CN219632569U

CN219632569U - Die casting die with prevent ejecting deformation function

Info

Publication number: CN219632569U
Application number: CN202320616129.XU
Authority: CN
Inventors: 李佳
Original assignee: Ningbo Beilun Yuda Mould Manufacturing Co ltd
Current assignee: Ningbo Beilun Yuda Mould Manufacturing Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-09-05
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to the technical field of die casting devices, and provides a die casting die with an ejection deformation preventing function, which comprises: a stationary mold assembly; the movable die assembly is movably arranged below the fixed die assembly; two sliding blocks oppositely arranged on the movable die assembly, which can be abutted against or separated from the movable die assembly, and a product cavity is formed among the sliding blocks, the fixed die assembly and the movable die assembly; the feeding assembly is provided with a split runner which is communicated with the product cavity; the ejection mechanism is provided with an ejector rod, and the upper end of the ejector rod is movably arranged in the shunt channel. Compared with the prior art, the utility model has the advantages that the runner at the lower end of the product cavity is arranged on the movable mould assembly, the ejector rod is arranged in the runner, and the runner is propped against the bottom of the shell to eject the product cavity when the shell is ejected, so that the stress area of the shell is increased when the shell is ejected, and the product can be completely produced through the die-casting mould.

Description

Die casting die with prevent ejecting deformation function

Technical Field

The utility model relates to the technical field of die casting devices, in particular to a die casting die with an ejection deformation preventing function.

Background

The die casting die is a tool for casting metal parts, and is a tool for completing a die casting process on a special die casting machine. The basic technological process of die casting is as follows: the molten metal is cast at a low speed or a high speed and filled into a cavity of a die, the die is provided with a movable cavity surface, the die is pressurized and forged along with the cooling process of the molten metal, so that not only is the shrinkage cavity shrinkage defect of a blank eliminated, but also the internal structure of the blank reaches the forged broken crystal grains, and after a workpiece is shaped in the cavity, the cavity surface is separated, and the workpiece is ejected out of the die-casting die through a push rod in the die-casting die.

In the case of a part of the housing shown in fig. 1, since the wall thickness is thin and openings are formed at both the upper and lower ends and the side walls, the conventional die casting mold is easily deformed by the ejector pins after being formed in the die casting mold during the production of the housing, resulting in the deviation of the size of the housing.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a die casting die with an ejection deformation preventing function aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a die casting die with prevent ejecting deformation function, include: a stationary mold assembly;

the movable die assembly is movably arranged below the fixed die assembly;

the two sliding blocks are oppositely arranged on the movable die assembly and can be abutted against or separated from the movable die assembly, and when the two sliding blocks are abutted against each other and the fixed die assembly is mutually attached to the movable die assembly, a product cavity is formed among the two sliding blocks, the fixed die assembly and the movable die assembly;

the feeding assembly is provided with a sub-runner which is arranged on the movable mould assembly and is positioned at the lower end of the product cavity, and the sub-runner is communicated with the product cavity;

the ejection mechanism is provided with an ejector rod which is movably inserted into the movable die assembly, and the upper end of the ejector rod is movably arranged in the shunt channel;

after the movable die assembly is separated from the fixed die assembly and the two sliding blocks are separated, the ejector rod is used for ejecting a stub bar formed in the sub-runner out of the sub-runner, and ejecting a product in the product cavity out of the product cavity through the stub bar.

The die casting die with the ejection deformation preventing function comprises a fixed die cavity block, wherein the fixed die cavity block is movably arranged above two sliding blocks and used for forming the upper end face of a product cavity, a first material collecting groove is formed in the fixed die cavity block, and the first material collecting groove is communicated with the product cavity.

In the die casting mold with the ejection deformation preventing function, the movable mold cavity block is arranged on the movable mold assembly, the movable mold cavity block is provided with the mold core which is inserted into the product cavity and used for forming the product internal structure, and the upper end of the mold core is provided with the second material collecting groove communicated with the product cavity.

In the die casting mold with the ejection deformation preventing function, a stepped groove formed by cutting off the side wall of the mold core is formed in the side wall of the mold core, the upper end face of the stepped groove and the side wall of the mold core are arranged in an oblique angle, one end, close to the mold core, of the sliding block is provided with a stepped bulge, and the bulge is movably propped against the stepped groove.

In the above-mentioned die casting die with prevent ejecting deformation function, the feed assembly includes:

the feeding sleeve is inserted on the fixed die assembly;

the split cone is arranged on the movable mould assembly and inserted in the feeding sleeve, a main runner is formed between the feeding sleeve and the split cone, and the main runner extends to the upper end face of the movable mould cavity block and is communicated with the split runner.

In the above-mentioned die casting die with prevent ejecting deformation function, ejection mechanism includes:

the ejector rod push plate is movably arranged on the movable die assembly, and the lower end of the ejector rod is propped against the ejector rod push plate;

the ejector rod fixing plate is abutted against the upper end face of the ejector rod pushing plate, and the ejector rod hanging table is connected to the ejector rod fixing plate;

and one end of the guide column penetrates through the ejector rod pushing plate and the ejector rod fixing plate and is connected to the movable die assembly.

Compared with the prior art, the utility model has the advantages that the movable mould component is provided with the sub-runner at the lower end of the product cavity, the ejector rod is arranged in the sub-runner, and the stub bar formed in the sub-runner pushes against the bottom of the product to push the shell out of the product cavity when the shell is pushed out, so that the stress area of the shell during ejection is increased, and the shell can be completely produced through the die-casting mould.

Drawings

FIG. 1 is a perspective view of a housing;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a plan view of the present utility model;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is a perspective view of the stationary mold assembly;

FIG. 6 is a perspective view of the stationary mold assembly omitted from FIG. 2;

FIG. 7 is a perspective view of FIG. 6 with the slider omitted;

fig. 8 is a perspective view of the slider.

In the figure, 1, a fixed die assembly; 2. a movable mold assembly; 3. a slide block; 4. a product cavity; 5. a feed assembly; 6. a sub-runner; 7. an ejection mechanism; 8. a fixed die cavity block; 9. a first collecting trough; 10. a movable mold cavity block; 11. a core; 12. a second collecting trough; 13. a stepped groove; 14. a protrusion; 15. a feeding sleeve; 16. a split cone; 17. a main flow passage; 18. a push rod push plate; 19. a push rod fixing plate; 20. a guide post; 21. and (5) a push rod.

Description of the embodiments

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 8, a die casting mold with an ejection deformation preventing function of the present utility model includes: a stationary mold assembly 1; a movable die assembly 2 movably disposed below the fixed die assembly 1; two slide blocks 3 oppositely arranged on the movable die assembly 2, which can be abutted against or separated from the movable die assembly 2, and when the two slide blocks 3 are abutted against each other and the fixed die assembly 1 and the movable die assembly 2 are mutually attached, a product cavity 4 is formed among the two slide blocks 3, the fixed die assembly 1 and the movable die assembly 2; a feeding assembly 5, which is provided with a diversion channel 6 arranged on the movable mould assembly 2 and positioned at the lower end of the product cavity 4, wherein the diversion channel 6 is communicated with the product cavity 4; the ejection mechanism 7 is provided with an ejector rod 21 movably inserted into the movable die assembly 2, and the upper end of the ejector rod 21 is movably arranged in the shunt 6; after the movable mold assembly 2 is separated from the fixed mold assembly 1 and the two sliding blocks 3 are separated, the ejector rod 21 is used for ejecting the stub bar formed in the split runner 6 out of the split runner 6 and ejecting the product in the product cavity 4 from the product cavity 4 through the stub bar.

During operation, a die casting die is mounted on a die casting machine, a fixed die assembly 1 is mounted on a fixed part of the die casting machine, a movable die assembly 2 is mounted on a driving structure of the die casting machine and drives the movable die assembly 2 to move relative to the fixed die assembly 1 through the driving structure, die opening and die closing actions of the die casting die are further completed, an ejection mechanism 7 is connected with an ejection system on the die casting machine, the ejection mechanism 7 is driven to move on the movable die assembly 2 through the ejection system, a feeding assembly 5 is connected with a material injection system on the die casting machine, after die casting die closing, the material injection system on the die casting machine injects molten metal raw materials into a diversion channel 6, and feeding is carried out along the bottom of a product cavity 4 towards the top direction of the product cavity 4 through the diversion channel 6.

After feeding is completed, the material head is formed at the lower end of the product cavity 4 by the split runner 6, after the shell in the product cavity 4 is primarily cooled, the movable die assembly 2 is driven by the driving structure on the die casting machine to be separated from the fixed die assembly 1, then the two sliding blocks 3 are mutually separated on the movable die assembly 2, the side wall of the shell in the product cavity 4 is completely exposed outside the die casting die, further the friction force born by the shell in the ejection process is reduced, after the two sliding blocks 3 are mutually separated, the ejection system on the die casting machine drives the ejection mechanism 7 to move, and the material head in the ejector rod 21 pushes the split runner 6 to be separated from the split runner 6, and when the shell is ejected, the material head in the split runner 6 is propped against the bottom of the product to eject the product cavity 4, so that the stress area of the product in ejection is increased, and the product can be completely produced through the die casting die is ensured.

Preferably, the movement of the two sliding blocks 3 on the movable mould assembly 2 can be driven by an oil cylinder, namely, the oil cylinders are arranged on two opposite sides of the movable mould assembly 2, the sliding block 3 seats connected with the oil cylinders are arranged on one sides of the two sliding blocks 3 far away from each other, the sliding block 3 seats are connected to the output end of the oil cylinder, and the oil cylinder drives the sliding block 3 seats to move so as to realize the movement of the sliding blocks 3 on the movable mould assembly 2.

Further, the fixed die assembly 1 comprises a fixed die cavity block 8 which is movably arranged above the two sliding blocks 3 and used for forming the upper end face of the product cavity 4, a first material collecting groove 9 is arranged on the fixed die cavity block 8, and the first material collecting groove 9 is communicated with the product cavity 4.

Because the feeding process of the die casting die of this scheme is from the bottom of product die cavity 4 to the top of product die cavity 4, at the in-process that the metal raw materials filled product die cavity 4, the air in the product die cavity 4 also can slowly collect the top of product die cavity 4, if this part of air is detained in product die cavity 4 can make the casing in the product die cavity 4 appear air pocket, shrinkage cavity etc. die casting defect, and the first collecting groove 9 that sets up on the cover half die cavity piece 8 is then used for accomodating this part of air to guarantee the die casting quality of casing.

Further, a movable mold cavity block 10 is arranged on the movable mold assembly 2, a mold core 11 which is inserted into the product cavity 4 and used for forming the internal structure of the product is arranged on the movable mold cavity block 10, and a second material collecting groove 12 communicated with the product cavity 4 is arranged at the upper end of the mold core 11.

The second collecting groove 12 has the same function as the first collecting groove 9 and is also used for collecting gas in the product cavity 4, so that the die casting quality of the shell is ensured.

Further, a step groove 13 formed by cutting off the side wall of the core 11 is formed in the side wall of the core 11, the upper end face of the step groove 13 is arranged at an oblique angle with the side wall of the core 11, a step-shaped protrusion 14 is arranged at one end, close to the core 11, of one of the sliding blocks 3, and the protrusion 14 is movably abutted against the step groove 13.

The step groove 13 and the bulge 14 are arranged for realizing the positioning between the sliding block 3 and the core 11, ensuring the die casting quality of the shell in the product cavity 4, and setting an oblique angle between the upper end surface of the step groove 13 and the side wall of the core 11 for preventing the bulge 14 from striking the area, except the step groove 13, on the side wall of the core 11 when the sliding block 3 is attached to the core 11, so that the core 11 and/or the sliding block 3 are damaged.

Further, the feeding assembly 5 includes: a feeding sleeve 15 inserted on the fixed mold assembly 1; the split cone 16 is arranged on the movable mould assembly 2 and is inserted into the feeding sleeve 15, a main runner 17 is formed between the feeding sleeve 15 and the split cone 16, and the main runner 17 extends to the upper end face of the movable mould cavity block 10 and is communicated with the split runner 6.

The main runner 17 is used for receiving the metal raw material injected by a material injection system on the die casting machine, and the split cone 16 is used for uniformly guiding the metal raw material into the split runner 6.

Further, the ejector mechanism 7 includes: the ejector rod push plate 18 is movably arranged on the movable die assembly 2, and the lower end of the ejector rod 21 is propped against the ejector rod push plate 18; the ejector rod fixing plate 19 is abutted against the upper end surface of the ejector rod push plate 18, and an ejector rod 21 hanging table is connected to the ejector rod fixing plate 19; one end of the guide post 20 passes through the ejector rod pushing plate 18 and the ejector rod fixing plate 19 and is connected to the movable die assembly 2.

The ejector rod push plate 18 is used for being connected with an ejection system on a die casting machine, the ejector rod fixing plate 19 is used for fixing the ejector rod 21 between the ejector rod push plate 18 and the ejector rod fixing plate 19, when the ejector rod push plate 18 is driven to move by the ejection system on the die casting machine, the ejector rod 21 is pushed to move, and then ejection of the die casting die is completed, and the guide post 20 is used for guiding the moving direction of the ejector rod push plate 18 and the ejector rod fixing plate 19, so that the ejector rod 21 is prevented from being broken in the movable die assembly 2.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. Die casting die with prevent ejecting deformation function, characterized by comprising:

a stationary mold assembly;

the movable die assembly is movably arranged below the fixed die assembly;

2. The die casting die with ejection deformation preventing function as claimed in claim 1, wherein the fixed die assembly comprises a fixed die cavity block which is movably arranged above two sliding blocks and used for forming the upper end face of the product cavity, and a first material collecting groove is arranged on the fixed die cavity block and is communicated with the product cavity.

3. The die casting mold with ejection deformation preventing function as claimed in claim 1, wherein a movable mold cavity block is arranged on the movable mold assembly, a core inserted into the product cavity for forming the product internal structure is arranged on the movable mold cavity block, and a second material collecting groove communicated with the product cavity is arranged at the upper end of the core.

4. A die casting die with ejection deformation preventing function as set forth in claim 3, wherein a stepped groove formed by cutting off the side wall of the core is provided on the side wall of the core, the upper end face of the stepped groove is disposed at an oblique angle to the side wall of the core, one end of the slider near the core is provided with a stepped protrusion, and the protrusion is movably abutted against the stepped groove.

5. A die casting mold having an ejection deformation preventing function as claimed in claim 3, wherein said feed assembly comprises:

the feeding sleeve is inserted on the fixed die assembly;

6. The die casting mold with ejection deformation preventing function as claimed in claim 1, wherein the ejection mechanism comprises: