CN113560491A - Valve body casting process - Google Patents
Valve body casting process Download PDFInfo
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- CN113560491A CN113560491A CN202110848917.7A CN202110848917A CN113560491A CN 113560491 A CN113560491 A CN 113560491A CN 202110848917 A CN202110848917 A CN 202110848917A CN 113560491 A CN113560491 A CN 113560491A
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- valve body
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/043—Removing the consumable pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
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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
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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
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a valve body casting process, which comprises the following steps: wax pattern manufacturing → wax pattern group tree → shell manufacturing → dewaxing roasting → smelting and pouring → shell removing and dropping piece → grinding sprue → shot blasting and finishing → inspection and flaw detection → finished product warehousing. The valve body is cast by investment casting, so that the size precision of a valve body casting is high, the roughness value of the surface of the valve body is reduced, the main materials of the valve body are CF8M and CF8, the weight of the valve body is reduced, the surface smoothness of the valve body is ensured, meanwhile, the surface quality of a shell is improved by adopting quartz sand on the surface layer of a wax mold, the shell making period of the shell is shortened by adopting water glass coating on the reinforcing layer, the problem of low wet strength of silica sol shell making is solved, the large-batch production of the valve body is facilitated, the consistency of the valve body casting is ensured, and metal raw materials are greatly saved.
Description
Technical Field
The invention relates to the field of valve body production, in particular to a valve body casting process.
Background
The definition of "valve" is the device for controlling the direction, pressure and flow of fluid in a fluid system, and a valve body is a main part in the valve, because the construction of the valve body is relatively special, the casting difficulty of the casting is large, the requirement of high safety is required, and the requirement of the casting quality of the casting of the valve body is very strict.
The existing valve body is cast, sand mold casting is usually adopted, the size precision of a valve casting is poor, the defects of sand washing, sand inclusion, air holes and the like are easily generated, the production efficiency is low, most of the valve body is cast iron materials, the working medium corrosion resistance is relatively limited, the long-term performance of the valve body operation cannot be met, meanwhile, the existing valve body casting device does not have a mechanism for quickly melting metal raw materials and putting the metal raw materials into the mechanism, and the mechanism for shelling the shell through the same driving motor is not provided, and a user operates the shell to ensure that the shell is not stable enough, so that the service life of the valve body casting is short, the application range is small, the corrosion resistance is poor, and the valve body casting is not convenient enough.
Disclosure of Invention
The invention aims to provide a valve body casting process, which comprises the following specific steps:
s1, manufacturing a wax mould: pressing the wax material into a mold cavity through a wax injection machine, cooling and taking out to form a wax mold, and repairing the defects on the surface of the wax mold to ensure the quality of the wax mold;
s2, wax module tree: cleaning the wax mould, and welding a plurality of fusible patterns on a gate rod by using a heated welding knife to manufacture a module;
s3, manufacturing a shell: putting the wax pattern module into a cleaning barrel for cleaning, dipping an upper surface layer adhesive on the surface of the wax pattern module, then spraying surface layer powder and sand, repeating the process, and adding two layers, a reinforced layer two layers, a reinforced layer three layers and a reinforced layer four layers on the surface of the wax pattern module to form a silica sol module shell with certain strength and refractoriness;
s4, dewaxing and roasting: feeding the wax mold into an electric wax melting furnace to melt the wax, taking out the shell after 5-7 minutes, putting the shell into a roasting furnace to roast, keeping the temperature at 1100 ℃ for 70 minutes, and taking out the shell;
s5, smelting and pouring: smelting the raw material of the valve body, and pouring the smelted molten metal into the shell;
s6, shelling and dropping: after the molten metal is solidified, removing the shell outside the module, and separating the valve body casting on the module from the pouring rod to obtain a blank valve body casting;
s7, grinding a gate: polishing the blank valve body casting through a grinding wheel or an abrasive belt, and removing the residual sprue on the blank valve body casting after the pouring rod is cut off;
s8, shot blasting finishing: removing sand sticking and surface foreign matters of the valve body casting, relief-grinding projections such as cut ribs, fash, burrs and the like, polishing and finishing surface defects of the valve body casting, and strengthening the surface quality of the valve body casting;
s9, inspection and flaw detection: carrying out size appearance inspection on the inner part and the outer part of the finished valve body casting, and carrying out penetration flaw detection on the valve body casting;
s10, finished product warehousing: and packaging and warehousing the valve body casting which is qualified after inspection.
Further, in the step S3, the surface layer adhesive is silica sol, the surface layer powder is 320-mesh refined quartz powder, the surface layer sand is 100-mesh refined quartz sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 6.5 hours, the second layer adhesive in the step S3 is silica sol, the second layer powder is 320-mesh refined quartz powder, the second layer sand is 60-mesh mullite sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 9 hours, the step S3 is to fix one layer of adhesive which is water glass, fix one layer of powder which is 200-mesh high-alumina synthetic powder, fix one layer of sand which is 60-mesh mullite sand, the air drying temperature of the fixed layer is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
Further, in the step S3, the two layers of reinforcing adhesive are water glass, the two layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the two layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the two layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the three layers of reinforcing adhesive in the step S3 are water glass, the three layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the three layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the three layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the four layers of reinforcing adhesive in the step S3 are water glass, the four layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the four layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the four layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
Further, the valve body ingredients in the step S5 are composed of the following components in parts by weight: 40 parts of CF8M, 53.5 parts of CF8, 1 part of pure nickel, 2.16 parts of ferromolybdenum, 2.5 parts of low-carbon ferrochromium, 0.24 part of low-carbon ferromanganese and 0.6 part of ferrosilicon.
A valve body casting device comprises a top plate, wherein a support column is fixedly installed at the bottom end of the top plate, a partition plate is fixedly connected to the inner side of the support column, a workbench is installed at the bottom of the partition plate, a sieve plate is connected to the inner portion of the workbench in an embedded mode, a material receiving cylinder is installed at the bottom of the workbench, a movable wheel is connected to the outer side of the material receiving cylinder, a vibration shell rod is installed at the bottom of the partition plate in a penetrating mode, a vertical rod is connected to the top end of the vibration shell rod, a melting mechanism is installed at the top of the top plate, a servo motor is arranged inside the melting mechanism, a rotating rod is connected to the bottom end of the servo motor, a cross rod is fixedly installed on the outer wall of the rotating rod, an adjusting rod is connected to the outer side of the cross rod, a scraper is fixedly installed on the other side of the adjusting rod, a first reset spring is sleeved on the outer wall of the adjusting rod, a sleeve plate is fixedly installed on one side of the first reset spring, the outer wall of the cross rod is fixedly connected with the sleeve plate, the outer wall of the rotating rod is provided with a first bearing, the outer wall of the first bearing is connected with the rotating plate, the outer wall of the rotating plate is provided with a material melting cylinder, the bottom end of the material melting cylinder is fixedly connected with a material guide rod, a material leakage hole is formed in the rotating plate, one side of the top plate is connected with a transmission shelling mechanism, and one side of the shell vibrating rod is provided with a clamping mechanism.
Furthermore, the scraper blade forms an elastic structure through between first reset spring and the lagging, and the scraper blade forms a transmission structure through adjusting between pole and the bull stick.
Further, the transmission shelling mechanism comprises a side plate, a connecting rod is fixedly mounted on one side of the side plate, a second return spring is sleeved on the outer wall of the connecting rod, a connecting block is fixedly mounted on the other side of the connecting rod, a first sliding block is fixedly connected to the bottom end of the connecting block, a first sliding groove is slidably mounted at the bottom end of the first sliding block and is formed in the top of the top plate, a second bearing is mounted in the connecting block and is sleeved on the outer wall of the vertical rod, a first gear disc is fixedly connected to the outer wall of the vertical rod and is mounted in the top plate, a second gear disc is connected to one side of the first gear disc in a meshed mode, a third bearing is rotatably mounted on the inner wall of the second gear disc and is sleeved on the outer wall of the rotating rod, and a fixing plate is fixedly connected to the top end of the top plate, and one side fixed mounting of fixed plate has third reset spring, third reset spring's opposite side fixedly connected with U type pole, and the outer wall connection of U type pole has the fourth bearing to the fourth bearing is installed at the top of fixed plate.
Furthermore, the connecting block forms sliding structure through between first slider, first spout and the roof, and the connecting block forms transmission structure through between second bearing, pole setting and the first toothed disc.
Further, the inside of chucking mechanism is including the second spout, and the second spout is seted up in the inside of baffle, the bottom sliding connection of second spout has the second slider, and the bottom fixed mounting of second slider has the riser, one side fixedly connected with diaphragm of riser, and the internal thread of diaphragm installs the hand and twists the screw rod, one side that the screw rod was twisted to the hand is connected with the clamp splice, one side fixed mounting of riser has fourth reset spring.
Furthermore, the vertical plate forms a sliding structure through the second sliding block, the second sliding groove and the partition plate, and the vertical plate and the transverse plate are vertically distributed.
Compared with the prior art, the invention has the beneficial effects that:
1. the valve body is cast by investment casting, so that the size precision of a valve body casting is high, the roughness value of the surface of the valve body is reduced, the main materials of the valve body are CF8M and CF8, the weight of the valve body is reduced, the surface smoothness of the valve body is ensured, meanwhile, the surface quality of a shell is improved by adopting quartz sand on the surface layer of a wax mold, the shell making period of the shell is shortened by adopting water glass coating on the reinforcing layer, the problem of low wet strength of silica sol shell making is solved, the large-batch production of the valve body is facilitated, the consistency of the valve body casting is ensured, and metal raw materials are greatly saved.
2. According to the invention, the material melting mechanism is arranged, under the action of electrifying the servo motor, the rotating rod is rotated, the rotating rod drives the transverse rod to rotate, so that the transverse rod drives the scraper to scrape the inner wall of the material melting barrel, under the elastic action of the first reset spring, the scraper always supports against the inner wall of the material melting barrel, the working efficiency of the scraper is ensured, and by arranging the rotating plate at the bottom of the rotating rod, molten metal moves downwards through the material leakage hole under the action of the material leakage hole, so that the accumulation of the molten metal is avoided, and the uniformity of discharging of the molten metal through the material guide rod is ensured.
3. According to the invention, the transmission shelling mechanism is arranged, the side plate is pressed, under the elastic action of the second reset spring, the side plate drives the connecting rod to push the connecting block to move, so that the connecting block moves at the top of the top plate through the first sliding block and the first sliding groove, the connecting block drives the vertical rod to move towards one side of the rotating rod through the second bearing, so that the first gear disc and the second gear disc are meshed and connected, the rotating rod is driven to rotate through the servo motor, under the action of the first gear disc and the second gear disc, the vertical rod is rotated, so that the shell vibrating rod at the bottom of the vertical rod rotates to shell the shell, and through the arrangement, the device can simultaneously demold the shell through the servo motor, the practicability of the device is improved, and the use resources are saved.
According to the invention, the clamping mechanism is arranged, the plurality of groups of vertical plates are arranged at the bottom of the partition plate, the vertical plates which are symmetrically arranged clamp and fix the shell under the elastic action of the fourth reset spring, and the clamping block is adjusted by screwing the screw rod by hand, so that the clamping block fixes the shell on one side of the transverse plate again.
The invention aims to provide a valve body casting process, which comprises the following specific steps:
s1, manufacturing a wax mould: pressing the wax material into a mold cavity through a wax injection machine, cooling and taking out to form a wax mold, and repairing the defects on the surface of the wax mold to ensure the quality of the wax mold;
s2, wax module tree: cleaning the wax mould, and welding a plurality of fusible patterns on a gate rod by using a heated welding knife to manufacture a module;
s3, manufacturing a shell: putting the wax pattern module into a cleaning barrel for cleaning, dipping an upper surface layer adhesive on the surface of the wax pattern module, then spraying surface layer powder and sand, repeating the process, and adding two layers, a reinforced layer two layers, a reinforced layer three layers and a reinforced layer four layers on the surface of the wax pattern module to form a silica sol module shell with certain strength and refractoriness;
s4, dewaxing and roasting: feeding the wax mold into an electric wax melting furnace to melt the wax, taking out the shell after 5-7 minutes, putting the shell into a roasting furnace to roast, keeping the temperature at 1100 ℃ for 70 minutes, and taking out the shell;
s5, smelting and pouring: smelting the raw material of the valve body, and pouring the smelted molten metal into the shell;
s6, shelling and dropping: after the molten metal is solidified, removing the shell outside the module, and separating the valve body casting on the module from the pouring rod to obtain a blank valve body casting;
s7, grinding a gate: polishing the blank valve body casting through a grinding wheel or an abrasive belt, and removing the residual sprue on the blank valve body casting after the pouring rod is cut off;
s8, shot blasting finishing: removing sand sticking and surface foreign matters of the valve body casting, relief-grinding projections such as cut ribs, fash, burrs and the like, polishing and finishing surface defects of the valve body casting, and strengthening the surface quality of the valve body casting;
s9, inspection and flaw detection: carrying out size appearance inspection on the inner part and the outer part of the finished valve body casting, and carrying out penetration flaw detection on the valve body casting;
s10, finished product warehousing: and packaging and warehousing the valve body casting which is qualified after inspection.
Further, in the step S3, the surface layer adhesive is silica sol, the surface layer powder is 320-mesh refined quartz powder, the surface layer sand is 100-mesh refined quartz sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 6.5 hours, the second layer adhesive in the step S3 is silica sol, the second layer powder is 320-mesh refined quartz powder, the second layer sand is 60-mesh mullite sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 9 hours, the step S3 is to fix one layer of adhesive which is water glass, fix one layer of powder which is 200-mesh high-alumina synthetic powder, fix one layer of sand which is 60-mesh mullite sand, the air drying temperature of the fixed layer is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
Further, in the step S3, the two layers of reinforcing adhesive are water glass, the two layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the two layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the two layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the three layers of reinforcing adhesive in the step S3 are water glass, the three layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the three layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the three layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the four layers of reinforcing adhesive in the step S3 are water glass, the four layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the four layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the four layers of reinforcing sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
Further, the valve body ingredients in the step S5 are composed of the following components in parts by weight: 40 parts of CF8M, 53.5 parts of CF8, 1 part of pure nickel, 2.16 parts of ferromolybdenum, 2.5 parts of low-carbon ferrochromium, 0.24 part of low-carbon ferromanganese and 0.6 part of ferrosilicon.
A valve body casting device comprises a top plate, wherein a support column is fixedly installed at the bottom end of the top plate, a partition plate is fixedly connected to the inner side of the support column, a workbench is installed at the bottom of the partition plate, a sieve plate is connected to the inner portion of the workbench in an embedded mode, a material receiving cylinder is installed at the bottom of the workbench, a movable wheel is connected to the outer side of the material receiving cylinder, a vibration shell rod is installed at the bottom of the partition plate in a penetrating mode, a vertical rod is connected to the top end of the vibration shell rod, a melting mechanism is installed at the top of the top plate, a servo motor is arranged inside the melting mechanism, a rotating rod is connected to the bottom end of the servo motor, a cross rod is fixedly installed on the outer wall of the rotating rod, an adjusting rod is connected to the outer side of the cross rod, a scraper is fixedly installed on the other side of the adjusting rod, a first reset spring is sleeved on the outer wall of the adjusting rod, a sleeve plate is fixedly installed on one side of the first reset spring, the outer wall of the cross rod is fixedly connected with the sleeve plate, the outer wall of the rotating rod is provided with a first bearing, the outer wall of the first bearing is connected with the rotating plate, the outer wall of the rotating plate is provided with a material melting cylinder, the bottom end of the material melting cylinder is fixedly connected with a material guide rod, a material leakage hole is formed in the rotating plate, one side of the top plate is connected with a transmission shelling mechanism, and one side of the shell vibrating rod is provided with a clamping mechanism.
Furthermore, the scraper blade forms an elastic structure through between first reset spring and the lagging, and the scraper blade forms a transmission structure through adjusting between pole and the bull stick.
Further, the transmission shelling mechanism comprises a side plate, a connecting rod is fixedly mounted on one side of the side plate, a second return spring is sleeved on the outer wall of the connecting rod, a connecting block is fixedly mounted on the other side of the connecting rod, a first sliding block is fixedly connected to the bottom end of the connecting block, a first sliding groove is slidably mounted at the bottom end of the first sliding block and is formed in the top of the top plate, a second bearing is mounted in the connecting block and is sleeved on the outer wall of the vertical rod, a first gear disc is fixedly connected to the outer wall of the vertical rod and is mounted in the top plate, a second gear disc is connected to one side of the first gear disc in a meshed mode, a third bearing is rotatably mounted on the inner wall of the second gear disc and is sleeved on the outer wall of the rotating rod, and a fixing plate is fixedly connected to the top end of the top plate, and one side fixed mounting of fixed plate has third reset spring, third reset spring's opposite side fixedly connected with U type pole, and the outer wall connection of U type pole has the fourth bearing to the fourth bearing is installed at the top of fixed plate.
Furthermore, the connecting block forms sliding structure through between first slider, first spout and the roof, and the connecting block forms transmission structure through between second bearing, pole setting and the first toothed disc.
Further, the inside of chucking mechanism is including the second spout, and the second spout is seted up in the inside of baffle, the bottom sliding connection of second spout has the second slider, and the bottom fixed mounting of second slider has the riser, one side fixedly connected with diaphragm of riser, and the internal thread of diaphragm installs the hand and twists the screw rod, one side that the screw rod was twisted to the hand is connected with the clamp splice, one side fixed mounting of riser has fourth reset spring.
Furthermore, the vertical plate forms a sliding structure through the second sliding block, the second sliding groove and the partition plate, and the vertical plate and the transverse plate are vertically distributed.
Compared with the prior art, the invention has the beneficial effects that:
1. the valve body is cast by investment casting, so that the size precision of a valve body casting is high, the roughness value of the surface of the valve body is reduced, the main materials of the valve body are CF8M and CF8, the weight of the valve body is reduced, the surface smoothness of the valve body is ensured, meanwhile, the surface quality of a shell is improved by adopting quartz sand on the surface layer of a wax mold, the shell making period of the shell is shortened by adopting water glass coating on the reinforcing layer, the problem of low wet strength of silica sol shell making is solved, the large-batch production of the valve body is facilitated, the consistency of the valve body casting is ensured, and metal raw materials are greatly saved.
2. According to the invention, the material melting mechanism is arranged, under the action of electrifying the servo motor, the rotating rod is rotated, the rotating rod drives the transverse rod to rotate, so that the transverse rod drives the scraper to scrape the inner wall of the material melting barrel, under the elastic action of the first reset spring, the scraper always supports against the inner wall of the material melting barrel, the working efficiency of the scraper is ensured, and by arranging the rotating plate at the bottom of the rotating rod, molten metal moves downwards through the material leakage hole under the action of the material leakage hole, so that the accumulation of the molten metal is avoided, and the uniformity of discharging of the molten metal through the material guide rod is ensured.
3. According to the invention, the transmission shelling mechanism is arranged, the side plate is pressed, under the elastic action of the second reset spring, the side plate drives the connecting rod to push the connecting block to move, so that the connecting block moves at the top of the top plate through the first sliding block and the first sliding groove, the connecting block drives the vertical rod to move towards one side of the rotating rod through the second bearing, so that the first gear disc and the second gear disc are meshed and connected, the rotating rod is driven to rotate through the servo motor, under the action of the first gear disc and the second gear disc, the vertical rod is rotated, so that the shell vibrating rod at the bottom of the vertical rod rotates to shell the shell, and through the arrangement, the device can simultaneously demold the shell through the servo motor, the practicability of the device is improved, and the use resources are saved.
4. According to the invention, the clamping mechanism is arranged, the plurality of groups of vertical plates are arranged at the bottom of the partition plate, the vertical plates which are symmetrically arranged clamp and fix the shell under the elastic action of the fourth reset spring, and the clamping block is adjusted by screwing the screw rod by hand, so that the clamping block fixes the shell on one side of the transverse plate again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic perspective view of a valve body casting device according to the present invention;
FIG. 2 is a schematic cross-sectional view of a fusing mechanism of the present invention;
FIG. 3 is a schematic perspective view of a portion of a fusing mechanism of the present invention;
FIG. 4 is a schematic structural view of a section of the transmission hulling mechanism of the present invention;
FIG. 5 is a schematic sectional view of the chucking mechanism of the present invention;
fig. 6 is a schematic perspective view of a part of the chucking mechanism in the present invention.
Reference numbers in the figures: 1. a top plate; 2. a support pillar; 3. a partition plate; 4. a work table; 5. a sieve plate; 6. a material receiving barrel; 7. a movable wheel; 8. a shell vibrating rod; 9. erecting a rod; 10. a melt mechanism; 1001. a servo motor; 1002. a rotating rod; 1003. a cross bar; 1004. adjusting a rod; 1005. a squeegee; 1006. a first return spring; 1007. sheathing; 1008. a first bearing; 1009. rotating the plate; 1010. a melting barrel; 1011. a material guiding rod; 1012. a material leaking hole; 11. a transmission hulling mechanism; 1101. a side plate; 1102. a connecting rod; 1103. a second return spring; 1104. connecting blocks; 1105. a first slider; 1106. a first chute; 1107. a second bearing; 1108. a first gear plate; 1109. a second gear wheel disc; 1110. a third bearing; 1111. a fixing plate; 1112. a third return spring; 1113. a U-shaped rod; 1114. a fourth bearing; 12. a chucking mechanism; 1201. a second chute; 1202. a second slider; 1203. a vertical plate; 1204. a transverse plate; 1205. screwing the screw rod by hand; 1206. a clamping block; 1207. and a fourth return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A valve body casting process comprises the following specific steps:
s1, manufacturing a wax mould: pressing the wax material into a mold cavity through a wax injection machine, cooling and taking out to form a wax mold, and repairing the defects on the surface of the wax mold to ensure the quality of the wax mold;
s2, wax module tree: cleaning the wax mould, and welding a plurality of fusible patterns on a gate rod by using a heated welding knife to manufacture a module;
s3, manufacturing a shell: putting the wax pattern module into a cleaning barrel for cleaning, dipping an upper surface layer adhesive on the surface of the wax pattern module, then spraying surface layer powder and sand, repeating the process, and adding two layers, a reinforced layer two layers, a reinforced layer three layers and a reinforced layer four layers on the surface of the wax pattern module to form a silica sol module shell with certain strength and refractoriness;
s4, dewaxing and roasting: feeding the wax mold into an electric wax melting furnace to melt the wax, taking out the shell after 5-7 minutes, putting the shell into a roasting furnace to roast, keeping the temperature at 1100 ℃ for 70 minutes, and taking out the shell;
s5, smelting and pouring: smelting the raw material of the valve body, and pouring the smelted molten metal into the shell;
s6, shelling and dropping: after the molten metal is solidified, removing the shell outside the module, and separating the valve body casting on the module from the pouring rod to obtain a blank valve body casting;
s7, grinding a gate: polishing the blank valve body casting through a grinding wheel or an abrasive belt, and removing the residual sprue on the blank valve body casting after the pouring rod is cut off;
s8, shot blasting finishing: removing sand sticking and surface foreign matters of the valve body casting, relief-grinding projections such as cut ribs, fash, burrs and the like, polishing and finishing surface defects of the valve body casting, and strengthening the surface quality of the valve body casting;
s9, inspection and flaw detection: carrying out size appearance inspection on the inner part and the outer part of the finished valve body casting, and carrying out penetration flaw detection on the valve body casting;
s10, finished product warehousing: and packaging and warehousing the valve body casting which is qualified after inspection.
Further, in S3, the surface layer adhesive is silica sol, the surface layer powder is 320-mesh refined quartz powder, the surface layer sand is 100-mesh refined quartz sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 6.5 hours, the two layers of adhesive in S3 are silica sol, the two layers of powder are 320-mesh refined quartz powder, the two layers of sand are 60-mesh mullite sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 9 hours, a layer of adhesive which is water glass is added in S3, a layer of powder is reinforced by 200-mesh high-alumina synthetic powder, a layer of sand is reinforced by 60-mesh mullite sand, the air drying temperature of the reinforced layer is 40 ℃, the air drying time is 25 minutes, the hardening time is 20 minutes, the surface quality of the shell is improved by adopting a higher powder-liquid ratio, the strength of the shell is enhanced, by adopting the water glass coating, the shell making period of the shell is shortened, and the problem of low wet strength of the shell made by silica sol is solved.
Further, the reinforced two-layer adhesive in S3 is water glass, the reinforced two-layer powder is 200-mesh high-alumina synthetic powder, the reinforced two-layer sand is 20-mesh mullite sand, the air drying temperature of the reinforced two-layer is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the reinforced three-layer adhesive in S3 is water glass, the reinforced three-layer powder is 200-mesh high-alumina synthetic powder, the reinforced three-layer sand is 20-mesh mullite sand, the air drying temperature of the reinforced three-layer is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, the reinforced four-layer adhesive in S3 is water glass, the reinforced four-layer powder is 200-mesh high-alumina synthetic powder, the reinforced four-layer sand is 20-mesh mullite sand, the air drying temperature of the reinforced four-layer is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, and the shell made of the high-alumina synthetic powder does not precipitate, has strong tensile force, large viscosity and uniform granularity, the composite shell has the advantages of high refractoriness, good surface smoothness of the casting, small contraction expansion coefficient of mullite sand, high-temperature structural strength, convenient operation and production benefit, and meanwhile, the surface quality of the valve body casting is greatly improved, the surface roughness is reduced, and the surface defects are reduced to reduce the repair rate of the valve body casting by adopting the composite shell with silica sol and water glass as adhesives.
Further, the valve body ingredients in the S5 are composed of the following components in parts by weight: the valve body is made of 40 parts by weight of CF8M, 53.5 parts by weight of CF8, 1 part by weight of pure nickel, 2.16 parts by weight of ferromolybdenum, 2.5 parts by weight of low-carbon ferrochromium, 0.24 part by weight of low-carbon ferromanganese and 0.6 part by weight of ferrosilicon, and the main materials of the valve body are CF8M and CF8, so that the weight of the valve body is reduced, and the surface smoothness of the valve body is ensured.
A valve body casting device comprises a top plate 1, a supporting column 2, a partition plate 3, a workbench 4, a screen plate 5, a material receiving cylinder 6, a movable wheel 7, a shell vibrating rod 8, a vertical rod 9, a melting mechanism 10, a servo motor 1001, a rotating rod 1002, a cross rod 1003, an adjusting rod 1004, a scraping plate 1005, a first return spring 1006, a sleeve plate 1007, a first bearing 1008, a rotating plate 1009, a melting cylinder 1010, a material guiding rod 1011, a material leaking hole 1012, a transmission shell removing mechanism 11, a side plate 1101, a connecting rod 1102, a second return spring 1103, a connecting block 1104, a first sliding block 1105, a first sliding chute 1106, a second bearing 1107, a first gear disc 1108, a second gear disc 1109, a third bearing 1110, a fixing plate 1111, a third return spring 1112, a U-shaped rod 1113, a fourth bearing 1114, a clamping mechanism 12, a second sliding chute, a second sliding block 1202, a vertical plate 1204, a hand-twisted screw 1205, a clamping block 1206 and a fourth return spring 1207, wherein the supporting column 2 is fixedly installed at the bottom end of the top plate 1, a partition plate 3 is fixedly connected to the inner side of the supporting column 2, a workbench 4 is installed at the bottom of the partition plate 3, a sieve plate 5 is connected to the inner portion of the workbench 4 in an embedded mode, a material receiving cylinder 6 is installed at the bottom of the workbench 4, a movable wheel 7 is connected to the outer side of the material receiving cylinder 6, a vibration shell rod 8 is installed at the bottom of the partition plate 3 in a penetrating mode, a vertical rod 9 is connected to the top end of the vibration shell rod 8, a material melting mechanism 10 is installed at the top of the top plate 1, a servo motor 1001 is included in the material melting mechanism 10, a rotating rod 1002 is connected to the bottom end of the servo motor 1001, a cross rod 1003 is fixedly installed on the outer wall of the rotating rod 1002, an adjusting rod 1004 is connected to the outer side of the cross rod 1003, a scraping plate 1005 is fixedly installed on the other side of the adjusting rod 1004, a first return spring 1006 is sleeved on the outer wall of the adjusting rod 1004, a sleeve plate 1007 is fixedly installed on one side of the first return spring 1006, first bearing 1008 is installed to the outer wall of bull stick 1002, and the outer wall connection of first bearing 1008 has a commentaries on classics board 1009, melt feed cylinder 1010 is installed to the outer wall of commentaries on classics board 1009, and the bottom fixedly connected with guide pole 1011 of melt feed cylinder 1010, the material hole 1012 that leaks has been seted up to the inside of commentaries on classics board 1009, one side of roof 1 is connected with transmission shelling mechanism 11, chucking mechanism 12 is installed to one side of shake shell pole 8, set up sieve 5 through the inside at workstation 4, make sieve 5 can sieve the shelling piece of shell and leak, be convenient for connect feed cylinder 6 to waste metal collection, avoided the waste material to fly in disorder, the environment of valve body casting has been improved.
Further, the scraper 1005 is through constituting the elastic construction between first reset spring 1006 and the lagging 1007, and the scraper 1005 is through constituting the transmission structure between regulation pole 1004 and the bull stick 1002, under the elastic action of first reset spring 1006, makes the scraper 1005 support tightly to the inner wall of melt section of thick bamboo 1010 all the time, avoids the metal liquid to hang on the wall at the inner wall of melt section of thick bamboo 1010, the effectual metal raw materials of having practiced thrift.
Further, the inside of the transmission shelling mechanism 11 includes a side plate 1101, a connecting rod 1102 is fixedly installed on one side of the side plate 1101, a second return spring 1103 is sleeved on the outer wall of the connecting rod 1102, a connecting block 1104 is fixedly installed on the other side of the connecting rod 1102, a first sliding block 1105 is fixedly connected to the bottom end of the connecting block 1104, a first sliding chute 1106 is slidably installed at the bottom end of the first sliding block 1105, the first sliding chute 1106 is formed in the top of the top plate 1, a second bearing 1107 is installed in the connecting block 1104, the second bearing 1107 is sleeved on the outer wall of the upright 9, a first gear disc 1108 is fixedly connected to the outer wall of the upright 9, the first gear disc 1108 is installed in the top plate 1, a second gear disc 1109 is engaged with one side of the first gear disc 1108, a third bearing 1110 is rotatably installed on the inner wall of the second gear disc 1109, and the third bearing is sleeved on the outer wall of the rotating rod 1110, top fixedly connected with fixed plate 1111 of roof 1, and one side fixed mounting of fixed plate 1111 has third reset spring 1112, the opposite side fixedly connected with U type pole 1113 of third reset spring 1112, and the outer wall connection of U type pole 1113 has fourth bearing 1114, and fourth bearing 1114 is installed at the top of fixed plate 1111, elastic action at second reset spring 1103, make curb plate 1101 drive connecting rod 1102 and promote connecting block 1104 activity, thereby make connecting block 1104 pass through first slider 1105, first spout 1106 is at the top activity of roof 1, make connecting block 1104 pass through second bearing 1107 and drive pole setting 9 to the activity of bull stick 1002 one side.
Further, the connecting block 1104 forms a sliding structure through the first sliding block 1105, the first sliding groove 1106 and the top plate 1, and the connecting block 1104 forms a transmission structure through the second bearing 1107, the vertical rod 9 and the first gear disc 1108, so that the vertical rod 9 rotates under the action of the first gear disc 1108 and the second gear disc 1109, and the shell vibrating rod 8 at the bottom of the vertical rod 9 rotates to remove the shell outside the module.
Further, chucking mechanism 12's inside is including second spout 1201, and second spout 1201 is seted up in the inside of baffle 3, the bottom sliding connection of second spout 1201 has second slider 1202, and the bottom fixed mounting of second slider 1202 has riser 1203, one side fixedly connected with diaphragm 1204 of riser 1203, and the internal thread of diaphragm 1204 installs hand-screw 1205, one side that hand-screw 1205 is connected with clamp splice 1206, one side fixed mounting of riser 1203 has fourth reset spring 1207, adjust clamp splice 1206 through hand-screw 1205, make clamp splice 1206 fix the shell once more in diaphragm 1204 one side, can make the shell remain stable on the surface of workstation 4, avoided the shell to take place the skew when pouring or shelling.
Further, the vertical plate 1203 forms a sliding structure through the second slider 1202, the second sliding groove 1201 and the partition plate 3, and the vertical plate 1203 and the horizontal plate 1204 are vertically distributed, a plurality of groups of vertical plates 1203 are arranged at the bottom of the partition plate 3, and under the elastic action of the fourth reset spring 1207, the vertical plates 1203 symmetrically arranged clamp and fix the shell.
The invention provides a production example of a valve body casting process, which comprises the following steps: in 2019, in production in 06 months, indexes of 5-10 days in 06 months are counted.
Valve body detection result:
| item | Impact toughness/J.cm 2 | Torsional strength/MPa | Yield strength/MPa | Tensile strength/MPa | Elongation (%) | Hardness HV |
| Standard value | ≥205 | ≥520 | ≥40 | ≤200 | ||
| Valve body A | 265.8 | 612.4 | 261.2 | 493.4 | 56 | 156 |
| Valve body B | 235.4 | 605.3 | 258.8 | 352.7 | 57 | 173 |
| Valve body C | 198.6 | 597.7 | 289.7 | 568.5 | 59 | 181 |
From the above data it can be derived: according to the invention, through improving the valve body batching and pouring process, the casting precision of the valve body is ensured, the surface smoothness of the valve body is improved, meanwhile, the service performance of the valve body is greatly improved, and the service life of the valve body is favorably prolonged.
The working principle is as follows: firstly, pressing wax material into a mold cavity by a wax injection machine, cooling and taking out to form a wax mold, repairing defects on the surface of the wax mold to ensure the quality of the wax mold, cleaning the wax mold, welding a plurality of melting molds on a sprue bar by a heated welding knife to form a mold set, putting the wax mold set into a cleaning barrel for cleaning, dipping an upper surface layer adhesive on the surface of the wax mold set, then spraying surface layer powder and sand, repeating the process, adding two layers, reinforcing one layer, reinforcing two layers, reinforcing three layers and reinforcing four layers on the surface of the wax mold set to form a silica sol mold set shell with certain strength and refractoriness, then sending the wax mold into an electric wax melting furnace to melt the wax, taking out the mold shell after 5-7 minutes, putting the mold shell into a roasting furnace for roasting, taking out the mold shell after roasting to 1100 ℃ for heat preservation for 70 minutes, smelting raw materials of a valve body, electrifying a servo motor 1001, under the action of rotating rod 1002 rotating, rotating rod 1002 is made to drive cross rod 1003 to rotate, thereby cross rod 1003 drives scraper 1005 to scrape the inner wall of melting barrel 1010, under the elastic action of first reset spring 1006, scraper 1005 is always supported tightly against the inner wall of melting barrel 1010, thereby avoiding the metal liquid from hanging on the wall on the inner wall of melting barrel 1010, thereby effectively saving metal raw materials, the melted metal liquid is poured into the shell, after the metal liquid is solidified, by pressing side plate 1101, under the elastic action of second reset spring 1103, side plate 1101 drives connecting rod 1102 to push connecting block 1104 to move, thereby making connecting block 1104 move on the top of top plate 1 through first sliding block 1105 and first sliding chute 1106, making connecting block 1104 drive upright rod 9 to move to one side of rotating rod 1002 through second bearing 1107, thereby making first gear disc 1108 be connected with second gear disc 1109 in meshing, and driving rotating rod 1002 to rotate through servo motor 1001, under the action of the first gear disc 1108 and the second gear disc 1109, the vertical rod 9 is rotated, so that the shell vibrating rod 8 at the bottom of the vertical rod 9 rotates to remove a shell outside the module, then a valve body casting on the module is separated from a casting rod to obtain a blank valve body casting, the blank valve body casting is polished through a grinding wheel or an abrasive belt, the residual root of a sprue on the blank valve body casting with the casting rod cut off is removed, then the sand sticking and surface foreign matters of the valve body casting are removed, protrusions such as cutting ribs, flash, burrs and the like are relief-ground, the surface defects of the valve body casting are polished and finished, the surface quality of the valve body casting is enhanced, the inner part and the outer part of the finished valve body casting are subjected to size appearance inspection, the valve body casting is subjected to penetration inspection, and the qualified valve body casting is packaged and warehoused, so that the valve body casting process is completed.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A valve body casting process is characterized in that: the valve body casting process comprises the following specific steps:
s1, manufacturing a wax mould: pressing the wax material into a mold cavity through a wax injection machine, cooling and taking out to form a wax mold, and repairing the defects on the surface of the wax mold to ensure the quality of the wax mold;
s2, wax module tree: cleaning the wax mould, and welding a plurality of fusible patterns on a gate rod by using a heated welding knife to manufacture a module;
s3, manufacturing a shell: putting the wax pattern module into a cleaning barrel for cleaning, dipping an upper surface layer adhesive on the surface of the wax pattern module, then spraying surface layer powder and sand, repeating the process, and adding two layers, a reinforced layer two layers, a reinforced layer three layers and a reinforced layer four layers on the surface of the wax pattern module to form a silica sol module shell with certain strength and refractoriness;
s4, dewaxing and roasting: feeding the wax mold into an electric wax melting furnace to melt the wax, taking out the shell after 5-7 minutes, putting the shell into a roasting furnace to roast, keeping the temperature at 1100 ℃ for 70 minutes, and taking out the shell;
s5, smelting and pouring: smelting the raw material of the valve body, and pouring the smelted molten metal into the shell;
s6, shelling and dropping: after the molten metal is solidified, removing the shell outside the module, and separating the valve body casting on the module from the pouring rod to obtain a blank valve body casting;
s7, grinding a gate: polishing the blank valve body casting through a grinding wheel or an abrasive belt, and removing the residual sprue on the blank valve body casting after the pouring rod is cut off;
s8, shot blasting finishing: removing sand sticking and surface foreign matters of the valve body casting, relief-grinding projections such as cut ribs, fash, burrs and the like, polishing and finishing surface defects of the valve body casting, and strengthening the surface quality of the valve body casting;
s9, inspection and flaw detection: carrying out size appearance inspection on the inner part and the outer part of the finished valve body casting, and carrying out penetration flaw detection on the valve body casting;
s10, finished product warehousing: and packaging and warehousing the valve body casting which is qualified after inspection.
2. The valve body casting process according to claim 1, wherein in S3, the surface layer adhesive is silica sol, the surface layer powder is 320-mesh refined quartz powder, the surface layer sand is 100-mesh refined quartz sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 6.5 hours, in S3, the two layers of adhesive are silica sol, the two layers of powder are 320-mesh refined quartz powder, the two layers of sand are 60-mesh mullite sand, the air drying temperature of the surface layer is 25 ℃, the air drying time is 9 hours, in S3, the one layer of adhesive is reinforced by water glass, the one layer of reinforced powder is 200-mesh high-alumina synthetic powder, the one layer of reinforced sand is 60-mesh mullite sand, the air drying temperature of the one layer of reinforced sand is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
3. The valve body casting process according to claim 1, wherein in S3, the two layers of reinforcing adhesives are water glass, the two layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the two layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the two layers of reinforcing adhesives is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, in S3, the three layers of reinforcing adhesives are water glass, the three layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the three layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the three layers of reinforcing adhesives is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes, in S3, the four layers of reinforcing adhesives are water glass, the four layers of reinforcing powder are 200-mesh high-alumina synthetic powder, the four layers of reinforcing sand are 20-mesh mullite sand, the air drying temperature of the four layers of reinforcing adhesives is 40 ℃, the air drying time is 25 minutes, and the hardening time is 20 minutes.
4. The valve body casting process according to claim 1, wherein the valve body ingredients in the step S5 are composed of the following components in parts by weight: 40 parts of CF8M, 53.5 parts of CF8, 1 part of pure nickel, 2.16 parts of ferromolybdenum, 2.5 parts of low-carbon ferrochromium, 0.24 part of low-carbon ferromanganese and 0.6 part of ferrosilicon.
5. The utility model provides a valve body casting device, includes roof (1), its characterized in that, the bottom fixed mounting of roof (1) has support column (2), and the inboard fixedly connected with baffle (3) of support column (2), workstation (4) are installed to the bottom of baffle (3), and the inside gomphosis of workstation (4) is connected with sieve (5), the bottom of workstation (4) is installed and is connect feed cylinder (6), and connects the outside of feed cylinder (6) and be connected with loose pulley (7), the bottom of baffle (3) is run through and is installed shell pole (8) that shakes, and shakes the top of shell pole (8) and be connected with pole setting (9), melt mechanism (10) is installed at the top of roof (1), the inside of melt mechanism (10) is including servo motor (1001), and servo motor (1001) bottom is connected with bull stick (1002), the outer wall fixed mounting of bull stick (1002) has horizontal pole (1003), the outer side of the cross rod (1003) is connected with an adjusting rod (1004), the other side of the adjusting rod (1004) is fixedly provided with a scraper (1005), a first return spring (1006) is sleeved on the outer wall of the adjusting rod (1004), a sleeve plate (1007) is fixedly arranged on one side of the first return spring (1006), the sleeve plate (1007) is fixedly connected with the outer wall of the cross rod (1003), the outer wall of the rotating rod (1002) is provided with a first bearing (1008), and the outer wall of the first bearing (1008) is connected with a rotating plate (1009), the outer wall of the rotating plate (1009) is provided with a melting cylinder (1010), the bottom end of the melting barrel (1010) is fixedly connected with a material guide rod (1011), the interior of the rotating plate (1009) is provided with a material leaking hole (1012), one side of the top plate (1) is connected with a transmission shelling mechanism (11), and one side of the shell vibrating rod (8) is provided with a clamping mechanism (12).
6. The valve body casting device according to claim 5, wherein the scraper (1005) forms an elastic structure with the sleeve plate (1007) through the first return spring (1006), and the scraper (1005) forms a transmission structure with the rotating rod (1002) through the adjusting rod (1004).
7. The valve body casting device according to claim 5, wherein the transmission hulling mechanism (11) comprises a side plate (1101) inside, a connecting rod (1102) is fixedly installed on one side of the side plate (1101), a second return spring (1103) is sleeved on the outer wall of the connecting rod (1102), a connecting block (1104) is fixedly installed on the other side of the connecting rod (1102), a first sliding block (1105) is fixedly connected to the bottom end of the connecting block (1104), a first sliding chute (1106) is slidably installed on the bottom end of the first sliding block (1105), the first sliding chute (1106) is formed in the top of the top plate (1), a second bearing (1107) is installed inside the connecting block (1104), the second bearing (1107) is sleeved on the outer wall of the vertical rod (9), a first gear disc (1108) is fixedly connected to the outer wall of the vertical rod (9), and the first gear disc (1108) is installed inside the top plate (1), one side meshing of first toothed disc (1108) is connected with second toothed disc (1109), and the inner wall of second toothed disc (1109) rotates and installs third bearing (1110) to third bearing (1110) are established at the outer wall cover of bull stick (1002), the top fixedly connected with fixed plate (1111) of roof (1), and one side fixed mounting of fixed plate (1111) has third reset spring (1112), the opposite side fixedly connected with U type pole (1113) of third reset spring (1112), and the outer wall connection of U type pole (1113) has fourth bearing (1114), and fourth bearing (1114) are installed at the top of fixed plate (1111).
8. A valve body casting device according to claim 7, characterized in that the connecting block (1104) forms a sliding structure with the top plate (1) through the first sliding block (1105), the first sliding groove (1106) and a transmission structure with the connecting block (1104) through the second bearing (1107), the vertical rod (9) and the first gear disc (1108).
9. The valve body casting device according to claim 5, wherein a second sliding groove (1201) is formed in the inner portion of the clamping mechanism (12), the second sliding groove (1201) is formed in the partition plate (3), a second sliding block (1202) is connected to the bottom end of the second sliding groove (1201) in a sliding mode, a vertical plate (1203) is fixedly installed at the bottom end of the second sliding block (1202), a transverse plate (1204) is fixedly connected to one side of the vertical plate (1203), a hand-screwing screw rod (1205) is installed on the inner thread of the transverse plate (1204), a clamping block (1206) is connected to one side of the hand-screwing screw rod (1205), and a fourth reset spring (1207) is fixedly installed on one side of the vertical plate (1203).
10. The valve body casting device according to claim 9, wherein the vertical plate (1203) forms a sliding structure with the partition plate (3) through the second sliding block (1202), the second sliding chute (1201), and the vertical plate (1203) and the horizontal plate (1204) are vertically distributed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054675A (en) * | 2021-11-20 | 2022-02-18 | 和县科嘉阀门铸造有限公司 | Casting process method of cast steel valve body |
| CN115090835A (en) * | 2022-06-22 | 2022-09-23 | 曹涛 | Precise casting process of hardware casting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264139A (en) * | 2013-05-23 | 2013-08-28 | 江苏久联冶金机械制造有限公司 | Water glass and silica solution composite shell manufacturing method |
| CN106345970A (en) * | 2016-08-29 | 2017-01-25 | 山西宇达青铜文化艺术股份有限公司 | Art casting silica sol and water glass compound shell making technique |
| CN107350755A (en) * | 2016-12-27 | 2017-11-17 | 张浩为 | A kind of flowmeter acieral rotary blade rapid shaping and Surface hardened layer corrosion resistant technique |
| CN109530665A (en) * | 2018-12-24 | 2019-03-29 | 湖南省金峰机械科技有限公司 | A kind of farm machinery parts pouring device |
| CN109773122A (en) * | 2019-02-19 | 2019-05-21 | 大成（常熟）机械有限公司 | A kind of production technology and valve castings of the model casting of valve castings |
| CN112589049A (en) * | 2020-12-10 | 2021-04-02 | 柳州智云科技有限公司 | Precision casting process based on 3D printing pattern |
| CN113000788A (en) * | 2019-12-20 | 2021-06-22 | 丹东大王精铸有限公司 | Shell manufacturing method of low-cost composite shell |
-
2021
- 2021-07-27 CN CN202110848917.7A patent/CN113560491A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264139A (en) * | 2013-05-23 | 2013-08-28 | 江苏久联冶金机械制造有限公司 | Water glass and silica solution composite shell manufacturing method |
| CN106345970A (en) * | 2016-08-29 | 2017-01-25 | 山西宇达青铜文化艺术股份有限公司 | Art casting silica sol and water glass compound shell making technique |
| CN107350755A (en) * | 2016-12-27 | 2017-11-17 | 张浩为 | A kind of flowmeter acieral rotary blade rapid shaping and Surface hardened layer corrosion resistant technique |
| CN109530665A (en) * | 2018-12-24 | 2019-03-29 | 湖南省金峰机械科技有限公司 | A kind of farm machinery parts pouring device |
| CN109773122A (en) * | 2019-02-19 | 2019-05-21 | 大成（常熟）机械有限公司 | A kind of production technology and valve castings of the model casting of valve castings |
| CN113000788A (en) * | 2019-12-20 | 2021-06-22 | 丹东大王精铸有限公司 | Shell manufacturing method of low-cost composite shell |
| CN112589049A (en) * | 2020-12-10 | 2021-04-02 | 柳州智云科技有限公司 | Precision casting process based on 3D printing pattern |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054675A (en) * | 2021-11-20 | 2022-02-18 | 和县科嘉阀门铸造有限公司 | Casting process method of cast steel valve body |
| CN115090835A (en) * | 2022-06-22 | 2022-09-23 | 曹涛 | Precise casting process of hardware casting |
| CN115090835B (en) * | 2022-06-22 | 2023-12-29 | 繁峙县志高矿山机械有限责任公司 | Precise casting process of hardware castings |
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Application publication date: 20211029 |