CN217889468U

CN217889468U - Large sprue feeding corrosion-reducing mould structure

Info

Publication number: CN217889468U
Application number: CN202221616882.0U
Authority: CN
Inventors: 张�浩
Original assignee: Suzhou Mattely Automotive Parts Co ltd
Current assignee: Suzhou Mattely Automotive Parts Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-25
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a big runner feeding subtracts and corrodes mould structure, including the die cavity that is used for the shaping die casting, annotate and water, locate to annotate and water terminal runner, the edge butt joint of runner and die cavity, the runner has the difference in height with the chamber end of die cavity, annotate and water including first watering, connect first watering and water the tensile outside second that gradually widens the setting of inner wall and water, the bottom surface and the lateral wall that the second was watered go upward by the export slope of first watering and extend, the end-to-end connection runner that the second was watered, the bottom surface of runner inserts the die cavity for the plane. The utility model discloses an improve the arrangement structure who waters, reduce the erosion effect to the die cavity inner wall, improve die casting outward appearance quality.

Description

Large sprue feeding corrosion-reducing mould structure

Technical Field

The utility model belongs to the technical field of the mould, especially, relate to a big runner feeding corrosion reduction mould structure.

Background

The water pump housing is usually formed by a die-casting mold, and the water pump housing has different shapes and structures according to different functions, so that the position of a sprue in the die-casting mold is selected, and the arrangement position of a slag ladle needs to be considered in many aspects. The prior patent No. CN202022470413.X water pump die-casting die scour prevention structure discloses that the exit position of runner and the edge profile modeling of die cavity match the butt joint. The utility model discloses a reduce runner input speed, prevent runner department erosion, still disclose along a plurality of auxiliary flow ways that each branch runner extends and locate the terminal runner that just docks the die cavity of each auxiliary flow way. A plurality of gates with smaller sizes are arranged in the existing die-casting die and used for connecting a cavity, erosion is reduced by reducing the casting speed, and the forming efficiency of the die is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving above-mentioned technical problem, and provide big runner feeding and subtract and lose mould structure to realize improving the arrangement structure who waters, reduce the erosion effect to the die cavity inner wall, improve die casting outward appearance quality. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

big runner feeding corrosion reduction mould structure, including the die cavity that is used for the shaping die casting, annotate the water, locate the terminal runner of pouring water, the edge butt joint of runner and die cavity, the runner has the difference in height with the chamber bottom of die cavity, the pouring water includes first watering, connects first watering and waters the second that the inner wall stretches outside gradually wide setting and waters, the bottom surface and the lateral wall of second watering are gone upward by the export slope of first watering and are extended, the end-to-end connection runner of second watering, the bottom surface of runner inserts the die cavity for the plane.

Specifically, the die casting comprises a shaft shell with a shaft hole, a cylindrical cavity arranged on the side edge of the shaft shell and a plurality of connecting parts arranged on the circumferential direction of the shaft shell; the bottom of the shaft shell is provided with an inner cavity communicated with the shaft hole, the circumferential direction of the outer end face of the cylindrical cavity is a plane, a connecting cylinder communicated with the bottom face of the cylindrical cavity is arranged inside the cylindrical cavity, the opening of the cylindrical cavity is arranged upwards in an inclined mode, and a connecting hole used for installation is formed in the connecting portion.

Specifically, a positioning table for molding the shaft housing and the inner cavity of the shaft housing is arranged in the cavity, and a positioning column for molding the connecting cylinder is arranged on the side edge of the positioning table.

Specifically, the outside of reference column is equipped with the fixed station, the inside of fixed station is equipped with the half arc portion that is used for the outer wall in shaping cylindrical cavity, the surface of fixed station is equipped with the slope and leans on the face.

Specifically, the cavity is arranged in a lower die core, and a forming block which is abutted against the inclined leaning surface and used for forming the outer end surface of the cylindrical cavity is arranged outside the lower die core.

Specifically, a plurality of first slag ladle grooves connected with the shaft shell are arranged in the circumferential direction of the positioning table.

Specifically, a plurality of groups of second slag ladle grooves connected with the outer end face of the cylindrical cavity are arranged on two sides of the fixed platform.

Specifically, an upper die core corresponding to the die assembly of the lower die core is arranged above the lower die core, and a first fixing piece for forming the shaft hole and a second fixing piece for forming the connecting hole are arranged in the upper die core.

Compared with the prior art, the utility model discloses big runner feeding subtracts beneficial effect of losing mould structure mainly embodies:

the structure of a traditional pouring gate is changed by arranging the first pouring gate, the second pouring gate and the pouring gate, so that the second pouring gate has a gradually-widened channel space, the area of the pouring gate is increased, and the casting efficiency of the cavity is improved; the edge of the bottom surface of the pouring gate, which is connected to the cavity, is a plane, so that when the casting material flows through the second pouring gate, primary buffering is performed from bottom to top and secondary buffering is performed at the position of the pouring gate, the impact force of the casting material on the inner wall of the cavity is reduced, and the service life of the mold is prolonged; set up the fixed station in the lower mould benevolence, the outer wall in the cylindrical cavity that can the shaping die casting cooperates the shaping piece simultaneously and can the shaping its outer terminal surface, has assembleed a plurality of second sediment package grooves of connecting the cylindrical cavity on the fixed station, has improved the appearance quality and the shaping precision in cylindrical cavity.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a lower mold core structure in the present embodiment;

FIG. 3 is a schematic diagram of a lumen structure according to this embodiment;

FIG. 4 is a schematic cross-sectional view of the lower mold core of the present embodiment;

FIG. 5 is a schematic sectional view of a gate of the present embodiment;

FIG. 6 is a schematic front view of the press-cast article of the present embodiment;

FIG. 7 is a schematic view of the bottom structure of the press-cast article in this embodiment;

the figures in the drawings represent:

the casting die comprises a die casting piece 1, an 11-shaft hole, a 12-shaft shell, a 13-cylindrical cavity, a 14-connecting part, a 15-inner cavity, a 16-connecting cylinder, a 17 passageway, an 18-connecting hole, a 2-cavity, a 21-positioning table, a 22-positioning column, a 3-sprue, a 31-first pouring gate, a 32-second pouring gate, a 4-fixing table, a 41-half arc part, a 42-inclined leaning surface, a 5-lower die core, a 51-forming block, a 52-driving piece, a 6-first slag ladle groove, a 61-second slag ladle groove, a 7-first fixing piece and a 71-second fixing piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-7, the present embodiment is a large gate feed erosion reduction die structure for forming a die cast article 1 having a lateral planar opening, in which the die cast article 1 is a water pump housing. The die casting 1 comprises a shaft shell 12 with a shaft hole 11, a cylindrical cavity 13 arranged on the side of the shaft shell 11, and a plurality of connecting parts 14 arranged on the periphery of the shaft shell 12. The bottom of the shaft housing 12 is provided with an inner cavity 15 communicated with the shaft hole 11, the circumference of the outer end surface of the cylindrical cavity 13 is a plane, the inside of the cylindrical cavity 13 is provided with a connecting cylinder 16 communicated to the bottom surface of the cylindrical cavity, the inner end of the cylindrical cavity 13 is positioned outside the connecting cylinder 16 and is provided with a passageway 17 communicated with the inner cavity 15, and the bottom end of the connecting cylinder 16 and the bottom end of the inner cavity 15 are positioned at adjacent positions. The opening of the cylindrical cavity 13 is arranged obliquely upwards. The connecting portion 14 is provided with a connecting hole 18 for mounting.

In order to enable the shaft housing 12 and the cylindrical cavity 13 to be filled with casting materials quickly, the cylindrical cavity 13 is provided with a large plane opening and is located on the side edge of the shaft housing 12, the plane opening of the cylindrical cavity 13 is not easy to be arranged towards the cavity bottom of the cavity, otherwise, the shaft housing is lifted to a high height, and casting molding is not facilitated, so that the casting runner is arranged at the position, close to the cylindrical cavity, of the edge of the shaft housing.

Big runner feeding corrosion reduction mould structure, including the die cavity 2 that is used for shaping die casting 1, the sprue, locate sprue terminal runner 3, the edge butt joint of runner 3 and die cavity 2, sprue 3 has the difference in height with the chamber bottom of die cavity 2, the sprue includes first runner 31, connect first runner 31 and the tensile second that gradually widens the setting outwards of pouring the inner wall, the bottom surface and the lateral wall of second runner 32 are by the ascending extension of the export slope of first runner 31, the end-to-end connection runner 3 of second runner 32, the bottom surface of runner 3 inserts die cavity 2 for the plane.

A positioning table 21 for forming the shaft shell 12 and the inner cavity 15 thereof is arranged in the cavity 2, and a positioning column 22 for forming the connecting cylinder 16 is arranged on the side edge of the positioning table 21. The outside of the positioning column 22 is provided with a fixed table 4, the inside of the fixed table 4 is provided with a semi-arc part 41 for forming the outer wall of the cylindrical cavity 13, and the surface of the fixed table 4 is provided with an inclined leaning surface 42.

The cavity 2 is arranged in the lower die core 5, a molding block 51 which abuts against the inclined leaning surface 42 and is used for molding the outer end surface of the cylindrical cavity 13 is arranged outside the lower die core 5, a driving piece 52 is connected outside the molding block 51, and the driving piece 52 is usually a cylinder.

A plurality of first slag ladle grooves 6 connected with the shaft shell 12 are arranged on the periphery of the positioning table 21. And a plurality of groups of second slag ladle grooves 61 connected with the outer end surface of the cylindrical cavity 13 are arranged on two sides of the fixed platform 4.

An upper mold core (not marked in the figure) corresponding to the mold closing of the lower mold core 5 is arranged above the lower mold core, and a first fixing piece 7 for molding the shaft hole 11 and a second fixing piece 71 for molding the connecting hole 18 are arranged in the upper mold core.

When the embodiment is applied, the structure of the traditional pouring gate is changed by arranging the first pouring gate 31, the second pouring gate 32 and the pouring gate 3, so that the second pouring gate 32 has a gradually-widened channel space, the area of the pouring gate is increased, and the casting efficiency of the cavity is improved; the edge of the bottom surface of the pouring gate 3, which is connected to the cavity 2, is a plane, so that when the casting material flows through the second pouring gate 32, the primary buffering is performed from bottom to top and the secondary buffering is performed at the position of the pouring gate 3, the impact force of the casting material on the inner wall of the cavity 2 is reduced, and the service life of the mold is prolonged; the fixed station is arranged in the lower die core 5, the outer wall of the cylindrical cavity 13 of the die casting 1 can be formed by the fixed station 4, the forming block 51 can form the outer end face of the outer wall of the cylindrical cavity, the plurality of second slag ladle grooves 61 connected with the cylindrical cavity 13 are integrated on the fixed station 4, and the appearance quality and the forming precision of the cylindrical cavity 13 are improved.

In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description of the present specification, the terms "one embodiment," "some embodiments," "specific embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Big runner feeding corrosion reduction mould structure, including the die cavity that is used for the shaping die casting, annotate the water, locate the pouring terminal runner of annotating the water, the edge butt joint of runner and die cavity, its characterized in that: the sprue and the cavity bottom of the cavity have a height difference, the pouring gate comprises a first pouring gate and a second pouring gate which is connected with the first pouring gate and is provided with a stretched outwards gradually-widened inner wall, the bottom surface and the side wall of the second pouring gate are both obliquely and upwards extended from the outlet of the first pouring gate, the tail end of the second pouring gate is connected with the sprue, and the bottom surface of the sprue is connected into the cavity in a plane mode.

2. The large gate feed erosion reduction mold structure of claim 1, wherein: the die casting comprises a shaft shell with a shaft hole, a cylindrical cavity arranged on the side edge of the shaft shell and a plurality of connecting parts arranged on the circumferential direction of the shaft shell; the bottom of the shaft shell is provided with an inner cavity communicated with the shaft hole, the circumferential direction of the outer end face of the cylindrical cavity is a plane, a connecting cylinder communicated with the bottom face of the cylindrical cavity is arranged inside the cylindrical cavity, the opening of the cylindrical cavity is arranged upwards in an inclined mode, and a connecting hole used for installation is formed in the connecting portion.

3. The large gate feed erosion reduction mold structure of claim 2, wherein: the die cavity is internally provided with a positioning table for molding the shaft shell and the inner cavity of the shaft shell, and the side edge of the positioning table is provided with a positioning column for molding the connecting cylinder.

4. The large gate feed erosion reduction mold structure of claim 3, wherein: the positioning column is characterized in that a fixing table is arranged outside the positioning column, a semi-arc portion used for forming the outer wall of the cylindrical cavity is arranged inside the fixing table, and an inclined leaning surface is arranged on the surface of the fixing table.

5. The large gate feed erosion reduction mold structure of claim 4, wherein: the cavity is arranged in the lower die core, and a forming block which is abutted against the inclined leaning surface and is used for forming the outer end surface of the cylindrical cavity is arranged outside the lower die core.

6. The large gate feed erosion reduction mold structure of claim 3, wherein: and a plurality of first slag ladle grooves connected with the shaft shell are formed in the circumferential direction of the positioning table.

7. The large gate feed erosion reduction mold structure of claim 4, wherein: and a plurality of groups of second slag ladle grooves connected with the outer end surface of the cylindrical cavity are arranged on two sides of the fixed platform.

8. The large gate feed erosion reduction mold structure of claim 5, wherein: an upper die core corresponding to the die assembly of the lower die core is arranged above the lower die core, and a first fixing piece for forming the shaft hole and a second fixing piece for forming the connecting hole are arranged in the upper die core.