Raw material cutting device for processing nodular cast iron evanescent mode

Abstract

The invention belongs to the technical field of nodular cast iron evanescent mode machining, and particularly relates to a nodular cast iron evanescent mode machining raw material cutting device which comprises a workbench, two first sliding rods are slidably connected to one side of the upper end of the workbench, a blade cover is fixedly connected to the lower ends of the first sliding rods, and a cutting knife is rotationally arranged on the inner side of the blade cover. The workbench is further provided with a through hole covering type positioning assembly. The through hole covering type positioning assembly comprises adjusting plates slidably connected to the two sides of the workbench, and the upper ends of the adjusting plates are fixedly connected with second fixing rings. By means of the through hole covering type positioning assembly, after a to-be-cut raw material is fixed, the elastic cloth on the two sides is attached to the two end faces of the raw material, the through hole is covered, chippings generated in the cutting process can be intercepted by the elastic cloth, the chippings cannot be splashed into the hole, and therefore the situation that in the cutting process, the chippings are prone to being splashed into the hole due to centrifugal force or airflow, and the cutting efficiency is improved is avoided. And air holes are formed in the casting, so that the compactness is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of ductile iron lost foam processing, in particular to a raw material cutting device for ductile iron lost foam processing. Background Art

[0002] Ductile iron lost foam casting (LFC) is a specialized casting method in which a foamed plastic pattern is directly embedded in binderless dry sand. A vacuum is then applied to compact the sand mold, creating negative pressure. High-temperature molten metal is then poured in, vaporizing the foamed pattern and replacing it with metal, ultimately forming the casting. During the LFC process, due to the complex structure of ductile iron parts (such as pipe fittings and valve bodies), the foamed material must be cut to the exact shape of the casting.

[0003] Patent Publication No. CN219274700U discloses a raw material cutting device for ductile iron lost foam processing. The device comprises a base plate and an electrically operated telescopic rod. A bracket is fixedly mounted on the bottom surface of the base plate, and a docking frame is fixedly mounted on the top surface of the base plate. The docking frame has an inverted "U" shape when viewed in cross-section. The electrically operated telescopic rod is fixedly mounted on the bottom surface of the docking frame, and the end of the electrically operated telescopic rod is fixedly connected to an electric cutter. The device also includes a fixed rod, which is fixedly mounted on the output end of the electrically operated telescopic rod and has an inverted "L" shape when viewed in cross-section. During operation, the device places the material between the overlap block and the auxiliary block, then activates the electrically operated telescopic rod and the electric cutter, which completes the cut. Simultaneously, as the electrically operated telescopic rod operates, the fixed rod descends, driving the connecting shaft and fan to rotate via a tooth block and micro gear. The rotation of the fan provides a cooling effect.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] Use an electric cutter to cut the foam raw material. For cylindrical parts that need to be cut into two equal lengths (such as a ductile iron pipe fitting foam pattern with six through holes), when cutting from the center, the high-speed rotation of the cutter and the foam will rub against each other, generating fine debris. These debris can easily fly into the holes due to centrifugal force or airflow, causing air holes to form inside the casting and reducing its density. If the through holes are used as machining positioning datums, debris blockage may also cause dimensional deviations, ultimately affecting the sealing performance or assembly accuracy of the part. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention provides a raw material cutting device for ductile iron lost foam processing.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a raw material cutting device for ductile iron lost foam processing, comprising a workbench, two slide bars are slidably connected to one side of the upper end of the workbench, a blade cover is fixedly connected to the lower end of the slide bar, a cutting knife is rotatably provided inside the blade cover, and a through-hole covering positioning component is also provided on the workbench;

[0008] The through-hole covering positioning assembly includes an adjustment plate slidably connected to both sides of the workbench, the upper end of the adjustment plate is fixedly connected to a second fixing ring, the upper and lower sides of the second fixing ring are both slidably connected to a second sliding rod, one end of the second sliding rod is fixedly connected to a clamping block, and the inner ring of the second fixing ring is fixedly connected to an elastic cloth.

[0009] Preferably, a hydraulic cylinder is fixedly connected to one side of the upper end of the workbench, a piston end of the hydraulic cylinder is fixedly connected to one side of the blade cover, a motor three is fixedly connected to one side of the blade cover, and an output end of the motor three is fixedly connected to the cutting knife.

[0010] Preferably, a bidirectional threaded rod is threadedly connected to one side of the lower end of the adjustment plate, both ends of the bidirectional threaded rod are rotatably set on the workbench, a motor 1 is fixedly connected to one side of the workbench, and the output end of the motor 1 is fixedly connected to one end of the bidirectional threaded rod.

[0011] Preferably, both upper and lower sides of the second fixing ring are fixedly connected with electric push rods, and the piston end of the electric push rod is fixedly connected to one end of the second sliding rod.

[0012] Preferably, the adjustment plate is further provided with an aperture-adaptive filling component;

[0013] The aperture adaptive filling assembly includes a sliding rod three fixedly connected to one side of the adjustment plate, the sliding rod three is slidably connected to a fixing ring one, a plurality of radial rods are evenly distributed and slidably connected along the radial direction on the fixing ring one, one end of the radial rod is fixedly connected to a fixing column, a plurality of connecting rods three are radially distributed and rotatably provided on the fixing column, a slider is rotatably provided at one end of the connecting rod three, and the slider is slidably connected to the expansion plate.

[0014] Preferably, a threaded rod 2 is threadedly connected to one side of a lower end of the fixing ring, both ends of the threaded rod 2 are rotatably arranged on the adjustment plate, a motor 2 is fixedly connected to one side of the upper end of the adjustment plate, and the output end of the motor 2 is fixedly connected to one end of the threaded rod 2.

[0015] Preferably, the outer ring of the fixed ring is rotatably provided with a rotating ring, one end of the radial rod is rotatably provided with a connecting rod, and one end of the connecting rod is rotatably provided on the rotating ring.

[0016] Preferably, one end of the radial rod is threadedly connected to a threaded rod 1, one end of the threaded rod 1 is rotatably set on a fixing ring 1, one side of the fixing ring 1 is fixedly connected to a motor 4, and the output end of the motor 4 is fixedly connected to one end of the threaded rod 1.

[0017] Preferably, the fixed column is sleeved and slidably connected with a threaded ring, and the threaded ring is radially distributed and rotatably provided with multiple connecting rods 2, one end of the connecting rod 2 is rotatably connected to one end of the expansion plate, one side of the threaded ring is threadedly connected to a threaded rod 3, one end of the threaded rod 3 is rotatably set on the radial rod, one end of the radial rod is fixedly connected to a motor 5, and the output end of the motor 5 is fixedly connected to one end of the threaded rod 3.

[0018] Preferably, a vacuum cleaner is provided on one side of the workbench, and a dust suction port is provided at the air inlet of the vacuum cleaner.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The raw material cutting device for ductile iron lost foam processing described in the present invention utilizes a through-hole covering positioning assembly. When the raw material to be cut is fixed, the elastic cloths on both sides also fit with the two end surfaces of the raw material to cover the through-hole opening. The debris generated during the cutting process will be intercepted by the elastic cloth, and the debris will not splash into the hole, thereby avoiding the situation in which the debris is easily splashed into the hole due to centrifugal force or airflow during the cutting process, resulting in the formation of pores inside the casting and reduced density; at the same time, it also avoids the situation in which dimensional deviation caused by debris blocking the through-hole ultimately affects the sealing or assembly accuracy of the parts.

[0021] 2. The present invention discloses a raw material cutting device for ductile iron lost foam processing. Utilizing an aperture-adaptive filling assembly, after covering both ends of the raw material with elastic cloth, the elastic cloth portion is squeezed into the through-hole, forcing the elastic cloth squeezed into the through-hole to adhere to the hole wall, thereby filling the through-hole with the elastic cloth. During the cutting process, debris is prevented from entering the through-hole wall through the gaps in the raw material, further preventing debris from adhering to the through-hole wall and affecting casting quality. Furthermore, after a single raw material is cut, a vacuum cleaner and a fixed column are used to evenly absorb debris adhering to the surface of the elastic cloth, preventing debris from being carried back into the raw material through-hole during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 1. It is a schematic diagram of the three-dimensional structure of the adjustment plate;

[0025] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed ring;

[0027] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure at the fixed column;

[0029] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0031] Figure 9 It is a schematic diagram of the three-dimensional structure of the blade cover.

[0032] In the figure: 1. Motor 1; 2. Workbench; 3. Hydraulic cylinder; 4. Slide rod 1; 5. Blade cover; 6. Bidirectional threaded rod; 7. Dust suction port; 8. Adjustment plate; 9. Elastic cloth; 10. Electric push rod; 11. Clamping block; 12. Slide rod 2; 13. Threaded rod 1; 14. Fixed ring 1; 15. Rotating ring; 16. Connecting rod 1; 17. Threaded rod 2; 18. Slide rod 3; 19. Motor 2; 20. Motor 3; 21. Radial rod; 22. Motor 4; 23. Expansion plate; 24. Fixed column; 25. Connecting rod 2; 26. Connecting rod 3; 27. Slider; 28. Motor 5; 29. ​​Threaded rod 3; 30. Threaded ring; 31. Vacuum cleaner; 32. Fixed ring 2; 33. Cutting knife. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Please refer to Figures 1-9 The present invention provides a technical solution: a raw material cutting device for ductile iron lost foam processing, comprising a workbench 2, two slide bars 4 being slidably connected to one side of the upper end of the workbench 2, a blade cover 5 being fixedly connected to the lower end of the slide bar 4, a cutting knife 33 being rotatably provided inside the blade cover 5, and a through-hole covering positioning component being further provided on the workbench 2;

[0035] The through-hole covering positioning assembly includes an adjustment plate 8 slidably connected to both sides of the workbench 2, the upper end of the adjustment plate 8 is fixedly connected to a fixing ring 2 32, the upper and lower sides of the fixing ring 2 32 are slidably connected to a slide rod 2 12, one end of the slide rod 2 12 is fixedly connected to a clamping block 11, and the inner ring of the fixing ring 2 32 is fixedly connected to an elastic cloth 9.

[0036] In this embodiment, Figure 1-Figure 3 、 Figure 9 As shown, a hydraulic cylinder 3 is fixedly connected to one side of the upper end of the workbench 2, the piston end of the hydraulic cylinder 3 is fixedly connected to one side of the blade cover 5, the blade cover 5 is fixedly connected to a motor 3 20, and the output end of the motor 3 20 is fixedly connected to the cutting knife 33.

[0037] One side of the lower end of the adjustment plate 8 is threadedly connected to a bidirectional threaded rod 6, both ends of the bidirectional threaded rod 6 are rotatably set on the workbench 2, one side of the workbench 2 is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to one end of the bidirectional threaded rod 6.

[0038] The upper and lower sides of the second fixing ring 32 are fixedly connected with the electric push rod 10, and the piston end of the electric push rod 10 is fixedly connected to one end of the second sliding rod 12.

[0039] Specifically, in the prior art, electric cutters are often used to cut foam raw materials. For cylindrical parts that need to be cut into two equal lengths, such as a ductile iron pipe foam mold with six through holes, when cutting from the center, the high-speed rotation of the cutter rubs against the foam, generating fine debris. These debris can easily fly into the holes due to centrifugal force or airflow, causing pores within the casting and reducing its density. If the through holes serve as machining datums, clogged debris can also cause dimensional deviations, ultimately affecting the sealing and assembly accuracy of the part.

[0040] Therefore, in order to solve the above problems, when using this embodiment, the cylindrical foam raw material to be cut is placed between two pieces of elastic cloth 9, and then the motor 1 is started. The motor 1 drives the bidirectional threaded rod 6 to rotate, so that the two adjustment plates 8 approach each other until the elastic cloth 9 fits with the two ends of the raw material. Then, the electric push rod 10 drives the sliding rod 2 12 to slide on the fixing ring 2 32, so that the clamping block 11 approaches the raw material and clamps the raw material.

[0041] At this time, the cutting knife 33 is aligned with the middle of the raw material, and then the hydraulic cylinder 3 and the motor three 20 are started. The hydraulic cylinder 3 drives the cutting knife 33 to descend. At the same time, the motor three 20 drives the cutting knife 33 to rotate to cut the raw material. During the cutting process, since the elastic cloth 9 is in contact with both ends of the raw material, the through-hole opening of the raw material is covered and the debris will not splash into the hole, thereby avoiding the situation in which the debris is easily splashed into the hole due to centrifugal force or airflow during the cutting process, resulting in the formation of pores inside the casting and reduced density; at the same time, it also avoids the situation in which the dimensional deviation caused by the clogging of the through-hole by the debris ultimately affects the sealing or assembly accuracy of the parts.

[0042] In this embodiment, Figure 2-Figure 8 As shown, the adjustment plate 8 is also provided with an aperture-adaptive filling component;

[0043] The aperture-adaptive filling assembly includes a sliding rod 3 18 fixedly connected to one side of the adjustment plate 8, the sliding rod 3 18 is slidably connected to a fixing ring 14, a plurality of radial rods 21 are evenly distributed and slidably connected along the radial direction on the fixing ring 14, a fixing column 24 is fixedly connected at one end of the radial rod 21, a plurality of connecting rods 3 26 are radially distributed and rotatably provided on the fixing column 24, a slider 27 is rotatably provided at one end of the connecting rod 3 26, and the slider 27 is slidably connected to the expansion plate 23.

[0044] One side of the lower end of the fixing ring 14 is threadedly connected to a threaded rod 2 17 , both ends of the threaded rod 2 17 are rotatably set on the adjustment plate 8 , one side of the upper end of the adjustment plate 8 is fixedly connected to a motor 2 19 , and the output end of the motor 2 19 is fixedly connected to one end of the threaded rod 2 17 .

[0045] A rotating ring 15 is rotatably provided on the outer ring of the fixed ring 14 , a connecting rod 16 is rotatably provided on one end of the radial rod 21 , and one end of the connecting rod 16 is rotatably provided on the rotating ring 15 .

[0046] One end of the radial rod 21 is threadedly connected to the threaded rod 13, and one end of the threaded rod 13 is rotatably set on the fixed ring 14. One side of the fixed ring 14 is fixedly connected to the motor 4 22, and the output end of the motor 4 22 is fixedly connected to one end of the threaded rod 13.

[0047] The fixed column 24 is sleeved and slidably connected with a threaded ring 30. The threaded ring 30 is radially distributed and rotatably provided with multiple connecting rods 25. One end of the connecting rod 25 is rotatably connected to one end of the expansion plate 23. One side of the threaded ring 30 is threadedly connected to a threaded rod 3 29. One end of the threaded rod 3 29 is rotatably set on the radial rod 21. One end of the radial rod 21 is fixedly connected to a motor 5 28. The output end of the motor 5 28 is fixedly connected to one end of the threaded rod 3 29.

[0048] A dust collector 31 is provided on one side of the workbench 2 , and a dust suction port 7 is provided at the air inlet of the dust collector 31 .

[0049] Specifically, in the above embodiment, although the elastic cloth 9 can be used to cover the through-hole openings at both ends of the raw material, when the cutting knife 33 cuts the raw material from the middle, debris easily enters the inner wall of the through-hole through the gap in the raw material, and the debris still adheres to the inner wall of the through-hole;

[0050] Therefore, to address the above-mentioned issues, in this embodiment, when in use, the six through-holes of the cylindrical member are typically evenly distributed along the circumference, with one hole every sixty degrees. Motor 4 22 drives threaded rod 13 to rotate, causing radial rod 21 on one side to slide on fixed ring 14. This then drives rotating ring 15 to rotate under the action of connecting rod 16. The remaining connecting rods 16 then drive radial rods 21 to slide on fixed ring 14, causing multiple fixed posts 24 to align simultaneously with the through-holes. Motor 2 19 then drives threaded rod 2 17 to rotate, causing fixed ring 14 to move laterally. This causes fixed posts 24 to squeeze elastic fabric 9, forcing it into the through-holes until the ends of the posts 24 reach the middle of the through-holes. Then, motor 5 28 is activated, driving threaded rod 3 29 to rotate, causing threaded ring 30 to slide on the posts 24. This allows, in conjunction with connecting rods 25 and 3 26, expansion plate 23 to squeeze elastic fabric 9 until the elastic fabric 9, squeezed into the through-holes, adheres to the hole wall. The raw material is then cut using the cutting knife 33. During the cutting process, since the elastic cloth 9 fills the through-holes of the raw material, debris will not enter the inner wall of the through-hole from the gap where the raw material is cut, thereby further avoiding the situation where debris adheres to the inner wall of the through-hole and affects the quality of the casting.

[0051] Moreover, since the elastic cloth 9 intercepts the debris, it is inevitable that the surface of the elastic cloth 9 will be attached with debris. When too much debris accumulates on the surface of the elastic cloth 9, the elastic cloth 9 will be in contact with the raw material during subsequent use, and the debris will be brought back into the through-holes of the raw material, thereby causing repeated contamination of the debris and affecting the quality of the casting. Therefore, in order to avoid this problem, during the cutting process, the vacuum cleaner 31 is turned on to absorb the flying debris through the vacuum port 7. When a raw material is cut, the elastic cloth 9 is driven to return to its original position, and the vacuum cleaner 31 can also absorb the debris attached to the surface of the elastic cloth 9. In some cases, however, debris has strong adhesion and may hide in the folds and crevices of the elastic cloth 9, making it difficult to attract. Therefore, threaded rod 2 17 can be driven to rotate, causing fixed ring 14 to move back and forth, using fixed column 24 to squeeze the elastic cloth 9. At the same time, radial rod 21 can be driven to slide on fixed ring 14 again to change the orientation of fixed column 24 to control the squeezing area, causing the elastic cloth 9 to vibrate in different directions, promoting the detachment of debris from its surface and making it easier to attract. Thus, after a single piece of raw material is cut, the vacuum cleaner 31 and fixed column 24 cooperate to evenly absorb debris attached to the surface of the elastic cloth 9, avoiding the situation where debris attached to the surface of the elastic cloth 9 is carried back into the raw material through-holes during subsequent use, thereby causing repeated contamination by debris.

[0052] Working Principle: The cylindrical foam material to be cut is placed between two pieces of elastic cloth 9. Motor 1 is then activated, driving bidirectional threaded rod 6 to rotate, bringing two adjustment plates 8 closer together until the elastic cloth 9 is in contact with the ends of the material. Then, electric push rod 10 drives slide rod 2 12 to slide on retaining ring 2 32, bringing clamping block 11 closer to the material and clamping it. At this point, cutting blade 33 is aligned with the center of the material. Hydraulic cylinder 3 and motor 3 20 are activated, driving cutting blade 33 downward. Simultaneously, motor 3 20 rotates cutting blade 33 to cut the material. During the cutting process, the elastic cloth 9 is in contact with the ends of the material, covering the opening of the material, preventing debris from splashing into the opening. This prevents debris from being splashed into the opening due to centrifugal force or airflow, which could cause pores within the casting and reduce its density. This also prevents debris from clogging the opening, leading to dimensional deviations and ultimately affecting the sealing and assembly accuracy of the part. Typically, the six through-holes of the cylindrical member are evenly distributed along the circumference, with one hole every sixty degrees. Motor 4 22 drives threaded rod 13 to rotate, causing radial rod 21 on one side to slide on fixed ring 14. Connecting rod 16 then drives rotating ring 15 to rotate, causing the remaining connecting rods 16 to drive radial rods 21 to slide on fixed ring 14, causing multiple fixed posts 24 to align with the through-holes simultaneously. Motor 2 19 then drives threaded rod 2 17 to rotate, causing fixed ring 14 to move laterally. This causes fixed posts 24 to squeeze elastic fabric 9, forcing it into the through-holes until the ends of the posts 24 reach the middle of the through-holes. Then, motor 5 28 is activated, driving threaded rod 3 29 to rotate, causing threaded ring 30 to slide on fixed posts 24. This allows expansion plate 23 to squeeze elastic fabric 9 with the cooperation of connecting rods 25 and 3 26, until the elastic fabric 9 squeezed into the through-holes adheres to the hole wall. The raw material is then cut using the cutting blade 33. During the cutting process, since the elastic cloth 9 fills the through-holes of the raw material, debris will not enter the inner wall of the through-hole from the gaps in the raw material, thereby further preventing debris from adhering to the inner wall of the through-hole and affecting the quality of the casting. In addition, since the elastic cloth 9 intercepts the debris, it is inevitable that debris will adhere to the surface of the elastic cloth 9. When too much debris accumulates on the surface of the elastic cloth 9, it will cause the elastic cloth 9 to carry the debris back into the raw material through-hole during subsequent use. Therefore, to avoid this problem, during the cutting process, the vacuum cleaner 31 is turned on to absorb the flying debris through the suction port 7. After the cutting of a piece of raw material is completed, the elastic cloth 9 is driven to return to its original position, and the vacuum cleaner 31 can also absorb the debris adhering to the surface of the elastic cloth 9.In some cases, however, debris has a strong adhesion and may hide in the folds and crevices of the elastic cloth 9, making it difficult to attract. Therefore, threaded rod 2 17 can be driven to rotate, causing fixed ring 14 to move back and forth, using fixed column 24 to squeeze the elastic cloth 9. At the same time, the orientation of fixed column 24 can be changed to control the squeezing area, causing the elastic cloth 9 to vibrate, promoting the detachment of debris from its surface and making it easier to attract. Thus, after a single piece of raw material is cut, the vacuum cleaner 31 and fixed column 24 work together to evenly absorb debris attached to the surface of the elastic cloth 9, preventing debris from being carried back into the raw material through-holes during subsequent use.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material cutting device for ductile iron lost foam processing, comprising a workbench (2), characterized in that: One side of the upper end of the workbench (2) is slidably connected to two slide bars (4), the lower end of the slide bar (4) is fixedly connected to a blade cover (5), a cutting knife (33) is rotatably provided inside the blade cover (5), and a through-hole covering type positioning component is also provided on the workbench (2); The through-hole covering positioning assembly includes an adjustment plate (8) slidably connected to both sides of the workbench (2), the upper end of the adjustment plate (8) is fixedly connected to a second fixing ring (32), the upper and lower sides of the second fixing ring (32) are slidably connected to a second sliding rod (12), one end of the second sliding rod (12) is fixedly connected to a clamping block (11), and the inner ring of the second fixing ring (32) is fixedly connected to an elastic cloth (9).

2. The raw material cutting device for ductile iron lost foam processing according to claim 1, characterized in that: A hydraulic cylinder (3) is fixedly connected to one side of the upper end of the workbench (2), a piston end of the hydraulic cylinder (3) is fixedly connected to one side of the blade cover (5), a motor three (20) is fixedly connected to one side of the blade cover (5), and an output end of the motor three (20) is fixedly connected to the cutting knife (33).

3. The raw material cutting device for ductile iron lost foam processing according to claim 1, characterized in that: One side of the lower end of the adjustment plate (8) is threadedly connected to a bidirectional threaded rod (6), both ends of the bidirectional threaded rod (6) are rotatably arranged on the workbench (2), one side of the workbench (2) is fixedly connected to a motor 1 (1), and the output end of the motor 1 (1) is fixedly connected to one end of the bidirectional threaded rod (6).

4. The raw material cutting device for ductile iron lost foam processing according to claim 1, characterized in that: The upper and lower sides of the second fixing ring (32) are fixedly connected to the electric push rod (10), and the piston end of the electric push rod (10) is fixedly connected to one end of the second sliding rod (12).

5. The raw material cutting device for ductile iron lost foam processing according to claim 1, characterized in that: The adjustment plate (8) is also provided with an aperture-adaptive filling component; The aperture-adaptive filling assembly includes a sliding rod three (18) fixedly connected to one side of the adjustment plate (8), the sliding rod three (18) is slidably connected to a fixing ring one (14), a plurality of radial rods (21) are uniformly distributed along the radial direction and slidably connected to the fixing ring one (14), one end of the radial rod (21) is fixedly connected to a fixing column (24), a plurality of connecting rods three (26) are radially distributed and rotatably provided on the fixing column (24), one end of the connecting rod three (26) is rotatably provided with a slider (27), and the slider (27) is slidably connected to the expansion plate (23).

6. The raw material cutting device for ductile iron lost foam processing according to claim 5, characterized in that: One side of the lower end of the fixing ring 1 (14) is threadedly connected to the second threaded rod (17), both ends of the second threaded rod (17) are rotatably arranged on the adjustment plate (8), and one side of the upper end of the adjustment plate (8) is fixedly connected to the second motor (19), and the output end of the second motor (19) is fixedly connected to one end of the second threaded rod (17).

7. The raw material cutting device for ductile iron lost foam processing according to claim 6, characterized in that: The outer ring of the fixed ring (14) is rotatably provided with a rotating ring (15), one end of the radial rod (21) is rotatably provided with a connecting rod (16), and one end of the connecting rod (16) is rotatably provided on the rotating ring (15).

8. The raw material cutting device for ductile iron lost foam processing according to claim 7, characterized in that: One end of the radial rod (21) is threadedly connected to a threaded rod (13), one end of the threaded rod (13) is rotatably arranged on a fixing ring (14), one side of the fixing ring (14) is fixedly connected to a motor (22), and the output end of the motor (22) is fixedly connected to one end of the threaded rod (13).

9. The raw material cutting device for ductile iron lost foam processing according to claim 5, characterized in that: The fixing column (24) is sleeved and slidably connected with a threaded ring (30), and the threaded ring (30) is radially distributed and rotatably provided with a plurality of connecting rods (25). One end of the connecting rod (25) is rotatably connected to one end of the expansion plate (23). One side of the threaded ring (30) is threadedly connected to a threaded rod (29), and one end of the threaded rod (29) is rotatably provided on the radial rod (21). One end of the radial rod (21) is fixedly connected to a motor (28), and the output end of the motor (28) is fixedly connected to one end of the threaded rod (29).

10. The raw material cutting device for ductile iron lost foam processing according to claim 1, characterized in that: A dust collector (31) is provided on one side of the workbench (2), and a dust suction port (7) is provided at the air inlet of the dust collector (31).

Images