CN219632568U

CN219632568U - Die casting structure

Info

Publication number: CN219632568U
Application number: CN202320515243.3U
Authority: CN
Inventors: 刘奇鑫
Original assignee: Shenzhen Lexin Hardware Co ltd
Current assignee: Shenzhen Lexin Hardware Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-09-05
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a die-casting structure, which relates to the technical field of hardware processing and comprises a base, a lower die arranged at the top of the base, an upper die covered at the top of the lower die, and a forming cavity formed when the lower die and the upper die are clamped. According to the utility model, the formed hardware can be ejected out, so that quick blanking is realized, and the blanking quality is ensured.

Description

Die casting structure

Technical Field

The utility model relates to the technical field of hardware processing, in particular to a die-casting structure.

Background

Die casting is a common technology in the field of hardware processing and forming, and the basic process is as follows: and (3) feeding the liquid metal into a cavity of the die at a lower or higher speed, performing pressurized forging under the action of pressure, and cooling and solidifying the liquid metal to obtain the casting.

The hardware die-casting die is low in die temperature in the production process, so that casting molten metal is solidified prematurely, the die-casting qualification rate is affected, and the die is easy to skew in the die closing and opening processes, so that the product is deformed.

The prior Chinese patent (publication number: CN 214517504U) proposes a hardware die casting die with an improved structure, which comprises a movable die and a fixed die, wherein the movable die is in sliding connection with the fixed die, and a die cavity is formed when the movable die is matched with the fixed die, so that the accuracy of the matching of the fixed die and the movable die is greatly improved, and the success rate of die casting production is improved.

The hardware die casting die has the following defects when in use: when the metal is filled into the forming cavity inside the die through the die, the inner metal is tightly attached to the surface of the die after the casting is finished, and the metal is not easy to remove when the die is discharged after the forming is finished, so that the taking down becomes troublesome, and therefore, the die casting structure is provided for solving the problems.

Disclosure of Invention

The utility model provides a die-casting structure, which solves the technical problems that after casting is finished, the inner metal is tightly attached to the surface of a die, and hardware is not easy to be removed when blanking is finished, so that the removal becomes troublesome.

In order to solve the technical problems, the die-casting structure comprises a base, a lower die arranged at the top of the base, an upper die covered at the top of the lower die, and a forming cavity formed when the lower die and the upper die are combined, wherein a sliding plate is slidably arranged in the base, a trapezoid block is arranged on the sliding plate, a push rod is slidably arranged on the bottom wall of the lower die, the bottom end of the push rod abuts against the inclined surface of the trapezoid block, an electric push rod is arranged in the base, and the telescopic end of the electric push rod is connected with the side wall of the trapezoid block.

Preferably, the bottom of the sliding plate is provided with a sliding block, and the inner bottom wall of the base is provided with a sliding groove for the sliding block to slide.

Preferably, the baffle is installed on the ejector rod, a reset spring is sleeved on the ejector rod, the bottom end of the reset spring is connected with the top surface of the baffle, and the top end of the reset spring is connected with the inner top wall of the base.

Preferably, the top end of the ejector rod is connected with an ejector block, and an accommodating groove for accommodating the ejector block is formed in the inner bottom wall of the lower die.

Preferably, the top of the lower die is provided with a sealing strip, and the bottom surface of the upper die is provided with a groove matched with the sealing strip.

Preferably, the top of the upper die is provided with a pouring gate and exhaust holes, and the exhaust holes are symmetrically arranged on two sides of the pouring gate.

Preferably, the die further comprises a rotating shaft, a knocking head, a swinging arm and an air cylinder, wherein cavities are formed in the front side wall, the rear side wall, the left side wall and the right side wall of the lower die, the rotating shaft is installed in the cavity in a rotating mode, the swinging arm is installed in the rotating shaft, the knocking head is connected onto the swinging arm, the air cylinder is installed on the outer walls of the front side, the rear side, the left side and the right side of the lower die, and the telescopic end of the air cylinder extends into the cavity and is connected with the lower end of the swinging arm.

Preferably, the knocking head is arranged at the upper end of the swing arm, and the knocking head is made of rubber.

Compared with the related art, the die-casting structure provided by the utility model has the following beneficial effects:

according to the utility model, the telescopic end of the electric push rod pushes the trapezoid block to move leftwards, the push rod and the inclined plane of the trapezoid block are matched to displace upwards, so that the hardware formed in the lower die can be ejected out, quick blanking is realized, and blanking quality is ensured.

According to the utility model, the telescopic end of the air cylinder stretches and contracts to move, so that the swing arm can be driven to rotate by taking the rotating shaft as the center, the knocking head continuously hits the inner wall of the cavity, and further resonance is generated on the inner wall of the forming cavity, and therefore, the forming hardware and the forming cavity are separated, the operation is convenient and fast, and the processing efficiency can be effectively improved.

Drawings

FIG. 1 is a schematic diagram of a die-cast structure;

FIG. 2 is a schematic cross-sectional view of a die-cast structure;

FIG. 3 is a schematic view of a die-cast structure of a base plate and a trapezoidal block;

fig. 4 is a schematic diagram of a connection structure between a swing arm and a knocking head in a die-casting structure.

Reference numerals in the drawings: 1. a base; 2. a lower die; 3. an upper die; 4. a molding cavity; 5. a slide plate; 6. a trapezoid block; 7. a push rod; 8. an electric push rod; 9. a slide block; 10. a chute; 11. a baffle; 12. a return spring; 13. a top block; 14. a rotating shaft; 15. a knocking head; 16. swing arms; 17. a cylinder; 18. a sealing strip; 19. a gate; 20. and an exhaust hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

The first embodiment is shown in fig. 1-4, a die casting structure, which comprises a base 1, a lower die 2 arranged at the top of the base 1, an upper die 3 covered at the top of the lower die 2, a forming cavity 4 formed when the lower die 2 and the upper die 3 are assembled, a sliding plate 5 is slidably arranged in the base 1, a sliding block 9 is arranged at the bottom of the sliding plate 5, a sliding groove 10 for sliding the sliding block 9 is arranged on the inner bottom wall of the base 1, a trapezoid block 6 is arranged on the sliding plate 5, a push rod 7 is slidably arranged at the bottom wall of the lower die 2, the bottom end of the push rod 7 is abutted against the inclined surface of the trapezoid block 6, an electric push rod 8 is arranged in the base 1, the telescopic end of the electric push rod 8 is connected with the side wall of the trapezoid block 6, molten metal is poured in the forming cavity 4 in the die casting process, after the molten metal is cooled, the hardware is formed in the forming cavity 4, after the forming is completed, the upper die 3 moves upwards to open the die, after the die is opened, the electric push rod 8 is started, the trapezoidal block 6 is pushed to move leftwards through the telescopic end of the electric push rod 8, the push rod 7 and the inclined plane of the trapezoidal block 6 are matched to displace upwards, so that hardware formed inside the lower die 2 can be ejected out, quick blanking is realized, blanking quality is guaranteed, in order to seal between the lower die 2 and the upper die 3, the sealing strip 18 is arranged at the top of the lower die 2, a groove matched with the sealing strip 18 is arranged at the bottom surface of the upper die 3, when the lower die 2 and the upper die 3 are matched, the sealing strip 18 is extruded into the groove at the bottom surface of the upper die 3, sealing effect is realized, casting metal liquid leakage is avoided, in addition, in order to facilitate casting metal liquid inside the forming cavity 4, a gate 19 and an exhaust hole 20 are symmetrically arranged at the two sides of the gate 19, gas inside the forming cavity 4 is conveniently discharged through the exhaust hole 20, preventing the molding cavity 4 from being hollow due to residual air inside.

In addition, in order to make ejector pin 7 be in the state of tightly supporting with the inclined plane of trapezoidal piece 6 all the time, be convenient for reset ejector pin 7, referring to fig. 2, install baffle 11 on the ejector pin 7, still overlap on the ejector pin 7 and be equipped with reset spring 12, reset spring 12's bottom is connected with baffle 11 top surface, and reset spring 12 top is connected with the interior roof of base 1.

In addition, in order to increase the contact area between the ejector pin 7 and the molding hardware, the top end of the ejector pin 7 is connected with an ejector block 13, and the inner bottom wall of the lower die 2 is provided with a receiving groove for receiving the ejector block 13.

Referring to fig. 1-4, on the basis of the first embodiment, the device further comprises a rotating shaft 14, a knocking head 15, a swinging arm 16 and an air cylinder 17, wherein cavities are formed in the front side, the rear side, the left side and the right side of the lower die 2, the rotating shaft 14 is rotatably arranged in the cavities, the swinging arm 16 is arranged on the rotating shaft 14, the knocking head 15 is connected to the swinging arm 16, the air cylinder 17 is arranged on the outer walls of the front side, the rear side, the left side and the right side of the lower die 2, the telescopic end of the air cylinder 17 extends into the cavities and is connected with the lower end of the swinging arm 16, and the telescopic end of the air cylinder 17 can drive the swinging arm 16 to rotate by taking the rotating shaft 14 as the center so that the knocking head 15 continuously hits the inner wall of the cavities, and further resonance is generated in the inner wall of the forming cavity 4, so that the forming hardware and the forming cavity 4 are separated, the operation is convenient and the processing efficiency can be effectively improved.

In addition, in order to avoid damaging the knocking head 15 due to hard contact with the inner wall of the cavity, the knocking head 15 is arranged at the upper end of the swing arm 16, and the knocking head 15 is made of rubber.

Working principle: when the die casting machine is used, the base 1 is fixed on a fixed seat on the die casting machine, the upper die 3 is fixed on a movable part of the die casting machine, then a pouring runner of the die casting machine is connected with the pouring gate 19, the die casting machine drives the upper die 3 to move downwards, when the upper die 3 and the lower die 2 are assembled, metal liquid enters the forming cavity 4 through the pouring gate 19, after pouring is completed, the die casting machine drives the upper die 3 to move upwards, after the upper die 3 and the lower die 2 are opened, the trapezoidal block 6 is pushed to move leftwards through the telescopic end of the electric push rod 8, the inclined plane of the push rod 7 and the trapezoidal block 6 are matched to displace upwards, and then hardware formed inside the lower die 2 can be ejected out, quick blanking is realized, blanking quality is guaranteed, in the process of opening the die, the telescopic end of the cylinder 17 can be driven to rotate around the rotary shaft 14, so that the knocking head 15 continuously hits the inner wall of the forming cavity 4 to generate resonance, the separation of the forming hardware and the forming cavity 4 are facilitated, operation is convenient, and machining efficiency can be effectively improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a die-casting structure, includes base (1), installs lower mould (2) at base (1) top, lid and closes last mould (3) at lower mould (2) top, lower mould (2) and last mould (3) the shaping chamber (4) that form when the compound die, a serial communication port, the inside slidable mounting of base (1) has slide (5), install trapezoidal piece (6) on slide (5), lower mould (2) diapire slidable mounting has ejector pin (7), ejector pin (7) bottom offsets with trapezoidal piece (6) inclined plane, base (1) internally mounted has electric putter (8), electric putter (8) flexible end is connected with trapezoidal piece (6) lateral wall.

2. A die casting structure according to claim 1, characterized in that the bottom of the slide plate (5) is provided with a slide block (9), and the inner bottom wall of the base (1) is provided with a slide groove (10) for sliding the slide block (9).

3. The die-casting structure according to claim 1, wherein the ejector rod (7) is provided with a baffle plate (11), the ejector rod (7) is further sleeved with a return spring (12), the bottom end of the return spring (12) is connected with the top surface of the baffle plate (11), and the top end of the return spring (12) is connected with the inner top wall of the base (1).

4. A die casting structure according to claim 1, characterized in that the top end of the ejector rod (7) is connected with a top block (13), and the inner bottom wall of the lower die (2) is provided with a receiving groove for receiving the top block (13).

5. A die casting structure according to claim 1, characterized in that the top of the lower die (2) is provided with a sealing strip (18), and the bottom surface of the upper die (3) is provided with a groove adapted to the sealing strip (18).

6. A die casting structure according to claim 1, wherein the top of the upper die (3) is provided with a gate (19) and vent holes (20), and the vent holes (20) are symmetrically arranged on both sides of the gate (19).

7. The die casting structure according to claim 1, further comprising a rotating shaft (14), a knocking head (15), a swing arm (16) and an air cylinder (17), wherein cavities are formed in the front side wall, the rear side wall, the left side wall and the right side wall of the lower die (2), the rotating shaft (14) is installed in the cavity in a rotating mode, the swing arm (16) is installed on the rotating shaft (14), the knocking head (15) is connected to the swing arm (16), the air cylinder (17) is installed in the front side wall, the rear side wall, the left side wall and the right side wall of the lower die (2), and the telescopic end of the air cylinder (17) extends into the cavities and is connected with the lower end of the swing arm (16).

8. The die casting structure according to claim 7, wherein the knocking head (15) is disposed at an upper end of the swing arm (16), and the knocking head (15) is made of rubber.