A plaster model processing system and process for casting aluminum alloy impellers

Abstract

This invention discloses a plaster model processing system and process for casting aluminum alloy impellers, comprising a drying chamber and a mounting frame, with the mounting frame fixedly disposed at the bottom of the drying chamber. This invention relates to the field of plaster model processing technology. The system and process, by incorporating a driving mechanism, an alternating support mechanism, a deep drying mechanism, and a filtration and impurity removal mechanism between the drying chamber and the mounting frame, enable the device to simultaneously and collaboratively dry the plaster parts. This allows the air guide shroud to alternately rotate the support at the bottom of the plaster part while simultaneously blowing hot air for drying, ensuring that the bottom is also dried accordingly. This avoids excessively different drying rates across different drying surfaces of the plaster part, which would hinder further improvement in drying efficiency.

Description

Technical Field

[0001] This invention relates to the field of plaster model processing technology, specifically to a plaster model processing system and process for casting aluminum alloy impellers. Background Technology

[0002] Plaster molds are traditional molds used in industrial production for a long time. As the basic material in casting production, which is mainly based on slip casting, the molding mold has become an important factor restricting the casting shape, regularity, labor productivity and production cost. The molding molds used in the sanitary ceramics industry are mostly plaster models. Although some manufacturers at home and abroad have tried to use models made of other materials to replace plaster models, they are mostly used only for certain special processes and products due to complex processes, low water absorption and high prices.

[0003] After the aluminum alloy impeller plaster model is made, it contains moisture and therefore needs to be dried. In the prior art, the plaster model is not heated evenly during drying, which reduces the drying speed and affects the efficiency of mass production. Therefore, to avoid such problems, Chinese Patent CN116294494A discloses a drying system and drying process for plaster models used in aluminum alloy impeller casting, specifically related to the field of plaster model production. The system includes a main shell mechanism, which includes a drying chamber. A transmission mechanism is fixedly installed at the bottom of the drying chamber. The transmission mechanism includes a cylindrical base, and a three-phase servo motor is fixedly installed at the bottom of the cylindrical base. The output end of the three-phase servo motor is rotatably connected to a first fan blade. A nickel-chromium heating wire is fixedly installed at the bottom of the drying chamber. This invention incorporates an airfoil-shaped windward plate. Hot air enters the movable positioning rod from the bowl-shaped ventilation disc and exits through the air knife-shaped outlet to dry the impeller plaster model. When the hot air comes into contact with the airfoil-shaped windward plate, the airfoil-shaped windward plate deflects, causing the horizontal round rod to rotate on the surface of the positioning load-bearing tray. This, in turn, causes the movable turntable to rotate, making the impeller plaster model rotate. This ensures more comprehensive heating and accelerates the drying process, thus improving work efficiency.

[0004] While the above methods improve drying speed and work efficiency, they inevitably have shortcomings in actual use. For example, the device lacks an alternating support mechanism, which causes the contact surface between the gypsum and the support to remain in place for a long time, resulting in excessively different drying rates on different drying surfaces of the gypsum part. This prevents further improvement in drying efficiency. To avoid such problems, a gypsum model processing system and its process for casting aluminum alloy impellers are proposed to solve the existing problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a plaster model processing system and process for casting aluminum alloy impellers. It solves the problem that the lack of an alternating support mechanism in the device leads to excessively different drying rates on different drying surfaces of the plaster model due to the plaster not being able to separate and dry for a long time, thus preventing further improvement in drying efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plaster model processing system for casting aluminum alloy impellers, comprising a drying chamber and a mounting frame. The mounting frame is fixedly disposed at the bottom of the drying chamber. A guide hood is fixedly connected to the bottom of the inner cavity of the drying chamber, and the bottom of the guide hood penetrates the drying chamber and extends into the interior of the mounting frame. An annular cover is fixedly connected to the bottom of the guide hood and inside the mounting frame. A rotating rod is rotatably connected to the interior of the annular cover via a bearing. Several rotating fan blades are fixedly connected to the surface of the rotating rod, and the several rotating fan blades are arranged in a circumferential equidistant array. A heating wire is fixedly connected between the front and rear sides of the inner cavity of the guide hood and at the top of the rotating fan blades. Several air outlet slots are provided on both sides of the guide hood, and the several air outlet slots on the same side are arranged in an equidistant array. A driving mechanism is provided between the mounting frame and the rotating rod. An alternating receiving mechanism is provided between the rotating rod and the drying chamber. A deep drying mechanism is provided between the alternating receiving mechanism and the guide hood. A filtration and impurity removal mechanism is provided between the driving mechanism and the mounting frame.

[0007] Preferably, the alternating receiving mechanism includes a first reciprocating screw, of which two are provided, and both first reciprocating screws are rotatably connected to both sides of the bottom of the drying chamber via bearings. The surface of the first reciprocating screw is threaded with a first threaded sleeve, and one side of the first threaded sleeve is fixedly connected to several first receiving frames via brackets. The bottom of the drying chamber and both sides of the air guide hood are fixedly connected with mounting columns, and several second receiving frames that are used in conjunction with the first receiving frames are fixedly connected to the opposite sides of the two mounting columns. One end of the first reciprocating screw passes through the drying chamber and extends into the interior of the mounting frame. The surface of the first reciprocating screw and the interior of the mounting frame are fixedly connected with a first pulley, and the upper and lower parts of the rotating rod are fixedly connected with second pulleys. A drive belt is connected between the first pulley and the second pulley at the same height.

[0008] Preferably, the deep drying mechanism includes a U-shaped ventilation pipe, which is rotatably connected to the top of the air guide hood via a sealed bearing. One end of the U-shaped ventilation pipe is connected to a rectangular air duct, and a plurality of drying air vents are provided on one side of the rectangular air duct, which are arranged in an equidistant array. A rotating roller is fixedly connected to the top of the first reciprocating screw on the left side, and a first sprocket is fixedly connected to the surface of the rotating roller. A second sprocket is fixedly connected to the surface of the U-shaped ventilation pipe, and a drive chain is connected between the second sprocket and the first sprocket.

[0009] Preferably, the filtration and impurity removal mechanism includes ventilation slots, which are formed on two sides of the mounting frame. Filter screens for use with the ventilation slots are fixedly connected to both sides of the mounting frame by bolts. A second reciprocating screw is rotatably connected to the bottom of the mounting frame via bearings. A second threaded sleeve is threaded onto the surface of the second reciprocating screw. Cleaning scrapers for use with the filter screens are fixedly connected to both sides of the second threaded sleeve. A meshing mechanism is provided between the second reciprocating screw and the drive mechanism.

[0010] Preferably, the driving mechanism includes a drive motor, which is fixedly mounted on the front side of the mounting frame via a bracket. The output shaft of the drive motor is fixedly connected to a rotating shaft via a coupling. One end of the rotating shaft passes through and extends into the interior of the mounting frame. A first bevel gear is fixedly connected to the end of the rotating shaft extending into the mounting frame. A second bevel gear that meshes with the first bevel gear is fixedly connected to the bottom end of the rotating rod.

[0011] Preferably, the meshing mechanism includes a first gear, which is fixedly disposed on the surface of the second reciprocating lead screw, and a second gear that meshes with the first gear is fixedly connected to the surface of the rotating shaft.

[0012] Preferably, a sliding plate is fixedly connected to the bottom of the mounting frame, and a sliding block is slidably connected inside the sliding plate, with the bottom of the sliding block fixedly connected to the top of the second threaded sleeve.

[0013] Preferably, both sides of the bottom of the drying chamber and the front side of the first reciprocating screw are fixedly connected to limit sliding columns, and the surface of the limit sliding column is slidably provided with a limit sliding sleeve, and the rear side of the limit sliding sleeve is fixedly connected to the front side of the adjacent first threaded sleeve.

[0014] This invention also discloses a plaster model processing technology for casting aluminum alloy impellers, specifically including the following steps:

[0015] S1. In use, firstly, place the plaster pieces in batches on the display stand formed by the adjacent first and second receiving frames. Then close the box door and start the drive motor. The drive motor starts its output shaft to drive the rotating shaft to rotate. The rotating shaft drives the first bevel gear to rotate. The first bevel gear meshes with the second bevel gear and synchronously drives the rotating rod to rotate through their meshing. The rotating rod drives the rotating fan blades to rotate. The rotating fan blades will bring the outside air into the air guide hood. When the air enters the air guide hood, it will first be heated by the heating wire. The hot air will be blown out through the air outlet and dry the plaster pieces jointly supported by the first and second receiving frames.

[0016] S2. As the rotating rod rotates, it also drives the second pulley to rotate. The rotation of the second pulley will form a transmission engagement with the adjacent first pulley and the drive belt. The transmission engagement of the second pulley, the first pulley, and the drive belt will synchronously drive the first reciprocating screw to rotate. The first threaded sleeve on the surface of the first reciprocating screw will move up and down reciprocally through the limiting engagement of the limiting slide column and the limiting slide sleeve. The movement of the first threaded sleeve will drive several first receiving frames to move up and down. The upward movement of the first receiving frames will cause the plaster piece to gradually separate from the second receiving frame, exposing the contact surface between the plaster piece and the second receiving frame. The exposed surface will be dried by hot air. When the first receiving frame descends, it will place the plaster piece on the top of the second receiving frame. The descent of the first receiving frame will cause the first receiving frame to separate from the plaster piece. After the first receiving frame and the plaster piece are separated from the bearing contact, the plaster piece will expose the contact surface with the first receiving frame, and at the same time, the contact surface with the first receiving frame will be dried by hot air.

[0017] S3. When the first reciprocating screw on the left rotates, it also drives the rotating roller to rotate. The rotating roller drives the first sprocket to rotate. The rotation of the first sprocket will form a transmission engagement with the second sprocket and the drive chain. When the first sprocket, the second sprocket and the drive chain are in transmission engagement, they will synchronously drive the U-shaped ventilation pipe to rotate. The rotation of the U-shaped ventilation pipe will drive the rectangular air duct to rotate in a circle. When the rectangular air duct rotates in a circle, the hot air poured into it through the air guide and the U-shaped ventilation pipe will perform a circular air drying on several plaster pieces.

[0018] S4. As the rotating shaft rotates, it also drives the second gear to rotate. The rotation of the second gear will mesh with the first gear. The meshing rotation of the first gear will drive the second reciprocating screw to rotate. The rotation of the second reciprocating screw will cause the second threaded sleeve on its surface to move back and forth through the limiting cooperation of the sliding plate and the sliding block. The second threaded sleeve will drive the cleaning scraper to move back and forth. The movement of the cleaning scraper will perform a cleaning process on the filter surface of the filter screen.

[0019] Preferably, in S2, the diameters of the first pulley and the second pulley are different, and the diameter of the first pulley is twice that of the second pulley.

[0020] This invention provides a plaster model processing system for casting aluminum alloy impellers. Compared with existing technologies, it has the following advantages:

[0021] (1) The gypsum model processing system for aluminum alloy impeller casting, by setting a drive mechanism, an alternating receiving mechanism, a deep drying mechanism and a filtration and impurity removal mechanism between the drying box and the mounting frame, enables the device to simultaneously coordinate the drive mechanism, the alternating receiving mechanism, the deep drying mechanism and the filtration and impurity removal mechanism during the drying process of gypsum parts. This allows the air guide hood to alternately rotate the support at the bottom of the gypsum parts while blowing hot air to dry them, so that the bottom of the parts can also be dried accordingly. This avoids the problem that the drying efficiency cannot be further improved due to the large difference in drying rate of each drying surface of the gypsum parts. It also allows for the simultaneous circumferential hot air drying of many placed gypsum parts, further improving the drying effect. At the same time, it filters and removes impurities from the air inside the air guide hood to avoid the problem that the air inside the air guide hood is mixed with too much dust and the filter screen is blocked, which affects the smooth flow of air.

[0022] (2) The plaster model processing system for casting aluminum alloy impellers, by setting a limiting slide column and a limiting slide sleeve inside the drying box to be used in conjunction with the first threaded sleeve, can improve the stability of the first receiving frame movement process by limiting the cooperation of the limiting slide column and the limiting slide sleeve during the movement of the first threaded sleeve carrying a number of first receiving frames.

[0023] (3) The plaster model processing system for casting aluminum alloy impellers, by setting the first and second support frames as interlocking multi-groove support plates, enables the first and second support frames to easily move the plaster parts up and down to complete the interlocking support and handover, so that hot air can locally and interlock the bottom of the plaster parts to dry.

[0024] (4) The plaster model processing system for casting aluminum alloy impellers, by setting a sliding plate and a sliding block at the bottom of the mounting frame to be used in conjunction with the second threaded sleeve, allows the second threaded sleeve to be limited in its direction of movement through the limiting cooperation of the sliding plate and the sliding block. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the drying oven structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the alternating bearing mechanism structure of the present invention;

[0028] Figure 4 This is a cross-sectional view of the mounting frame structure of the present invention;

[0029] Figure 5 This is a cross-sectional view of the air guide shroud structure of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified view of a section at point B in the middle;

[0031] Figure 7 This is a top view of the internal structure of the mounting frame of the present invention;

[0032] Figure 8 For the present invention Figure 2 A magnified view of a section at point A in the middle;

[0033] Figure 9 This is a bottom view of the mounting frame structure of the present invention;

[0034] Figure 10 For the present invention Figure 9 A magnified view of a section at point C.

[0035] In the diagram: 1. Drying oven; 2. Mounting frame; 3. Air guide hood; 4. Annular hood; 5. Rotating rod; 6. Rotating fan blade; 7. Heating wire; 8. Air outlet; 9. Drive mechanism; 901. Drive motor; 902. Rotating shaft; 903. First bevel gear; 904. Second bevel gear; 10. Alternating receiving mechanism; 101. First reciprocating screw; 102. First threaded sleeve; 103. First receiving frame; 104. Mounting column; 105. Second receiving frame; 106. First pulley; 107. Second pulley; 108. Drive belt; 11. 111. Deep drying mechanism; 112. U-shaped ventilation duct; 113. Rectangular air duct; 114. Drying air outlet; 115. Rotating roller; 116. First sprocket; 117. Second sprocket; 118. Drive chain; 12. Filtration and impurity removal mechanism; 121. Ventilation slot; 122. Filter screen; 123. Second reciprocating screw; 124. Second threaded sleeve; 125. Dust removal scraper; 126. Meshing mechanism; 1261. First gear; 1262. Second gear; 13. Sliding groove plate; 14. Sliding block; 15. Limiting sliding column; 16. Limiting sliding sleeve. Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] Please see Figure 1-10This invention provides a technical solution: a plaster model processing system for casting aluminum alloy impellers, including a drying box 1 and a mounting frame 2. The mounting frame 2 is fixedly set at the bottom of the drying box 1. A guide hood 3 is fixedly connected to the bottom of the inner cavity of the drying box 1, and the bottom of the guide hood 3 penetrates the drying box 1 and extends into the interior of the mounting frame 2. An annular cover 4 is fixedly connected to the bottom of the guide hood 3 and located inside the mounting frame 2. A rotating rod 5 is rotatably connected to the interior of the annular cover 4 through a bearing. Several rotating fan blades 6 are fixedly connected to the surface of the rotating rod 5, and the several rotating fan blades 6 are arranged in a circumferential equidistant array. An electric heating wire 7 is fixedly connected between the front and rear sides of the inner cavity of the guide hood 3 and located at the top of the rotating fan blades 6. Several air outlet slots 8 are opened on both sides of the guide hood 3, and the several air outlet slots 8 on the same side are arranged in an equidistant array.

[0038] As a preferred embodiment: To facilitate air drying, a drive mechanism 9 is provided between the mounting frame 2 and the rotating rod 5. The drive mechanism 9 includes a drive motor 901, which is fixedly mounted on the front side of the mounting frame 2 by a bracket. The output shaft of the drive motor 901 is fixedly connected to a rotating shaft 902 by a coupling. One end of the rotating shaft 902 passes through and extends into the interior of the mounting frame 2. A first bevel gear 903 is fixedly connected to the end of the rotating shaft 902 that extends into the interior of the mounting frame 2. A second bevel gear 904 that meshes with the first bevel gear 903 is fixedly connected to the bottom end of the rotating rod 5.

[0039] As a preferred embodiment: To facilitate alternating drying of the support surface of the gypsum parts, an alternating support mechanism 10 is provided between the rotating rod 5 and the drying chamber 1. The alternating support mechanism 10 includes two first reciprocating screws 101, and both first reciprocating screws 101 are rotatably connected to both sides of the bottom of the drying chamber 1 via bearings. The surface of the first reciprocating screw 101 is threadedly connected to a first threaded sleeve 102. One side of the first threaded sleeve 102 is fixedly connected to several first support brackets 103 via brackets. The bottom of the drying chamber 1 is located at the air guide shroud 3. Mounting columns 104 are fixedly connected to both sides. Several second receiving frames 105, which are used in conjunction with the first receiving frame 103, are fixedly connected to the opposite side of the two mounting columns 104. One end of the first reciprocating screw 101 passes through the drying box 1 and extends into the interior of the mounting frame 2. A first pulley 106 is fixedly connected to the surface of the first reciprocating screw 101 and inside the mounting frame 2. A second pulley 107 is fixedly connected to the upper and lower parts of the surface of the rotating rod 5. A drive belt 108 is connected between the first pulley 106 and the second pulley 107 at the same height.

[0040] As a detailed explanation: Limiting slides 15 are fixedly connected to both sides of the bottom of the inner cavity of the drying oven 1 and to the front side of the first reciprocating screw 101. Limiting sleeves 16 are slidably provided on the surface of the limiting slides 15, and the rear side of the limiting sleeves 16 is fixedly connected to the front side of the adjacent first threaded sleeve 102.

[0041] As a preferred embodiment: To further improve the drying effect, a deep drying mechanism 11 is provided between the alternating receiving mechanism 10 and the air guide hood 3. The deep drying mechanism 11 includes a U-shaped ventilation pipe 111. The U-shaped ventilation pipe 111 is rotatably connected to the top of the air guide hood 3 through a sealed bearing. One end of the U-shaped ventilation pipe 111 is connected to a rectangular air pipe 112. Several drying air outlets 113 are opened on one side of the rectangular air pipe 112, and the several drying air outlets 113 are arranged in an equidistant array. A rotating roller 114 is fixedly connected to the top of the first reciprocating screw 101 on the left side. A first sprocket 115 is fixedly connected to the surface of the rotating roller 114. A second sprocket 116 is fixedly connected to the surface of the U-shaped ventilation pipe 111. A drive chain 117 is connected between the second sprocket 116 and the first sprocket 115.

[0042] As a preferred embodiment: To facilitate dust removal and filtration by airflow, a filtration and impurity removal mechanism 12 is provided between the drive mechanism 9 and the mounting frame 2. The filtration and impurity removal mechanism 12 includes ventilation slots 121, which are formed on both sides of the mounting frame 2. Filter screens 122 that are used in conjunction with the ventilation slots 121 are fixedly connected to both sides of the mounting frame 2 by bolts. A second reciprocating screw 123 is rotatably connected to the bottom of the mounting frame 2 by bearings. A second threaded sleeve 124 is threadedly connected to the surface of the second reciprocating screw 123. Dust removal scrapers 125 that are used in conjunction with the filter screens 122 are fixedly connected to both sides of the second threaded sleeve 124. A meshing mechanism 126 is provided between the second reciprocating screw 123 and the drive mechanism 9. The meshing mechanism 126 includes a first gear 1261, which is fixedly disposed on the surface of the second reciprocating screw 123. A second gear 1262 that meshes with the first gear 1261 is fixedly connected to the surface of the rotating shaft 902.

[0043] As a detailed explanation: The bottom of the mounting frame 2 is fixedly connected to a sliding plate 13, and a sliding block 14 is slidably connected inside the sliding plate 13, and the bottom of the sliding block 14 is fixedly connected to the top of the second threaded sleeve 124.

[0044] This invention also discloses a plaster model processing technology for casting aluminum alloy impellers, specifically including the following steps:

[0045] S1. In use, firstly, place the plaster pieces in batches on the display stand formed by the adjacent first support frame 103 and second support frame 105. Then close the box door and start the drive motor 901. The drive motor 901 starts its output shaft to drive the rotating shaft 902 to rotate. The rotating shaft 902 drives the first bevel gear 903 to rotate. The first bevel gear 903 rotates and meshes with the second bevel gear 904. Through their meshing, it synchronously drives the rotating rod 5 to rotate. The rotating rod 5 rotates and drives the rotating fan blade 6 to rotate. The rotating fan blade 6 will bring the outside air into the air guide hood 3. When the air enters the air guide hood 3, it will first be heated by the electric heating wire 7. The hot air will be blown out through the air outlet 8 and dry the plaster pieces jointly supported by the first support frame 103 and the second support frame 105.

[0046] S2. As the rotating rod 5 rotates, it also drives the second pulley 107 to rotate. The rotation of the second pulley 107 forms a transmission engagement with the adjacent first pulley 106 and drive belt 108. The transmission engagement of the second pulley 107, the first pulley 106, and the drive belt 108 synchronously drives the first reciprocating screw 101 to rotate. The rotation of the first reciprocating screw 101 causes the first threaded sleeve 102 on its surface to move up and down reciprocally through the limiting engagement of the limiting slide post 15 and the limiting sleeve 16. The movement of the first threaded sleeve 102 drives several first receiving frames 103 to move up and down. The upward movement of the first receiving frames 103 causes the plaster piece to gradually detach from the second receiving frame 105. The plaster piece is exposed to the contact surface between the plaster piece and the second support frame 105, and the exposed surface is dried by hot air. When the first support frame 103 descends, it places the plaster piece on top of the second support frame 105. As the first support frame 103 descends, it causes the first support frame 103 to separate from the plaster piece. After the first support frame 103 and the plaster piece are separated from the bearing contact, the plaster piece will expose the contact surface with the first support frame 103, and at the same time, the contact surface with the first support frame 103 will be dried by hot air. The diameters of the first pulley 106 and the second pulley 107 are different, and the diameter of the first pulley 106 is twice that of the second pulley 107.

[0047] S3. When the first reciprocating screw 101 on the left side rotates, it also drives the rotating roller 114 to rotate. The rotation of the rotating roller 114 drives the first sprocket 115 to rotate. The rotation of the first sprocket 115 will form a transmission engagement with the second sprocket 116 and the drive chain 117. When the first sprocket 115, the second sprocket 116 and the drive chain 117 are in transmission engagement, they will synchronously drive the U-shaped ventilation pipe 111 to rotate. The rotation of the U-shaped ventilation pipe 111 will drive the rectangular air pipe 112 to rotate circumferentially. When the rectangular air pipe 112 rotates circumferentially, the hot air injected into it through the air guide hood 3 and the U-shaped ventilation pipe 111 will perform circumferential air drying on several plaster pieces.

[0048] S4. While rotating shaft 902 rotates, it also drives second gear 1262 to rotate. The rotation of second gear 1262 will mesh with first gear 1261. The meshing rotation of first gear 1261 will drive second reciprocating screw 123 to rotate. The rotation of second reciprocating screw 123 will cause second threaded sleeve 124 on its surface to move back and forth through the limiting cooperation of sliding plate 13 and sliding block 14. Second threaded sleeve 124 drives cleaning scraper 125 to move back and forth. The movement of cleaning scraper 125 will perform a cleaning process on the filter surface of filter screen 122.

[0049] Furthermore, all content not described in detail in this specification belongs to the prior art known to those skilled in the art. The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plaster model processing system for casting aluminum alloy impellers, comprising a drying chamber (1) and a mounting frame (2), wherein the mounting frame (2) is fixedly disposed at the bottom of the drying chamber (1), characterized in that: A guide hood (3) is fixedly connected to the bottom of the inner cavity of the drying chamber (1), and the bottom of the guide hood (3) penetrates through the drying chamber (1) and extends into the interior of the mounting frame (2). An annular cover (4) is fixedly connected to the bottom of the guide hood (3) and inside the mounting frame (2). A rotating rod (5) is rotatably connected to the interior of the annular cover (4) via a bearing. Several rotating fan blades (6) are fixedly connected to the surface of the rotating rod (5), and the several rotating fan blades (6) are arranged in a circumferential and equidistant array. The guide hood (3) is located between the front and rear sides of the inner cavity and between the rotating fan blades. (6) has a heating wire (7) fixedly connected to its top. Several air outlets (8) are opened on both sides of the air guide hood (3), and several air outlets (8) on the same side are arranged in an equidistant array. A driving mechanism (9) is provided between the mounting frame (2) and the rotating rod (5). An alternating receiving mechanism (10) is provided between the rotating rod (5) and the drying box (1). A deep drying mechanism (11) is provided between the alternating receiving mechanism (10) and the air guide hood (3). A filtration and impurity removal mechanism (12) is provided between the driving mechanism (9) and the mounting frame (2). The alternating receiving mechanism (10) includes a first reciprocating screw (101), two of which are provided, and both first reciprocating screws (101) are rotatably connected to both sides of the bottom of the drying chamber (1) via bearings. The surface of the first reciprocating screw (101) is threaded with a first threaded sleeve (102). One side of the first threaded sleeve (102) is fixedly connected to several first receiving brackets (103) via brackets. The bottom of the drying chamber (1) and both sides of the air guide hood (3) are fixedly connected with mounting columns (104). The two mounting columns (104) are... 04) Several second receiving frames (105) that are used in conjunction with the first receiving frame (103) are fixedly connected to the opposite side. One end of the first reciprocating screw (101) passes through the drying box (1) and extends into the interior of the mounting frame (2). A first pulley (106) is fixedly connected to the surface of the first reciprocating screw (101) and inside the mounting frame (2). A second pulley (107) is fixedly connected to the upper and lower parts of the surface of the rotating rod (5). A drive belt (108) is connected between the first pulley (106) and the second pulley (107) at the same height. The deep drying mechanism (11) includes a U-shaped ventilation pipe (111), which is rotatably connected to the top of the air guide hood (3) through a sealed bearing. One end of the U-shaped ventilation pipe (111) is connected to a rectangular air duct (112). Several drying air vents (113) are opened on one side of the rectangular air duct (112), and the several drying air vents (113) are arranged in an equidistant array. A rotating roller (114) is fixedly connected to the top of the first reciprocating screw (101) on the left side. A first sprocket (115) is fixedly connected to the surface of the rotating roller (114). A second sprocket (116) is fixedly connected to the surface of the U-shaped ventilation pipe (111). A drive chain (117) is connected between the second sprocket (116) and the first sprocket (115).

2. The plaster model processing system for casting aluminum alloy impellers according to claim 1, characterized in that: The filtration and impurity removal mechanism (12) includes ventilation slots (121), which are formed on two sides of the mounting frame (2). Both sides of the mounting frame (2) are fixedly connected with filter screens (122) that are used in conjunction with the ventilation slots (121). The bottom of the mounting frame (2) is rotatably connected to a second reciprocating screw (123) through a bearing. The surface of the second reciprocating screw (123) is threaded with a second threaded sleeve (124). Both sides of the second threaded sleeve (124) are fixedly connected with cleaning scrapers (125) that are used in conjunction with the filter screens (122). A meshing mechanism (126) is provided between the second reciprocating screw (123) and the drive mechanism (9).

3. The plaster model processing system for casting aluminum alloy impellers according to claim 2, characterized in that: The drive mechanism (9) includes a drive motor (901), which is fixedly mounted on the front side of the mounting frame (2) by a bracket. The output shaft of the drive motor (901) is fixedly connected to a rotating shaft (902) by a coupling. One end of the rotating shaft (902) passes through and extends into the interior of the mounting frame (2). The end of the rotating shaft (902) extending into the interior of the mounting frame (2) is fixedly connected to a first bevel gear (903). The bottom end of the rotating rod (5) is fixedly connected to a second bevel gear (904) that meshes with the first bevel gear (903).

4. The plaster model processing system for casting aluminum alloy impellers according to claim 3, characterized in that: The meshing mechanism (126) includes a first gear (1261), which is fixedly disposed on the surface of the second reciprocating lead screw (123), and a second gear (1262) that meshes with the first gear (1261) is fixedly connected to the surface of the rotating shaft (902).

5. The plaster model processing system for casting aluminum alloy impellers according to claim 4, characterized in that: The bottom of the mounting frame (2) is fixedly connected to a sliding plate (13), and a sliding block (14) is slidably connected inside the sliding plate (13), and the bottom of the sliding block (14) is fixedly connected to the top of the second threaded sleeve (124).

6. The plaster model processing system for casting aluminum alloy impellers according to claim 5, characterized in that: Limiting slides (15) are fixedly connected to both sides of the bottom of the drying chamber (1) and to the front side of the first reciprocating screw (101). Limiting sleeves (16) are slidably provided on the surface of the limiting slides (15), and the rear side of the limiting sleeves (16) is fixedly connected to the front side of the adjacent first threaded sleeve (102).

7. A process for preparing a plaster model for casting aluminum alloy impellers, characterized in that: The plaster model processing system for casting aluminum alloy impellers as described in claim 6 includes the following steps: S1. First, place the plaster pieces together in batches on the display stand formed by the adjacent first support frame (103) and second support frame (105). Then close the box door and start the drive motor (901). The drive motor (901) starts its output shaft to drive the rotating shaft (902) to rotate. The rotating shaft (902) drives the first bevel gear (903) to rotate. The first bevel gear (903) rotates and meshes with the second bevel gear (904). Through its meshing, it synchronously drives the rotating rod (5) to rotate. The rotating rod (5) rotates and drives the rotating fan blade (6) to rotate. The rotating fan blade (6) will bring the outside wind into the interior of the air guide hood (3). When the wind enters the interior of the air guide hood (3), it will first be heated by the electric heating wire (7). The hot air will enter the interior of the air guide hood (3) and be blown out through the air outlet (8) to dry the plaster pieces jointly supported by the first support frame (103) and the second support frame (105). S2. When the rotating rod (5) rotates, it also drives the second pulley (107) to rotate. The rotation of the second pulley (107) will form a transmission engagement with the adjacent first pulley (106) and the drive belt (108). The transmission engagement of the second pulley (107), the first pulley (106) and the drive belt (108) will synchronously drive the first reciprocating screw (101) to rotate. When the first reciprocating screw (101) rotates, the first threaded sleeve (102) on its surface will move up and down through the limiting engagement of the limiting slide (15) and the limiting slide (16). The movement of the first threaded sleeve (102) drives several first receiving frames (103) to move up and down. When the first support frame (103) moves upward, it will cause the plaster piece to gradually separate from the second support frame (105), and expose the contact surface between the plaster piece and the second support frame (105). The exposed surface is dried by hot air. When the first support frame (103) descends, it will place the plaster piece on top of the second support frame (105). The descent of the first support frame (103) will cause the first support frame (103) to separate from the plaster piece. After the first support frame (103) and the plaster piece are separated from the bearing contact, the plaster piece will expose the contact surface with the first support frame (103), and at the same time, the contact surface with the first support frame (103) will be dried by hot air. S3. When the first reciprocating screw (101) on the left rotates, the first reciprocating screw (101) on the left will also drive the rotating roller (114) to rotate. The rotating roller (114) will drive the first sprocket (115) to rotate. The rotation of the first sprocket (115) will form a transmission engagement with the second sprocket (116) and the drive chain (117). When the first sprocket (115), the second sprocket (116) and the drive chain (117) are in transmission engagement, they will synchronously drive the U-shaped ventilation pipe (111) to rotate. The rotation of the U-shaped ventilation pipe (111) will drive the rectangular air pipe (112) to rotate circumferentially. When the rectangular air pipe (112) rotates circumferentially, the hot air injected into it through the air guide hood (3) and the U-shaped ventilation pipe (111) will perform circumferential wind drying on several plaster parts. S4. When the rotating shaft (902) rotates, the rotating shaft (902) will also drive the second gear (1262) to rotate. The rotation of the second gear (1262) will form a meshing engagement with the first gear (1261). The meshing rotation of the first gear (1261) will drive the second reciprocating screw (123) to rotate. The second threaded sleeve (124) on the surface of the second reciprocating screw (123) will move back and forth through the limiting engagement of the sliding plate (13) and the sliding block (14). The second threaded sleeve (124) will drive the cleaning scraper (125) to move back and forth. The movement of the cleaning scraper (125) will perform a cleaning process on the filter surface of the filter screen (122).

8. The plaster model processing technology for casting aluminum alloy impellers according to claim 7, characterized in that: In S2, the diameters of the first pulley (106) and the second pulley (107) are different, and the diameter of the first pulley (106) is twice that of the second pulley (107).

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