CN216758111U

CN216758111U - Ejection and internal shrinkage mechanism of die-casting die

Info

Publication number: CN216758111U
Application number: CN202220098688.1U
Authority: CN
Inventors: 胡小海; 单家壮
Original assignee: Dongguan Manke Hardware Products Co ltd
Current assignee: Dongguan Manke Hardware Products Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-17
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses an ejection and retraction mechanism of a die-casting die. According to the die casting die, the movable push plate, the movable press plate and the movable inclined plate are arranged beside the forming cavity, so that the die casting with the inner buckle structure on the side wall can be formed on the die, secondary processing is not needed, the production cost is reduced, and the production efficiency is improved; through setting up the swash plate slope on movable mould benevolence shaping cavity's inboard to set up logical groove and the spout with the swash plate adaptation on movable mould benevolence and thimble board, can be in mould die sinking process with the lateral wall core deviate from smoothly in the lateral wall cavity and ejecting from the shaping cavity with the product, simple structure, the drawing of patterns is smooth and easy, and mould manufacturing cost is lower.

Description

Ejection and internal shrinkage mechanism of die casting die

Technical Field

The utility model relates to the technical field of die-casting dies, in particular to an ejection and retraction mechanism of a die-casting die.

Background

The die-casting die is mainly used for a metal hot-press molding process, the die is used for shaping and pressure-maintaining molding of molten metal, the molding process is simple, the efficiency is high, the quality is stable, and the cost of the die is relatively high, so that in order to reduce the manufacturing and production cost of the die, a fine structure is machined or stamped after hot-press molding in production. However, some die castings with internal buckles, such as metal protection shells on the peripheries of display cards, have good mechanical properties, but internal buckle clamping structures extending outwards on the shells cannot be demoulded by conventional demoulding mechanisms, and due to structural limitation, subsequent processing is difficult to perform by conventional machining methods, and only a stamping die and a special clamping jig can be additionally manufactured for secondary processing, so that the production cost is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides the ejection and retraction mechanism of the die-casting die, which can be used for forming a die-casting piece with an inner buckle structure on the side wall on the die without secondary processing, reduces the production cost, improves the production efficiency, can smoothly eject a side wall mold core from a side wall cavity and eject a product from the forming cavity in the die opening process of the die, and has the advantages of simple structure, smooth demolding and lower die manufacturing cost.

In order to solve the technical problems, the utility model adopts a technical scheme as follows:

a movable die and a fixed die are arranged on the die-casting die, an ejector plate, a movable die plate and a movable die core are arranged on the movable die, a fixed die plate and a fixed die core are arranged on the fixed die, forming cavities are formed on the movable die core and the fixed die core, and the ejector plate is in transmission connection with a driving device and can eject a die-casting piece from the forming cavities; more than one push plate is arranged on the periphery of the molding cavity on the movable die core, a first cavity is formed on one side wall of each push plate, and second cavities connected with the first cavities are formed on the upper walls of the push plates; the die casting die comprises a fixed die core, a die casting die and a second cavity, wherein more than one pressing plate is arranged on the fixed die core, each pressing plate extends along the die opening direction, when the die is closed, the end part of each pressing plate extends into one second cavity, and the pressing plates, the second cavities and the first cavities jointly enclose a side wall cavity matched with a side wall bulge of a die casting; the side of lateral wall cavity is equipped with an swash plate on the movable mould benevolence, be equipped with on the lateral wall of swash plate with the lateral wall core of lateral wall cavity adaptation, a tip of swash plate and the inner wall adaptation of die casting, another tip passes aslope movable mould benevolence and extends to on the thimble board, the swash plate with thimble board with the equal sliding connection of movable mould benevolence, during the die sinking, the swash plate can be relative the movable mould benevolence with the thimble board slides, so that the lateral wall core is kept away from the lateral wall cavity.

As a further elaboration of the above technical solution:

in the technical scheme, more than one first groove which is matched with the push plates one by one is formed in the movable die core; and an inclined through groove matched with the inclined plate is formed in the inner side of the side wall cavity on the movable die core.

In the technical scheme, each push plate is in transmission connection with a sliding plate arranged on the movable mould plate, and each sliding plate can slide on the movable mould plate under the driving of a driving device so as to press the sliding plate on the movable mould core during mould closing.

In the technical scheme, a first clamping piece matched with the fixed die core is arranged on the die assembly surface of each push plate.

In the technical scheme, a second clamping piece matched with the fixed die core is arranged on one side wall of each pressing plate, a first cutting groove matched with the protrusion of the side wall of the die casting is formed in the other side wall of each pressing plate, and a groove matched with the protrusion of the side wall of the die casting is formed in the bottom end of each pressing plate.

In the technical scheme, one end of the inclined plate is provided with a second cutting groove matched with the inner wall of the die casting, and the other end of the inclined plate is provided with an I-shaped clamping groove.

In the above technical scheme, the ejector plate is detachably and fixedly provided with a mounting plate, and the mounting plate is provided with a chute matched with the clamping groove.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the movable push plate, the movable press plate and the movable inclined plate beside the forming cavity, the die casting with the inner buckle structure on the side wall can be formed on the die, secondary processing is not needed, the production cost is reduced, and the production efficiency is improved; through setting up the swash plate with slope on movable mould benevolence shaping cavity's inboard to set up logical groove and the spout with the swash plate adaptation on movable mould benevolence and thimble board, can be in the mould die sinking in-process with the lateral wall core deviate from smoothly in the lateral wall cavity and ejecting the product from the shaping cavity, simple structure, the drawing of patterns is smooth and easy, and mould manufacturing cost is lower.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the movable mold in the present embodiment;

FIG. 3 is a schematic structural view of a push plate in the present embodiment;

FIG. 4 is a schematic structural view of a platen in the present embodiment;

fig. 5 is a schematic structural view of the swash plate and the mounting plate in the present embodiment.

In the figure: 1. moving the template; 2. a movable mould core; 201. a first groove; 202. a through groove; 3. fixing a mold core; 4. forming a cavity; 5. pushing the plate; 6. a first cavity; 7. a second cavity; 8. pressing a plate; 9. a sidewall cavity; 10. a sloping plate; 11. a sidewall core; 12. a slide plate; 13. a first fastener; 14. a second fastener; 15. a first cut groove; 16. a second cut groove; 17. a card slot; 18. mounting a plate; 19. a chute; 20. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a number" or "a plurality" is two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-5, an ejection and retraction mechanism of a die-casting die is provided with a movable die and a fixed die, wherein the movable die is provided with an ejector plate, a movable die plate 1 and a movable die core 2, the fixed die is provided with a fixed die plate and a fixed die core 3, a molding cavity 4 is formed on the movable die core 2 and the fixed die core 3, and the ejector plate is in transmission connection with a driving device and can eject a die-casting piece from the molding cavity 4; more than one push plate 5 is arranged on the periphery of the forming cavity 4 on the movable die core 2, a first cavity 6 is formed on one side wall of each push plate 5, and second cavities 7 connected with the first cavities 6 are formed on the upper walls of a plurality of push plates 5; the cavity block 3 is provided with more than one pressure plate 8, each pressure plate 8 extends along the die opening direction, when the die is closed, the end part of each pressure plate 8 extends into a second cavity 7, and the pressure plate 8, the second cavity 7 and the first cavity 6 together enclose a side wall cavity 9 matched with the side wall bulge of the die casting; the side at lateral wall cavity 9 is equipped with an swash plate 10 on movable mould benevolence 2, be equipped with on the lateral wall of swash plate 10 with the lateral wall core 11 of lateral wall cavity 9 adaptation, a tip and the inner wall adaptation of die casting of swash plate 10, another tip passes movable mould benevolence 2 aslope and extends to on the thimble board, swash plate 10 and thimble board and the equal sliding connection of movable mould benevolence 2, during the die sinking, swash plate 10 can slide relative to movable mould benevolence 2 and thimble board to make lateral wall core 11 keep away from lateral wall cavity 9.

Specifically, the movable die core 2 is provided with more than one first groove 201 which is matched with the push plates 5 one by one; the inner side of the molding cavity 4 of the movable mold core 2 is provided with an inclined through groove 202 matched with the inclined plate 10.

Specifically, each push plate 5 is in transmission connection with a sliding plate 12 arranged on the movable mould plate 1, and each sliding plate 12 can slide on the movable mould plate 1 under the driving of a driving device so as to press the sliding plate 12 against the movable mould core 2 during mould closing.

Specifically, the joint surfaces of the push plates 5 are provided with first clamping pieces 13 matched with the fixed mold core 3.

In this embodiment, the first locking member 13 is a continuous stepped locking groove and a continuous locking protrusion, so that the fixed mold core 3 is matched and locked on the movable mold core 2 when the mold is closed.

Specifically, a side wall of each pressing plate 8 is provided with a second clamping piece 14 matched with the fixed mold core 3, a side wall of each pressing plate 8 is provided with a first cut groove 15 matched with the side wall cavity 9, and the bottom end part of each pressing plate 8 is provided with a groove 20 matched with the second cavity 7.

In this embodiment, the second engaging member 14 is a protruding portion, and the fixed mold core 3 is provided with a engaging slot adapted thereto.

Specifically, one end of the sloping plate 10 is provided with a second notch 16 adapted to the inner wall of the die casting, and the other end is provided with an i-shaped slot 17.

Specifically, the ejector plate is detachably and fixedly provided with an installation plate 18, and the installation plate 18 is provided with a sliding groove 19 matched with the clamping groove 17.

The utility model needs to arrange limit structures on the movable die and the fixed die and can realize the operation on the die-casting die capable of opening the die in stages, otherwise, the die-casting die can be stuck. Mechanisms for realizing staged die opening by the limiting structure are recorded in many documents, and the details are not repeated herein.

When the mold is opened in the first stage, the ejector plate, the movable mold plate 1 and the movable mold core 2 are separated from the fixed mold, the pressing plate 8 clamped on the fixed mold core 3 is removed from the second cavity 7 on the pushing plate 5, meanwhile, the sliding plate 12 slides on the movable mold plate 1 to be far away from the pushing plate 5, the movable mold core 2 and the ejector plate move relatively to drive the movable mold core 2 to push the inclined plate 20 to slide on the mounting plate 18, and the side wall mold core 11 is removed from the side wall cavity 9; when the die is opened in the second stage, the driving device drives the ejector plate to move, the inclined plate 10 is driven to eject relative to the movable die core 2, and the die casting is ejected from the forming cavity 4, so that the die casting is demoulded.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A movable die and a fixed die are arranged on the die-casting die, an ejector plate, a movable die plate and a movable die core are arranged on the movable die, a fixed die plate and a fixed die core are arranged on the fixed die, a molding cavity is formed on the movable die core and the fixed die core, and the ejector plate is in transmission connection with a driving device and can eject a die-casting piece from the molding cavity; the die is characterized in that more than one push plate is arranged on the periphery of the forming cavity on the movable die core, a first cavity is formed on one side wall of each push plate, and second cavities connected with the first cavities are formed on the upper walls of a plurality of push plates; the die casting die comprises a die casting die and a fixed die core, wherein the fixed die core is provided with more than one pressing plate, each pressing plate extends along the die opening direction, the end part of each pressing plate extends into one second cavity during die closing, and the pressing plates, the second cavities and the first cavities jointly enclose a side wall cavity matched with a side wall bulge of a die casting; the side of lateral wall cavity is equipped with an swash plate on the movable mould benevolence, be equipped with on the lateral wall of swash plate with the lateral wall core of lateral wall cavity adaptation, a tip of swash plate and the inner wall adaptation of die casting, another tip passes aslope movable mould benevolence and extends to on the thimble board, the swash plate with thimble board with the equal sliding connection of movable mould benevolence, during the die sinking, the swash plate can be relative the movable mould benevolence with the thimble board slides, so that the lateral wall core is kept away from the lateral wall cavity.

2. The ejection and retraction mechanism of a die-casting die as claimed in claim 1, wherein the movable die core is provided with more than one first groove which is matched with the push plates one by one; and an inclined through groove matched with the inclined plate is formed in the inner side of the side wall cavity on the movable die core.

3. The die-casting die ejecting and retracting mechanism as claimed in claim 1, wherein each of the push plates is in transmission connection with a slide plate provided on the movable die plate, and each of the slide plates is capable of sliding on the movable die plate under the driving of a driving device so as to press the slide plate against the movable die core during die closing.

4. The die-casting die ejecting and retracting mechanism as claimed in claim 1, wherein a first clamping member adapted to the fixed die core is provided on the clamping surface of each of the push plates.

5. The ejection and retraction mechanism of a die casting mold as claimed in claim 1, wherein a second engaging member adapted to the fixed mold core is provided on one side wall of each of the pressing plates, a first cutting groove adapted to a protrusion of a side wall of the die casting is provided on the other side wall, and a recess adapted to a protrusion of a side wall of the die casting is provided on a bottom end portion of each of the pressing plates.

6. The ejection and retraction mechanism of a die casting mold as claimed in claim 1, wherein the inclined plate is provided at one end thereof with a second notch adapted to an inner wall of the die casting and at the other end thereof with an i-shaped notch.

7. The die-casting die ejecting and retracting mechanism as claimed in claim 6, wherein the ejector plate is detachably fixed with a mounting plate, and the mounting plate is provided with a sliding groove adapted to the clamping groove.