CN116921632B - Die for casting impeller of mining fan - Google Patents
Die for casting impeller of mining fan Download PDFInfo
- Publication number
- CN116921632B CN116921632B CN202311209594.2A CN202311209594A CN116921632B CN 116921632 B CN116921632 B CN 116921632B CN 202311209594 A CN202311209594 A CN 202311209594A CN 116921632 B CN116921632 B CN 116921632B
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- Prior art keywords
- die
- rod
- fixedly connected
- casting
- hopper
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- 238000005266 casting Methods 0.000 title claims abstract description 38
- 238000005065 mining Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 17
- 239000007924 injection Substances 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 14
- 230000006835 compression Effects 0.000 description 17
- 238000007906 compression Methods 0.000 description 17
- 230000000903 blocking effect Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention belongs to the technical field of casting equipment, and particularly relates to a die for casting a mining fan impeller, which comprises a supporting seat, wherein a lower die and four supporting columns are fixedly arranged on the upper surface of the supporting seat, a forming groove is formed in the upper surface of the lower die, a lifting plate is slidably arranged on the outer surface of each supporting column, an upper die is fixedly arranged on the lower surface of each lifting plate, and a forming block is fixedly connected with the lower surface of each upper die. The upper surface of lifter plate is provided with annotates the material mouth, annotates the material mouth and runs through lifter plate, last mould and shaping piece in proper order, annotates the material mouth and is connected with annotates the hopper to pass through annotating the hopper and let in pouring liquid to annotating the material mouth. The main body of the injection hopper is of a hollow sphere structure, the upper part of the injection hopper is connected with a conical inlet, and the inside of the injection hopper is fixedly connected with a filter screen. The injection hopper is provided with the filter screen, so that the casting liquid can be prevented from rotating to roll air, and bubbles can be filtered on the upper part of the filter screen.
Description
Technical Field
The invention belongs to the technical field of casting equipment, and particularly relates to a die for casting a mining fan impeller.
Background
The mining fan is one of axial-flow fans, and is separated and classified independently because of the particularity of the use industry and the applicable places and the large difference between the performance parameter and the external dimension and the general axial-flow ventilation, and is mainly applied to mine ventilation.
The impeller in the mining fan is manufactured by adopting a casting mould, and at present, when the impeller is cast by using the casting mould in the prior art, the problems frequently occur, namely, when gravity casting is performed, if the gravity casting is performed, if the gravity casting is performed improperly, casting liquid is easily caused to rotate to roll up gas, so that the casting has air holes and slag inclusions; secondly, in the existing casting structure, air or external impurities are easy to be mixed in casting liquid in the process of die assembly and casting, so that the problems of air holes, slag inclusion and the like possibly exist in impeller products, the quality of the impeller is reduced, and the service time of the impeller is shortened; thirdly, the operation degree of difficulty when the impeller drawing of patterns is great, is inconvenient for drawing of patterns, and then has reduced the production efficiency of impeller.
Disclosure of Invention
In order to solve the technical problems, the invention provides a die for casting a mining fan impeller.
The invention adopts the following technical scheme:
the die for casting the mining fan impeller comprises a supporting seat, wherein a lower die and four supporting columns are fixedly arranged on the upper surface of the supporting seat, a forming groove is formed in the upper surface of the lower die, a lifting plate is slidably arranged on the outer surface of each supporting column, an upper die is fixedly arranged on the lower surface of the lifting plate, and a forming block is fixedly connected with the lower surface of the upper die. The upper surface of lifter plate is provided with annotates the material mouth, annotates the material mouth and runs through lifter plate, last mould and shaping piece in proper order, annotates the material mouth and is connected with annotates the hopper to pass through annotating the hopper and let in pouring liquid to annotating the material mouth. The main part of annotating the hopper is cavity spheroid structure, and its upper portion is connected with the toper import, the inside fixedly connected with filter screen of annotating the hopper, filter screen horizontal installation is in annotating the spheroidal middle part of hopper, filter screen upper portion is provided with removes bubble mechanism, removes bubble mechanism and includes the arc shell, sliding connection has two to remove bubble depression bars in the arc shell, through spring coupling between two remove bubble depression bars to two lower parts that remove bubble depression bars all with middle depression bar sliding connection, the outside fixedly connected with distance rod of arc shell, after the one end of distance rod runs through the lateral wall of annotating the hopper with annotate the outside bubble power unit that removes of hopper and be connected.
The upper surface of lifter plate is provided with the subassembly of bleeding, the subassembly of bleeding includes the piston tube, the fixed upper surface that sets up at the lifter plate of piston tube, the connecting pipe is installed in the one end intercommunication of piston tube, the connecting pipe is connected with the pipeline of bleeding, the pipeline of bleeding is L type pipeline, and runs through lifter plate, last mould and shaping piece in proper order, piston tube inside slidable mounting has the piston, piston fixed mounting has a screw thread section of thick bamboo, the one end of screw thread section of thick bamboo extends to the outside and the threaded rod threaded connection of piston tube, the threaded rod is rotatory under actuating mechanism's drive.
The shaping piece is provided with the tip recess, and the tip recess sets up the juncture at shaping piece and bleed pipeline, the slip is provided with the shutoff piece in the tip recess, and the shutoff piece can be with tip recess shutoff and flush with the lateral wall of shaping piece, shutoff actuating mechanism is connected to the shutoff piece, and shutoff actuating mechanism is fixed to be set up inside last mould.
The driving mechanism comprises a worm wheel, the worm wheel is fixedly arranged on the outer surface of the threaded rod, the lifting plate is in threaded connection with a threaded column, the top end of the threaded column is provided with a worm, the worm is in meshed transmission with the worm wheel, and the bottom end of the threaded column is in rotary connection with the supporting seat.
The upper surface of supporting seat is provided with seal assembly, seal assembly includes the closed frame, and the closed frame is the framework structure and sets up a week around the surface of bed die, the closed frame can reciprocate to can shelter from the closure to the faying surface when last mould and bed die combine.
The utility model discloses a sealing frame, including sealing frame, fixed mounting, the one end fixed mounting of fixed mounting has the driven rack of vertical setting, left side one the surface sliding sleeve of support column has telescopic spring, telescopic spring's one end and the last fixed surface of supporting seat are connected, and other end fixed mounting has the sliding plate, sliding plate and this support column sliding connection, sliding plate fixedly connected with connecting block, the one end fixedly connected with of connecting block is the drive rack of vertical setting, and the drive rack can be moved under the promotion of lifter, drive rack and driven rack are located drive gear's both sides respectively and all with drive gear meshing transmission, drive gear fixedly connected with dwang, and the dwang rotates with the lateral wall of bed die to be connected.
The screw thread post is connected with vibration subassembly, vibration subassembly includes hollow fixed box, fixed box fixed mounting is at the upper surface of supporting seat, the inside of fixed box is provided with connecting spring, connecting spring one end and fixed box inner wall fixed connection, and other end fixed mounting has solid fixed ring, and the striking pole runs through connecting spring and solid fixed ring setting in proper order to striking pole and solid fixed ring fixed connection, the both ends of striking pole run through respectively and extend to the outside of fixed box and with fixed box sliding connection, the one end and the lateral wall contact of bed die of striking pole, the other end receives reciprocating drive mechanism's drive.
The reciprocating driving mechanism comprises a cam, two mounting plates are fixedly arranged at the end parts of the striking rod, a roller is rotatably arranged between the two mounting plates through a rotating shaft, the outer surface of the cam is in contact with the outer surface of the roller, and the cam is fixedly connected with the threaded column.
One end of the bubble removal pressure rod is arranged to be a spherical end face, the outer surface of the bubble removal pressure rod is fixedly connected with a strip-shaped sliding block, the inner wall of the arc-shaped shell is provided with a strip-shaped sliding groove, and the bubble removal pressure rod is in sliding connection with the arc-shaped shell through the strip-shaped sliding block and the strip-shaped sliding groove.
The upper surface of the supporting seat is fixedly provided with a lifting power mechanism, and the upper end of the lifting power mechanism is connected with a lifting plate.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, the casting liquid is injected through the injection hopper, and the filter screen is arranged on the injection hopper, so that on one hand, the casting liquid can be prevented from rotating to roll air, air bubbles can be filtered on the upper part of the filter screen, and on the other hand, the buffer effect can be realized, and turbulence and secondary oxidation slag inclusion can be reduced. And, through setting up bubble removal mechanism, the bubble on the upper portion of the filter screen is broken regularly, avoids influencing the pouring speed.
2. According to the invention, the air extraction assembly is arranged, so that when the upper die moves downwards and the lower die is closed, air between the upper die and the lower die is extracted outwards as much as possible, excessive air in a cast product is avoided, air holes are generated, and the defect rate of a casting is reduced.
In addition, the power of the air extraction assembly is from the lifting action of the lifting plate, and the power of the air extraction assembly and the lifting action of the lifting plate are linked, so that the power consumption of the whole structure is reduced.
3. According to the invention, the sealing assembly is arranged, so that when the upper die moves downwards and the lower die is closed, the sealing assembly can seal the joint of the upper die and the lower die, the entry of external air and impurities is prevented in the casting process, the pollution and the adverse effect are avoided, and the quality of products is improved.
4. The vibration assembly is arranged, so that the lower die can be impacted, the impeller finished product is loosened in the forming groove, the casting is separated from the inner wall of the forming groove, and the casting is conveniently demoulded.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic perspective view (with parts removed) of the present invention.
Fig. 3 is an enlarged structural view at a in fig. 1.
Fig. 4 is an enlarged structural view at B in fig. 1.
Fig. 5 is a schematic diagram of a connection structure of a sliding plate and a driving rack according to the present invention.
Fig. 6 is a schematic structural view of the enclosure frame of the present invention.
Fig. 7 is a schematic view of the internal structure of the injection hopper of the present invention.
Fig. 8 is a right side view of the arc-shaped housing and the bubble removal press bar of fig. 7 (the arc-shaped housing is cut away).
Fig. 9 is an enlarged structural view at C in fig. 1.
Legend description:
1. a support base; 2. a lower die; 3. a forming groove; 4. a support column; 5. a lifting plate; 6. a closure assembly; 61. a telescopic spring; 62. a sliding plate; 63. a drive rack; 64. a closing frame; 65. a fixed rod; 66. a driven rack; 67. a rotating lever; 68. a transmission gear; 69. a connecting block; 7. a vibration assembly; 71. a fixed box; 72. a connecting spring; 73. a fixing ring; 74. a striker rod; 75. a mounting plate; 76. a roller; 77. a cam; 8. an air extraction assembly; 81. a piston cylinder; 82. a connecting pipe; 83. a piston; 84. a thread cylinder; 85. a threaded rod; 86. a worm wheel; 87. a threaded column; 88. a worm; 9. an upper die; 10. molding blocks; 11. a material injection port; 12. a filling hopper; 121. a bubble removal power mechanism; 122. a tapered inlet; 123. a filter screen; 124. a bubble removal compression bar; 125. an arc-shaped housing; 126. a thrust rod; 127. a spring; 128. a middle compression bar; 13. an air extraction pipeline; 131. an end groove; 132. a block; 133. a blocking driving mechanism; 14. and a lifting power mechanism.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the present invention provides a technical solution: the die for casting the mining fan impeller comprises a supporting seat 1, wherein a lower die 2 and four supporting columns 4 are fixedly arranged on the upper surface of the supporting seat 1, a forming groove 3 is formed in the upper surface of the lower die 2, a die core is arranged in the forming groove 3, a lifting plate 5 is slidably arranged on the outer surface of the supporting column 4, an upper die 9 is fixedly arranged on the lower surface of the lifting plate 5, and a forming block 10 is fixedly connected with the lower surface of the upper die 9. The upper surface of the supporting seat 1 is fixedly provided with two lifting power mechanisms 14, the upper ends of the lifting power mechanisms 14 are connected with the lifting plate 5, and the lifting power mechanisms 14 are hydraulic cylinders or air cylinders. The above structures are all the structure forms of the prior art, and need not be described in detail.
As shown in fig. 1, 2, 7 and 8, the upper surface of the lifting plate 5 is provided with a material injection port 11, the material injection port 11 sequentially penetrates through the lifting plate 5, the upper die 9 and the forming block 10, casting liquid is guided between the upper die 9 and the lower die 2, the material injection port 11 is fixedly connected with a material injection hopper 12, and the material injection hopper 12 is fixedly arranged on the upper portion of the lifting plate 5.
The main part of annotating hopper 12 is cavity spheroid structure, and its upper portion is connected with toper import 122, the inside fixedly connected with filter screen 123 of annotating hopper 12, filter screen 123 horizontal installation is in the spheroidal middle part of annotating hopper 12. The setting of filter screen 123 can reduce the velocity of flow of pouring liquid to a certain extent, and the spheroid structure of injection hopper 12 makes the pouring liquid passageway diameter after flowing through filter screen 123 reduce to have certain acceleration to the pouring liquid again, and then offset the influence of filter screen 123 to the velocity of flow.
After long-term use, some bubbles or foam remain on the upper part of the filter screen 123, which affects the circulation of the casting solution, so that a bubble removing mechanism is arranged on the upper part of the filter screen 123. The bubble removing mechanism comprises an arc-shaped shell 125, two bubble removing compression rods 124 are slidably connected in the arc-shaped shell 125, and the lower part of the arc-shaped shell 125 is opened to avoid affecting the contact between the two bubble removing compression rods 124 and the filter screen 123. The two bubble removal compression rods 124 are connected through a spring 127, and the cross-sectional width change of the spherical structure of the injection hopper 12 is adapted through compressing the spring 127, so that bubbles can be completely broken through the filter screen 123.
The lower parts of the two bubble removal compression bars 124 are slidably connected with the middle compression bar 128, specifically, the middle compression bar 128 is inserted into the two bubble removal compression bars 124, the bottom of the middle compression bar 128 is flush with the bottom of the bubble removal compression bars 124, the space between the two bubble removal compression bars 124 is avoided, and part of the surface of the filter screen 123 is omitted.
The outside fixedly connected with thrust rod 126 of arc shell 125, behind the lateral wall of thrust rod 126 run through injection hopper 12, be connected with the outside bubble removal power unit 121 of injection hopper 12, bubble removal power unit 121 is fixed to be set up in lifter plate 5 upper portion, bubble removal power unit 121 adopts the cylinder. The bubble removing power mechanism 121 pushes the arc-shaped shell 125 to move through the pushing rod 126, so that the two bubble removing compression rods 124 and the middle compression rod 128 are driven to scrape the surface of the filter screen 123, and bubbles on the surface of the filter screen are broken.
One end of the bubble removal compression bar 124 is provided with a spherical end surface, the outer surface of the bubble removal compression bar 124 is fixedly connected with a bar-shaped sliding block, the inner wall of the arc-shaped shell 125 is provided with a bar-shaped sliding groove, and the bubble removal compression bar 124 is in sliding connection with the arc-shaped shell 125 through the matching of the bar-shaped sliding block and the bar-shaped sliding groove.
As shown in fig. 1, fig. 2 and fig. 9, the upper surface of the lifting plate 5 is provided with an air extraction assembly 8, the air extraction assembly 8 comprises a piston cylinder 81, the piston cylinder 81 is fixedly arranged on the upper surface of the lifting plate 5, one end of the piston cylinder 81 is connected with a connecting pipe 82, the connecting pipe 82 is connected with an air extraction pipeline 13, the air extraction pipeline 13 is an L-shaped pipeline and sequentially penetrates through the lifting plate 5, the upper die 9 and the forming block 10, a piston 83 is slidably mounted inside the piston cylinder 81, a threaded cylinder 84 is fixedly mounted on the piston 83, one end of the threaded cylinder 84 extends to the outer portion of the piston cylinder 81 and is in threaded connection with a threaded rod 85, and the other end of the threaded rod 85 is rotationally connected with a vertical plate at the top of the lifting plate 5. The threaded rod 85 rotates under the drive of the drive mechanism, the drive mechanism comprises a worm wheel 86, the worm wheel 86 is fixedly arranged on the outer surface of the threaded rod 85, the lifting plate 5 is in threaded connection with a threaded column 87, the top end of the threaded column 87 is provided with a worm 88, the worm 88 is in meshed transmission with the worm wheel 86, and the bottom end of the threaded column 87 is in rotary connection with the supporting seat 1.
In the above structure, in the process of downward movement of the lifting plate 5, the threaded column 87 is rotated through the screw transmission, along with the rotation of the threaded column 87, the worm 88 at the end part of the threaded column drives the worm wheel 86 to rotate, the threaded rod 85 and the worm wheel 86 simultaneously rotate, the threaded rod 85 can enable one end of the threaded cylinder 84 to move towards the outside of the piston cylinder 81 through the screw transmission, and simultaneously drives the piston 83 to move outwards, so that the air is pumped outwards through the connecting pipe 82, when the position of the forming block 10 is close to that of the forming groove 3, the air between the forming block and the forming groove is pumped outwards, micro negative pressure is generated in the casting space, and then the air in the casting space is reduced, so that the air holes are avoided in the casting process. In addition, when the lifting plate 5 moves upwards, the threaded column 87 is reversed under the action of the threads, so that the threaded cylinder 84 drives the piston 83 to move backwards, and the gas in the piston cylinder 81 is blown into the forming groove 3, so that the formed impeller is cooled, and the demoulding is facilitated.
In order to avoid the casting liquid blocking the air extraction pipeline 13 on the forming block 10 in the casting process, the forming block 10 is provided with an end groove 131, the end groove 131 is arranged at the junction of the forming block 10 and the air extraction pipeline 13, a blocking block 132 is slidably arranged in the end groove 131, and the blocking block 132 can simultaneously block the air extraction pipeline 13 and the end groove 131. And the blocking piece 132 is flush with the sidewall of the molding block 10, avoiding affecting the shape of the product. The blocking block 132 is connected with the blocking driving mechanism 133, the blocking driving mechanism 133 is fixedly arranged inside the upper die 9, the blocking driving mechanism 133 can adopt an air cylinder, the blocking driving mechanism 133 acts before pouring liquid enters the liquid, the blocking block 132 is driven to simultaneously block the air suction pipeline 13 and the end groove 131, and after an impeller product is formed, the blocking driving mechanism 133 drives the blocking block 132 to move upwards, so that the finished product can be blown conveniently.
As shown in fig. 1, fig. 2, fig. 3, fig. 5, fig. 6, the upper surface of the supporting seat 1 is provided with a sealing assembly 6, the sealing assembly 6 includes a sealing frame 64, the sealing frame 64 is a frame structure and is disposed around the outer surface of the lower mold 2, the inner wall of the sealing frame is attached to the outer wall of the lower mold 2, the shape and the external dimension of the upper mold 9 and the lower mold 2 are the same, and when the upper mold 9 and the lower mold 2 are combined, the sealing frame 64 can be attached to the outer walls of the upper mold and the lower mold 2. The sealing frame 64 can move up and down, and can block and seal the joint surface when the upper die 9 and the lower die 2 are joined.
The fixed rod 65 is fixedly mounted on the side wall of the sealing frame 64, the driven rack 66 which is vertically arranged is fixedly mounted at one end of the fixed rod 65, the telescopic spring 61 is sleeved on the outer surface of the supporting column 4 in a sliding mode on the left side, one end of the telescopic spring 61 is fixedly connected with the upper surface of the supporting seat 1, the sliding plate 62 is fixedly mounted at the other end of the telescopic spring, the sliding plate 62 is in sliding connection with the supporting column 4, the connecting block 69 is fixedly connected with the driving rack 63 which is vertically arranged at one end of the connecting block 69, the driving rack 63 can move under the pushing of the lifting plate 5, the driving rack 63 and the driven rack 66 are respectively located on two sides of the transmission gear 68 and are in meshed transmission with the transmission gear 68, and when the transmission gear 68 rotates, the moving direction of the driving rack 63 and the driven rack 66 is opposite. The transmission gear 68 is fixedly connected with a rotating rod 67, and the rotating rod 67 is rotationally connected with the side wall of the lower die 2.
In the above structure, when the lifting plate 5 moves downwards, the lower surface of the lifting plate 5 extrudes one end of the driving rack 63, at this time, the driving rack 63 drives the sliding plate 62 to slide on the outer surface of the supporting column 4 through the connecting block 69, the telescopic spring 61 is in a compressed state at this time, the driving gear 68 is driven to rotate relative to the lower die 2 along with the movement of the driving rack 63, the driving gear 68 drives the driven rack 66 to move upwards, the driven rack 66 drives the shovel frame 64 to move upwards through the fixing rod 65, and the shovel frame 64 seals a joint between the lower die 2 and the upper die 9. In addition, during the process of moving up the lifting plate 5, the lifting plate 5 loses the extrusion to the driving rack 63, and the driving rack 63 is restored to the original position by the sliding plate 62 under the action of the telescopic spring 61, so that the shovel frame 64 is lowered under the action of the transmission gear 68.
As shown in fig. 1, 2 and 4, the screw column 87 is connected with the vibration assembly 7, the vibration assembly 7 includes a hollow fixed box 71, the fixed box 71 is fixedly mounted on the upper surface of the supporting seat 1, a connecting spring 72 is disposed in the fixed box 71, one end of the connecting spring 72 is fixedly connected with the inner wall of the fixed box 71, a fixed ring 73 is fixedly mounted at the other end of the connecting spring, a striking rod 74 sequentially penetrates through the connecting spring 72 and the fixed ring 73, the striking rod 74 is fixedly connected with the fixed ring 73, two ends of the striking rod 74 respectively penetrate through the outer part extending to the fixed box 71 and are slidably connected with the fixed box 71, one end of the striking rod 74 contacts with the side wall of the lower die 2, and the other end of the striking rod 74 is driven by the reciprocating driving mechanism.
The reciprocating driving mechanism comprises a cam 77, two mounting plates 75 are fixedly arranged at the end part of the striking rod 74, a roller 76 is rotatably arranged between the two mounting plates 75 through a rotating shaft, the outer surface of the cam 77 is contacted with the outer surface of the roller 76, and the cam 77 is fixedly connected with a threaded column 87.
In the above structure, when the lifting plate 5 moves up, the screw column 87 rotates under the action of screw thread, so as to drive the cam 77 to rotate, and then the impact rod 74 moves back and forth under the action of the connecting spring 72 under the action of the roller 76, so as to impact the lower die 2, and further the impeller finished product is loosened in the forming groove 3, so that the demoulding is convenient.
The two ends of the sealing frame 64 are respectively provided with a through groove, which is convenient for setting and installing the vibration component 7 and the transmission gear 68.
The working principle of the invention is as follows: under the limit of the support column 4, the lifting power mechanism 14 drives the lifting plate 5 to move downwards, so that the upper die 9 and the forming block 10 are driven to move downwards synchronously, and the air extraction assembly 8 performs air extraction action in the process of moving downwards the lifting plate 5, so that air in the cavity is reduced. At the same time, the closing frame 64 is moved upward to close the outer surfaces of the molds so that a closed cavity is formed between the two molds. After a certain time, the aluminum water is injected, the aluminum water is molded, the lifting plate 5 moves upwards, and in the upward moving process, the gas in the piston cylinder 81 is blown into the molding groove 3, so that the molded impeller is cooled. Meanwhile, the vibration component 7 impacts the lower die 2, so that the impeller is loosened in the forming groove 3, and the demolding is facilitated.
Claims (5)
1. The utility model provides a mould is used in casting of mining fan impeller, includes supporting seat (1), the upper surface fixed mounting of supporting seat (1) has bed die (2) and four support columns (4), shaping groove (3) have been seted up to the upper surface of bed die (2), the surface slidable mounting of support column (4) has lifter plate (5), the lower surface fixed mounting of lifter plate (5) has bed die (9), the lower surface fixedly connected with shaping piece (10) of bed die (9), its characterized in that: the upper surface of lifter plate (5) is provided with annotates material mouth (11), annotates material mouth (11) and runs through lifter plate (5), go up mould (9) and shaping piece (10) in proper order, annotates material mouth (11) and is connected with annotates hopper (12), annotate the main part of hopper (12) and be cavity spheroid structure, its upper portion is connected with toper import (122), annotate the inside fixedly connected with filter screen (123) of hopper (12), filter screen (123) horizontal installation is in annotating the spheroidal middle part of hopper (12), filter screen (123) upper portion is provided with except that bubble mechanism, except that bubble mechanism includes arc shell (125), and arc shell (125) sliding connection has two except that bubble depression bar (124), is connected through spring (127) between two except that bubble depression bar (124) to the lower part of two except that bubble depression bar (124) all with middle depression bar (128) sliding connection, the outside fixedly connected with thrust bar (126) of arc shell (125), the one end of thrust bar (126) is run through behind the lateral wall of annotate hopper (12) and is except that bubble mechanism (121) outside; the lifting device is characterized in that an air extraction assembly (8) is arranged on the upper surface of the lifting plate (5), the air extraction assembly (8) comprises a piston cylinder (81), the piston cylinder (81) is fixedly arranged on the upper surface of the lifting plate (5), a connecting pipe (82) is installed at one end of the piston cylinder (81) in a communicating mode, the connecting pipe (82) is connected with an air extraction pipeline (13), the air extraction pipeline (13) is an L-shaped pipeline and sequentially penetrates through the lifting plate (5), an upper die (9) and a forming block (10), a piston (83) is slidably installed inside the piston cylinder (81), a threaded cylinder (84) is fixedly installed on the piston (83), one end of the threaded cylinder (84) extends to the outer portion of the piston cylinder (81) to be in threaded connection with a threaded rod (85), and the threaded rod (85) rotates under the driving of a driving mechanism;
the forming block (10) is provided with an end groove (131), the end groove (131) is arranged at the junction of the forming block (10) and the air exhaust pipeline (13), a plugging block (132) is arranged in the end groove (131) in a sliding mode, the plugging block (132) can plug the end groove (131) and is flush with the side wall of the forming block (10), the plugging block (132) is connected with a plugging driving mechanism (133), and the plugging driving mechanism (133) is fixedly arranged in the upper die (9);
the driving mechanism comprises a worm wheel (86), the worm wheel (86) is fixedly arranged on the outer surface of the threaded rod (85), the lifting plate (5) is in threaded connection with a threaded column (87), the top end of the threaded column (87) is provided with a worm (88), the worm (88) is in meshed transmission with the worm wheel (86), and the bottom end of the threaded column (87) is in rotary connection with the supporting seat (1);
the upper surface of the supporting seat (1) is provided with a sealing assembly (6), the sealing assembly (6) comprises a sealing frame (64), the sealing frame (64) is of a frame body structure and is arranged around the outer surface of the lower die (2) for a circle, the sealing frame (64) can move up and down and can shield and seal a joint surface when the upper die (9) and the lower die (2) are combined;
the utility model provides a vibration assembly (7) is connected with to screw post (87), vibration assembly (7) are including hollow fixed box (71), fixed box (71) fixed mounting is at the upper surface of supporting seat (1), the inside of fixed box (71) is provided with connecting spring (72), connecting spring (72) one end and fixed box (71) inner wall fixed connection, and the other end fixed mounting has solid fixed ring (73), and striking rod (74) run through connecting spring (72) and solid fixed ring (73) setting in proper order to striking rod (74) and solid fixed ring (73) fixed connection, the both ends of striking rod (74) run through respectively and extend to the outside of fixed box (71) and with fixed box (71) sliding connection, the one end of striking rod (74) is contacted with the lateral wall of bed die (2), and the other end receives reciprocating drive mechanism's drive.
2. The die for casting the mining fan impeller according to claim 1, wherein a fixed rod (65) is fixedly installed on the side wall of the sealing frame (64), one end of the fixed rod (65) is fixedly installed with a driven rack (66) which is vertically arranged, the outer surface of the supporting column (4) on the left is slidably sleeved with a telescopic spring (61), one end of the telescopic spring (61) is fixedly connected with the upper surface of the supporting seat (1), the other end of the telescopic spring is fixedly provided with a sliding plate (62), the sliding plate (62) is slidably connected with the supporting column (4), the sliding plate (62) is fixedly connected with a connecting block (69), one end of the connecting block (69) is fixedly connected with a driving rack (63) which is vertically arranged, the driving rack (63) can move under the pushing of the lifting plate (5), the driving rack (63) and the driven rack (66) are respectively positioned on two sides of the driving gear (68) and are in meshed transmission with the driving gear (68), the driving gear (68) is fixedly connected with a rotating rod (67), and the rotating rod (67) is fixedly connected with the side wall of the lower die (2).
3. The die for casting the mining fan impeller according to claim 2, wherein the reciprocating driving mechanism comprises a cam (77), two mounting plates (75) are fixedly mounted at the end parts of the impact rods (74), a roller (76) is rotatably mounted between the two mounting plates (75) through a rotating shaft, the outer surface of the cam (77) is in contact with the outer surface of the roller (76), and the cam (77) is fixedly connected with the threaded column (87).
4. The die for casting the mining fan impeller according to claim 1, wherein one end of the bubble removal press rod (124) is provided with a spherical end face, a strip-shaped slide block is fixedly connected to the outer surface of the bubble removal press rod (124), a strip-shaped slide groove is formed in the inner wall of the arc-shaped shell (125), and the bubble removal press rod (124) is in sliding connection with the arc-shaped shell (125) through the cooperation of the strip-shaped slide block and the strip-shaped slide groove.
5. The die for casting the mining fan impeller according to claim 1, wherein a lifting power mechanism (14) is fixedly arranged on the upper surface of the supporting seat (1), and the upper end of the lifting power mechanism (14) is connected with the lifting plate (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311209594.2A CN116921632B (en) | 2023-09-19 | 2023-09-19 | Die for casting impeller of mining fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311209594.2A CN116921632B (en) | 2023-09-19 | 2023-09-19 | Die for casting impeller of mining fan |
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| CN116921632B true CN116921632B (en) | 2024-01-16 |
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| CN117961007B (en) * | 2024-04-01 | 2024-06-14 | 厦门市浩业联卫浴有限公司 | Faucet casting molding equipment and molding method thereof |
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| CN116921632A (en) | 2023-10-24 |
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