CN218611549U - Take tectorial membrane sand mould of loose piece - Google Patents
Take tectorial membrane sand mould of loose piece Download PDFInfo
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- CN218611549U CN218611549U CN202222904823.XU CN202222904823U CN218611549U CN 218611549 U CN218611549 U CN 218611549U CN 202222904823 U CN202222904823 U CN 202222904823U CN 218611549 U CN218611549 U CN 218611549U
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Abstract
The utility model provides a precoated sand mold with a loose piece, which comprises a male mold and a female mold, wherein a first male mold block is arranged on the male mold; a first concave cavity is formed in the female die, a sand shell model cavity is formed between the first concave cavity and the first male die block, and the sand shell model cavity is used for generating a precoated sand model of a semi-iron ball piece; the auxiliary plate is arranged in the first cavity and is detachable from the first cavity. By arranging the auxiliary plate, the shell between the auxiliary plate and the first concave cavity is detached, and the shell and the sand shell model can be directly separated from the first concave cavity when demoulding is carried out, so that the sand shell model is prevented from interfering with the first concave cavity, demoulding is convenient, and the production cost is lower; through setting up protruding module of second and second cavity to can penetrate sand to two sand shell model chambeies simultaneously, two tectorial membrane sand model assemblies form whole iron ball spare, can improve the efficiency of casting iron ball spare, need not to use a plurality of moulds, further reduce cost.
Description
Technical Field
The utility model relates to a tectorial membrane sand mold technical field especially relates to a tectorial membrane sand mold of area loose piece.
Background
The method is characterized in that the sand is coated, the surface of sand grains is coated with a layer of molding sand or core sand of a solid resin film before modeling, two coating processes of a cold method and a hot method are adopted, the method is used for casting steel castings and iron castings, particularly for casting ductile iron castings with complex internal structures, because the shell mold of the ductile iron castings with complex internal structures is formed by splicing an upper shell mold and a lower shell mold of two bowl-shaped structures, a convex structure is arranged in the ductile iron castings, and the shell mold is required to be provided with the same convex structure as the ductile iron castings. However, if the inside of the precoated sand mold is provided with the protrusions, the shell mold is not convenient to demold.
The Chinese patent with publication number CN109175234A discloses a bolt precoated sand mold, and in the actual use process, the problem that the demolding is inconvenient and the casting cost is high due to the fact that a bulge and a partition bulge are required to be arranged in the precoated sand mold and are matched with the irregular shape of a bolt, so that the shape meeting the requirement can be produced, but the demolding is inconvenient due to the bulge mode, and the demolding is performed by using other modes such as demolding oil and the like, so that the production cost is increased.
Aiming at the defects of the prior art, the inventor finds out that the fundamental reason is that the required shape is produced in a protruding mode, so that the problems of inconvenience in demoulding and high casting cost exist, and in order to solve the technical problems, a precoated sand mould with a loose block and convenient for demoulding is needed to be provided.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a keeper tectorial membrane sand mould, it can be dismantled the arch, the convenient drawing of patterns, casting low cost.
The technical scheme of the utility model is realized like this: the utility model provides a precoated sand mold with a loose piece, which comprises a male mold and a female mold, wherein,
a first convex module is arranged on the convex die;
a first concave cavity is formed in the female die, a sand shell mold cavity is formed between the first concave cavity and the first male die block, and the sand shell mold cavity is used for generating a precoated sand model of a semi-iron ball piece;
and an auxiliary plate, wherein,
the auxiliary plate is arranged in the first concave cavity and used for forming a protruding adaptive precoated sand model and can be detached from the first concave cavity.
On the basis of the above technical solution, preferably, the auxiliary plate includes a mounting plate and a projection plate, wherein,
the mounting plate is arranged on the inner wall of the first concave cavity;
the convex plate is arranged on the mounting plate.
Still further preferably, the projection plate includes a permanent magnet plate and a movable block, wherein,
the permanent magnet plate is fixed on the mounting plate, so that the mounting plate is adsorbed with the first concave cavity;
the loose piece is arranged on the permanent magnet plate.
Further preferably, the permanent magnet plate is provided with an installation groove, and the movable block is arranged in the installation groove and adsorbed on the permanent magnet plate.
Still more preferably, a permanent magnet is embedded in the permanent magnet plate, and the permanent magnet makes the permanent magnet plate have magnetism.
On the basis of the technical scheme, preferably, still be provided with the second convex mould piece on the terrace die, be provided with on the die with second convex mould piece complex second cavity, form sand shell model cavity between second convex mould piece and the second cavity, sand shell model cavity is used for generating the tectorial membrane sand model of half iron ball spare, and two tectorial membrane sand model assemblies form whole iron ball spare.
On the basis of the technical scheme, preferably, the female die is provided with a sand shooting hole for a sand shooting machine to shoot sand.
On the basis of the technical scheme, preferably, the male die and the female die are both provided with demoulding holes for the ejector rod to eject the formed precoated sand model.
On the basis of the technical scheme, preferably, the male die is provided with a positioning pile, and the female die is provided with a positioning hole matched with the positioning pile.
The utility model discloses a take tectorial membrane sand mould of loose piece has following beneficial effect for prior art:
(1) By arranging the auxiliary plate, the shell between the auxiliary plate and the first concave cavity is disassembled, so that the auxiliary plate can form a sand shell model cavity, and can be directly separated from the first concave cavity with the sand shell model during demoulding, and then the auxiliary plate can be separated from the sand shell model, so that the sand shell model is prevented from interfering with the first concave cavity, demoulding is convenient, and the production cost is lower;
(2) Through setting up the protruding module of second and second cavity to can shoot sand to two sand shell model cavities simultaneously, two tectorial membrane sand model assemblies form whole iron ball spare, can improve the efficiency of casting iron ball spare, need not to use a plurality of moulds, further reduce the cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a precoated sand mold with loose pieces according to the present invention;
FIG. 2 is a schematic structural view of an auxiliary plate in the precoated sand mold with loose pieces according to the present invention;
FIG. 3 is a schematic structural view of a male mold in the precoated sand mold with loose pieces according to the present invention;
fig. 4 is the utility model discloses a take structural schematic of die in tectorial membrane sand mould of loose piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1-4, the precoated sand mold with loose pieces of the present invention comprises a male mold 1 and a female mold 2, wherein the male mold 1 is provided with a first male mold block 11; a first concave cavity 110 is arranged on the female die 2, a sand shell mold cavity is formed between the first concave cavity 110 and the first male die block 11, and the sand shell mold cavity is used for generating a precoated sand model of a semi-iron ball piece; the sand mold further comprises an auxiliary plate 3, wherein the auxiliary plate 3 is arranged in the first cavity 110 and used for forming a convex fit precoated sand model and is detachable from the first cavity 110.
Specifically, the male die 1 and the female die 2 are made of high-temperature resistant metal materials such as iron or steel and the like, and are matched for use; specifically, the first cavity 110 is filled with the first male mold block 11 and the auxiliary plate 3, and the rest space is the sand shell mold cavity, so that a sand core is not needed, and the cost is reduced.
As a preferred embodiment, the auxiliary plate 3 includes a mounting plate 31 and a raised plate 32, wherein the mounting plate 31 is disposed on an inner wall of the first cavity 110; the projection plate 32 is provided on the mounting plate 31.
Specifically, the mounting plate 31 is fixed with the first cavity 110 by direct welding, and the installation of the protruding plate 32 is adopted, so that the groove shape on the outer wall of the iron ball fitting is adapted, and the casting of the iron ball fitting with the groove can be realized.
As a preferred embodiment, the protruding plate 32 includes a permanent magnet plate 321 and a movable block 322, wherein the permanent magnet plate 321 is fixed on the mounting plate 31, so that the mounting plate 31 is attracted to the first cavity 110; the loose piece 322 is arranged on the permanent magnet plate 321.
Specifically, the mounting plate 31 is provided with a limiting groove for placing the permanent magnet plate 321, and the mounting plate is fixed in a welding mode, and the gap between the mounting plate 31 and the permanent magnet plate 321 is filled and leveled by welding seams, so that the mounting plate is convenient to use.
In a preferred embodiment, the permanent magnet plate 321 is provided with a mounting groove 320, and the movable block 322 is disposed in the mounting groove 320 and is adsorbed on the permanent magnet plate 321.
Specifically, loose piece 322 can slide in mounting groove 320, and the upper and lower direction is spacing relatively, is linear motion, can fix under permanent magnetism board 321's adsorption, and mounting groove 32 is provided with two to become "eight" form and distribute, because the surface of iron ball spare is the inclined plane, thereby two loose pieces 322 can't outwards remove, consequently, avoid because the phenomenon that the position of loose piece 322 took place to remove, guarantee the qualification rate of sand shell model.
In a preferred embodiment, a permanent magnet is embedded in the permanent magnet plate 321, and the permanent magnet makes the permanent magnet plate 321 have magnetism.
Specifically, permanent magnetism board 321 is provided with a plurality ofly, and even and the interval sets up in the both sides of permanent magnetism board 321, and the permanent magnet of one side adsorbs mounting panel 31, and then makes mounting panel 31 adsorb first cavity 110, and the permanent magnet of opposite side adsorbs loose piece 322, and is specific, and mounting panel 31 and loose piece 322 all adopt steel to make, can be attracted by the permanent magnet.
In addition, loose piece 322 also can be dismantled to conveniently change loose piece 322 of different shapes and size, thereby can be suitable for different tectorial membrane sand moulds, generate the product of different shapes, and the suitability is stronger, practices thrift manufacturing cost.
As a preferred embodiment, the male die 1 is further provided with a second male die block 12, the female die 2 is provided with a second concave cavity 120 matched with the second male die block 12, a sand shell mold cavity is formed between the second male die block 12 and the second concave cavity 120, the sand shell mold cavity is used for generating a precoated sand mold of the other half of the iron ball, and the two precoated sand molds are assembled to form the whole iron ball.
Specifically, through the first male die block 11, the first cavity 110, the second male die block 12 and the second cavity 120, the first half part and the second part of the iron ball piece can be formed at the same time, the first half part and the second part form the iron ball piece after being assembled, one iron ball piece can be formed at one time, multiple forming is not needed, the efficiency is improved, and the cost is reduced.
In a preferred embodiment, the female die 2 is provided with a sand shooting hole 20 for a sand shooting machine to shoot sand.
Specifically, terrace die 1 and die 2 perpendicular to ground are placed, and penetrate sand hole 20 down to make things convenient for perpendicular penetrate sand, penetrate the sand direction from top to bottom, through the action of gravity, the die cavity can better be filled to the tectorial membrane sand, improves the density of tectorial membrane sand model, and the quality is better.
In a preferred embodiment, the punch 1 and the die 2 are both provided with a demoulding hole 10 for an ejector rod to eject the formed precoated sand model.
Specifically, in the using process of the male die 1 and the female die 2, an ejector rod can be inserted into the demolding hole 10, and the ejector rod can eject the mold.
In a preferred embodiment, the male die 1 is provided with a positioning pile 13, and the female die 2 is provided with a positioning hole 130 matched with the positioning pile 13.
Specifically, the cooperation of spud 13 and locating hole 130 is used for terrace die 1 and the convenient compound die of die 2, convenient location can improve terrace die 1 and the compound die precision of die 2, avoids because the tectorial membrane sand model that terrace die 1 and the compound die 2 compound die error lead to is unqualified.
The working principle of the embodiment is as follows:
firstly, placing a male die 1 and a female die 2 perpendicular to the ground, enabling a sand shooting hole 20 to face downwards, enabling sand shooting direction to be from top to bottom, and enabling precoated sand to better fill a cavity under the action of gravity;
then, the male die 1 and the female die 2 are matched through the positioning pile 13 and the positioning hole 130;
then, the sand shooting machine vertically shoots sand through the sand shooting holes 20, and the sand shooting direction is from top to bottom until a precoated sand model is completely generated;
after the male die 1 and the female die 2 are separated, the auxiliary plate 3 and the precoated sand model are ejected through the ejection rod, and the auxiliary plate 3 and the first cavity 110 are adsorbed and fixed through the magnetic force of the permanent magnet, so that the precoated sand model can take the auxiliary plate 3 out in the demolding process;
and finally, separating the auxiliary plate 3 from the sand shell model, and generating the next precoated sand model by only placing the auxiliary plate 3 in the original position.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A precoated sand mold with loose pieces comprises a male mold (1) and a female mold (2), wherein,
a first convex module (11) is arranged on the convex die (1);
a first concave cavity (110) is formed in the female die (2), a sand shell model cavity is formed between the first concave cavity (110) and the first male die block (11), and the sand shell model cavity is used for generating a precoated sand model of a semi-iron ball piece;
the method is characterized in that: also comprises an auxiliary plate (3), wherein,
the auxiliary plate (3) is arranged in the first cavity (110) and used for forming a convex adaptive precoated sand model, and the auxiliary plate is detachable from the first cavity (110).
2. The precoated sand mold with a loose piece according to claim 1, wherein: the auxiliary plate (3) comprises a mounting plate (31) and a raised plate (32), wherein,
the mounting plate (31) is arranged on the inner wall of the first cavity (110);
the projection plate (32) is provided on the mounting plate (31).
3. The precoated sand mold with a loose piece according to claim 2, wherein: the convex plate (32) comprises a permanent magnet plate (321) and a movable block (322), wherein,
the permanent magnet plate (321) is fixed on the mounting plate (31) so that the mounting plate (31) is adsorbed with the first concave cavity (110);
the movable block (322) is arranged on the permanent magnet plate (321).
4. The precoated sand mold with a loose piece according to claim 3, wherein: the permanent magnet plate (321) is provided with an installation groove (320), and the movable block (322) is arranged in the installation groove (320) and adsorbed on the permanent magnet plate (321).
5. The precoated sand mold with a loose piece according to claim 3, wherein: the permanent magnet plate (321) is embedded with a permanent magnet, and the permanent magnet enables the permanent magnet plate (321) to have magnetism.
6. The precoated sand mold with a loose piece according to claim 1, wherein: the iron ball casting die is characterized in that a second male die block (12) is further arranged on the male die (1), a second concave cavity (120) matched with the second male die block (12) is arranged on the female die (2), a sand shell mold cavity is formed between the second male die block (12) and the second concave cavity (120), the sand shell mold cavity is used for generating a precoated sand model of the other half iron ball piece, and the two precoated sand models are assembled to form the whole iron ball piece.
7. The precoated sand mold with a loose piece according to claim 1, wherein: and the female die (2) is provided with a sand shooting hole (20) for a sand shooting machine to shoot sand.
8. The precoated sand mold with a loose piece according to claim 1, wherein: and demolding holes (10) are formed in the male mold (1) and the female mold (2) respectively and are used for ejecting the formed precoated sand model by an ejector rod.
9. The precoated sand mold with a loose piece according to claim 1, wherein: the male die (1) is provided with a positioning pile (13), and the female die (2) is provided with a positioning hole (30) matched with the positioning pile (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904823.XU CN218611549U (en) | 2022-11-02 | 2022-11-02 | Take tectorial membrane sand mould of loose piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222904823.XU CN218611549U (en) | 2022-11-02 | 2022-11-02 | Take tectorial membrane sand mould of loose piece |
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| CN218611549U true CN218611549U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222904823.XU Active CN218611549U (en) | 2022-11-02 | 2022-11-02 | Take tectorial membrane sand mould of loose piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444154A (en) * | 2023-12-21 | 2024-01-26 | 平遥县北三狼腾胜铸造有限公司 | Precoated sand casting device |
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- 2022-11-02 CN CN202222904823.XU patent/CN218611549U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117444154A (en) * | 2023-12-21 | 2024-01-26 | 平遥县北三狼腾胜铸造有限公司 | Precoated sand casting device |
| CN117444154B (en) * | 2023-12-21 | 2024-03-08 | 平遥县北三狼腾胜铸造有限公司 | Precoated sand casting device |
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