An internal slag removal mold with a sliding structure

Abstract

The utility model discloses an internal slag removal mold with a sliding structure, comprising a lower mold, an upper mold is provided at one end of the lower mold, and the upper mold is designed in a convex shape, an inner mold is fixedly installed on the side of the lower mold close to the upper mold, and inner film positioning and fixing blocks are respectively provided at the four corners of the inner mold, and the inner mold and the lower mold are connected by screws, and the outer surface of the inner film positioning and fixing block is provided with screw holes, and a sliding mechanism is provided inside the lower mold, and the blockage caused by the mold during casting is conveniently cleaned by the sliding mechanism. The internal slag removal mold with a sliding structure can fix the sliding block inside the lower mold through a slide groove and a slider when in use, so that when the slag removal cavity and the vent pipe in the sliding block are blocked, they can be directly removed from the lower mold for maintenance, and the good sliding block can be directly replaced without disassembling the entire mold for maintenance, which greatly improves the production efficiency and facilitates maintenance and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint casting, in particular to an internal slag discharge mold provided with a sliding structure. Background Art

[0002] With the improvement of parts quality and requirements, many parts have begun to be manufactured using casting technology. When making parts, it is necessary to spray the release agent into the mold cavity first so that it can be demolded smoothly after casting. During the process of molten metal injection molding, the release agent will be washed into the slag discharge cavity by the molten metal. If the mold is not set up properly, the slag will solidify and remain on the surface of the product, causing quality problems. However, during the production process, the slag discharge port is often blocked for various reasons, which often requires disassembly and maintenance, resulting in a lot of time waste and affecting production efficiency. Utility Model Content

[0003] The utility model aims to provide an internal slag discharge mold with a sliding structure to solve the problem in the above background technology that a lot of time is wasted in assembly, disassembly and maintenance after the slag discharge port is blocked.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal slag removal mold with a sliding structure, comprising a lower mold, an upper mold is arranged at one end of the lower mold, and the upper mold is designed in a convex shape, an inner mold is fixedly installed on the side of the lower mold close to the upper mold, and inner membrane positioning and fixing blocks are respectively arranged at the four corners of the inner mold, and the inner mold and the lower mold are connected by screws, the outer surface of the inner membrane positioning and fixing block is arranged with screw holes, and the inner membrane positioning and fixing block is engaged with the upper mold, and a sliding mechanism is arranged inside the lower mold, and the sliding mechanism is used to facilitate the cleaning of blockages caused by the mold during casting.

[0005] Preferably, the sliding mechanism includes: a sliding block, a slider is fixedly installed on the outer surface of the sliding block away from the upper mold, and the side of the sliding block away from the inner mold is inclined, a sliding groove is opened on the inner side of the lower mold, and the sliding groove is engaged with the slider, and the slider and the sliding groove are slidably connected.

[0006] By adopting the above technical solution, when the upper mold cover is engaged with the lower mold, during the process of the upper mold descending, the upper mold will contact the inclined surface of the sliding block, and the sliding block will be tightly fitted with the side surface of the inner mold through the downward pressure of the upper mold. Then, a closed space is formed through the fit between the upper mold and the outer surface of the inner mold, and then die casting is carried out, which makes it convenient to replace the inner mold and enable the sliding block to be replaced and removed for maintenance without affecting production.

[0007] Preferably, a positioning column is fixedly installed on the outer surface of the sliding block away from the lower mold, and the positioning column is engaged with the upper mold. The side surface of the sliding block is tightly fitted with the side surface of the inner mold, and a casting cavity is opened inside the inner mold, and the height of the casting cavity is lower than the height of the sliding block.

[0008] By adopting the above technical solution, the sliding block can be fitted with the inner mold by engaging the upper mold and the lower mold. At the same time, the positioning column is engaged with the upper mold to prevent the sliding block from moving, thereby reducing burrs between the sliding block and the inner mold.

[0009] Preferably, a slag discharge cavity is evenly provided on the outer surface of the sliding block close to the inner mold, and the slag discharge cavity is trapezoidal in design, ventilation pipes are evenly arranged inside the sliding block, and the ventilation pipes are connected to each slag discharge cavity, and the ventilation pipes pass through the outer surface of the sliding block, and an exhaust port is provided on the side of the lower mold close to the sliding block, and the exhaust port is located between the slide grooves.

[0010] By adopting the above technical solution, gas can be discharged to the outside through the vent pipe during casting, so that slag can easily enter the slag discharge cavity, and gas can be discharged from the mold from the exhaust port, reducing bubbles and air pits in the material in the casting cavity.

[0011] Preferably, a push-opening mechanism is provided between the inner mold and the sliding block, and the sliding block and the inner mold are automatically disengaged through the push-opening mechanism.

[0012] By adopting the above technical solution, after the upper die is taken out from the lower die, the sliding block can be automatically opened to facilitate the removal of the solidified parts.

[0013] Preferably, the top opening mechanism includes: a pop-up column, the outer surface of the pop-up column passes through the outer surface of the sliding block, and the sliding block and the pop-up column are slidably connected, a spring is arranged between the pop-up column and the sliding block, and the spring is located inside the sliding block, and the side surface of the pop-up column is in contact with the side surface of the inner mold.

[0014] By adopting the above technical solution, when the upper mold is taken out, the spring will push the pop-up column to push the pop-up column out of the sliding block, so that the pop-up column pushes the sliding block with the inner mold as the fulcrum, so that the sliding block is separated from the inner mold, and the residual material in the slag discharge chamber is also taken out together, ensuring that the slag discharge chamber and the ventilation pipe are clean and unobstructed.

[0015] Preferably, an ejector pin is slidably installed inside the casting cavity, and the ejector pin penetrates the outer surface of the lower mold, and the outer surface of the inner mold fits with the outer surface of the upper mold.

[0016] By adopting the above technical solution, the parts in the casting cavity can be ejected by the ejector, making it convenient for workers to take them out.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the internal slag discharge mold with a sliding structure:

[0018] 1. When in use, the sliding block can be fixed inside the lower mold through the chute and the slider, so that when the slag discharge cavity and the vent pipe in the sliding block are blocked, it can be directly removed from the lower mold for maintenance, and the sliding block can be directly replaced without removing the entire mold for maintenance, which greatly improves the production efficiency and facilitates maintenance and replacement;

[0019] 2. When the lower die and the upper die are closed, the contact between the upper die and the inclined surface of the sliding block will push the sliding block toward the inner die, so that the inner die and the sliding block fit closely together, so that the slag will flow into the slag discharge cavity along the casting cavity during die casting, and the gas will be smoothly discharged from the exhaust port through the vent pipe, so that the slag will enter the slag discharge cavity and solidify, so that when the parts are taken out, the slag will be taken out together with the parts, reducing the probability of bubbles and pores in the parts and improving the quality of the parts;

[0020] 3. When the lower die is separated from the upper die, the positioning column is separated from the upper die. At the same time, the spring will push the pop-up column to move, so that the pop-up column pushes the sliding block with the inner die as the fulcrum, so that the sliding block is automatically separated from the inner die after the upper die is opened. Then, the part is separated from the casting cavity by the ejector pin without opening the sliding block, which makes it convenient for workers to take the part out of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the sliding block and the slag discharge chamber of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the sliding connection between the lower mold and the sliding block of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the pop-up column and the sliding block connected to the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding block and the slag discharge chamber of the utility model.

[0027] In the figure: 1. lower mold; 2. inner mold; 3. casting cavity; 4. inner membrane positioning and fixing block; 5. sliding block; 6. slide groove; 7. slider; 8. positioning column; 9. slag discharge cavity; 10. vent pipe; 11. ejection column; 12. spring; 13. exhaust port; 14. ejector pin; 15. upper mold. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: an internal slag removal mold with a sliding structure, including a lower mold 1, an upper mold 15 is arranged at one end of the lower mold 1, and the upper mold 15 is designed in a convex shape, an inner mold 2 is fixedly installed on the side of the lower mold 1 close to the upper mold 15, and inner film positioning and fixing blocks 4 are respectively arranged at the four corners of the inner mold 2, and the inner mold 2 and the lower mold 1 are connected by screws, the outer surface of the inner film positioning and fixing block 4 is provided with screw holes, and the inner film positioning and fixing block 4 is engaged with the upper mold 15.

[0030] The inner mold 2 can be removed by screws, and then the screw holes on the outer surface of the inner membrane positioning and fixing block 4 are screwed in to lift the inner mold 2 out, and the inner mold 2 of different specifications can be replaced for casting. At the same time, the upper mold 15 can be positioned by the inner membrane positioning and fixing block 4.

[0031] A sliding mechanism is provided inside the lower mold 1, which is used to facilitate cleaning of blockages caused by the mold during casting. The sliding mechanism includes: a sliding block 5, a sliding block 7 is fixedly installed on the outer surface of the sliding block 5 away from the upper mold 15, and the side of the sliding block 5 away from the inner mold 2 is inclined, a sliding groove 6 is provided on the inner side of the lower mold 1, and the sliding groove 6 is engaged with the sliding block 7, and the sliding block 7 and the sliding groove 6 are slidably connected.

[0032] When the lower mold 1 and the upper mold 15 are closed, the two ends of the upper mold 15 will contact the inclined surface of the sliding block 5. The sliding block 5 will be pushed close to the inner mold 2 by the descent of the upper mold 15, so that the side surface of the inner mold 2 is tightly fitted with the side surface of the sliding block 5. The sliding block 5 is fixed by the positioning column 8, and a closed space is formed inside the mold by the sliding block 5 and the upper mold 15, so that the material die-cast into the casting cavity 3 can be shaped, and at the same time, burrs can be prevented from forming between the sliding block 5 and the inner mold 2.

[0033] A positioning column 8 is fixedly installed on the outer surface of the sliding block 5 away from the lower mold 1, and the positioning column 8 is engaged with the upper mold 15. The side surface of the sliding block 5 is tightly fitted with the side surface of the inner mold 2, and a casting cavity 3 is opened inside the inner mold 2, and the height of the casting cavity 3 is lower than the height of the sliding block 5.

[0034] The sliding block 5 can be inserted into the lower mold 1 through the slider 7 and the slide groove 6, so that the sliding block 5 can slide on the lower mold 1. When the vent pipe 10 in the sliding block 5 is blocked and the excess gas in the casting cavity 3 cannot be discharged, the sliding block 5 can be removed from the lower mold 1 for replacement, so that the mold can work now, and then the replaced sliding block 5 can be inspected and repaired. Replacing the sliding block 5 can greatly improve the production efficiency.

[0035] A slag discharge cavity 9 is evenly provided on the outer surface of the sliding block 5 close to the inner mold 2, and the slag discharge cavity 9 is trapezoidal in design. Ventilation pipes 10 are evenly provided inside the sliding block 5, and the vent pipes 10 are connected to each slag discharge cavity 9, and the vent pipes 10 pass through the outer surface of the sliding block 5. An exhaust port 13 is provided on the side of the lower mold 1 close to the sliding block 5, and the exhaust port 13 is located between the slide grooves 6.

[0036] After the lower mold 1 and the upper mold 15 are closed, molten metal is injected into the casting cavity 3 through the die casting port, so that the molten metal rises along the casting cavity 3, and the excess gas in the casting cavity 3 is discharged from the exhaust port 13 through the vent pipe 10, so that the slag can smoothly enter the slag discharge cavity 9, and the slag is cooled together with the parts. After cooling, the parts and the slag are taken out of the casting cavity 3, and then only the slag on the side of the parts needs to be cut off to prevent bubbles and pores from being generated in the parts, and at the same time, the slag is taken out of the slag discharge cavity 9 along with the parts.

[0037] A push-open mechanism is provided between the inner mold 2 and the sliding block 5, and the sliding block 5 is automatically disengaged from the inner mold 2 through the push-open mechanism. The push-open mechanism includes: a pop-up column 11, the outer surface of the pop-up column 11 passes through the outer surface of the sliding block 5, and the sliding block 5 and the pop-up column 11 are slidably connected, a spring 12 is provided between the pop-up column 11 and the sliding block 5, and the spring 12 is located inside the sliding block 5, the side surface of the pop-up column 11 is in contact with the side surface of the inner mold 2, an ejector pin 14 is slidably installed inside the casting cavity 3, and the ejector pin 14 passes through the outer surface of the lower mold 1, and the outer surface of the inner mold 2 is in contact with the outer surface of the upper mold 15.

[0038] When cooling is completed, the upper mold 15 is separated from the lower mold 1, and the positioning column 8 is separated from the upper mold 15. At this time, the spring 12 will push the pop-up column 11 to move, so that the pop-up column 11 pushes the sliding block 5 with the inner mold 2 as the fulcrum, so that the slag discharge cavity 9 is separated from the slag inside, and the sliding block 5 is automatically opened while the upper mold 15 is opened. After the sliding block 5 is separated from the inner mold 2, the ejector pin 14 will move to lift the cooled parts in the casting cavity 3, which is convenient for workers to take, reduces the operation steps and improves work efficiency.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal slag removal mold with a sliding structure, comprising a lower mold (1), an upper mold (15) is arranged at one end of the lower mold (1), and the upper mold (15) is designed in a convex shape, an inner mold (2) is fixedly installed on the side of the lower mold (1) close to the upper mold (15), and inner mold positioning and fixing blocks (4) are respectively arranged at the four corners of the inner mold (2), and the inner mold (2) and the lower mold (1) are connected by screws, the outer surface of the inner mold positioning and fixing block (4) is provided with a screw hole, and the inner mold positioning and fixing block (4) is engaged with the upper mold (15), characterized in that: A sliding mechanism is arranged inside the lower mold (1), and blockages caused by the mold during casting can be easily cleaned through the sliding mechanism.

2. The internal slag removal mold with a sliding structure according to claim 1, characterized in that: The sliding mechanism comprises: a sliding block (5), a sliding block (7) is fixedly mounted on the outer surface of a side of the sliding block (5) away from the upper mold (15), and the side of the sliding block (5) away from the inner mold (2) is designed to be inclined, a sliding groove (6) is provided on the inner side of the lower mold (1), and the sliding groove (6) is engaged with the sliding block (7), and the sliding block (7) and the sliding groove (6) are slidably connected.

3. The internal slag removal mold with a sliding structure according to claim 2, characterized in that: A positioning column (8) is fixedly mounted on the outer surface of the sliding block (5) away from the lower mold (1), and the positioning column (8) is engaged with the upper mold (15). The side surface of the sliding block (5) is tightly fitted with the side surface of the inner mold (2), and a casting cavity (3) is provided inside the inner mold (2), and the height of the casting cavity (3) is lower than the height of the sliding block (5).

4. The internal slag removal mold with a sliding structure according to claim 2, characterized in that: The outer surface of the sliding block (5) on one side close to the inner mold (2) is evenly provided with a slag discharge cavity (9), and the slag discharge cavity (9) is designed in a trapezoidal shape. Ventilation pipes (10) are evenly arranged inside the sliding block (5), and the venting pipes (10) are connected to each slag discharge cavity (9), and the venting pipes (10) pass through the outer surface of the sliding block (5). The lower mold (1) is provided with an exhaust port (13) on one side close to the sliding block (5), and the exhaust port (13) is located between the slide grooves (6).

5. The internal slag removal mold with a sliding structure according to claim 1, characterized in that: A push-opening mechanism is provided between the inner mold (2) and the sliding block (5), and the sliding block (5) and the inner mold (2) are automatically disengaged through the push-opening mechanism.

6. The internal slag removal mold with a sliding structure according to claim 5, characterized in that: The ejection mechanism comprises: an ejection column (11), the outer surface of the ejection column (11) passes through the outer surface of the sliding block (5), and the sliding block (5) and the ejection column (11) are slidably connected, a spring (12) is arranged between the ejection column (11) and the sliding block (5), and the spring (12) is located inside the sliding block (5), and the side surface of the ejection column (11) is in contact with the side surface of the inner mold (2).

7. The internal slag removal mold with a sliding structure according to claim 3, characterized in that: An ejector pin (14) is slidably mounted inside the casting cavity (3), and the ejector pin (14) penetrates the outer surface of the lower mold (1), and the outer surface of the inner mold (2) fits the outer surface of the upper mold (15).

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