Gravity casting device facilitating discharging

Abstract

The utility model provides a gravity casting device convenient to unload, which comprises a bottom plate, a casting device body arranged on the bottom plate and an overturning driving device for driving the casting device body to overturn, the casting device body comprises a top plate, a male die fixing plate for placing a male die and a female die fixing plate for placing a female die; a guide device is arranged among the top plate, the male die fixing plate, the female die fixing plate and the bottom plate, an opening and closing driving device for driving the male die fixing plate to move along the guide device is arranged on the top plate, and a material ejecting device is arranged on the female die fixing plate. According to the automatic overturning and ejecting mechanism, the discharging process is more efficient, the opportunity that operators make direct contact with high-temperature materials is reduced through automatic operation of the overturning driving device and the ejecting device, and the risk of safety accidents such as scalding is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting machines, in particular to a gravity casting device which is convenient for unloading. Background Art

[0002] Gravity casting is a process whereby molten metal is poured into a metal mold under the influence of gravity to produce a casting. The key characteristic of gravity casting is the process of pouring molten metal into the mold cavity to produce the casting. During this process, whether the molten metal fills the mold cavity, achieving a complete shape and clear outline, and minimizing defects such as shrinkage cavities and porosity are crucially affected by the fluidity of the molten metal and the casting process.

[0003] In traditional gravity casting processes, the casting mechanism typically requires manual operation for mold opening and closing, casting, and unloading. This method is not only inefficient but also poses significant safety risks due to the operator's frequent contact with the hot casting and mold. Furthermore, manual operation is limited in precision, which can lead to inaccurate casting positions and compromise casting quality. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a gravity casting device that is easy to unload, so as to solve the problems of low efficiency and high safety risks of manual operation in the prior art.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides the following technical solutions:

[0006] A gravity casting device that is convenient for unloading comprises a bottom plate, a casting device body arranged on the bottom plate, and a flipping drive device for driving the casting device body to flip; the casting device body comprises a top plate, a punch fixing plate for placing a punch, and a die fixing plate for placing a die; a guide device is provided between the top plate, the punch fixing plate, the die fixing plate and the bottom plate; an opening and closing drive device is provided on the top plate for driving the punch fixing plate to move along the guide device, and a material ejecting device is provided on the die fixing plate.

[0007] To implement the above technical solution, before casting, the punch fixing plate and the die fixing plate are precisely aligned through the opening and closing drive device, and closed to form a complete mold cavity. The molten metal is injected into the mold cavity through the casting port. The flipping drive device flips the entire casting device body, and casting is performed by gravity. After the casting is completed, it is cooled to an appropriate temperature. The flipping drive device drives the casting device body to reset, and the opening and closing drive device is started to move the punch fixing plate along the guide device, open the mold, and the ejection device ejects the casting from the die. The automated flipping and ejection mechanism of the present application makes the unloading process more efficient. The automated operation of the flipping drive device and the ejection device reduces the chance of direct contact between the operator and the high-temperature material, reducing the risk of safety accidents such as burns.

[0008] In one embodiment of the present invention, the flipping drive device includes a triangular bracket arranged at one end of the die fixing plate, a base arranged at the lower end of the triangular bracket, and a hydraulic cylinder with one end hinged to the base and the other end hinged to the bottom plate; a rotating shaft is provided at one end of the bottom plate close to the triangular bracket, and the rotating shaft is rotatably arranged on the triangular bracket, and the hydraulic cylinder can drive the bottom plate to rotate along the rotating shaft.

[0009] To implement this technical solution, a triangular bracket is installed at one end of the die fixing plate, providing a stable support point and the fulcrum for the turning action. A base is installed at the lower end of the triangular bracket and fixed to the ground, providing a stable foundation for the hydraulic cylinder and triangular bracket. One end of the hydraulic cylinder is hinged to the base and the other end is hinged to the base plate. The extension and retraction of the hydraulic cylinder is the power source for the turning of the base plate and the casting device body.

[0010] In one embodiment of the present invention, the guide device includes a guide rail provided on the base plate, a slider slidably provided on the guide rail, and a guide assembly provided on the slider.

[0011] To implement the above technical solution, the guide device is a key component to ensure the smooth and precise movement of the casting device body during the opening and closing process; the guide rail is set on the base plate, defining the path of the opening and closing movement of the punch fixing plate and the die fixing plate, ensuring the linearity and stability of the movement; the slider is slidably set on the guide rail and drives the punch fixing plate to open or close.

[0012] In one embodiment of the present invention, the guide assembly includes a first guide sleeve arranged on the slider and fixed to the punch fixing plate, a second guide sleeve arranged on the top plate, and a third guide sleeve arranged on the die fixing plate. The first guide sleeve, the second guide sleeve and the third guide sleeve are all provided with a large guide rod parallel to the guide rail.

[0013] To implement this technical solution, the guide assembly consists of a first guide sleeve mounted on the slider, a second guide sleeve mounted on the top plate, and a third guide sleeve mounted on the die mounting plate. These sleeves are each threaded with large guide rods that run parallel to the guide rails. This design creates a stable guide system, ensuring that the punch and die mounting plates follow a precise path during opening and closing.

[0014] In one embodiment of the present invention, the ejecting device includes a cylinder fixing plate, a ejecting cylinder arranged on the cylinder fixing plate, and a ejecting plate arranged on the output shaft of the ejecting cylinder. The ejecting plate is provided with a plurality of ejecting rods, and the cylinder fixing plate is provided with a plurality of small guide rods parallel to the ejecting rods.

[0015] To implement the above technical solution, the cylinder mounting plate is used to secure the ejector cylinder and ensure its stability. During operation, the output shaft of the ejector cylinder pushes the ejector plate, which in turn pushes the ejector rod outward. The ejector rod contacts the casting and ejects it from the mold. After the casting is removed, the ejector cylinder retracts, and the ejector rod returns to its original position, ready for the next ejection operation. The cylinder mounting plate is equipped with several small guide rods parallel to the ejector rod. These small guide rods serve as guides, ensuring that the ejector rod moves along a precise path during the ejection process, improving the stability and accuracy of the ejection process.

[0016] In one embodiment of the present invention, the opening and closing driving device is an opening and closing cylinder, and the output shaft of the opening and closing cylinder is arranged on the punch fixing plate.

[0017] To implement this technical solution, an opening and closing cylinder, a compressed air-powered actuator, serves as the opening and closing drive. This allows for rapid opening and closing of the punch platen. The cylinder's output shaft is directly connected to the punch platen, meaning the cylinder's push-pull motion is directly transmitted to the platen, driving the mold opening and closing.

[0018] As described above, the utility model is a gravity casting device that is easy to unload, which has the following beneficial effects: the automated flipping and ejecting mechanism reduces manual operation and improves production efficiency, while reducing the chance of direct contact between operators and high-temperature materials, reducing the risk of safety accidents such as burns; the design of the guide device and the guide sleeve provides stable support and guidance, ensuring the smoothness and accuracy during the mold opening and closing and flipping process, and the stable mold opening and closing and ejecting action helps to maintain the consistency of casting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a schematic structural diagram of the present utility model.

[0020] Figure 2 Shown is a schematic structural diagram of the casting device body.

[0021] Figure 3 Shown is a schematic diagram of the structure of the die fixing plate.

[0022] Component number description

[0023] 1. Bottom plate; 2. Top plate; 3. Punch fixing plate; 4. Die fixing plate; 5. Triangle bracket; 6. Base; 7. Hydraulic cylinder; 8. Rotating shaft; 9. Guide rail; 10. Slider; 11. First guide sleeve; 12. Second guide sleeve; 13. Third guide sleeve; 14. Large guide rod; 15. Cylinder fixing plate; 16. Ejecting cylinder; 17. Ejecting plate; 18. Ejecting rod; 19. Small guide rod; 20. Opening and closing cylinder. DETAILED DESCRIPTION

[0024] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0025] See also Figures 1 to 3 The utility model provides a gravity casting device that is convenient for unloading, comprising a bottom plate 1, a casting device body arranged on the bottom plate 1, and a flip driving device for driving the casting device body to flip, the casting device body comprising a top plate 2, a punch fixing plate 3 for placing a punch, and a die fixing plate 4 for placing a die; a guide device is provided between the top plate 2, the punch fixing plate 3, the die fixing plate 4 and the bottom plate 1, an opening and closing driving device for driving the punch fixing plate 3 to move along the guide device is provided on the top plate 2, and a material ejecting device is provided on the die fixing plate 4.

[0026] Before casting, the punch fixing plate 3 and the die fixing plate 4 are precisely aligned by the opening and closing drive device, and closed to form a complete mold cavity. The molten metal is injected into the mold cavity through the casting port. The flipping drive device flips the entire casting device body, and casting is performed by gravity. After the casting is completed, it is cooled to an appropriate temperature. The flipping drive device drives the casting device body to reset, and the opening and closing drive device is started to move the punch fixing plate 3 along the guide device, open the mold, and the ejection device ejects the casting from the die. The automated flipping and ejection mechanism of the present application makes the unloading process more efficient. The automated operation of the flipping drive device and the ejection device reduces the chance of direct contact between the operator and the high-temperature material, reducing the risk of safety accidents such as burns.

[0027] The flipping drive device includes a triangular bracket 5 arranged at one end of the die fixing plate 4, a base 6 arranged at the lower end of the triangular bracket 5, and a hydraulic cylinder 7 with one end hinged to the base 6 and the other end hinged to the bottom plate 1; the bottom plate 1 is provided with a rotating shaft 8 at one end close to the triangular bracket 5, and the rotating shaft 8 is rotatably arranged on the triangular bracket 5, and the hydraulic cylinder 7 can drive the bottom plate 1 to rotate along the rotating shaft 8.

[0028] Triangular support 5 is mounted at one end of the die fixing plate 4, providing a stable support point and the fulcrum for the turning motion. Base 6 is located at the lower end of triangular support 5 and is fixed to the ground, providing a stable foundation for hydraulic cylinder 7 and triangular support 5. One end of hydraulic cylinder 7 is hinged to base 6, and the other end is hinged to base plate 1. The extension and retraction of hydraulic cylinder 7 is the power source for turning base plate 1 and the casting apparatus.

[0029] The guide device includes a guide rail 9 provided on the base plate 1, a slider 10 slidably provided on the guide rail 9, and a guide assembly provided on the slider 10. The guide device is a key component that ensures smooth and precise movement of the casting device body during the opening and closing process. The guide rail 9 is provided on the base plate 1 and defines the path of the opening and closing movement of the punch fixing plate 3 and the die fixing plate 4, ensuring the linearity and stability of the movement. The slider 10 is provided slidably provided on the guide rail 9 and drives the punch fixing plate 3 to open or close.

[0030] The guide assembly includes a first guide sleeve 11 mounted on the slider 10 and fixed to the punch plate 3, a second guide sleeve 12 mounted on the top plate 2, and a third guide sleeve 13 mounted on the die plate 4. Each of the first, second, and third guide sleeves 11, 12, and 13 is threaded with a large guide rod 14 parallel to the guide rail 9. The guide assembly consists of the first guide sleeve 11 mounted on the slider 10, the second guide sleeve 12 mounted on the top plate 2, and the third guide sleeve 13 mounted on the die plate 4. Each of these guide sleeves is threaded with a large guide rod 14 parallel to the guide rail 9. This design creates a stable guide system, ensuring that the punch plate 3 and die plate 4 move along a precise path during opening and closing.

[0031] The ejection device includes a cylinder fixing plate 15, an ejection cylinder 16 arranged on the cylinder fixing plate 15, and an ejection plate 17 arranged on the output shaft of the ejection cylinder 16. A plurality of ejection rods 18 are provided on the ejection plate 17, and a plurality of small guide rods 19 parallel to the ejection rods 18 are provided on the cylinder fixing plate 15. The cylinder fixing plate 15 is used to fix the ejection cylinder 16 to ensure its stability. During operation, the output shaft of the ejection cylinder 16 pushes the ejection plate 17, and the ejection plate 17 pushes the ejection rods 18 outward. The ejection rods 18 contact the casting and eject the casting from the mold. After the casting is removed, the ejection cylinder 16 contracts and the ejection rods 18 return to their original positions, preparing for the next ejection action. A plurality of small guide rods 19 parallel to the ejector rod 18 are provided on the cylinder fixing plate 15. These small guide rods 19 play a guiding role, ensuring that the ejector rod 18 moves along a precise path during the ejection process, thereby improving the stability and accuracy of the ejection process.

[0032] The opening and closing drive device is an opening and closing cylinder 20, whose output shaft is mounted on the punch plate 3. The opening and closing cylinder 20, as the opening and closing drive device, is a compressed air-powered actuator that enables rapid opening and closing of the punch plate 3. The output shaft of the opening and closing cylinder 20 is directly connected to the punch plate 3, meaning that the cylinder's push and pull motion is directly transmitted to the punch plate 3, thereby driving the opening and closing of the mold.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any equivalent modifications or variations made by persons skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the claims of the present invention.

Claims

1. A gravity casting device for easy unloading, comprising a base plate, a casting device body disposed on the base plate, and a turning drive device for driving the casting device body to turn over, characterized in that: The casting device body includes a top plate, a punch fixing plate for placing the punch, and a die fixing plate for placing the die; A guiding device is provided between the top plate, the punch fixing plate, the die fixing plate and the bottom plate; an opening and closing driving device for driving the punch fixing plate to move along the guiding device is provided on the top plate; and a material ejecting device is provided on the die fixing plate.

2. A gravity casting device for easy unloading according to claim 1, characterized in that: The flipping drive device includes a triangular bracket arranged at one end of the die fixing plate, a base arranged at the lower end of the triangular bracket, and a hydraulic cylinder with one end hinged to the base and the other end hinged to the bottom plate; a rotating shaft is provided at one end of the bottom plate close to the triangular bracket, and the rotating shaft is rotatably arranged on the triangular bracket, and the hydraulic cylinder can drive the bottom plate to rotate along the rotating shaft.

3. The gravity casting device with convenient unloading according to claim 1, characterized in that: The guide device includes a guide rail arranged on the base plate, a slider slidably arranged on the guide rail, and a guide assembly arranged on the slider.

4. A gravity casting device for easy unloading according to claim 3, characterized in that: The guide assembly includes a first guide sleeve arranged on the slider and fixed to the punch fixing plate, a second guide sleeve arranged on the top plate, and a third guide sleeve arranged on the die fixing plate. The first guide sleeve, the second guide sleeve and the third guide sleeve are all provided with a large guide rod parallel to the guide rail.

5. The gravity casting device with convenient unloading according to claim 1, characterized in that: The ejection device includes a cylinder fixing plate, an ejection cylinder arranged on the cylinder fixing plate, and an ejection plate arranged on the output shaft of the ejection cylinder. The ejection plate is provided with a plurality of ejection rods, and the cylinder fixing plate is provided with a plurality of small guide rods parallel to the ejection rods.

6. The gravity casting device with convenient unloading according to claim 1, characterized in that: The opening and closing driving device is an opening and closing cylinder, and the output shaft of the opening and closing cylinder is arranged on the punch fixing plate.

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