Sand blasting equipment

Abstract

The invention discloses sand blasting equipment which comprises a sand blasting chamber, a bearing mechanism, a spray gun mechanism and a sand supply mechanism, the sand blasting chamber is provided with a sand blasting space, the bearing mechanism comprises a rotatable bearing part capable of moving inside and outside the sand blasting space, and the spray gun mechanism comprises a first movable spray gun, a second movable spray gun and a third movable spray gun. The first spray gun, the second spray gun and the third spray gun spray sand towards the first face, the second face and the outer side face of a workpiece correspondingly, the sand supply mechanism comprises a sand sweeping pipeline, a cyclone separator and a sand flow divider, one end of the sand sweeping pipeline communicates with the sand blasting space, and the other end of the sand sweeping pipeline communicates with a feeding port of the cyclone separator. The sand flow divider is arranged in the sand blasting space, a material inlet of the sand flow divider is communicated with a material outlet of the cyclone separator, and material distribution ports of the sand flow divider are respectively communicated with the first spray gun, the second spray gun and the third spray gun. According to the sand blasting equipment, simultaneous sand blasting on the three faces of the workpiece and full-area sand blasting on the workpiece are achieved, and the working efficiency and the sand blasting yield are improved.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece sandblasting devices, and in particular to a sandblasting device. Background Art

[0002] In actual production and processing, it is usually necessary to sandblast the workpiece to make it meet production requirements. At present, a spray gun is usually used to sandblast the workpiece. However, in traditional sandblasting, one spray gun is used to sandblast the workpiece. Since the front, back, side and entire area of ​​the workpiece need to be sandblasted, it is necessary to manually load and unload the workpiece multiple times to adjust the relative position between the workpiece and the spray gun, so as to sandblast the front, back, side and entire area of ​​the workpiece, resulting in high labor intensity and low operating efficiency. In addition, since frequent loading and unloading is required, the placement of the workpiece is different each time, which leads to unstable sandblasting quality and affects the sandblasting yield. Summary of the invention

[0003] In view of the above, it is necessary to propose a sandblasting device to achieve simultaneous sandblasting of three surfaces of a workpiece and sandblasting of the entire workpiece, thereby improving operating efficiency and sandblasting yield.

[0004] The embodiment of the present application provides a sandblasting device for spraying sand toward a first surface of a workpiece, a second surface disposed opposite to the first surface, and an outer surface connected between the first surface and the second surface, comprising:

[0005] A sandblasting room, which has a space for sandblasting;

[0006] A bearing mechanism is arranged in the sandblasting room, comprising a bearing member that can move and rotate in and outside the sandblasting space, and the bearing member is used to bear and drive the workpiece to rotate;

[0007] a spray gun mechanism, arranged in the sandblasting space, comprising a movable first spray gun, a second spray gun and a third spray gun, wherein the first spray gun is used to spray sand material toward the first surface, the second spray gun is used to spray sand material toward the second surface, and the third spray gun is used to spray sand material toward the outer surface, the first spray gun and the second spray gun are symmetrically arranged, and the first spray gun and the second spray gun are located on the same side of the third spray gun;

[0008] A sand supply mechanism comprises a return sand pipe, a cyclone separator and a sand material diverter, wherein one end of the return sand pipe is connected to the sand blasting chamber and communicated with the sand blasting space, the other end of the return sand pipe is communicated with a feed port of the cyclone separator, the cyclone separator is arranged in the sand blasting chamber, the sand material diverter is arranged in the sand blasting space and the feed port of the sand material diverter is communicated with a feed port of the cyclone separator, the diverting port of the sand material diverter is respectively communicated with the first spray gun, the second spray gun and the third spray gun, wherein the sand in the sand blasting space flows back to the cyclone separator through the return sand pipe, flows into the sand material diverter after separation and processing by the cyclone separator, and is respectively diverted to the first spray gun, the second spray gun and the third spray gun through the sand material diverter.

[0009] In some embodiments, the spray gun mechanism also includes a moving component and a connecting member, the moving component is arranged in the sandblasting chamber, the connecting member is connected to the moving component to move under the drive of the moving component, and the first spray gun, the second spray gun and the third spray gun are all connected to the connecting member and move synchronously with the connecting member.

[0010] In some embodiments, the spray angles of the first spray gun and the second spray gun are adjustable.

[0011] In some embodiments, the sandblasting equipment also includes a spray gun gas tank, which has an air inlet and multiple gas distribution ports. The air inlet of the spray gun gas tank is used to connect with an external gas source, and the multiple gas distribution ports of the spray gun gas tank are respectively connected to the first spray gun, the second spray gun and the third spray gun, so that the first spray gun, the second spray gun and the third spray gun can spray sand mixed with gas.

[0012] In some embodiments, the sandblasting chamber also has a return port, which is connected to the bottom of the sandblasting space and to the sand return pipe. The sandblasting equipment also includes a spiral auger, which is rotatably arranged in the sandblasting chamber and located at the bottom of the sandblasting space. The spiral auger is used to rotate to make the sand in the sandblasting space flow to the return port.

[0013] In some embodiments, the sandblasting equipment further includes a sand adding mechanism, which is connected to the sand return pipe and is used to add sand into the sand return pipe.

[0014] In some embodiments, the sand supply mechanism also includes a material level detector, which is arranged at the discharge port of the cyclone separator. The material level detector is coupled to the sand adding mechanism. The material level detector is used to detect the material level of the sand at the discharge port of the cyclone separator and transmit the detection information to the sand adding mechanism, so that the sand adding mechanism adds sand into the return sand pipe.

[0015] In some embodiments, the supporting mechanism also includes a rotating cylinder, a carrier, a carrier plate, a first driving member, a second driving member and a transmission assembly, one end of the rotating cylinder is rotatably arranged in the sandblasting chamber, the other end of the rotating cylinder is connected to the carrier, the carrier plate is connected to the rotating cylinder, the supporting member is rotatably arranged on the carrier, the first driving member is arranged on the carrier plate and connected to the rotating cylinder to drive the rotating cylinder to rotate, the second driving member is arranged on the carrier plate and spaced apart from the first driving member, the transmission assembly is arranged in the rotating cylinder and in the carrier, and the transmission assembly is connected between the second driving member and the supporting member, and the second driving member drives the supporting member to rotate through the transmission assembly.

[0016] In some embodiments, the transmission assembly includes a transmission rod, a transmission belt and a transmission wheel, one end of the transmission rod is transmission-connected to the second driving member, the other end of the transmission rod extends into the carrier and is spaced apart from the supporting member, the transmission wheel is rotatably disposed in the carrier and connected to the supporting member, and the transmission belt is sleeved between the other end of the transmission rod and the transmission wheel.

[0017] In some embodiments, the sandblasting equipment also includes a dust removal mechanism, which is arranged on one side of the sandblasting chamber, and is connected to the exhaust port of the cyclone separator. The dust removal mechanism is used to provide suction for the cyclone separator so that the sand in the sandblasting space can flow back to the cyclone separator through the return sand pipe, and the dust removal mechanism is also used to process the exhaust gas discharged through the exhaust port of the cyclone separator.

[0018] When the above-mentioned sandblasting equipment is sandblasting the workpiece, the bearing member of the bearing mechanism carries the workpiece outside the sandblasting space and drives the workpiece to move into the sandblasting space, so that the workpiece corresponds to the spray gun mechanism, that is, the first spray gun corresponds to the first surface of the workpiece, the second spray gun corresponds to the second surface of the workpiece, and the third spray gun corresponds to the outer surface of the workpiece. The return sand pipe, cyclone separator and sand diverter of the sand supply mechanism cooperate to continuously supply sand to the first spray gun, the second spray gun and the third spray gun, so that the first spray gun sprays sand toward the first surface of the workpiece, the second spray gun sprays sand toward the second surface of the workpiece, and the third spray gun sprays sand toward the third surface of the workpiece, thereby realizing simultaneous sandblasting of the three surfaces of the workpiece. The first spray gun, the second spray gun and the third spray gun move to spray sand on the first surface, the second surface and the outer surface respectively, and at the same time, the bearing member drives the workpiece to rotate so that the workpiece moves in a contoured manner, so that the first spray gun, the second spray gun and the third spray gun perform full-area sandblasting on the workpiece.

[0019] The sandblasting equipment provided in the embodiment of the present application realizes simultaneous sandblasting of three surfaces of the workpiece and sandblasting of the entire area of ​​the workpiece through the coordinated cooperation of the sandblasting chamber, the supporting mechanism, the spray gun assembly and the sand supply mechanism. There is no need for frequent loading and unloading to adjust the position of the workpiece, which reduces the loading and unloading time and is beneficial to improving the sandblasting efficiency; since the spray gun mechanism can sandblast the three surfaces of the workpiece at the same time, there is no need for frequent manual loading and unloading, which is beneficial to reducing the labor intensity of manual labor; since there is no need for frequent manual loading and unloading, the placement position of the workpiece is relatively stable, which is beneficial to improving the sandblasting yield; the sandblasting equipment sandblasts the workpiece in the sandblasting space to avoid sand splashing to pollute the environment and cause dust hazards to the operators; sand is continuously supplied to the spray gun mechanism through the return sand pipe, cyclone separator and sand diverter of the sand supply mechanism, which improves the utilization rate of the sand and saves the sand cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the sandblasting equipment provided in the embodiment of the present application.

[0021] Figure 2 yes Figure 1 A schematic structural diagram of the sandblasting equipment from another perspective is shown.

[0022] Figure 3 yes Figure 1 The schematic cross-sectional view of the sandblasting chamber along III-III of the sandblasting chamber, sand supply mechanism, spiral auger and sand adding mechanism of the sandblasting equipment shown.

[0023] Figure 4 yes Figure 1 Schematic diagram of the structure of the spray gun mechanism of the sandblasting equipment shown.

[0024] Figure 5 yes Figure 4The diagram shows the states of the first spray gun, the second spray gun, the third spray gun, the mounting assembly and the workpiece during the spraying of abrasive materials.

[0025] Figure 6 yes Figure 4 A schematic structural diagram of a first spray gun, a second spray gun, a third spray gun and a mounting assembly of the spray gun mechanism shown.

[0026] Figure 7 yes Figure 6 An exploded schematic diagram of the first spray gun, the second spray gun, the third spray gun and the mounting assembly is shown.

[0027] Figure 8 yes Figure 1 Schematic diagram of the structure of the supporting mechanism shown.

[0028] Fig. 9 yes Figure 8 Schematic diagram of the exploded view of the support mechanism shown.

[0029] Main component symbols

[0030] Sandblasting equipment100

[0031] Sand blasting room 10

[0032] Sandblasting Space 11

[0033] Return port 12

[0034] Carrying mechanism 20

[0035] Carrier 21

[0036] Rotating drum 22

[0037] Stage 23

[0038] Bottom shell 231

[0039] Cover 232

[0040] Carrier board 24

[0041] First driving member 25

[0042] Second driving member 26

[0043] Transmission components 27

[0044] Transmission rod 271

[0045] Transmission belt 272

[0046] Transmission wheel 273

[0047] Spray gun mechanism 30

[0048] First spray gun 31

[0049] Second spray gun 32

[0050] The third spray gun 33

[0051] Ontology 301

[0052] Nozzle 302

[0053] Sand inlet 303

[0054] Air inlet 304

[0055] Sand outlet 305

[0056] Motion components 34

[0057] Base 341

[0058] Slide 342

[0059] First slide rail slider structure 343

[0060] Slide 344

[0061] Second slide rail slider structure 345

[0062] Connecting arm 346

[0063] Connector 35

[0064] Installation Kit 36

[0065] First connecting rod 361

[0066] First adjustment member 362

[0067] First jack 3621

[0068] Second adjustment member 363

[0069] Second jack 3631

[0070] First plunger 364

[0071] First connection seat 365

[0072] Second plunger 366

[0073] Second connecting seat 367

[0074] Second connecting rod 368

[0075] The third adjusting member 369

[0076] Third jack 3691

[0077] The third plug 3610

[0078] The third connection seat 3611

[0079] Connecting plate 3612

[0080] Sand supply mechanism 40

[0081] Sand return pipe 41

[0082] Cyclone separator 42

[0083] Feed port 421

[0084] Discharge port 422

[0085] Exhaust port 423

[0086] Sand diverter 43

[0087] Feeding port 431

[0088] Feeding port 432

[0089] Material level detector 44

[0090] Airbrush gas tank 50

[0091] Air Inlet 51

[0092] Gas distribution port 52

[0093] Auger 60

[0094] Sand adding mechanism 70

[0095] Dust removal mechanism 80

[0096] Workpiece 200

[0097] First side 201

[0098] Second side 202

[0099] Outer side 203 DETAILED DESCRIPTION

[0100] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0101] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0102] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0103] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0104] See also Figure 1 , the present application embodiment provides a sandblasting device 100. Please refer to Figure 5 The sandblasting device 100 is used to spray sand material toward the first surface 201 of the workpiece 200, the second surface 202 disposed opposite to the first surface 201, and the outer side surface 203 connected between the first surface 201 and the second surface 202. The workpiece 200 may be a middle frame, and the first surface 201 and the second surface 202 may be the front and back of the middle frame, respectively. It can be understood that the workpiece 200 may also be other objects having a first surface 201, a second surface 202, and an outer side surface 203, which is not specifically limited in the embodiment of the present application.

[0105] Please refer to Figure 1 , Figure 2 and Figure 3 The sandblasting equipment 100 includes a sandblasting chamber 10 , a carrying mechanism 20 , a spray gun mechanism 30 and a sand supply mechanism 40 .

[0106] The sandblasting room 10 has a sandblasting space 11, wherein the sandblasting space 11 is used to perform sandblasting on the workpiece 200. It is understandable that the sandblasting room 10 can be understood as a substantially closed hollow structure having the sandblasting space 11, the sandblasting room 10 can be placed on an external machine, the sandblasting room 10 can also be configured to have a machine itself, the sandblasting room 10 can be used to install structures such as a bearing mechanism 20, a spray gun mechanism 30, and a sand supply mechanism 40, wherein the sandblasting room 10 hides a part of the specific structure for installing structures such as the bearing mechanism 20, the spray gun mechanism 30, and the sand supply mechanism 40. By making the sandblasting room 10 into a closed hollow structure, sandblasting is performed in the sandblasting space 11, preventing sand blasting from injuring people, dust from flying and polluting the environment, and facilitating the recovery of sand. It is understandable that the sandblasting room 10 can also be configured to have an explosion-proof glass window to facilitate the sandblasting situation in the sandblasting room 10. The sandblasting room 10 can be welded and formed as a whole using 3mm thick stainless steel. The shape and size of the sandblasting chamber 10 can be set according to actual conditions, and the embodiment of the present application does not specifically limit this.

[0107] The bearing mechanism 20 is disposed in the sandblasting room 10, and the bearing mechanism 20 includes a bearing member 21 that can be moved and rotated in and outside the sandblasting space 11 (please refer to Figure 8 ), the carrier 21 is used to carry and drive the workpiece 200 to rotate. It can be understood that the carrier 21 can carry and fix the workpiece 200, and the carrier 21 can drive the workpiece 200 to move in and outside the sandblasting space 11, so as to facilitate the sandblasting of the workpiece 200 in the sandblasting space 11 and the loading and unloading of the workpiece 200 outside the sandblasting space 11, and the carrier 21 can rotate to drive the workpiece 200 to rotate, so as to facilitate the contour movement of the workpiece 200 and the full-area sandblasting of the workpiece 200.

[0108] The spray gun mechanism 30 is disposed in the sandblasting space 11. Figure 5The spray gun mechanism 30 includes a movable first spray gun 31, a second spray gun 32 and a third spray gun 33. The first spray gun 31 is used to spray abrasive toward the first surface 201, the second spray gun 32 is used to spray abrasive toward the second surface 202, and the third spray gun 33 is used to spray abrasive toward the outer surface 203. The first spray gun 31 and the second spray gun 32 are symmetrically arranged, and the first spray gun 31 and the second spray gun 32 are located on the same side of the third spray gun 33. Among them, when the supporting member 21 drives the workpiece 200 to move into the sandblasting space 11, the first spray gun 31, the second spray gun 32 and the third spray gun 33 spray sand toward the first surface 201, the second surface 202 and the outer surface 203 respectively, and the first spray gun 31, the second spray gun 32 and the third spray gun 33 move synchronously together along, for example, the long side of the workpiece 200 to sandblast the long side of the workpiece 200. When the first spray gun 31, the second spray gun 32 and the third spray gun 33 move together to the corner where the long side and the short side of the workpiece 200 meet, the supporting member 21 drives the workpiece 200 to rotate. At the same time, the first spray gun 31, the second spray gun 32 and the third spray gun 33 move adaptively so that the short side of the rotated workpiece 200 corresponds to the first spray gun 31, the second spray gun 32 and the third spray gun 33, thereby sandblasting the short side of the workpiece 200. In this way, the workpiece 200 is sandblasted in its entirety.

[0109] The sand supply mechanism 40 includes a sand return pipe 41, a cyclone separator 42 and a sand material diverter 43. One end of the sand return pipe 41 is connected to the sand blasting chamber 10 and communicates with the sand blasting space 11. The other end of the sand return pipe 41 is communicated with a feed port 421 of the cyclone separator 42. The cyclone separator 42 is disposed in the sand blasting chamber 10. The sand material diverter 43 is disposed in the sand blasting space 11. The feed port 431 of the sand material diverter 43 is communicated with the discharge port 422 of the cyclone separator 42. The material distribution openings 432 are respectively connected to the first spray gun 31, the second spray gun 32 and the third spray gun 33, wherein the sand in the sand blasting space 11 flows back to the cyclone separator 42 through the sand return pipe 41, and flows into the sand material diverter 43 after separation and processing by the cyclone separator 42, and flows to the first spray gun 31, the second spray gun 32 and the third spray gun 33 through the sand material diverter 43, so as to continuously provide sand materials to the first spray gun 31, the second spray gun 32 and the third spray gun 33, reuse sand materials and save sand materials. Among them, the sand material diverter 43 has a plurality of material distribution openings 432, and the shape of the sand return pipe 41 can be a circular tube, a rectangular tube or a combination of a circular and a rectangular tube.

[0110] When the sandblasting device 100 is sandblasting the workpiece 200, the support member 21 of the support mechanism 20 supports and fixes the workpiece 200 outside the sandblasting space 11 and drives the workpiece 200 to move into the sandblasting space 11, so that the workpiece 200 corresponds to the spray gun mechanism 30, that is, the first spray gun 31 corresponds to the first surface 201 of the workpiece 200, the second spray gun 32 corresponds to the second surface 202 of the workpiece 200, and the third spray gun 33 corresponds to the third surface of the workpiece 200. The sand return pipe 41, the cyclone separator 42 and the sand material diverter 43 of the sand supply mechanism 40 cooperate to continuously supply the first spray gun 31, the second spray gun 32 and the third spray gun 33. According to the abrasive material, the first spray gun 31 sprays abrasive material toward the first surface 201 of the workpiece 200, the second spray gun 32 sprays abrasive material toward the second surface 202 of the workpiece 200, and the third spray gun 33 sprays abrasive material toward the third surface of the workpiece 200, thereby realizing simultaneous sandblasting of the three surfaces of the workpiece 200. The first spray gun 31, the second spray gun 32 and the third spray gun 33 move to spray abrasive material on the first surface 201, the second surface 202 and the outer surface 203 respectively. At the same time, the supporting member 21 drives the workpiece 200 to rotate so that the workpiece 200 moves in a contoured manner, so that the first spray gun 31, the second spray gun 32 and the third spray gun 33 perform full-area sandblasting treatment on the workpiece 200.

[0111] In order to improve the sandblasting efficiency of the sandblasting equipment 100, in this embodiment, the number of the supporting mechanisms 20 is multiple, for example, five, and the multiple supporting mechanisms 20 are arranged at intervals in the sandblasting room 10. Correspondingly, the number of the first spray guns 31, the second spray guns 32, and the third spray guns 33 are equal to the number of the supporting mechanisms 20 and are arranged one by one. The multiple first spray guns 31, the multiple second spray guns 32, and the multiple third spray guns 33 all move synchronously. In this way, by setting up multiple supporting mechanisms 20, the first spray guns 31, the second spray guns 32, and the third spray guns 33, the sandblasting equipment 100 can perform sandblasting on multiple workpieces 200 at a time, thereby improving the sandblasting efficiency of the sandblasting equipment 100.

[0112] In order to ensure the spray pressure of each spray gun, in this embodiment, the sandblasting equipment 100 also includes a spray gun gas tank 50, which can be arranged in the sandblasting room 10, and the spray gun gas tank 50 has an air inlet 51 and a plurality of gas outlets 52, and the air inlet 51 of the spray gun gas tank 50 is used to communicate with an external gas source, and the plurality of gas outlets 52 of the spray gun gas tank 50 are respectively connected with the first spray gun 31, the second spray gun 32 and the third spray gun 33, so that the first spray gun 31, the second spray gun 32 and the third spray gun 33 spray sand mixed with gas. Among them, the number of the spray gun gas tanks 50 can be two, the two spray gun gas tanks 50 are arranged at intervals, and each spray gun gas tank 50 has a plurality of gas outlets 52, so that the plurality of gas outlets 52 of the two spray gun gas tanks 50 can be connected with the plurality of first spray guns 31, the plurality of second spray guns 32 and the plurality of third spray guns 33 in a one-to-one correspondence. In this way, by setting the above-mentioned spray gun gas tank 50, the spray gun gas tank 50 can buffer the compressed air gas to divert the gas for each spray gun, provide a stable and sufficient gas flow for each spray gun, and ensure the injection pressure of each spray gun. It can be understood that the spray gun gas tank 50 can be made of a 5mm thick seamless stainless steel pipe with a pressure resistance of 1.2MPa. The air inlet 51 of the spray gun gas tank 50 can be set to a DN50 large diameter, and each gas outlet 52 can be set to a DN15 diameter. It can be understood that the spray gun gas tank 50 can also be configured with a pressure regulating valve and a water mist filter. The pressure regulating valve and the water mist filter are connected. The pressure regulating valve is connected to an external gas source, and the water mist filter is connected to the air inlet 51. The pressure regulating valve is used to adjust the gas pressure entering the spray gun gas tank 50 to ensure the stability of the pressure in the spray gun gas tank 50, and the water mist filter is used to filter the gas to ensure that the gas is dry. Among them, the air pressure of the external air source is required to be 0.6MPa-0.7MPa, the air source flow rate is greater than or equal to 5 cubic meters per minute and it is water-free and oil-free dry compressed gas.

[0113] In order to enable the sand in the sandblasting room 10 to flow back to the sand return pipe 41, in this embodiment, the bottom of the sandblasting room 10 is roughly conical, for example, the bottom slope angle of the sandblasting room 10 is greater than or equal to 45 degrees, and the sandblasting room 10 also has a return port 12, which is connected to the bottom of the sandblasting space 11 and the return pipe 41. It can be understood that the return port 12 is arranged at the bottom of the sandblasting room 10. The sandblasting equipment 100 also includes a spiral auger 60, which is rotatably arranged in the sandblasting room 10 and located at the bottom of the sandblasting space 11. The spiral auger 60 is used to rotate to make the sand in the sandblasting space 11 flow to the return port 12. Among them, the spiral auger 60 has symmetrical left-handed blades and right-handed blades. The spiral auger 60 can be made of 304 stainless steel, with good sand return effect and convenient maintenance. The spiral auger 60 can be driven and rotated by an explosion-proof three-phase asynchronous reduction motor, a sprocket, a chain, etc. The spiral auger 60 rotates to gather the sand in the sandblasting space 11 toward the middle, so that the sand flows to the return port 12 and flows from the return port 12 to the return sand pipe 41. In this way, by providing the spiral auger 60, the sand at both ends of the sandblasting space 11 can flow back to the return sand pipe 41, ensuring the reuse of the sand and saving the sand.

[0114] It can be understood that in order to avoid the generation of static electricity in the sandblasting room 10, the sandblasting room 10 can also be configured with an electrostatic liquid nozzle (not shown), which is arranged in the sandblasting space 11. The electrostatic liquid nozzle is used to spray electrostatic liquid into the sandblasting space 11 at a regular time and in a fixed amount to avoid the generation of static electricity in the sandblasting room 10.

[0115] In order to ensure that the sand material in the sandblasting equipment 100 is sufficient, in this embodiment, the sandblasting equipment 100 further includes a sand adding mechanism 70, which is connected to the return sand pipeline 41, and is used to add sand material to the return sand pipeline 41. The sand adding mechanism 70 can be connected to the middle part of the return sand pipeline 41, and the sand adding mechanism 70 can be composed of a silo, a valve, a bracket, etc., and the silo has sand material, and the valve is connected between the silo and the return sand pipeline 41. By opening the valve, the sand material in the silo flows into the return sand pipeline 41, thereby replenishing the return sand pipeline 41 with sand material, that is, replenishing the sand material to the sandblasting equipment 100, to ensure that the sand material in the sandblasting equipment 100 is sufficient.

[0116] In order to enable the sand blasting equipment 100 to automatically replenish sand, in this embodiment, the sand supply mechanism 40 also includes a material level detector 44, which is arranged at the discharge port 422 of the cyclone separator 42. The material level detector 44 is coupled to the sand adding mechanism 70. The material level detector 44 is used to detect the material level of the sand at the discharge port 422 of the cyclone separator 42 and transmit the detection information to the sand adding mechanism 70, so that the sand adding mechanism 70 adds sand into the return sand pipe 41. The material level detector 44 can be coupled with the valve of the sand adding mechanism 70. When the material level detector 44 detects that the sand material at the material outlet 422 of the cyclone separator 42 is less than a preset value, the material level detector 44 transmits the detection information to the valve. The valve receives the detection information and opens to add sand material into the return sand pipeline 41. The newly added sand material flows along the return sand pipeline 41 to the cyclone separator 42. When the material level detector 44 detects that the sand material at the material outlet 422 of the cyclone separator 42 is greater than a preset value, the material level detector 44 transmits the detection information to the valve. The valve closes after receiving the detection information to stop adding sand material into the return sand pipeline 41. It can be understood that the valve can be a solenoid valve with functions such as receiving information and processing information, or the valve and the material level detector 44 are coupled through a processing module with functions such as receiving information, processing information, storing information, and sending information. In this way, by providing the material level detector 44 , the sand material at the material outlet 422 of the cyclone separator 42 can be detected in real time, so that the sand blasting equipment 100 can realize automatic replenishment of sand material.

[0117] In order to process the exhaust gas discharged through the cyclone separator 42, in this embodiment, the sandblasting equipment 100 further includes a dust removal mechanism 80, which is disposed on one side of the sandblasting chamber 10, and is connected to the exhaust port 423 of the cyclone separator 42. The dust removal mechanism 80 is used to provide suction to the cyclone separator 42 so that the sand in the sandblasting space 11 flows back to the cyclone separator 42 through the sand return pipe 41, and the dust removal mechanism 80 is used to process the exhaust gas discharged through the exhaust port 423 of the cyclone separator 42. The dust removal mechanism 80 may be a wet dust removal system, and after the dust removal mechanism 80 processes the exhaust gas discharged through the exhaust port 423 of the cyclone separator 42, the particulate matter in the exhaust gas is moistened and precipitated in the wet dust removal system under the dust removal effect of the wet dust removal system, and the precipitated particulate matter may be cleaned regularly. In this way, by providing the dust removal mechanism 80, the waste gas discharged from the cyclone separator 42 is processed to achieve pollution-free processing of the waste gas.

[0118] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7In this embodiment, the spray gun mechanism 30 further includes a motion component 34 and a connecting member 35. The motion component 34 is disposed in the sandblasting chamber 10. The connecting member 35 is connected to the motion component 34 to move under the drive of the motion component 34. The first spray gun 31, the second spray gun 32 and the third spray gun 33 are all connected to the connecting member 35 and move synchronously with the connecting member 35. Among them, when the number of the first spray gun 31, the second spray gun 32 and the third spray gun 33 is multiple, the multiple first spray guns 31, the multiple second spray guns 32 and the multiple third spray guns 33 are all connected to the connecting member 35 and are arranged at intervals. In this way, by setting the above-mentioned motion component 34 and the connecting member 35, the first spray gun 31, the second spray gun 32 and the third spray gun 33 can be moved, so as to perform sandblasting on the entire area of ​​the workpiece 200.

[0119] In order to improve the versatility of the spray gun mechanism 30, in this embodiment, the spray angles of the first spray gun 31 and the second spray gun 32 can be adjusted, and the first spray gun 31, the second spray gun 32 and the third spray gun 33 roughly form a Y shape. In this way, by setting the spray angles of the first spray gun 31 and the second spray gun 32 to be adjustable, adaptive adjustment can be performed according to the shapes of different workpieces 200, thereby improving the versatility of the spray gun mechanism 30.

[0120] In this embodiment, the adjustable range of the spray angle of the first spray gun 31 and the adjustable range of the spray angle of the second spray gun 32 are both 0° to 90°. In this way, by limiting the adjustable range of the spray angle of the first spray gun 31 and the adjustable range of the spray angle of the second spray gun 32, the spray gun mechanism 30 can adaptably adjust the spray angle of the first spray gun 31 and the spray angle of the second spray gun 32 according to the type of the workpiece 200 during actual use, which is conducive to improving the versatility of the spray gun mechanism 30.

[0121] In this embodiment, the structures of the first spray gun 31, the second spray gun 32 and the third spray gun 33 are roughly similar. The first spray gun 31, the second spray gun 32 and the third spray gun 33 all include a body 301 and a nozzle 302. The body 301 has a sand inlet 303, an air inlet 304 and a sand outlet 305. The sand inlet 303 is used to communicate with the material distribution port 432 of the sand material diverter 43 of the sand supply mechanism 40, the air inlet 304 is used to communicate with the air distribution port 52 of the spray gun gas tank 50, and the nozzle 302 is connected to the sand outlet 305. The nozzle 302 is used to spray the sand material mixed with gas sprayed through the sand outlet 305. Among them, the body 301 can be made of aluminum material, and the nozzle 302 can be a boron carbide nozzle, which is more durable. In this way, by providing the specific structures of the first spray gun 31 , the second spray gun 32 and the third spray gun 33 , it is beneficial to improve the durability and spraying quality of the first spray gun 31 , the second spray gun 32 and the third spray gun 33 .

[0122] It can be understood that in this embodiment, an electrical proportional valve (not shown) can be respectively configured between the first spray gun 31, the second spray gun 32 and the third spray gun 33 and the gas distribution port 52 of the spray gun gas tank 50. The electrical proportional valve has the functions of air pressure setting, automatic monitoring and automatic compensation, so that the first spray gun 31, the second spray gun 32 and the third spray gun 33 have the function of adjustable pressure, thereby improving the versatility of the spray gun mechanism 30.

[0123] In this embodiment, the motion assembly 34 can drive the connection member 35, the first spray gun 31, the second spray gun 32 and the third spray gun 33 to move in two perpendicular directions. Specifically, the motion assembly 34 can include a first linear module (not shown), a second linear module (not shown), a base 341, a slide 342, a first slide rail and slider structure 343, a slide seat 344, a second slide rail and slider structure 345 and a connecting arm 346. The base 341 can be set on the sandblasting chamber 10, the first slide rail slider structure 343 is set on the base 341, and the slide 342 is connected to the first slide rail slider structure 343 to be slidably set on the base 341 through the first slide rail slider structure 343, wherein the number of bases 341 and the first slide rail slider structure 343 are both two and one-to-one corresponding, the two bases 341 are arranged at intervals, the slide 342 is roughly annular structure, the slide 342 can move along the base 341 through the first slide rail slider structure 343, and the first linear module is connected to the slide 342 to drive the slide 342 to move along the base 341. The second slide rail slider structure 345 is arranged on the slide 342, the slide seat 344 is a hollow structure, the slide seat 344 is connected to the second slide rail slider structure 345 and is sleeved on the outer side of the second slide rail slider structure 345 and the slide 342, one end of the connecting arm 346 is connected to the slide seat 344, and the other end of the connecting arm 346 is connected to the connecting member 35, wherein the number of the second slide rail slider structure 345, the slide seat 344 and the connecting arm 346 are two, the second linear module is connected to one or two slide seats 344 to drive the slide seat 344 to move along the slide 342, the moving direction of the slide seat 344 is perpendicular to the moving direction of the slide 342, and the extension direction of the first slide rail slider structure 343 is perpendicular to the extension direction of the second slide rail slider structure 345. In this way, by setting the specific structure of the above-mentioned motion component 34, the motion component 34 can drive the first spray gun 31, the second spray gun 32 and the third spray gun 33 of the connecting member 35 to move in two perpendicular directions. The cyclone separator 42 and the sand material diverter 43 can also pass through the motion component 34 so that the sand material diverter 43 is connected with each spray gun, and the motion component 34 can also avoid the cyclone separator 42 and the sand material diverter 43.

[0124] It can be understood that in other embodiments, the motion component 34 can also be other functional mechanisms that can drive the connecting member 35, the first spray gun 31, the second spray gun 32 and the third spray gun 33 to move in two perpendicular directions, such as a two-axis linear module, a three-axis linear module, or a robotic arm, etc., wherein the cyclone separator 42 and the sand diverter 43 can adaptively change the setting position, and the embodiment of the present application does not specifically limit this.

[0125] In this embodiment, the spray gun mechanism 30 further includes a mounting assembly 36, and the number of the mounting assembly 36 is multiple, and each group of the first spray gun 31, the second spray gun 32 and the third spray gun 33 is connected to the connecting member 35 through the mounting assembly 36. Specifically, the mounting assembly 36 includes a first connecting rod 361, a first adjusting member 362 and a second adjusting member 363, the first connecting rod 361 is vertically connected to the connecting member 35, the first adjusting member 362 and the second adjusting member 363 are arranged at intervals, and the first adjusting member 362 and the second adjusting member 363 are both movably arranged on the first connecting rod 361, the first adjusting member 362 is located directly above the second adjusting member 363, the first spray gun 31 is rotatably arranged on the first adjusting member 362, and the second spray gun 32 is rotatably arranged on the second adjusting member 363. In this way, by setting the above-mentioned first connecting rod 361, first adjusting member 362 and second adjusting member 363, on the first aspect, the first spray gun 31 is rotatably set on the first adjusting member 362, and the second spray gun 32 is rotatably set on the second adjusting member 363, thereby realizing the function of adjustable spray angles of the first spray gun 31 and the second spray gun 32; on the second aspect, the first adjusting member 362 and the second adjusting member 363 can both be movably set on the first connecting rod 361, so that the first spray gun 31 and the second spray gun 32 also have the function of moving up and down, further improving the versatility of the spray gun mechanism 30. It can be understood that the first adjusting member 362 and the second adjusting member 363 can be snapped onto the first connecting rod 361 and fastened by screws. When the position of the first adjusting member 362 and the second adjusting member 363 needs to be adjusted, the position of the first adjusting member 362 and the second adjusting member 363 is adjusted by loosening the screw, thereby adjusting the position of the first spray gun 31 and the second spray gun 32. The first adjusting member 362 and the second adjusting member 363 are fixed by tightening the screw, thereby fixing the first spray gun 31 and the second spray gun 32.

[0126] In this embodiment, a plurality of first plug holes 3621 are provided on the first adjusting member 362, and the mounting assembly 36 further includes a first plug rod 364 and a first connecting seat 365, one end of the first plug rod 364 is inserted into any of the first plug holes 3621, and the other end of the first plug rod 364 is connected to the first connecting seat 365, and the first spray gun 31 is arranged on the first connecting seat 365. The first plug rod 364 can be rotatably plugged with the first plug hole 3621, and when the spray angle of the first spray gun 31 needs to be adjusted, the angle of the first spray gun 31 can be adjusted by rotating the first plug rod 364. The first connecting seat 365 can also be fastened on the body 301 of the first spray gun 31 by buckling and screws. In this way, by providing the above-mentioned first plug rod 364 and the first connecting seat 365, the first spray gun 31 is rotatably arranged on the first adjusting member 362, and by inserting the first plug rod 364 into different first plug holes 3621, the position of the first spray gun 31 can be adjusted.

[0127] It is understandable that in other embodiments, the first connection seat 365 can also be rotatably connected to the first plug rod 364. In this way, when the spraying angle of the first spray gun 31 needs to be adjusted, the spraying angle of the first spray gun 31 can be adjusted by rotating the first connection seat 365, wherein the first plug rod 364 can be fixedly inserted in the first insertion hole 3621.

[0128] In this embodiment, a plurality of second plug holes 3631 are provided on the second adjusting member 363, and the mounting assembly 36 further includes a second plug rod 366 and a second connecting seat 367. One end of the second plug rod 366 is inserted into any of the second plug holes 3631, and the other end of the second plug rod 366 is connected to the second connecting seat 367, and the second spray gun 32 is arranged on the second connecting seat 367. The second plug rod 366 can be rotatably plugged into the second plug hole 3631, and when the spray angle of the second spray gun 32 needs to be adjusted, the angle of the second spray gun 32 can be adjusted by rotating the second plug rod 366. The second connecting seat 367 can also be fastened on the body 301 of the second spray gun 32 by buckling and screws. In this way, by setting the above-mentioned second plug rod 366 and the second connecting seat 367, the second spray gun 32 is rotatably arranged on the second adjusting member 363, and by inserting the second plug rod 366 into different second plug holes 3631, the position of the second spray gun 32 can be adjusted.

[0129] It is understandable that in other embodiments, the second connection seat 367 can also be rotatably connected to the second plug rod 366. In this way, when the spraying angle of the second spray gun 32 needs to be adjusted, the spraying angle of the second spray gun 32 can be adjusted by rotating the second connection seat 367, wherein the second plug rod 366 can be fixedly inserted into the second insertion hole 3631.

[0130] In this embodiment, the spray angle and spray position of the third spray gun 33 can also be adjusted, thereby further improving the versatility of the spray gun mechanism 30. Specifically, the mounting assembly 36 also includes a second connecting rod 368, a third adjusting member 369, a third plug rod 3610 and a third connecting seat 3611. The second connecting rod 368 is vertically connected to the connecting member 35 and is spaced apart from the first connecting rod 361. The third adjusting member 369 is movably arranged on the second connecting rod 368. The third adjusting member 369 is provided with a plurality of third plug holes 3691 spaced apart. One end of the third plug rod 3610 is inserted into any of the third plug holes 3691. The other end of the third plug rod 3610 is connected to the third connecting seat 3611. The third spray gun 33 is arranged on the third connecting seat 3611. Among them, the second connecting rod 368 and the first connecting rod 361 can be centrally connected to a connecting plate 3612, and the connecting plate 3612 is connected to the connecting member 35, so that the mounting assembly 36, the first spray gun 31, the second spray gun 32 and the third spray gun 33 are modularly arranged, and the connecting plate 3612 can be roughly L-shaped. It can be understood that the second connecting rod 368 and the first connecting rod 361 can be rotatably connected to the connecting plate 3612, thereby improving the versatility of the spray gun mechanism 30. The second connecting rod 368 and the first connecting rod 361 can be staggered so that the third spray gun 33, the second spray gun 32 and the first spray gun 31 are located in the same plane. Among them, the connection mode of the third adjusting member 369 and the second connecting rod 368 is substantially the same as the connection mode of the first adjusting member 362 and the first connecting rod 361, the connection mode of the third plug rod 3610 and the third plug hole 3691 is substantially similar to the connection mode of the first plug rod 364 and the first plug hole 3621, and the connection mode of the third connecting seat 3611 and the third plug rod 3610 and the third spray gun 33 is substantially similar to the connection mode of the first connecting seat 365 and the first plug rod 364 and the first spray gun 31. In this way, by providing the above-mentioned second connecting rod 368, third adjusting member 369, third plug rod 3610 and third connecting seat 3611, on the one hand, the spray angle of the third spray gun 33 can be adjusted, and on the other hand, the spray position of the third spray gun 33 can be adjusted, thereby further improving the versatility of the spray gun mechanism 30.

[0131] Please refer to Figure 8 and Fig. 9In this embodiment, each bearing mechanism 20 further includes a rotating cylinder 22, a carrier 23, a carrier plate 24, a first driving member 25, a second driving member 26 and a transmission assembly 27. The rotating cylinder 22 is a hollow structure with openings at both ends. One end of the rotating cylinder 22 is rotatably disposed in the sandblasting chamber 10. For example, one end of the rotating cylinder 22 is rotatably disposed in the sandblasting chamber 10 through a gear transmission structure. The other end of the rotating cylinder 22 is connected to the carrier 23. The carrier plate 24 is connected to the rotating cylinder 22 and is spaced apart from the sandblasting chamber 10. The bearing member 21 is rotatably disposed on the carrier 23. The first driving member 25 and the second driving member 26 can both be The first driving member 25 is a motor, and the first driving member 25 is arranged on the carrier plate 24 and connected to the rotating cylinder 22 to drive the rotating cylinder 22 to rotate. The second driving member 26 is arranged on the carrier plate 24 and is spaced apart from the first driving member 25. The transmission assembly 27 is arranged in the transmission cylinder and the carrier 23, and the transmission assembly 27 is connected between the second driving member 26 and the supporting member 21. The second driving member 26 drives the supporting member 21 to rotate through the transmission assembly 27, wherein the first driving member 25 and the rotating cylinder 22 can be connected by gear meshing, for example, gears are sleeved on the outer side of the rotating cylinder 22, and gears are sleeved on the output shaft of the first driving member 25. In this way, by rotatably setting the rotating cylinder 22 in the sandblasting chamber 10, when the first driving member 25 drives the rotating cylinder 22 to rotate, since the rotating cylinder 22 is rotatably set in the sandblasting chamber 10, it is subjected to a reverse force, and the rotating cylinder 22, the carrier plate 24, the platform 23, the first driving member 25, the second driving member 26 and the transmission assembly 27 all rotate, thereby causing the supporting member 21 to move in and outside the sandblasting space 11. When the supporting member 21 drives the workpiece 200 to move into the sandblasting space 11, the second driving member 26 can drive the supporting member 21 to rotate, thereby driving the workpiece 200 to rotate, so that the spray gun mechanism 30 can perform full-area sandblasting on the workpiece 200.

[0132] It is understandable that in other embodiments, the bearing mechanism 20 can also be other functional mechanisms that can drive the workpiece 200 to move between the inside and outside of the sandblasting space 11 and can drive the bearing member 21 to rotate. For example, the bearing mechanism 20 includes a linear module, a rotary motor and other structures. The linear module is arranged in the sandblasting room 10 and one end of the linear module is located outside the sandblasting space 11, and the other end of the linear module is located inside the sandblasting space 11. The rotary motor is arranged in the linear module, and the bearing member 21 is connected to the rotary motor. The linear module is used to drive the rotary motor and the bearing member 21 to move between the inside and outside of the sandblasting space 11, and the rotary motor drives the bearing member 21 to rotate. It is understandable that the embodiments of the present application do not specifically limit this.

[0133] It is understandable that, when the sandblasting equipment 100 is actually used, the workpiece 200 can also be loaded and unloaded by external loading and unloading equipment such as robots, etc., and this embodiment of the application does not specifically limit this.

[0134] In order to improve the sandblasting efficiency of the sandblasting device 100, in this embodiment, each bearing mechanism 20 includes two bearing members 21, and correspondingly, each bearing mechanism 20 also includes two second driving members 26 and two transmission assemblies 27. The two second driving members 26, the two transmission assemblies 27 and the two bearing members 21 are arranged in a one-to-one correspondence. Specifically, the transmission assembly 27 includes a transmission rod 271, a transmission belt 272 and a transmission wheel 273, and the carrier 23 includes a bottom shell 231 and a cover plate 232, the bottom shell 231 is connected and communicated with the rotating cylinder 22, and the cover plate 232 is connected with the bottom shell 231. Two transmission rods 271 are arranged in the rotating cylinder 22 at intervals, one end of each transmission rod 271 is connected to the corresponding second driving member 26 in transmission, the other end of each transmission rod 271 extends into the bottom shell 231 of the carrier 23 and is arranged at intervals with the carrier 21, the transmission wheel 273 is rotatably arranged in the carrier 23 and connected to the corresponding carrier 21, the transmission belt 272 is sleeved between the other end of the corresponding transmission rod 271 and the corresponding transmission wheel 273, and the transmission belt 272, the transmission rod 271 and the transmission wheel 273 can be meshed. In this way, the second driving member 26 drives the transmission rod 271 to rotate, the transmission rod 271 drives the transmission belt 272 to rotate, the transmission belt 272 drives the transmission wheel 273 to rotate, and the transmission wheel 273 drives the carrier 21 and the workpiece 200 to rotate.

[0135] The sandblasting equipment 100 provided in the embodiment of the present application realizes the simultaneous sandblasting of the three surfaces of the workpiece 200 and the sandblasting of the entire area of ​​the workpiece 200 through the coordinated cooperation of the sandblasting chamber 10, the supporting mechanism 20, the spray gun assembly and the sand supply mechanism 40, and does not need to frequently load and unload materials to adjust the position of the workpiece 200, thereby reducing the time of loading and unloading materials and improving the sandblasting efficiency; since the spray gun mechanism 30 can sandblast the three surfaces of the workpiece 200 at the same time, it is unnecessary to frequently load and unload materials manually, which is helpful to reduce the labor intensity of manual labor; since it is unnecessary to frequently load and unload materials manually, the placement position of the workpiece 200 is relatively stable, which is helpful to improve the sandblasting yield; the sandblasting equipment 100 sandblasts the workpiece 200 in the sandblasting space 11, avoiding the splashing of sand to pollute the environment and causing dust hazards to the operators; sand is continuously supplied to the spray gun mechanism 30 through the return sand pipe 41, the cyclone separator 42 and the sand diverter 43 of the sand supply mechanism 40, thereby improving the utilization rate of sand and saving sand costs.

[0136] The sandblasting equipment 100 provided in the embodiment of the present application further provides a stable and sufficient gas flow to each spray gun through the coordinated cooperation of the spray gun gas tank 50, thereby ensuring the spray pressure of each spray gun.

[0137] The sandblasting equipment 100 provided in the embodiment of the present application further enables the sand at both ends of the sandblasting space 11 to flow back to the sand return pipe 41 through the coordinated cooperation of the spiral auger 60, thereby ensuring the reuse of the sand and saving the sand.

[0138] The sandblasting device 100 provided in the embodiment of the present application further ensures that the sand material in the sandblasting device 100 is sufficient through the coordinated cooperation of the sand adding mechanism 70 .

[0139] The sandblasting equipment 100 provided in the embodiment of the present application further processes the waste gas discharged from the cyclone separator 42 through the coordinated cooperation of the dust removal mechanism 80, thereby achieving pollution-free treatment of the waste gas.

[0140] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A sandblasting device for spraying sand toward a first surface of a workpiece, a second surface disposed opposite to the first surface, and an outer side surface connected between the first surface and the second surface, characterized in that: include: A sandblasting room, which has a space for sandblasting; A bearing mechanism is arranged in the sandblasting room, comprising a bearing member that can move and rotate in and outside the sandblasting space, and the bearing member is used to bear and drive the workpiece to rotate; a spray gun mechanism, arranged in the sandblasting space, comprising a movable first spray gun, a second spray gun and a third spray gun, wherein the first spray gun is used to spray sand material toward the first surface, the second spray gun is used to spray sand material toward the second surface, and the third spray gun is used to spray sand material toward the outer surface, the first spray gun and the second spray gun are symmetrically arranged, and the first spray gun and the second spray gun are located on the same side of the third spray gun; A sand supply mechanism comprises a return sand pipe, a cyclone separator and a sand material diverter, wherein one end of the return sand pipe is connected to the sand blasting chamber and communicated with the sand blasting space, the other end of the return sand pipe is communicated with a feed port of the cyclone separator, the cyclone separator is arranged in the sand blasting chamber, the sand material diverter is arranged in the sand blasting space and the feed port of the sand material diverter is communicated with a feed port of the cyclone separator, the diverting port of the sand material diverter is respectively communicated with the first spray gun, the second spray gun and the third spray gun, wherein the sand in the sand blasting space flows back to the cyclone separator through the return sand pipe, flows into the sand material diverter after separation and processing by the cyclone separator, and is respectively diverted to the first spray gun, the second spray gun and the third spray gun through the sand material diverter.

2. The sandblasting device according to claim 1, characterized in that The spray gun mechanism also includes a moving component and a connecting piece. The moving component is arranged in the sandblasting chamber. The connecting piece is connected to the moving component to move under the drive of the moving component. The first spray gun, the second spray gun and the third spray gun are all connected to the connecting piece and move synchronously with the connecting piece.

3. The sandblasting equipment according to claim 1, characterized in that The spraying angles of the first spray gun and the second spray gun are adjustable.

4. The sandblasting equipment according to claim 1, characterized in that The sandblasting equipment also includes a spray gun gas tank, which has an air inlet and multiple gas distribution ports. The air inlet of the spray gun gas tank is used to connect with an external gas source, and the multiple gas distribution ports of the spray gun gas tank are respectively connected with the first spray gun, the second spray gun and the third spray gun, so that the first spray gun, the second spray gun and the third spray gun can spray sand mixed with gas.

5. The sandblasting equipment according to claim 1, characterized in that The sandblasting chamber also has a return port, which is connected to the bottom of the sandblasting space and to the sand return pipe. The sandblasting equipment also includes a spiral auger, which is rotatably arranged in the sandblasting chamber and located at the bottom of the sandblasting space. The spiral auger is used to rotate to make the sand in the sandblasting space flow to the return port.

6. The sandblasting equipment according to claim 1, characterized in that The sandblasting equipment further comprises a sand adding mechanism, which is communicated with the sand returning pipeline and is used for adding sand material into the sand returning pipeline.

7. The sandblasting device according to claim 6, characterized in that The sand supply mechanism also includes a material level detector, which is arranged at the discharge port of the cyclone separator. The material level detector is coupled to the sand adding mechanism. The material level detector is used to detect the material level of the sand at the discharge port of the cyclone separator and transmit the detection information to the sand adding mechanism, so that the sand adding mechanism adds sand into the return sand pipe.

8. The sandblasting equipment according to claim 1, characterized in that The carrying mechanism also includes a rotating cylinder, a carrier, a carrier plate, a first driving member, a second driving member and a transmission assembly. One end of the rotating cylinder is rotatably arranged in the sandblasting chamber, the other end of the rotating cylinder is connected to the carrier, the carrier plate is connected to the rotating cylinder, the bearing member is rotatably arranged on the carrier, the first driving member is arranged on the carrier plate and connected to the rotating cylinder to drive the rotating cylinder to rotate, the second driving member is arranged on the carrier plate and spaced from the first driving member, the transmission assembly is arranged in the rotating cylinder and in the carrier, and the transmission assembly is connected between the second driving member and the bearing member, and the second driving member drives the bearing member to rotate through the transmission assembly.

9. The sandblasting device according to claim 8, characterized in that The transmission assembly includes a transmission rod, a transmission belt and a transmission wheel. One end of the transmission rod is transmission-connected to the second driving member, the other end of the transmission rod extends into the carrier and is spaced apart from the support member, the transmission wheel is rotatably disposed in the carrier and connected to the support member, and the transmission belt is sleeved between the other end of the transmission rod and the transmission wheel.

10. The sandblasting equipment according to claim 1, characterized in that The sandblasting equipment also includes a dust removal mechanism, which is arranged on one side of the sandblasting chamber and is connected to the exhaust port of the cyclone separator. The dust removal mechanism is used to provide suction for the cyclone separator so that the sand in the sandblasting space can flow back to the cyclone separator through the sand return pipe. The dust removal mechanism is also used to process the exhaust gas discharged through the exhaust port of the cyclone separator.

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