An automatic ejection structure for a die casting mold

Abstract

This utility model belongs to the field of die-casting mold technology and discloses an automatic ejection structure for die-casting molds. It includes a mounting base, a fixed mold movably connected to the top of the mounting base, a dual-axis motor fixedly connected to the bottom of the inner cavity of the mounting base, a rotating shaft fixedly sleeved at the other end of the output shaft of the dual-axis motor, a rotating rod fixedly sleeved on the outer surface of the rotating shaft, and a round shaft fixedly connected to the inner side of the other end of the rotating rod. This utility model, by setting up a dual-axis motor, rotating shaft, rotating rod, round shaft, and T-shaped plates, allows the two rotating shafts to drive the two rotating rods to rotate when the dual-axis motor is running. This, in turn, causes the two round shafts to rotate, driving the two T-shaped plates to move upwards. Consequently, the mounting plate drives the ejector pins upwards, automatically ejecting the die-casting part. This solves the problems of low efficiency and easy damage associated with manual ejection of die-casting parts, and improves the production quality of die-casting parts.

Description

Technical Field

[0001] This utility model belongs to the field of die casting mold technology, specifically an automatic ejection structure for die casting molds. Background Technology

[0002] Die casting molds are designed and manufactured according to the shape and size of the parts. They consist of two parts: a fixed mold and a moving mold. The fixed mold is fixed on the fixed mold mounting plate of the die casting machine, and the moving mold is mounted on the moving mold mounting plate of the die casting machine. The moving mold and the fixed mold are closed by the mold closing mechanism of the die casting machine to form a cavity with the same shape as the part. Then, liquid or semi-liquid metal material is injected into the cavity at high pressure and high speed. Under pressure, it cools and solidifies to form the part. Finally, the mold is opened and the formed part is taken out.

[0003] In the die casting production process, once the die casting mold has completed the die casting, the formed die casting needs to be ejected from the mold. For this purpose, an ejection structure is usually used. However, although the existing ejection structure can complete the ejection task of the die casting in practical applications, the ejection structure of some die casting molds still requires manual operation. This is not only inefficient, but also prone to damage to the die casting due to human error. Therefore, it is urgent to improve these ejection structures. Utility Model Content

[0004] The purpose of this invention is to address the above problems by providing an automatic ejection structure for a die-casting mold, which has the advantage of automatic ejection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic ejection structure for a die-casting mold, comprising a mounting base, a fixed mold movably connected to the top of the mounting base, a dual-axis motor fixedly connected to the bottom of the inner cavity of the mounting base, a rotating shaft fixedly sleeved on the output shaft of the dual-axis motor, one end of a rotating rod fixedly sleeved on the outer surface of the rotating shaft, a round shaft fixedly connected to the other end of the rotating rod, a T-shaped plate connected to the round shaft, the T-shaped plate being vertically adjustable and having a horizontally formed slotted hole, the round shaft being slidably connected to the slotted hole, a mounting plate connected to the top of the T-shaped plate, an ejector pin fixedly connected to the top of the mounting plate, the top of the ejector pin penetrating into the interior of the fixed mold.

[0006] In a preferred embodiment of this utility model, the number of ejector pins is twenty, and the twenty ejector pins are evenly distributed on the mounting plate.

[0007] As a preferred embodiment of this utility model, the fixed mold is threaded with a second threaded rod around its perimeter, and the bottom of the second threaded rod extends into the interior of the mounting base and is threaded therewith.

[0008] As a preferred embodiment of this utility model, limiting grooves are provided on both sides of the inner cavity of the mounting base, and the inner surface of the limiting grooves is slidably connected to the outer surface of the T-shaped plate.

[0009] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the outer sides of both T-shaped plates. A first threaded rod is threadedly connected to the fixing plate, and a lifting plate is rotatably connected to the top of the first threaded rod. The inner side of the lifting plate is slidably connected to the outer side of the T-shaped plate. Connecting rods are hinged to both sides of the top of the lifting plate, and a movable plate is hinged to the other end of the connecting rod. The movable plate is movably mounted on the T-shaped plate and the mounting plate. A pin is fixedly connected to the outer side of the movable plate, and an insertion hole is provided on the mounting plate, through which the pin can be inserted.

[0010] As a preferred embodiment of this utility model, the movable plate is L-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a dual-axis motor, rotating shafts, rotating rods, round shafts and T-shaped plates, will cause the two rotating shafts to rotate when the dual-axis motor is running, thereby causing the two rotating rods to rotate, which in turn causes the two round shafts to rotate and drive the two T-shaped plates to move upward. This causes the mounting plate to drive the ejector pin to move upward and automatically eject the die casting, solving the problem of low efficiency and easy damage of manually ejecting die castings, and improving the production quality of die castings.

[0013] 2. This utility model, by setting up a first threaded rod, a lifting plate, a connecting rod, a moving plate, and pins, rotates the two first threaded rods downwards, which will drive the two lifting plates downwards, thereby causing the four connecting rods to rotate and drive the four moving plates to move in opposite directions in pairs. This causes the four pins to move in opposite directions in pairs to release the fixing effect on the mounting plate, making it convenient to replace the mounting plate and ejector pins according to different die-casting molds, thus improving the versatility of the automatic ejection structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional view of the T-shaped plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the dual-axis motor structure of this utility model;

[0018] Figure 5This is a schematic diagram of the pin structure of this utility model.

[0019] In the diagram: 1. Mounting base; 2. Fixed mold; 3. Dual-axis motor; 4. Rotating shaft; 5. Rotating rod; 6. Round shaft; 7. T-shaped plate; 8. Mounting plate; 9. Ejector pin; 10. Limiting groove; 11. Fixing plate; 12. First threaded rod; 13. Lifting plate; 14. Connecting rod; 15. Moving plate; 16. Pin; 17. Second threaded rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 5 As shown, this utility model provides an automatic ejection structure for a die-casting mold, including a mounting base 1. A fixed mold 2 is movably connected to the top of the mounting base 1. A dual-axis motor 3 is fixedly connected to the bottom of the inner cavity of the mounting base 1. Rotating shafts 4 are fixedly sleeved on the output shafts of the dual-axis motor 3. One end of a rotating rod 5 is fixedly sleeved on the outer surface of the rotating shaft 4. A round shaft 6 is fixedly connected to the other end of the rotating rod 5. A T-shaped plate 7 is connected to the round shaft 6. The T-shaped plate 7 is vertically adjustable and has horizontally opened strip holes. The round shaft 6 is slidably connected to the strip holes. The tops of the two T-shaped plates 7 are connected to a mounting plate 8. Ejector pins 9 are fixedly connected to the top of the mounting plate 8. The tops of the ejector pins 9 extend into the interior of the fixed mold 2.

[0022] When the dual-axis motor 3 is running, the two rotating shafts 4 will drive the two rotating rods 5 to rotate, which in turn will cause the two round shafts 6 to rotate and drive the two T-shaped plates 7 to move upward, thereby causing the mounting plate 8 to drive the ejector pin 9 to move upward and eject the die-casting part.

[0023] The ejector pins 9 consist of twenty pins, which are evenly distributed above the mounting plate 8. This even distribution of the ejector pins 9 ensures uniform stress on the die-cast part during ejection, reducing the risk of deformation and damage, and improving product quality.

[0024] The fixed mold 2 is threaded with second threaded rods 17 on all four sides, and the bottom of the second threaded rods 17 extends into the interior of the mounting base 1 and is threaded therewith. The design of the second threaded rods 17 serves to fix the fixed mold 2 in place.

[0025] The mounting base 1 has limit grooves 10 on both the left and right sides of its inner cavity. The inner surface of the limit grooves 10 is movably connected to the outer surface of the T-shaped plate 7. The design of the limit grooves 10 serves to limit the movement of the T-shaped plate 7, ensuring the stability of the T-shaped plate 7 during lifting.

[0026] In this design, a fixing plate 11 is fixedly connected to the outer side of each of the two T-shaped plates 7, and a first threaded rod 12 is threadedly connected to the inner side of the fixing plate 11. The fixing plate 11 is designed to support the first threaded rod 12. A lifting plate 13 is rotatably connected to the top of the first threaded rod 12, and the inner side of the lifting plate 13 is slidably connected to the outer side of the T-shaped plate 7. Connecting rods 14 are hinged to the left and right sides of the top of the lifting plate 13, and a movable plate 15 is hinged to the other end of the connecting rod 14. The movable plate 15 is movably mounted on the T-shaped plate 7 and the mounting plate 8. Specifically, the surfaces of the T-shaped plate 7 and the mounting plate 8 are provided with movable grooves that are interconnected. The movable plate 15 is movably mounted in the movable grooves, and a pin 16 is fixedly connected to the outer side of the movable plate 15. The surface of the mounting plate 8 is also provided with a hole that communicates with the movable groove. The pin 16 can be inserted into the hole to lock the T-shaped plate 7 and the mounting plate 8.

[0027] Rotating the two first threaded rods 12 will cause the two lifting plates 13 to move downwards, which in turn causes the four connecting rods 14 to rotate, causing the four moving plates 15 to move towards each other in pairs. This causes the four pins 16 to move towards each other in pairs, releasing the fixing effect on the mounting plate 8, making it easier to replace the mounting plate 8 and ejector pins 9 according to different die-casting molds.

[0028] The outer surface of the movable plate 15 is smooth, and the movable plate 15 has an L-shaped appearance. The smooth design of the outer surface of the movable plate 15 makes the movement of the movable plate 15 on the T-shaped plate 7 and the mounting plate 8 smoother.

[0029] Working principle and usage process of this utility model:

[0030] After the die-casting part is formed, the dual-axis motor 3 is started, which will cause the two rotating shafts 4 to drive the two rotating rods 5 to rotate, which in turn causes the two round shafts 6 to rotate and drive the two T-shaped plates 7 to move upward. This causes the mounting plate 8 to drive the ejector pins 9 to move upward and automatically eject the die-casting part. Under the action of multiple ejector pins 9, the die-casting part is ensured to be subjected to uniform force during the ejection process, which reduces the risk of deformation and damage to the die-casting part and improves product quality.

[0031] Since the ejection structure lacks sufficient flexibility and versatility when dealing with die-cast parts of different sizes and shapes, rotating the two first threaded rods 12 causes the two lifting plates 13 to move downwards, which in turn causes the four connecting rods 14 to rotate, causing the four moving plates 15 to move towards each other in pairs. This allows the four pins 16 to move towards each other in pairs, releasing the fixing effect on the mounting plate 8. This makes it easier to replace the mounting plate 8 and ejector pins 9 according to different die-casting molds, thus improving the versatility of the automatic ejection structure.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic ejection structure for a die-casting mold, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is movably connected to a fixed mold (2). The bottom of the inner cavity of the mounting base (1) is fixedly connected to a dual-axis motor (3). The output shafts of the dual-axis motor (3) are all fixedly sleeved with rotating shafts (4). One end of a rotating rod (5) is fixedly sleeved on the outer surface of the rotating shaft (4). The other end of the rotating rod (5) is fixedly connected to a round shaft (6). The round shaft (6) is connected to a T-shaped plate (7). The T-shaped plate (7) is vertically adjustable and has a horizontally open strip hole. The round shaft (6) is slidably connected to the strip hole. The top of the T-shaped plate (7) is connected to a mounting plate (8). The top of the mounting plate (8) is fixedly connected to an ejector pin (9). The top of the ejector pin (9) penetrates into the interior of the fixed mold (2).

2. The automatic ejection structure of a die-casting mold according to claim 1, characterized in that: The number of ejector pins (9) is twenty, and the twenty ejector pins (9) are evenly distributed on the mounting plate (8).

3. The automatic ejection structure of a die-casting mold according to claim 1, characterized in that: The fixed mold (2) is threaded with a second threaded rod (17) around its perimeter. The bottom of the second threaded rod (17) extends into the interior of the mounting base (1) and is threaded therewith.

4. The automatic ejection structure of a die-casting mold according to claim 1, characterized in that: The mounting base (1) has limit grooves (10) on both sides of its inner cavity, and the inner surface of the limit grooves (10) is slidably connected to the outer surface of the T-shaped plate (7).

5. The automatic ejection structure of a die-casting mold according to claim 1, characterized in that: A fixing plate (11) is fixedly connected to the outer side of each of the two T-shaped plates (7). A first threaded rod (12) is threadedly connected to the fixing plate (11). A lifting plate (13) is rotatably connected to the top of the first threaded rod (12). The inner side of the lifting plate (13) is slidably connected to the outer side of the T-shaped plate (7). A connecting rod (14) is hinged to both sides of the top of the lifting plate (13). A moving plate (15) is hinged to the other end of the connecting rod (14). The moving plate (15) is movably mounted on the T-shaped plate (7) and the mounting plate (8). A pin (16) is fixedly connected to the outer side of the moving plate (15). An insertion hole is provided on the mounting plate (8). The pin (16) can be inserted into the insertion hole.

6. The automatic ejection structure of a die-casting mold according to claim 5, characterized in that: The movable plate (15) has an L-shaped appearance.

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