Casting mechanism for preventing oil cylinder from being burnt out

Abstract

The casting mechanism capable of preventing the oil cylinder from being burnt out comprises a lower die base, an upper die base is movably connected to the upper surface of the lower die base, supports are movably connected to the two sides of the front face of the lower die base through bolts, and supporting plates are movably connected to the outer surfaces of the supports through bolts. An oil cylinder is fixedly connected to the middle of the outer surface of the supporting plate. According to the casting mechanism capable of preventing the oil cylinder from being burnt out, through the arrangement of the oil cylinder, the connecting plate, the connecting rod, the slide, the guide block and the guide groove, when the output end of the oil cylinder stretches out and draws back, the connecting plate drives the slide to move front and back through the connecting rod, and core pulling work is achieved; according to the core-pulling device, the oil seal is prevented from being too close to a mold to burn out an oil cylinder to cause oil leakage, the risk of oil cylinder damage can be avoided, the service life is prolonged, meanwhile, when the slide moves, the guide blocks on the two sides of the outer surface of the slide slide in the guide grooves to play a guiding role, and the smoothness and accuracy of core-pulling movement are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a casting mechanism for preventing an oil cylinder from burning out. Background Art

[0002] Gravity casting refers to the process of pouring molten metal solution into the mold cavity of the mold under the action of gravity and forming a casting through cooling. In a broad sense, gravity casting includes sand casting, metal mold casting, investment casting, lost foam casting, mud mold casting, etc., and the design and manufacture of gravity casting molds are the key links in the entire process.

[0003] After searching, Chinese Patent Publication (Announcement) No. CN202321824939.0 discloses a gravity casting machine, including a casting body and a pouring body, a pouring body is provided on one side of the casting body, a first thick-diameter telescopic rod is fixedly connected to the surface of the casting body, a first thin-diameter telescopic rod is nested in the first thick-diameter telescopic rod, and a top mounting bracket is fixedly connected to the top of the first thin-diameter telescopic rod, a second thick-diameter telescopic rod is installed on the side of the casting body surface away from the top mounting bracket, a second thin-diameter telescopic rod is nested in the second thick-diameter telescopic rod, and a lower mold base is fixedly connected to the top surface of the second thin-diameter telescopic rod, connecting rods are installed at both ends of the pouring furnace, and moving sliders are provided at both ends of the connecting rods. The moving slider can drive the pouring furnace to move up and down to reach a suitable pouring position, and a molten iron temperature detector is also installed on the surface of the pouring body to record the molten iron temperature in real time, thereby realizing the automation of the pouring process and reducing the workload of workers.

[0004] Although the casting machine of the above patent can be automatically poured, some end cover molds involve core pulling applications during production due to their special structures, and core pulling requires the use of a cylinder to pull through the mold opening and closing. Since the temperature of the casting mold is always kept at a high temperature during the working state, the oil seal of the cylinder is easily burned and causes oil leakage. Therefore, it is necessary to design a casting mechanism that prevents the cylinder from burning out to solve the above problem. Utility Model Content

[0005] The main purpose of the utility model is to provide a casting mechanism for preventing the oil cylinder from burning out, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A casting mechanism for preventing the oil cylinder from burning out, including a lower die base, the upper surface of the lower die base is movably connected with an upper die base, both sides of the front surface of the lower die base are movably connected with brackets through bolts, the outer surface of the bracket is movably connected with a support plate through bolts, and the middle part of the outer surface of the support plate is fixedly connected with an oil cylinder; the output end of the oil cylinder is fixedly connected with a connecting plate, both sides of the outer surface of the connecting plate are fixedly connected with connecting rods, the connecting rods are slidably connected with the support plate, one end of the connecting rod is fixedly connected with a slider, and guide blocks are fixedly connected to both sides of the outer surface of the slider. Guide grooves are provided on the inner side surfaces of the lower die base and the bracket close to the guide blocks.

[0008] In order to achieve the effect of facilitating the installation of the lower die base and the upper die base, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, both sides of the lower surface of the lower die base are fixedly connected with first support columns, one end of the first support column is fixedly connected with a first mounting plate, both sides of the upper surface of the upper die base are fixedly connected with second support columns, and one end of the second support column is fixedly connected with a second mounting plate.

[0009] In order to achieve the effect of strengthening the support, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, the middle part of the lower surface of the lower die base is fixedly connected with a first fixing rod, and the middle part of the upper surface of the upper die base is fixedly connected with a second fixing rod.

[0010] In order to achieve the effect of facilitating the ejection of the workpiece inside the lower die base, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, the bottom of the outer surface of the first support column is slidably connected with a first sliding plate, and the upper surface of the first sliding plate is fixedly connected with a first ejector pin.

[0011] In order to achieve the effect of facilitating the ejection of the workpiece inside the upper die base, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, the top of the outer surface of the second support column is slidably connected with a second sliding plate, and the lower surface of the second sliding plate is fixedly connected with a second ejector pin.

[0012] In order to achieve the effect of strengthening the accuracy of the movement of the ejector pin, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, the upper surface of the first mounting plate and the lower surface of the second mounting plate are both fixedly connected with cushion plates, and guide rods are fixedly connected to the outer surfaces of the cushion plates.

[0013] In order to achieve the effect of facilitating pouring, as a casting mechanism for preventing the oil cylinder of the present utility model from burning out, both sides of the outer surface of the lower die base are fixedly connected with first pouring sleeves, and both sides of the outer surface of the upper die base are fixedly connected with second pouring sleeves.

[0014] In order to achieve the effect of facilitating mold closing, as a casting mechanism for preventing the oil cylinder from burning out in the present utility model, positioning columns are fixedly connected to the four corners of the upper surface of the lower mold base, and positioning sleeves are fixedly connected to the four corners inside the upper mold base.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. In the present utility model, through the settings of the oil cylinder, connecting plate, connecting rod, slider, guide block and guide groove, when the output end of the oil cylinder expands and contracts, the connecting plate drives the slider to move back and forth through the connecting rod to realize the core-pulling operation. The oil cylinder is installed reversely to move back and forth, so that the oil seal of the oil cylinder is far away from the mold, preventing the phenomenon that the oil seal is too close to the mold and burns out the oil cylinder, resulting in oil leakage. The risk of oil cylinder damage can be avoided, and the service life can be extended. At the same time, when the slider moves, the guide blocks on both sides of its outer surface slide inside the guide groove, playing a guiding role to ensure the smoothness and accuracy of the core-pulling movement.

[0017] 2. In the present utility model, through the settings of the first pouring sleeve, the second pouring sleeve, the positioning column and the positioning sleeve, when closing the mold, the two groups of first pouring sleeves and the second pouring sleeves fit together to form a pouring runner, which can pour the molten metal into the mold from their interiors, reducing the influence of the gate on the surface quality of the workpiece. When closing the mold, the positioning sleeve is sleeved inside the positioning column for alignment, preventing the mold base from shifting, and avoiding the mold collision caused by misalignment during mold closing. It can play a precise guiding role during the process of opening and closing the mold, ensuring the accuracy of workpiece forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the embodiment of the present utility model;

[0019] Figure 2 is the cross-sectional plane structural schematic diagram of the embodiment of the present utility model;

[0020] Figure 3 is the bracket structural schematic diagram of the embodiment of the present utility model;

[0021] Figure 4 is the upper mold base structural schematic diagram of the embodiment of the present utility model;

[0022] Figure 5 is the lower mold base structural schematic diagram of the embodiment of the present utility model.

[0023] In the figure: 1. Lower die base; 2. Upper die base; 3. Bracket; 4. Support plate; 5. Oil cylinder; 6. Connecting plate; 7. Connecting rod; 8. Slide; 9. Guide block; 10. Guide groove; 11. First pillar; 12. First mounting plate; 13. Second pillar; 14. Second mounting plate; 15. First fixing rod; 16. Second fixing rod; 17. First slide plate; 18. First ejector pin; 19. Second slide plate; 20. Second ejector pin; 21. Cushion plate; 22. Guide rod; 23. First pouring sleeve; 24. Second pouring sleeve; 25. Locating pin; 26. Locating sleeve. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment

[0026] As Figures 1-5 shown, a casting mechanism for preventing the oil cylinder from burning out includes a lower die base 1. The upper surface of the lower die base 1 is movably connected with an upper die base 2. Both sides of the front surface of the lower die base 1 are movably connected with brackets 3 through bolts. The outer surface of the bracket 3 is movably connected with a support plate 4 through bolts. The middle part of the outer surface of the support plate 4 is fixedly connected with an oil cylinder 5. The output end of the oil cylinder 5 is fixedly connected with a connecting plate 6. Both sides of the outer surface of the connecting plate 6 are fixedly connected with connecting rods 7. The connecting rods 7 are slidably connected with the support plate 4. One end of the connecting rod 7 is fixedly connected with a slide 8. Both sides of the outer surface of the slide 8 are fixedly connected with guide blocks 9. Guide grooves 10 are provided on the inner sides of the lower die base 1 and the brackets 3 close to the guide blocks 9.

[0027] During specific use, through the settings of the support 3, oil cylinder 5, connecting plate 6, connecting rod 7 and slider 8, the inner parts of the lower die base 1 and the upper die base 2 fit with each other, facilitating the casting and molding of workpieces. The support 3 is fixed on both sides of the front surface of the lower die base 1 by threads, and the support plate 4 is fixed on the outer surface of the support 3 by bolts for supporting and fixing the oil cylinder 5, making it convenient for workers to disassemble and assemble the mold when the oil cylinder 5 is damaged, with low production costs. The output end of the oil cylinder 5 is connected to the connecting plate 6, one end of the connecting rod 7 is connected to the connecting plate 6, and the other end is connected to the slider 8. When the output end of the oil cylinder 5 expands and contracts, the connecting plate 6 drives the slider 8 to move back and forth through the connecting rod 7, realizing the core-pulling operation. The oil cylinder 5 is installed in reverse for forward and backward movement, keeping the oil seal of the oil cylinder 5 away from the mold, preventing the phenomenon of oil leakage caused by the oil seal being too close to the mold and burning out, avoiding the risk of damage to the oil cylinder 5 and extending its service life. At the same time, when the slider 8 moves, the guide blocks 9 on both sides of its outer surface slide inside the guide groove 10, playing a guiding role to ensure the smoothness and accuracy of the core-pulling movement.

[0028] In this embodiment, first support columns 11 are fixedly connected to both sides of the lower surface of the lower die base 1, and a first mounting plate 12 is fixedly connected to one end of each first support column 11. Second support columns 13 are fixedly connected to both sides of the upper surface of the upper die base 2, and a second mounting plate 14 is fixedly connected to one end of each second support column 13.

[0029] During specific use, through the settings of the first mounting plate 12 and the second mounting plate 14, the lower die base 1 is connected to the casting machine through the first support columns 11 and the first mounting plate 12, and the upper die base 2 is connected to the casting machine through the second support columns 13 and the second mounting plate 14, making their installation more convenient.

[0030] In this embodiment, a first fixing rod 15 is fixedly connected to the middle of the lower surface of the lower die base 1, and a second fixing rod 16 is fixedly connected to the middle of the upper surface of the upper die base 2.

[0031] During specific use, through the settings of the first fixing rod 15 and the second fixing rod 16, both the first fixing rod 15 and the second fixing rod 16 are provided with two, and are respectively connected to the lower die base 1 and the upper die base 2, which can support the middle parts of the two to ensure stability during use.

[0032] In this embodiment, a first sliding plate 17 is slidably connected to the bottom of the outer surface of the first support column 11, and a first ejector pin 18 is fixedly connected to the upper surface of the first sliding plate 17.

[0033] During specific use, through the setting of the first ejector pin 18, the first sliding plate 17 is connected to the ejection driving mechanism. When the casting machine opens the mold, if the workpiece adheres to the cavity of the lower die base 1, the first sliding plate 17 can drive the first ejector pin 18 to move upward, and under the action of multiple first ejector pins 18, the workpiece is ejected to realize the demolding function.

[0034] In this embodiment, a second sliding plate 19 is slidably connected to the top of the outer surface of the second support pillar 13, and a second ejector pin 20 is fixedly connected to the lower surface of the second sliding plate 19.

[0035] During specific use, through the setting of the second ejector pin 20, the second sliding plate 19 is connected to the ejection driving mechanism. When the mold is opened, if the workpiece adheres to the inside of the cavity of the upper mold base 2, under the action of the second sliding plate 19, multiple second ejector pins 20 can eject the workpiece, ensuring the integrity of the workpiece and achieving a better ejection effect.

[0036] In this embodiment, cushion plates 21 are fixedly connected to the upper surface of the first mounting plate 12 and the lower surface of the second mounting plate 14, and guide rods 22 are fixedly connected to the outer surfaces of the cushion plates 21.

[0037] During specific use, through the setting of the cushion plates 21, there are two sets of cushion plates 21, and four guide rods 22 are fixed to the outer surfaces of the cushion plates 21. When the first sliding plate 17 and the second sliding plate 19 move, the four guide rods 22 can guide the two, making the movement of the first sliding plate 17 and the second sliding plate 19 more precise, preventing deviation during the movement process, and improving the accuracy of the displacement.

[0038] In this embodiment, first pouring sleeves 23 are fixedly connected to both sides of the outer surface of the lower mold base 1, and second pouring sleeves 24 are fixedly connected to both sides of the outer surface of the upper mold base 2.

[0039] During specific use, through the setting of the first pouring sleeves 23 and the second pouring sleeves 24, the two sets of first pouring sleeves 23 and second pouring sleeves 24 fit together. When the mold is closed, the two form a pouring runner, which can pour the molten metal into the mold from their interiors, reduce the influence of the gate on the surface quality of the workpiece, and facilitate subsequent processing.

[0040] In this embodiment, positioning columns 25 are fixedly connected to the four corners of the upper surface of the lower mold base 1, and positioning sleeves 26 are fixedly connected to the four corners inside the upper mold base 2.

[0041] During specific use, through the setting of the positioning columns 25 and the positioning sleeves 26, when the mold is closed, the positioning sleeves 26 are sleeved inside the positioning columns 25 for alignment, preventing the mold base from shifting, avoiding mold collision caused by misalignment during mold closing, and playing a role of precise guidance during the process of mold opening and closing, ensuring the accuracy of workpiece forming.

[0042] Working principle: During use, the lower die holder 1 is connected to the casting machine through the first support pillar 11 and the first mounting plate 12, and the upper die holder 2 is connected to the casting machine through the second support pillar 13 and the second mounting plate 14. The first slide plate 17 and the second slide plate 19 are respectively connected to the ejection driving mechanism. When clamping the mold, the positioning sleeve 26 is sleeved inside the positioning post 25 for alignment, avoiding mold collision caused by misalignment during mold clamping, and can play a role in precise guidance during the process of mold opening and closing. The two groups of first pouring sleeves 23 and second pouring sleeves 24 are mutually fitted, and can pour molten metal into the mold from their interiors. When the casting machine opens the mold, if the workpiece adheres to the cavity inside the lower die holder 1, the first slide plate 17 drives the first ejector pin 18 to move upward to eject the workpiece. If the workpiece adheres to the cavity inside the upper die holder 2, under the action of the second slide plate 19, multiple second ejector pins 20 eject the workpiece to achieve the demolding function. The four guide rods 22 make the movement of the first slide plate 17 and the second slide plate 19 more precise. When the output end of the oil cylinder 5 expands and contracts, the connecting plate 6 drives the slider 8 to move back and forth through the connecting rod 7 to achieve the core-pulling operation. The oil cylinder 5 is installed reversely to move back and forth, so that the oil seal of the oil cylinder 5 is far away from the mold, preventing the phenomenon of oil leakage caused by the oil seal being burned out due to being too close to the mold, avoiding the risk of damage to the oil cylinder 5 and prolonging the service life. At the same time, when the slider 8 moves, the guide blocks 9 on both sides of its outer surface slide inside the guide groove 10 to play a guiding role, ensuring the smoothness and precision of the core-pulling movement.

[0043] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A casting mechanism for preventing a cylinder from burning out, comprising a lower die base (1), characterized in that: The upper surface of the lower die base (1) is movably connected to the upper die base (2), both sides of the front surface of the lower die base (1) are movably connected to brackets (3) through bolts, the outer surface of the bracket (3) is movably connected to a support plate (4) through bolts, and the middle part of the outer surface of the support plate (4) is fixedly connected to an oil cylinder (5); The output end of the oil cylinder (5) is fixedly connected to a connecting plate (6), both sides of the outer surface of the connecting plate (6) are fixedly connected to connecting rods (7), the connecting rods (7) are slidably connected to the support plate (4), one end of the connecting rod (7) is fixedly connected to a slide (8), both sides of the outer surface of the slide (8) are fixedly connected to guide blocks (9), and a guide groove (10) is provided on the inner side surface of the lower die seat (1) and the bracket (3) near the guide block (9).

2. A casting mechanism for preventing oil cylinder from burning out according to claim 1, characterized in that: Both sides of the lower surface of the lower die base (1) are fixedly connected to first pillars (11), one end of the first pillar (11) is fixedly connected to a first mounting plate (12), and both sides of the upper surface of the upper die base (2) are fixedly connected to second pillars (13), one end of the second pillar (13) is fixedly connected to a second mounting plate (14).

3. A casting mechanism for preventing oil cylinder from burning out according to claim 1, characterized in that: A first fixing rod (15) is fixedly connected to the middle of the lower surface of the lower die base (1), and a second fixing rod (16) is fixedly connected to the middle of the upper surface of the upper die base (2).

4. A casting mechanism for preventing oil cylinder from burning out according to claim 2, characterized in that: The bottom of the outer surface of the first pillar (11) is slidably connected to a first slide plate (17), and the upper surface of the first slide plate (17) is fixedly connected to a first ejector pin (18).

5. A casting mechanism for preventing oil cylinder from burning out according to claim 2, characterized in that: The top of the outer surface of the second pillar (13) is slidably connected to a second slide plate (19), and the lower surface of the second slide plate (19) is fixedly connected to a second ejector pin (20).

6. A casting mechanism for preventing oil cylinder from burning out according to claim 2, characterized in that: The upper surface of the first mounting plate (12) and the lower surface of the second mounting plate (14) are both fixedly connected to a pad (21), and the outer surface of the pad (21) is fixedly connected to a guide rod (22).

7. A casting mechanism for preventing oil cylinder from burning out according to claim 1, characterized in that: The outer surface of the lower mold base (1) is fixedly connected to a first casting sleeve (23) on both sides, and the outer surface of the upper mold base (2) is fixedly connected to a second casting sleeve (24) on both sides.

8. The casting mechanism for preventing the oil cylinder from burning out according to claim 1, characterized in that: The four corners of the upper surface of the lower die seat (1) are fixedly connected with positioning columns (25), and the four corners inside the upper die seat (2) are fixedly connected with positioning sleeves (26).

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