CN115502152B - Post-treatment process for casting molding of nickel ore molten iron - Google Patents
Post-treatment process for casting molding of nickel ore molten iron Download PDFInfo
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- CN115502152B CN115502152B CN202211071919.0A CN202211071919A CN115502152B CN 115502152 B CN115502152 B CN 115502152B CN 202211071919 A CN202211071919 A CN 202211071919A CN 115502152 B CN115502152 B CN 115502152B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention belongs to the technical field of nickel ore molten iron casting, and particularly relates to a post-treatment process for nickel ore molten iron casting, which comprises the following steps: step one, demolding: opening the casting mould, and then taking out the cast ingot formed by pouring the nickel ore molten iron from the molding sand; step two, sand cleaning: removing residual molding sand on the surface of the ingot, and collecting the molding sand; step three, polishing: polishing the surface of the casting after the pouring opening is removed, and removing burrs on the surface of the casting; wherein, the second step is completed by adopting a post-treatment device for casting molding of nickel ore molten iron. In the process of removing the molding sand on the surface of the cylindrical casting, an operator only needs to place and take the casting, so that the manpower consumption is reduced, and the processing efficiency is improved; and the molding sand is always positioned inside the rotary drum after being separated from the surface of the casting, and operators can collect and recycle the molding sand after finishing processing, so that the molding sand is not only prevented from being wasted, but also the situation that the molding sand damages the operators is avoided.
Description
Technical Field
The invention belongs to the technical field of nickel ore molten iron casting, and particularly relates to a post-treatment process for nickel ore molten iron casting.
Background
The nickel iron ore is one of laterite nickel ores, is commonly used for casting various electronic, chemical and mechanical parts, and mainly aims at the working conditions with severe working environments, such as high temperature, high pressure, corrosive environments and the like. The nickel ore molten iron is poured into a mould to be cooled and shaped into an ingot, and the ingot is required to be subjected to a series of post-treatment such as demoulding, molding sand removal, burr removal, polishing and the like before leaving the factory.
In actual processing production, the shapes of castings are various, for the castings with uncomplicated shapes, such as cylindrical castings, cube castings and the like, operators can carry out the next treatment after only removing the molding sand on the surfaces of the castings, but for the cylindrical castings with grooves on the surfaces, the operators must knock the castings by means of rubber hammers to loosen the molding sand in the grooves of the castings, and then remove the molding sand in the grooves of the castings by means of air guns, so that the process consumes more manpower, the processing efficiency is lower, and the high-speed air flow sprayed by the air guns can carry the molding sand around, so that the molding sand is wasted and is extremely easy to cause injury to the operators; in the process of removing the molding sand in the groove of the tubular casting, air flow sprayed from the air gun to the surface of the casting can drive the molding sand to directly strike the inner wall of the casting, so that the inside of the casting is scratched.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the following technical scheme:
a post-treatment process for nickel ore molten iron casting molding comprises the following steps:
step one, demolding: opening the casting mould, and then taking out the cast ingot formed by pouring the nickel ore molten iron from the molding sand;
step two, sand cleaning: removing residual molding sand on the surface of the ingot, and collecting the molding sand;
step three, polishing: polishing the surface of the casting after the pouring opening is removed, and removing burrs on the surface of the casting;
the second step is completed by adopting a nickel ore molten iron casting and forming post-treatment device, wherein the nickel ore molten iron casting and forming post-treatment device comprises a bottom plate, a base is fixedly arranged on the bottom plate, an annular seat is fixedly arranged on the base, a horizontal rotary drum is rotatably arranged in the annular seat, and a first gear ring is fixedly sleeved on the outer wall of the rotary drum; the base is fixedly provided with a first motor through a motor seat, and an output shaft of the first motor is fixedly provided with a first driving gear meshed with the first gear ring; a plurality of rubber blocks are uniformly and fixedly arranged on the inner wall of the rotary drum along the circumferential direction.
The air injection mechanism is arranged at the position, located behind the base, on the bottom plate and comprises a pipeline bracket, an air delivery pipe, an air pump bracket, an air blowing pump, an air inlet pipe, an air injection groove, a second gear ring, a second motor and a second driving gear; the pipeline support is fixedly arranged on the bottom plate, the pipeline support is rotatably provided with a gas pipe which coincides with the axis of the rotary drum, the gas pump frame is fixedly arranged on the bottom plate and positioned at the rear of the pipeline support, the gas pump is fixedly arranged on the gas pump support, the gas pump is fixedly provided with a gas inlet pipe which coincides with the axis of the gas pipe and is in rotary fit with the axis of the gas pipe, and the outer wall of the gas inlet pipe is jointed with the inner wall of the gas pipe; the front end face of the gas pipe is connected with a gas spraying pipe which coincides with the axis of the gas pipe, the front end face of the gas spraying pipe is closed, the circumferential surface of the gas spraying pipe is uniformly provided with a plurality of gas spraying grooves communicated with the inside of the gas spraying pipe, a sealing plate which is jointed with the rear end face of the rotary drum is fixedly arranged on the bottom plate, and the gas spraying pipe penetrates through the sealing plate and stretches into the rotary drum; the gas transmission pipe is fixedly sleeved with a second gear ring, the pipeline support is fixedly provided with a second motor, and the output shaft of the second motor is fixedly provided with a second driving gear meshed with the second gear ring.
As a preferable technical scheme of the invention, the outer wall of the air jet pipe is attached to the inner wall of the air jet pipe, a plurality of cutting bars are uniformly and fixedly arranged on the outer wall of the air jet pipe along the circumferential direction, and slots matched with the cutting bars are formed on the inner wall of the air jet pipe.
As a preferable technical scheme of the invention, a plurality of lug plates are uniformly and fixedly arranged on the outer wall of the air jet pipe along the circumferential direction, a telescopic spring is fixedly connected between each lug plate and the front end face of the air jet pipe, a hemispherical block is fixedly arranged on the front end face of each lug plate, and a plurality of guide blocks with arc-shaped sections are uniformly and fixedly arranged on the rear end face of the sealing plate along the circumferential direction of the air jet pipe.
As a preferable technical scheme of the invention, the front end face of the sealing plate is fixedly provided with the arc-shaped baffle plate which is arranged along the front-back direction, the opening of the arc-shaped baffle plate faces obliquely downwards, and the inner cambered surface of the arc-shaped baffle plate is attached to the outer circumferential surface of the air ejector tube.
As a preferable technical scheme of the invention, the rubber blocks are strip-shaped, the rubber blocks are arranged along the front-back direction, and the surface of the rubber block facing the axis of the rotary drum is an arc-shaped surface.
As a preferable technical scheme of the invention, an annular cavity which is coincident with the axis of the rotary drum is arranged on the front end face of the rotary drum, and a through groove which is communicated with the annular cavity is arranged on the inner circumferential face of the rotary drum and positioned between two adjacent rubber blocks; two baffle plates are fixedly arranged on the bottom plate, the rear end faces of the baffle plates are attached to the front end face of the rotary drum, a gap is formed between the bottom ends of the two baffle plates, and the position of the gap corresponds to the bottom of the annular cavity; an electric sliding block is arranged on the bottom plate in a sliding manner along the front-back direction, a transverse L-shaped rod is fixedly arranged on the electric sliding block, a pushing plate positioned in front of the rotary drum is fixedly arranged at the end part of the L-shaped rod, and the pushing plate is matched with the inner wall of the annular cavity; the material receiving box is fixedly arranged on the bottom plate corresponding to the position of the gap between the two baffle plates.
As a preferable technical scheme of the invention, an arc-shaped groove is formed in the front end face of the sealing plate, the virtual axis of the arc-shaped groove coincides with the axis of the rotary drum, the bottom end of the arc-shaped groove is positioned below the horizontal plane where the axis of the rotary drum is positioned, a chute which is communicated with the top end and the bottom end of the arc-shaped groove is formed in the front end face of the sealing plate, a movable block is arranged in the arc-shaped groove and the chute, the movable block can move along the arc-shaped groove and the chute and can rotate freely, a disc which is jointed with the front end face of the sealing plate is fixedly arranged on the movable block, a sealing cylinder is fixedly arranged on the front end face of the disc, and the axis of the sealing cylinder is perpendicular to the sealing plate.
As a preferable technical scheme of the invention, the outer cambered surface of the arc-shaped groove is provided with a horizontal accommodating groove, a stop block is horizontally and dynamically arranged in the accommodating groove, a reset spring is fixedly connected between the stop block and the inner wall of the accommodating groove, the outer end surface of the stop block is an arc-shaped surface, and the top surface of the stop block is a horizontal surface.
The invention has at least the following beneficial effects: (1) In the process of removing the molding sand on the surface of the cylindrical casting, the casting is driven to ascend by the rotary drum and the rubber block, then the casting is separated from the rubber block by self gravity and is impacted with the rubber block below in the process of descending, so that the molding sand in the groove on the surface of the casting is dispersed, and in the process, high-speed air flow is sprayed to the surface of the casting by the air spraying mechanism, and the dispersed molding sand is blown away from the surface of the casting; according to the invention, manual sand removal operation is not needed, and an operator only needs to place and take the casting, so that the manpower consumption is reduced, and the processing efficiency is improved; in the process of removing the molding sand on the surface of the casting, the molding sand is always positioned in the rotary drum after being separated from the surface of the casting, and operators can collect and recycle the molding sand after finishing processing, so that the molding sand is prevented from being wasted, and the situation that the molding sand damages the operators is avoided.
(2) In the continuous rotation process of the rotary drum, the casting periodically impacts the rubber block and falls onto the rubber block to continue to rotate along with the rotary drum, and the angle of the casting is changed in the process of each rotation of the rotary drum, namely the impact position of the casting surface and the rubber block is different each time, so that the sand in grooves on the casting surface can be dispersed, and the air injection mechanism can also clean the sand in the grooves on the casting surface, so that the effect of cleaning the sand on the casting surface is improved; in the air injection mechanism, the air injection pipe can continuously rotate and simultaneously reciprocate along the axial direction, so that the air flow acting on the gradual surface has a plurality of movement directions, the contact effect of the air flow and the surface of the casting is improved, and the removal effect of the air flow on the molding sand on the surface of the casting is further improved.
(3) According to the invention, the inner wall of the cylindrical casting is supported and sealed through the sealing cylinder, the movable block, the disc and the sealing cylinder synchronously move along with the casting in the process of gradually following the rotation and the rising of the rubber block and the rotary drum, and the movable block, the disc and the sealing cylinder synchronously move along with the casting after the casting is separated from the rubber block, so that the inner wall of the casting is sealed through the sealing cylinder, molding sand in a groove on the surface of the casting cannot enter the casting to contact with the inner wall of the casting under the action of airflow blowing, and the condition that the inner wall of the casting is scratched is avoided; the baffle block is arranged in the arc-shaped groove, and the baffle block can allow the movable block to move from bottom to top and not allow the movable block to move from top to bottom, so that the movable block can only move downwards along the chute together with the disc, the sealing cylinder and the casting, and the casting is ensured to be smoothly reset and form impact with the rubber block below.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a step diagram of a post-treatment process for casting and molding nickel ore molten iron in an embodiment of the invention.
Fig. 2 is a schematic view of a first perspective structure of a post-treatment device for casting molding of nickel ore molten iron in an embodiment of the invention.
Fig. 3 is a schematic perspective view of a movable block, a disc and a sealing cylinder according to an embodiment of the present invention.
FIG. 4 is a schematic view showing the internal structures of an air inlet pipe, an air delivery pipe and an air injection pipe according to an embodiment of the present invention.
Fig. 5 is a schematic view of a second perspective structure of a post-treatment device for casting molding of nickel ore molten iron in an embodiment of the invention.
Fig. 6 is an enlarged schematic view at a in fig. 5.
Fig. 7 is a front view of a nickel ore molten iron casting post-treatment device in an embodiment of the invention.
Fig. 8 is a schematic view of the internal structure at B in fig. 7.
FIG. 9 is a schematic view showing the structure of a sealing plate, an arc groove and a chute according to an embodiment of the present invention.
In the figure: 1. a bottom plate; 2. a base; 3. an annular seat; 4. a rotating drum; 5. a first ring gear; 6. a first motor; 7. a first drive gear; 8. a rubber block; 9. a conduit bracket; 10. a gas pipe; 11. an air pump bracket; 12. an air blowing pump; 13. an air inlet pipe; 14. a gas lance; 15. a jet slot; 16. a sealing plate; 17. a second ring gear; 18. a second motor; 19. a second drive gear; 20. cutting; 21. a slot; 22. ear plates; 23. a telescopic spring; 24. hemispherical blocks; 25. a guide block; 26. an arc baffle; 27. an annular cavity; 28. a through groove; 29. a striker plate; 30. an electric slide block; 31. an L-shaped rod; 32. a pushing plate; 33. a material receiving box; 34. an arc-shaped groove; 35. a chute; 36. a movable block; 37. a disc; 38. a sealing cylinder; 39. a receiving groove; 40. a stop block; 41. and a return spring.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
As shown in fig. 1, the embodiment provides a post-treatment process for casting molding of nickel ore molten iron, which comprises the following steps:
step one, demolding: opening the casting mould, and then taking out the cast ingot formed by pouring the nickel ore molten iron from the molding sand;
step two, sand cleaning: removing residual molding sand on the surface of the ingot, and collecting the molding sand;
step three, polishing: polishing the surface of the casting after the pouring opening is removed, and removing burrs on the surface of the casting;
the second step is completed by adopting a nickel ore molten iron casting and forming post-treatment device, as shown in fig. 2 and 5, the nickel ore molten iron casting and forming post-treatment device comprises a bottom plate 1, a base 2 is fixedly arranged on the bottom plate 1, an annular seat 3 is fixedly arranged on the base 2, a horizontal rotary drum 4 is rotatably arranged in the annular seat 3, and a first gear ring 5 is fixedly sleeved on the outer wall of the rotary drum 4; the base 2 is fixedly provided with a first motor 6 through a motor seat, and the output shaft of the first motor 6 is fixedly provided with a first driving gear 7 meshed with the first gear ring 5; a plurality of rubber blocks 8 are uniformly and fixedly arranged on the inner wall of the rotary drum 4 along the circumferential direction; the rubber block 8 is strip-shaped, the rubber block 8 is arranged along the front-back direction, and the surface of the rubber block 8 facing the axis of the rotary drum 4 is an arc-shaped surface.
In the working process, a demoulded casting is placed between two adjacent rubber blocks 8 by manpower, the casting is supported by the two adjacent rubber blocks 8, then a first driving gear 7 is driven to rotate by a first motor 6, the first driving gear 7 drives a first gear ring 5, a rotary drum 4, the rubber blocks 8 and the casting to rotate, and as the rubber blocks 8 only play a supporting role on the casting, after the rotary drum 4, the rubber blocks 8 and the casting rotate to a certain angle, the casting breaks away from the rubber blocks 8 and falls under the action of self gravity, the casting finally collides with the rubber blocks 8 below and stays between the two adjacent rubber blocks 8 below, in the process of collision between the casting and the rubber blocks 8, molding sand in a groove on the surface of the casting is vibrated and loosened, part of the molding sand falls into the rotary drum 4, and part of the molding sand still remains on the surface of the casting; with the continuous rotation of the rotary drum 4, the casting periodically rises along with the rubber block 8 and then breaks away from the rubber block 8 and collides with the rubber block 8 below, and as the casting can rotate a certain angle along with the rotary drum 4 every time, the part of the casting, which is impacted with the rubber block 8 every time, is different, so that the surface of the casting can be impacted with the rubber block 8 everywhere, and the removal effect of molding sand everywhere on the surface of the casting is improved.
As shown in fig. 2, 4, 5, 6 and 7, an air injection mechanism is mounted on the base plate 1 at a position behind the base 2, and the air injection mechanism comprises a pipeline bracket 9, an air delivery pipe 10, an air pump bracket 11, an air injection pump 12, an air inlet pipe 13, an air injection pipe 14, an air injection groove 15, a second gear ring 17, a second motor 18 and a second driving gear 19; the pipeline bracket 9 is fixedly arranged on the bottom plate 1, the pipeline bracket 9 is rotatably provided with a gas pipe 10 which is coincident with the axis of the rotary drum 4, the gas pump bracket 11 is fixedly arranged on the bottom plate 1 and positioned at the rear of the pipeline bracket 9, the gas pump bracket 11 is fixedly provided with a gas blowing pump 12, the gas blowing pump 12 is fixedly provided with a gas inlet pipe 13 which is coincident with the axis of the gas pipe 10 and is in rotary fit with the axis of the gas pipe 10, and the outer wall of the gas inlet pipe 13 is attached to the inner wall of the gas pipe 10; the front end face of the gas pipe 10 is connected with a gas spraying pipe 14 which coincides with the axis of the gas spraying pipe, the front end face of the gas spraying pipe 14 is closed, a plurality of gas spraying grooves 15 which are communicated with the inside of the gas spraying pipe are uniformly formed in the circumferential face of the gas spraying pipe 14, a sealing plate 16 which is jointed with the rear end face of the rotary drum 4 is fixedly arranged on the bottom plate 1, and the gas spraying pipe 14 penetrates through the sealing plate 16 and stretches into the rotary drum 4; an arc-shaped baffle plate 26 arranged along the front-rear direction is fixedly arranged on the front end surface of the sealing plate 16, the opening of the arc-shaped baffle plate 26 faces obliquely downwards, and the inner cambered surface of the arc-shaped baffle plate 26 is attached to the outer circumferential surface of the air jet pipe 14; the outer wall of the air jet pipe 14 is attached to the inner wall of the air duct 10, a plurality of cutting 20 are uniformly and fixedly arranged on the outer wall of the air jet pipe 14 along the circumferential direction, and slots 21 matched with the cutting 20 are formed in the inner wall of the air duct 10; a plurality of lug plates 22 are uniformly and fixedly arranged on the outer wall of the air jet pipe 14 along the circumferential direction, a telescopic spring 23 is fixedly connected between each lug plate 22 and the front end surface of the air duct 10, a hemispherical block 24 is fixedly arranged on the front end surface of each lug plate 22, and a plurality of guide blocks 25 with arc-shaped sections are uniformly and fixedly arranged on the rear end surface of the sealing plate 16 along the circumferential direction of the air jet pipe 14; the gas pipe 10 is fixedly sleeved with a second gear ring 17, the pipeline bracket 9 is fixedly provided with a second motor 18, and the output shaft of the second motor 18 is fixedly provided with a second driving gear 19 meshed with the second gear ring 17.
While the rotary drum 4 continuously rotates, the air injection mechanism injects high-speed air flow into the rotary drum 4, and the specific working process is as follows: the second motor 18 drives the second driving gear 19 to rotate, the second driving gear 19 drives the second gear ring 17 and the gas pipe 10 to rotate, the gas pipe 10 drives the cutting 20, the gas pipe 14, the lug plate 22, the telescopic spring 23 and the hemispherical block 24 to rotate, when the hemispherical block 24 rotates to a position attached to the guide block 25, the guide block 25 pushes the hemispherical block 24 to be far away from the rotary drum 4, the lug plate 22 and the gas pipe 14 are synchronously far away from the rotary drum 4, and the telescopic spring 23 is compressed; when the hemispherical block 24 rotates to a position separated from the guide block 25, the telescopic spring 23 is reset, and the lug plate 22 and the air jet pipe 14 synchronously move close to the rotary drum 4 to reset; in the process, the air blowing pump 12 continuously feeds air into the air inlet pipe 13, and high-speed air flows are ejected from the air injection groove 15 after passing through the air inlet pipe 13, the air delivery pipe 10 and the air injection pipe 14; in the process of rising or falling of the casting, the high-speed air flow sprayed out of the air injection groove 15 acts on the casting to clean the residual molding sand on the casting, and the air injection pipe 14 also moves back and forth along the axial direction in the continuous rotation process, so that the high-speed air flow sprayed out of the air injection groove 15 can be fully contacted with the surface of the casting, thereby playing a role in fully cleaning the molding sand; and because of the existence of the arc-shaped baffle plate 26, part of the air injection grooves 15 are blocked and sealed by the arc-shaped baffle plate 26, and only the air injection grooves 15 facing the castings are in a circulation state, so that the air flow loss is avoided, the air flow speed sprayed from the air injection grooves 15 is also improved, and the cleaning effect of air flow on molding sand is further improved.
As shown in fig. 2, the front end surface of the rotary drum 4 is provided with an annular cavity 27 which coincides with the axis of the rotary drum, and the inner circumferential surface of the rotary drum 4 is provided with a through groove 28 which is communicated with the annular cavity 27 and is positioned between two adjacent rubber blocks 8; two baffle plates 29 are fixedly arranged on the bottom plate 1, the rear end faces of the baffle plates 29 are attached to the front end face of the rotary drum 4, a gap is formed between the bottom ends of the two baffle plates 29, and the position of the gap corresponds to the bottom of the annular cavity 27; an electric sliding block 30 is slidably arranged on the bottom plate 1 along the front-back direction, a transverse L-shaped rod 31 is fixedly arranged on the electric sliding block 30, a pushing plate 32 positioned in front of the rotary drum 4 is fixedly arranged at the end part of the L-shaped rod 31, and the pushing plate 32 is matched with the inner wall of the annular cavity 27; a material receiving box 33 is fixedly arranged on the bottom plate 1 at a position corresponding to a gap between the two material blocking plates 29.
Before the work starts, the L-shaped rod 31 and the pushing plate 32 are driven to move towards the rotary drum 4 by the electric sliding block 30, and the pushing plate 32 enters the annular cavity 27 until being attached to the rear end surface of the annular cavity 27; during operation, the molding sand falling off from the casting falls into the annular cavity 27 through the through groove 28 and slides to the bottom of the annular cavity 27 along the surface of the annular cavity 27, and the molding sand cannot fall off from the annular cavity 27 due to the blocking effect of the stop plate 29; after the work is finished, the L-shaped rod 31 and the pushing plate 32 are driven by the electric sliding block 30 to move away from the rotary drum 4, and in the process that the pushing plate 32 leaves, the molding sand accumulated at the bottom of the annular cavity 27 is pushed out of the annular cavity 27, and the molding sand automatically falls into the material receiving box 33.
As shown in fig. 3, 7, 8 and 9, an arc groove 34 is formed in the front end surface of the sealing plate 16, the virtual axis of the arc groove 34 coincides with the axis of the rotary drum 4, the bottom end of the arc groove 34 is positioned below the horizontal plane where the axis of the rotary drum 4 is positioned, a chute 35 which is communicated with the top end and the bottom end of the arc groove 34 is formed in the front end surface of the sealing plate 16, a movable block 36 is mounted in the arc groove 34 and the chute 35, the movable block 36 can move along the arc groove 34 and the chute 35 and can rotate freely, a disc 37 which is attached to the front end surface of the sealing plate 16 is fixedly mounted on the movable block 36, a sealing cylinder 38 is fixedly mounted on the front end surface of the disc 37, and the axis of the sealing cylinder 38 is perpendicular to the sealing plate 16; the outer cambered surface of the arc-shaped groove 34 is provided with a horizontal accommodating groove 39, a stop block 40 is horizontally and dynamically arranged in the accommodating groove 39, a reset spring 41 is fixedly connected between the stop block 40 and the inner wall of the accommodating groove 39, the outer end surface of the stop block 40 is an arc-shaped surface, and the top surface of the stop block 40 is a horizontal surface.
Before the operation starts, a casting is inserted into the sealing cylinder 38, the outer wall of the sealing cylinder 38 is attached to the inner wall of the casting, the rotating cylinder 4 and the rubber block 8 rotate to drive the casting to ascend, the casting drives the sealing cylinder 38, the disc 37 and the movable block 36 to ascend synchronously along the arc-shaped groove 34, when the movable block 36 moves to a position close to the top of the arc-shaped groove 34, the stop block 40 is pushed by the movable block 36 to move into the accommodating groove 39, the reset spring 41 is compressed, then the stop block 40 is separated from the movable block 36, the reset spring 41 resets, and the movable block 36 enters a region where the arc-shaped groove 34 and the chute 35 meet; because the casting will separate from the rubber block 8 under the action of self gravity, and the stop block 40 stops the movable block 36 so that the movable block 36 cannot return to the arc groove 34, the movable block 36 can only enter the chute 35 and descend along the chute 35, the disc 37, the sealing cylinder 38 and the casting synchronously descend along the chute 35 until the casting impacts the rubber block 8 below, and then the above process is repeated; in the process, the sealing cylinder 38 is always attached to the inner wall of the casting, and molding sand carried by high-speed air flow sprayed by the air spraying mechanism cannot enter the casting, so that the condition that the inner wall of the casting is scratched by the molding sand is avoided.
The specific working procedure of the second step in this embodiment is as follows: before the work starts, the L-shaped rod 31 and the pushing plate 32 are driven by the electric sliding block 30 to move towards the rotary drum 4, and the pushing plate 32 enters the annular cavity 27 until being attached to the rear end surface of the annular cavity 27; the casting is then manually inserted onto the seal cartridge 38; the first motor 6 is turned on again, the rotary drum 4, the rubber blocks 8 and the castings synchronously rotate, the castings ascend, and as the rubber blocks 8 only play a supporting role on the castings, when the rotary drum 4, the rubber blocks 8 and the castings rotate to a certain angle, the castings can separate from the rubber blocks 8 and fall down under the action of self gravity, the castings finally collide with the rubber blocks 8 below and stay between the two adjacent rubber blocks 8 below, in the process of collision between the castings and the rubber blocks 8, molding sand in grooves on the surfaces of the castings is vibrated and loosened, part of the molding sand falls into the rotary drum 4, and part of the molding sand still remains on the surfaces of the castings; in the process, high-speed air flow is sprayed to the surface of the casting through the air spraying mechanism, and the air flow acts on the surface of the casting to clean the residual molding sand on the surface of the casting; the molding sand separated from the surface of the casting under the action of vibration and air blowing falls into the annular cavity 27 through the through groove 28 and slides to the bottom of the annular cavity 27 along the surface of the annular cavity 27, after the work is finished, the L-shaped rod 31 and the pushing plate 32 are driven by the electric sliding block 30 to move away from the rotary drum 4, the molding sand piled up at the bottom of the annular cavity 27 is pushed out of the annular cavity 27 in the process that the pushing plate 32 leaves, and the molding sand automatically falls into the material receiving box 33; finally, the cleaned casting is manually pulled out of the sealing cylinder 38.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A post-treatment process for nickel ore molten iron casting molding comprises the following steps:
step one, demolding: opening the casting mould, and then taking out the cast ingot formed by pouring the nickel ore molten iron from the molding sand;
step two, sand cleaning: removing residual molding sand on the surface of the ingot, and collecting the molding sand;
step three, polishing: polishing the surface of the casting after the pouring opening is removed, and removing burrs on the surface of the casting;
wherein, step two adopts a nickel ore deposit molten iron casting post-treatment device cooperation to accomplish, its characterized in that: the nickel ore molten iron casting and forming aftertreatment device comprises a bottom plate (1), wherein a base (2) is fixedly installed on the bottom plate (1), an annular seat (3) is fixedly installed on the base (2), a horizontal rotary drum (4) is rotatably installed inside the annular seat (3), and a first gear ring (5) is fixedly sleeved on the outer wall of the rotary drum (4); a first motor (6) is fixedly arranged on the base (2) through a motor seat, and a first driving gear (7) meshed with the first gear ring (5) is fixedly arranged on an output shaft of the first motor (6); a plurality of rubber blocks (8) are uniformly and fixedly arranged on the inner wall of the rotary drum (4) along the circumferential direction;
an air injection mechanism is arranged at the position, located behind the base (2), on the bottom plate (1) and comprises a pipeline bracket (9), an air pipe (10), an air pump bracket (11), an air blowing pump (12), an air inlet pipe (13), an air injection pipe (14), an air injection groove (15), a second gear ring (17), a second motor (18) and a second driving gear (19); the pipeline support (9) is fixedly arranged on the bottom plate (1), the pipeline support (9) is rotatably provided with a gas pipe (10) which is coincident with the axis of the rotary drum (4), the air pump support (11) is fixedly arranged on the bottom plate (1) and positioned at the rear of the pipeline support (9), the air pump support (11) is fixedly provided with an air blowing pump (12), the air blowing pump (12) is fixedly provided with an air inlet pipe (13) which is coincident with the axis of the gas pipe (10) and is in rotary fit with the axis of the gas pipe (10), and the outer wall of the air inlet pipe (13) is attached to the inner wall of the gas pipe (10); the front end face of the gas pipe (10) is connected with a gas spraying pipe (14) which coincides with the axis of the gas pipe, the front end face of the gas spraying pipe (14) is closed, a plurality of gas spraying grooves (15) which are communicated with the inside of the gas spraying pipe are uniformly formed in the circumferential face of the gas spraying pipe (14), a sealing plate (16) which is jointed with the rear end face of the rotary drum (4) is fixedly arranged on the bottom plate (1), and the gas spraying pipe (14) penetrates through the sealing plate (16) and stretches into the rotary drum (4); the gas pipe (10) is fixedly sleeved with a second gear ring (17), the pipeline bracket (9) is fixedly provided with a second motor (18), and the output shaft of the second motor (18) is fixedly provided with a second driving gear (19) meshed with the second gear ring (17).
2. The post-treatment process for nickel ore molten iron casting molding according to claim 1, wherein the post-treatment process comprises the following steps of: the outer wall of the air jet pipe (14) is attached to the inner wall of the air jet pipe (10), a plurality of cutting strips (20) are uniformly and fixedly installed on the outer wall of the air jet pipe (14) along the circumferential direction, and slots (21) matched with the cutting strips (20) are formed in the inner wall of the air jet pipe (10).
3. The post-treatment process for nickel ore molten iron casting molding according to claim 2, wherein the post-treatment process comprises the following steps of: a plurality of lug plates (22) are uniformly and fixedly arranged on the outer wall of the air jet pipe (14) along the circumferential direction, a telescopic spring (23) is fixedly connected between the lug plates (22) and the front end face of the air jet pipe (10), a hemispherical block (24) is fixedly arranged on the front end face of the lug plates (22), and a plurality of guide blocks (25) with arc-shaped cross sections are uniformly and fixedly arranged on the rear end face of the sealing plate (16) along the circumferential direction of the air jet pipe (14).
4. The post-treatment process for nickel ore molten iron casting molding according to claim 1, wherein the post-treatment process comprises the following steps of: an arc-shaped baffle plate (26) which is arranged along the front-rear direction is fixedly arranged on the front end surface of the sealing plate (16), an opening of the arc-shaped baffle plate (26) faces obliquely downwards, and an inner cambered surface of the arc-shaped baffle plate (26) is attached to the outer circumferential surface of the air ejector tube (14).
5. The post-treatment process for nickel ore molten iron casting molding according to claim 1, wherein the post-treatment process comprises the following steps of: the rubber block (8) is strip-shaped, the rubber block (8) is arranged along the front-back direction, and the surface of the rubber block (8) facing the axis of the rotary drum (4) is an arc-shaped surface.
6. The post-treatment process for nickel ore molten iron casting molding according to claim 1, wherein the post-treatment process comprises the following steps of: an annular cavity (27) which is coincident with the axis of the rotary drum (4) is formed in the front end face of the rotary drum (4), and a through groove (28) which is communicated with the annular cavity (27) is formed in the inner circumferential face of the rotary drum (4) and positioned between two adjacent rubber blocks (8); two baffle plates (29) are fixedly arranged on the bottom plate (1), the rear end faces of the baffle plates (29) are attached to the front end face of the rotary drum (4), a gap is formed between the bottom ends of the two baffle plates (29), and the position of the gap corresponds to the bottom of the annular cavity (27); an electric sliding block (30) is slidably arranged on the bottom plate (1) along the front-back direction, a transverse L-shaped rod (31) is fixedly arranged on the electric sliding block (30), a pushing plate (32) positioned in front of the rotary drum (4) is fixedly arranged at the end part of the L-shaped rod (31), and the pushing plate (32) is matched with the inner wall of the annular cavity (27); the material receiving box (33) is fixedly arranged on the bottom plate (1) corresponding to the position of the gap between the two baffle plates (29).
7. The post-treatment process for nickel ore molten iron casting molding according to claim 1, wherein the post-treatment process comprises the following steps of: an arc groove (34) is formed in the front end face of the sealing plate (16), the virtual axis of the arc groove (34) coincides with the axis of the rotary drum (4), the bottom end of the arc groove (34) is located below the horizontal plane where the axis of the rotary drum (4) is located, a chute (35) which is communicated with the top end and the bottom end of the arc groove (34) is formed in the front end face of the sealing plate (16), a movable block (36) is mounted in the arc groove (34) and the chute (35), the movable block (36) moves along the arc groove (34) and the chute (35) and can rotate freely, a disc (37) which is attached to the front end face of the sealing plate (16) is fixedly mounted on the front end face of the disc (37), and the axis of the sealing drum (38) is perpendicular to the sealing plate (16).
8. The post-treatment process for nickel ore molten iron casting according to claim 7, wherein the post-treatment process comprises the following steps of: a horizontal accommodating groove (39) is formed in the outer cambered surface of the arc-shaped groove (34), a stop block (40) is horizontally and dynamically arranged in the accommodating groove (39), a reset spring (41) is fixedly connected between the stop block (40) and the inner wall of the accommodating groove (39), the outer end surface of the stop block (40) is an arc-shaped surface, and the top surface of the stop block (40) is a horizontal surface.
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