Chiller casting mold convenient for mold stripping

Abstract

The utility model discloses a chill casting mould convenient for demoulding, which comprises an upper mould base, the lower surface of the upper mould base is movably connected with a lower mould base, one side of the lower surface of the upper mould base is provided with a groove, and a chill is clamped in the groove; the two sides of the upper surface of the upper die base and the two sides of the lower surface of the lower die base are movably connected with connecting columns through bolts. According to the chill casting mold convenient to demold, through the arrangement of the chill, the mounting plate, the ejector pin and the limiting plate, the ejector pin is connected with the mounting plate through the mounting hole, the limiting plate limits one end of the ejector pin, mounting and dismounting are more convenient, the demolding function of the mold can be achieved, and when a product structure has an inverted buckle, the chill buckles the inverted buckle position and is formed together with a product; after the cold iron is taken off, the cold iron is placed in the groove again, it can be guaranteed that the structure of the product is not abnormal, the local cooling effect can be achieved, the size of a cast finished casting is accurate, and the quality of the casting is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a chill casting mold convenient for mold release. Background Technique

[0002] Casting refers to the process of melting solid metal into liquid and pouring it into a mold with a specific shape, waiting for it to solidify and form, and obtaining a casting with a predetermined shape, size and performance after finishing treatment. The casting process often requires the use of casting molds to allow the liquid metal to enter the mold along a specific path to form a casting.

[0003] After retrieval, Chinese Patent Publication No. CN220127563U discloses a fixing device for chills in sand casting, including a mold. Both the front and rear sides of the top of the mold are fixedly connected with mounting frames. The right sides of the two mounting frames are fixedly connected with a mounting plate. The right side of the mounting plate is fixedly connected with a mounting seat. A rotating wheel is rotatably connected to the middle of the mounting seat. A rotating rod is fixedly connected to the middle of the rotating wheel. A wire rope is arranged outside the rotating wheel. In the utility model, when installing the chill, it can be pre-placed first, avoiding the trouble of manual handling, saving labor, and at the same time ensuring the accuracy of the position when installing the chill, avoiding the installation and disassembly of the chill, realizing the firm installation of the chill on the inner core of the mold, and effectively ensuring that the chill will not fall off between the chill and the core box during the sand shooting and compaction processes during sand shooting core making, avoiding the displacement of the chill, and improving the quality of the casting.

[0004] Although the above patent can fix and install the chill, when casting aluminum alloy raw materials on a low-pressure casting machine at a suitable pouring temperature, when there are individual structures in an inverted position that are inconvenient for mold release, the casting is difficult, the production capacity is low, and the product structure is prone to abnormalities. Therefore, it is necessary to design a chill casting mold convenient for mold release to solve the above problems. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a chill casting mold convenient for mold release, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A chill casting mold facilitating demolding, comprising an upper mold base, the lower surface of the upper mold base is movably connected with a lower mold base, a groove is opened on one side of the lower surface of the upper mold base, and a chill is clamped inside the groove; both sides of the upper surface of the upper mold base and both sides of the lower surface of the lower mold base are movably connected with connecting columns through bolts, one end of the connecting column is movably connected with a support plate through a bolt, one side of the outer surface of the connecting column is slidably connected with a mounting plate, a mounting hole is opened on the upper surface of the mounting plate, a thimble is movably connected inside the mounting hole, and a limiting plate is movably connected to the outer surface of the mounting plate through a bolt.

[0008] In order to achieve the effect of facilitating the forming of workpieces, as a chill casting mold facilitating demolding of the present utility model, a first forming cavity is opened in the middle of the lower surface of the upper mold base, and a second forming cavity is opened in the middle of the upper surface of the lower mold base.

[0009] In order to achieve the effect of facilitating the clamping of chills, as a chill casting mold facilitating demolding of the present utility model, the number of the grooves is several, and several of the grooves are evenly opened on the lower surface of the upper mold base in a circumferential array, and both the grooves and the chills are trapezoidal structures.

[0010] In order to achieve the effect of strengthening the accuracy of thimble movement, as a chill casting mold facilitating demolding of the present utility model, limiting grooves are opened on the outer surfaces of the mounting plate and the limiting plate close to one side of the connecting column, a guide rod is fixedly connected to the lower surface of the limiting plate, the guide rod is movably connected with the mounting plate, and the guide rod is slidably connected with the upper mold base and the lower mold base.

[0011] In order to achieve the effect of facilitating mold closing and alignment, as a chill casting mold facilitating demolding of the present utility model, first connecting holes are opened at the four corners of the upper surface of the upper mold base, positioning sleeves are inserted into the first connecting holes, second connecting holes are opened at the four corners of the upper surface of the lower mold base, and positioning columns are inserted into the second connecting holes.

[0012] In order to achieve the effect of facilitating pouring, as a chill casting mold facilitating demolding of the present utility model, first pouring runners are fixedly connected to both sides of the outer surface of the upper mold base, and second pouring runners are fixedly connected to both sides of the outer surface of the lower mold base.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. In the present utility model, through the settings of the chill, mounting plate, ejector pin, and limit plate, the ejector pin is connected to the mounting plate through the mounting hole, and the limit plate limits one end of the ejector pin, making the installation and disassembly more convenient. Under the action of multiple ejector pins, the demolding function of the mold is realized. When there is an undercut in the product structure, the chill holds the undercut position and is molded together with the product, and then is ejected together with the product. After removing the chill and re-placing it inside the groove, it can ensure that the product structure is normal and also play a role in local cooling. The size of the cast finished product is precise, effectively ensuring the quality of the casting.

[0015] 2. In the present utility model, through the settings of the positioning sleeve, positioning post, first gating runner, and second gating runner, when the upper mold base and the lower mold base are closed, the positioning post is inserted into the positioning sleeve, preventing the mold from shifting, avoiding mold collision caused by misalignment during mold closing, and at the same time playing a role in precise guidance during the mold opening and closing process, ensuring the quality of the workpiece forming. The two groups of first gating sleeves and second gating sleeves fit together, facilitating the pouring of molten metal into the mold. The first gating runner is shorter than the second gating runner, which is convenient for the staff to view the amount of molten metal poured from the outside, avoiding the phenomenon of molten metal overflow during the casting process, and greatly improving the quality of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 It is a sectional structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 It is a structural schematic diagram of the lower mold base of an embodiment of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of the upper mold base of an embodiment of the present utility model;

[0020] Figure 5 It is a structural schematic diagram of the ejector pin of an embodiment of the present utility model.

[0021] In the figure: 1, upper mold base; 2, lower mold base; 3, groove; 4, chill; 5, connecting column; 6, support plate; 7, mounting plate; 8, mounting hole; 9, ejector pin; 10, limit plate; 11, first forming cavity; 12, second forming cavity; 13, limit groove; 14, guide rod; 15, first connection hole; 16, positioning sleeve; 17, second connection hole; 18, positioning post; 19, first gating runner; 20, second gating runner. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] As Figures 1-5 shown, a chill casting mold facilitating demolding includes an upper mold base 1. The lower surface of the upper mold base 1 is movably connected to a lower mold base 2. A groove 3 is formed on one side of the lower surface of the upper mold base 1, and a chill 4 is clamped inside the groove 3. Both sides of the upper surface of the upper mold base 1 and both sides of the lower surface of the lower mold base 2 are movably connected to connecting columns 5 through bolts. One end of the connecting column 5 is movably connected to a support plate 6 through a bolt. One side of the outer surface of the connecting column 5 is slidably connected to a mounting plate 7. A mounting hole 8 is formed on the upper surface of the mounting plate 7, and a ejector pin 9 is movably connected inside the mounting hole 8. The outer surface of the mounting plate 7 is movably connected to a limiting plate 10 through a bolt.

[0025] During specific use, through the settings of the groove 3, the chill 4, the mounting plate 7, the ejector pin 9, and the limiting plate 10, the ejector pin 9 is connected to the mounting plate 7 through the mounting hole 8, and the limiting plate 10 limits one end of the ejector pin 9. The limiting plate 10 and the mounting plate 7 are connected through bolts. Then, the two groups of ejector pins 9 are respectively inserted into the upper mold base 1 and the lower mold base 2. The multiple connecting columns 5 and the support plate 6 are connected to the upper mold base 1 and the lower mold base 2 through bolts respectively. At the same time, the mounting plate 7 and the limiting plate 10 are limited, making the installation and disassembly of the ejector pin 9 more convenient, facilitating replacement when damaged, without the need to replace the whole, saving costs. Under the action of multiple ejector pins 9, the demolding function of the mold is realized, enabling the mold ejection action to be smoother. When there is an undercut in the product structure, the chill 4 can hold the undercut position. Based on the mold design, the chill 4 and the product are placed and formed together according to the operation instruction manual, enabling its features to be perfectly formed, and then ejected together with the product. The operator removes the chill 4 in the correct way and then places it back inside the groove 3 again, which can ensure that the product structure is normal and also play a role in local cooling, changing the solidification sequence of the hot spot position, improving the density of the casting, thereby reducing the shrinkage porosity defect of the product. There is no need to manufacture parts such as sand cores and core pulling, the process is simple, and the size of the cast finished product is accurate, effectively ensuring the quality of the casting.

[0026] In this embodiment, a first forming cavity 11 is formed in the middle of the lower surface of the upper mold base 1, and a second forming cavity 12 is formed in the middle of the upper surface of the lower mold base 2.

[0027] During specific use, through the settings of the first forming cavity 11 and the second forming cavity 12, which match each other, they are used to ensure product forming and are used for die casting forming.

[0028] In this embodiment, the number of the grooves 3 is several, and several grooves 3 are evenly arranged on the lower surface of the upper die base 1 in a circumferential array. Both the grooves 3 and the chill blocks 4 are trapezoidal structures.

[0029] During specific use, through the settings of the grooves 3 and the chill blocks 4, both of which are trapezoidal structures, it is more convenient to install the chill blocks 4, and they are not easy to fall off after being inserted, thus enhancing the stability.

[0030] In this embodiment, on the outer surfaces of the mounting plate 7 and the limiting plate 10 near one side of the connecting column 5, limiting grooves 13 are provided. A guide rod 14 is fixedly connected to the lower surface of the limiting plate 10. The guide rod 14 is movably connected to the mounting plate 7 and is slidably connected to the upper die base 1 and the lower die base 2.

[0031] During specific use, through the settings of the limiting grooves 13 and the guide rod 14, the mounting plate 7 and the limiting plate 10 are slidably connected to the outer surface of the connecting column 5 through the limiting grooves 13, with accurate positioning and convenient installation. Cooperating with the guide rod 14, the ejector pin 9 slides more accurately, enhancing the smoothness during reciprocating motion.

[0032] In this embodiment, first connection holes 15 are provided at the four corners of the upper surface of the upper die base 1. A positioning sleeve 16 is inserted into the first connection holes 15. Second connection holes 17 are provided at the four corners of the upper surface of the lower die base 2. A positioning post 18 is inserted into the second connection holes 17.

[0033] During specific use, through the settings of the positioning sleeve 16 and the positioning post 18, the positioning sleeve 16 and the positioning post 18 are respectively inserted into the first connection holes 15 and the second connection holes 17 to limit and fix the connecting column 5 during installation, making installation and disassembly more convenient. When the upper die base 1 and the lower die base 2 are clamped, the positioning post 18 is inserted into the positioning sleeve 16 to prevent the die from shifting, avoiding die collision caused by misalignment during clamping, and at the same time playing a role in accurate guidance during the process of opening and closing the die, ensuring the quality of workpiece forming.

[0034] In this embodiment, first gating runners 19 are fixedly connected to both sides of the outer surface of the upper die base 1, and second gating runners 20 are fixedly connected to both sides of the outer surface of the lower die base 2.

[0035] During actual use, due to the arrangement of the first pouring runner 19 and the second pouring runner 20, when the upper die base 1 and the lower die base 2 are closed, the two groups of the first pouring runner 19 and the second pouring runner 20 are in alignment with each other, facilitating the pouring of molten metal into the mold. The first pouring runner 19 is shorter than the second pouring runner 20, which is convenient for workers to view the amount of molten metal poured from the outside, avoiding the phenomenon of molten metal overflow during the casting process and greatly improving the quality of the casting.

[0036] Working principle: During use, the ejector pin 9 is connected to the mounting plate 7 through the mounting hole 8. The limiting plate 10 limits one end of the ejector pin 9. The limiting plate 10 is connected to the mounting plate 7 by bolts. Then, the two groups of ejector pins 9 are respectively inserted into the upper die base 1 and the lower die base 2. Multiple connecting columns 5 and the support plate 6 are connected to the upper die base 1 and the lower die base 2 by bolts respectively. At the same time, the mounting plate 7 and the limiting plate 10 are limited, making the installation and disassembly of the ejector pin 9 more convenient. When there is an undercut in the product structure, the chill 4 is inserted into the groove 3 to hold the undercut position. The upper die base 1 and the lower die base 2 are closed, and the positioning post 18 is inserted into the positioning sleeve 16 to prevent the mold from shifting. The two groups of the first pouring runner 19 and the second pouring runner 20 are in alignment with each other to pour the molten metal into the mold. Based on the mold design, the chill 4 and the product are formed together. Subsequently, they are ejected together by the ejector pin 9. The operator removes the chill 4 in the correct way and then places it back into the groove 3 again, which can ensure that the product structure is normal and can also play a role in local cooling. There is no need to manufacture parts such as sand cores and core pulling, the process is simple, and the size of the cast finished product is accurate, effectively ensuring the quality of the casting.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A chill casting mold facilitating mold release, comprising an upper mold base (1), characterized in that: The lower surface of the upper die base (1) is movably connected to the lower die base (2). A groove (3) is formed on one side of the lower surface of the upper die base (1), and a chill (4) is clamped inside the groove (3). On both sides of the upper surface of the upper die base (1) and both sides of the lower surface of the lower die base (2), connecting columns (5) are movably connected by bolts. One end of the connecting column (5) is movably connected to a support plate (6) by a bolt. On one side of the outer surface of the connecting column (5), a mounting plate (7) is slidably connected. A mounting hole (8) is formed on the upper surface of the mounting plate (7), and a thimble (9) is movably connected inside the mounting hole (8). A limiting plate (10) is movably connected to the outer surface of the mounting plate (7) by a bolt.

2. The chill casting mold facilitating demolding according to claim 1, wherein: A first forming cavity (11) is formed in the middle of the lower surface of the upper die base (1), and a second forming cavity (12) is formed in the middle of the upper surface of the lower die base (2).

3. A chill casting mold facilitating demolding according to claim 1, characterized in that: The number of the grooves (3) is several. The several grooves (3) are evenly formed on the lower surface of the upper die base (1) in a circumferential array. Both the groove (3) and the chill (4) are trapezoidal structures.

4. A chill casting mold facilitating demolding according to claim 1, characterized in that: Limiting grooves (13) are formed on the outer surfaces of the mounting plate (7) and the limiting plate (10) close to one side of the connecting column (5). A guide rod (14) is fixedly connected to the lower surface of the limiting plate (10). The guide rod (14) is movably connected to the mounting plate (7), and the guide rod (14) is slidably connected to the upper die base (1) and the lower die base (2).

5. The chill casting mold facilitating mold release according to claim 1, wherein: First connecting holes (15) are formed at the four corners of the upper surface of the upper die base (1), and positioning sleeves (16) are inserted into the first connecting holes (15). Second connecting holes (17) are formed at the four corners of the upper surface of the lower die base (2), and positioning columns (18) are inserted into the second connecting holes (17).

6. The chill casting mold convenient for mold release according to claim 1, wherein: First pouring runners (19) are fixedly connected to both sides of the outer surface of the upper die base (1), and second pouring runners (20) are fixedly connected to both sides of the outer surface of the lower die base (2).

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