Low-pressure casting equipment for flywheel casting

Abstract

The utility model relates to the technical field of low-pressure casting, and particularly discloses a low-pressure casting device for flywheel casting, which comprises a support, a workbench is fixedly arranged below the support, a heat preservation bin is arranged below the workbench, a crucible is arranged in the heat preservation bin, and the crucible is connected with the support through a connecting rod. A first mold assembly and a second mold assembly are arranged in the support, the second mold assembly is located on the right side of the first mold assembly, and a cooling mechanism used for cooling is arranged on the support. The first mold assembly and the second mold assembly each comprise a lower mold and an upper mold located above the lower mold, the bottom of each lower mold is connected with a liquid inlet pipe, a plug is installed in each liquid inlet pipe, and an adjusting screw rod is fixedly arranged on one side of each plug. The first die assembly and the second die assembly are arranged and matched with the cooling mechanism, alternate manufacturing of two flywheel sets is achieved, time is saved, and flywheel manufacturing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-pressure casting, in particular to a low-pressure casting device for flywheel casting. Background Art

[0002] A flywheel usually refers to a heavy wheel installed on a machine that uses rotational inertia to store and release energy and improve the smoothness of the machine's rotation. When making a flywheel, low-pressure casting can be used. The molten metal liquid is poured into a sealed crucible, and dry compressed air is introduced into the crucible. The molten metal rises along the riser under the action of gas pressure and fills the cavity of the flywheel mold. After the molten metal crystallizes and solidifies under pressure, the flywheel mold can be opened and the flywheel casting can be taken out.

[0003] For example, in the existing disclosed technical solution, a low-pressure casting equipment for flywheel casting disclosed in announcement number CN211101532U includes a base, an insulation furnace and a workbench, a crucible is fixed in the insulation furnace, the top of the insulation furnace is sealed with a furnace cover, a riser tube penetrating into the crucible is fixed at the center of the furnace cover, a lower mold is provided at the middle position of the upper surface of the workbench, a cavity connected to the top of the riser tube is provided in the lower mold, the outer cover of the lower mold is provided with a protective cover fixed on the workbench, the output end of the cylinder is connected to the lower pressure plate through a piston rod, the bottom of the lower pressure plate is provided with an upper mold symmetrical to the lower mold, and a cooling air blower is installed on the rear wall of the protective cover.

[0004] When the above technical solution is actually implemented, although a cooling fan is provided, the production of the second set of flywheels cannot be realized during the cooling process, which affects the flywheel production efficiency. Summary of the Invention

[0005] The purpose of the present utility model is to provide a low-pressure casting device for flywheel casting, which can realize the alternating production of two groups of flywheels by setting two groups of molds, a first mold assembly and a second mold assembly, in conjunction with a cooling mechanism, thereby saving time and improving the flywheel production efficiency, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a low-pressure casting device for flywheel casting, comprising a bracket, a workbench fixedly disposed below the bracket, a heat preservation chamber disposed below the workbench, a crucible mounted inside the heat preservation chamber, a first mold assembly and a second mold assembly disposed inside the bracket, the second mold assembly being located to the right of the first mold assembly, and a cooling mechanism for cooling the temperature being disposed on the bracket;

[0007] The first mold assembly and the second mold assembly both include a lower mold and an upper mold located above the lower mold. The bottom of the lower mold is connected to a liquid inlet pipe, and a plug is installed inside the liquid inlet pipe. An adjusting screw is fixedly provided on one side of the plug, and a mold closing hydraulic cylinder is fixedly provided on the top of the upper mold.

[0008] Preferably, the end of the adjusting screw passes through the workbench and is connected to a knob.

[0009] Preferably, the first mold assembly and the second mold assembly both further include mounting holes provided inside the upper mold, and semiconductor cooling fins are fixedly provided on both the front and rear sides of the upper mold.

[0010] Preferably, the bottom of the liquid inlet pipe is located inside the crucible, and the heat preservation chamber is further provided with an air inlet pipe for air intake and a liquid guide pipe for replenishing the molten metal.

[0011] Preferably, the cooling mechanism includes a second water tank fixed to the top of the bracket, and a first water tank fixed to the rear end of the bracket.

[0012] Preferably, the cooling mechanism further comprises a cooling pipe installed inside the mounting hole, and a water inlet pipe is provided at one end of the cooling pipe, and a water outlet pipe is connected to the other end of the cooling pipe.

[0013] Preferably, one group of the cooling pipes is connected to the second water tank through a water inlet pipe, and another group of the cooling pipes is connected to the first water tank through another group of water inlet pipes.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up two sets of molds, the first mold assembly and the second mold assembly, the cooling mechanism can be coordinated to realize the alternating production of two sets of flywheels, saving time and improving the efficiency of flywheel production;

[0016] 2. Through the cooling mechanism, including two sets of water tanks, water recycling is achieved with the cooperation of the water inlet pipe, cooling pipe and water outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 This is a schematic diagram of the half-section structure of the lower mold of the utility model;

[0020] Figure 3 This is a schematic diagram of the half-section structure of the upper mold of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the cooling pipe of the present invention.

[0022] Description of reference numerals:

[0023] 1. Bracket; 2. Workbench; 3. First mold assembly; 301. Lower mold; 302. Upper mold; 303. Knob; 304. Adjusting screw; 305. Plug; 306. Liquid inlet pipe; 307. Mounting hole; 308. Semiconductor refrigeration plate; 4. Cooling mechanism; 401. First water tank; 402. Second water tank; 403. Water inlet pipe; 404. Cooling pipe; 405. Water outlet pipe; 5. Second mold assembly; 6. Insulation chamber; 7. Clamping hydraulic cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides a technical solution:

[0026] See also Figures 1 to 4 A low-pressure casting device for flywheel casting includes a bracket 1, a workbench 2 is fixedly provided below the bracket 1, and a heat preservation chamber 6 is provided below the workbench 2. A crucible is installed inside the heat preservation chamber 6. A first mold assembly 3 and a second mold assembly 5 are provided inside the bracket 1. The second mold assembly 5 is located to the right of the first mold assembly 3. A cooling mechanism 4 for cooling is provided on the bracket 1.

[0027] The first mold assembly 3 and the second mold assembly 5 both include a lower mold 301 and an upper mold 302 located above the lower mold 301. The bottom of the lower mold 301 is connected to a liquid inlet pipe 306, and a plug 305 is installed inside the liquid inlet pipe 306. An adjusting screw 304 is fixedly provided on one side of the plug 305, and a mold closing hydraulic cylinder 7 is fixedly provided on the top of the upper mold 302.

[0028] By adopting the above technical solution, by setting up two groups of molds, the first mold assembly 3 and the second mold assembly 5, the two groups of flywheels can be produced simultaneously. The molten metal in the crucible enters between the lower mold 301 and the upper mold 302 through the liquid inlet pipe 306, and solidifies after being cooled by the cooling mechanism 4. The first mold assembly 3 and the second mold assembly 5 can also be closed in turn as needed. When the flywheel in the first mold assembly 3 is produced, the liquid inlet pipe 306 of the second mold assembly 5 is blocked. When the flywheel in the first mold assembly 3 solidifies, the liquid inlet pipe 306 of the second mold assembly 5 is opened to allow liquid to be introduced, thereby realizing the alternating production of the two groups of flywheels, saving time and improving the efficiency of flywheel production.

[0029] Specifically, such as Figure 4 As shown, the end of the adjusting screw 304 passes through the workbench 2 and is connected to the knob 303. The first mold assembly 3 and the second mold assembly 5 also include mounting holes 307 opened inside the upper mold 302. Semiconductor cooling fins 308 are fixedly installed on the front and back sides of the upper mold 302. The bottom of the liquid inlet pipe 306 is located inside the crucible. The heat preservation chamber 6 is also provided with an air inlet pipe for air intake and a liquid guide pipe for replenishing the molten metal.

[0030] The cooling mechanism 4 includes a second water tank 402 fixed on the top of the bracket 1, and a first water tank 401 fixed on the rear end of the bracket 1. The cooling mechanism 4 also includes a cooling pipe 404 installed inside the mounting hole 307, and a water inlet pipe 403 is provided at one end of the cooling pipe 404, and a water outlet pipe 405 is connected to the other end of the cooling pipe 404. One group of cooling pipes 404 is connected to the second water tank 402 through the water inlet pipe 403, and another group of cooling pipes 404 is connected to the first water tank 401 through another group of water inlet pipes 403.

[0031] By adopting the above technical solution, by turning the knob 303, the knob 303 can drive the adjusting screw 304 to rotate. As the adjusting screw 304 moves, the passage of the liquid inlet pipe 306 can be blocked, and the molten metal cannot enter the first mold assembly 3 or the second mold assembly 5 through the liquid inlet pipe 306. When the flywheel needs to be cooled, the water pump installed on the water outlet pipe 405 can be started. When the first mold assembly 3 is cooled, the water inlet pipe 403 on the first mold assembly 3 pumps the water in the first water tank 401 into the cooling pipe 404, and then the water is discharged into the interior of the second water tank 402 through the water outlet pipe 405 connected to the cooling pipe 404. At this time, the water is left to cool in the second water tank 402. When the second mold assembly 5 is cooled, the water inlet pipe 403 on the second mold assembly 5 pumps the water in the second water tank 402 into the cooling pipe 404, and then the water is discharged back into the interior of the first water tank 401 through the water outlet pipe 405 connected to the cooling pipe 404, thereby realizing water recycling.

[0032] Working principle: The mold closing hydraulic cylinder 7 pushes the upper mold 302 to move downward and close the lower mold 301 to achieve the mold closing of the first mold assembly 3, and inputs compressed gas into the heat preservation chamber 6. The metal liquid in the crucible enters the first mold assembly 3 through the liquid inlet pipe 306. At this time, the liquid inlet pipe 306 of the second mold assembly 5 is blocked. The water inlet pipe 403 on the first mold assembly 3 pumps the water in the first water tank 401 into the cooling pipe 404, and then the water is discharged into the interior of the second water tank 402 through the water outlet pipe 405 connected to the cooling pipe 404. When the flywheel in the mold assembly 3 solidifies, the liquid inlet pipe 306 of the second mold assembly 5 is opened to inject liquid. The water inlet pipe 403 on the second mold assembly 5 pumps the water in the second water tank 402 into the cooling pipe 404, and then the water is discharged back into the first water tank 401 through the water outlet pipe 405 connected to the cooling pipe 404. When the first mold assembly 3 injects liquid, the second mold assembly 5 solidifies. When the second mold assembly 5 injects liquid, the first mold assembly 3 solidifies, thereby realizing the alternating production of two groups of flywheels, saving time and improving the efficiency of flywheel production.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-pressure casting device for flywheel casting, comprising a bracket (1), characterized in that: A workbench (2) is fixedly provided below the support (1), and a heat preservation chamber (6) is provided below the workbench (2), a crucible is installed inside the heat preservation chamber (6), a first mold assembly (3) and a second mold assembly (5) are provided inside the support (1), the second mold assembly (5) is located on the right side of the first mold assembly (3), and a cooling mechanism (4) for cooling is provided on the support (1); The first mold assembly (3) and the second mold assembly (5) both comprise a lower mold (301) and an upper mold (302) located above the lower mold (301); a liquid inlet pipe (306) is connected to the bottom of the lower mold (301), and a plug (305) is installed inside the liquid inlet pipe (306); an adjusting screw (304) is fixedly provided on one side of the plug (305); and a mold clamping hydraulic cylinder (7) is fixedly provided on the top of the upper mold (302).

2. A low-pressure casting device for flywheel casting according to claim 1, characterized in that: The end of the adjusting screw (304) passes through the workbench (2) and is connected to a knob (303).

3. The low-pressure casting equipment for flywheel casting according to claim 2, characterized in that: The first mold assembly (3) and the second mold assembly (5) both further include a mounting hole (307) provided inside the upper mold (302), and semiconductor cooling fins (308) are fixedly provided on both the front and rear sides of the upper mold (302).

4. The low-pressure casting equipment for flywheel casting according to claim 3, characterized in that: The bottom of the liquid inlet pipe (306) is located inside the crucible, and the heat preservation chamber (6) is also provided with an air inlet pipe for air intake and a liquid guide pipe for replenishing the molten metal.

5. The low-pressure casting equipment for flywheel casting according to claim 4, characterized in that: The cooling mechanism (4) comprises a second water tank (402) fixed to the top of the bracket (1), and a first water tank (401) fixed to the rear end of the bracket (1).

6. The low-pressure casting equipment for flywheel casting according to claim 5, characterized in that: The cooling mechanism (4) further comprises a cooling pipe (404) installed inside the mounting hole (307), and a water inlet pipe (403) is provided at one end of the cooling pipe (404), and a water outlet pipe (405) is connected to the other end of the cooling pipe (404).

7. The low-pressure casting equipment for flywheel casting according to claim 6, characterized in that: One group of cooling pipes (404) is connected to the second water tank (402) via a water inlet pipe (403), and another group of cooling pipes (404) is connected to the first water tank (401) via another group of water inlet pipes (403).

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