Liquid automatic sandblasting equipment

Abstract

The present application provides a liquid automatic sandblasting device, which relates to the field of workpiece sandblasting and polishing equipment, including a sandblasting chamber, a sandblasting device, a recovery chamber, a filtering device, and a flushing device. The sandblasting device is arranged in the sandblasting chamber, and the sandblasting device is used to sandblast the workpiece. The recovery chamber is located below the sandblasting chamber, and the recovery chamber is used to collect the sand-water mixture during the sandblasting process. The filtering device is connected to the recovery chamber, and the filtering device is used to filter the sand-water mixture in the recovery chamber. The flushing device is connected to the filtering device, and the flushing device is used to spray the clean water filtered by the filtering device onto the surface of the workpiece after the sandblasting process. The sand-water mixture in the recovery chamber is filtered by the filtering device, and the clean water filtered by the filtering device is sprayed onto the surface of the workpiece by the flushing device, so as to remove the abrasive remaining on the surface of the workpiece, thereby effectively flushing and cleaning the abrasive remaining on the surface of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of workpiece sandblasting and polishing equipment, and in particular to liquid automatic sandblasting equipment. Background Art

[0002] Sandblasting is a process for surface treatment of workpieces. Using compressed air as a power source, a high-speed jet beam is used to project abrasive material (copper ore sand, quartz sand, corundum, iron sand, or sea sand) onto the surface of the workpiece, altering its appearance or shape. The impact and cutting action of the abrasive on the workpiece surface imparts a certain degree of cleanliness and varying degrees of roughness, improving the mechanical properties of the workpiece surface.

[0003] Sandblasting machines are divided into dry sandblasting machines and liquid sandblasting machines. Liquid sandblasting machines mix sand (abrasive) with water, and then use a grinding liquid pump and compressed air to spray it at high speed through a spray gun onto the workpiece to achieve the purpose of cleaning and finishing the part surface. Liquid sandblasting machines have high sandblasting efficiency, low abrasive consumption, and can improve the surface finish of the workpiece.

[0004] After the workpiece is sandblasted by a liquid sandblasting machine, a certain amount of abrasive will remain on the surface of the workpiece. The related technology is to fix an air jet tube in the sandblasting chamber of the liquid sandblasting machine, and fix a number of air nozzles on the air jet tube. The air jet tube is connected to an air compressor. After the workpiece is sandblasted in the sandblasting chamber, the air compressor is started to spray compressed air toward the workpiece through the air jet tube and the air nozzle to blow away the abrasive remaining on the surface of the workpiece. However, the method of using compressed air to blow away the abrasive is less effective in removing the residual abrasive. After the blowing treatment, a certain amount of abrasive still remains on the surface of the workpiece. In order to solve the above technical problems, the related technology uses an external water source to clean the workpiece after sandblasting to remove the abrasive remaining on the surface of the workpiece. However, the use of an external water source will cause a large amount of water resource waste, which is not very environmentally friendly. Summary of the Invention

[0005] The purpose of this application is to provide a liquid automatic sandblasting device to solve the problem that the liquid sandblasting machine in the related art uses an external water source, which causes a large amount of water waste and is not very environmentally friendly.

[0006] The present application provides a liquid automatic sandblasting device that adopts the following technical solution:

[0007] A liquid automatic sandblasting device includes a sandblasting chamber, a sandblasting device, a recovery chamber, a filtering device and a flushing device. The sandblasting device is arranged in the sandblasting chamber, and the sandblasting device is used to sandblast the workpiece. The recovery chamber is located below the sandblasting chamber, and the recovery chamber is used to collect the sand-water mixture during the sandblasting process. The filtering device is connected to the recovery chamber, and the filtering device is used to filter the sand-water mixture in the recovery chamber. The flushing device is connected to the filtering device, and the flushing device is used to spray the clean water generated by the filtering device onto the surface of the workpiece after the sandblasting process.

[0008] By adopting the above technical solution, the sand-water mixture in the recovery bin is filtered by the filtering device, and the clean water generated by the filtering device is sprayed onto the surface of the workpiece through the flushing device to remove the residual abrasive on the surface of the workpiece, thereby achieving a better flushing and cleaning effect on the residual abrasive on the surface of the workpiece.

[0009] Optionally, the sandblasting device includes a sandblasting main pipe, a sandblasting hose, a sandblasting head, an abrasive liquid pump and a swinging mechanism. The swinging mechanism is arranged on the sandblasting bin, the sandblasting head is connected to the sandblasting main pipe through the sandblasting hose, the sandblasting head is arranged in the sandblasting bin, the swinging mechanism is connected to the sandblasting head, the swinging mechanism is used to drive the sandblasting head to swing, and the abrasive liquid pump is connected to the sandblasting main pipe and the inside of the recovery bin.

[0010] By adopting the above technical solution, the sandblasting head is driven to swing by the swing mechanism, thereby improving the uniformity of sandblasting the workpiece.

[0011] Optionally, the swing mechanism includes a swing motor, a rotating disk, an adjusting rod, a connecting rod, a swing shaft and a rocker arm, the swing motor is fixed on the sandblasting chamber, the rotating disk is fixedly connected to the output shaft of the swing motor, an arc groove is provided on the rotating disk, one end of the adjusting rod is rotatably connected to the rotating disk, the other end of the adjusting rod is provided with a pin, the pin is passed through the arc groove, the pin can slide along the arc groove, a locking piece is provided on the pin, the locking piece is used to limit the position of the pin in the arc groove, the swing shaft is rotatably passed through the sandblasting chamber, the sandblasting head is fixed on the swing shaft, the rocker arm is fixedly connected to the swing shaft, and the two ends of the connecting rod are hinged to the adjusting rod and the rocker arm respectively.

[0012] By adopting the above technical solution and arranging structures such as an adjusting rod, the swing amplitude of the swing shaft can be adjusted.

[0013] Optionally, the flushing device includes a cleaning chamber, a spray pipe and a cleaning water pump. The cleaning chamber is connected to the sandblasting chamber. The spray pipe is arranged in the cleaning chamber. A water spray head is provided on the spray pipe. The cleaning water pump is connected to the spray pipe and the filtering device. The cleaning water pump is used to pump the clean water filtered by the filtering device to the spray pipe, and spray it from the water spray head to clean the workpiece. The recovery chamber extends to the bottom of the cleaning chamber and is used to collect the sand and water mixture after the workpiece is cleaned.

[0014] By adopting the above technical solution, the recovery bin is extended to the bottom of the cleaning bin, and the sand-water mixture after cleaning can fall into the recovery bin, so that the sand-water mixture after cleaning the workpiece can be recycled.

[0015] Optionally, it also includes a workpiece feeding bin, a dust-proof curtain and a conveying device. The workpiece feeding bin is connected to the sandblasting bin. The conveying device includes a conveyor belt, a roller and a conveying motor. The roller is rotatably arranged on the recovery bin. The conveying motor is connected to the roller. The conveyor belt is wound around the roller. The conveyor belt is located above the recovery bin. The workpiece feeding bin, the sandblasting bin and the cleaning bin are located above the conveyor belt. The dust-proof curtain is respectively arranged at the inlet end of the workpiece feeding bin, the connecting port between the workpiece feeding bin and the sandblasting bin, the connecting port between the sandblasting bin and the cleaning bin, and the outlet end of the cleaning bin.

[0016] By adopting the above technical solution and setting a dust-proof curtain, it is possible to prevent external dust and other impurities from entering the sandblasting chamber, and at the same time prevent the sand-water mixture during the sandblasting process from leaking out of the sandblasting chamber.

[0017] Optionally, it also includes a defogger fan, a defogger air duct, a filter plate and a wiper, the defogger air duct is connected to the feeding bin and the sandblasting bin respectively, the defogger fan is connected to the defogger air duct, the filter plate is fixed in the recovery bin and is located below the sandblasting bin, an observation window is provided on the side wall of the sandblasting bin, the wiper is provided on the sandblasting bin, and the wiper is used to scrape and clean the observation window.

[0018] By adopting the above technical solution, the observation window can be scraped and cleaned by the wiper, thereby ensuring a clear view through the observation window.

[0019] Optionally, the filtering device includes a filter bin, a filter cartridge, a transverse partition, a first vertical partition, a second vertical partition and a filter screen, the filter bin is provided with a filter chamber and a clean water chamber that are interconnected, the filter screen is fixed at the connecting port between the filter chamber and the clean water chamber, the first vertical partition and the second vertical partition are fixed in the filter chamber, the height of the top of the second vertical partition is lower than the height of the top of the first vertical partition, the lower part of the first vertical partition is provided with a submerged flow port, the transverse partition is fixed to the inner side wall of the filter bin and the side wall of the first vertical partition away from the second vertical partition, the filter cartridge is fixedly penetrated on the transverse partition, the filter chamber above the transverse partition is connected to the sandblasting main pipe, and the clean water chamber is connected to the cleaning water pump.

[0020] By adopting the above technical solution and arranging the first vertical partition plate, the second vertical partition plate, the filter cartridge and the filter screen and other structures, a good sedimentation and filtering effect can be achieved on the sand-water mixture.

[0021] Optionally, the filtering device also includes a pre-sand filter mechanism and a backwash mechanism, the pre-sand filter mechanism is respectively connected to the filter chamber above the diaphragm and the sandblasting main pipe, the pre-sand filter mechanism is used to separate the sand and water mixture from the sandblasting main pipe, and transport the separated liquid to the filter chamber above the diaphragm, the backwash mechanism is arranged on the pre-sand filter mechanism, and the backwash mechanism is used to backwash the pre-sand filter mechanism to prevent the pre-sand filter mechanism from being blocked.

[0022] By adopting the above technical solution, the sand-water mixture can be pre-filtered before entering the filter chamber through the pre-sand filtering mechanism, thereby improving the filtering effect of the sand-water mixture.

[0023] Optionally, the pre-sand filter mechanism includes a feed pipe, a spiral conveying blade, a drive motor, a conveying cylinder, a drying module, a screen plate, a water tank and a conveying pump, one end of the feed pipe is connected to the sandblasting main pipe, and the other end of the feed pipe is connected to the conveying cylinder, the spiral conveying blade is rotatably arranged in the conveying cylinder, the drive motor is connected to the spiral conveying blade, the drying module is arranged in the conveying cylinder, the screen plate is fixed at the bottom of the conveying cylinder, the water tank is arranged below the screen plate, the water inlet end of the conveying pump is connected to the water tank, the water outlet end of the conveying pump is connected to the filter chamber above the diaphragm, and the backwashing mechanism is used to backwash the screen plate.

[0024] By adopting the above technical solution, the sand-water mixture entering the conveying cylinder can be filtered through the screen plate, and the filtered sand can be dried through the drying module for subsequent use.

[0025] Optionally, the backwashing mechanism includes a baffle, a spring, a sliding cover, a flushing nozzle and a sliding drive assembly. A discharge hole is provided at the bottom of the conveying cylinder, and the sliding cover slides and seals under the screen plate. The sliding drive assembly is connected to the sliding cover for driving the sliding cover to slide along the axial direction of the conveying cylinder. The sliding cover is provided with a drop hole that can coincide with the discharge hole. The flushing nozzle is fixed on the sliding cover, and the flushing nozzle is used to backwash the screen plate. The baffle slides against the outer bottom wall of the conveying cylinder, and the spring is provided on the conveying cylinder and acts on the baffle. The spring is used to push the baffle to move below the discharge hole, and the sliding cover abuts against the baffle. The sliding cover can limit the movement of the baffle toward the discharge hole.

[0026] By adopting the above technical solution and arranging structures such as baffles and sliding covers, it is possible to quickly switch between filtering conditions and backwashing conditions.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The liquid automatic sandblasting equipment of the present application adopts a closed-circuit water circulation. The sand-water mixture generated by the sandblasting process falls into a recovery bin. The sand-water mixture in the recovery bin is filtered by a filtering device to effectively separate the sand and water. The clean water generated by the filtering device is sprayed onto the surface of the workpiece through a flushing device for cleaning the workpiece, thereby eliminating the need for an external water source and effectively reducing waste.

[0029] 2. The second vertical partition is used for isolation to form a sedimentation area in the filter chamber. The water and a small amount of fine sand separated by the filter cartridge are precipitated in the sedimentation area. Clean water is used for cleaning, and the fine sand sludge is settled, so that the waste sand can be removed. While removing the waste sand, sand is replenished regularly to avoid the problem of deteriorating cleaning efficiency and effect caused by the abrasive becoming finer due to long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of Example 1 of the present application;

[0031] Figure 2 for Figure 1 sectional view of

[0032] Figure 3 for Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0033] Figure 4 for Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0034] Figure 5 It is a structural diagram of the swing mechanism;

[0035] Figure 6 It is a structural diagram of the linkage mechanism;

[0036] Figure 7 is a cross-sectional view of the filtering device;

[0037] Figure 8 It is a cross-sectional view of the pre-sand filter mechanism.

[0038] In the figure,

[0039] 10. Sandblasting chamber; 11. Observation window;

[0040] 20. Sandblasting device; 21. Sandblasting main pipe; 22. Sandblasting port; 23. First pipeline; 24. Grinding fluid pump;

[0041] 25. Swing mechanism; 251. Swing motor; 252. Rotating disk; 2521. Arc slot; 253. Adjusting rod; 2531. Latch; 254. Connecting rod; 255. Swing shaft; 256. Swing arm;

[0042] 26. Linkage mechanism; 261. Rocker; 262. Connecting rod; 30. Recovery bin;

[0043] 40. Filter device; 41. Filter chamber; 411. Filter chamber; 412. Clean water chamber; 413. Second pipe; 414. Third pipe;

[0044] 42. Filter cartridge; 43. Horizontal partition; 44. First vertical partition; 441. Underflow port; 45. Second vertical partition; 46. Filter screen;

[0045] 47. Pre-sand filter mechanism; 471. Feed pipe; 472. Spiral conveyor blade; 473. Drive motor; 474. Conveying cylinder; 4741. Discharge hole; 4742. Limit hole; 475. Drying module; 477. Screen plate; 478. Water tank; 479. Conveying pump;

[0046] 48. Backwash mechanism; 481. Baffle; 4811. Slide rod; 482. Spring; 483. Slide cover; 4831. Dropping hole; 484. Flushing nozzle; 485. Screw; 486. Screw motor; 487. Bracket; 4871. Guide rod; 488. Slide seat; 4881. Guide hole; 4882. Screw hole;

[0047] 50. Flushing device; 51. Cleaning chamber; 52. Spraying pipe; 521. Spraying head; 53. Cleaning water pump;

[0048] 60. Infeed bin; 70. Dust screen;

[0049] 80. Conveying device; 81. Conveyor belt; 82. Roller; 83. Conveying motor;

[0050] 90. Demisting air duct; 100. Filter plate; 110. Wiper. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0052] The embodiment of the present application discloses a liquid automatic sandblasting device.

[0053] Example 1

[0054] Reference Figure 1 and Figure 2 A liquid automatic sandblasting device includes a sandblasting chamber 10, a sandblasting device 20, a recovery chamber 30, a filtering device 40, a flushing device 50, a workpiece feeding chamber 60, a dust curtain 70, a conveying device 80, a demisting fan, a demisting air duct 90, a filter plate 100 and a wiper 110. The workpiece feeding chamber 60 is connected to the sandblasting chamber 10. The workpiece can be fed into the sandblasting chamber 10 through the workpiece feeding chamber 60. The sandblasting device 20 is arranged in the sandblasting chamber 10. The sandblasting device 20 is used to perform sandblasting on the workpiece. Sandblasting: An observation window 11 is provided on the side wall of the sandblasting chamber 10, through which the sandblasting situation of the workpiece can be observed. A wiper 110 is provided on the sandblasting chamber 10, and the observation window 11 can be scraped and cleaned by the wiper 110 to ensure a clear line of sight. The defogger duct 90 is respectively connected to the feed chamber 60 and the sandblasting chamber 10, and the defogger fan is connected to the defogger duct 90. The feed chamber 60 and the inside of the sandblasting chamber 10 can be defogged through the defogger fan and the defogger duct 90.

[0055] The recovery bin 30 is located below the sandblasting bin 10. The recovery bin 30 is used to collect the sand-water mixture during the sandblasting process. The filtering device 40 is connected to the recovery bin 30. The filtering device 40 is used to filter the sand-water mixture in the recovery bin 30. The flushing device 50 is connected to the filtering device 40. The flushing device 50 is used to spray the clean water generated by the filtering device 40 onto the surface of the workpiece after sandblasting.

[0056] When the liquid automatic sandblasting equipment of the present application performs sandblasting on a workpiece, the workpiece is fed from the workpiece feeding bin 60 into the sandblasting bin 10, and the workpiece is sandblasted by the sandblasting device 20. The sand and water mixture generated by the sandblasting falls into the recovery bin 30. The filter plate 100 is fixed in the recovery bin 30 and is located below the sandblasting bin 10. The falling sand and water mixture can be filtered by the filter plate 100 to prevent impurities falling off the workpiece during the sandblasting process from entering the recovery bin 30 below the filter plate 100. The sand-water mixture in the recovery bin 30 is filtered by the filtering device 40. After the sandblasting is completed, the clean water generated by the filtering device 40 is sprayed onto the surface of the workpiece through the flushing device 50 to flush the workpiece and remove the residual abrasive on the surface of the workpiece. Since the spray cleaning method is adopted, the residual abrasive on the surface of the workpiece can be better flushed. Compared with the method of using compressed air to blow and remove the abrasive in the related art, the removal effect of the residual abrasive can be improved to a certain extent, and the residual amount of abrasive on the surface of the workpiece after sandblasting can be effectively reduced.

[0057] Reference Figure 2 and Figure 3 The conveying device 80 includes a conveyor belt 81, a roller 82, and a conveying motor 83. The roller 82 is rotatably mounted on the recovery bin 30. The conveying motor 83 is connected to the roller 82. The conveyor belt 81 is wound around the roller 82. The conveyor belt 81 is located above the recovery bin 30. The conveying device 80 can be used to convey workpieces that require sandblasting from the feed bin 60 to the sandblasting bin 10 for sandblasting. After sandblasting, the workpieces are then conveyed to the washing device 50 for cleaning. When conveying the workpieces, the conveying motor 83 drives the roller 82 to rotate, which in turn drives the conveyor belt 81 to operate. The workpieces that require sandblasting are placed on the conveyor belt 81 for conveyance.

[0058] Reference Figure 1 、 Figure 2 and Figure 4The sandblasting device 20 includes a sandblasting main pipe 21, a sandblasting hose, a sandblasting head, an abrasive liquid pump 24, and a swing mechanism 25. The swing mechanism 25 is provided on the sandblasting chamber 10. The sandblasting head is connected to the sandblasting main pipe 21 through the sandblasting hose. More specifically, a sandblasting port 22 is provided on the sandblasting main pipe 21, and the sandblasting head is connected to the sandblasting port 22 through the sandblasting hose. The sandblasting head is provided in the sandblasting chamber 10, and the swing mechanism 25 is connected to the sandblasting head. The swing mechanism 25 is used to drive the sandblasting head to swing. The abrasive liquid pump 24 is connected to the sandblasting main pipe 21 and the interior of the recovery chamber 30. More specifically, the liquid inlet end of the abrasive liquid pump 24 is connected to the interior of the recovery chamber 30, and the liquid outlet end of the abrasive liquid pump 24 is connected to the sandblasting main pipe 21 through the first pipe 23. After the workpiece placed on the conveyor belt 81 is transported to the sandblasting chamber 10, the sand-water mixture in the recovery chamber 30 is pumped to the sandblasting main pipe 21 through the grinding liquid pump 24. Then, the sand-water mixture flows through the sandblasting port 22 and the sandblasting hose in sequence, and is sprayed out from the sandblasting head to hit the surface of the workpiece, thereby sandblasting the workpiece.

[0059] Reference Figure 4 and Figure 5 In order to improve the uniformity of sandblasting, the sandblasting head can be driven to swing by the swing mechanism 25 during sandblasting. The specific structure of the swing mechanism 25 and the specific connection relationship between the swing mechanism 25 and the sandblasting chamber 10 and the sandblasting head are as follows: the swing mechanism 25 includes a swing motor 251, a rotating disk 252, an adjusting rod 253, a connecting rod 254, a swing shaft 255 and a swing rod 256. The swing motor 251 is fixed on the sandblasting chamber 10, the rotating disk 252 is fixedly connected to the output shaft of the swing motor 251, the rotating disk 252 is provided with an arc groove 2521, the adjusting rod 253 is fixedly connected to the output shaft of the swing motor 251, the rotating disk 252 is provided with an arc groove 2521, and the adjusting rod 253 is fixedly connected to the output shaft of the swing motor 251. One end of the adjusting rod 253 is rotatably connected to the rotating disk 252, and the other end of the adjusting rod 253 is provided with a pin 2531, which is inserted into the arc groove 2521 and can slide along the arc groove 2521. A locking piece is provided on the pin 2531, which is used to limit the position of the pin 2531 in the arc groove 2521. The swing shaft 255 is rotatably inserted into the sandblasting chamber 10, and the sandblasting head is fixed on the swing shaft 255. The rocker arm 256 is fixedly connected to the swing shaft 255, and the two ends of the connecting rod 254 are hinged to the adjusting rod 253 and the rocker arm 256 respectively.

[0060] The swing motor 251 can drive the rotating disk 252 and the adjusting rod 253 to rotate, thereby driving the swing shaft 255 to rotate back and forth through the connecting rod 254 and the swing rod 256, and further driving the sandblasting head fixed on the swing shaft 255 to swing. The swing mechanism 25 of the present application can adjust the swing amplitude of the swing shaft 255. The specific adjustment principle is as follows: adjust the position of the pin 2531 in the arc groove 2521 to make the adjusting rod 253 rotate around the rotation connection axis between it and the rotating disk 252, thereby adjusting the distance between the hinge point of the connecting rod 254 and the adjusting rod 253 and the center of the rotating disk 252, and then fix the pin 2531 to the rotating disk 252 through a locking member. The locking member can be a nut, and a stud can be set on the pin 2531, and the nut is screwed to the stud. By tightening the nut, the nut is pressed against the rotating disk 252 to achieve locking. After adjusting the distance between the hinge point of the connecting rod 254 and the adjusting rod 253 and the center of the rotating disk 252, the swing amplitude of the swing shaft 255 can be adjusted.

[0061] Reference Figure 3 and Figure 6 To increase the sandblasting coverage of the workpiece, multiple sandblasting heads can be provided. Accordingly, multiple swing shafts 255 can be provided, with a sandblasting head fixedly mounted on each swing shaft 255. In this case, to simultaneously drive multiple swing shafts 255 to swing, one of the swing shafts 255 can be driven to swing by the swing mechanism 25, and the remaining swing shafts 255 can be driven to swing by the linkage mechanism 26. More specifically, the linkage mechanism 26 includes a rocker 261 and a connecting rod 262. The rocker 261 is fixedly connected to the remaining swing shafts 255, and the ends of the connecting rod 262 are hinged to the rocker 261 on the adjacent swing shaft 255.

[0062] Reference Figure 2 and Figure 3 After the workpiece is sandblasted in the sandblasting chamber 10, it is transported to the flushing device 50 through the conveying device 80 for cleaning. The specific structure of the flushing device 50 is as follows: the flushing device 50 includes a cleaning chamber 51, a spray pipe 52 and a cleaning water pump 53. The cleaning chamber 51 is connected to the sandblasting chamber 10. The spray pipe 52 is arranged in the cleaning chamber 51. The shape of the spray pipe 52 can be set to a door type. A plurality of water spray heads 521 are provided on the spray pipe 52. The cleaning water pump 53 is connected to the spray pipe 52 and the filtering device 40. The clean water filtered by the filtering device 40 is pumped to the spray pipe 52 through the cleaning water pump 53 and sprayed from the water spray head 521 to clean the workpiece. The recovery chamber 30 extends to the bottom of the cleaning chamber 51. The sand and water mixture after the workpiece is sprayed and cleaned falls into the recovery chamber 30, and the sand and water mixture is collected and reused.

[0063] Reference Figure 1 and Figure 7The specific structure of the filter device 40 and the specific connection relationship with the cleaning water pump 53 and the sandblasting main pipe 21 are as follows: the filter device 40 includes a filter chamber 41, a filter cartridge 42, a transverse partition 43, a first vertical partition 44, a second vertical partition 45 and a filter screen 46. The filter chamber 41 is provided with a filter chamber 411 and a clean water chamber 412 that are interconnected. The filter screen 46 is fixed at the communication port between the filter chamber 411 and the clean water chamber 412. The first vertical partition 44 and the second vertical partition 45 are fixed in the filter chamber 411. The top of the second vertical partition 45 The height is lower than the height of the top end of the first vertical partition 44. A submerged flow port 441 is provided at the lower part of the first vertical partition 44. The transverse partition 43 is fixedly connected to the inner wall of the filter bin 41 and the side wall of the first vertical partition 44 away from the second vertical partition 45. The filter cartridge 42 is fixedly penetrated on the transverse partition 43. The filter chamber 411 above the transverse partition 43 is connected to the sandblasting main pipe 21 through the second pipe 413. The clean water chamber 412 is connected to the water inlet end of the cleaning water pump 53. The water outlet end of the cleaning water pump 53 is connected to the spray pipe 52 through the third pipe 414.

[0064] During the process of sandblasting the workpiece in the sandblasting chamber 10, a part of the sand-water mixture in the sandblasting main pipe 21 is sprayed out from the sandblasting head, and the other part of the sand-water mixture enters the filter chamber 411 above the diaphragm 43 through the second pipe 413. The sand-water mixture is filtered by the filter cylinder 42 and reaches the filter chamber 411 below the diaphragm 43, and is precipitated in the filter chamber 411. Then the sand-water mixture passes through the subsurface flow port 441 and enters the space between the first vertical baffle 44 and the second vertical baffle 45. The upper clear liquid in the sand-water mixture after precipitation in the filter chamber 411 overflows from above the second vertical baffle 45 to the space between the second vertical baffle 45 and the filter screen 46, and enters the clean water chamber 412 after being filtered by the filter screen 46. Then, the clean water in the clean water chamber 412 is pumped to the spray pipe 52 through the third pipe 414 by the cleaning water pump 53, and is sprayed out from the water spray head 521 to clean the workpiece.

[0065] The working principle of the liquid automatic sandblasting equipment of this embodiment is as follows: the workpiece feeding chamber 60, the sandblasting chamber 10, and the cleaning chamber 51 are arranged above the conveyor belt 81, and the dust-proof curtain 70 is respectively arranged at the inlet end of the workpiece feeding chamber 60, the connection between the workpiece feeding chamber 60 and the sandblasting chamber 10, the connection between the sandblasting chamber 10 and the cleaning chamber 51, and the outlet end of the cleaning chamber 51. When a workpiece needs to be sandblasted, the workpiece is placed on the conveyor belt 81, which is driven by the conveying motor 83 to operate, so that the workpiece passes through the workpiece feeding chamber 60 and the dust-proof curtain 70 and enters the sandblasting chamber 10. Then, the sand-water mixture in the recovery chamber 30 is pumped to the sandblasting main pipe 21 by the grinding liquid pump 24 and sprayed out from the sandblasting head. At the same time, the sandblasting head is driven to swing by the swing mechanism 25 to sandblast the workpiece. The sand-water mixture in the sandblasting process is filtered by the filter plate 100 and falls into the recovery chamber 30. After the sandblasting process is completed, the workpiece is transported to the cleaning bin 51 by the conveying device 80, and the clean water filtered by the filter device 40 is pumped to the spray pipe 52 by the cleaning water pump 53, and sprayed from the spray head 521 to clean the workpiece. The sand and water mixture after spraying and cleaning falls into the recovery bin 30, and the sand and water mixture is collected and reused.

[0066] Example 2

[0067] Reference Figure 4 、 Figure 7 and Figure 8 , a liquid automatic sandblasting device, the difference between this embodiment and embodiment 1 is that the filter device 40 also includes a pre-sand filter mechanism 47 and a backwash mechanism 48. To improve the filtering effect, the pre-sand filter mechanism 47 can pre-filter the sand and water mixture before entering the filter chamber 411. More specifically, the pre-sand filter mechanism 47 is connected to the filter chamber 411 above the diaphragm 43 and the sandblasting main pipe 21 respectively. The pre-sand filter mechanism 47 is used to separate the sand and water mixture from the sandblasting main pipe 21 and transport the separated liquid to the filter chamber 411 above the diaphragm 43. After a long period of filtering, the pre-sand filter mechanism 47 may be clogged with sand. Therefore, a backwash mechanism 48 is provided on the pre-sand filter mechanism 47. The backwash mechanism 48 backwashes the pre-sand filter mechanism 47 to prevent the pre-sand filter mechanism 47 from being clogged.

[0068] The specific structure of the pre-filter sand mechanism 47 and the specific communication relationship between the filter chamber 411 and the sandblasting main pipe 21 are as follows: the pre-filter sand mechanism 47 includes a feed pipe 471, a spiral conveying blade 472, a drive motor 473, a conveying cylinder 474, a drying module 475, a screen plate 477, a water tank 478 and a conveying pump 479. One end of the feed pipe 471 is connected to the sandblasting main pipe 21, and the other end of the feed pipe 471 is connected to the conveying cylinder 474. The spiral conveying blade 472 is connected to the conveying cylinder 474. The rotating device 472 is arranged in the conveying cylinder 474, the driving motor 473 is connected to the spiral conveying blade 472, the drying module 475 is arranged in the conveying cylinder 474, the screen plate 477 is fixedly arranged at the bottom of the conveying cylinder 474, the water storage tank 478 is arranged below the screen plate 477, the water inlet end of the conveying pump 479 is connected to the water storage tank 478, and the water outlet end of the conveying pump 479 is connected to the filter chamber 411 above the diaphragm 43. The backwashing mechanism 48 is used to backwash the screen plate 477.

[0069] The sand-water mixture from the sandblasting main pipe 21 flows into the conveying cylinder 474 through the feed pipe 471, and the liquid part of the sand-water mixture passes through the mesh holes on the screen plate 477 and flows into the water tank 478, while the sand in the sand-water mixture is retained on the screen plate 477. The spiral conveying blade 472 is driven by the driving motor 473 to rotate, and the sand on the screen plate 477 is conveyed to the bottom of the drying module 475. The sand is dried and dehydrated by the drying module 475 for subsequent use, and the liquid collected in the water tank 478 is pumped into the filter chamber 411 by the conveying pump 479 for further filtration.

[0070] The specific structure of the backwash mechanism 48 and the specific connection relationship with the pre-sand filter mechanism 47 are as follows: the backwash mechanism 48 includes a baffle 481, a spring 482, a sliding cover 483, a flushing nozzle 484 and a sliding drive assembly. A discharge hole 4741 is opened at the bottom of the conveying cylinder 474. The sliding cover 483 slides and covers the bottom of the screen plate 477. The sliding drive assembly is connected to the sliding cover 483 to drive the sliding cover 483 to slide along the axis direction of the conveying cylinder 474. More specifically, the sliding drive assembly includes Screw 485, screw motor 486, bracket 487 and slide 488, bracket 487 is provided with guide rod 4871, slide 488 is provided with guide hole 4881 and screw hole 4882, slide 488 is slidably sleeved on guide rod 4871 through guide hole 4881, slide 488 is fixedly connected to slide cover 483, screw 485 is rotatably provided on bracket 487, and is screwed to slide 488 through screw hole 4882, screw motor 486 is fixedly provided on bracket 487 and connected to screw 485.

[0071] The sliding cover 483 is provided with a discharge hole 4831 that can coincide with the discharge hole 4741. The flushing nozzle 484 is fixed on the sliding cover 483. The flushing nozzle 484 is used to backwash the screen plate 477. The baffle 481 slides against the outer bottom wall of the conveying cylinder 474. The spring 482 is provided on the conveying cylinder 474 and acts on the baffle 481. More specifically, the baffle 481 is provided with a sliding rod 4811. The conveying cylinder 474 A limiting hole 4742 is provided on it, and the slide rod 4811 slides through the limiting hole 4742. The spring 482 is sleeved on the slide rod 4811. The two ends of the spring 482 act on the conveying cylinder 474 and the baffle 481 respectively. The spring 482 is used to push the baffle 481 to move to the bottom of the discharge hole 4741. The sliding cover 483 is in contact with the baffle 481, and the sliding cover 483 can limit the movement of the baffle 481 toward the discharge hole 4741.

[0072] The implementation principle of the liquid automatic sandblasting equipment of this embodiment is as follows: when the pre-sand filtering mechanism 47 separates the sand and water mixture from the sandblasting main pipe 21, the baffle 481 is in a position completely blocking the bottom of the discharge hole 4741. At this time, after the sand and water mixture enters the conveying cylinder 474, the liquid part of the sand and water mixture passes through the mesh on the screen plate 477 and falls into the slide cover 483, and falls into the water tank 478 from the discharge hole 4831. When it is necessary to backwash the screen plate 477, the slide cover 483 is driven by the sliding drive assembly to move along the axis of the conveying cylinder 474. When the slide cover 483 moves, it pushes the baffle 481 to overcome the elastic force of the spring 482 and move along the axis of the conveying cylinder 474, pushing the baffle 481 away from under the discharge hole 4741 until the discharge hole 4831 coincides with the discharge hole 4741, forming a structure as shown in the figure. Figure 8 Then, the flushing nozzle 484 is connected to the clean water source, and clean water is sprayed through the flushing nozzle 484 to backwash the screen plate 477. During the backwashing, the spiral conveying blade 472 is driven by the driving motor 473 to rotate, pushing the blockage flushed from the screen plate 477 to the discharge hole 4741, so that the blockage is discharged from the discharge hole 4741 and the drop hole 4831.

[0073] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A liquid automatic sandblasting device, characterized in that: The invention comprises a sandblasting chamber (10), a sandblasting device (20), a recovery chamber (30), a filtering device (40) and a flushing device (50), wherein the sandblasting device (20) is arranged in the sandblasting chamber (10), the sandblasting device (20) is used for performing sandblasting on a workpiece, the recovery chamber (30) is located below the sandblasting chamber (10), the recovery chamber (30) is used for collecting a sand-water mixture during the sandblasting process, the filtering device (40) is connected to the recovery chamber (30), the filtering device (40) is used for filtering the sand-water mixture in the recovery chamber (30), the flushing device (50) is connected to the filtering device (40), and the flushing device (50) is used for spraying clean water filtered by the filtering device (40) onto the surface of the workpiece after the sandblasting process; The sandblasting device (20) comprises a sandblasting main pipe (21), a sandblasting hose, a sandblasting head, an abrasive liquid pump (24) and a swing mechanism (25), wherein the swing mechanism (25) is arranged on the sandblasting chamber (10), the sandblasting head is connected to the sandblasting main pipe (21) via the sandblasting hose, the sandblasting head is arranged in the sandblasting chamber (10), the swing mechanism (25) is connected to the sandblasting head, and the swing mechanism (25) is used to drive the sandblasting head to swing, and the abrasive liquid pump (24) is connected to the sandblasting main pipe (21) and the inside of the recovery chamber (30); The flushing device (50) includes a cleaning chamber (51), a spray pipe (52) and a cleaning water pump (53), wherein the cleaning chamber (51) is communicated with the sandblasting chamber (10), the spray pipe (52) is arranged in the cleaning chamber (51), and a water spray head (521) is provided on the spray pipe (52), and the cleaning water pump (53) is connected to the spray pipe (52) and the filtering device (40), and the cleaning water pump (53) is used to pump clean water filtered by the filtering device (40) to the spray pipe (52), and spray the clean water from the water spray head (521) to clean the workpiece, and the recovery chamber (30) extends to the bottom of the cleaning chamber (51) and is used to collect the sand-water mixture after the workpiece is cleaned; The filtering device (40) comprises a filtering chamber (41), a filter cartridge (42), a transverse partition (43), a first vertical partition (44), a second vertical partition (45) and a filter screen (46). The filtering chamber (41) is provided with a filtering chamber (411) and a clean water chamber (412) which are communicated with each other. The filter screen (46) is fixedly arranged at the communication port between the filtering chamber (411) and the clean water chamber (412). The first vertical partition (44) and the second vertical partition (45) are fixedly arranged in the filtering chamber (411). The top of the second vertical partition (45) is fixedly arranged at the top of the filtering chamber (411). The height of the filter chamber (41) is lower than the height of the top of the first vertical partition (44), a submerged flow port (441) is provided at the lower portion of the first vertical partition (44), the transverse partition (43) is fixedly connected to the inner side wall of the filter chamber (41), and the side wall of the first vertical partition (44) away from the second vertical partition (45), the filter cartridge (42) is fixedly penetrated on the transverse partition (43), the filter chamber (411) above the transverse partition (43) is in communication with the sandblasting main pipe (21), and the clean water chamber (412) is in communication with the cleaning water pump (53); The filtering device (40) further comprises a pre-sand filtering mechanism (47) and a backwashing mechanism (48), wherein the pre-sand filtering mechanism (47) is respectively connected to the filter chamber (411) above the diaphragm (43) and the sandblasting main pipe (21), the pre-sand filtering mechanism (47) is used to separate the sand and water mixture from the sandblasting main pipe (21), and to transport the separated liquid to the filter chamber (411) above the diaphragm (43), and the backwashing mechanism (48) is provided on the pre-sand filtering mechanism (47), and is used to backwash the pre-sand filtering mechanism (47) to prevent the pre-sand filtering mechanism (47) from being blocked; The pre-sand filtering mechanism (47) includes a feed pipe (471), a spiral conveying blade (472), a driving motor (473), a conveying cylinder (474), a drying module (475), a screen plate (477), a water storage tank (478) and a conveying pump (479), one end of the feed pipe (471) is connected to the sandblasting main pipe (21), and the other end of the feed pipe (471) is connected to the conveying cylinder (474), the spiral conveying blade (472) is rotatably arranged in the conveying cylinder (474), and the driving motor (473) is connected to the The spiral conveying blade (472) is connected, the drying module (475) is arranged in the conveying cylinder (474), the screen plate (477) is fixedly arranged at the bottom of the conveying cylinder (474), the water storage tank (478) is arranged below the screen plate (477), the water inlet end of the conveying pump (479) is communicated with the water storage tank (478), the water outlet end of the conveying pump (479) is communicated with the filter chamber (411) above the transverse diaphragm (43), and the backwashing mechanism (48) is used to backwash the screen plate (477); The backwash mechanism (48) includes a baffle (481), a spring (482), a sliding cover (483), a flushing nozzle (484) and a sliding drive assembly. A discharge hole (4741) is provided at the bottom of the conveying cylinder (474). The sliding cover (483) is slidably sealed below the screen plate (477). The sliding drive assembly is connected to the sliding cover (483) and is used to drive the sliding cover (483) to slide along the axial direction of the conveying cylinder (474). The sliding cover (483) is provided with a drop hole (4831) that can overlap with the discharge hole (4741). The flushing nozzle (484) The flushing nozzle (484) is fixed on the sliding cover (483) and is used to backwash the screen plate (477). The baffle (481) slides against the outer bottom wall of the conveying cylinder (474). The spring (482) is provided on the conveying cylinder (474) and acts on the baffle (481). The spring (482) is used to push the baffle (481) to move below the discharge hole (4741). The sliding cover (483) abuts against the baffle (481). The sliding cover (483) can limit the baffle (481) from moving toward the discharge hole (4741).

2. The liquid automatic sandblasting equipment according to claim 1, characterized in that: The swing mechanism (25) comprises a swing motor (251), a rotating disk (252), an adjusting rod (253), a connecting rod (254), a swing shaft (255) and a swing rod (256), wherein the swing motor (251) is fixed on the sandblasting chamber (10), the rotating disk (252) is fixedly connected to the output shaft of the swing motor (251), the rotating disk (252) is provided with an arc groove (2521), one end of the adjusting rod (253) is rotatably connected to the rotating disk (252), the other end of the adjusting rod (253) is provided with a latch (2531), and the latch (25 31) is passed through the arc groove (2521), the latch (2531) can slide along the arc groove (2521), the latch (2531) is provided with a locking member, and the locking member is used to limit the position of the latch (2531) in the arc groove (2521), the swing shaft (255) is rotatably passed through the sandblasting chamber (10), the sandblasting head is fixed on the swing shaft (255), the rocker arm (256) is fixedly connected to the swing shaft (255), and the two ends of the connecting rod (254) are respectively hinged to the adjusting rod (253) and the rocker arm (256).

3. The liquid automatic sandblasting equipment according to claim 1, characterized in that: The invention also includes a feeding bin (60), a dust-proof curtain (70) and a conveying device (80), wherein the feeding bin (60) is connected to the sandblasting bin (10), and the conveying device (80) includes a conveyor belt (81), a roller (82) and a conveying motor (83), wherein the roller (82) is rotatably arranged on the recovery bin (30), the conveying motor (83) is connected to the roller (82), the conveyor belt (81) is wound around the roller (82), and the conveying motor (83) is connected to the roller (82). The conveyor belt (81) is located above the recovery bin (30), the feed bin (60), the sandblasting bin (10) and the cleaning bin (51) are located above the conveyor belt (81), and the dust-proof curtain (70) is respectively provided at the inlet end of the feed bin (60), the connecting port between the feed bin (60) and the sandblasting bin (10), the connecting port between the sandblasting bin (10) and the cleaning bin (51), and the outlet end of the cleaning bin (51).

4. The liquid automatic sandblasting equipment according to claim 3, characterized in that: The invention also includes a demisting fan, a demisting air duct (90), a filter plate (100) and a wiper (110), wherein the demisting air duct (90) is respectively connected to the feeding bin (60) and the sandblasting bin (10), the demisting fan is connected to the demisting air duct (90), the filter plate (100) is fixed in the recovery bin (30) and is located below the sandblasting bin (10), an observation window (11) is provided on the side wall of the sandblasting bin (10), and the wiper (110) is provided on the sandblasting bin (10), and the wiper (110) is used to scrape and clean the observation window (11).

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