CN219151507U - Casting die for steel feeding plate - Google Patents

Abstract

The utility model discloses a steel feeding plate casting die, and belongs to the field of metallurgical casting. The mold comprises an upper mold and a lower mold which are matched with each other, wherein an upper cavity is formed in the inner side of the upper mold, a lower cavity matched with the upper cavity is formed in the inner side of the lower mold, a sprue is formed in the middle of the upper cavity, a sprue gate matched with the sprue is formed in the lower mold, and sprue channels are formed in two sides of the sprue gate in an extending mode; and a row of blind risers are respectively arranged on two sides of the upper cavity, and necking risers with diameters and heights larger than those of the blind risers are arranged on the outer sides of the blind risers. The utility model changes the structure of the core casting mould and can prepare the high-quality core for casting the feeding plate.

Description

Casting die for steel feeding plate

Technical Field

The utility model belongs to the field of metallurgical casting, and particularly relates to a steel feeding plate casting die.

Background

At present, the existing steel parts are generally formed by stamping or casting, wherein the parts cast by stamping are subjected to larger external force in the stamping process, so that the quality of the parts is affected to a certain extent, and the problems of deformation, internal cracking and the like occur, and therefore, many existing factories can use casting for manufacturing the parts.

The mold is required to be used for casting the part by casting, but the use times of the mold are limited, and the mold cannot be used continuously after being cast for many times, so that the mold core produced by sand casting is used for replacing the mold in the prior art. Sand casting refers to a casting process that produces castings in sand molds. Steel, iron and most nonferrous alloy castings are obtained by sand casting methods. Because the molding materials used for sand casting are cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould is suitable for single-piece production, batch production and mass production of castings, thereby saving a large amount of cost.

For example, the Chinese patent application number is: CN201210553738.1, publication date: patent literature on the day of 2016 1 month 27 discloses a cylinder cap casting die in automobile parts field, including by first side form, second side form, first end form, second end form and die block enclose the metal form, and be located the inner chamber psammitolite in the die cavity of metal form, the top of first end form is equipped with the pouring basin, first side form with the second side form all embeds with the runner of pouring basin intercommunication, the bottom of runner be equipped with a plurality of with the gap type internal gate of die cavity intercommunication of metal form. The technical effects are as follows: the casting mold has the advantages of high compactness of the cylinder cover, good sealing performance, good mechanical performance and high dimensional accuracy. The utility model also discloses a cylinder cover casting method in the field of automobile parts, which comprises the steps of firstly placing an inner cavity sand core on a bottom die, then assembling a metal die, and then carrying out bilateral gravity casting.

The above scheme is to prepare the casting through the core, however, when the core is manufactured in the prior art, the cast core is easy to deform and shrink in the prior art due to the structure of the manufacturing mold and the matching process problem, so that the casting cast subsequently is influenced. At present, no casting mold has been developed in the prior art which can well solve the above problems and is specially used for preparing a core for casting a feed plate having a structure as shown in fig. 1.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem that the shrinkage cavity deformation condition during the preparation of the core is not well solved in the prior art and the casting mold is specially used for preparing the core for casting the feeding plate with the structure shown in the figure 1, the utility model provides the steel feeding plate casting mold, the structure of the core casting mold is changed in consideration of the quality problem possibly occurring in the preparation process of the core, and the high-quality core for casting the feeding plate can be prepared.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The steel feeding plate casting die comprises an upper die and a lower die which are matched with each other, wherein an upper cavity is formed in the inner side of the upper die, a lower cavity matched with the upper cavity is formed in the inner side of the lower die, a sprue is formed in the middle of the upper cavity, a sprue port matched with the sprue is formed in the lower die, and sprue channels are formed in two sides of the sprue port in an extending mode; and a row of blind risers are respectively arranged on two sides of the upper cavity, and necking risers with diameters and heights larger than those of the blind risers are arranged on the outer sides of the blind risers.

As a further improvement of the technical scheme, the blind riser is provided with an exhaust hole.

As a further improvement of the technical scheme, the upper part of the necking riser is provided with a heating cover.

As a further improvement of the technical scheme, the heating cover is provided with a layer of heat-insulating covering agent.

As a further improvement of the technical scheme, positioning blocks are arranged on the inner sides of the upper die and the lower die, and positioning holes matched with the positioning blocks of the other half of the die are formed in the upper die and the lower die respectively.

As a further improvement of the technical scheme, the lower dies at the two ends of the lower cavity are provided with chill.

As a further improvement of the technical scheme, a layer of chrome ore sand is arranged between the chill and the lower cavity.

As a further improvement of the technical scheme, the lower die is provided with an air outlet.

As a further improvement of the technical scheme, the air outlet holes are provided with two rows and symmetrically arranged at two sides of the lower cavity.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the steel feeding plate casting mold, the pouring gate channels extending to two sides are arranged at the pouring gate openings, so that casting materials can smoothly and rapidly circulate and fill the whole cavity, cooling stagnation caused by untimely circulation of the casting materials is avoided, and core manufacturing failure is avoided;

(2) According to the steel feeding plate casting mold, the vent hole is formed in the blind riser, the heating cover is arranged at the upper part of the necking riser, and the heat-insulating covering agent is arranged on the heating cover, so that the molding process of the mold core is smoother, the quality of the molded mold core is improved, and a casting of the high-quality stator pressing ring is finally prepared through the mold core;

(3) According to the steel feeding plate casting die, the positioning blocks and the positioning holes which are matched with each other are arranged on the upper die and the lower die, so that the upper die and the lower die can be rapidly and accurately closed, and the mold core is prevented from being deformed due to the influence of the closing precision;

(4) According to the steel feeding plate casting die, the chill is arranged on the lower dies at the two ends of the lower die cavity, so that the local cooling speed of a specific position of a core can be increased during casting, the mold is matched with a riser, the solidification sequence of each position of the core is controlled, a high-quality core is obtained, and a layer of chromite sand is arranged between the chill and the lower die cavity, so that the problem that casting materials are adhered with the chill to cause difficult removal after molding can be avoided.

Drawings

FIG. 1 is a schematic structural view of a feeding plate prepared correspondingly with a core prepared according to the present utility model;

FIG. 2 is a schematic view of the structure of the upper mold of the present utility model;

FIG. 3 is a schematic view of the structure of the lower mold of the present utility model;

in the figure: 1. an upper die; 11. an upper cavity; 12. a sprue; 13. blind riser; 14. necking down a riser; 2. a lower die; 21. a lower cavity; 22. a gate; 23. a runner channel; 24. an air outlet hole; 3. a positioning block; 4. and (3) cooling iron.

Detailed Description

Exemplary embodiments of the present utility model are described in detail below. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the utility model, it is to be understood that other embodiments may be realized and that various changes to the utility model may be made without departing from the spirit and scope of the utility model. The following more detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely illustrative and not limiting of the utility model's features and characteristics in order to set forth the best mode of carrying out the utility model and to sufficiently enable those skilled in the art to practice the utility model. Accordingly, the scope of the utility model is limited only by the attached claims.

Example 1

A steel feeding plate casting mould is used for metallurgical casting to prepare a core for casting a steel feeding plate, the structure of the feeding plate is shown in figure 1, so that the cost consumed by the mould in manufacturing the feeding plate is saved, and the specific structure and technical effects of the mould are described in detail below.

As shown in fig. 2 and 3, the mold comprises an upper mold 1 and a lower mold 2 which are matched with each other, an upper cavity 11 is formed on the inner side of the upper mold 1, a lower cavity 21 matched with the upper cavity 11 is formed on the inner side of the lower mold 2, and the specific structures of the upper cavity 11 and the lower cavity 21 are as shown in fig. 2 and 3 and correspond to the structure of a core to be prepared. The middle part of the upper cavity 11 is provided with a sprue 12, the lower die 2 is provided with a sprue port 22 matched with the sprue 12, and two sides of the sprue port 22 are extended with sprue channels 23. By arranging the pouring channel 23 extending to two sides at the pouring gate 22, the casting material can smoothly and rapidly flow and spread over the whole cavity, the cooling stagnation caused by untimely flow of the casting material is avoided, the core manufacturing failure is avoided,

in addition, a row of blind risers 13 are respectively arranged on two sides of the upper cavity 11, and necking risers 14 with diameters and heights larger than those of the blind risers 13 are arranged on the outer sides of the blind risers 13. During casting, through the riser arrangement mode, the molding of the core can be greatly compensated during casting, the conditions of shrinkage cavity, shrinkage porosity and the like of the core are prevented, and the molding quality of the core is improved.

It should be noted that the blind riser 13 of this embodiment is provided with an exhaust hole, the upper portion of the necking riser is provided with a heating cover, and the heating cover is provided with a layer of heat-insulating covering agent. Through the improvement of the riser structure, the molding process of the mold core can be smoother, the quality of the molded mold core is improved, and therefore the high-quality casting of the stator pressing ring is finally prepared through the mold core.

When the mold is used, the upper mold and the lower mold are aligned and clamped, and then the mold is put into a sand box for injection casting of the mold core, and finally the mold core is formed. Therefore, the accuracy of the clamping of the upper and lower molds is important for the quality of the finally formed cores. In view of this, in this embodiment, the positioning blocks 3 are disposed on the inner sides of the upper die 1 and the lower die 2, and the upper die 1 and the lower die 2 are also provided with positioning holes corresponding to the size structure and the position of the positioning blocks 3 of the other half of the die respectively, so that the upper die and the lower die can rapidly and accurately complete die assembly, and the die assembly precision is prevented from being affected to cause deformation of the core.

In addition, in this embodiment, the chill 4 is further arranged on the lower mold 2 at two ends of the lower cavity 21, so that the local cooling speed of a specific position of the core can be increased during casting, and the mold core can be matched with the riser, so that the solidification sequence of each position of the core can be controlled, and a high-quality core can be obtained. Meanwhile, a layer of chrome ore is arranged between the chill 4 and the lower cavity 21, so that the problem that the casting material is adhered to the chill to cause difficult removal after the core is formed can be avoided.

In addition, two air discharge holes 24 are symmetrically arranged on the lower die 2 at two sides of the lower die cavity 21 in the embodiment, so that the air circulation in the die cavity can be ensured during casting, and the core forming effect is improved.

In summary, according to the steel feeding plate casting mold of the embodiment, the structure of the core casting mold is changed in consideration of the quality problem possibly occurring in the core preparation process, so that the core for casting the feeding plate with high quality can be prepared.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (9)

1. The utility model provides a steel delivery plate casting mould, includes upper mould (1) and lower mould (2) that mutually support, the inboard of upper mould (1) has upper die cavity (11), the inboard of lower mould (2) has lower die cavity (21) with last die cavity (11) assorted, its characterized in that: the middle part of the upper cavity (11) is provided with a sprue (12), the lower die (2) is provided with a sprue port (22) matched with the sprue (12), and two sides of the sprue port (22) are extended with sprue channels (23); two sides of the upper cavity (11) are respectively provided with a row of blind risers (13), and the outer sides of the blind risers (13) are provided with necking risers (14) with diameters and heights larger than those of the blind risers (13).

2. The steel feed plate casting die according to claim 1, wherein: and the blind riser (13) is provided with an exhaust hole.

3. A steel feed plate casting mold according to claim 2, wherein: the upper part of the necking riser (14) is provided with a heating cover.

4. A steel feed plate casting mold according to claim 3, wherein: the heating cover is provided with a layer of heat-insulating covering agent.

5. The steel feed plate casting die according to claim 1, wherein: the inner sides of the upper die (1) and the lower die (2) are provided with positioning blocks (3), and the upper die (1) and the lower die (2) are also respectively provided with positioning holes matched with the positioning blocks (3) of the other half of the die.

6. The steel feed plate casting die according to claim 1, wherein: and chill (4) is arranged on the lower die (2) at two ends of the lower die cavity (21).

7. The steel feed plate casting die according to claim 6, wherein: a layer of chrome ore sand is arranged between the chill (4) and the lower cavity (21).

8. A steel feeder plate casting die according to any one of claims 1 to 7, wherein: and the lower die (2) is provided with an air outlet hole (24).

9. The steel feed plate casting die according to claim 8, wherein: the air outlet holes (24) are arranged in two rows and symmetrically arranged on two sides of the lower cavity (21).

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