CN116652111A - Water meter metal shell casting forming device and method - Google Patents
Water meter metal shell casting forming device and method Download PDFInfo
- Publication number
- CN116652111A CN116652111A CN202310899222.0A CN202310899222A CN116652111A CN 116652111 A CN116652111 A CN 116652111A CN 202310899222 A CN202310899222 A CN 202310899222A CN 116652111 A CN116652111 A CN 116652111A
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- centrifugal
- pipe
- molten liquid
- melt
- water meter
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- 238000005266 casting Methods 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 38
- 239000002184 metal Substances 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 239000000155 melt Substances 0.000 claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- 238000000926 separation method Methods 0.000 claims abstract description 36
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims description 31
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 21
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 13
- 239000011229 interlayer Substances 0.000 claims description 13
- 238000000889 atomisation Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000000306 component Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 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
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/067—Venting means for moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a water meter metal shell casting forming device and a method, which belong to the technical field of casting and comprise an upper die holder, wherein a melt injection opening is formed in the top of the upper die holder, a melt injection assembly is sleeved in the melt injection opening, the melt injection assembly comprises a conical barrel, a separation barrel and a melt introduction pipe, and the melt introduction pipe is communicated with the outer wall of the conical barrel in a tangential direction. According to the invention, the rotating air flows out from the liquid outlet at the bottom of the conical cylinder, and contracts in the conical cylinder and the separating cylinder to flow towards the center, so that secondary vortex is formed upwards and flows to the tail gas purifying pipe through the tail gas discharging pipe, the molten liquid for casting the water meter is firstly exhausted before being poured into the die cavity formed by buckling the upper die holder and the lower die holder, the content of the gas in the molten liquid is reduced, the porosity in the cast product of the water meter is reduced, the quality of the water meter can be improved, and the gas emitted by the molten liquid after entering the die cavity can flow upwards through the liquid outlet at the bottom of the conical cylinder.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to a water meter metal shell casting forming device and method.
Background
The casting is a technological process of smelting metal into liquid meeting certain requirements and pouring the liquid into casting mould, and solidifying and cleaning to obtain the casting with preset shape, size and performance.
The prior art discloses an invention patent in the technical field of partial casting, wherein Chinese patent CN109047721B discloses a low-pressure casting die for a vehicle box body, which comprises an upper die, a lower die, a side die assembly and a sand core assembly casting cavity, wherein the sand core assembly is fixed on the lower die through a positioning base, a split hole communicated with the casting cavity is arranged on the positioning base, and an exhaust channel is arranged on the upper die; the sand core components are communicated with each other and the main sand core is hollowed out; and the upper die is provided with an overflow system communicated with the casting cavity. By implementing the technical scheme, the balanced exhaust in the casting process of the box body can be realized, the gas in the casting cavity is rapidly exhausted, the defects of casting air holes, undercasting or unclear contour and the like of the formed box body are avoided, the product qualification rate reaches more than 99.9%, and the quality product rate of the formed casting is effectively improved.
In the prior art, the metal shell casting molding technology still has some defects in the application process, the flow speed of the melt is too high, and the melt directly collides with the lowest point in the mold molding cavity, so that a large number of bubbles are easy to generate, the porosity in the metal shell of the finished water meter is higher, the condition of uneven flow is easy to occur in the melt flow process, and particularly, if the corners are more, the bad phenomenon of shrinkage cavity or loosening can occur in the corners.
Based on the above, the invention designs a water meter metal shell casting device and a method thereof to solve the above problems.
Disclosure of Invention
The invention aims at: in order to solve the problems that the metal shell casting and forming technology in the prior art still has some defects in the application process, the flow speed of the melt is too high, and the melt directly collides with the lowest point in the die forming cavity, so that a large amount of bubbles are easy to generate, the porosity in the metal shell of the finished water meter is higher, the condition of uneven flow is easy to occur in the melt flow process, and particularly, if corners are more, shrinkage cavity or loose bad phenomena can occur at corners, the device and the method for casting and forming the metal shell of the water meter are provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a water gauge metal casing casting forming device, includes the upper die base, the top of upper die base has seted up the melt filling opening, the interior molten injection subassembly that has cup jointed of melt filling opening, the molten injection subassembly includes toper section of thick bamboo, separating drum and melt introduction pipe, the melt introduction pipe is put through on toper section of thick bamboo outer wall along tangential;
the lower die holder is arranged below the upper die holder, a melt centrifugal port is formed in the bottom of the lower die holder and corresponds to the position of the melt injection port, a melt centrifugal assembly is sleeved in the melt centrifugal port, and the melt centrifugal assembly comprises centrifugal blades, and the pressure and the centrifugal force generated by rotation of the centrifugal blades enable the melt to be filled in a die cavity rapidly.
As a further description of the above technical solution:
the melt injection assembly comprises a melt injection pipe, the melt injection pipe is sleeved in a melt injection opening, a conical barrel is connected in an embedded mode in an upper port of the melt injection pipe, and a separation barrel is connected to the conical barrel.
As a further description of the above technical solution:
and the inside of the separating cylinder is rotatably connected with a guide blade at a position corresponding to the melt liquid introducing pipe and is used for guiding the melt liquid introduced by the melt liquid introducing pipe.
As a further description of the above technical solution:
the conical cylinder is sleeved with an inner bushing, and the inner bushing is sleeved in the molten liquid injection pipe and is used for filling the gap between the conical cylinder and the molten liquid injection pipe.
As a further description of the above technical solution:
the tail gas purification assembly comprises a tail gas discharge pipe, the tail gas discharge pipe is connected to the separating cylinder in a lower mode, a wheel disc is connected to the tail gas discharge pipe in an embedded mode, a transmission shaft is connected to the lower portion of the wheel disc, and the other end of the transmission shaft is connected to the axis of the guide vane.
As a further description of the above technical solution:
the rotary connecting device is characterized in that a switching shaft is connected to the position, deviating from the axis, of the wheel disc, a first rocker is rotatably connected to the switching shaft, a driving shaft is rotatably connected to the other end of the first rocker, a first sliding connecting sleeve is sleeved on the driving shaft, and the first sliding connecting sleeve is clamped on the outer wall of the tail gas exhaust pipe.
As a further description of the above technical solution:
the switching shaft is further rotationally connected with a second rocker, the other end of the second rocker is rotationally connected with a piston rod, the other end of the piston rod is connected with a piston disc, a piston tank is sleeved outside the piston disc, the tank outer wall of the piston tank is connected with a supporting frame, and the other end of the supporting frame is connected to a separating cylinder.
As a further description of the above technical solution:
the tail gas exhaust pipe is communicated with a tail gas purifying pipe, and an interlayer is arranged in the pipe wall of the tail gas purifying pipe;
an atomization spray hole is arranged in the upper pipe orifice of the tail gas purifying pipe.
As a further description of the above technical solution:
the molten liquid centrifugal assembly comprises a centrifugal barrel, the centrifugal barrel is sleeved in a molten liquid centrifugal port, a centrifugal disc is rotationally connected to an upper barrel port of the centrifugal barrel, a connecting port is formed in the centrifugal disc, and centrifugal blades are connected in the connecting port in an embedded mode;
the centrifugal blade is connected with a centrifugal shaft below, an electric motor is installed below the centrifugal shaft, and the electric motor body is installed on the hydraulic lifting equipment.
A water meter metal housing casting molding method, the water meter metal housing casting molding method comprising the steps of:
mounting a drive device at an end of the drive shaft;
after the upper die holder and the lower die holder are completely buckled, controlling the driving equipment to operate, applying reciprocating pushing force and pulling force to the driving shaft by the output shaft of the driving equipment, and under the combined action of the reciprocating pushing force and the pulling force, enabling the driving shaft to do corresponding sliding motion in the first sliding connecting sleeve, wherein in the process, the driving shaft drives the wheel disc to rotate through the first rocker, the wheel disc rotates to drive the transmission shaft to rotate, and the transmission shaft drives the guide vane to rotate;
after the rotation speed of the guide blades tends to be stable, pouring the molten liquid for casting into the molten liquid introducing pipe in a high-pressure mode, enabling the molten liquid to enter the internal rotation separation area of the separation barrel through the molten liquid introducing pipe, enabling the molten liquid containing impurities to enter the separation barrel in the axial direction, enabling the molten liquid to strongly rotate under the guide action of the guide blades, enabling air flow to spirally enter the conical barrel downwards along the conical barrel, enabling the molten liquid with high density to be thrown to the inner walls of the conical barrel and the separation barrel under the action of centrifugal force, enabling the molten liquid to fall and flow out along the inner walls of the conical barrel under the action of gravity, enabling the rotating air flow to flow out from a liquid outlet at the bottom of the conical barrel, enabling the air flow to shrink towards the center in the conical barrel and upwards to form secondary vortex and flow to the tail gas purifying pipe through the tail gas discharging pipe, and enabling the molten liquid for casting of the water meter to be discharged before being poured into a die cavity formed by buckling of an upper die holder and a lower die holder;
the method comprises the steps that in the rotating process of a wheel disc, the wheel disc drives an adapter shaft to do centrifugal motion, the adapter shaft drives a piston rod to do reciprocating telescopic motion in a second sliding connecting sleeve, in the process, when the piston rod pulls a piston disc to be far away from a piston tank, the piston tank extracts sodium sulfide solution through an external one-way valve pipe, when the piston rod pushes the piston disc to be compressed to the depth of the piston tank, the piston tank injects the sodium sulfide solution into an interlayer of a tail gas purifying pipe through the external one-way valve pipe, and the sodium sulfide solution entering the interlayer is sprayed out through an atomization spray hole;
before molten liquid is injected into a die cavity, the hydraulic lifting device is controlled to push the electric motor to lift upwards, the output shaft of the electric motor pushes the centrifugal blades to enter the centrifugal barrel through the centrifugal shaft, then the electric motor is controlled to operate, the output shaft of the electric motor drives the centrifugal shaft to rotate, the centrifugal shaft drives the centrifugal blades to rotate, and the centrifugal blades can also drive the centrifugal disc to rotate in the rotating process.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, after the rotation speed of the guide blades tends to be stable, the molten liquid is poured into the molten liquid introducing pipe in a high-pressure mode to produce casting molten liquid, the molten liquid enters the internal rotation separation area in the separation barrel through the molten liquid introducing pipe, after the molten liquid containing impurities enters the separation barrel along the axial direction, the molten liquid is subjected to the guide action of the guide blades to generate strong rotation, the air flow downwards enters the conical barrel in a spiral shape along the conical barrel, the molten liquid with high density is thrown to the conical barrel and the barrel inner wall of the separation barrel under the action of centrifugal force, and falls and flows out along the inner wall of the conical barrel under the action of gravity, flows out from the liquid outlet at the bottom of the conical barrel, the rotating air flow contracts and flows towards the center in the conical barrel, secondary vortex is formed upwards and flows to the tail gas purifying pipe through the tail gas discharging pipe, and before the molten liquid for casting water meter enters the die cavity formed by buckling of the upper die holder and the lower die holder, the air content in the molten liquid in the water meter casting is reduced, the air content in the water meter casting product is reduced, the air porosity in the water meter can be improved, the air flow can flow upwards through the liquid outlet at the bottom of the conical barrel.
2. In the process that the wheel disc rotates, the wheel disc drives the transfer shaft to do centrifugal motion, the transfer shaft drives the piston rod to do reciprocating telescopic motion in the second sliding connecting sleeve, in the process, when the piston rod pulls the piston disc to be far away from the piston tank, the piston tank extracts the sodium sulfide solution through the first external check valve pipe, when the piston rod pushes the piston disc to compress to the depth of the piston tank, the piston tank injects the sodium sulfide solution into the interlayer of the tail gas purifying pipe through the second external check valve pipe, the sodium sulfide solution entering the interlayer is sprayed out through the atomization spray hole, and the sprayed atomized sodium sulfide solution and the filter layer filled in the tail gas purifying pipe are matched to absorb sulfide substances released by the melt, so that the casting tail gas purifying effect of the water meter is achieved.
3. In the invention, before molten liquid is injected into a die cavity, the hydraulic lifting device is controlled to push the electric motor to lift upwards, the output shaft of the electric motor pushes the centrifugal blade to enter the centrifugal barrel through the centrifugal shaft, then the electric motor is controlled to operate, the output shaft of the electric motor drives the centrifugal shaft to rotate, the centrifugal shaft drives the centrifugal blade to rotate, and the centrifugal blade also drives the centrifugal disc to rotate in the rotating process, so that the molten liquid slowly flows out of the cavity bottom of the die cavity, the molten liquid is prevented from directly colliding with one position point in the cavity bottom of the die cavity in a vertical downward flowing manner, air holes are prevented from being formed in a casting, the molten liquid can quickly fill edges under the action of pressure and centrifugal force, the molten liquid can fully flow into parts with more corners and small structures, shrinkage or loose phenomena are avoided, the casting quality is improved, the practicability is strong, and the casting is worth popularizing.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a water meter metal housing casting device and method according to the present invention;
FIG. 2 is a schematic view of a metal casing casting device and method for a water meter according to another aspect of the present invention;
FIG. 3 is a schematic view of a molten metal injection assembly in a device and method for casting a metal housing of a water meter according to the present invention;
FIG. 4 is a schematic diagram of a device and a method for casting a metal casing of a water meter according to the present invention, wherein the molten metal is split;
fig. 5 is a schematic structural diagram of a water meter metal casing casting device and method according to the present invention in a split state of a tail gas purifying component;
FIG. 6 is a schematic diagram of a molten Li Xin component in a water meter metal shell casting device and method according to the present invention;
FIG. 7 is a schematic diagram of a metal casing casting device and method for a water meter according to the present invention, in which the molten metal centrifugal component is separated;
fig. 8 is a schematic structural diagram of a piston disc in a device and a method for casting a metal casing of a water meter according to the present invention.
Legend description:
1. an upper die holder; 2. a lower die holder; 3. a melt injection assembly; 301. a melt injection tube; 302. a conical cylinder; 303. an inner liner; 304. a separation cylinder; 305. a guide vane; 306. a melt introduction tube; 4. an exhaust gas purifying component; 401. a tail gas discharge pipe; 402. a wheel disc; 403. a first rocker; 404. a drive shaft; 405. a second rocker; 406. a piston rod; 407. a piston can; 408. a piston disc; 409. a tail gas purifying pipe; 410. a support frame; 5. a melt centrifuge assembly; 501. a centrifugal barrel; 502. a centrifugal disc; 503. a coupling port; 504. centrifugal blades; 505. a mandrel is detached; 506. an electric motor.
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. 1-8, the present invention provides a technical solution: the utility model provides a water gauge metal casing casting forming device, includes upper die holder 1, and the top of upper die holder 1 has seted up the melt filling opening, has cup jointed melt injection subassembly 3 in the melt filling opening, and melt injection subassembly 3 includes cone 302, separating tube 304 and melt introduction pipe 306, and melt introduction pipe 306 is put through on cone 302 section of thick bamboo outer wall along tangential;
the lower die holder 2 is arranged below the upper die holder 1, a melt centrifugal port is formed in the bottom of the lower die holder 2 and corresponds to the position of the melt injection port, a melt centrifugal assembly 5 is sleeved in the melt centrifugal port, the melt centrifugal assembly 5 comprises centrifugal blades 504, and the pressure and the centrifugal force generated by rotation of the centrifugal blades 504 enable the melt to be filled in the die cavity rapidly.
Specifically, the melt injection assembly 3 includes a melt injection pipe 301, the melt injection pipe 301 is sleeved in the melt injection port, a conical barrel 302 is connected in an embedded manner in an upper port of the melt injection pipe 301, a separation barrel 304 is connected to the conical barrel 302, a guide vane 305 is connected in the separation barrel 304 in a rotating manner at a position corresponding to a melt introduction pipe 306, and is used for guiding the melt introduced through the melt introduction pipe 306, an inner bushing 303 is sleeved outside the conical barrel 302, and the inner bushing 303 is sleeved in the melt injection pipe 301, so as to fill a gap between the conical barrel 302 and the melt injection pipe 301.
The implementation mode specifically comprises the following steps: after the rotation speed of the guide vane 305 tends to be stable, pouring the molten liquid for water meter production casting into the molten liquid introducing pipe 306 in a high-pressure mode, enabling the molten liquid to enter the internal air separation area in the separation barrel 304 through the molten liquid introducing pipe 306, enabling the molten liquid containing impurities to flow into the separation barrel 304 in the axial direction, enabling the molten liquid to rotate strongly under the guide effect of the guide vane 305, enabling air flow to enter the conical barrel 302 downwards in a spiral mode along the conical barrel 302, enabling the molten liquid with high density to be thrown to the inner walls of the conical barrel 302 and the separation barrel 304 under the centrifugal force effect, enabling the molten liquid to fall and flow out along the inner walls of the conical barrel 302 under the gravity effect, enabling the air flow with the rotation to shrink and flow towards the center in the conical barrel 302 and the separation barrel 304, enabling the air flow with the rotation to form secondary vortex upwards to flow into the tail gas purification pipe 409 through the tail gas exhaust pipe 401, enabling the molten liquid for water meter casting to be exhausted before being poured into a die cavity formed by the buckling of the upper die holder 1 and the lower die holder 2, and being beneficial to reduce the inner porosity of the water meter casting.
Specifically, the tail gas purifying component 4 includes a tail gas discharging pipe 401, the tail gas discharging pipe 401 is connected to the separating tube 304 in a lower way, a wheel disc 402 is connected to the tail gas discharging pipe 401 in an embedded way, a transmission shaft is connected to the lower part of the wheel disc 402, the other end of the transmission shaft is connected to an axis line of the guide vane 305, a switching shaft is connected to a position of the wheel disc 402 deviating from the axis, a first rocker 403 is rotationally connected to the switching shaft, a driving shaft 404 is rotationally connected to the other end of the first rocker 403, a first sliding connecting sleeve is sleeved on the driving shaft 404, the first sliding connecting sleeve is clamped on the outer wall of the tail gas discharging pipe 401, a second rocker 405 is rotationally connected to the switching shaft, the other end of the second rocker 405 is rotationally connected to a piston rod 406, the other end of the piston rod 406 is connected to a piston disc 408, a piston tank 407 is sleeved outside the piston disc 408, the outer wall of the piston tank 407 is connected to a supporting frame 410, the other end of the supporting frame 410 is connected to the separating tube 304, a tail gas purifying pipe 409 is connected to the tail gas discharging pipe 401, and a pipe wall of the tail gas purifying pipe 409 is internally provided with an interlayer;
an atomization spray hole is arranged in the upper pipe orifice of the tail gas purifying pipe 409.
The implementation mode specifically comprises the following steps: the rim plate 402 is in pivoted in-process, the rim plate 402 drives the adapter shaft and carries out centrifugal motion, the adapter shaft drives piston rod 406 and carries out reciprocating type telescopic motion in No. two sliding adapter sleeves, in this process, when piston rod 406 pulling piston disc 408 is to the direction of keeping away from piston jar 407, piston jar 407 draws the disodium sulfide solution through external check valve pipe No. one, when piston rod 406 promotes piston disc 408 to the compression of piston jar 407 depths, piston jar 407 pours the disodium sulfide solution into the intermediate layer of tail gas clean-up pipe 409 through external No. two check valve pipe, the disodium sulfide solution in the entering intermediate layer is through atomizing orifice blowout, the atomizing form disodium sulfide solution of blowout absorbs the sulphide material that the melt released with the filter layer cooperation that tail gas clean-up pipe 409 is inside filled, play water gauge casting tail gas clean-up effect.
Specifically, the melt centrifuging assembly 5 comprises a centrifuging barrel 501, wherein the centrifuging barrel 501 is sleeved in a melt centrifuging port, a centrifuging disc 502 is rotatably connected to an upper barrel port of the centrifuging barrel 501, a connecting port 503 is formed in the centrifuging disc 502, and centrifuging blades 504 are connected in the connecting port 503 in an embedded manner;
a centrifugal shaft 505 is connected below the centrifugal blades 504, an electric motor 506 is installed below the centrifugal shaft 505, and a body of the electric motor 506 is installed on the hydraulic lifting device.
The implementation mode specifically comprises the following steps: before molten liquid is injected into a die cavity, the hydraulic lifting device is controlled to push the electric motor 506 to lift upwards, the output shaft of the electric motor 506 pushes the centrifugal blade 504 to enter the centrifugal barrel 501 through the centrifugal shaft 505, then the electric motor 506 is controlled to operate, the output shaft of the electric motor 506 drives the centrifugal shaft 505 to rotate, the centrifugal shaft 505 drives the centrifugal blade 504 to rotate, and the centrifugal blade 504 also drives the centrifugal disc 502 to rotate in the rotating process, so that the molten liquid slowly flows out from the cavity bottom of the die cavity, the molten liquid is prevented from directly colliding with one position point in the cavity bottom of the die cavity in an up-down downward flowing manner, air holes are prevented from occurring in the casting, and the molten liquid can be rapidly filled with edges under the action of pressure and centrifugal force.
A water meter metal shell casting forming method comprises the following steps:
mounting a drive device at an end of the drive shaft 404;
after the upper die holder 1 and the lower die holder 2 are completely buckled, controlling a driving device to operate, wherein an output shaft of the driving device applies reciprocating pushing force and pulling force to a driving shaft 404, under the combined action of the reciprocating pushing force and the pulling force, the driving shaft 404 performs corresponding sliding motion in a first sliding connecting sleeve, in the process, the driving shaft 404 drives a wheel disc 402 to rotate through a first rocker 403, the wheel disc 402 rotates to drive a transmission shaft to rotate, and the transmission shaft drives a guide vane 305 to rotate;
after the rotation speed of the guide vane 305 tends to be stable, pouring the molten liquid for water meter production casting into the molten liquid introducing pipe 306 in a high-pressure mode, enabling the molten liquid to enter a rotational separation area in the separation cylinder 304 through the molten liquid introducing pipe 306, enabling the molten liquid containing impurities to flow into the separation cylinder 304 in the axial direction, enabling the molten liquid to rotate strongly under the guide effect of the guide vane 305, enabling air flow to enter the conical cylinder 302 downwards in a spiral mode along the conical cylinder 302, enabling the molten liquid with high density to be thrown to the inner walls of the conical cylinder 302 and the separation cylinder 304 under the centrifugal force effect, enabling the molten liquid to fall and flow out along the inner walls of the conical cylinder 302 under the gravity effect, enabling the air flow with rotation to shrink and flow towards the center in the conical cylinder 302 and the separation cylinder 304, enabling the molten liquid for water meter casting to form secondary vortex upwards, enabling the air flow to flow into the tail gas purification pipe 409 through the tail gas exhaust pipe 401, and exhausting the molten liquid for water meter casting before being poured into a die cavity formed by buckling of the upper die holder 1 and the lower die holder 2;
in the rotating process of the wheel disc 402, the wheel disc 402 drives the switching shaft to perform centrifugal motion, the switching shaft drives the piston rod 406 to perform reciprocating telescopic motion in the second sliding connecting sleeve, in the process, when the piston rod 406 pulls the piston disc 408 to be far away from the piston tank 407, the piston tank 407 extracts the sodium sulfide solution through the first external check valve pipe, when the piston rod 406 pushes the piston disc 408 to compress to the depth of the piston tank 407, the piston tank 407 injects the sodium sulfide solution into the interlayer of the tail gas purifying pipe 409 through the second external check valve pipe, and the sodium sulfide solution entering the interlayer is sprayed out through the atomization spray hole;
before molten liquid is injected into the mold cavity, the hydraulic lifting device is controlled to push the electric motor 506 to lift upwards, the output shaft of the electric motor 506 pushes the centrifugal blades 504 into the centrifugal barrel 501 through the centrifugal shaft 505, then the electric motor 506 is controlled to operate, the output shaft of the electric motor 506 drives the centrifugal shaft 505 to rotate, the centrifugal shaft 505 drives the centrifugal blades 504 to rotate, and the centrifugal blades 504 also drive the centrifugal disc 502 to rotate in the rotating process.
Working principle, when in use:
mounting a drive device at an end of the drive shaft 404;
after the upper die holder 1 and the lower die holder 2 are completely buckled, controlling a driving device to operate, wherein an output shaft of the driving device applies reciprocating pushing force and pulling force to a driving shaft 404, under the combined action of the reciprocating pushing force and the pulling force, the driving shaft 404 performs corresponding sliding motion in a first sliding connecting sleeve, in the process, the driving shaft 404 drives a wheel disc 402 to rotate through a first rocker 403, the wheel disc 402 rotates to drive a transmission shaft to rotate, and the transmission shaft drives a guide vane 305 to rotate;
after the rotation speed of the guide vane 305 tends to be stable, pouring the molten liquid for water meter production casting into the molten liquid introducing pipe 306 in a high-pressure mode, enabling the molten liquid to enter a rotational separation area in the separation cylinder 304 through the molten liquid introducing pipe 306, enabling the molten liquid containing impurities to flow into the separation cylinder 304 in the axial direction, enabling the molten liquid to strongly rotate under the guide effect of the guide vane 305, enabling air flow to spirally enter the conical cylinder 302 downwards along the conical cylinder 302, enabling the molten liquid with high density to be thrown to the inner walls of the conical cylinder 302 and the separation cylinder 304 under the centrifugal force effect, enabling the molten liquid to fall and flow out along the inner walls of the conical cylinder 302 under the gravity effect, enabling the air flow to flow out from a liquid outlet at the bottom of the conical cylinder 302 in a shrinking mode, enabling the rotating air flow to flow in the conical cylinder 302 and the separation cylinder 304 in a central mode, enabling the air flow upwards to form a secondary vortex to flow into the tail gas purification pipe 409 through the tail gas exhaust pipe 401, enabling the molten liquid for water meter casting to be exhausted before being poured into a die cavity formed by the upper die holder 1 and the lower die holder 2, and reducing the content of gas in the molten liquid to be spirally and beneficial to reduce the porosity in the water meter casting;
in the rotating process of the wheel disc 402, the wheel disc 402 drives the switching shaft to perform centrifugal motion, the switching shaft drives the piston rod 406 to perform reciprocating telescopic motion in the second sliding connecting sleeve, in the process, when the piston rod 406 pulls the piston disc 408 to be far away from the piston tank 407, the piston tank 407 extracts the sodium sulfide solution through the first external check valve pipe, when the piston rod 406 pushes the piston disc 408 to compress to the depth of the piston tank 407, the piston tank 407 injects the sodium sulfide solution into the interlayer of the tail gas purifying pipe 409 through the second external check valve pipe, the sodium sulfide solution entering the interlayer is sprayed out through the atomization spray hole, and the sprayed atomized sodium sulfide solution and the filter layer filled in the tail gas purifying pipe 409 are matched to absorb sulfide substances released by the melt, so that the tail gas purifying effect of water meter casting is achieved;
before molten liquid is injected into a die cavity, hydraulic lifting equipment is controlled to push an electric motor 506 to lift upwards, an output shaft of the electric motor 506 pushes a centrifugal blade 504 to enter a centrifugal barrel 501 through a centrifugal shaft 505, then the electric motor 506 is controlled to operate, the output shaft of the electric motor 506 drives the centrifugal shaft 505 to rotate, the centrifugal shaft 505 drives the centrifugal blade 504 to rotate, and the centrifugal blade 504 also drives a centrifugal disc 502 to rotate in the rotating process, so that the molten liquid slowly flows out of the cavity bottom of the die cavity, the molten liquid is prevented from directly colliding with one position point in the cavity bottom of the die cavity in a vertical downward flowing manner, air holes are prevented from being formed in a casting, the molten liquid can be quickly filled with edges under the action of pressure and centrifugal force, the molten liquid can fully flow into parts with more corners and small structures, shrinkage or loose phenomena are avoided, the casting quality is improved, and the molten liquid casting device is high in practicability and is worth popularizing.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (10)
1. The casting and forming device for the metal shell of the water meter comprises an upper die holder (1), and is characterized in that a molten liquid injection opening is formed in the top of the upper die holder (1), a molten liquid injection assembly (3) is sleeved in the molten liquid injection opening, the molten liquid injection assembly (3) comprises a conical barrel (302), a separation barrel (304) and a molten liquid introduction pipe (306), and the molten liquid introduction pipe (306) is connected to the outer wall of the conical barrel (302) in a tangential direction;
the lower die holder (2) is arranged below the upper die holder (1), a melt centrifugal port is formed in the bottom of the lower die holder (2) and corresponds to the position of the melt injection port, a melt centrifugal assembly (5) is sleeved in the melt centrifugal port, the melt centrifugal assembly (5) comprises centrifugal blades (504), and the pressure and the centrifugal force generated by rotation of the centrifugal blades (504) enable the melt to be filled in a die cavity rapidly.
2. The water meter metal shell casting forming device according to claim 1, wherein the melt injection assembly (3) comprises a melt injection pipe (301), the melt injection pipe (301) is sleeved in the melt injection port, a conical barrel (302) is connected in an embedded mode in an upper port of the melt injection pipe (301), and a separation barrel (304) is connected to the conical barrel (302).
3. A water meter metal housing casting apparatus according to claim 2, wherein a guide vane (305) is rotatably connected to the inside of the separation cylinder (304) at a position corresponding to the melt introduction pipe (306) for guiding the melt introduced through the melt introduction pipe (306).
4. A water meter metal casing casting device according to claim 3, wherein the cone (302) is externally sleeved with an inner bushing (303), and the inner bushing (303) is externally sleeved in the melt injection pipe (301) for filling the gap between the cone (302) and the melt injection pipe (301).
5. The water meter metal shell casting forming device according to claim 1, wherein the tail gas purifying component (4) comprises a tail gas discharging pipe (401), the tail gas discharging pipe (401) is connected to the separating cylinder (304) in a lower mode, a wheel disc (402) is connected to the tail gas discharging pipe (401) in an embedded mode, a transmission shaft is connected to the lower portion of the wheel disc (402), and the other end of the transmission shaft is connected to the axis of the guide vane (305).
6. The casting and forming device for the metal shell of the water meter according to claim 2, wherein a switching shaft is connected to a position, deviating from the axis, of the wheel disc (402), a first rocker (403) is rotatably connected to the switching shaft, a driving shaft (404) is rotatably connected to the other end of the first rocker (403), a first sliding connecting sleeve is sleeved on the driving shaft (404), and the first sliding connecting sleeve is clamped on the outer wall of the tail gas discharging pipe (401).
7. The water meter metal shell casting device according to claim 6, wherein the adapter shaft is further rotatably connected with a second rocker (405), the other end of the second rocker (405) is rotatably connected with a piston rod (406), the other end of the piston rod (406) is connected with a piston disc (408), a piston tank (407) is sleeved outside the piston disc (408), a supporting frame (410) is connected to the tank outer wall of the piston tank (407), and the other end of the supporting frame (410) is connected to the separating cylinder (304).
8. The water meter metal shell casting forming device according to claim 7, wherein the tail gas exhaust pipe (401) is connected with a tail gas purifying pipe (409), and a pipe wall of the tail gas purifying pipe (409) is internally provided with an interlayer;
an atomization spray hole is arranged in the upper pipe orifice of the tail gas purifying pipe (409).
9. The casting and forming device for the metal shell of the water meter according to claim 1, wherein the molten liquid centrifugal assembly (5) comprises a centrifugal barrel (501), the centrifugal barrel (501) is sleeved in a molten liquid centrifugal port, a centrifugal disc (502) is rotationally connected to an upper barrel port of the centrifugal barrel (501), a connecting port (503) is formed in the centrifugal disc (502), and centrifugal blades (504) are connected in the connecting port (503) in an embedded mode;
a centrifugal shaft (505) is connected below the centrifugal blades (504), an electric motor (506) is installed below the centrifugal shaft (505), and a body of the electric motor (506) is installed on the hydraulic lifting device.
10. A water meter metal housing casting method according to any one of claims 1 to 9, wherein the water meter metal housing casting method comprises the steps of:
mounting a drive device at an end of a drive shaft (404);
after the upper die holder (1) and the lower die holder (2) are completely buckled, driving equipment is controlled to operate, an output shaft of the driving equipment applies reciprocating pushing force and pulling force to a driving shaft (404), under the combined action of the reciprocating pushing force and the pulling force, the driving shaft (404) performs corresponding sliding motion in a first sliding connecting sleeve, in the process, the driving shaft (404) drives a wheel disc (402) to rotate through a first rocker (403), and the wheel disc (402) rotates to drive a transmission shaft to rotate, and the transmission shaft drives a guide vane (305) to rotate;
after the rotation speed of the guide blades (305) tends to be stable, pouring molten liquid for water meter production casting into a molten liquid introducing pipe (306) in a high-pressure mode, enabling the molten liquid to enter an internal air separation area in a separation cylinder (304) through the molten liquid introducing pipe (306), enabling the molten liquid containing impurities to flow into the separation cylinder (304) in an axial direction, enabling the molten liquid to strongly rotate under the guide effect of the guide blades (305), enabling air flow to spirally downwards enter the conical cylinder (302) along the conical cylinder (302), enabling the molten liquid with high density to be thrown to the inner walls of the conical cylinder (302) and the separation cylinder (304) under the action of centrifugal force, enabling the molten liquid to fall and flow out along the inner walls of the conical cylinder (302) under the action of gravity, enabling the air flow to flow out from a liquid outlet at the bottom of the conical cylinder (302), enabling the rotating air flow to shrink towards the center in the conical cylinder (302) and the separation cylinder (304), enabling the air flow to the tail gas purifying pipe (409) upwards to form secondary vortex, and enabling the molten liquid for water meter to be discharged before being poured into a die cavity formed by buckling of an upper die holder (1) and a lower die holder (2);
in the rotating process of the wheel disc (402), the wheel disc (402) drives the transfer shaft to do centrifugal motion, the transfer shaft drives the piston rod (406) to do reciprocating telescopic motion in the second sliding connecting sleeve, in the process, when the piston rod (406) pulls the piston disc (408) to be far away from the piston tank (407), the piston tank (407) extracts the sodium sulfide solution through the first external check valve pipe, and when the piston rod (406) pushes the piston disc (408) to compress to the depth of the piston tank (407), the piston tank (407) injects the sodium sulfide solution into the interlayer of the tail gas purifying pipe (409) through the second external check valve pipe, and the sodium sulfide solution entering the interlayer is sprayed out through the atomization spray hole;
before molten liquid is injected into a die cavity, the hydraulic lifting device is controlled to push the electric motor (506) to lift upwards, the output shaft of the electric motor (506) pushes the centrifugal blades (504) to enter the centrifugal barrel (501) through the centrifugal shaft (505), then the electric motor (506) is controlled to operate, the output shaft of the electric motor (506) drives the centrifugal shaft (505) to rotate, the centrifugal shaft (505) drives the centrifugal blades (504) to rotate, and the centrifugal blades (504) also drive the centrifugal disc (502) to rotate in the rotating process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310899222.0A CN116652111A (en) | 2023-07-21 | 2023-07-21 | Water meter metal shell casting forming device and method |
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| CN202310899222.0A CN116652111A (en) | 2023-07-21 | 2023-07-21 | Water meter metal shell casting forming device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698029A (en) * | 2024-02-04 | 2024-03-15 | 福建省诚兴体育用品有限公司 | Outsole forming machine |
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2023
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698029A (en) * | 2024-02-04 | 2024-03-15 | 福建省诚兴体育用品有限公司 | Outsole forming machine |
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