A sand-blasting and polishing apparatus for castings

Abstract

The utility model discloses a castings sand blasting polishing equipment relates to sand blasting polishing technical field, including sand blasting machine, the bottom of sand blasting machine is set to the closed hopper of conical structure, the rear side of sand blasting machine is provided with sand conveying subassembly, the middle part rotation of sand blasting machine inboard is provided with the pivot, the middle part of pivot is provided with the sand filter plate of placing, one end of pivot is provided with the turnover subassembly for driving the turnover of sand filter plate of placing, the inboard of sand blasting machine is provided with the cleaning assembly for the cleaning of sand filter plate of placing, the utility model discloses through setting over component and cleaning assembly, has realized automatic cleaning, and over component can drive sand filter plate of placing overturn, and cleaning assembly can carry out back blow cleaning and drum cleaning to it, need not manual frequent intervention, has saved cleaning time and manpower cost greatly, makes equipment can be put into the next sand blasting operation faster, has improved production efficiency significantly.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting and polishing, and in particular to a sandblasting and polishing equipment for castings. Background Technology

[0002] Sandblasting and polishing is a crucial step in the production and processing of castings. It effectively removes burrs, scale, rust, and other impurities from the surface of the castings, giving them a certain level of cleanliness and roughness. This improves the surface quality of the castings, enhances coating adhesion, and provides a good foundation for subsequent processing.

[0003] While traditional sandblasting machines can meet basic sandblasting and polishing needs in terms of structure and working principle, they have gradually revealed many shortcomings in cleaning over long-term use. After sandblasting, a large amount of sand and impurities remain on the filter plates used to hold castings and filter the sand. Due to the lack of effective automatic cleaning devices, cleaning the filter plates often requires manual operation. Workers must first stop the equipment, open the sandblasting machine door, remove the filter plates, and then clean them with brushes and other tools. After cleaning, the filter plates are then reinstalled. This process is not only tedious and time-consuming, greatly reducing production efficiency, but also requires workers to be frequently exposed to sand and impurities, which can damage their health in the long run. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sandblasting and polishing device for castings, which solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sandblasting and polishing device for castings, comprising a sandblasting machine, wherein the bottom of the sandblasting machine is configured as a conical closed hopper, a sand conveying assembly is provided on the rear side of the sandblasting machine, a rotating shaft is rotatably arranged in the middle of the inner side of the sandblasting machine, a filter sand plate is arranged in the middle of the rotating shaft, a flipping assembly for driving the filter sand plate to rotate is provided at one end of the rotating shaft, and a cleaning assembly for cleaning the filter sand plate is provided on the inner side of the sandblasting machine.

[0006] As a further technical solution of this utility model, the sand conveying assembly includes a pump body, a sand conveying pipe and a sandblasting head. The pump body is installed at the bottom of the rear side of the closed hopper. The inlet of the pump body is connected to the closed hopper. The outlet of the pump body is connected to the sand conveying pipe. One end of the sand conveying pipe extends to the inside of the sandblasting machine and is connected to the sandblasting head.

[0007] As a further technical solution of this utility model, the flipping assembly includes a worm, a worm wheel and a handwheel. The worm is rotatably arranged at one end inside the sandblasting machine and located below the rotating shaft. The worm and the rotating shaft are arranged in a cross-shaped offset. The rotating shaft is equipped with a worm wheel that meshes with the worm. One end of the worm passes through the sandblasting machine and is connected to the handwheel.

[0008] As a further technical solution of this utility model, the cleaning component includes a motor, a threaded rod, a threaded sleeve, a limiting rod, a sliding sleeve, an air pump, an air supply pipe, and a backflush pipe. A motor is installed on one side of one end of the sandblasting machine. The output end of the motor extends into the sandblasting machine and is connected to the threaded rod. A threaded sleeve is threaded onto the threaded rod. A limiting rod is installed on the side of the sandblasting machine opposite to the threaded rod. A sliding sleeve is slidably mounted on the limiting rod. The backflush pipe is installed between the sliding sleeve and the threaded sleeve. Multiple sets of nozzles are linearly and equidistantly arranged at the bottom of the backflush pipe. The air pump is installed in the middle of one end of the sandblasting machine. The air inlet of the air pump is connected to the outside. The air outlet of the air pump extends into the inside of the sandblasting machine and is connected to the air supply pipe. One end of the air supply pipe is connected to the middle of the backflush pipe.

[0009] As a further technical solution of this utility model, the cleaning component also includes a horizontal shaft, a cleaning sleeve, a gear, and a toothed plate. The bottom ends of the sliding sleeve and the threaded sleeve are symmetrically provided with ear plates. The horizontal shaft is rotatably disposed between the two sets of ear plates. A cleaning sleeve that contacts the filter sand plate is provided on the outer side of the horizontal shaft. A gear is installed at one end of the horizontal shaft. A toothed plate located below the threaded rod is installed on the inner side of the sandblasting machine. The toothed plate is meshed with the gear.

[0010] As a further technical solution of this utility model, the top of the sandblasting machine is provided with an observation window, and a viewing glass is provided inside the observation window. Both sides of the front of the sandblasting machine are provided with operation ports, and an operating glove is sewn inside the sandblasting machine and located inside the operation port.

[0011] As a further technical solution of this utility model, the sandblasting machine has an operating door hinged to the end away from the motor, and the operating door is provided with a handle.

[0012] This utility model provides a sandblasting and polishing equipment for castings, which has the following advantages compared with the prior art:

[0013] 1. This design provides a sandblasting and polishing equipment for castings. By setting up a flipping component and a cleaning component, automatic cleaning is achieved. The flipping component can drive the filter sand plate to flip, and the cleaning component can perform back-blowing cleaning and roller cleaning. No frequent manual intervention is required, which greatly saves cleaning time and labor costs, and allows the equipment to be put into the next sandblasting operation more quickly, significantly improving production efficiency.

[0014] 2. This design provides a sandblasting and polishing device for castings. Multiple sets of nozzles are linearly and equidistantly arranged at the bottom of the back-blowing pipe. These nozzles, in conjunction with a motor, threaded rod, and threaded sleeve, can move linearly, enabling comprehensive back-blowing of the filter plate. Simultaneously, the cleaning sleeve contacts the filter plate, achieving rolling cleaning through the interaction of gears and toothed plates. This effectively removes stubborn impurities, ensuring cleaning results and improving sandblasting quality. Furthermore, the cleaned sand falls into the inner side of the enclosed hopper, reducing the dispersion of impurities inside the equipment and lowering maintenance difficulty. Attached Figure Description

[0015] Figure 1 A first-view structural schematic diagram of a sandblasting and polishing equipment for castings;

[0016] Figure 2 A second-view structural schematic diagram of a sandblasting and polishing equipment for castings;

[0017] Figure 3 A schematic diagram of a sandblasting and polishing device for removing glass windows from cast parts;

[0018] Figure 4 A first-view cross-sectional structural schematic diagram of a sandblasting and polishing equipment for castings;

[0019] Figure 5 This is a second-view cross-sectional structural diagram of a sandblasting and polishing equipment for castings;

[0020] Figure 6 for Figure 4 Enlarged schematic diagram of part A of the structure;

[0021] Figure 7 for Figure 4 An enlarged schematic diagram of the structure of part B in the middle section.

[0022] In the diagram: 1. Sandblasting machine; 11. Observation window; 12. Operating port; 13. Operating door; 2. Enclosed hopper; 3. Sand conveying assembly; 31. Pump body; 32. Sand conveying pipe; 33. Sandblasting head; 4. Rotating shaft; 5. Filter plate holder; 6. Tilting assembly; 61. Worm gear; 62. Worm wheel; 63. Handwheel; 7. Cleaning assembly; 71. Motor; 72. Threaded rod; 73. Threaded sleeve; 74. Limiting rod; 75. Sliding sleeve; 76. Air pump; 77. Air conveying pipe; 78. Backflush pipe; 79. Horizontal shaft; 710. Cleaning sleeve; 711. Gear; 712. Tooth plate; 8. Ear plate; Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-7 This utility model provides a technical solution for a sandblasting and polishing equipment for castings: a sandblasting and polishing equipment for castings includes a sandblasting machine 1, the bottom of the sandblasting machine 1 is configured as a conical closed hopper 2, a sand conveying assembly 3 is provided on the rear side of the sandblasting machine 1, a rotating shaft 4 is rotatably arranged in the middle of the inner side of the sandblasting machine 1, a filter sand plate 5 is arranged in the middle of the rotating shaft 4, a flipping assembly 6 is provided at one end of the rotating shaft 4 for driving the filter sand plate to rotate, and a cleaning assembly 7 is provided on the inner side of the sandblasting machine 1 for cleaning the filter sand plate 5.

[0025] like Figures 1-3 As shown, the sand conveying assembly 3 includes a pump body 31, a sand conveying pipe 32, and a sandblasting head 33. The pump body 31 is installed at the bottom of the rear side of the closed hopper 2. The inlet of the pump body 31 is connected to the closed hopper 2. The outlet of the pump body 31 is connected to the sand conveying pipe 32. One end of the sand conveying pipe 32 extends to the inside of the sandblasting machine 1 and is connected to the sandblasting head 33.

[0026] Specifically, the sandblasting inside the hopper is drawn into the pump body 31 through the feed inlet by the suction force generated by the pump body 31. Then, the pump body 31 pushes the sandblasting out from the discharge port and into the sand conveying pipe 32 connected to it. One end of the sand conveying pipe 32 extends to the inside of the sandblasting machine 1 and is connected to the sandblasting head 33. Under pressure, the sandblasting flows along the sand conveying pipe 32 and is finally ejected at high speed from the sandblasting head 33 to perform sandblasting and polishing treatment on the casting placed on the filter sand plate 5.

[0027] like Figure 4 and Figure 6 As shown, the flipping assembly 6 includes a worm 61, a worm wheel 62, and a handwheel 63. The worm 61 is rotatably mounted at one end inside the sandblasting machine 1, located below the rotating shaft 4. The worm 61 and the rotating shaft 4 are arranged in a cross-shaped offset. The rotating shaft 4 is equipped with a worm wheel 62 that meshes with the worm 61. One end of the worm 61 passes through the sandblasting machine 1 and is connected to the handwheel 63.

[0028] Specifically, when it is necessary to flip the filter sand plate 5, the operator turns the handwheel 63, which drives the worm 61 to rotate. Since the worm 61 is meshed with the worm wheel 62 installed on the rotating shaft 4, the rotation of the worm 61 will drive the worm wheel 62 to rotate, which in turn will cause the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 will cause the filter sand plate 5 to flip together, so that it flips half a circle, so that the subsequent cleaning component 7 can perform cleaning operations such as backflushing.

[0029] like Figure 4 , Figure 5 and Figure 7 As shown, the cleaning assembly 7 includes a motor 71, a threaded rod 72, a threaded sleeve 73, a limiting rod 74, a sliding sleeve 75, an air pump 76, an air supply pipe 77, and a backflush pipe 78. The motor 71 is installed on one side of one end of the sandblasting machine 1. The output end of the motor 71 extends into the sandblasting machine 1 and is connected to the threaded rod 72. The threaded sleeve 73 is threadedly connected to the threaded rod 72. The limiting rod 74 is installed inside the sandblasting machine 1 on the side opposite to the threaded rod 72. The sliding sleeve 75 is slidably arranged on the limiting rod 74. The backflush pipe 78 is installed between the sliding sleeve 75 and the threaded sleeve 73. Multiple sets of nozzles are linearly and equidistantly arranged at the bottom of the backflush pipe 78. The air pump 76 is installed in the middle of one end of the sandblasting machine 1. The air inlet of the air pump 76 is connected to the outside. The air outlet of the air pump 76 extends into the inside of the sandblasting machine 1 and is connected to the air supply pipe 77. One end of the air supply pipe 77 is connected to the middle of the backflush pipe 78.

[0030] It should be further noted that the gas pipe 77 is equipped with an adaptive corrugated folding mechanism.

[0031] Specifically, when cleaning is required, first adjust the filter sand plate 5 so that its bottom faces upwards, then start the motor 71. The motor 71 drives the threaded rod 72 to rotate. Since the threaded rod 72 is threadedly connected to the threaded sleeve 73, the threaded sleeve 73 will move linearly along the threaded rod 72 under the action of the thread. Therefore, the movement of the threaded sleeve 73 will drive the backflush pipe 78 to move together under the action of the sliding sleeve 75 and the limiting rod 74. In addition, start the air pump 76. The air pump 76 draws air from the outside and then delivers the air to the middle of the backflush pipe 78 through the air outlet and the air supply pipe 77, so that the air is sprayed out from the nozzle to perform a comprehensive backflush cleaning of the filter sand plate 5, blowing off the sand and impurities on the filter sand plate.

[0032] like Figure 7As shown, the cleaning assembly 7 also includes a horizontal shaft 79, a cleaning sleeve 710, a gear 711, and a toothed plate 712. The bottom ends of the sliding sleeve 75 and the threaded sleeve 73 are symmetrically provided with ear plates 8. The horizontal shaft 79 is rotatably disposed between the two sets of ear plates 8. The outer side of the horizontal shaft 79 is provided with a cleaning sleeve 710 that contacts the filter sand plate 5. A gear 711 is installed at one end of the horizontal shaft 79. A toothed plate 712 located below the threaded rod 72 is installed on the inner side of the sandblasting machine 1. The toothed plate 712 is meshed with the gear 711.

[0033] Specifically, when the backflush pipe 78 moves the sliding sleeve 75 and the threaded sleeve 73, the gear 711 moves together with the horizontal shaft 79. Since the gear 711 meshes with the toothed plate 712, the gear 711 will rotate during the movement, which in turn drives the horizontal shaft 79 to rotate. The rotation of the horizontal shaft 79 causes the cleaning sleeve 710 to rotate as well. During the rotation, the cleaning sleeve 710 contacts the filter sand plate 5 and performs rolling cleaning on the filter sand plate to further remove stubborn impurities on the filter sand plate.

[0034] like Figure 1 As shown, the top of the sandblasting machine 1 is provided with an observation window 11, and a viewing glass is provided inside the observation window 11. Both sides of the front of the sandblasting machine 1 are provided with operation ports 12, and operation gloves are sewn inside the sandblasting machine 1 and located inside the operation ports 12.

[0035] Specifically, during equipment operation, operators can observe the sandblasting of the castings inside the sandblasting machine 1 in real time through the viewing glass installed in the observation window 11 on the top of the sandblasting machine 1, and understand the sandblasting progress and effect, so as to adjust the equipment parameters according to the actual situation. When it is necessary to perform some simple operations on the castings inside the sandblasting machine 1, such as adjusting the position of the castings, without opening the equipment door, the operator can put his / her hands into the operating gloves and operate the castings inside the sandblasting machine 1 directly through the operating gloves, avoiding direct contact between the operator and the sand, thus improving the safety and convenience of operation.

[0036] like Figure 1 As shown, the sandblasting machine 1 has an operating door 13 hinged to the end away from the motor 71, and the operating door 13 is equipped with a handle.

[0037] Specifically, the interior of the sandblasting machine 1 can be maintained, inspected, and materials can be loaded and unloaded through the operating door 13.

[0038] The working principle of this utility model is as follows: First, the casting is placed on the sand filter plate 5 in the middle of the inner rotating shaft 4 of the sandblasting machine 1. The sand conveying assembly 3 is started, and the pump body 31 at the bottom of the rear side of the closed hopper 2 generates suction, causing the sand in the hopper to enter the pump body 31 through the feed port, and then be pushed out from the discharge port to the sand conveying pipe 32. Finally, it is sprayed out at high speed from the sandblasting head 33 to sandblast and polish the casting. During the sandblasting process, the operator can observe the internal sandblasting situation through the viewing glass in the observation window 11 on the top of the sandblasting machine 1, adjust the equipment parameters according to the actual situation, and can also put their hand into the operating glove inside the front operating port 12 to perform simple operations on the casting. After the sandblasting operation is completed, the handwheel 63 of the flipping assembly 6 is turned to drive the worm gear 61 to rotate, thereby making the sandblasting head 33 rotate. The worm gear 62, meshing with the worm 61, drives the rotating shaft 4 to rotate, causing the filter sand plate 5 to flip half a circumference so that its bottom faces upward. Then, the cleaning component 7 is activated, and the motor 71 drives the threaded rod 72 to rotate, causing the threaded sleeve 73 to drive the back-blowing pipe 78 to move linearly under the action of the sliding sleeve 75 and the limiting rod 74. At the same time, the air pump 76 draws air from the outside and delivers the gas to the back-blowing pipe 78 through the air supply pipe 77. The gas is sprayed out from multiple sets of nozzles at the bottom to perform a comprehensive back-blowing cleaning of the filter sand plate 5. During the movement of the back-blowing pipe 78, the gear 711 at one end of the horizontal shaft 79 rotates because it meshes with the inner toothed plate 712 of the sandblasting machine 1, driving the horizontal shaft 79 and the outer cleaning sleeve 710 to rotate, performing rolling cleaning on the filter sand plate 5 to further remove stubborn impurities.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A sandblasting and polishing equipment for castings, characterized in that, Includes a sandblasting machine (1), the bottom of which is configured as a closed hopper (2) with a conical structure, a sand conveying assembly (3) is provided on the rear side of the sandblasting machine (1), a rotating shaft (4) is rotatably provided in the middle of the inner side of the sandblasting machine (1), and a filter sand plate (5) is provided in the middle of the rotating shaft (4). One end of the rotating shaft (4) is provided with a flipping component (6) for driving the sand filter plate to rotate; The sandblasting machine (1) is provided with a cleaning component (7) for cleaning the filter plate (5) on its inner side.

2. The sandblasting and polishing equipment for castings according to claim 1, characterized in that, The sand conveying assembly (3) includes a pump body (31), a sand conveying pipe (32), and a sandblasting head (33). The pump body (31) is installed at the bottom of the rear side of the closed hopper (2). The inlet of the pump body (31) is connected to the closed hopper (2). The outlet of the pump body (31) is connected to the sand conveying pipe (32). One end of the sand conveying pipe (32) extends to the inside of the sandblasting machine (1) and is connected to the sandblasting head (33).

3. The sandblasting and polishing equipment for castings according to claim 1, characterized in that, The flipping assembly (6) includes a worm (61), a worm wheel (62), and a handwheel (63). The worm (61) is rotatably mounted at one end inside the sandblasting machine (1) and located below the rotating shaft (4). The worm (61) and the rotating shaft (4) are arranged in a cross-shaped offset. The rotating shaft (4) is equipped with a worm wheel (62) that meshes with the worm (61). One end of the worm (61) passes through the sandblasting machine (1) and is connected to the handwheel (63).

4. The sandblasting and polishing equipment for castings according to claim 1, characterized in that, The cleaning assembly (7) includes a motor (71), a threaded rod (72), a threaded sleeve (73), a limiting rod (74), a sliding sleeve (75), an air pump (76), an air supply pipe (77), and a backflush pipe (78). A motor (71) is installed on one side of one end of the sandblasting machine (1). The output end of the motor (71) extends into the sandblasting machine (1) and is connected to the threaded rod (72). A threaded sleeve (73) is threaded onto the threaded rod (72). A limiting rod (74) is installed inside the sandblasting machine (1) on the side opposite to the threaded rod (72). 74), a sliding sleeve (75) is slidably provided on the limiting rod (74), the backflush pipe (78) is installed between the sliding sleeve (75) and the threaded sleeve (73), the bottom of the backflush pipe (78) is provided with multiple sets of nozzles arranged linearly and equidistantly, the air pump (76) is installed in the middle of one end of the sandblasting machine (1), the air inlet of the air pump (76) is connected to the outside, the air outlet of the air pump (76) extends to the inside of the sandblasting machine (1) and is connected to an air supply pipe (77), one end of the air supply pipe (77) is connected to the middle of the backflush pipe (78).

5. The sandblasting and polishing equipment for castings according to claim 4, characterized in that, The cleaning assembly (7) also includes a horizontal shaft (79), a cleaning sleeve (710), a gear (711), and a toothed plate (712). The bottom ends of the sliding sleeve (75) and the threaded sleeve (73) are symmetrically provided with ear plates (8). The horizontal shaft (79) is rotatably disposed between the two sets of ear plates (8). The outer side of the horizontal shaft (79) is provided with a cleaning sleeve (710) that contacts the filter sand plate (5). A gear (711) is installed at one end of the horizontal shaft (79). A toothed plate (712) located below the threaded rod (72) is installed on the inner side of the sandblasting machine (1). The toothed plate (712) is meshed with the gear (711).

6. The sandblasting and polishing equipment for castings according to claim 1, characterized in that, The top of the sandblasting machine (1) is provided with an observation window (11), and a viewing glass is provided inside the observation window (11). Both sides of the front of the sandblasting machine (1) are provided with operation ports (12), and an operation glove is sewn inside the sandblasting machine (1) and located inside the operation port (12).

7. The sandblasting and polishing equipment for castings according to claim 1, characterized in that, The sandblasting machine (1) has an operating door (13) hinged to one end away from the motor (71), and the operating door (13) is provided with a handle.

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