A demoulding device for aluminum alloy profile casting

Abstract

The present invention relates to the field of precision casting, and specifically to a demoulding device for casting aluminum alloy profiles, comprising: a positioning frame, a positioning telescopic rod is installed in the middle of the lower part of the positioning frame, a vibration component that moves in a straight line is installed below the positioning telescopic rod, auxiliary frame plates are also slidably installed on both sides of the positioning frame, a flipping component is installed between the two auxiliary frame plates, the vibration component includes an upper circular plate installed below the positioning telescopic rod, a plurality of elastic arc plates are evenly distributed in a circle below the upper circular plate, an upper arc plate is installed at the other end of the plurality of elastic arc plates, and an arc plate is installed below the upper arc plate. Compared with the prior art, the present application changes the traditional knocking vibration method by providing vibration to the surroundings and upper and lower surfaces of the mold in a staggered rotation manner by providing a vibration component and a flipping component, thereby reducing damage to the molding material and the mold.

Description

Technical Field

[0001] The invention relates to the field of precision casting, and in particular to a demoulding device for casting aluminum alloy profiles. Background Art

[0002] With the continuous advancement of industrial technology, aluminum alloy profiles are widely used in many fields such as automobiles, aerospace, and construction due to their excellent properties such as light weight, high strength, and corrosion resistance. In the casting process of aluminum alloy profiles, aluminum alloy profile demoulding technology is one of the key links in the production process of aluminum alloy profiles, which directly affects the quality and production efficiency of aluminum alloy profiles. After the casting of the aluminum alloy profile is completed, it is necessary to wait for the mold to be fully cooled to reduce the adhesion between the aluminum alloy profile and the mold. Before demoulding, it is necessary to check the state of the mold to ensure that there is no residue or foreign matter attached to the mold surface, and check the structural integrity of the mold. In the mechanical demoulding operation, the forced demoulding uses mechanical forces such as ejector rods and pull rods to force the aluminum alloy profile to be ejected or pulled away from the mold, while the vibration demoulding is to reduce the friction between the aluminum alloy profile and the mold by vibrating the mold, so that the aluminum alloy profile can be easily removed from the mold. It is suitable for small, light or simple aluminum alloy profiles.

[0003] In the prior art, a Chinese patent document with publication number CN117718460B provides a demolding device for precision casting, including a mounting frame, an electric push rod and a liquid storage frame, etc.; two groups of electric push rods are fixedly connected to the mounting frame, and the number of electric push rods in each group is two. A liquid storage frame is fixedly connected between the telescopic rods of the two electric push rods in the same group, and there are two liquid storage frames in total, and the two liquid storage frames are symmetrically arranged. Several striking rods can fit the surface of the casting to be demolded, and then several striking rods will knock on various parts of the surface of the casting to be demolded, so as to knock off the sand shell on the surface of the casting to be demolded. In this way, the knocking can better knock on the corners of the casting to be demolded, and the demolding is more thorough while reducing the risk of damage to the casting to be demolded, so that the demolding is convenient and complete, and the upper and lower surfaces of the mold are directly impacted and knocked to generate vibration for demolding. However, continuous impact on profiles with complex structures is likely to cause damage to their structure, and there is also a certain amount of loss to reused molds. Therefore, the present application provides a demolding device for aluminum alloy profile casting to provide fitting dislocation vibration to the four sides and the upper surface of the mold, change the way of demolding by generating vibration through impact and knocking, prevent damage to the molding material and the mold during direct knocking and vibration, and improve the stability of the demolding process. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a demoulding device for aluminum alloy profile casting to solve the problem of damage to the mold and the profile during the demoulding operation caused by vibration generated by impact and knocking.

[0005] Based on the above purpose, the present invention provides a demoulding device for aluminum alloy profile casting, comprising a positioning frame, a positioning telescopic rod is installed at the middle part below the positioning frame, a vibration component that moves in a straight line is installed at the output end of the positioning telescopic rod, auxiliary frame plates are also slidably installed on both sides of the positioning frame, a flip component is installed between the two auxiliary frame plates, a ring plate is installed in the middle of the flip component, and a clamping component that moves in a circular motion is installed on the inner wall of the ring plate;

[0006] The vibration assembly includes an upper circular plate installed at the output end of the positioning telescopic rod, a plurality of elastic arc plates are evenly distributed on the circumference below the upper circular plate, an upper arc plate is installed at the other end of the plurality of elastic arc plates, an arc plate is installed below the upper arc plate, a plurality of tooth grooves are evenly distributed in an arc shape below the arc plate, inclined plates are installed on both sides of the positioning frame, and a spring telescopic rod is installed below the inclined plate;

[0007] The flip assembly includes an auxiliary frame plate installed under the spring telescopic rod, and a rotating shaft is movably installed under the opposite surfaces of two auxiliary frame plates, and a side gear is installed at the other end of one of the rotating shafts, and a support frame is fixedly installed on the side of the side gear away from the rotating shaft, and a positioning gear is rotatably installed in the middle of the support frame, and an auxiliary gear is meshed and connected to the side of the positioning gear. A shift plate is movably connected between the teeth of the auxiliary gear, and a ratchet is installed at the other end of the shift plate, and several of the ratchet wheels are installed with ring plates, and connecting rods are installed between the outer rings of adjacent ratchet wheels.

[0008] Preferably, a contact plate is installed at the middle of the opposite surfaces of several of the elastic arc plates, an auxiliary elastic plate is installed at one end of the contact plate away from the elastic arc plate, and a conical block is installed on the lower surface of the upper circular plate.

[0009] Preferably, the arc-shaped plates are spliced ​​end to end to form a circular ring, and the center of the circular ring formed by the splicing is on the same axis as the center of the upper circular plate.

[0010] Preferably, a fixing frame is fixedly installed above the supporting frame, an auxiliary motor is installed above the fixing frame, and an output shaft end of the auxiliary motor passes through the supporting frame and is fixedly installed on the shaft end of the positioning gear.

[0011] Preferably, a main gear is meshedly installed below the side gear, a main motor is fixedly connected below one of the auxiliary frame plates, and an output end of the main motor is installed on the shaft end of the main gear.

[0012] Preferably, bearings are fixedly installed above and below the ring plate, a fixed clamping plate is installed between the two bearings, and the fixed clamping plate is installed on the side end of the bearing away from the ring plate.

[0013] Preferably, the clamping assembly includes two arc-shaped groove plates that are evenly distributed on the inner wall of the ring plate in a centrally symmetrical manner, pulleys are movably installed in the side grooves of the two arc-shaped groove plates, a limiting frame is installed on the outer wall of the pulley, and the other end of the limiting frame is fixedly connected to an arc-shaped straight tooth plate.

[0014] Preferably, a first rotating frame is installed on one side of the upper surface of the arc-shaped groove plate, an auxiliary telescopic rod is installed on the other end of the first rotating frame, a second rotating frame is installed on the other end of the auxiliary telescopic rod, and the second rotating frame is installed on the arc-shaped straight tooth plate away from one end of the auxiliary telescopic rod.

[0015] Preferably, two side frame plates are installed below both sides of the positioning frame, and wheels are installed below the side frame plates.

[0016] Beneficial effects of the present invention:

[0017] 1. The demolding device for casting aluminum alloy profiles is provided with a vibration component. Since the inclined paddle plate meshes with the tooth groove of the arc plate, dislocation occurs continuously during the rotation process, and vibration is continuously generated under the elastic pressure of the elastic arc plate, providing uniform vibration for the side of the mold. In the process of dislocation movement, the auxiliary elastic plate on the upper surface of the mold continuously strikes the upper surface driven by the deformation of the elastic arc plate, and provides knocking vibration for the upper surface of the mold, thereby providing uniform vibration for the demolding process of the mold. By changing the vibration mode, it is possible to provide fitting dislocation vibration for the surrounding and upper surface of the mold, change the demolding mode of generating vibration by impact and knocking, prevent damage to the molding material and the mold during direct knocking and vibration, and improve the stability of the demolding process.

[0018] 2. The demoulding device for aluminum alloy profile casting is provided with a flip assembly. When the motor is started and rotated in the reverse direction, the main gear is driven to rotate, and then the side gear meshing with the main gear rotates accordingly. The auxiliary gear in the fixed frame is flipped along the axis of the rotating shaft, and the paddle between the teeth of the auxiliary gear is driven, and the paddle and the ring plate are connected by a ratchet. The paddle will not rotate in the reverse direction. With the cooperation of the rotating shaft at the other end and the fixed clamping plate, the clamped mold can be flipped 180 degrees to change the upper surface of the vibration operation, thereby improving the efficiency of the mold demoulding.

[0019] 3. This demoulding device for casting aluminum alloy profiles is provided with a flipping component and a vibration component. Under the vibration operation, along with the positive rotation of the main motor, the outer wall of the ring plate is driven by the shifting plate connected to the ratchet to be tilted and adjusted. At this time, it can be meshed with the tooth groove of the arc plate, so as to perform dislocation vibration during the rotation process. Under the flipping operation, the main motor is reversed, and the ratchet cannot rotate during the reversal process. The connection between the auxiliary gear and the shifting plate and the connection of the rotating shaft are used to flip and adjust the ring plate, so that the shifting plate can be flexibly switched between the meshing component and the connecting component.

[0020] 4. The demoulding device for aluminum alloy profile casting is provided with a clamping assembly, and the positioning telescopic rod is started to extend downward, and the elastic arc plate and the arc plate cooperate to contact the ring plate, and the ring plate is squeezed after contact, and the spring telescopic rod is stretched under the extension of the positioning telescopic rod, and the ring plate is placed in the middle of the outer wall of the mold, and the auxiliary telescopic rod is started, and the arc straight tooth plate is pulled in the ring plate under the cooperation of the first rotating frame and the second rotating frame, and the pulley connected to the arc straight tooth plate by the limit frame moves in the arc groove plate. The arc-shaped spur tooth plate moves along the arc of the arc-shaped groove plate. As the auxiliary telescopic rod continues to extend, the distance between the two arc-shaped spur tooth plates gradually decreases, and the mold in the ring plate is locked. After the clamping is completed, the positioning telescopic rod is started to shrink, and the spring telescopic rod follows the shrinkage. With the cooperation of the auxiliary frame plate, the ring plate is brought back to the original height of the spring telescopic rod, so that the mold to be demoulded can be quickly clamped, the efficiency of the demoulding operation is guaranteed, and the height of the demoulding operation can be quickly restored. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0024] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 4 The structure of the flip assembly of the present invention is schematically shown Figure 1 ;

[0026] Figure 5The structure of the flip assembly of the present invention is schematically shown Figure 2 ;

[0027] Figure 6 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 1 ;

[0028] Figure 7 The structure of the clamping assembly of the present invention is schematically shown in FIG. Figure 2 ;

[0029] Figure 8 This is a schematic diagram of the structure of the vibration assembly of the present invention;

[0030] Fig. 9 The present invention is Figure 7 The enlarged schematic diagram of point A in the middle;

[0031] Fig.10 The present invention is Figure 8 A magnified schematic diagram of point B in the middle.

[0032] The markings in the figure are:

[0033] 1. Positioning frame; 2. Inclined plate; 3. Spring telescopic rod; 4. Auxiliary frame plate; 5. Positioning telescopic rod; 6. Upper circular plate; 7. Elastic arc plate; 8. Side frame plate; 9. Wheel body; 10. Rotating shaft; 11. Fixed splint; 12. Bearing; 13. Ring plate; 14. Arc groove plate; 15. Pulley; 16. Limiting frame; 17. Arc straight tooth plate; 18. Conical block; 19. Side gear; 20. Fixed frame; 21. Main motor; 22. Main gear; 23. Positioning gear; 24. Auxiliary gear; 25. Support frame; 26. Auxiliary motor; 27. Arc plate; 28. First rotating frame; 29. ​​Auxiliary telescopic rod; 30. Second rotating frame; 31. Ratchet; 32. Connecting rod; 33. Paddle plate; 34. Contact plate; 35. Auxiliary elastic plate; 36. Upper arc plate; 37. Tooth groove. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail in combination with a specific embodiment under the main gear.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, a demoulding device for aluminum alloy profile casting includes a positioning frame 1, a positioning telescopic rod 5 is installed at the middle of the lower part of the positioning frame 1, a vibration component that moves in a straight line is installed at the output end of the positioning telescopic rod 5, auxiliary frame plates 4 are also slidably installed on both sides of the positioning frame 1, a flip component is installed between the two auxiliary frame plates 4, a ring plate 13 is installed in the middle of the flip component, and a clamping component that moves in a circular motion is installed on the inner wall of the ring plate 13;

[0037] The vibration assembly includes an upper circular plate 6 installed at the output end of the positioning telescopic rod 5, a plurality of elastic arc plates 7 are evenly distributed in a circumference below the upper circular plate 6, an upper arc plate 36 is installed at the other end of the plurality of elastic arc plates 7, an arc plate 27 is installed below the upper arc plate 36, a plurality of tooth grooves 37 are evenly distributed in an arc shape below the arc plate 27, inclined plates 2 are installed on both sides of the positioning frame 1, and a spring telescopic rod 3 is installed below the inclined plate 2;

[0038] During the demoulding process, the main motor 21 is started, driving the main gear 22 to rotate, and then the side gear 19 meshing with it rotates accordingly, driving the auxiliary gear 24 in the fixed frame 20 to flip, and at this time it is a positive rotation. With the cooperation of the ratchet 31, the paddle plate 33 is tilted, and with the cooperation of the connecting rod 32, the remaining paddle plates 33 and the connecting rod 32 follow the tilt with the assistance of the ratchet 31. After the tilt adjustment is completed, the positioning telescopic rod 5 is started to move downward, and with the cooperation of the upper circular plate 6, the arc plate 27 connected to the several elastic arc plates 7 is driven downward. Since the tooth groove 37 is provided under the arc plate 27, it contacts the inclined paddle plate 33 during the continuous downward movement, and a certain pressure is applied, so that the elastic arc plate 7 has a certain curvature, so that the auxiliary spring plate also contacts the upper surface of the mold. After completion, The auxiliary motor 26 is started to drive the positioning gear 23 to rotate, and the auxiliary gear 24 meshing therewith rotates accordingly, and the inclined dial plate 33 in the auxiliary gear 24 is dialed, which drives the ring plate 13 in the two bearings 12 to rotate. Since the inclined dial plate 33 is meshed with the tooth groove 37 of the arc plate 27, misalignment occurs continuously during the rotation process, and under the elastic pressure of the elastic arc plate 7, vibration is continuously generated to provide uniform vibration for the side of the mold, and during the misalignment movement, the auxiliary elastic plate 35 on the upper surface of the mold continuously strikes its upper surface under the drive of the deformation of the elastic arc plate 7, providing fitting misalignment vibration for the surrounding and upper surface of the mold, changing the demolding method of generating vibration by impact and knocking, preventing damage to the molding material and the mold during direct knocking and vibration, and improving the stability of its demolding process.

[0039] like Figure 1 , Figure 8 and Fig.10 As shown, a contact plate 34 is installed at the middle of the opposite surfaces of the plurality of elastic arc plates 7, an auxiliary elastic plate 35 is installed at one end of the contact plate 34 away from the elastic arc plate 7, a conical block 18 is installed on the lower surface of the upper circular plate 6, and a plurality of arc plates 27 are spliced ​​end to end to form a ring, and the center of the spliced ​​ring is on the same axis as the center of the upper circular plate 6;

[0040] The contact plate 34 connects the auxiliary elastic plate 35 and the elastic arc plate 7 together. The elastic arc plate 7 is continuously deformed during the dislocation movement, driving the auxiliary elastic plate 35 to follow the movement, and continuously knocking the clamped mold to generate vibration.

[0041] like Figure 1-Figure 5As shown, the flip assembly includes an auxiliary frame plate 4 installed below the spring telescopic rod 3, and a rotating shaft 10 is movably installed below the opposite surfaces of the two auxiliary frame plates 4, and a side gear 19 is installed at the other end of one of the rotating shafts 10, and a support frame 25 is fixedly installed on the side of the side gear 19 away from the rotating shaft 10, and a positioning gear 23 is rotatably installed in the middle of the support frame 25, and an auxiliary gear 24 is meshed and connected to the side of the positioning gear 23, and a shift plate 33 is movably connected between the teeth of the auxiliary gear 24, and a ratchet 31 is installed at the other end of the shift plate 33, and a plurality of ratchet wheels 31 are installed with ring plates 13, and connecting rods 32 are installed between the outer rings of adjacent ratchet wheels 31, and a fixed frame 20 is fixedly installed above the support frame 25, and an auxiliary motor 26 is installed above the fixed frame 20, and the output shaft end of the auxiliary motor 26 passes through the support frame 25. It is fixedly mounted on the shaft end of the positioning gear 23, and a main gear 22 is meshedly mounted below the side gear 19. A main motor 21 is fixedly connected to the lower side of one of the auxiliary frame plates 4, and the output end of the main motor 21 is mounted on the shaft end of the main gear 22. The auxiliary motor 26 provides power for the rotation of the ring plate 13, and the main motor 21 provides power for the ring plate 13 to flip the rotating shaft 10. The main motor 21 is mounted on the side of the auxiliary frame plate 4. Bearings 12 are fixedly mounted above and below the ring plate 13. A fixed clamping plate 11 is installed between the two bearings 12. The side of the fixed clamping plate 11 away from the ring plate 13 is installed on the side end of the bearing 12. The fixed clamping plate 11 is positioned by the cooperation of the middle bearing 12, and the side of the fixed clamping plate 11 away from the ring plate 13 is installed on the side end of the bearing 12;

[0042] When the surface being struck is changed, the positioning telescopic rod 5 is contracted, and then the arc plate 27 is separated from the outer side of the ring plate 13. After completion, the main motor 21 starts to rotate in the opposite direction, driving the main gear 22 to rotate, driving the side gear 19 meshing with it to rotate along, and the auxiliary gear 24 in the fixed frame 20 is flipped along the axis of the rotating shaft 10, and the paddle 33 between the teeth of the auxiliary gear 24 is driven, and the paddle 33 and the ring plate 13 are connected by the ratchet 31. If the paddle 33 rotates in the opposite direction, it will not rotate. With the cooperation of the rotating shaft 10 at the other end and the fixed clamping plate 11, the clamped mold is flipped 180 degrees to change the upper surface of its vibration operation, thereby improving the efficiency of its mold demolding.

[0043] like Figure 2-Figure 6As shown, the clamping assembly includes two arc-shaped slot plates 14 uniformly distributed on the inner side wall of the ring plate 13 in a centrally symmetrical manner, pulleys 15 are movably installed in the side slots of the two arc-shaped slot plates 14, and a limiting frame 16 is installed on the outer wall of the pulley 15. The other end of the limiting frame 16 is fixedly connected to an arc-shaped straight tooth plate 17, and a first rotating frame 28 is installed on one side of the upper surface of the arc-shaped slot plate 14, and an auxiliary telescopic rod 29 is installed on the other end of the first rotating frame 28. A second rotating frame 30 is installed on the other end of the auxiliary telescopic rod 29, and the second rotating frame 30 is installed on the arc-shaped straight tooth plate 17 at one end away from the auxiliary telescopic rod 29. Two side frame plates 8 are installed below the two sides of the positioning frame 1, and a wheel body 9 is installed below the side frame plates 8;

[0044] During the clamping operation, the wheel body 9 moves the whole structure to the top of the mold, and then the positioning telescopic rod 5 is started to stretch downward. Under the cooperation of the elastic arc plate 7 and the arc plate 27, the ring plate 13 is contacted, and the ring plate 13 is squeezed after contact. The spring telescopic rod 3 is stretched under the extension of the positioning telescopic rod 5, and the ring plate 13 is placed in the middle of the outer wall of the mold, and the auxiliary telescopic rod 29 is started. Under the cooperation of the first rotating frame 28 and the second rotating frame 30, the pulled arc straight tooth plate 17 moves in the ring plate 13, and the arc straight tooth plate 17 is connected by the limit frame 16. The pulley 15 moves in the arc groove plate 14, so that the arc spur plate 17 moves along the curvature of the arc groove plate 14. As the auxiliary telescopic rod 29 continues to extend, the distance between the two arc spur tooth plates 17 is gradually reduced, and the mold in the ring plate 13 is locked. After the clamping is completed, the positioning telescopic rod 5 is started to shrink, and the spring telescopic rod 3 follows the shrinkage. With the cooperation of the auxiliary frame plate 4, the ring plate 13 is brought back to the original height of the spring telescopic rod 3, so as to facilitate the rapid clamping of the mold to be demoulded, and ensure the efficiency of its demoulding operation.

[0045] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples; within the context of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0046] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A demoulding device for aluminum alloy profile casting, characterized in that: include: A positioning frame (1), a positioning telescopic rod (5) is installed in the middle of the lower part of the positioning frame (1), a vibration component that moves in a straight line is installed at the output end of the positioning telescopic rod (5), auxiliary frame plates (4) are also slidably installed on both sides of the positioning frame (1), a flip component is installed between the two auxiliary frame plates (4), a ring plate (13) is installed in the middle of the flip component, a clamping component that moves in a circular motion is installed on the inner wall of the ring plate (13), bearings (12) are fixedly installed above and below the ring plate (13), a fixed clamping plate (11) is installed between the two bearings (12), and the fixed clamping plate (11) is installed on the side end of the bearing (12) away from the ring plate (13); The vibration assembly comprises an upper circular plate (6) mounted on the output end of the positioning telescopic rod (5), a plurality of elastic arc plates (7) are evenly distributed in a circle below the upper circular plate (6), an upper arc plate (36) is mounted on the other end of the plurality of elastic arc plates (7), an arc plate (27) is mounted below the upper arc plate (36), the plurality of arc plates (27) are spliced ​​end to end to form a ring, and the center of the spliced ​​ring is on the same axis as the center of the upper circular plate (6), a plurality of tooth grooves (37) are evenly distributed in an arc shape below the arc plate (27), both sides of the positioning frame (1) are mounted with inclined plates (2), a spring telescopic rod (3) is mounted below the inclined plate (2), a contact plate (34) is mounted in the middle of the opposite surfaces of the plurality of elastic arc plates (7), an auxiliary spring plate (35) is mounted on the end of the contact plate (34) away from the elastic arc plate (7), and a conical block (18) is mounted on the lower surface of the upper circular plate (6); The flip assembly comprises an auxiliary frame plate (4) mounted below the spring telescopic rod (3), a rotating shaft (10) being movably mounted below the opposite surfaces of the two auxiliary frame plates (4), a side gear (19) being mounted on the other end of one of the rotating shafts (10), a support frame (25) being fixedly mounted on the side of the side gear (19) away from the rotating shaft (10), a positioning gear (23) being rotatably mounted in the middle of the support frame (25), an auxiliary gear (24) being meshingly connected to the side of the positioning gear (23), a shifting plate (33) being movably connected between the teeth of the auxiliary gear (24), a ratchet (31) being mounted on the other end of the shifting plate (33), a plurality of the ratchet wheels (31) being mounted with ring plates (13), and connecting rods (32) being mounted between the outer rings of adjacent ratchet wheels (31).

2. A demoulding device for aluminum alloy profile casting according to claim 1, characterized in that: A fixing frame (20) is fixedly mounted above the support frame (25), an auxiliary motor (26) is mounted above the fixing frame (20), and an output shaft end of the auxiliary motor (26) passes through the support frame (25) and is fixedly mounted on the shaft end of the positioning gear (23).

3. The demoulding device for aluminum alloy profile casting according to claim 1, characterized in that: A main gear (22) is meshedly mounted below the side gear (19), a main motor (21) is fixedly connected below the side surface of one of the auxiliary frame plates (4), and an output end of the main motor (21) is mounted on the shaft end of the main gear (22).

4. The demoulding device for aluminum alloy profile casting according to claim 1, characterized in that: The clamping assembly comprises two arc-shaped groove plates (14) uniformly distributed on the inner side wall of the ring plate (13) in a centrally symmetrical manner, pulleys (15) are movably installed in the side grooves of the two arc-shaped groove plates (14), and a limiting frame (16) is installed on the outer wall of the pulley (15), and the other end of the limiting frame (16) is fixedly connected to an arc-shaped straight tooth plate (17).

5. The demoulding device for aluminum alloy profile casting according to claim 4, characterized in that: A first rotating frame (28) is mounted on one side of the upper surface of the arc-shaped slot plate (14); an auxiliary telescopic rod (29) is mounted on the other end of the first rotating frame (28); a second rotating frame (30) is mounted on the other end of the auxiliary telescopic rod (29); and an end of the second rotating frame (30) away from the auxiliary telescopic rod (29) is mounted on the arc-shaped spur tooth plate (17).

6. The demoulding device for aluminum alloy profile casting according to claim 1, characterized in that: Two side frame plates (8) are installed below both sides of the positioning frame (1), and a wheel body (9) is installed below the side frame plates (8).

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