Casting head of aluminum alloy low-pressure casting mold

Abstract

The utility model relates to the technical field of aluminum alloy low-pressure casting mold casting heads, in particular to an aluminum alloy low-pressure casting mold casting head which comprises a casting mold body, a heat insulation structure is arranged in the casting mold body, a disassembly and assembly structure is arranged in the casting mold body, and the heat insulation structure comprises a casting head body. The casting head body is mounted in the casting mold body, the heat insulation sleeve is mounted in the casting head body, the heat insulation layer is arranged in the heat insulation sleeve, the mounting block is fixedly connected to the upper end of the heat insulation sleeve, the mounting bolt is mounted in the mounting block, and the mounting bolt is mounted in the casting head body. According to the casting head of the aluminum alloy low-pressure casting mold, heat insulation blocking can be conducted on high temperature through the heat insulation sleeve, the casting head body is prevented from being damaged, the heat insulation sleeve can be conveniently replaced, and the practicability and protectiveness of the device are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of gating and riser for low-pressure casting molds of aluminum alloys, specifically to a gating and riser for low-pressure casting molds of aluminum alloys. Background Technology

[0002] Low-pressure casting molds are mainly made of high-strength aluminum alloy materials, which have good wear resistance, corrosion resistance and high temperature stability during use. They can ensure the quality and dimensional accuracy of castings, and can make the feeding channels unobstructed during the casting process, so as to produce a good and rapid sequential solidification effect, realizing solidification from the far end to the riser direction, minimizing the occurrence of casting defects, and improving production efficiency and benefits.

[0003] For example, the authorized Chinese utility patent CN202028760U describes a gate assembly structure for a low-pressure casting mold of an aluminum alloy wheel hub. It includes a bottom mold and a gate cup located below the central hole of the bottom mold. The central hole of the bottom mold is a conical hole. The gate sleeve with the conical hole is sandwiched between the lower end face of the central conical hole of the bottom mold and the upper end face of the sprue hole of the gate cup. The upper end of the conical hole of the gate sleeve is connected to the lower end of the central conical hole of the bottom mold, and the lower end of the conical hole of the gate sleeve is connected to the upper end of the sprue hole of the gate cup.

[0004] Existing aluminum alloy low-pressure casting mold gating and risers are prone to damage and corrosion during use due to the frequent injection of high-temperature molten aluminum. Furthermore, the gating and risers are inconvenient to disassemble after damage. Therefore, there is an urgent need for a new type of aluminum alloy low-pressure casting mold gating and riser to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a gating and riser for aluminum alloy low-pressure casting molds, so as to solve the problems mentioned in the background art, which are that the existing gating and risers of aluminum alloy low-pressure casting molds are easily damaged and corroded during use due to the frequent injection of high-temperature aluminum liquid, and that the gating and risers are inconvenient to disassemble and reassemble after damage.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gating and riser for a low-pressure aluminum alloy casting mold, comprising: a casting mold body, wherein a heat insulation structure is provided inside the casting mold body, and a disassembly and assembly structure is provided inside the casting mold body; the heat insulation structure includes a gating and riser body, the gating and riser body is installed inside the casting mold body, a heat insulation sleeve is installed inside the gating and riser body, a heat insulation layer is provided inside the heat insulation sleeve, an installation block is fixedly connected to the upper end of the heat insulation sleeve, and an installation bolt is installed inside the installation block, and the installation bolt is installed inside the gating and riser body.

[0007] Preferably, the casting mold body has an air inlet inside, and the air inlet is used to ventilate and compress cold air.

[0008] Preferably, the gating and riser body has an isolation cavity inside, and the isolation cavity can be connected and communicated with the air inlet.

[0009] Preferably, the disassembly and assembly structure includes a mounting base, which is fixedly connected to the outer wall of the gating and riser body. A connecting block is fixedly connected to the bottom end of the mounting base. The connecting block is inserted into the casting mold body. A rod is inserted into the connecting block. A pull rod is fixedly connected to the upper end of the rod. The end of the rod away from the connecting block is inserted into the cavity. The cavity is opened inside the casting mold body.

[0010] Preferably, a spring is fixedly connected to the end of the insertion rod away from the connecting block, and the end of the spring away from the insertion rod is fixedly connected to the inner wall of the insertion cavity.

[0011] Preferably, a slider is fixedly connected to the side wall of the insertion rod, and the slider is slidably disposed inside the slide groove, which is opened inside the casting mold body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The riser and gating system of this aluminum alloy low-pressure casting mold is equipped with a heat insulation structure. When using this riser and gating system, to prevent the riser body from being easily damaged by high-temperature corrosion, mounting blocks and bolts are used for convenient installation in the inner diameter of the riser body. A heat insulation sleeve can be used for heat insulation, which can reduce the degree of heat corrosion of the riser body. Compressed cold air can be introduced from the air inlet to cool the riser body. Through this design, the riser and gating system of this aluminum alloy low-pressure casting mold can be insulated from high temperatures by the heat insulation sleeve, preventing damage to the riser body. In addition, the heat insulation sleeve can be easily replaced, improving the practicality and protection of the device.

[0014] 2. This aluminum alloy low-pressure casting mold gating and riser is equipped with a disassembly and assembly structure. When using this aluminum alloy low-pressure casting mold gating and riser, if the gating and riser body needs to be replaced, the pull rod can be pulled to move the insert rod away from the connecting block, so that it moves out of the connecting block. The connecting block is released from its limit, and the heat insulation sleeve is pulled upward, which allows for easy disassembly and assembly. When a new gating and riser body needs to be installed, first pull the pull rod to move the insert rod away from the connecting block, and install the new gating and riser body into the casting mold body. At the same time, the connecting block is inserted into the insert rod. At this time, the spring is in a compressed and stored state. Releasing the pull rod allows the spring to automatically move the insert rod into the connecting block for limit, thus completing the convenient installation. Through this design, the gating and riser body of this aluminum alloy low-pressure casting mold can be easily installed as a whole, making it convenient to replace the gating and riser body when it is damaged, thus improving the practicality and convenience of the device. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the structure of this utility model;

[0016] Figure 2 This is a top sectional view of a partial structure of the present invention;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0018] Figure 4 This utility model Figure 1 A magnified structural diagram at point B in the middle.

[0019] In the diagram: 111, casting mold; 2, heat insulation structure; 211, gating and riser body; 212, heat insulation sleeve; 213, mounting block; 214, mounting bolt; 215, air inlet; 216, isolation cavity; 3, disassembly and assembly structure; 311, mounting base; 312, connecting block; 313, insert rod; 314, pull rod; 315, insertion cavity; 316, spring; 317, slider; 318, slide groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 One embodiment provided by this utility model:

[0022] A riser for a low-pressure aluminum alloy casting mold includes: a casting mold body 111, a heat insulation structure 2 inside the casting mold body 111, and a disassembly and assembly structure 3 inside the casting mold body 111. The heat insulation structure 2 includes a riser body 211, which is installed inside the casting mold body 111. A heat insulation sleeve 212 is installed inside the riser body 211, and a heat insulation layer is provided inside the heat insulation sleeve 212. An installation block 213 is fixedly connected to the upper end of the heat insulation sleeve 212, and an installation bolt 214 is installed inside the installation block 213 and installed inside the riser body 211. With this design, when using the riser for the low-pressure aluminum alloy casting mold, in order to avoid the riser body 211 being easily damaged by high-temperature corrosion, a heat insulation sleeve 212 is installed in the inner diameter of the riser body 211 for heat insulation, which can reduce the degree of heat corrosion of the riser body 211.

[0023] Furthermore, the casting mold body 111 has an air inlet 215 inside, which ventilates and compresses cold air. Through this design, compressed cold air can be introduced from the air inlet 215 to cool the gating and riser body 211 and reduce its temperature.

[0024] Furthermore, the gating and riser body 211 has an isolation cavity 216 inside, which can be connected and communicated with the air inlet 215. Through this design, the gating and riser body 211 has an isolation cavity 216 inside, which can inject compressed cold air into the isolation cavity 216. The compressed cold air is directly isolated in the isolation cavity 216, which can achieve the cooling effect without affecting the injection molding effect.

[0025] Furthermore, the disassembly and assembly structure 3 includes a mounting base 311, which is fixedly connected to the outer wall of the riser and gating body 211. A connecting block 312 is fixedly connected to the bottom end of the mounting base 311. The connecting block 312 is inserted into the casting mold body 111. An insert rod 313 is inserted into the connecting block 312. A pull rod 314 is fixedly connected to the upper end of the insert rod 313. The end of the insert rod 313 away from the connecting block 312 is inserted into the cavity 315, which is located inside the casting mold body 111. With this design, when using the aluminum alloy low-pressure casting mold riser and gating body 211, if it is necessary to replace the riser and gating body 211, the pull rod 314 can be pulled to move the insert rod 313 away from the connecting block 312, so that it moves out of the connecting block 312. The connecting block 312 is released from its limit, and the heat insulation sleeve 212 can be pulled upward to easily disassemble and assemble it.

[0026] Furthermore, a spring 316 is fixedly connected to the end of the insertion rod 313 away from the connecting block 312, and the end of the spring 316 away from the insertion rod 313 is fixedly connected to the inner wall of the insertion cavity 315. With this design, when a new gating and riser body 211 needs to be installed, first pull the pull rod 314 to move the insertion rod 313 away from the connecting block 312, and install the new gating and riser body 211 into the casting mold body 111. At the same time, the connecting block 312 is inserted into the insertion rod 313. At this time, the spring 316 is in a compressed and stored state. Release the pull rod 314, and the spring 316 can drive the insertion rod 313 to automatically enter the connecting block 312 for limiting, thus completing the convenient installation.

[0027] Furthermore, a slider 317 is fixedly connected to the side wall of the insertion rod 313. The slider 317 is slidably disposed inside the slide groove 318, which is opened inside the casting mold body 111. Through this design, when the insertion rod 313 moves, the slider 317 slides synchronously inside the slide groove 318, thereby limiting the insertion rod 313 and making its sliding more stable.

[0028] Working principle:

[0029] When using the aluminum alloy low-pressure casting mold for the riser, in order to avoid the riser body 211 being easily damaged by high-temperature corrosion, the riser body 211 is conveniently installed in the inner diameter of the riser body 211 using the mounting block 213 and mounting bolt 214. The heat insulation sleeve 212 can be used for heat insulation, which can reduce the degree of heat corrosion of the riser body 211. Compressed cold air can be introduced from the air inlet 215 to cool the riser body 211 and lower its temperature.

[0030] When using the riser and gating system of this aluminum alloy low-pressure casting mold, if the riser and gating body 211 needs to be replaced, the pull rod 314 can be pulled to move the insert rod 313 away from the connecting block 312, so that it moves out of the connecting block 312. The connecting block 312 is released from its limit, and the heat insulation sleeve 212 is pulled upward to easily disassemble and install it. When a new riser and gating body 211 needs to be installed, first pull the pull rod 314 to move the insert rod 313 away from the connecting block 312, and install the new riser and gating body 211 into the casting mold body 111. At the same time, the connecting block 312 is inserted into the insert rod 313. At this time, the spring 316 is in a compressed and stored state. Release the pull rod 314, and the spring 316 can drive the insert rod 313 to automatically enter the connecting block 312 for limit, thus completing the convenient installation. The operation is now complete.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A gating and riser for an aluminum alloy low-pressure casting mold, comprising: A casting mold body (111) is characterized in that: a heat insulation structure (2) is provided inside the casting mold body (111), and a disassembly structure (3) is provided inside the casting mold body (111). The heat insulation structure (2) includes a gating and riser body (211), which is installed inside the casting mold body (111). A heat insulation sleeve (212) is installed inside the gating and riser body (211), and a heat insulation layer is provided inside the heat insulation sleeve (212). An installation block (213) is fixedly connected to the upper end of the heat insulation sleeve (212), and an installation bolt (214) is installed inside the installation block (213), and the installation bolt (214) is installed inside the gating and riser body (211).

2. The gating system for a low-pressure casting mold of aluminum alloy according to claim 1, characterized in that: The casting mold body (111) has an air inlet (215) inside, and the air inlet (215) is used to ventilate and compress cold air.

3. The gating system for a low-pressure casting mold of aluminum alloy according to claim 1, characterized in that: The gating and riser body (211) has an isolation cavity (216) inside, which can be connected and communicated with the air inlet (215).

4. The gating system for a low-pressure casting mold of aluminum alloy according to claim 1, characterized in that: The disassembly and assembly structure (3) includes a mounting base (311), which is fixedly connected to the outer wall of the gating and riser body (211). A connecting block (312) is fixedly connected to the bottom end of the mounting base (311). The connecting block (312) is inserted into the casting mold body (111). A rod (313) is inserted into the connecting block (312). A pull rod (314) is fixedly connected to the upper end of the rod (313). The end of the rod (313) away from the connecting block (312) is inserted into the cavity (315). The cavity (315) is opened inside the casting mold body (111).

5. The gating system for a low-pressure casting mold of aluminum alloy according to claim 4, characterized in that: A spring (316) is fixedly connected to one end of the insertion rod (313) away from the connecting block (312), and the other end of the spring (316) away from the insertion rod (313) is fixedly connected to the inner wall of the insertion cavity (315).

6. The gating system for a low-pressure casting mold of aluminum alloy according to claim 4, characterized in that: The insert rod (313) is fixedly connected to a slider (317) on its side wall. The slider (317) is slidably disposed inside the slide groove (318), which is located inside the casting mold body (111).

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