CN220361976U

CN220361976U - Die casting die

Info

Publication number: CN220361976U
Application number: CN202321989788.4U
Authority: CN
Inventors: 郑琦
Original assignee: Ningbo Shengwode Machinery Co ltd
Current assignee: Ningbo Shengwode Machinery Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-01-19
Anticipated expiration: 2033-07-27

Abstract

The utility model belongs to the field of dies, and provides a die casting die, which comprises: a stationary mold assembly; the movable die assembly is movably arranged below the fixed die assembly; the molding assemblies are distributed in a cross shape, each molding assembly is movably arranged on the movable die assembly, a molding block is arranged on each molding assembly, and the molding blocks are used for extending into the product cavity; the ejection assembly is movably arranged in the movable die assembly, an ejection disc is arranged at the end part of the ejection assembly, the ejection disc is positioned at the bottom of the product cavity, and the inner wall of the ejection disc is movably abutted against the core. Compared with the prior art, the utility model has the advantages that the ejection disc connected with the ejection assembly is arranged at the bottom of the product cavity, the inner wall of the ejection disc is abutted against the core, so that the workpiece can be demolded when the ejection disc approaches the fixed die assembly along the axis direction of the core, the structure is simple, the bottom stress is uniform when the workpiece is demolded, and the working efficiency is improved.

Description

Die casting die

Technical Field

The utility model belongs to the field of dies, and particularly relates to a die casting die.

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 die forging machine.

The existing die casting mould usually utilizes the ejector rod to carry out die-casting on the workpiece after die-casting of the workpiece is completed, but the mode often causes the workpiece to remain the trace left by die-casting, so that the overall aesthetic property of the workpiece is very influenced, and meanwhile, when aiming at some higher cylindrical workpieces, the ejector rod is utilized to carry out die-casting, the bottom of the workpiece is stressed unevenly, so that the ejector rod is easy to damage and frequent replacement is caused, and the working efficiency is also influenced while the material loss is increased.

Disclosure of Invention

Aiming at the defects existing in the prior art, the technical problems to be solved by the utility model are as follows: the utility model provides a through set up the ejection dish of being connected with ejecting subassembly in the bottom of product die cavity, utilize the inner wall of ejection dish to support tightly on the core, and then can carry out the drawing of patterns with the work piece when making ejection dish be close to the cover half subassembly along core axis direction, simple structure, the bottom atress is even when guaranteeing the work piece drawing of patterns, promotes work efficiency's die casting die.

The utility model solves the technical problems by adopting the technical scheme that a die casting die is provided, which comprises: a stationary mold assembly;

the movable die assembly is movably arranged below the fixed die assembly, and a product cavity is formed between the fixed die assembly and the movable die assembly after the fixed die assembly is attached to the movable die assembly;

the mold core is arranged in the movable mold assembly, and extends into the product cavity to form a required workpiece;

the molding assembly is movably arranged on the movable die assembly, a molding block is arranged on the molding assembly, and the molding block is used for extending into the product cavity;

the ejection assembly is movably arranged in the movable die assembly, an ejection disc is arranged at the end part of the ejection assembly, the ejection disc is positioned at the bottom of the product cavity, and the inner wall of the ejection disc is movably abutted against the core;

when the fixed die assembly is far away from the movable die assembly, the ejection assembly approaches to the direction of the fixed die assembly, so that the ejection disc is used for demolding the molded workpiece along the axis direction of the core.

In the above-mentioned die casting mold, the ejection assembly includes:

a push plate which is positioned at the bottom of the movable mould component;

push rod and push rod fixed plate, the push rod fixed plate is located in the push pedal, the push rod sets up along vertical direction, the one end of push rod sets up in the push rod fixed plate, the other end of push rod is inserted and is established in the liftout dish.

In the die casting die, the movable die assembly is further provided with a core block, a limiting groove is formed in the core block, the ejection disc is located in the limiting groove, and the push rod penetrates through the core block and is inserted into the ejection disc.

In the above-described die casting die, the molding assembly includes:

the movable die assembly is provided with a core fixing plate, the core block is positioned in the core fixing plate, and the driving piece is connected to the side wall of the core fixing plate;

the movable seat is movably arranged on the core fixing plate, the output end of the driving piece is connected with the movable seat, and the forming block is arranged on one side, far away from the driving piece, of the movable seat.

In the die casting die, a guide groove is formed in the bottom of the movable seat, a guide block is arranged on the core fixing plate, and the guide groove is movably clamped on the guide block.

In the die casting die, the core block is further provided with a positioning groove, the forming block is provided with a positioning block, and the positioning block is movably clamped in the positioning groove.

In the die casting mold, the step portion is formed on the ejection plate, the step portion is used for forming the bottom of the workpiece, and the step portion can be used for demolding the formed workpiece when approaching to the fixed mold assembly.

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

(1) According to the die casting die, the ejector assembly is arranged on the movable die assembly, and the formed workpiece finally stays on the core of the movable die assembly, so that the holding force between the workpiece and the core is large, the ejector plate on the ejector assembly is arranged at the bottom of the product cavity, the inner wall of the ejector plate is abutted against the core, after the workpiece is formed, the ejector plate is driven by the ejector assembly to approach the fixed die assembly along the mandrel line of the die core, the formed workpiece can be separated from the core, the demolding task of the workpiece is further completed, the contact area between the ejector plate and the bottom of the formed workpiece is increased by the design of the ejector plate, the stress uniformity in the demolding process of the workpiece is ensured, the stability of the die casting die in operation is improved, and meanwhile, the work efficiency is also improved.

(2) The guide way movable clamping of the bottom of the movable seat is connected to the guide block of the core fixing plate, the lifting driving piece drives the movable seat to move in-process stability, and the positioning block on the forming block is movably clamped in the positioning groove on the core block, so that the forming block can move to an accurate position when approaching to the product cavity every time, and the forming block is prevented from shifting to influence the quality of workpiece forming.

Drawings

FIG. 1 is a view of the mounting structure of a molding assembly on a movable mold assembly;

FIG. 2 is a full cross-sectional view of a die casting mold;

FIG. 3 is a structural view between a guide block and a guide slot;

fig. 4 is an exploded view of the ejector plate, core block and core plate.

In the figure, 1, a workpiece; 2. a stationary mold assembly; 3. a movable mold assembly; 4. a core; 5. a molding assembly; 6. molding blocks; 7. an ejection assembly; 8. ejecting the disc; 9. a push plate; 10. a push rod; 11. a push rod fixing plate; 12. a core block; 13. a limit groove; 14. a step part; 15. a driving member; 16. a core fixing plate; 17. a movable seat; 18. a guide groove; 19. a guide block; 20. a positioning groove; 21. and (5) positioning blocks.

Detailed Description

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 4, the die casting die of the present utility model includes: a stationary mold assembly 2; the movable die assembly 3 is movably arranged below the fixed die assembly 2, and a product cavity is formed between the fixed die assembly 2 and the movable die assembly 3 after the fixed die assembly 2 is attached to the movable die assembly 3; a core 4 provided in the movable mold assembly 3, the core 4 extending into the product cavity for molding the desired workpiece 1; the molding assemblies 5 are distributed in a cross shape, each molding assembly 5 is movably arranged on the movable mold assembly 3, a molding block 6 is arranged on each molding assembly 5, and each molding block 6 is used for extending into the product cavity; the ejection assembly 7 is movably arranged in the movable die assembly 3, an ejection disc 8 is arranged at the end part of the ejection assembly 7, the ejection disc 8 is positioned at the bottom of the product cavity, and the inner wall of the ejection disc 8 is movably abutted against the core 4; when the fixed die assembly 2 is far away from the movable die assembly 3, the ejection assembly 7 approaches to the direction of the fixed die assembly 2, so that the ejection disc 8 is used for demolding the molded workpiece 1 along the axis direction of the core 4.

The problem that produces when the drawing of patterns is carried out to some great cylinder type work piece 1 of height is mainly solved to this scheme, specifically, in the die casting in-process, work piece 1 after the shaping often remains on the core 4 of movable mould subassembly 3 after cover half subassembly 2 and movable mould subassembly 3 are carried out the die sinking, and there is great holding power between work piece 1 and the core 4, make work piece 1 be difficult for carrying out the drawing of patterns, and this scheme is through setting up ejection dish 8 on ejection subassembly 7, ejection dish 8 is located the bottom of product die cavity, and ejection dish 8's inner wall supports tightly on core 4, so after work piece 1 shaping, shaping subassembly 5 can drive shaping piece 6 and keep away from the product die cavity, ejection dish 8 drives ejection dish 8 at this moment and is close to cover half subassembly 2 along core 4 axis direction, as shown in fig. 2 and fig. 4, because ejection dish 8 nature is the annular setting, make ejection dish 8 and work piece 1 bottom's area of contact increase after the shaping, be favorable to work piece 1 drawing of patterns in-process atress even, ejection dish 8 moves in the vertical direction of fig. 2 simultaneously, can guarantee that ejection dish 8 breaks away from work piece 1 from the whole in-process of die casting from the shaping die 1 and stability of this work piece 1.

The ejector assembly 7 comprises: a push plate 9 located at the bottom of the movable module 3; the push rod 10 and the push rod fixed plate 11, push rod fixed plate 11 is located push plate 9, and push rod 10 sets up along vertical direction, and the one end of push rod 10 sets up in push rod fixed plate 11, and the other end of push rod 10 inserts and establishes in ejecting dish 8.

After the workpiece 1 is molded, the outside die casting machine drives the push plate 9 to move upwards along fig. 2, because the push rod fixing plate 11 is positioned on the push plate 9, and one end of the push rod 10 is connected in the push rod fixing plate 11, and the other end is connected with the ejection disc 8, so that the push rod fixing plate 11 can drive the push rod 10 to move upwards along fig. 2 when moving synchronously along with the push plate 9, it is to be noted that the push rod 10 in the scheme is equivalent to the push rod in the mold, unlike the conventional mold design, the required workpiece 1 is difficult to be demolded due to the large height, the ejection disc 8 is connected with the top end of the push rod 10, the contact area between the push rod 10 and the bottom of the workpiece 1 after molding is increased by utilizing the ejection disc 8, the phenomenon that marks are generated at the bottom of the workpiece 1 when the push rod 10 is directly utilized, and the phenomenon that frequent replacement is easy to occur when the push rod 10 is directly ejected is avoided, the aesthetic property of the workpiece 1 is not influenced by the push rod 10, meanwhile, the stability in the demolding process of the workpiece 1 from the mold core 4 is ensured through the ejection disc 8, and the quality is prevented from being damaged.

The movable mould assembly 3 is also provided with a core block 12, a limiting groove 13 is arranged in the core block 12, the ejection disc 8 is positioned in the limiting groove 13, and the push rod 10 penetrates through the core block 12 and is inserted into the ejection disc 8.

As shown in fig. 2 and fig. 4, the ejector plate 8 is located in the limit groove 13, the limit groove 13 is used for limiting the horizontal movement of the ejector plate 8 along the direction of fig. 2, meanwhile, the limit groove 13 also plays a certain guiding role when the ejector plate 8 moves along the vertical direction of fig. 2, so that the inner wall of the ejector plate 8 is always attached to the outer wall of the core 4, and then the workpiece 1 is stably separated from the core 4 in the moving process of the ejector plate 8, the push rod 10 penetrates through the core block 12 and is inserted into the ejector plate 8, the guide role when the core block 12 moves along the vertical direction of fig. 2 is further played by the push rod 10, and the stability of the die casting die when the workpiece 1 is demoulded is ensured.

The ejection plate 8 is formed with a step portion 14, the step portion 14 is used for forming the bottom of the workpiece 1, and the step portion 14 can be used for demolding the formed workpiece 1 when approaching to the fixed die assembly 2.

Further, the step part 14 on the ejection disc 8 is used for forming the bottom of the workpiece 1, namely, the formed bottom of the workpiece 1 is positioned on the step part 14, so that the workpiece 1 is directly separated from the core 4 in the process of upward movement of the ejection disc 8 along the vertical direction of fig. 2, and convenience in the demolding process of the die-casting die is improved.

The molding assembly 5 includes: the driving piece 15, the movable mould assembly 3 is provided with a core fixing plate 16, the core block 12 is positioned in the core fixing plate 16, and the driving piece 15 is connected to the side wall of the core fixing plate 16; the movable seat 17 is movably arranged on the core fixing plate 16, the output end of the driving piece 15 is connected with the movable seat 17, and the forming block 6 is arranged on one side of the movable seat 17 far away from the driving piece 15.

Before the fixed die assembly 2 and the movable die assembly 3 perform die assembly, the driving piece 15 can drive the movable seat 17 to move towards the direction of the product cavity, and finally the forming block 6 stretches into the product cavity, after the fixed die assembly 2 and the movable die assembly 3 are clamped, the required workpiece 1 can be formed by using the forming block 6, the core 4 and the product cavity, and the driving piece 15 is designed to ensure the stability of the forming block 6 in the reciprocating motion process, so that the forming block 6 is prevented from shifting to influence the quality of the workpiece 1.

The bottom of the movable seat 17 is provided with a guide groove 18, the core fixing plate 16 is provided with a guide block 19, and the guide groove 18 is movably clamped on the guide block 19.

Further, by means of the design that the guide groove 18 is movably clamped on the guide block 19, the driving piece 15 drives the movable seat 17 to move along the direction of the guide block 19 all the time in the reciprocating motion process, and further, the forming block 6 is ensured to be located at a required position all the time, and the stability of the die-casting die during operation is improved.

The core block 12 is also provided with a positioning groove 20, the forming block 6 is provided with a positioning block 21, and the positioning block 21 is movably clamped in the positioning groove 20.

Further, as shown in fig. 2, before the fixed die assembly 2 and the movable die assembly 3 are assembled, the driving member 15 drives the movable seat 17 to move towards the direction of the core 4, so that the forming block 6 stretches into the product cavity, and the positioning block 21 formed on the forming block 6 is clamped in the positioning groove 20 on the core block 12, the positioning groove 20 is utilized to limit the continuous movement of the forming block 6 along the direction of the product cavity, so that the distance that the forming block 6 stretches into the product cavity each time is kept consistent, the quality of the workpiece 1 molded by the die-casting die is unified, and the qualification rate of the workpiece 1 is ensured not to be affected.

It should be noted that the driving member 15 may be any other driving device such as hydraulic driving, air cylinder driving, etc.

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.

Claims

1. A die casting die, characterized by comprising:

a stationary mold assembly;

2. A die casting mold as defined in claim 1, wherein said ejector assembly comprises:

a push plate which is positioned at the bottom of the movable mould component;

3. The die casting mold according to claim 2, wherein the movable mold assembly is further provided with a core block, a limit groove is formed in the core block, the ejector plate is located in the limit groove, and the push rod penetrates through the core block and is inserted into the ejector plate.

4. A die casting die according to claim 3, wherein said molding assembly comprises:

5. The die casting die of claim 4, wherein a guide groove is formed in the bottom of the movable seat, a guide block is arranged on the core fixing plate, and the guide groove is movably clamped on the guide block.

6. A die casting die according to claim 3, wherein the core block is further provided with a positioning groove, the forming block is formed with a positioning block, and the positioning block is movably clamped in the positioning groove.

7. The die casting mold according to claim 1, wherein the ejector plate is formed with a stepped portion for molding a bottom portion of the work piece, and the molded work piece is demolded when the stepped portion approaches the stationary mold assembly.