Polishing device for casting machinery

Abstract

The utility model relates to the technical field of casting polishing, and particularly discloses a polishing device for casting machinery, which comprises a shell, a polishing table is arranged in the shell, and a polishing mechanical arm is mounted in the shell; the dust collection assembly is arranged at the bottom of the shell; the blowing assembly is arranged at the bottom of the shell. In the casting polishing process, dust generated in the polishing process is sucked into the bottom of the polishing table from the two sides of the polishing table and internal holes through negative pressure airflow and collected, the dust generated in the polishing process is effectively captured, filtered out and collected, and pollution of the dust to the environment and harm of the dust to the health of operators are reduced; and abrasion of dust to the polishing mechanical arm is reduced, and the service life of the polishing mechanical arm is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of casting grinding, in particular to a grinding device for casting machinery. Background Art

[0002] In the foundry machinery industry, there are often defects such as burrs and scale on the surface of castings, which need to be polished to improve their surface finish and precision. Traditional polishing methods mostly rely on manual handheld polishing tools, which have problems such as low polishing efficiency, unstable polishing quality, and high labor intensity for workers. With the development of automation technology, some automated polishing equipment has appeared on the market.

[0003] In the prior art, a large amount of dust is generated when the castings are polished, which causes great pollution to the working environment and affects the service life of the equipment. Frequent cleaning is required, which is not only time-consuming and labor-intensive, but also poses a threat to the health of the operators. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a grinding device for a casting machine, which solves the problem that a large amount of dust is generated when grinding castings, causing great pollution to the working environment and affecting the service life of the equipment. Frequent cleaning is required, which is not only time-consuming and labor-intensive, but also poses a threat to the health of the operators.

[0005] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a grinding device for casting machinery, including a shell, a grinding table is arranged inside the shell, and the grinding device for casting machinery also includes: a grinding mechanical arm, the grinding mechanical arm is installed inside the shell; a dust suction component is arranged inside the shell; a blowing component is arranged at the bottom of the shell; a dust exhaust component is arranged at the bottom of the shell; wherein, the grinding mechanical arm grinds the casting placed in the shell, the dust suction component sucks the dust generated by the grinding of the casting to the bottom of the grinding table, the blowing component blows the filter cartridge of the dust suction component to maintain the air circulation efficiency, the dust exhaust component collects the dust generated by grinding, and the grinding table is used to support the casting.

[0006] Preferably, the dust suction assembly includes: a bottom suction unit, which is arranged at the bottom of the grinding table; a side suction unit is arranged at the top of the grinding table; and an exhaust unit is arranged at one side of the bottom suction unit; wherein, negative pressure is generated by the exhaust unit, and the grinding dust is sucked out from the bottom and top sides of the grinding table through the bottom suction unit and the side suction unit.

[0007] Preferably, the bottom suction unit includes: dust suction holes, which are equidistantly arranged inside the grinding table; a dust suction box is fixedly connected to the bottom of the grinding table; a filter cartridge is installed inside the dust suction box; a connecting box is fixedly connected to one side of the dust suction box and is connected to the filter cartridge; wherein, the dust suction box generates negative pressure under the action of the exhaust unit, and the grinding dust enters the interior of the dust suction box with the air flow through the dust suction holes for collection, and is filtered through the filter cartridge, and the connecting box is used to connect the filter cartridge and the exhaust unit.

[0008] Preferably, the side suction unit includes: a side suction box, which is fixedly connected to both sides of the top of the grinding table and is connected to the dust suction box; a partition is fixedly connected to the inside of the side suction box; a dust suction hole is opened inside the partition; wherein, air is sucked in on both sides of the grinding table, and the grinding dust is sucked into the inside of the dust suction box through the side suction box, and the dust suction holes opened inside the partition make the airflow sucked into the side suction box evenly dispersed.

[0009] Preferably, the exhaust unit includes: a fan, which is arranged on one side of the shell and connected with the connecting box; an exhaust duct is installed at the output end of the fan; a slide rail is fixedly connected to the inner wall of the connecting box; a baffle is movably connected to the inside of the slide rail; an electric push rod is installed inside the connecting box, and the output end is fixedly connected to the baffle; wherein, the input end of the fan is connected with the connecting box, and under the action of the fan, a negative pressure is generated inside the dust collection box and discharged through the exhaust duct, and the connecting port of the fan and the connecting box can be closed by controlling the electric push rod to push the baffle to move in the slide rail.

[0010] Preferably, the blowing assembly includes: a blowing pipe, which is installed inside the filter cartridge; a gas tank is arranged at the bottom of the shell; a pulse valve is respectively connected to the blowing pipe and the gas tank; a first air pressure sensor is installed on the top of the connecting box; and a second air pressure sensor is installed on one side of the dust collecting box; wherein, the pulse opening and closing of the pulse valve is controlled so that the gas is transported from the gas tank to the blowing pipe and released inside the filter cartridge, and the dust adsorbed on the surface of the filter cartridge is blown to the bottom of the dust collecting box, and the first air pressure sensor and the second air pressure sensor respectively sense the air pressure of the connecting box and the dust collecting box.

[0011] Preferably, the dust exhaust assembly includes: a dust exhaust port, which is arranged at the bottom of the dust collection box; a soft connection fixedly connected to the bottom of the dust exhaust port; a collection box is arranged below the dust exhaust port and is connected to the soft connection; wherein the dust exhaust port is connected to the collection box through the soft connection, so that the dust entering the dust collection box is collected in the collection box.

[0012] Preferably, the bottom of the collection box is equidistantly rotatably connected with moving wheels.

[0013] The utility model provides a grinding device for casting machinery. It has the following beneficial effects: the grinding device for casting machinery, through the cooperation between the shell, the grinding mechanical arm, the dust suction component, the blowing component, the dust exhaust component and the grinding table, in the casting grinding process, uses the negative pressure airflow to make the dust generated in the grinding process be sucked into the bottom of the grinding table from the two sides and the internal holes of the grinding table and collected, can effectively capture the dust generated in the grinding process and filter out and collect it, can reduce the pollution of dust to the environment and the harm to the health of operators, and reduce the wear of dust on the grinding mechanical arm, extend the service life of the grinding mechanical arm, at the same time, by pulse blowing the filter module in the gap between loading and unloading, the dust accumulated on the surface of the filter module is removed, the filtering efficiency of the filter module is restored, the frequency of manual cleaning is reduced, and the overall work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the dust suction component, the blowing component and the dust exhaust component;

[0016] Figure 3 for Figure 2 Schematic diagram of the appearance of the dust box, connection box and filter cartridge;

[0017] Figure 4 for Figure 3 Schematic diagram of the appearance of the middle connection box from another angle;

[0018] Figure 5 for Figure 2 A partial enlarged view of area A.

[0019] In the figure: 1. Shell; 2. Grinding robot arm; 3. Dust suction assembly; 4. Blowing assembly; 5. Dust exhaust assembly; 6. Grinding table; 31. Bottom suction unit; 311. Dust suction hole; 312. Dust suction box; 313. Filter cartridge; 314. Connection box; 32. Side suction unit; 321. Side suction box; 322. Partition; 323. Dust suction hole; 33. Exhaust unit; 331. Fan; 332. Exhaust duct; 333. Slide rail; 334. Baffle; 335. Electric push rod; 41. Blowing pipe; 42. Gas tank; 43. Pulse valve; 44. First air pressure sensor; 45. Second air pressure sensor; 51. Dust exhaust port; 52. Soft connection; 53. Collection box; 531. Moving wheel. DETAILED DESCRIPTION

[0020] 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.

[0021] Depend on Figure 1 It can be seen that a grinding device for a casting machine in this case includes a shell 1, and a grinding table 6 is arranged inside the shell 1. The grinding device for the casting machine also includes: a grinding robot arm 2, which is installed inside the shell 1; a dust suction component 3, which is arranged inside the shell 1; a blowing component 4, which is arranged at the bottom of the shell 1; and a dust exhaust component 5, which is arranged at the bottom of the shell 1; wherein the grinding robot arm 2 grinds the casting placed in the shell 1, the dust suction component 3 sucks the dust generated by the grinding of the casting under the grinding table 6, the blowing component 4 blows the filter cartridge 313 of the dust suction component 3, which is beneficial to maintaining the air circulation efficiency, the dust exhaust component 5 collects the dust generated by grinding, and the grinding table 6 is used to support the casting.

[0022] In the specific implementation process, it is worth pointing out that the shell 1 is the outer shell structure of the grinding device, and the grinding table 6 is the casting grinding station. By inserting the casting fixing bracket into the hole of the grinding table 6, the casting is stably supported and fixed, and it can adapt to castings of different shapes. The grinding robot arm 2 is arranged on the outside of the casting grinding station. By controlling the movement trajectory and grinding force of the grinding robot arm 2, the high-speed rotating grinding wheel at the end of the grinding robot arm 2 is used to grind the surface of the casting to achieve fine grinding of the surface of the casting. The dust suction component 3 uses the negative pressure airflow to suck the dust generated by grinding into the bottom of the grinding table 6, which can effectively capture the dust generated during the grinding process and filter it out, so that the dust generated during the grinding process is collected by the dust exhaust component 5, thereby reducing the pollution of dust to the environment and the harm to the health of operators, and when dust accumulates on the surface of the filter device in large quantities and affects the air circulation, The spraying component 4 performs pulse spraying on the filter device to remove accumulated dust and restore the filtering efficiency of the filter device. Through the cooperation between the shell 1, the grinding robot arm 2, the dust suction component 3, the spraying component 4, the dust exhaust component 5 and the grinding table 6, during the casting grinding process, the negative pressure airflow is used to make the dust generated during the grinding process be sucked into the bottom of the grinding table 6 from the two sides and internal holes of the grinding table 6, and collected by the dust exhaust component 5. The dust generated during the grinding process can be effectively captured and filtered out and collected, reducing the pollution of dust to the environment and the harm to the health of operators, and reducing the wear of dust on the grinding robot arm 2, extending the service life of the grinding robot arm 2. At the same time, the spraying component 4 performs pulse spraying on the filter module in the gap between loading and unloading to remove the dust accumulated on the surface of the filter module, restore the filtering efficiency of the filter module, reduce the frequency of manual cleaning, and improve the overall work efficiency.

[0023] In one practicable manner, see Figure 1 , Figure 2 and Figure 3 The dust suction component 3 includes: a bottom suction unit 31, which is arranged at the bottom of the grinding table 6; a side suction unit 32, which is arranged at the top of the grinding table 6; and an exhaust unit 33, which is arranged at one side of the bottom suction unit 31; wherein, the exhaust unit 33 generates negative pressure, and the grinding dust is sucked out from the bottom and top sides of the grinding table 6 through the bottom suction unit 31 and the side suction unit 32.

[0024] In the specific implementation process, it is worth pointing out that the exhaust unit 33 causes the bottom suction unit 31 at the bottom of the grinding table 6 to continuously generate negative pressure, so that air flows from the top of the grinding table 6 through the holes of the grinding table 6 and the side suction units 32 located on both sides to the space at the bottom of the grinding table 6, and the dust generated by the grinding of the casting is sucked into the bottom space of the grinding table 6 to prevent the dust from spreading into the surrounding air, thereby protecting the health of the operator and reducing the workload of dust cleaning.

[0025] In one practicable manner, see Figure 2 and Figure 3 The bottom suction unit 31 includes: dust suction holes 311, which are equidistantly arranged inside the grinding table 6; a dust suction box 312, which is fixedly connected to the bottom of the grinding table 6; a filter cartridge 313, which is installed inside the dust suction box 312; a connecting box 314, which is fixedly connected to one side of the dust suction box 312 and is connected to the filter cartridge 313; wherein, the dust suction box 312 generates negative pressure under the action of the exhaust unit 33, and the grinding dust enters the interior of the dust suction box 312 with the air flow through the dust suction holes 311 for collection, and is filtered by the filter cartridge 313, and the connecting box 314 is used to connect the filter cartridge 313 and the exhaust unit 33.

[0026] During the specific implementation process, it is worth noting that the exhaust unit 33 and the filter cartridge 313 are connected through the connecting box 314, so that the air in the dust box 312 is discharged outward through the filter cartridge 313 and the connecting box 314, thereby generating negative pressure inside the dust box 312, and the dust suction hole 311 connects the dust box 312 with the top of the grinding table 6. When the dust box 312 generates negative pressure under the action of the exhaust unit 33, the air can circulate into the dust box 312 through the dust suction hole 311, generating airflow at the grinding table 6, thereby allowing the dust generated by grinding to enter the interior of the dust box 312, and the dust is filtered out through the filter cartridge 313, thereby realizing effective collection of dust, ensuring that the dust can be continuously inhaled and filtered, and ensuring the cleanliness of the grinding area and the health and safety of the operators.

[0027] It is understandable that the dust suction through hole 311 can also be used to insert a fixing bracket of the casting to provide a stable support during the grinding process.

[0028] In one practicable manner, see Figure 1 , Figure 2 and Figure 5 The side suction unit 32 includes: a side suction box 321, which is fixedly connected to both sides of the top of the grinding table 6 and is connected to the dust box 312; a partition 322, which is fixedly connected to the inside of the side suction box 321; and a dust suction hole 323, which is opened inside the partition 322; wherein the side suction box 321 is connected to the dust box 312, and air is sucked in on both sides of the grinding table 6, and the grinding dust is sucked into the inside of the dust box 312 through the side suction box 321. The dust suction hole 323 opened inside the partition 322 makes the airflow sucked into the side suction box 321 evenly dispersed, while improving safety.

[0029] During the specific implementation process, it is worth pointing out that the side suction box 321 is installed on both sides of the top of the grinding table 6, with the open end facing the grinding table 6, and the bottom of the side suction box 321 is connected to the dust box 312. When the dust box 312 is in a negative pressure state, negative pressure airflow can also be formed on both sides of the grinding table 6, thereby further improving the suction efficiency of the grinding dust. The dust suction hole 323 opened inside the partition 322 makes the airflow sucked into the side suction box 321 evenly dispersed, thereby improving safety.

[0030] In one practicable manner, see Figure 2 and Figure 4 The exhaust unit 33 includes: a fan 331, which is arranged on one side of the shell 1 and is connected to the connecting box 314; an exhaust pipe 332, which is installed at the output end of the fan 331; a slide rail 333, which is fixedly connected to the inner wall of the connecting box 314; a baffle 334, which is movably connected to the inside of the slide rail 333; an electric push rod 335, which is installed inside the connecting box 314 and the output end is fixedly connected to the baffle 334; wherein the input end of the fan 331 is connected to the connecting box 314, under the action of the fan 331, a negative pressure is generated inside the dust collection box 312, and is discharged through the exhaust pipe 332, and the connecting port of the fan 331 and the connecting box 314 can be closed by controlling the electric push rod 335 to push the baffle 334 to move in the slide rail 333.

[0031] In the specific implementation process, it is worth pointing out that the output end of the fan 331 is connected to the connecting box 314. Through the high-speed rotation of the impeller, the air in the dust box 312 is sucked into the inner side of the filter cartridge 313, and is transported to the fan 331 through the connecting box 314, and then discharged through the exhaust pipe 332, forming an effective air flow ventilation duct, ensuring that a negative pressure environment is formed inside the dust box 312, so that the dust can be effectively sucked in and filtered. When it is necessary to spray and clean the filter cartridge 313, the control system of the grinding device automatically controls the telescopic rod of the electric push rod 335 to extend, so that the baffle 334 moves in the slide rail 333, and the connection port of the fan 331 and the connecting box 314 is closed to prevent the sprayed gas from leaking from the fan 331, so that the sprayed gas acts entirely on the filter cartridge 313, and the efficiency and quality of the spraying and cleaning are guaranteed. The specific models of the fan 331 and the electric push rod 335 are not limited, and they can meet the use requirements.

[0032] In one practicable manner, see Figure 2The spray assembly 4 includes: a spray pipe 41, which is installed inside the filter cartridge 313; a gas tank 42, which is arranged at the bottom of the shell 1; a pulse valve 43, which is respectively connected to the spray pipe 41 and the gas tank 42; a first air pressure sensor 44, which is installed on the top of the connecting box 314; a second air pressure sensor 45, which is installed on one side of the dust collecting box 312; wherein, the pulse opening and closing of the pulse valve 43 is controlled so that the high-pressure gas is transported from the gas tank 42 to the spray pipe 41, and released inside the filter cartridge 313, and the dust adsorbed on the surface of the filter cartridge 313 is sprayed to the bottom of the dust collecting box 312, and the first air pressure sensor 44 and the second air pressure sensor 45 respectively sense the air pressure of the dust collecting box 312 and the connecting box 314.

[0033] In the specific implementation process, it is worth pointing out that the air pressure of the connecting box 314 and the dust box 312 is sensed by the first air pressure sensor 44 and the second air pressure sensor 45, and the sensing signal is transmitted to the control system of the grinding device in real time. When a lot of dust accumulates on the surface of the filter cartridge 313, the air pressure difference between the dust box 312 and the connecting box 314 exceeds the preset value, reminding the staff to perform the blowing operation. High-pressure gas is stored inside the gas tank 42. When the filter cartridge 313 is sprayed, the control system of the grinding device automatically controls the pulse valve 43 to open and close the pulses, so that the high-pressure gas is transported from the gas tank 42 to the blowing pipe 41 and released inside the filter cartridge 313, forming a spray on the inner side of the filter cartridge 313, so that the dust adsorbed on the surface of the filter cartridge 313 is separated to the bottom of the dust box 312, thereby restoring the filtering capacity of the filter cartridge 313 and improving the convenience of dust cleaning.

[0034] It is understandable that the control system of the grinding device can determine the timing of the spraying according to the air pressure difference between the dust box 312 and the connecting box 314, and can also perform the spraying operation within the gap between loading and unloading, or at a fixed time and frequency.

[0035] In one practicable manner, see Figure 2 The dust exhaust component 5 includes: a dust exhaust port 51, which is arranged at the bottom of the dust collection box 312; a soft connection 52, which is fixedly connected to the bottom of the dust exhaust port 51; a collection box 53, which is arranged below the dust exhaust port 51 and is connected with the soft connection 52; wherein the dust exhaust port 51 is connected to the collection box 53 through the soft connection 52, so that the dust entering the dust collection box 312 is collected in the collection box 53.

[0036] In the specific implementation process, it is worth pointing out that a frame matching the collection box 53 is provided at the bottom of the soft connection 52 to ensure the sealing during the dust collection process. The collection box 53 is placed under the dust box 312, and the frame at the bottom of the soft connection 52 is inserted and fixed by the top of the collection box 53. The dust dropped from the dust box 312 is collected from the dust outlet 51, through the soft connection 52, and into the interior of the collection box 53, thereby realizing centralized treatment and recycling of dust.

[0037] In one practicable manner, see Figure 2 The bottom of the collecting box 53 is equidistantly rotatably connected with a moving wheel 531.

[0038] In the specific implementation process, it is worth pointing out that the moving wheels 531 are used to improve the mobility of the collection box 53.

[0039] Working principle: When the casting workpiece is being polished, the fan 331 continuously extracts the air in the dust box 312 through the connecting box 314 and the filter cartridge 313, and discharges it through the exhaust pipe 332, forming a negative pressure inside the dust box 312, so that the air on the top of the polishing table 6 flows to the dust box 312 through the dust suction hole 311 and the side suction box 321, and the dust generated during the polishing process is sucked into the interior of the dust box 312. Most of the dust enters the collection box 53 below the dust box 312 under the action of gravity, and a small amount of dust is adsorbed on the outside of the filter cartridge 313 to prevent the dust from being discharged into the surrounding environment through the exhaust pipe 332. The dust generated during the polishing process can be effectively captured, filtered out and collected, reducing the pollution of dust to the environment and the harm to the health of operators, and reducing the wear of dust on the polishing robot arm 2. To extend the service life of the grinding robot arm 2, when a lot of dust accumulates on the surface of the filter cartridge 313, the air pressure difference between the dust collection box 312 and the connection box 314 exceeds the preset value, reminding the staff to perform a blowing operation. When the filter cartridge 313 is blown, the control system of the grinding device automatically controls the electric push rod 335 to push the baffle 334 to close the connection port between the fan 331 and the connection box 314, and automatically controls the pulse valve 43 to open and close the pulse, so that the high-pressure gas is transported from the gas tank 42 to the blowing pipe 41, and released inside the filter cartridge 313, forming a spray on the inner side of the filter cartridge 313, so that the dust adsorbed on the surface of the filter cartridge 313 is separated to the bottom of the dust collection box 312, so as to achieve efficient cleaning of the dust adsorbed on the surface of the filter cartridge 313, restore the filtering efficiency of the filter cartridge 313, reduce the frequency of manual cleaning, and improve the overall work efficiency.

[0040] 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 grinding device for a casting machine, comprising a housing (1), characterized in that: A grinding table (6) is arranged inside the housing (1), and the grinding device for a casting machine further comprises: A grinding robot arm (2) installed inside the housing (1); A dust collection component (3) is arranged inside the shell (1); A spray assembly (4) is arranged at the bottom of the housing (1); A dust removal component (5) is arranged at the bottom of the housing (1); The grinding robot arm (2) grinds the casting placed in the shell (1); the dust suction component (3) sucks the dust generated by the grinding of the casting into the bottom of the grinding table (6); the blowing component (4) blows the filter cartridge (313) of the dust suction component (3) to help maintain air circulation efficiency; the dust exhaust component (5) collects the dust generated by grinding; and the grinding table (6) is used to support the casting.

2. A grinding device for a casting machine according to claim 1, characterized in that: The dust collection component (3) comprises: A bottom suction unit (31) is arranged at the bottom of the polishing table (6); A side suction unit (32) is arranged on the top of the grinding table (6); An exhaust unit (33) is arranged on one side of the bottom suction unit (31); Wherein, negative pressure is generated by the exhaust unit (33), and grinding dust is sucked out from the bottom and top sides of the grinding table (6) through the bottom suction unit (31) and the side suction unit (32).

3. A grinding device for a casting machine according to claim 2, characterized in that: The bottom suction unit (31) comprises: Dust suction through holes (311) are equidistantly arranged inside the polishing table (6); A dust collection box (312) fixedly connected to the bottom of the grinding table (6); A filter cartridge (313) installed inside the dust collection box (312); A connecting box (314) fixedly connected to one side of the dust collecting box (312) and in communication with the filter cartridge (313); The dust collection box (312) generates negative pressure under the action of the exhaust unit (33), and the grinding dust is collected along with the air flow into the interior of the dust collection box (312) through the dust collection through hole (311), and filtered through the filter cartridge (313), and the connection box (314) is used to connect the filter cartridge (313) and the exhaust unit (33).

4. A grinding device for a casting machine according to claim 3, characterized in that: The side suction unit (32) comprises: A side suction box (321) is fixedly connected to two sides of the top of the grinding table (6) and is in communication with the dust suction box (312); A partition plate (322) fixedly connected to the inside of the side suction box (321); A dust suction hole (323) is provided inside the partition (322); Air is sucked in at both sides of the grinding table (6), and grinding dust is sucked into the interior of the dust suction box (312) through the side suction box (321). The dust suction holes (323) provided inside the partition (322) allow the airflow sucked into the side suction box (321) to be evenly dispersed.

5. A grinding device for a casting machine according to claim 4, characterized in that: The exhaust unit (33) comprises: A fan (331) is arranged on one side of the housing (1) and is connected to the connection box (314); An exhaust pipe (332) installed at the output end of the fan (331); A slide rail (333) fixedly connected to the inner wall of the connection box (314); A baffle (334) movably connected to the interior of the slide rail (333); An electric push rod (335) is installed inside the connection box (314), and an output end is fixedly connected to the baffle (334); The input end of the fan (331) is connected to the connection box (314); under the action of the fan (331), negative pressure is generated inside the dust collection box (312) and discharged through the exhaust pipe (332); and by controlling the electric push rod (335) to push the baffle (334) to move inside the slide rail (333), the connection port between the fan (331) and the connection box (314) can be closed.

6. A grinding device for a casting machine according to claim 5, characterized in that: The blowing assembly (4) comprises: A blowing pipe (41) installed inside the filter cartridge (313); A gas tank (42) disposed at the bottom of the housing (1); A pulse valve (43) is connected to the blowing pipe (41) and the gas tank (42) respectively; A first air pressure sensor (44) is installed on the top of the connection box (314); A second air pressure sensor (45) installed on one side of the dust collection box (312); The pulse valve (43) is controlled to open and close pulses, so that gas is transported from the gas tank (42) to the blowing pipe (41) and released inside the filter cartridge (313), so that dust adsorbed on the surface of the filter cartridge (313) is blown to the bottom of the dust collection box (312), and the first air pressure sensor (44) and the second air pressure sensor (45) respectively sense the air pressure of the connection box (314) and the dust collection box (312).

7. A grinding device for a casting machine according to claim 6, characterized in that: The dust exhaust component (5) comprises: A dust discharge port (51) is arranged at the bottom of the dust collection box (312); A flexible connection (52) fixedly connected to the bottom of the dust exhaust port (51); A collection box (53) is disposed below the dust discharge port (51) and is cooperatively connected to the flexible connection (52); The dust discharge port (51) is connected to the collection box (53) via the flexible connection (52), so that the dust entering the dust collection box (312) is collected in the collection box (53).

8. A grinding device for a casting machine according to claim 7, characterized in that: The bottom of the collection box (53) is equidistantly rotatably connected to moving wheels (531).

Images