruding 4 laminating of pouring of first mould and the protruding 4 laminating of pouring of second mould can not leave the clearance, and the two-sided shell of so preparation will form the sprue gate, and corresponding first main pouring gate arch 5, second main pouring gate arch 6, first branch runner arch 2, second branch runner arch 3 and half casting protruding 7 after first mould and second mould compound die all leave great clearance between all, the grit fills up this clearance during shooting sand. The first main pouring gate bulge 5, the second main pouring gate bulge 6, the first branch flow channel bulge 2 and the second branch flow channel bulge 3 are all used for forming flow channels of the precoated sand double-sided shell, and the semi-casting bulge 7 is used for forming each semi-casting depression.
The sand shooting nozzle of the sand shooting machine is communicated with the sand shooting port, the sand shooting machine shoots sand into the shell mold cavity by pressure and heats the sand to form a double-sided shell, the double-sided shell is horizontally placed, and the double-sided shell can be horizontally overlapped. After the multilayer is overlapped, molten iron is poured into the double-sided shell through the pouring gate, a plurality of valve cover type castings can be prepared in one batch, the batch production of the gearbox body can be realized, the valve cover type castings output through the double-sided shell type molten iron pouring are high in precision, labor is saved, the process is simple, and the production efficiency is high.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. A mould for preparing valve gap class foundry goods double-sided shell mould which characterized in that includes:
a first die, wherein a first cavity for preparing one side of the double-sided shell is arranged on the inner side surface of the first die, the first cavity is provided with a first branch flow channel bulge, a second branch flow channel bulge, a pouring bulge, a first main flow channel bulge, a second main flow channel bulge and a semi-casting bulge matched with a valve cover type casting, the pouring bulge is positioned in the middle of the top end of the first cavity, the first main runner bulge and the second main runner bulge are respectively arranged on two sides of the pouring bulge, the first branch flow channel bulge is vertically arranged below the first main flow channel bulge, the second branch flow channel bulge is vertically arranged below the second main flow channel bulge, two sides of the first branch flow channel bulge are at least provided with two half-casting bulges along the length direction of the first branch flow channel bulge, and the outer side of the second branch flow channel bulge is provided with at least two half-casting bulges along the length direction of the second branch flow channel bulge; the first branched flow channel bulge is provided with a first node and a second node, one side of the first node, which is far away from the second branched flow channel bulge, is connected with a first transverse bulge, two sides of the second node are both connected with second transverse bulges, the second branched flow channel bulge is provided with a third node and a fourth node, two sides of the third node are both connected with third transverse bulges, and one side of the fourth node, which is far away from the first branched flow channel bulge, is connected with a fourth transverse bulge; the first transverse bulge, the second transverse bulge, the third transverse bulge and the fourth transverse bulge are respectively connected with one adjacent semi-casting bulge, the first node and the third node are symmetrically arranged, and the second node and the fourth node are symmetrically arranged;
the inner side surface of the second die is provided with a second cavity for preparing the other surface of the double-sided shell type;
and when the second mold and the first mold are closed, a shell mold cavity matched with the double-sided shell mold is formed inside the second mold and the first mold.
2. The die for preparing the double-sided shell type of the valve cover type casting according to claim 1, wherein: the second transverse bulges on two sides of the second node are symmetrically arranged, and the third transverse bulges on two sides of the third node are symmetrically arranged.
3. The die for preparing the double-sided shell type of the valve cover type casting according to claim 1, wherein: the semi-casting bulges on two sides of the first branch flow channel are arranged at equal intervals, and the semi-casting bulges on one side of the second branch flow channel are arranged at equal intervals.
4. The die for preparing the double-sided shell type of the valve cover type casting according to claim 1, wherein: and after the die is closed, the first half sand shooting port on the first die and the second half sand shooting port on the second die are combined into a sand shooting port.
5. The die for preparing the double-sided shell type of the valve cover type casting according to claim 1, wherein: the inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
6. The die for preparing the double-sided shell type of the valve cover type casting according to claim 1, wherein: the connecting plate is used for connecting the first die with the second die through the first screw hole and the second screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922447771.6U CN211564437U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing two-sided shell mould of valve gap class foundry goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922447771.6U CN211564437U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing two-sided shell mould of valve gap class foundry goods |
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| Publication Number | Publication Date |
|---|---|
| CN211564437U true CN211564437U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922447771.6U Active CN211564437U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing two-sided shell mould of valve gap class foundry goods |
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| Country | Link |
|---|---|
| CN (1) | CN211564437U (en) |
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- 2019-12-30 CN CN201922447771.6U patent/CN211564437U/en active Active
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