A demoulding device for a cast iron pan die casting machine

Abstract

The utility model relates to cast -iron pot casting technical field, concretely is a kind of stripping device for cast -iron pot die casting machine, including lower mould, bottom plate groove is equipped in lower mould middle part, top stripping assembly is inserted in bottom plate groove, top stripping assembly includes bottom bracing plate body, bottom bracing plate body is movably inserted in bottom plate groove, bottom bracing plate body one side is inserted with limit slot plate, bottom bracing plate body other side is inserted with locking clamping plate, bottom bracing plate body one side is hinged with first pressure rod;The stripping device for cast -iron pot die casting machine proposed in the utility model is mainly by inserting top stripping assembly in lower mould bottom, it is driven by bottom bracing plate body to lift by foot treading first pressure rod, cast -iron pot is lifted to strip, when lifting to specified height, locking tooth is clamped in locking groove, bottom bracing plate body is fixed, after stripping is completed, only need to drive adjusting pin extrusion limit adjusting block by foot treading second pressure rod, make the locking groove of locking clamping plate separate from locking tooth, bottom bracing plate body slides and resets, low-loss and fast cast -iron pot stripping are realized.

Description

Technical Field

[0001] This utility model relates to the field of cast iron pot casting technology, specifically a demolding device for a cast iron pot die casting machine. Background Technology

[0002] Die casting of cast iron pots is a casting process that injects molten cast iron into a precision mold under high pressure. Its core feature is the use of a die casting machine to quickly fill and cool the mold, which can efficiently produce cast iron pots with complex shapes, smooth surfaces, and uniform wall thickness.

[0003] Chinese Patent CN220612242U discloses a die-casting device for cast iron pot blanks, including a heating furnace with an inwardly recessed hemispherical heating groove in the middle of the upper end; a lower mold with a hemispherical lower end fitting against the hemispherical heating groove, and an inwardly recessed hemispherical forming groove in the middle of the upper end; an upper mold including a cover plate and a hemisphere, the hemisphere being fixedly connected to the lower middle end of the cover plate, the cover plate being detachably connected to the upper end of the lower mold, the hemisphere being embedded in the hemispherical forming groove, and the gap formed between the hemisphere and the hemispherical forming groove being a forming cavity; the output end of a cylinder is fixedly connected to the upper end of the cover plate, which can preheat the mold to ensure uniform heating of the mold and prevent sand holes or cracks from forming when molten iron is poured into the mold due to sudden cooling.

[0004] The above-mentioned scheme and existing technology of cast iron pot die casting machine usually use hydraulic telescopic rod to drive the upper mold to move downward and squeeze the lower mold. The gap formed between the two is the forming cavity. The molten iron in the forming cavity is squeezed into pot blank. The upper mold moves upward and after cooling and forming, the pot blank is pried and clamped by hand with pliers along the edge of the pot. Directly prying and clamping the pot blank with pliers can easily cause damage and deformation to the mold and pot body. Relying on release agent can reduce such situations. However, excessive reliance on release agent will not only increase costs, but the release agent will also produce harmful gases in high temperature environment. Utility Model Content

[0005] The purpose of this utility model is to provide a demolding device for a cast iron pot die casting machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a demolding device for a cast iron pot die casting machine includes a lower mold, a support leg fixedly connected to one side of the lower mold, a bottom plate groove provided in the middle of the lower mold, a fixing column fixedly connected to one side of the lower mold, and a top demolding component inserted into the bottom plate groove;

[0007] The top release assembly includes a bottom support plate, which is movably inserted into a bottom plate groove. A limit groove plate is inserted into one side of the bottom support plate, and a locking plate is inserted into the other side of the bottom support plate. A first pressure rod is hinged to one side of the bottom support plate.

[0008] Preferably, one side of the limiting groove plate is fixedly connected to the lower mold, and the other side of the limiting groove plate is fixedly connected to a bottom connecting plate. One side of the bottom connecting plate is fixedly connected to a fixing column, and one side of the bottom connecting plate is provided with a limiting groove. A rubber pad is fixedly inserted into one side of the bottom connecting plate.

[0009] Preferably, a locking tooth is fixedly connected to one side of the bottom support plate, and a locking groove is provided on one side of the locking plate, with the locking tooth engaging with the locking groove.

[0010] Preferably, the locking plate is slidably connected to the limiting groove on both sides, and the limiting groove is provided on one side of the lower mold and one side of the bottom connecting plate.

[0011] Preferably, a spring is fixedly connected to one side of the locking plate, the spring is fixedly connected to a fixed post on one side, and a limit adjustment block is fixedly connected to one side of the locking plate.

[0012] Preferably, the limiting adjustment block is provided with an adjustment groove on one side, an adjustment pin is slidably inserted into the adjustment groove, one side of the adjustment pin is slidably inserted into the limiting groove, a second pressure rod is hinged to one side of the adjustment pin, a pressure column is pressed against one side of the second pressure rod, the pressure column is fixedly connected to the bottom connecting plate, and one side of the pressure column is pressed against the first pressure rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The present invention proposes a demolding device for a cast iron pot die-casting machine. This device mainly involves inserting a demolding component into the bottom of the lower mold. By stepping on the first pressure rod, the bottom support plate is lifted, causing the cast iron pot to be demolded. When the pot is lifted to a specified height, the locking teeth engage in the locking groove, and the bottom support plate is fixed. After demolding, the second pressure rod is stepped on to push the adjusting pin against the limiting adjustment block, causing the locking groove of the locking plate to disengage from the locking teeth. The bottom support plate then slides back to its original position, achieving low-damage and rapid demolding of the cast iron pot. Attached Figure Description

[0015] Figure 1 A schematic diagram of a demolding device for a die-casting machine for cast iron pots;

[0016] Figure 2 Another schematic diagram of the structure of a demolding device for a die-casting machine for cast iron pots;

[0017] Figure 3 A schematic diagram of the lifting state of a demolding device for a cast iron pot die-casting machine;

[0018] Figure 4 This is a partial structural cross-sectional view of a demolding device for a cast iron pot die-casting machine;

[0019] Figure 5 for Figure 4 Enlarged diagram of part A in the middle;

[0020] Figure 6 This is another partial structural diagram of a demolding device for a cast iron pot die-casting machine.

[0021] In the diagram: lower mold 1, support leg 2, bottom plate groove 3, fixing column 4, bottom support plate 501, limiting groove plate 502, locking plate 503, first pressure rod 504, bottom connecting plate 505, locking tooth 506, locking groove 507, limiting slide groove 508, limiting groove 509, spring 510, limiting adjustment block 511, adjusting slide groove 512, adjusting pin 513, second pressure rod 514, pressing column 515, rubber pad 516. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1 to 6 This utility model provides the following two technical solutions:

[0024] Example 1: A demolding device for a cast iron pot die casting machine includes a lower mold 1, a support leg 2 fixedly connected to one side of the lower mold 1, a bottom plate groove 3 in the middle of the lower mold 1, a fixed column 4 fixedly connected to one side of the lower mold 1, and a top ejection assembly inserted into the bottom plate groove 3; the top ejection assembly includes a bottom support plate 501, the bottom support plate 501 is movably inserted into the bottom plate groove 3, a limit groove plate 502 is inserted into one side of the bottom support plate 501, a locking plate 503 is inserted into the other side of the bottom support plate 501, and a first pressure rod 504 is hinged to one side of the bottom support plate 501.

[0025] In use, molten iron is poured into the lower mold 1, and the hydraulic telescopic rod drives the upper mold to press the lower mold 1 downward, so that the cast iron pot is extruded and formed. After cooling down, the upper mold rises and the cast iron pot is demolded through the ejector assembly inserted in the bottom plate groove 3 of the lower mold 1.

[0026] Example 2: Based on Example 1, one side of the limiting groove plate 502 is fixedly connected to the lower mold 1, and the other side of the limiting groove plate 502 is fixedly connected to the bottom connecting plate 505. One side of the bottom connecting plate 505 is fixedly connected to the fixing post 4, and one side of the bottom connecting plate 505 is provided with a limiting groove 509. A rubber pad 516 is fixedly inserted into one side of the bottom connecting plate 505. One side of the bottom support plate 501 is fixedly connected to a locking tooth 506, and one side of the locking plate 503 is provided with a locking groove 507. The locking tooth 506 is engaged with the locking groove 507. Both sides of the locking plate 503 are slidably connected to the limiting slide groove 508, and the limiting slide groove 508 is provided on one side of the lower mold 1. A spring 510 is fixedly connected to one side of the bottom connecting plate 505; a spring 510 is fixedly connected to one side of the locking plate 503; a limit adjustment block 511 is fixedly connected to one side of the locking plate 503; an adjustment groove 512 is provided on one side of the limit adjustment block 511; an adjustment pin 513 is slidably inserted into the adjustment groove 512; one side of the adjustment pin 513 is slidably inserted into the limit groove 509; a second pressure rod 514 is hinged to one side of the adjustment pin 513; a pressure post 515 is pressed against one side of the second pressure rod 514; the pressure post 515 is fixedly connected to the bottom connecting plate 505; one side of the pressure post 515 is pressed against the first pressure rod 504.

[0027] During use, when demolding, step on one end of the first pressure rod 504, using the pressure column 515 as a fulcrum, to pry open the bottom support plate 501 hinged to the first pressure rod 504. The bottom support plate 501 is pushed upward, causing the cast iron pot to detach from the lower mold 1, thus achieving demolding. During the lifting process, one side of the bottom support plate 501 slides within the limiting groove plate 502, while the locking teeth 506 on the other side of the bottom support plate 501 continuously press against the locking plate 503 and the spring 510, and... The bottom support plate 501 is continuously engaged within the limiting groove 509. When it is lifted to the specified height, the locking tooth 506 engages within the limiting groove 509, fixing the bottom support plate 501 at the specified height. Since one side of the bottom support plate 501 is completely in contact with the cast iron pot and has a large contact area, the pot is less damaged when lifted. After removing the cast iron pot, step on the second pressure rod 514 and use the pressure column 515 as a fulcrum to pry open the adjusting pin hinged to the second pressure rod 514. 513, the adjusting pin 513 is slidably inserted into the limiting groove 509 on one side and into the adjusting slide groove 512 on the other side. The limiting groove 509 and the adjusting slide groove 512 have a horizontal limiting effect on the adjusting pin 513. The second pressure rod 514 pries the adjusting pin 513 upward and squeezes the adjusting slide groove 512 in the limiting adjusting block 511, so that the locking plate 503 is pulled, so that the locking groove 507 is disengaged from the locking tooth 506. The bottom support plate 501 falls onto the rubber pad 516 under its own weight. The rubber pad 516 plays a buffering and protective role. At this time, the bottom support plate 501 returns to its original state. After the second pressure rod 514 is released, the adjusting pin 513 returns to its original state under the restoring squeezing action of the spring 510. The locking plate 503 is also squeezed into the bottom support plate 501. The locking tooth 506 is locked into the locking groove 507 again, returning to the initial state, and the next casting and demolding work can be carried out again.

[0028] 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. A demolding device for a cast iron pot die casting machine, comprising a lower mold (1), one side of the lower mold (1) is fixedly connected with a supporting leg (2), characterized in that: The lower mold (1) has a bottom plate groove (3) in the middle, and a fixed column (4) is fixedly connected to one side of the lower mold (1). A top ejection assembly is inserted into the bottom plate groove (3). The top release assembly includes a bottom support plate (501), which is movably inserted into the bottom plate groove (3). A limiting groove plate (502) is inserted into one side of the bottom support plate (501), and a locking plate (503) is inserted into the other side of the bottom support plate (501). A first pressure rod (504) is hinged to one side of the bottom support plate (501).

2. The demolding device for a cast iron pot die casting machine according to claim 1, characterized in that: The limiting groove plate (502) is fixedly connected to the lower mold (1) on one side, and a bottom connecting plate (505) is fixedly connected to the other side of the limiting groove plate (502). The bottom connecting plate (505) is fixedly connected to the fixing column (4) on one side, and a limiting groove (509) is provided on one side of the bottom connecting plate (505). A rubber pad (516) is fixedly inserted into one side of the bottom connecting plate (505).

3. The demolding device for a cast iron pot die casting machine according to claim 1, characterized in that: A locking tooth (506) is fixedly connected to one side of the bottom support plate (501), and a locking groove (507) is provided on one side of the locking plate (503), and the locking tooth (506) is engaged with the locking groove (507).

4. The demolding device for a cast iron pot die casting machine according to claim 1, characterized in that: The locking plate (503) is slidably connected to the limiting groove (508) on both sides. The limiting groove (508) is located on one side of the lower mold (1) and one side of the bottom connecting plate (505).

5. The demolding device for a cast iron pot die casting machine according to claim 1, characterized in that: A spring (510) is fixedly connected to one side of the locking plate (503), and a fixed post (4) is fixedly connected to one side of the spring (510). A limit adjustment block (511) is fixedly connected to one side of the locking plate (503).

6. A demolding device for a cast iron pot die-casting machine according to claim 5, characterized in that: The limiting adjustment block (511) has an adjustment groove (512) on one side, and an adjustment pin (513) is slidably inserted into the adjustment groove (512). The adjustment pin (513) is slidably inserted into the limiting groove (509) on one side, and a second pressure rod (514) is hinged to one side of the adjustment pin (513). A pressing column (515) is pressed on one side of the second pressure rod (514). The pressing column (515) is fixedly connected to the bottom connecting plate (505), and one side of the pressing column (515) is pressed against the first pressure rod (504).

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