Double-sided die-casting device

Abstract

The invention relates to the technical field of casting forming equipment, and discloses a double-face die-casting device which comprises an upper die base and a lower die base which can be close to each other or away from each other, a pressurizing base used for die-casting forming is arranged between the upper die base and the lower die base, and a sprue gate facing the pressurizing base is formed in the upper die base. The lower die base is provided with an ejector rod assembly facing the pressurizing base, an upper die core exerting acting force towards the interior of the pressurizing base is arranged in the upper die base, a lower die core exerting acting force towards the interior of the pressurizing base is arranged in the lower die base, and the upper die core and the lower die core are combined to form a pressing die core for die-casting forming of a casting. The upper mold core of the upper mold base and the lower mold core of the lower mold base are far away from each other, so that a casting formed by die-casting is demolded, the casting formed by die-casting stays in the lower mold core, the casting formed by die-casting is prevented from falling off, and the quality of the casting is kept.

Description

Technical Field

[0001] The invention relates to the technical field of casting molding equipment, and in particular to a double-sided die-casting device. Background Art

[0002] Mold refers to various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. When producing aluminum alloy castings, mold forming equipment is often used. The material is injected into the mold and the mold is formed after cooling. However, since the molding is completed by pressing the upper part of the mold on the base where the raw materials are added, the base does not move in this production process, and the molding is completed entirely by the upper part of the mold. The extrusion molding efficiency is low, and bubbles will appear at the corners of the mold when the raw materials are added to the base, which gradually affects the production quality.

[0003] In order to solve the above technical problems, a Chinese patent document (CN219852084U) discloses a double-sided forming mechanism for aluminum alloy castings, including a support frame, a connecting plate is fixedly connected to the upper end of the support frame, a stop block is fixedly connected to the upper end of the connecting plate, a mold shell is slidably connected to the upper end of the connecting plate, a slide groove is provided at the lower end of the mold shell, a docking edge is fixedly connected to the outer side of the mold shell, and a die-casting mechanism for forming aluminum alloy castings is arranged in the mold shell, the die-casting mechanism includes a die-casting plate, an outflow hole is provided on the die-casting plate, a sealing plate is fixedly connected to the mold shell, a propulsion column is fixedly connected to the outer side of the die-casting plate, one end of the propulsion column passes through the sealing plate and is fixedly connected to a propulsion block, and a deflection shaft is fixedly connected to the outer side of the propulsion block.

[0004] Although the above technical solution completes the casting molding by squeezing the symmetrically arranged die-casting plates against each other, in actual application, the formed casting needs the symmetrically arranged die-casting plates to be away from each other when demolding. At this time, since the casting is located between the symmetrically arranged die-casting plates and is in a suspended state, after the casting is cooled, the symmetrically arranged die-casting plates are demolded away from each other, causing the casting to fall from the symmetrically arranged die-casting plates, which can easily cause the casting to be damaged and affect the production quality of the casting. Summary of the invention

[0005] The present invention is intended to provide a double-sided die-casting device, which can solve the technical problem in the prior art that because the casting is located between symmetrically arranged die-casting plates and is in a suspended state, after the casting is cooled, the symmetrically arranged die-casting plates are demolded away from each other, causing the casting to fall from the symmetrically arranged die-casting plates, which can easily cause the casting to be damaged and affect the production quality of the casting.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme:

[0007] 1) A double-sided die-casting device, comprising an upper die seat and a lower die seat that can move toward or away from each other, a pressurizing seat for die-casting molding is provided between the upper die seat and the lower die seat, a pouring port facing the pressurizing seat is provided on the upper die seat, the lower die seat has an ejector rod assembly facing the pressurizing seat, an upper die core for applying a force toward the pressurizing seat is provided in the upper die seat, a lower die core for applying a force toward the pressurizing seat is provided in the lower die seat, the upper die core and the lower die core are combined to form a die core for die-casting of castings.

[0008] The present invention has a simple structure. The upper die seat and the lower die seat are moved closer or farther away from each other, so that the upper die core of the upper die seat and the lower die core of the lower die seat are moved closer to each other for die casting. The upper die core of the upper die seat and the lower die core of the lower die seat are moved away from each other to demold the die-cast casting, thereby achieving the die-cast casting staying in the lower die core, avoiding the die-cast casting from falling, and maintaining the quality of the casting; in addition, during the die-casting process, the die-casting liquid is transported toward the die core through the pouring port of the upper die seat, and the upper die core of the upper die seat and the lower die core of the lower die seat are moved closer to each other to die-cast the die liquid, thereby improving the quality of the casting.

[0009] 2) A double-sided die-casting device according to 1), wherein:

[0010] A servo motor is installed on one side of the pressurizing seat, and the output shaft of the servo motor extends toward the pressurizing seat. The output shaft of the servo motor is coaxially connected to a telescopic rod located in the pressurizing seat. The free end of the telescopic rod is connected to a slider with an arc-shaped structure, and the slider is in contact with the side of the die core. The side of the pressurizing seat is provided with a movable rod for limiting the die core.

[0011] The present invention drives the telescopic rod to extend and retract toward the pressurizing seat through a servo motor, so that the slider at the free end of the telescopic rod cooperates with the movable rods on other sides of the pressurizing seat to fix the die core together and maintain the stability of the die core in the pressurizing seat.

[0012] 3) A double-sided die-casting device according to 2), wherein:

[0013] The die core is provided with a die cavity for die forming, and a pouring pipe is opened upward on the side of the die cavity facing the pouring port, and the pouring pipe is communicated with the die cavity.

[0014] The present invention adopts a pouring pipe extending toward the pouring port, one end of the pouring pipe is connected to the pouring port, and the other end is connected to the die cavity. The die-casting liquid poured through the pouring port enters the die cavity through the pouring pipe, and the die-casting liquid is die-casted through the die cavity, which is simple and convenient to operate.

[0015] 4) A double-sided die-casting device according to 3), wherein:

[0016] The die cavity is provided with a plurality of molding chambers, the inner bottom of each molding chamber is provided with a movable hole for ejection of an ejector rod assembly, and each molding chamber is interconnected to form a molding space for the die-casting liquid to remain.

[0017] The present invention adopts a plurality of mutually connected molding chambers to form a molding space for retaining die-casting liquid. After the die-casting liquid is die-casted in the space, the ejector rod assembly is ejected through the movable hole in each molding chamber, so as to facilitate demoulding of the die-casting casting.

[0018] 5) A double-sided die-casting device according to 4), wherein:

[0019] The ejector rod assembly includes a plurality of ejector rods, the bottoms of all ejector rods are fixed on the lower die base, all ejector rods are arranged at intervals and pass through the lower die core, the positions of all ejector rods correspond to the positions of the movable holes one by one, and the ejector rods pass through the movable holes toward the molding chamber.

[0020] In the demoulding process of the present invention, an ejector rod applies an ejection action to the casting formed by die casting of the die core formed by combining the upper die core and the lower die core, and the molded casting is ejected from the bottom to the top of the mold, which is simple and convenient to operate.

[0021] 6) A double-sided die-casting device according to 4), wherein:

[0022] Each molding cavity includes a concave mold cavity and a convex mold cavity, and the concave mold cavity and the convex mold cavity are die-casted with each other to form the shape of the corresponding casting. The inner surfaces of the concave mold cavity and the convex mold cavity are surrounded by cooling grooves, and coolant flows in the cooling grooves.

[0023] The present invention adopts that each molding cavity is composed of a concave cavity and a convex cavity. By designing the patterns of the concave cavity and the convex cavity, die-casting of double-sided castings of different shapes can be achieved. After the die-casting is completed, coolant is introduced into the cooling tank, and the coolant quickly cools down the castings in the concave cavity and the convex cavity to facilitate rapid demoulding.

[0024] 7) A double-sided die-casting device according to 6), wherein:

[0025] It also includes an overflow groove, the concave mold cavity and the convex mold cavity are respectively connected to the overflow groove, and the end of the overflow groove away from the concave mold cavity or the convex mold cavity is connected to a slag bag groove.

[0026] When the concave mold cavity and the convex mold cavity of the present invention are die-cast, excess die-casting liquid is die-cast and flows toward the overflow groove, and the die-casting liquid in the overflow groove is discharged into the slag ladle groove. The slag ladle groove can accommodate the cold die-casting liquid that first enters the concave mold cavity and the convex mold cavity and the gas and oxidation inclusions mixed therein, which can effectively improve the quality of the casting.

[0027] 8) A double-sided die-casting device according to 1), wherein:

[0028] The side surfaces of the upper die seat and the lower die seat are matched through a push rod sleeve, the push rod is arranged obliquely, the bottom of the push rod is fixed on the lower die seat, and the push rod passes through the pressurizing seat and then passes out of the upper die seat.

[0029] The push rod designed in the present invention has a guiding effect on the mutual movement of the upper mold base and the lower mold base. The push rod is set to be inclined so that the upper mold base can be shifted in its horizontal direction during the movement in the height direction, thereby achieving stable demoulding.

[0030] 9) A double-sided die-casting device according to 8), wherein:

[0031] The side of the upper die seat is connected with an upper connecting rod, and the upper connecting rod is parallel to the telescopic rod. The invention adopts the upper connecting rod to connect with the upper die seat, so it is convenient to take down the upper die seat to replace the die core, and the operation direction is simple.

[0032] 10) A double-sided die-casting device according to 8), wherein:

[0033] The side of the lower die seat is connected with a lower connecting rod, and the lower connecting rod is parallel to the telescopic rod. The invention adopts the lower connecting rod to connect with the lower die seat, so it is convenient to take down the lower die seat to replace the die core, and the operation direction is simple.

[0034] Compared with the prior art, the present invention also has the following technical effects:

[0035] Compared with the prior art, the present invention can simultaneously perform double-sided pressing or casting of a casting in double numbers, and complete the processing of double-sided metal materials at one time, saving time and labor and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of a double-sided die-casting device of the present invention;

[0037] Figure 2 for Figure 1 Sectional view of AA. DETAILED DESCRIPTION

[0038] The following is further described in detail through specific implementation methods:

[0039] The reference numerals in the drawings of the specification include: upper mold base 1, pouring port 2, servo motor 3, pressurizing base 4, lower mold base 5, pouring pipe 6, die core 7, ejector rod 8, push rod 9, upper connecting rod 10, lower connecting rod 11, telescopic rod 12.

[0040] For example, see Figure 1and Figure 2 As shown, a double-sided die-casting device in this embodiment includes an upper die base 1 and a lower die base 5 that can move closer to or away from each other, a pressurizing seat 4 for die-casting is provided between the upper die base 1 and the lower die base 5, a pouring port 2 facing the pressurizing seat 4 is provided on the upper die base 1, the lower die base 5 has an ejector rod 8 assembly facing the pressurizing seat 4, an upper die core for applying a force toward the pressurizing seat 4 is provided in the upper die base 1, a lower die core for applying a force toward the pressurizing seat 4 is provided in the lower die base 5, the upper die core and the lower die core are combined to form a die core 7 for die-casting of castings.

[0041] The present embodiment has a simple structure, and utilizes the upper die base 1 and the lower die base 5 to move closer to or further away from each other, so that the upper die core of the upper die base 1 and the lower die core of the lower die base 5 move closer to each other for die casting, and the upper die core of the upper die base 1 and the lower die core of the lower die base 5 move away from each other to demold the die-cast casting, thereby achieving the die-cast casting staying in the lower die core, avoiding the die-cast casting from falling, and maintaining the quality of the casting; in addition, during the die-casting process, the die-casting liquid is transported toward the die core 7 through the pouring port 2 of the upper die base 1, and the upper die core of the upper die base 1 and the lower die core of the lower die base 5 move closer to each other and the die-casting liquid is die-casted, thereby improving the quality of the casting.

[0042] A servo motor 3 is installed on one side of the pressurizing seat 4, and the output shaft of the servo motor 3 extends toward the pressurizing seat 4. The output shaft of the servo motor 3 is coaxially connected to a telescopic rod 12 located in the pressurizing seat 4. The free end of the telescopic rod 12 is connected to a slider in an arc structure, and the slider is in contact with the side of the die core 7. The side of the pressurizing seat 4 has a movable rod for limiting the die core 7. In this embodiment, the servo motor 3 drives the telescopic rod 12 to extend and retract toward the pressurizing seat 4, so that the slider at the free end of the telescopic rod 12 cooperates with the movable rods on other sides of the pressurizing seat 4 to fix the die core 7 together, and maintain the stability of the die core 7 in the pressurizing seat 4.

[0043] The die core 7 has a die cavity for die forming, and a pouring pipe 6 is opened upward on the side of the die cavity facing the pouring port 2, and the pouring pipe 6 is connected to the die cavity. In this embodiment, a pouring pipe 6 extending toward the pouring port 2 is used, one end of the pouring pipe 6 is connected to the pouring port 2, and the other end is connected to the die cavity. The die-casting liquid poured through the pouring port 2 enters the die cavity through the pouring pipe 6, and the die-casting liquid is die-casted through the die cavity, which is simple and convenient to operate.

[0044] The die cavity has a plurality of molding chambers, and the inner bottom of each molding chamber has a movable hole for the ejector rod 8 assembly to be ejected, and each molding chamber is interconnected to form a molding space for the die-casting liquid to be retained. In this embodiment, a plurality of molding chambers are interconnected to form a molding space for the die-casting liquid to be retained. After the die-casting liquid is die-casted in the space, the ejector rod 8 assembly is ejected through the movable hole in each molding chamber, so as to facilitate demolding of the die-casting casting.

[0045] The ejector rod 8 assembly includes a plurality of ejector rods 8, the bottoms of all ejector rods are fixed on the lower die seat 5, all ejector rods are arranged at intervals and pass through the lower die core, the positions of all ejector rods correspond to the positions of the movable holes, and the ejector rods pass through the movable holes toward the molding chamber. In the demolding process of this embodiment, the ejector rods 8 exert an ejection action on the die core 7 formed by the upper die core and the lower die core, and the molded casting is ejected from the bottom to the top of the mold, which is simple and convenient to operate.

[0046] Each molding cavity includes a concave mold cavity and a convex mold cavity, and the concave mold cavity and the convex mold cavity are die-casted with each other to form the shape of the corresponding casting. The inner surfaces of the concave mold cavity and the convex mold cavity are surrounded by cooling grooves, and coolant flows in the cooling grooves. In this embodiment, each molding cavity is composed of a concave mold cavity and a convex mold cavity. By designing the patterns of the concave mold cavity and the convex mold cavity, die-casting of double-sided castings of different shapes is achieved. After the die-casting is completed, coolant is passed through the cooling groove, and the coolant quickly cools down the castings in the concave mold cavity and the convex mold cavity to facilitate rapid demolding.

[0047] The die casting mold further comprises an overflow groove, the concave mold cavity and the convex mold cavity are respectively connected to the overflow groove, and the end of the overflow groove away from the concave mold cavity or the convex mold cavity is connected to a slag groove. When the concave mold cavity and the convex mold cavity of this embodiment are die-cast, the excess die-casting liquid is die-cast and flows toward the overflow groove, and the die-casting liquid in the overflow groove is discharged into the slag groove. The slag groove can accommodate the cold die-casting liquid that first enters the concave mold cavity and the convex mold cavity and the gas and oxidized inclusions mixed therein, which can effectively improve the quality of the casting.

[0048] In addition, in more detail, the side surfaces of the upper die base 1 and the lower die base 5 are fitted through a push rod 9, the push rod 9 is arranged at an angle, the bottom of the push rod 9 is fixed on the lower die base 5, and the push rod 9 passes through the pressurizing seat 4 and then passes out of the upper die base 1. The push rod 9 designed in this embodiment has a guiding effect on the mutual movement of the upper die base 1 and the lower die base 5. The push rod 9 is arranged at an angle so that the upper die base 1 can be displaced in its horizontal direction during the movement in the height direction, thereby achieving stable demoulding.

[0049] The side of the upper die base 1 is connected with an upper connecting rod 10, and the upper connecting rod 10 is parallel to the telescopic rod 12. In this embodiment, the upper connecting rod 10 is connected to the upper die base 1, which is convenient for removing the upper die base 1 to replace the die core 7, and the operation direction is simple. The side of the lower die base 5 is connected with a lower connecting rod 11, and the lower connecting rod 11 is parallel to the telescopic rod 12. In this embodiment, the lower connecting rod 11 is connected to the lower die base 5, which is convenient for removing the lower die base 5 to replace the die core 7, and the operation direction is simple.

[0050] This embodiment can simultaneously perform double-sided pressing or casting of the casting in double numbers, completing the processing of double-sided metal materials at one time, saving time and labor, and improving the processing efficiency.

[0051] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A double-sided die-casting device, characterized in that: It includes an upper die seat and a lower die seat which can move towards or away from each other, a pressurizing seat for die casting is provided between the upper die seat and the lower die seat, a pouring port facing the pressurizing seat is provided on the upper die seat, the lower die seat has an ejector rod assembly facing the pressurizing seat, an upper die core which applies a force toward the pressurizing seat is provided in the upper die seat, a lower die core which applies a force toward the pressurizing seat is provided in the lower die seat, and the upper die core and the lower die core are combined to form a die core for die casting of castings.

2. A double-sided die-casting device according to claim 1, characterized in that: A servo motor is installed on one side of the pressurizing seat, and the output shaft of the servo motor extends toward the pressurizing seat. The output shaft of the servo motor is coaxially connected to a telescopic rod located in the pressurizing seat. The free end of the telescopic rod is connected to a slider with an arc-shaped structure, and the slider is in contact with the side of the die core. The side of the pressurizing seat is provided with a movable rod for limiting the die core.

3. A double-sided die-casting device according to claim 2, characterized in that: The die core is provided with a die cavity for die forming, and a pouring pipe is opened upward on the side of the die cavity facing the pouring port, and the pouring pipe is communicated with the die cavity.

4. A double-sided die-casting device according to claim 3, characterized in that: The die cavity is provided with a plurality of molding chambers, the inner bottom of each molding chamber is provided with a movable hole for ejection of an ejector rod assembly, and each molding chamber is interconnected to form a molding space for the die-casting liquid to remain.

5. A double-sided die-casting device according to claim 4, characterized in that: The ejector rod assembly includes a plurality of ejector rods, the bottoms of all ejector rods are fixed on the lower die base, all ejector rods are arranged at intervals and pass through the lower die core, the positions of all ejector rods correspond to the positions of the movable holes one by one, and the ejector rods pass through the movable holes toward the molding chamber.

6. A double-sided die-casting device according to claim 4, characterized in that: Each molding cavity includes a concave mold cavity and a convex mold cavity, and the concave mold cavity and the convex mold cavity are die-casted with each other to form the shape of the corresponding casting. The inner surfaces of the concave mold cavity and the convex mold cavity are surrounded by cooling grooves, and coolant flows in the cooling grooves.

7. A double-sided die-casting device according to claim 6, characterized in that: It also includes an overflow groove, the concave mold cavity and the convex mold cavity are respectively connected to the overflow groove, and the end of the overflow groove away from the concave mold cavity or the convex mold cavity is connected to a slag bag groove.

8. A double-sided die-casting device according to claim 1, characterized in that: The side surfaces of the upper die seat and the lower die seat are matched through a push rod sleeve, the push rod is arranged obliquely, the bottom of the push rod is fixed on the lower die seat, and the push rod passes through the pressurizing seat and then passes out of the upper die seat.

9. A double-sided die-casting device according to claim 8, characterized in that: An upper connecting rod is connected to the side surface of the upper die seat, and the upper connecting rod is parallel to the telescopic rod.

10. The double-sided die-casting device according to claim 8, characterized in that: The side surface of the lower die base is connected with a lower connecting rod, and the lower connecting rod is parallel to the telescopic rod.

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