Sand sticking prevention device for sand core

Abstract

The utility model relates to the technical field of sand sticking prevention of sand cores, and discloses a sand sticking prevention device of a sand core, which comprises a main body component, the main body assembly comprises a cross beam, the bottom of which is symmetrically provided with core iron; the sand core is arranged below the cross beam, and the sand core is connected with the bottom ends of the two core irons; the breather pipe is arranged in the sand core; a filtering assembly is arranged at one end of the ventilation pipe; when the sand core is used, the purposes of cooling and sand sticking prevention are achieved by introducing air into the sand core, meanwhile, the air entering the sand core is filtered through the compressed air filter, and when the sand core is dismounted, the compressed air filter is dismounted after the corresponding valve is closed and the corresponding sleeve II is separated from the corresponding sleeve I, so that the sand core is dismounted. The safety of the device is improved by filtering air entering the sand core, the compressed air filter can be disassembled without shutdown, the practicability of the device is improved, the operation mode is simple and rapid, and the device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sand core anti-sand sticking, in particular to a sand core anti-sand sticking device. Background Art

[0002] Sand core is the material used to make core in casting production. It is composed of casting sand, sand binder, etc. When making sand core, it is generally necessary to use anti-sand sticking device.

[0003] During the pouring process of the sand core on the market, the molten steel will quickly sinter the sand core, resulting in the sand mold in the mold cavity being unable to be cleaned, and the casting is at risk of being scrapped. For example, the Chinese utility model patent with the public specification of CN216780243U discloses a device for preventing the sand from sticking to the slender sand core for casting. The device delivers gas to the sand mold to allow air to flow inside the sand mold, thereby taking out the heat in the sand mold wrapped by the molten steel, achieving the effect of cooling, and thus achieving the purpose of preventing the sand from sticking. The utility model ensures the surface quality inside the casting cavity and saves labor costs for sand cleaning and grinding.

[0004] The existing anti-sand sticking device for sand core making does not have a good filtering function. For example, the above-mentioned patent can filter the gas entering the sand core by setting a gas purification device to prevent water vapor from entering the cavity during the compressed air flow, which may easily cause an explosion. However, in actual use, it is inconvenient to disassemble and replace the gas purification device, which has certain limitations. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a sand core anti-sand sticking device, which has the advantages of filtering and non-stop disassembly, and solves the problem that the existing sand core anti-sand sticking device does not have a good filtering function.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand core anti-sticking device, including a main body component; the main body component includes: a crossbeam, a core iron is symmetrically arranged at the bottom of which; a sand core is arranged below the crossbeam, and the sand core is connected to the bottom ends of the two core irons; a ventilation pipe is arranged inside the sand core; a filter assembly is arranged at one end of the ventilation pipe, and the filter assembly includes: pipe one, arranged at one end of the ventilation pipe; pipe two, arranged at one side of pipe one; sleeve one, arranged at both ends of pipe one and at both ends of two pipes two; sleeve two, threadedly connected to the inner wall of each sleeve one; a compressed air filter, arranged between pipe one and pipe two, two of which are arranged, and each of the compressed air filters is connected to the two sleeves two on both sides respectively; a valve, symmetrically arranged on the outer walls of pipe one and pipe two; pipe three, arranged on the outer wall of pipe two.

[0009] Preferably, an outer side wall of the sleeve is provided with threads.

[0010] Preferably: a one-way valve is provided on an outer side wall of the pipeline.

[0011] Preferably, the second outer wall of the pipe is rotatably connected to the first sleeve, and the first outer wall of the pipe is rotatably connected to the first inner wall of the sleeve.

[0012] Preferably, the compressed air filter is rotatably connected to the second sleeve.

[0013] Preferably, the filter assembly further comprises a sealing gasket, which is arranged on an inner wall of each sleeve.

[0014] Preferably, flow meters are provided at both ends of the ventilation pipe.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a sand core anti-sand sticking device, which has the following beneficial effects:

[0017] The utility model has the advantages of filtering and non-stop disassembly, when in use, the purpose of cooling and preventing sand sticking is achieved by introducing air into the sand core, and at the same time, the air entering the sand core is filtered by the compressed air filter. When dismantling, the corresponding valve is closed and the corresponding sleeve two is separated from the corresponding sleeve one to realize the disassembly of the compressed air filter, thereby improving the safety of the device by filtering the air entering the sand core, and realizing the disassembly of the compressed air filter without stopping the machine, thereby improving the practicality of the device, and the operation method is simple, fast and easy to use, which solves the problem that the existing anti-sand sticking device for sand core making does not have a good filtering function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure of the filter assembly in the utility model;

[0020] Figure 3 This is a schematic diagram of the connection method of some structures in the filter assembly of the utility model.

[0021] In the figure:

[0022] 1. Main body assembly; 11. Crossbeam; 12. Core iron; 13. Sand core; 14. Ventilation pipe;

[0023] 2. Filter assembly; 21. Pipeline one; 22. Pipeline two; 23. Sleeve one; 24. Sleeve two; 25. Compressed air filter; 26. Valve; 27. Pipeline three; 28. Sealing gasket. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1

[0026] See also Figure 1-3A sand core anti-sticking device comprises a main body component 1; the main body component 1 comprises: a crossbeam 11, a core iron 12 is symmetrically arranged at the bottom of the crossbeam 11; a sand core 13 is arranged below the crossbeam 11, and the sand core 13 is connected to the bottom ends of the two core irons 12; a vent pipe 14 is arranged inside the sand core 13; a filter component 2 is arranged at one end of the vent pipe 14, and the filter component 2 comprises: a pipe 1 21, arranged at one end of the vent pipe 14; a pipe 22, arranged on one side of the pipe 1 21; a sleeve 1 23, arranged at both ends of the pipe 1 21 and at both ends of the two pipes 22; a sleeve 24, threadedly connected to the inner side wall of each sleeve 1 23; a compressed air filter 25, arranged between the pipe 1 21 and the pipe There are two of them between the pipe 1 and the pipe 22, and each of the compressed air filters 25 is connected to the two sleeves 24 on both sides; the valve 26 is symmetrically arranged on the outer walls of the pipe 1 and the pipe 2; the pipe 3 27 is arranged on the outer wall of the pipe 22; the outer wall of the sleeve 1 23 is threaded; a one-way valve is arranged on the outer wall of the pipe 1 21; the outer wall of the pipe 22 is rotatably connected to the sleeve 1 23, and the outer wall of the pipe 1 21 is rotatably connected to the inner wall of the sleeve 1 23; the compressed air filter 25 is rotatably connected to the sleeve 2 24; the filter assembly 2 also includes: a sealing gasket 28, which is arranged on the inner wall of each sleeve 1 23; flow meters are arranged at both ends of the ventilation pipe 14.

[0027] When in use, open the multiple valves 26 on the outer side walls of the pipe 1 21 and the pipe 2 22, connect one end of the pipe 3 27 to the compressed air supply source, so that the compressed air passes through the pipe 3 27, the pipe 2 22, the compressed air filter 25 and the pipe 1 21 in sequence and enters the ventilation pipe 14. After confirming that the ventilation of the ventilation pipe 14 is normal, air flows inside the sand core 13 to bring out the heat of the sand core 13 wrapped in molten steel, thereby achieving the effect of cooling and preventing sand from sticking. The compressed air filter 25 removes moisture and impurities from the air entering the sand core 13 to prevent water vapor from entering the mold cavity during the compressed air flow, which may easily cause an explosion. When it is necessary to remove the specified compressed air filter 25, close the two valves 26 on both sides of the corresponding compressed air filter 25, and then rotate the two sleeves 24 on both sides of the corresponding compressed air filter 25 at the same time, so that the two sleeves 24 slide out of the two sleeves 1 23 at the same time, and the removal of the compressed air filter 25 is completed. Uninstall, and vice versa to achieve the installation of the compressed air filter 25; after the compressed air filter 25 is disassembled, the sealing cover is matched with the thread on the outer wall of the sleeve 1 23 by threaded connection, so as to have a dust-proof effect on the pipe 1 21 and the pipe 2 22; when in use, it is only necessary to rotate the valve 26 on the right side of the corresponding compressed air filter 25 to achieve the disassembly of the compressed air filter 25, thereby improving the disassembly efficiency; when in use, the two sleeves 24 can be rotated at the same time to achieve disassembly, and the two sleeves 1 23 can be rotated in sequence to separate the sleeve 1 23 and the sleeve 2 24 to achieve disassembly; when in use, the corresponding multiple sleeves 24 can be rotated in sequence to achieve the disassembly of the compressed air filter 25; when in use, the sleeve 1 23 and the sleeve 2 24 are threadedly connected to improve the sealing effect; when in use, the flow rate of air entering the ventilation pipe 14 and the flow rate of air discharged from the inside of the ventilation pipe 14 are monitored by the flow meter, so as to determine whether the ventilation pipe 14 needs to be replaced.

[0028] 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. A sand core anti-sand sticking device, comprising a main component (1); the main component (1) comprises: A crossbeam (11) having a core iron (12) symmetrically arranged at the bottom thereof; A sand core (13) is arranged below the crossbeam (11), and the sand core (13) is connected to the bottom ends of the two core irons (12); A vent pipe (14) is arranged inside the sand core (13); The invention is characterized in that: a filter assembly (2) is provided at one end of the ventilation pipe (14), and the filter assembly (2) comprises: Pipe 1 (21), arranged at one end of the ventilation pipe (14); Pipeline 2 (22), arranged on one side of the pipeline 1 (21); Sleeve 1 (23), arranged at both ends of the pipe 1 (21) and both ends of the two pipes 2 (22); Sleeve 2 (24), threadedly connected to the inner wall of each sleeve 1 (23); A compressed air filter (25) is arranged between the first pipe (21) and the second pipe (22), and two compressed air filters (25) are provided, and two sides of each compressed air filter (25) are respectively connected to the two second sleeves (24); Valves (26) are symmetrically arranged on the outer side walls of the first pipe (21) and the second pipe (22); Pipeline three (27) is arranged on the outer wall of pipeline two (22).

2. A sand core anti-sand sticking device according to claim 1, characterized in that: The outer wall of the sleeve 1 (23) is provided with threads.

3. A sand core anti-sand sticking device according to claim 2, characterized in that: A one-way valve is arranged on the outer wall of the pipeline 1 (21).

4. A sand core anti-sand sticking device according to claim 3, characterized in that: The outer wall of the second pipe (22) is rotatably connected to the first sleeve (23), and the outer wall of the first pipe (21) is rotatably connected to the inner wall of the first sleeve (23).

5. A sand core anti-sand sticking device according to claim 4, characterized in that: The compressed air filter (25) is rotatably connected to the second sleeve (24).

6. A sand core anti-sand sticking device according to claim 5, characterized in that: The filter assembly (2) further comprises: A sealing gasket (28) is arranged on the inner side wall of each of the sleeves (23).

7. The sand core anti-sand sticking device according to claim 1, characterized in that: Flow meters are provided at both ends of the ventilation pipe (14).

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