CN218963949U - Suspension type iron cap vertical line mould integrated dry core and core structure - Google Patents

Abstract

The utility model discloses an integrated dry core and core structure of a vertical line mould of a suspension type iron cap, and relates to the technical field of suspension type iron cap moulds. The utility model realizes the integrated design of two dry cores and improves the production efficiency and quality.

Description

A suspended iron cap vertical line mold integrated dry core and core structure

technical field

The utility model relates to the technical field of a suspended iron cap mold, in particular to an integrated dry core and core structure of a suspended iron cap vertical line mold.

Background technique

As an important category of power fittings, iron caps are key products for building infrastructure in the power field. The inner cavity structure of the suspended iron cap is unique. When considering the design of the vertical line mold, the design method of two dry cores for one product is usually adopted for this product, that is, the inner cavity of the large cap mouth and the inner cavity of the cap socket need to be designed separately. One dry core, one product and two dry core design methods will result in the need to design and develop two core boxes during product development, which not only affects the delivery time of product tools and new products, but also increases the difficulty of product scheduling. Once the product enters mass production, the demand for core boxes will increase exponentially, and the overall production cost will increase sharply.

Utility model content

Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide an integrated dry core and core structure of a suspended iron cap vertical line mold, which realizes the integrated design of two dry cores and improves production efficiency and quality.

In order to achieve the above object, the utility model is realized through the following technical solutions:

In the first aspect, the embodiment of the utility model provides an integrated dry core of a suspended iron cap vertical line mold, which includes a main beam of the dry core, and two symmetrical parts are connected to both sides of the main beam of the dry core, and each part includes a cap mouth The dry core part and the cap socket dry core part, the cap mouth dry core part is connected with the dry core main beam through the Y-shaped cap port connecting rib, and the cap socket dry core part is connected with the dry core main beam through the T-shaped cap socket connecting rib to form Two kinds of dry core integrated structure.

As a further implementation, the centers of the two hat mouth dry cores are located on the same horizontal line, and the hat mouth core head positioning parts are symmetrically arranged on both sides of the hat mouth dry core parts, and the connecting line of the two hat mouth core head positioning parts is connected to the cap The line connecting the center of the dry mouth core is vertical.

As a further implementation manner, the cross-section of the brim core positioning portion is elliptical.

As a further implementation manner, a dry core crossbeam positioning part is provided at the connection end of the Y-shaped cap opening connecting rib and the dry core main beam.

As a further implementation manner, the cross section of the dry core beam positioning part is square.

As a further implementation manner, a local reinforcement area is provided at the connection end of the dry core girder and the T-shaped cap socket connection rib.

As a further implementation, the small head of the dry core of the cap socket is connected to the side of the main beam of the dry core through a reinforcing rib, and a reserved area for a riser is formed between the reinforcing rib, the main beam of the dry core and the connecting rib of the T-shaped cap socket .

In the second aspect, the embodiment of the present utility model also provides a core structure of a suspension iron cap vertical line mold, including the integrated dry core, and the integrated dry core cooperates with the mold to form the core structure.

As a further implementation, the mold is provided with a mold cavity that is compatible with the integrated dry core, and the Y-shaped cap opening connecting rib, the T-shaped cap socket connecting rib, and the main beam of the dry core are in clearance fit with the cavity.

As a further implementation manner, the dry core beam positioning part is in interference fit with the cavity.

The beneficial effects of the utility model are as follows:

(1) The utility model connects the two dry cores into one body through the main beam of the dry core, the connecting rib of the Y-shaped cap opening, and the connecting rib of the T-shaped cap socket. The efficiency of cold box production is greatly improved, which saves the cost of making core boxes and reduces the cost of research and development on the design side.

(2) The double-side elliptical positioning design is added to the head of the dry core of the cap mouth of the utility model, which effectively avoids the over-tolerance problem of the wall thickness deviation of the casting caused by the dry core fracture caused by the force of the molten iron when the molten iron is filling the mold; Increase the design of reinforcing ribs in the dry core area of the cap socket, so that the relatively fragile small core head of the cap socket has higher strength, which solves the problem of broken cores in core making or molding; the bottom of the main girder of the dry core is designed with a reserved area for the pouring riser. There is space to store molten iron, and the cap mouth is built into the dry core to achieve good feeding of the hot joints on the head of the iron cap.

(3) The Y-shaped cap opening connecting rib, the T-shaped cap socket connecting rib, the main beam of the dry core and the mold cavity of the utility model cooperate in clearance, effectively avoiding the quality problems caused by positioning sand extrusion and extrusion; the positioning part of the dry core beam and the The interference fit of the mold cavity can make the dry core squeeze into the sand mold through the interference after being lowered into the cavity to avoid the dry core from falling during production.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model.

Fig. 1 is a front view of an integrated dry core according to one or more embodiments of the present invention;

Fig. 2 is a three-dimensional view 1 of an integrated dry core according to one or more embodiments of the present invention;

Fig. 3 is a top view of the integrated dry core according to one or more embodiments of the present invention;

Fig. 4 is the second diagram of the integrated dry core body according to one or more embodiments of the present invention;

Fig. 5 is a front view of a mold according to one or more embodiments of the present invention;

Fig. 6 is a perspective view of a mold according to one or more embodiments of the present invention;

Fig. 7 is a front view of a core according to one or more embodiments of the present invention;

Fig. 8 is a top view of the core according to one or more embodiments of the present invention;

Fig. 9 is a perspective view of a core according to one or more embodiments of the present invention;

Fig. 10 is a schematic diagram of the actual application of the mold according to one or more embodiments of the present invention;

Figure 11 is a schematic diagram of the iron cap product structure.

Among them, 1. The dry core part of the cap socket, 2. The dry core part of the cap mouth, 3. The positioning part of the cap mouth core head, 4. The Y-shaped cap mouth connecting rib, 5. The dry core beam positioning part, 6. The dry core mark, 7. Main girder with dry core, 8. Reinforcing rib, 9. Reserved area for pouring riser, 10. Partially reinforced area, 11. Iron cap casting, 12. T-shaped cap socket connecting rib, 13. Inner cavity of large cap mouth, 14 , Cap socket cavity.

Detailed ways

Embodiment one:

As shown in Figure 11, the cavity structure of the iron cap product includes a large cap mouth cavity 13 and a cap socket cavity 14, so it is necessary to design a dry core at the large cap cavity 13 and the cap socket cavity 14 respectively; a product Two types of dry cores require the design and development of two types of core boxes, which not only affects the delivery time of product tools and new products, but also increases the difficulty of product scheduling. This embodiment provides a suspended iron cap vertical line mold integrated dry core, which realizes two integrated dry core designs.

As shown in Figures 1-4, it includes the main beam 7 of the dry core, and two symmetrical parts are connected on both sides of the main beam 7 of the dry core, and each part includes the dry core part 1 of the cap socket, the dry core part 2 of the cap mouth, etc.; The dry core main beam 7 integrates two kinds of dry cores. Wherein, the shape of the cap socket dry core 1 is adapted to the shape of the cap socket cavity 14 , and the shape of the cap opening dry core 2 is adapted to the shape of the large cap cavity cavity 13 .

Specifically, as shown in FIG. 3 , the connecting line between the centers of the two parts of the cap mouth dry core 2 is located on the same horizontal line; taking the view direction of FIG. 1 as a reference, the cap mouth dry core 2 is located on the upper side of the cap socket dry core 1 . The two cap opening dry cores 2 are connected to one end of the dry core main beam 7 through the Y-shaped cap opening connecting rib 4, and the two cap socket dry core parts 1 are connected to the other end of the dry core main beam 7 through the T-shaped cap socket connecting rib 12 .

In this embodiment, the Y-shaped brim connecting rib 4 is a connecting rib for connecting the brim dry core 2 and the dry core girder 7, and its shape is Y-shaped, so as to form two brim dry cores 2, A dry core girder 7 is connected among the three. The T-shaped cap socket connecting rib 12 is a connecting rib for connecting the cap socket dry core 1 and the dry core main beam 7, and its shape is T-shaped, that is, its bifurcated part is relatively flat compared to the Y-shaped cap mouth connecting rib 4 .

As shown in Figures 2-4, the opening directions of the cap socket dry core 1 and the cap mouth dry core 2 are all upward; The connecting line of the center of the cap opening core head positioning part 3 and the center of the cap opening core head positioning part 2 on both sides of the cap opening dry core part 2 is perpendicular to the connecting line of the centers of the two cap opening dry core parts 2 .

In this embodiment, the cap mouth core head positioning portion 3 is a part protruding from the surface of the cap mouth dry core 2 , and its cross section is elliptical. The hat mouth core head positioning part 3 plays a role in stabilizing the dry core structure, and prevents the hat mouth dry core 2 from disconnecting under the force of molten iron, so as to avoid causing wall thickness deviation at the mouth of the iron cap casting 11 .

As shown in Fig. 2 and Fig. 3, the connecting end of the Y-shaped hat opening connecting rib 4 and the dry core main beam 7 is provided with a dry core beam positioning part 5, and the dry core beam positioning part 5 protrudes toward the front of the dry core main beam 7; Wherein, the side where the dry core mark 6 is set on the dry core girder 7 is taken as the front side. The dry core mark 6 is a concave mark, and the depth of the concave characters is 0.8-1mm; it can enable the workshop workers to more clearly identify the dry core product specifications and prevent the use of wrong dry cores.

In this embodiment, the cross section of the dry core beam positioning portion 5 is square.

The dry core part 2 of the hat opening of this embodiment adopts a core-pulling design, the minimum wall thickness at the dry core partition is not less than 7 mm, and the minimum wall thickness around the body is not less than 6 mm.

The connecting end of the main beam 7 of the dry core and the connecting rib 12 of the T-shaped cap socket is provided with a local reinforcement area 10 to strengthen the structure of the dry core and avoid stress concentration.

The bifurcated part of the T-shaped cap socket connecting rib 12 is connected to the bottom of the cap socket dry core 1 and its side, and the other side of the cap socket dry core 1 is connected to the main beam 7 of the dry core through a reinforcing rib 8, and the reinforcing rib 8 is located at The small head of the dry core of the cap socket; the design of reinforcing rib 8 in the dry core area of the cap socket is added to make the relatively fragile small core head of the cap socket stronger, which solves the problem of core making or molding broken cores.

A reserved area 9 for a pouring riser is formed between the reinforcing rib 8 , the dry core main beam 7 and the cap socket dry core 1 for storing molten iron. When the molten iron passes through the pouring riser reserved area 9 of the dry core along the mold pouring system, it will be filled with molten iron to form a feeding riser to effectively feed the hot joint of the casting. Increase the dry core girder 7 by more than 10mm above the reserved pouring riser area 9, so as to avoid the breakage of the dry core caused by the brittle structure at this part.

In this embodiment, a new breakthrough in the technology of this type of product has been achieved by designing the dry core of the cap opening and the cap socket as one, so that the dry core can be produced in combination with a cold box, and the efficiency is greatly improved. After the dry core is integrated, The production cost of the core box is saved, and the research and development cost is greatly reduced on the design side.

In this embodiment, the cap mouth part adopts the core-pulling design, and the limit minimum size of the wall thickness at the cured cap mouth is significantly lower than the dry core single weight of the original two dry core designs of one product; the dry core head of the cap mouth is increased. The double-sided elliptical positioning design effectively avoids the over-tolerance problem of the wall thickness deviation of the casting caused by the dry core fracture caused by the force of the molten iron when the molten iron is filled. Avoid positioning and rubbing sand in the process of setting the core, and there is no space for excess sand to be stored, which will cause a series of quality risks.

Embodiment two:

This embodiment provides a suspended iron cap vertical line mold core structure, including the integrated dry core described in Embodiment 1, as shown in Figures 7-9, the integrated dry core cooperates with the mold to form a core structure .

As shown in Figure 5 and Figure 6, the mold is provided with a cavity suitable for the integrated dry core, the Y-shaped cap mouth connecting rib 4, the T-shaped cap socket connecting rib 12, the main beam of the dry core 7 and the cavity gap Coordination; the dry core beam positioning part 5 is in interference fit with the mold cavity.

In this embodiment, as shown in Fig. 7 and Fig. 8, the positioning part 3 of the core head of the hat opening fits with the template with a gap of 0.1mm on one side, and the positioning of the template is 3-5mm higher than the positioning of the integrated core, and the storage in the space is too hard Cooperate with the small amount of molding sand squeezed in. There is a gap of 0.1mm on one side for the 4 joints of the Y-shaped cap opening to fit the dry core with the profile plate, which effectively avoids quality problems caused by positioning sand extrusion and extrusion. There is an interference fit of 0.2mm on one side between the dry core and the mold plate at the 5 positions of the dry core beam positioning part, which can make the dry core squeeze into the sand mold through the interference after it is lowered into the cavity to avoid the dry core from falling during production.

As shown in Figure 10, during molding production, the lower core frame brings the integrated dry core into the cavity, and the Y-shaped cap mouth connecting rib 4, T-shaped cap socket connecting rib 12, dry core The main beam 7 can easily enter the mold cavity, and the dry core beam positioning part 5, which is interference fit with the mold, is under the pressure of the lower core frame, and through the interference fit with the mold, there is an interference margin of 0.2mm on one side, and the Dry cores are brought into the cavity and are not carried out.

During the pouring process, the hat mouth core head positioning part 3 can stabilize the dry core structure, prevent the hat mouth dry core 2 from disconnecting under the force of molten iron, and avoid causing the wall of the iron cap casting 11 hat mouth. Thickness deviation, when the molten iron passes through the pouring riser reserved area 9 of the dry core along the mold gating system, it will be filled with molten iron to form a feeding riser to effectively feed the hot joints of the casting.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (9)

1. The integrated dry core is characterized by comprising a dry core main beam, wherein two symmetrical parts are connected to two sides of the dry core main beam, each part comprises a cap mouth dry core part and a cap nest dry core part, the cap mouth dry core part is connected with the dry core main beam through a Y-shaped cap mouth connecting rib, and the cap nest dry core part is connected with the dry core main beam through a T-shaped cap nest connecting rib so as to form two dry core integrated structures; and a dry core beam positioning part is arranged at the connecting end of the Y-shaped cap opening connecting rib and the dry core main beam.

2. The integrated dry core of the vertical line mold for the suspension type iron cap according to claim 1, wherein the centers of the two cap opening dry core parts are positioned on the same horizontal line, cap opening core positioning parts are symmetrically arranged on two sides of the cap opening dry core part, and a connecting line of the two cap opening core positioning parts is perpendicular to a connecting line of the centers of the cap opening dry core parts.

3. The integrated dry core for a vertical line mold of a suspension iron cap according to claim 2, wherein the cross section of the cap head positioning part is elliptical.

4. The integrated dry core for a suspension hat vertical line mold of claim 1, wherein the cross section of the beam positioning portion of the dry core is square.

5. The integrated dry core for the vertical line mould of the suspension type iron cap according to claim 1, wherein a local reinforcing area is arranged at the connecting end of the main beam of the dry core and the connecting rib of the T-shaped cap nest.

6. The integrated dry core of the suspended iron cap vertical line mould according to claim 1, wherein the small end of the cap nest dry core part is connected with the side surface of the dry core girder through a reinforcing rib, and a casting head reserved area is formed among the reinforcing rib, the dry core girder and the T-shaped cap nest connecting rib.

7. A suspended hat vertical line mould core structure comprising an integrated dry core as claimed in any one of claims 1 to 6, the integrated dry core cooperating with a mould to form the core structure.

8. The mold core structure of a vertical line mold for a suspension type iron cap according to claim 7, wherein a cavity matched with the integrated dry core is arranged in the mold, and the Y-shaped cap opening connecting ribs, the T-shaped cap nest connecting ribs and the dry core main beam are in clearance fit with the cavity.

9. The suspended hat vertical line mold core structure of claim 7, wherein the dry core beam positioning portion is in interference fit with the cavity.

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