A vortex shell vortex chamber automatic sand blasting shot blasting machine

Abstract

The utility model relates to the technical field of scroll production and processing, especially relates to a scroll vortex chamber automatic sand blasting shot blasting machine, including shot blasting box, the front side of the upper end of shot blasting box is set to the inclined plane, is provided with the open and close subassembly of automatic opening and closing on the inclined plane, is fixed with the filter platform in the shot blasting box, the filter platform top surface is fixed with the clamping assembly for stabilizing scroll workpiece, the upper portion of clamping assembly is provided with shot blasting subassembly, the filter platform below is provided with the screening collection mechanism, the screening collection mechanism not only can carry out dust removal in the shot blasting process, still can classify and collect the processing of mill scale and steel ball, the utility model's advantage lies in: can automatically carry out shot blasting treatment to scroll workpiece, reduces the labor intensity of staff, improves shot blasting quality and efficiency, can effectively realize dust removal, mill scale and steel ball's screening separation and anti -accumulation function in the shot blasting process, more practical.

Description

Technical Field

[0001] This utility model relates to the field of vortex shell production and processing technology, and in particular to an automatic sandblasting and shot blasting machine for vortex shell vortex chamber. Background Technology

[0002] Shot blasting machines use a shot blasting wheel to accelerate steel shot and other particles, giving them high kinetic energy. This energy is then projected onto the surface of the material being cleaned, generating impact and friction to remove scale, rust, dirt, and other impurities. Simultaneously, it improves surface roughness and enhances the surface adhesion and corrosion resistance of steel structures. In turbine manufacturing, the inner cavity of a qualified turbine needs to be bright and free of noticeable protrusions. Therefore, shot blasting is used to grind away any protrusions and burrs within the turbine's inner cavity to meet the production requirements.

[0003] The prior art, disclosed in CN222114739U, discloses a dust-removing shot blasting machine, including a square box and a shot blaster. The shot blaster is installed on the upper side wall inside the square box. A door is rotatably mounted on the front side of the square box. A placement platform is installed inside the square box, and a filter plate is installed inside the square box. Two fans and two filter boxes are installed on the rear side of the square box. A rotating shaft for controlling the shot blaster is rotatably mounted inside the square box. A first belt and a second belt are respectively provided between the rear side of the rotating shaft and the two fans. A motor is located on the rear side of the square box, and the output shaft of the motor is connected to the rear side of the rotating shaft. By placing the workpiece on the placement platform and starting the motor, the output shaft of the motor drives the shot blaster to rotate through the rotating shaft, thereby processing the workpiece. At the same time, the motor drives the fans on both sides to rotate in the same direction through the transmission components, filtering the dust inside the square box through the filter boxes and discharging it, thus preventing dust from damaging the working environment and protecting the user's physical and mental health.

[0004] However, the existing technology still has some shortcomings in its application: First, in real life, shot blasting of the inner cavity of a turbine housing is usually carried out by workers using a sandblasting nozzle. The sandblasting time and position require the experience of the operators to control. In particular, the shot blasting quality in places such as the turbine chamber is unstable, the labor intensity is high, the dust pollution at the work site is serious, and the efficiency is low. Second, in the existing technology, dust removal is carried out through a filter box, but there is no screening and filtration for steel shot and oxide scale waste. This means that the steel shot cannot be directly recycled, and steel shot and oxide scale waste will still accumulate on the filter plate, requiring workers to clean it regularly at a high frequency. Therefore, the existing technology needs to be further improved. Utility Model Content

[0005] The purpose of this invention is to provide an automatic shot blasting machine with a vortex chamber and vortex shell, in order to solve the problems in the existing technology such as unstable shot blasting quality, high labor intensity for workers, inability to automatically screen and filter oxide scale and steel shot, resulting in the inability to directly recycle steel shot and easy accumulation of steel shot and oxide scale.

[0006] The present invention adopts the following technical solution: an automatic shot blasting machine for vortex chambers of volute shells, including a shot blasting box, the upper front side of the shot blasting box is set as an inclined surface, an automatic opening and closing component is set on the inclined surface, a filter platform is set inside the shot blasting box, a clamping component for stabilizing the volute shell workpiece is fixedly set on the top surface of the filter platform, a shot blasting component is set above the clamping component, and a screening and collection mechanism is symmetrically set below the filter platform. The screening and collection mechanism can not only remove dust during the shot blasting process, but also classify and collect oxide scale and steel shot.

[0007] Optionally, the opening and closing assembly includes an opening on the inclined surface of the shot blasting chamber, with limit strips symmetrically arranged on both sides of the opening, a sliding plate slidably mounted on the two limit strips, a limit strip 2 between the two limit strips, a telescopic cylinder 1 mounted on the upper side of the limit strip 2, the telescopic cylinder 1 being parallel to the sliding plate and the inclined surface of the shot blasting chamber, the moving end of the telescopic cylinder 1 passing through and sliding on the upper side of the limit strip 2, a limit block being mounted on the top surface of the lower end of the sliding plate, and the moving end of the telescopic cylinder 1 being fixedly connected to the side of the limit block.

[0008] Optionally, the shot blasting assembly includes a vertical section and a horizontal section. The vertical section is used to perform shot blasting on the inner cavity of the vertical opening of the volute workpiece, and the horizontal section is used to perform shot blasting on the inner cavity of the horizontal opening of the volute workpiece. The vertical section and the horizontal section respectively include shot blasting tube one and shot blasting tube two. One end of shot blasting tube one and shot blasting tube two both extend out of the shot blasting box and are connected to the output end of the shot blaster. The end of shot blasting tube one, which is located inside the shot blasting box, can not only be height-adjusted according to the height of the volute workpiece, but can also be rotated. Shot blasting tube two can move in the horizontal direction.

[0009] Optionally, the screening and collection mechanism includes a screening section and a collection section. The screening section can extract the oxide scale from the vertically falling mixture of steel shot and oxide scale, thereby separating the oxide scale and steel shot, and simultaneously performing dust removal during the shot blasting process. The collection section can collect and store the oxide scale and steel shot separately.

[0010] Optionally, the screening section includes a suction hood located on the side of the shot blasting chamber, and the suction hood is connected to the interior of the shot blasting chamber. An exhaust fan is installed on the top surface of the suction hood, and the input end of the exhaust fan is connected to the end of the suction hood away from the shot blasting chamber through a pipe.

[0011] Optionally, a V-shaped guide plate is installed inside the shot blasting chamber, located below the filter platform and above the opening of the suction hood.

[0012] Optionally, a rectangular plate is fixed to the inner wall of the shot blasting chamber below the V-shaped guide plate. A cylinder is provided on the top surface of the rectangular plate, and a round rod is slidably provided inside the cylinder. A spring is provided between the bottom surface of the round rod and the cylinder. The top end of the round rod is fixedly connected to the bottom surface of the V-shaped guide plate. The V-shaped guide plate slides vertically on the inner wall of the shot blasting chamber. During the vertical swaying of the V-shaped guide plate, both ends of it are always above the suction hood.

[0013] Optionally, an electromagnet plate is symmetrically arranged inside the shot blasting chamber, and a collection frame is arranged below the electromagnet plate. The vertical section of the collection frame is located outside the electromagnet plate and has a set distance between it and the electromagnet plate. An openable and closable sliding door is arranged on the front side of the shot blasting chamber, and the position of the sliding door corresponds to the position of the collection frame.

[0014] Optionally, the collection unit includes a filter plate inclinedly disposed inside the suction hood. Only airflow can pass through the filter plate, which is inclined downwards. A slot is opened on the bottom surface of the suction hood, and a duct is disposed below the slot. A cylinder is detachably disposed on the duct, and a collection bag is disposed inside the cylinder. The collection unit also includes inclined plates symmetrically and inclinedly disposed inside the shot blasting chamber. The inclined plates are located below the opening of the suction hood, and the bottom ends of the two inclined plates are connected to the inlet of the steel shot circulation system.

[0015] Optionally, the output end of the exhaust fan is connected to a connecting pipe. One end of the connecting pipe is always closed, and the other end is equipped with a valve to control its opening and closing. Several fine nozzles are also installed on the connecting pipe, which extend into the shot blasting chamber and are positioned to match the top surface of the filter platform.

[0016] Compared with the prior art, this utility model has the following advantages: 1. The shot blasting chamber in this application is equipped with a shot blasting assembly, which includes a vertical part and a horizontal part. The vertical part and the horizontal part respectively include shot blasting pipe one and shot blasting pipe two. Shot blasting pipe one and shot blasting pipe two are both connected to the output end of the shot blaster. Shot blasting pipe one can be adjusted in height by telescopic cylinder two, and can also be rotated at any angle by the cooperation of motor, gear, gear ring and bending pipe, so as to automatically and efficiently perform high-quality shot blasting treatment on the vertically open inner cavity of the volute workpiece. Shot blasting pipe two can be moved in the horizontal direction by the cooperation of telescopic cylinder three and limiting part two, so as to perform high-quality shot blasting treatment on the horizontally open inner cavity of the volute workpiece. This realizes fully automated shot blasting treatment of volute workpieces, greatly reduces the labor intensity of workers, and greatly improves the shot blasting efficiency and shot blasting quality of the inner cavity of the volute workpiece.

[0017] 2. In this application, a screening and collection mechanism is provided at the bottom of the filtration platform. The screening and collection mechanism includes a screening section and a collection section. The screening section can extract the oxide scale from the vertically falling mixture of steel shot and oxide scale, thereby separating the oxide scale and steel shot, and simultaneously performing dust removal during the shot blasting process. The collection section can collect and store the oxide scale and steel shot separately, so that the separated steel shot can be directly recycled through the steel shot circulation system, improving the utilization efficiency of steel shot. It eliminates the need for manual post-screening, greatly reducing the labor intensity of workers and making it more practical.

[0018] 3. In this application, electromagnet plates are symmetrically arranged inside the shot blasting chamber, and a collection frame is arranged below the electromagnet plates. By setting the electromagnet plates, the magnetic force on the electromagnet plates can be controlled by controlling the magnitude of the current flowing through them. This not only further adsorbs the oxide scale mixed in the steel shot, enhancing the separation effect between the oxide scale and the steel shot, but also adsorbs and removes the steel shot with larger defects, allowing the more complete steel shot to enter the steel shot recycling system for continued use. This ensures the quality of shot blasting and makes it more practical.

[0019] 4. In this application, the output end of the exhaust fan is equipped with a connecting pipe. One end of the connecting pipe is always closed, and the other end is equipped with a valve to control its opening and closing. Several fine nozzles are also installed on the connecting pipe. The fine nozzles extend into the shot blasting chamber and are positioned to match the top surface of the filter platform. Through the connection pipe, valve, and fine nozzles, the exhaust fan can be used to remove dust and separate oxide scale while blowing off the steel shot or oxide scale accumulated on the filter platform. This ensures the shot blasting quality of the volute workpiece on the filter platform and avoids the need for regular cleaning by workers, reducing the labor intensity of workers and making it more practical. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the opening and closing component of this utility model; Figure 4 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the structure of some parts of the vertical section of this utility model; Figure 7 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the overall cross-sectional structure of the present invention. Figure 3 ; Figure 9 This utility model Figure 8 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 1. Shot blasting chamber; 2. Opening and closing assembly; 3. Filtering platform; 4. Clamping assembly; 5. Shot blasting assembly; 6. Screening and collecting mechanism; 7. Through port; 8. Limiting strip one; 9. Slide plate; 10. Limiting strip two; 11. Telescopic cylinder one; 12. Limiting block; 13. Vertical part; 14. Horizontal part; 15. Shot blasting pipe fitting one; 16. Telescopic cylinder two; 17. Bending pipe; 18. Sleeve one; 19. Limiting component one; 20. Motor; 21. Gear ring; 22. Gear; 23. Cover; 24. Shot blasting... 25. Mounting plate; 26. Telescopic cylinder; 27. Sleeve; 28. Limiting component; 29. ​​Screening section; 30. Collection section; 31. Suction hood; 32. Exhaust fan; 33. V-shaped guide plate; 34. Rectangular plate; 35. Cylinder; 36. Round rod; 37. Spring; 38. Electromagnetic plate; 39. Collection frame; 40. Sliding door; 41. Filter plate; 42. Groove; 43. Guide tube; 44. Cylinder body; 45. Inclined plate; 46. Connecting pipe; 47. Valve; 48. Fine nozzle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only a part of the embodiments disclosed in this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Various non-limiting embodiments of this utility model are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0024] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0025] Please see Figure 1-9The present invention will now be described in detail with reference to the accompanying drawings and embodiments: An automatic shot blasting machine for a vortex chamber includes a shot blasting box 1. The upper front side of the shot blasting box 1 is set as an inclined surface, and an automatic opening and closing assembly 2 is provided on the inclined surface. A filter platform 3 is fixedly installed inside the shot blasting box 1. A clamping assembly 4 for stabilizing the vortex workpiece is fixedly installed on the top surface of the filter platform 3. A shot blasting assembly 5 is arranged above the clamping assembly 4. A screening and collection mechanism 6 is symmetrically arranged below the filter platform 3. The screening and collection mechanism 6 can not only remove dust during the shot blasting process, but also classify and collect oxide scale and steel shot. The clamping assembly 4 mentioned above is prior art and will not be described in detail here.

[0026] Please see Figure 3 The opening and closing component 2 includes an opening 7 on the inclined surface of the shot blasting chamber 1. The opening 7 provides sufficient space for workers to replace the volute shell workpiece. Limiting strips 1 and 8 are symmetrically fixed on both sides of the opening 7. Sliding grooves are symmetrically opened on opposite sides of the limiting strips 1 and 9 are slidably arranged in the sliding grooves. A limiting strip 2 and 10 are fixedly arranged between the two limiting strips 1 and 8. A telescopic cylinder 1 and 11 are fixedly arranged on the upper side of the limiting strip 2 and 10. The telescopic cylinder 1 and 11 are parallel to the sliding plate 9 and the inclined surface of the shot blasting chamber 1. The moving end of the telescopic cylinder 1 and 11 passes through and slides on the upper side of the limiting strip 2 and 10. A limiting block 12 is fixedly arranged on the top surface of the lower end of the sliding plate 9. The moving end of the telescopic cylinder 1 and 11 is fixedly connected to the side of the limiting block 12.

[0027] When the volute workpiece needs shot blasting, firstly, the telescopic cylinder 11 is retracted, so that the moving end of the telescopic cylinder 11 moves the slide plate 9 upward along the slide groove through the limit block 12, thereby opening the passage 7. Then, the volute workpiece is stabilized on the clamping assembly 4, and then the telescopic cylinder 11 is extended to close the passage 7 again with the slide plate 9. Finally, the shot blasting assembly 5 is turned on to perform shot blasting.

[0028] Please see Figure 4-6 The shot blasting assembly 5 includes a vertical section 13 and a horizontal section 14. The vertical section 13 is used to perform shot blasting on the inner cavity of the vertical opening of the volute workpiece, and the horizontal section 14 is used to perform shot blasting on the inner cavity of the horizontal opening of the volute workpiece. The vertical section 13 and the horizontal section 14 respectively include a first shot blasting tube 15 and a second shot blasting tube 24. One end of both the first shot blasting tube 15 and the second shot blasting tube 24 extends out of the shot blasting box 1 and is connected to the output end of the shot blaster. The end of the first shot blasting tube 15, located inside the shot blasting box 1, can not only be height-adjusted according to the height of the volute workpiece, but can also rotate. The second shot blasting tube 24 can move in the horizontal direction. The shot blaster described above is prior art and will not be described in detail here.

[0029] Please see Figure 4-6The vertical section 13 also includes a telescopic cylinder 16 fixedly mounted on the top surface of the shot blasting chamber 1. A bent pipe 17 with a set angle is rotatably mounted at the end of the shot blasting tube 15. The bent pipe 17 communicates with the inner diameter of the shot blasting tube 15 and is positioned directly above the vertical opening of the volute workpiece. A sleeve 18 is fixedly mounted on the shot blasting tube 15, and a limiting member 19 is fixedly mounted on the sleeve 18. A motor 20 is fixedly mounted on the top surface of the limiting member 19, with the output end of the motor 20 penetrating and sliding on the top surface of the limiting member 19. A gear ring 21 is fixedly mounted on the vertical section of the bent pipe 17. The output end of the motor 20 is fixedly mounted on the top surface of the limiting member 19. A gear 22 is fixedly provided to mesh with the gear ring 21. A cover 23 is fixedly provided on the sleeve 18 to completely cover the motor 20, the gear ring and the gear 22. The cover 23 is rotatably engaged with the vertical section of the bent pipe 17. The moving end of the telescopic cylinder 26 is fixedly connected to the top surface of the cover 23. The horizontal part 14 also includes a mounting plate 25 fixedly provided on the filter platform 3. A telescopic cylinder 3 26 is fixedly provided on the mounting plate 25. A sleeve 27 is fixedly provided at the end of the shot blasting pipe 24. A limit member 28 is fixedly provided on the sleeve 27. The moving end of the telescopic cylinder 3 26 is fixedly connected to the side of the limit member 28.

[0030] During shot blasting, firstly, based on the height of the volute workpiece, the second telescopic cylinder 16 is extended, causing it to move along with the shot blasting tube and the bent tube 17 towards the workpiece. When the bent tube 17 extends into the vertical opening of the volute workpiece, the shot blaster is activated, causing high-speed steel shot to be ejected through the first shot blasting tube 15 and the second shot blasting tube 24. Then, the motor 20 is activated, driving the gear 22 to rotate. The rotation of the gear 22 drives the gear ring 21 to rotate, which in turn drives the bent tube 17 to rotate 360°, thus fully shot blasting the inner cavity of the vertical opening of the volute workpiece. At the same time, the third telescopic cylinder 26 is activated, pushing the second shot blasting tube 24 into the horizontal opening of the volute workpiece, thus fully shot blasting the inner cavity of the horizontal opening of the volute workpiece.

[0031] Please see Figure 7-9 The screening and collection mechanism 6 includes a screening section 29 and a collection section 30. The screening section 29 can extract the oxide scale from the vertically falling mixture of steel shot and oxide scale, thereby separating the oxide scale and steel shot, and simultaneously performing dust removal during the shot blasting process, improving the quality of the working cycle. The collection section 30 can collect and store the oxide scale and steel shot separately. The steel shot can be continuously output to the shot blaster through the steel shot circulation system. Waste residue such as oxide scale is centrally collected and can be removed and disposed of by workers in one go, reducing the frequency of cleaning and the labor intensity of workers. The steel shot circulation system mentioned above is existing technology and will not be described in detail here.

[0032] Please see Figure 7-9The screening unit 29 includes a suction hood 31 fixedly installed on the side of the shot blasting chamber 1, and the suction hood 31 communicates with the interior of the shot blasting chamber 1. A blower 32 is fixedly installed on the top surface of the suction hood 31, and the input end of the blower 32 is connected to the end of the suction hood 31 away from the shot blasting chamber 1 through a pipe. The blower 32 mentioned above is prior art and will not be described in detail here.

[0033] During shot blasting, high-speed moving steel shot continuously strikes the oxide scale on the volute shell workpiece, breaking it off and making the surface smoother, thus enhancing its corrosion resistance and mechanical strength. Some of the oxide scale that falls off is too fine and will diffuse into the shot blasting chamber 1, while some relatively large oxide scale will mix with the steel shot. Since the steel shot needs to be continuously impacted, its strength and density must be high. Oxide scale is a chemical reaction between the metal surface of the volute shell workpiece and moisture and oxygen in the environment. Oxide scale is not only thin but also has a low density. Compared with steel shot, the weight of oxide scale is much less than that of steel shot. Therefore, by providing a set suction force through the exhaust fan 32, the oxide scale can be extracted separately from the vertically falling mixture of steel shot and oxide scale, achieving separation of oxide scale from steel shot, and simultaneously extracting the oxide scale diffused in the shot blasting chamber 1 to achieve a dust removal effect.

[0034] Please see Figure 7-9 To further enhance the effectiveness of oxide scale removal, a V-shaped guide plate 33 is installed inside the shot blasting chamber 1, located below the filter platform 3. The V-shaped guide plate 33 guides the steel shot or oxide scale falling from the filter platform 3 to both sides of the suction hood 31, preventing the falling oxide scale from being too far from the suction hood 31 and thus avoiding a reduction in the oxide scale separation effect. The V-shaped guide plate 33 is positioned above the opening of the suction hood 31, ensuring that the oxide scale and steel shot falling obliquely along the V-shaped guide plate 33 first contact the inside of the shot blasting chamber 1, and then fall vertically before passing the suction hood 31, preventing the oxide scale and steel shot from falling directly into the suction hood 31.

[0035] Please see Figure 7-9 To prevent scale and steel shot from accumulating on the V-shaped guide plate 33, a rectangular plate 34 is fixed to the inner wall of the shot blasting chamber 1 below the V-shaped guide plate 33. A cylinder 35 is fixedly installed on the top surface of the rectangular plate 34, and a round rod 36 is slidably installed inside the cylinder 35. A spring 37 is fixedly installed between the bottom surface of the round rod 36 and the cylinder 35. The top surface of the round rod 36 is fixedly connected to the bottom surface of the V-shaped guide plate 33. The V-shaped guide plate 33 slides vertically on the inner wall of the shot blasting chamber 1. During the vertical shaking of the V-shaped guide plate 33, both ends of it are always above the suction hood 31. Through the cooperation of the round rod 36, the spring 37, the cylinder 35, the rectangular plate 34 and the V-shaped guide plate 33, the V-shaped guide plate 33 can shake vertically, thereby preventing the accumulation of steel shot and scale.

[0036] Please see Figure 7-9 To further enhance the screening effect of oxide scale, electromagnet plates 38 are symmetrically fixed inside the shot blasting chamber 1. A collection frame 39 is set below the electromagnet plates 38. The vertical section of the collection frame 39 is located outside the electromagnet plates 38 and has a set distance between them. The oxide scale of the vortex shell workpiece contains iron oxide, which can be attracted by the magnet. Although steel shot can also be attracted by the magnet, the mass of oxide scale is much smaller than that of steel shot. Therefore, by controlling the magnetic force of the electromagnet plates 38, only oxide scale can be attracted without steel shot, thus enhancing the screening effect of oxide scale and steel shot. Furthermore, by controlling the magnetic force of the electromagnet plates 38, larger defective steel shot can also be removed at the same time, avoiding the reuse of larger defective steel shot and preventing larger defective steel shot from affecting the shot blasting effect. A closable sliding door 40 is set on the front side of the shot blasting chamber 1. The position of the sliding door 40 corresponds to the position of the collection frame 39, so that the staff can clean the larger defective steel shot and oxide scale in the collection frame 39.

[0037] After shot blasting is completed, the power supply to the electromagnet plate 38 can be stopped, causing the electromagnet plate 38 to lose its magnetic force. This will cause the oxide scale or large defective steel shot on the electromagnet plate 38 to fall into the collection frame 39. When shot blasting is performed again, the power supply can be turned on again to restore its magnetism.

[0038] Please see Figure 7-9 The collection unit 30 includes a filter plate 41 inclinedly disposed inside the suction hood 31. Only airflow can pass through the filter plate 41. The filter plate 41 is inclined downward. A slot 42 is opened on the bottom surface of the suction hood 31. A conduit 43 is fixedly disposed below the slot 42. A cylinder 44 is detachably disposed on the conduit 43. A collection bag is fixedly disposed inside the cylinder 44. The collection unit 30 also includes inclined plates 45 symmetrically and inclinedly disposed inside the shot blasting box 1. The inclined plates 45 are located below the opening of the suction hood 31. The bottom ends of the two inclined plates 45 are connected to the input port of the steel shot circulation system.

[0039] Please see Figure 7-9 To prevent accumulation on the filter platform 3, a connecting pipe 46 is installed at the output end of the exhaust fan 32. One end of the connecting pipe 46 is always closed, and the other end is equipped with a valve 47 to control its opening and closing. Several fine nozzles 48 are also installed on the connecting pipe 46. The fine nozzles 48 extend into the shot blasting chamber 1 and are positioned to match the top surface of the filter platform 3. Through the connection pipe 46, valve 47, and fine nozzles 48, when the valve 47 closes the other end of the connecting pipe 46, the gas discharged by the exhaust fan 32 will inevitably be discharged through the fine nozzles 48. Since the diameter of the fine nozzles 48 is smaller than that of the connecting pipe 46, the gas passing through the fine nozzles 48 will be accelerated, further giving the flowing gas a stronger impact force, thereby blowing off the steel shot or oxide scale accumulated on the filter platform 3.

[0040] When this scheme is running, firstly, the telescopic cylinder 11 is activated to retract, and the telescopic cylinder pulls the slide plate 9 upward through the limit block 12, thereby opening the passage 7. Then, the operator stabilizes the volute shell workpiece to be shot-blasted onto the clamping assembly 4, and then the telescopic cylinder 11 is activated to extend, causing the slide plate 9 to close the passage 7 again. Then, the telescopic cylinder 16 is activated, causing the telescopic cylinder 16, along with the bent pipe 17 and the shot blasting pipe 15, to gradually move towards the vertical opening of the volute shell workpiece. When the bent pipe 17 extends into the volute shell... After the vertical opening of the shell workpiece is closed, the shot blasting is stopped, and then the shot blasting machine is started. The shot blasting machine sprays high-speed shot through shot blasting tube 15 and shot blasting tube 24. Then the motor 20 is started. The motor 20 drives the gear ring 21 to rotate through the gear 22. The rotation of the gear ring 21 drives the bent tube 17 to rotate, thereby shot blasting the inner cavity of the vertical opening of the volute workpiece. At the same time, the telescopic cylinder 3 26 is started. The telescopic cylinder 3 26 gradually extends the shot blasting tube 24 into the inner cavity of the horizontal opening of the volute workpiece.

[0041] During shot blasting, the exhaust fans 32 on both sides are activated. The exhaust fans 32 gradually extract the air from the shot blasting chamber 1 and remove the waste residue that has been dispersed in the air after shot blasting. During shot blasting, the shot and the detached oxide scale fall onto the filter platform 3 and then onto the V-shaped guide plate 33 through the holes on it. Then, they slide down to both sides along the V-shaped guide plate 33. The sliding steel shot or oxide scale first contacts or collides with the inner wall, causing them to continue falling vertically. During the vertical fall, they pass through the suction hood 31. Since the weight of the oxide scale is much smaller than that of the steel shot, the lighter oxide scale is sucked away by the suction hood 31, while the steel shot is guided into the steel shot circulation system by the inclined plate 45.

[0042] When the oxide scale enters the suction hood 31, it is blocked by the inclined filter plate 41, thus accumulating on the filter plate 41 or being guided into the collection bag below.

[0043] During the shot blasting process, a current of a set magnitude can be applied to the electromagnet plate 38, giving it a magnetic force of a set magnitude. As the oxide scale and steel shot fall, the oxide scale, being relatively light, is easily attracted and removed. Furthermore, the missing portions of the steel shot, resulting in a reduced mass, are also attracted by the electromagnet plate 38. This process not only removes the oxide scale but also removes the missing steel shot, ensuring that the recycled steel shot is intact and guaranteeing the quality of the shot blasting.

[0044] To prevent buildup on the filter platform 3, the connecting pipe 46 can be closed by valve 47. The airflow discharged by the exhaust fan 32 can only flow out from the fine nozzle 48. Since the inner diameter of the fine nozzle 48 is smaller than that of the connecting pipe 46, the airflow is accelerated, thereby increasing the outflow velocity and blowing off the steel shot or oxide scale accumulated on the filter platform 3.

[0045] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as a limitation on the present invention.

[0046] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. An automatic shot blasting machine with a vortex chamber and vortex shell, characterized in that: The system includes a shot blasting chamber with an inclined surface at the front top. An automatic opening and closing assembly is installed on the inclined surface. A filter platform is installed inside the shot blasting chamber, and a clamping assembly for stabilizing the volute workpiece is installed on the top surface of the filter platform. A shot blasting assembly is installed above the clamping assembly, and a screening and collection mechanism is symmetrically arranged below the filter platform. The screening and collection mechanism can not only remove dust during the shot blasting process, but also classify and collect oxide scale and steel shot.

2. The automatic shot blasting machine with vortex chamber and vortex shell as described in claim 1, characterized in that: The opening and closing assembly includes an opening on the inclined surface of the shot blasting chamber. Limiting strips 1 are symmetrically arranged on both sides of the opening. Slide plates are slidably arranged on the two limiting strips 1. Limiting strip 2 is arranged between the two limiting strips 1. Telescopic cylinder 1 is arranged on the upper side of limiting strip 2. Telescopic cylinder 1 is parallel to the slide plate and the inclined surface of the shot blasting chamber. The moving end of telescopic cylinder 1 passes through and slides on the upper side of limiting strip 2. A limiting block is arranged on the top surface of the lower end of the slide plate. The moving end of telescopic cylinder 1 is fixedly connected to the side of the limiting block.

3. The automatic shot blasting machine with vortex chamber and vortex shell as described in claim 1, characterized in that: The shot blasting assembly includes a vertical section and a horizontal section. The vertical section is used to perform shot blasting on the inner cavity of the vertical opening of the volute workpiece, and the horizontal section is used to perform shot blasting on the inner cavity of the horizontal opening of the volute workpiece. The vertical section and the horizontal section respectively include shot blasting tube one and shot blasting tube two. One end of shot blasting tube one and shot blasting tube two both extend out of the shot blasting box and are connected to the output end of the shot blaster. The end of shot blasting tube one, which is located inside the shot blasting box, can not only be adjusted in height according to the height of the volute workpiece, but can also be rotated. Shot blasting tube two can move in the horizontal direction.

4. The automatic shot blasting machine with vortex chamber and vortex shell as described in claim 1, characterized in that: The screening and collection mechanism includes a screening section and a collection section. The screening section can extract the oxide scale from the vertically falling mixture of steel shot and oxide scale, thereby separating the oxide scale and steel shot, and simultaneously performing dust removal during the shot blasting process. The collection section can collect and store the oxide scale and steel shot separately.

5. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 4, characterized in that: The screening section includes a suction hood located on the side of the shot blasting chamber, and the suction hood is connected to the interior of the shot blasting chamber. An exhaust fan is installed on the top surface of the suction hood, and the input end of the exhaust fan is connected to the end of the suction hood away from the shot blasting chamber through a pipe.

6. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 5, characterized in that: The shot blasting chamber is equipped with a V-shaped guide plate located below the filter platform and above the suction hood opening.

7. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 6, characterized in that: Below the V-shaped guide plate is a rectangular plate on the inner wall of the shot blasting chamber. A cylinder is set on the top surface of the rectangular plate, and a round rod is slidably installed inside the cylinder. A spring is installed between the bottom surface of the round rod and the cylinder. The top of the round rod is fixedly connected to the bottom surface of the V-shaped guide plate. The V-shaped guide plate slides vertically on the inner wall of the shot blasting chamber. During the vertical swaying of the V-shaped guide plate, its two ends are always above the suction hood.

8. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 7, characterized in that: The shot blasting chamber is symmetrically equipped with electromagnet plates, and a collection frame is set below the electromagnet plates. The vertical section of the collection frame is located outside the electromagnet plates and has a set distance between them. The front of the shot blasting chamber is equipped with an openable and closable door, and the position of the door corresponds to the position of the collection frame.

9. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 8, characterized in that: The collection section includes a filter plate inclinedly installed inside the suction hood. Only airflow can pass through the filter plate, which is inclined downwards. A slot is opened on the bottom surface of the suction hood, and a duct is installed below the slot. A cylinder is detachably installed on the duct, and a collection bag is installed inside the cylinder. The collection section also includes inclined plates symmetrically and inclinedly installed inside the shot blasting chamber. The inclined plates are located below the opening of the suction hood, and the bottom ends of the two inclined plates are connected to the inlet of the steel shot circulation system.

10. The automatic shot blasting machine with vortex chamber and vortex shell according to claim 9, characterized in that: The output end of the exhaust fan is connected to a connecting pipe. One end of the connecting pipe is always closed, and the other end is equipped with a valve to control its opening and closing. Several fine nozzles are also installed on the connecting pipe. The fine nozzles extend into the shot blasting chamber and are positioned to match the top surface of the filter platform.

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