CN117600441A - Side core-pulling ejection device and method for ultra-large integrated die-casting die - Google Patents

Abstract

The invention discloses a side core-pulling ejection device and method for an oversized integrated die-casting die, which belong to the technical field of die-casting equipment. The sliding component is arranged in the through hole of the movable die in a sliding way, and the thimble penetrates through the sliding component. The telescopic end of the ejection driving member is connected with the ejector plate, and each ejector pin is arranged in the corresponding ejector pin hole in a sliding manner and used for ejecting the die casting. Also discloses a side core-pulling ejection method of the ultra-large integrated die-casting die. The invention provides a side core-pulling ejection device and method for an oversized integrated die casting die, which can adapt to the structural characteristics of an oversized integrated die casting, ensure that the stress in an ejection area of the die casting die is uniform and stable, ensure that core pulling can be stably separated from the die casting die, maintain the structural integrity of the die casting die while maintaining the production efficiency of a die casting machine, and ensure the quality of finished products of the die casting die.

Description

Side core-pulling ejection device and method for ultra-large integrated die-casting die

Technical Field

The invention belongs to the technical field of die casting equipment, and particularly relates to a side core-pulling ejection device and method for an ultra-large integrated die casting die.

Background

In recent years, ultra-large integrated die-cast parts are widely moved in various fields, particularly in large structural members such as a vehicle floor and a front cabin, and a plurality of parts can be integrated into one part by using the ultra-large integrated die-cast parts, so that not only can the manufacturing process be simplified, but also the weight of the die-cast parts can be remarkably reduced. For example, tesla uses an integrated rear floor part on a Model Y body, integrating the original 80 parts into one part, enabling the integrated rear floor part to be reduced in weight by 10% compared to before.

The integrated die casting technology not only provides 6000T-12000T for a die casting machine with larger tonnage, but also promotes innovation of the ultra-large integrated die manufacturing technology. The integrated rear floor and front cabin product has the greatest characteristics of integrating the traditional damping towers and stringers, increasing the difficulty of the die design by times, and the key is that the die experience above 6000T die casting machines has not been developed in the die industry. Particularly, after the tower cover and the longitudinal beam of the rear floor and the front cabin product are combined, the size of the tower cover is larger than that of the traditional damping tower cover, the projection area is larger, and in order to ensure the strength, a plurality of reinforcing ribs are added in design, so that the packing force is increased. The single profiling die can not ensure stable demoulding of the casting tower cover, the phenomenon that the core is not pulled out or the product tower cover is deformed due to the fact that the core is pulled out easily in the process, and the production efficiency of the die casting machine is also affected.

Disclosure of Invention

Aiming at one or more of the defects or improvement demands in the prior art, the invention provides a side core pulling ejection device and method of an oversized integrated die casting die, which can adapt to the structural characteristics of an oversized integrated die casting, ensure uniform and stable stress in an ejection area of the die casting, ensure stable separation of core pulling from the die casting, maintain the structural integrity of the die casting while maintaining the production efficiency of a die casting machine, and further ensure the quality of finished products of the die casting.

In order to achieve the above object, the present invention provides a side core-pulling ejection device of an oversized integrated die-casting die, for ejecting a die-casting piece located in a cavity of a movable die, comprising:

the core pulling mechanism comprises a sliding member and a core pulling driving member;

one end of the core pulling driving member is fixed on the movable die, and the other end of the core pulling driving member is provided with a moving end which is fixedly connected with the sliding member and used for driving the sliding member to reciprocate;

the movable die is provided with a movable die through hole communicated with the cavity, the sliding member is arranged in the movable die through hole in a sliding manner, the sliding member is provided with at least one thimble hole, and the thimble extends along the extending direction of the movable die through hole and penetrates through the sliding member;

the ejection mechanism comprises an ejection driving member, an ejector plate and a plurality of ejector pins arranged on the ejector plate corresponding to the ejector pin holes;

one end of the ejection driving member is fixed, the other end of the ejection driving member is provided with a telescopic end capable of telescopic movement, and the thimble plate is fixed on the telescopic end and used for driving the thimble to reciprocate along the extending direction of the through hole of the movable die;

the ejector pin plates are arranged in the movable die through holes in a sliding mode, and the ejector pins are arranged in the corresponding ejector pin holes in a sliding mode and used for ejecting the die castings from the sliding members towards the end faces of the die cavities.

As a further preferred aspect of the present invention, a core-pulling support is disposed at a side of the movable mold through hole facing away from the cavity, and the movable end of the core-pulling driving member and the ejection driving member are both fixedly mounted on the core-pulling support.

As a further preferred aspect of the present invention, the ejector mechanism further includes at least one connection member, at least one through hole is correspondingly provided on the ejector plate, each connection member passes through the through hole, and both ends of each connection member are respectively fixed on the core pulling bracket and the sliding member.

As a further preferable mode of the invention, at least one accommodating cavity is arranged in the sliding member, a first through hole is arranged on the side wall surface, deviating from the cavity, of the accommodating cavity, the ejector plate is arranged in the accommodating cavity in a sliding mode, and the telescopic end of the ejection driving member penetrates through the first through hole and is fixedly connected with the ejector plate.

As a further preferred aspect of the present invention, at least one fixing piece is provided between the sliding member and the core back holder for fixing connection between the sliding member and the core back holder.

As a further preferred aspect of the present invention, the movable mold through hole is a stepped hole penetrating through a side wall surface of the movable mold, the stepped hole includes a first stepped hole and a second stepped hole, and an inner diameter of the first stepped hole is smaller than an inner diameter of the second stepped hole.

As a further preferred aspect of the present invention, the slide member is slidably disposed in the first step hole, a ring-shaped mold frame is disposed in the second step hole, and the core back driving member is fixed to the mold frame.

As a further preferred aspect of the present invention, at least one mounting groove is provided on the mold frame, and an end portion of the core back driving member facing away from the moving end is fixedly mounted in the mounting groove.

As a further preferred aspect of the present invention, the slide member includes a core-pulling slide and a core-pulling slide, the core-pulling slide is fixed to the core-pulling slide, and a side wall surface of the core-pulling slide is located in the cavity.

The invention also discloses a side core-pulling ejection method of the oversized integrated die-casting die, which is used for ejecting a die casting piece positioned in a movable die cavity, and adopts an ejection driving member, a core-pulling driving member, an ejector plate with an ejector pin and a sliding member, and comprises the following steps:

the movable die moves away from the fixed die until a cavity between the movable die and the fixed die is completely opened;

the core pulling driving member drives the sliding member to move away from the cavity, and the ejection driving member drives the ejector plate to move towards the cavity;

the ejector pin ejects a die casting positioned on the side wall surface of the sliding component;

taking the die casting out of the die cavity;

the core pulling driving member drives the sliding member to move towards the cavity, and the ejection driving member drives the ejector plate to deviate from the cavity to move, so that the sliding member and the ejector pin are reset.

In general, the above technical solutions conceived by the present invention have the beneficial effects compared with the prior art including:

(1) The side core-pulling ejection device of the ultra-large integrated die-casting die comprises a core-pulling mechanism and an ejection mechanism, wherein one end of a core-pulling driving member is fixed on a movable die, and the other end of the core-pulling driving member is fixedly connected with a sliding member. The sliding component is arranged in the movable mould through hole in a sliding way, and the thimble penetrates through the sliding component along the extending direction of the movable mould through hole. The telescopic end of the ejection driving component is fixed with the ejector plate, and each ejector pin is arranged in the corresponding ejector pin hole in a sliding way. The ejection device can adapt to the structural characteristics of the ultra-large integrated die casting, can ensure that the stress in the ejection area of the die casting is uniform and stable, can ensure that core pulling can be realized and the die casting can be stably separated, can maintain the structural integrity of the die casting while maintaining the production efficiency of the die casting machine, and further can ensure the quality of finished products of the die casting.

(2) According to the side core-pulling ejection device and method for the ultra-large integrated die-casting die, through the core-pulling connecting frame arranged on the core-pulling support and the cylinder body support of the core-pulling oil cylinder, the core-pulling oil cylinder can realize synchronous movement between the core-pulling support and the core-pulling oil cylinder in the process of driving the core-pulling telescopic rod to stretch. And a plurality of connecting members arranged between the core-pulling support and the sliding member are combined, so that accurate synchronous movement between the core-pulling slide block and the core-pulling support can be realized, and the core-pulling slide block can provide stable pulling action in the ejection process of the die casting, so that the die casting can be ejected from the core-pulling slide block stably.

(3) The side core-pulling ejection device and the side core-pulling ejection method for the ultra-large integrated die-casting die are simple in structure, convenient to use and stable in core-pulling ejection, and the core-pulling telescopic rod and the core-pulling oil cylinder which are fixed on the die carrier are arranged, and the core-pulling support and the sliding member which are fixed on the core-pulling oil cylinder are combined, so that the sliding member can realize stable reciprocating motion under the driving action of the core-pulling oil cylinder. Meanwhile, through the ejection oil cylinder arranged on the core-pulling support and the ejection telescopic rod connected with the ejector plate, the ejection telescopic rod can drive the ejector pin arranged on the ejector plate to move towards the cavity relative to the sliding component under the action of the ejection oil cylinder, and then the acting force of the core-pulling oil cylinder and the ejection oil cylinder is combined to stably eject the die casting coated on the core-pulling sliding block. And combine and be rectangular array, person's annular array or a plurality of ejector pin holes that set up according to die casting structure on the slide member for the ejecting effort that the ejector pin transmitted can evenly distributed on whole die casting, avoids ejecting effort great die casting deformation that causes in die casting ejecting in-process, has better using value and popularization prospect.

Drawings

FIG. 1 is a schematic diagram of an ejection state structure of a side core-pulling ejection device of an oversized integrated die casting die in an embodiment of the invention;

FIG. 2 is a schematic block diagram of a side core-pulling ejection device of an oversized integrated die casting die in an ejection state in an embodiment of the invention;

fig. 3 is a flowchart of a side core pulling ejection method of an oversized integrated die casting die in an embodiment of the invention.

Like reference numerals denote like technical features throughout the drawings, in particular: 1. a movable mold; 2. core pulling oil cylinder; 3. a core pulling connecting frame; 4. a core-pulling telescopic rod; 5. a mould frame; 6. a core pulling bracket; 7. an ejection cylinder; 8. ejecting the telescopic rod; 9. a connecting member; 10. wedging blocks; 11. a core pulling slide seat; 12. a core-pulling sliding block; 13. a needle ejection plate; 14. and (5) a thimble.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

In the description of the present invention, it should 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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features 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 invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

referring to fig. 1 to 3, the side core-pulling ejection device and method for the ultra-large integrated die casting die in the preferred embodiment of the invention can adapt to the structural characteristics of the ultra-large integrated die casting, ensure uniform and stable stress in the ejection area of the die casting, ensure stable separation of core-pulling from the die casting, maintain the structural integrity of the die casting while maintaining the production efficiency of a die casting machine, and further ensure the quality of finished products of the die casting.

Specifically, in the preferred embodiment of the application, the ejection device comprises a core pulling mechanism and an ejection mechanism, and in overload of ejection of the ultra-large integrated die casting from the die cavity, acting force acting on the die casting can be remarkably improved through simultaneous action of the core pulling mechanism and the ejection mechanism, so that the die casting can be ejected from the die cavity conveniently. The core pulling mechanism comprises a sliding member and a core pulling driving member. One end of the core-pulling driving member is fixed on the movable die 1, and the other end of the core-pulling driving member is provided with a moving end which is fixedly connected with the core-pulling sliding block 12 and used for driving the sliding member to reciprocate. Correspondingly, a through hole of the movable mould 1 communicated with the cavity is formed in the movable mould 1, and the sliding member is arranged in the through hole of the movable mould 1 in a sliding manner, so that the side wall surface of the sliding member can be positioned in the cavity, and in the casting die-casting process, the through hole of the movable mould 1 can be blocked through the sliding member, so that a complete cavity suitable for die casting molding is formed. And, be provided with at least one thimble 14 hole on this sliding member, each thimble 14 hole all extends along movable mould 1 through-hole extending direction, and then runs through whole sliding member to the thimble 14 is ejecting the die casting.

The ejection mechanism comprises an ejection component, an ejector plate 13 and a plurality of ejector pins 14 which are arranged on the ejector plate 13 corresponding to the ejector pin 14 holes. One end of the ejection driving member is fixed, the other end of the ejection driving member is provided with a telescopic end capable of telescopic movement, and the ejector plate 13 is fixedly arranged on the telescopic end, so that the ejector plate 13 can drive the ejector pins 14 arranged on the ejector plate 13 to reciprocate along the extending direction of the through hole of the movable die 1 under the action of the ejection driving member. Moreover, the ejector plate 13 is slidably arranged in the through hole of the movable die 1, and each ejector pin 14 is slidably arranged in the corresponding ejector pin 14 hole, so that when the ejector plate 13 reciprocates in the through hole of the movable die 1, the ejector pins 14 in the ejector pin 14 holes can be driven to reciprocate, and then the ejector pins 14 can eject die castings on the side wall surfaces of the sliding members. Namely, in the ejection process of the die casting, the core pulling driving member drives the sliding member to move away from the cavity, correspondingly, the ejection driving member drives the ejector pins 14 to move towards the cavity, and the ejector pins 14 can be combined with the acting forces of the core pulling driving member and the ejection driving member to abut against the die casting positioned on the side wall surface of the sliding member and eject the die casting from the cavity.

Further, in the preferred embodiment of the present application, a core back support 6 is disposed at a side of the through hole of the movable mold 1 facing away from the cavity, and the movable end of the core back driving member and the ejection driving member are fixedly mounted on the core back support 6. Preferably, the core pulling support 6 is fixedly connected with the sliding member, so that the core pulling driving member can drive the sliding member to reciprocate in the through hole of the movable die 1 in the process of driving the core pulling support 6 to move.

Further preferably, in another preferred embodiment of the present application, the ejector driving member may also be directly fixed to the mounting frame provided outside the movable mold 1, and the telescopic end of the ejector driving member may also extend directly along the extending direction of the through hole of the movable mold 1 until the telescopic end is fixedly connected to the ejector plate 13.

Further, in the preferred embodiment of the present application, the ejection mechanism further comprises at least one connecting member 9, and correspondingly, at least one via hole is provided on the ejector plate 13. Preferably, the through holes extend along the extending direction of the through holes of the movable die 1 and penetrate through two opposite side wall surfaces of the ejector plate 13. In the actual use process, each connecting member 9 correspondingly passes through each through hole, and the two ends of each connecting member 9 are respectively fixedly connected to the core pulling support 6 and the sliding member, so that the ejector driving member can drive the core pulling support 6 to reciprocate in the process of reciprocating motion, and the sliding member can reciprocate in the through hole of the movable mould 1 along with the telescopic end of the ejector driving member through the fixed connection between the core pulling support 6 and the sliding member.

Further preferably, in the preferred embodiment of the present application, the connecting members 9 are uniformly arranged in a rectangular array or annular array between the core back support 6 and the sliding members, and accordingly, a plurality of through holes are uniformly arranged in a rectangular array or annular array on the thimble plates 13 as well, so as to facilitate the construction of stable load transmission between the core back support 6 and the sliding members.

In more detail, in the preferred embodiment of the present application, the connection member 9 is a double-threaded connection assembly or a single-threaded connection assembly penetrating the core back holder 6, so as to achieve a stable connection between the core back holder 6 and the sliding member.

Of course, the connection between the core-pulling support 6 and the sliding member is not limited to the above-mentioned structure, but in another preferred embodiment of the present application, at least one housing cavity is provided in the sliding member, preferably one housing cavity is provided in the sliding member. And, the ejector plate 13 is slidably disposed in the accommodating chamber such that the ejector plate 13 is reciprocatingly movable in the accommodating chamber in the extending direction of the through hole of the movable die 1. Correspondingly, in order to ensure that the ejector plate 13 can reciprocate under the action of the ejector driving member, at least one first through hole is formed in the sliding member, the first through hole penetrates through the side wall surface of the sliding member, one end of the first through hole is communicated with the accommodating cavity, and the other end of the first through hole is communicated with the side wall surface of the sliding member, which is away from the cavity, so that the telescopic end of the ejector driving member can penetrate through the first through hole to be fixedly connected with the ejector plate 13. It is further preferred that one end of the hole of the ejector pin 14 is located on a side wall surface of the slide member facing the cavity, and the other end of the hole of the ejector pin 14 communicates with a side wall surface of the accommodating cavity facing the cavity, so that the ejector pin 14 provided in the accommodating cavity with the ejector plate 13 can pass through the hole of the ejector pin 14 located on an inner wall surface of the accommodating cavity. It is further preferable that at least one fixing piece for fixing the core back holder 6 and the slide member as one body is provided between the core back holder 6 and the slide member.

Further, in the preferred embodiment of the present application, two ejector driving members are provided on the core back holder 6, and preferably, the two ejector members are symmetrically provided on the core back holder 6 to achieve stable driving of the core back holder 6.

More specifically, in the preferred embodiment of the present application, the ejection driving member includes an ejection cylinder 7 and an ejection telescopic rod 8, preferably, the ejection cylinder 7 is fixedly mounted on a side wall surface of the core-pulling bracket 6 facing away from the cavity, and correspondingly, an ejection through hole is provided on the core-pulling bracket 6 corresponding to the ejection cylinder 7, and the ejection telescopic rod 8 is fixedly connected with the ejector plate 13 after passing through the ejection through hole. In the actual use process, the ejection oil cylinder 7 drives the ejection telescopic rod 8 to reciprocate in the ejection through hole, and then drives the ejector pin plate 13 arranged at the end part of the ejection telescopic rod 8 to reciprocate in the through hole of the movable die 1. Preferably, a plurality of mounting bolt assemblies are arranged around the cylinder of the ejection cylinder 7, so that the ejection cylinder 7 can be detachably and stably mounted on the ejector pin 14 support, and the ejection cylinder 7 can stably drive the ejection telescopic rod 8 to move and simultaneously the ejection cylinder 7 can be conveniently detached.

Further, in the preferred embodiment of the present application, the core-pulling driving member includes the core-pulling cylinder 2 and the core-pulling telescopic rod 4, wherein one end of the core-pulling telescopic rod 4 is fixedly mounted on the movable mold 1, and the core-pulling cylinder 2 is disposed on the end of the core-pulling telescopic rod 4 facing away from the movable mold 1, and becomes the moving end of the core-pulling driving member. Correspondingly, the shell of the core-pulling oil cylinder 2 is fixedly connected with the core-pulling support 6, so that when the core-pulling oil cylinder 2 drives the core-pulling telescopic rod 4 to move, the shell of the core-pulling oil cylinder 2 can be driven to reciprocate relative to the core-pulling telescopic rod 4, and the core-pulling support 6 connected to the core-pulling shell can also be driven to reciprocate along the extending direction of the through hole of the movable die 1. In addition, the core-pulling oil cylinder 2 is arranged on one side of the core-pulling support 6, which is away from the cavity, so that the disassembly and replacement of the core-pulling oil cylinder 2 can be conveniently completed when the core-pulling oil cylinder 2 fails. Preferably, at least one core-pulling through hole is formed in the core-pulling support 6 corresponding to the core-pulling telescopic rod 4, so that the core-pulling telescopic rod 4 can pass through the core-pulling through hole, and two ends of the core-pulling telescopic rod 4 are respectively connected with the core-pulling oil cylinder 2 and the movable die 1. Further preferably, the core-pulling through hole is in clearance fit with the core-pulling telescopic rod 4, and correspondingly, the ejection telescopic rod 8 is in clearance fit with the ejection through hole, so that the core-pulling telescopic rod 4 and the ejection telescopic rod 8 can reciprocate relative to the core-pulling support 6, and stable guiding of the movement direction of the core-pulling support 6 in the reciprocating movement process along the extending direction of the through hole of the movable die 1 can be realized.

Further preferably, in the preferred embodiment of the present application, at least one core-pulling connecting frame 3 is disposed on a cylinder body of the core-pulling cylinder 2, the core-pulling connecting frame 3 includes at least one pillar extending along an extending direction of a through hole of the movable mold 1, and two ends of each pillar are respectively fixed on the cylinder body of the core-pulling cylinder 2 and the core-pulling bracket 6, so as to achieve stable connection between the cylinder body of the core-pulling cylinder 2 and the core-pulling bracket 6. Preferably, a core-pulling connecting frame 3 is arranged on the cylinder body, and correspondingly, the core-pulling connecting frame 3 comprises supporting columns corresponding to four corners of the core-pulling oil cylinder 2.

Further, in another preferred embodiment of the present application, the core-pulling cylinder 2 is fixedly mounted on the movable mold 1, and correspondingly, the core-pulling telescopic rod 4 extends along the extending direction of the through hole of the movable mold 1 and is fixedly connected with the core-pulling support 6, so that the core-pulling support 6 can reciprocate along the extending direction of the through hole of the movable mold 1 under the driving of the core-pulling telescopic rod 4.

Further, in the preferred embodiment of the present application, the through hole of the movable mold 1 formed on the movable mold 1 is a stepped hole, and the stepped hole includes a first stepped hole and a second stepped hole, where the first stepped hole is used for accommodating the sliding member, and correspondingly, the second stepped hole is used for installing the core pulling driving member. Preferably, the inner diameter of the first stepped bore is smaller than the inner diameter of the second stepped bore.

Further preferably, in the preferred embodiment of the present application, the mold frame 4 is correspondingly disposed in the groove body formed by the second stepped hole, and preferably, the mold frame 4 has a ring structure and is fixedly mounted on the movable mold 1. Preferably, at least one mounting groove is provided on the mold frame 4, and the end of the core back driving member facing away from the moving end is fixedly mounted in the mounting groove, i.e. the end of the core back expansion link 4 is fixedly mounted in the mounting groove.

More specifically, in the preferred embodiment of the present application, a wedging block 10 having a ring shape is provided on the annular inner wall surface of the mold frame 4 so that the mold frame 4 can be stably fixed to the movable mold 1 by the wedging block 10. Preferably, the inner ring size of the annular wedging block 10 is the same as the inner diameter of the first step hole, so that the inner wall surface of the first step hole can form a complete communication surface by combining with the inner wall surface of the wedging block 10, and the sliding member and the thimble plate 13 can conveniently reciprocate on the communication surface.

Further, in the preferred embodiment of the present application, the sliding member includes a core-pulling slide 11 and a core-pulling slide 12, the core-pulling slide 11 is disposed in the first step hole, an end of the core-pulling slide 11 facing away from the cavity is fixedly connected with the core-pulling support 6, and an end of the core-pulling slide 11 facing toward the cavity is detachably connected with the core-pulling slide 12. Correspondingly, the side wall surface of the core-pulling sliding block 12, which is away from the core-pulling sliding block 12, is a part molding surface for molding the cavity. In the process of die casting of different die castings, the core-pulling slide blocks 12 can be replaced to form die casting cavities of the corresponding die castings.

Further preferably, in the preferred embodiment of the present application, the ejector pin 14 holes are arranged in the core-pulling slide 11 and the core-pulling slide 12 along a rectangular array or a ring array, and of course, a plurality of ejector pin 14 holes may be correspondingly arranged at a position where the reinforcing ribs are arranged, for example, according to the structure of the die casting, so that the ejector pins 14 can uniformly apply the ejection force to the die casting.

Further, as shown in fig. 3, in another preferred embodiment of the present application, there is also disclosed a side-pulling ejection method of an ultra-large integrated die casting mold, which employs an ejection driving member, a core-pulling driving member, an ejector plate 13 with ejector pins 14, and a sliding member for ejecting a die cast piece located in a cavity of a movable mold 1, the ejection method comprising the steps of:

the movable mould 1 moves away from the fixed mould until a cavity between the movable mould 1 and the fixed mould is completely opened;

the core pulling driving member drives the sliding member to move away from the cavity, and the ejection driving member drives the ejector plate 13 to move towards the cavity;

ejector pins 14 eject the die casting located on the side wall surface of the sliding member;

taking out the die casting from the die cavity;

the core pulling driving member drives the sliding member to move towards the cavity, and the ejection driving member drives the ejector plate 13 to move away from the cavity, so that the sliding member and the ejector pins 14 are reset.

Preferably, when the cavity between the movable mold 1 and the fixed mold is completely opened, a control signal is generated, and the control signal is sent to the core-pulling driving member and the ejection driving member for controlling the stop and start of the core-pulling driving member and the ejection driving member.

The side core-pulling ejection device and the side core-pulling ejection method for the ultra-large integrated die-casting die are simple in structure, convenient to use and stable in core-pulling ejection, and the core-pulling support 6 and the sliding member fixed on the core-pulling oil cylinder 2 are combined through the core-pulling telescopic rod 4 and the core-pulling oil cylinder 2 fixed on the die carrier 4, so that the sliding member can realize stable reciprocating motion under the driving action of the core-pulling oil cylinder 2. Meanwhile, through the ejection oil cylinder 7 arranged on the core-pulling support 6 and the ejection telescopic rod 8 connected with the ejector plate 13, the ejection telescopic rod 8 can drive the ejector pins 14 arranged on the ejector plate 13 to move towards the cavity relative to the sliding member under the action of the ejection oil cylinder 7, and then the die castings coated on the core-pulling sliding blocks 12 are stably ejected by combining the acting forces of the core-pulling oil cylinder 2 and the ejection oil cylinder 7. And combine and be rectangular array, person's annular array or a plurality of thimble 14 holes that set up according to die casting structure on the slide member for the ejecting effort that thimble 14 transmitted can evenly distributed on whole die casting, avoids ejecting effort great die casting deformation that causes in die casting ejecting in-process, has better using value and popularization prospect.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (10)

1. The utility model provides a side knockout ejecting device of oversized integration die casting die for will be located the die casting in the movable mould die cavity ejecting, its characterized in that includes:

the core pulling mechanism comprises a sliding member and a core pulling driving member;

one end of the core pulling driving member is fixed on the movable die, and the other end of the core pulling driving member is provided with a moving end which is fixedly connected with the sliding member and used for driving the sliding member to reciprocate;

the movable die is provided with a movable die through hole communicated with the cavity, the sliding member is arranged in the movable die through hole in a sliding manner, the sliding member is provided with at least one thimble hole, and the thimble extends along the extending direction of the movable die through hole and penetrates through the sliding member;

the ejection mechanism comprises an ejection driving member, an ejector plate and a plurality of ejector pins arranged on the ejector plate corresponding to the ejector pin holes;

one end of the ejection driving member is fixed, the other end of the ejection driving member is provided with a telescopic end capable of telescopic movement, and the thimble plate is fixed on the telescopic end and used for driving the thimble to reciprocate along the extending direction of the through hole of the movable die;

the ejector pin plates are arranged in the movable die through holes in a sliding mode, and the ejector pins are arranged in the corresponding ejector pin holes in a sliding mode and used for ejecting the die castings from the sliding members towards the end faces of the die cavities.

2. The side core-pulling ejection device of the ultra-large integrated die casting die according to claim 1, wherein a core-pulling support is arranged on one side of the movable die through hole, which is away from the die cavity, and the moving end of the core-pulling driving member and the ejection driving member are fixedly mounted on the core-pulling support.

3. The side-pulling ejection device of the ultra-large integrated die casting die according to claim 2, wherein the ejection mechanism further comprises at least one connecting member, at least one through hole is correspondingly formed in the ejector plate, each connecting member penetrates through the through hole, and two ends of each connecting member are respectively fixed on the core pulling support and the sliding member.

4. The side core-pulling ejection device of the ultra-large integrated die casting die according to claim 2, wherein at least one accommodating cavity is arranged in the sliding member, a first through hole is formed in a side wall surface, away from the cavity, of the accommodating cavity, the ejector plate is arranged in the accommodating cavity in a sliding mode, and a telescopic end of the ejection driving member penetrates through the first through hole and is fixedly connected with the ejector plate.

5. The side-pulling ejection device of an oversized integrated die-casting die according to claim 4, wherein at least one fixing piece is provided between the sliding member and the core-pulling bracket for fixed connection between the sliding member and the core-pulling bracket.

6. The side core-pulling ejection device of the ultra-large integrated die casting die according to any one of claims 1 to 5, wherein the movable die through hole is a stepped hole penetrating through a side wall surface of the movable die, the stepped hole comprises a first stepped hole and a second stepped hole, and an inner diameter of the first stepped hole is smaller than an inner diameter of the second stepped hole.

7. The side core-pulling ejection device of the oversized integrated die-casting die according to claim 6, wherein the sliding member is slidably arranged in the first step hole, a ring-shaped die carrier is arranged in the second step hole, and the core-pulling driving member is fixed on the die carrier.

8. The side core-pulling ejection device of an oversized integrated die-casting die according to claim 7, wherein at least one mounting groove is arranged on the die carrier, and the end part of the core-pulling driving member, which is away from the moving end, is fixedly mounted in the mounting groove.

9. The side core-pulling ejection device of the oversized integrated die-casting die according to any one of claims 1 to 5, 7 and 8, wherein the sliding member comprises a core-pulling slide seat and a core-pulling slide block, the core-pulling slide block is fixed on the core-pulling slide seat, and a side wall surface of the core-pulling slide block is located in the cavity.

10. The side core-pulling ejection method of the ultra-large integrated die-casting die is used for ejecting a die casting piece in a movable die cavity and is characterized by adopting an ejection driving member, a core-pulling driving member, an ejector plate with an ejector pin and a sliding member, and comprises the following steps of:

the movable die moves away from the fixed die until a cavity between the movable die and the fixed die is completely opened;

the core pulling driving member drives the sliding member to move away from the cavity, and the ejection driving member drives the ejector plate to move towards the cavity;

the ejector pin ejects a die casting positioned on the side wall surface of the sliding component;

taking the die casting out of the die cavity;

the core pulling driving member drives the sliding member to move towards the cavity, and the ejection driving member drives the ejector plate to deviate from the cavity to move, so that the sliding member and the ejector pin are reset.