CN112479569A - Feeding device for quartz sand molding - Google Patents
Feeding device for quartz sand molding Download PDFInfo
- Publication number
- CN112479569A CN112479569A CN202011489703.7A CN202011489703A CN112479569A CN 112479569 A CN112479569 A CN 112479569A CN 202011489703 A CN202011489703 A CN 202011489703A CN 112479569 A CN112479569 A CN 112479569A
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- quartz sand
- feeding device
- rotating shaft
- sand molding
- carousel
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
- C03B19/066—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction for the production of quartz or fused silica articles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B20/00—Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention relates to a feeding device for quartz sand molding, which comprises a rotary screen subassembly and a feeding pipe, wherein the rotary screen subassembly comprises a rotating shaft, a rotating shaft fixing frame, a turntable and a large-particle receiving disc, the rotating shaft is arranged in the rotating shaft fixing frame, the lower end of the rotating shaft is fixedly arranged with the turntable, the large-particle receiving disc is arranged below the turntable, the area of the large-particle receiving disc is larger than that of the turntable, quartz sand falls on the rotating turntable through the feeding pipe, the turntable throws out the falling high-purity artificially synthesized quartz sand, 80 to 90 percent of the fine-particle quartz sand can be molded on the inner surface of a rotating mold, the falling large-particle quartz sand falls in the large-particle receiving disc, after molding is finished, the feeding device for quartz sand molding is taken out of the mold and simultaneously cleans the large-particle quartz sand along the feeding device, a quartz crucible is further manufactured, and the quality of the R part of a transparent, the wire breakage phenomenon in the crystal pulling process is reduced, and the service life of the crucible is prolonged.
Description
Technical Field
The invention relates to the technical field of quartz crucible production, in particular to a feeding device for quartz sand molding.
Technical Field
The semiconductor grade quartz glass crucible is required to have high purity, and in order to reduce the cost and ensure the purity of the quartz crucible, a composite quartz crucible is generally adopted. The quartz sand outside the composite quartz crucible is high-purity natural quartz sand, but the inner surface for containing the silicon liquid is high-purity artificially synthesized quartz sand. Firstly, high-purity natural quartz sand is added into a mold, the mold is rotated and molded by a molding rod, and then the high-purity artificially synthesized quartz sand is added for secondary molding, but because the granularity of the quartz sand is dispersive, the quartz sand with large granularity is accelerated and easy to splash and fall to a large R part of the crucible, the granularity of the quartz sand distributed at the R part is large, the quartz sand with large granularity melts slowly, bubbles are easy to gather at the R part of the crucible in the process of pulling the quartz crucible for 80 hours (as shown in figure 1), the gathering of the bubbles easily causes wire breakage of the crystal pulling, and the yield of the crystal pulling is reduced.
Disclosure of Invention
The invention mainly aims to provide a feeding device for quartz sand molding, which improves the quality of a transparent layer at an R part on the inner surface of a quartz crucible.
The utility model provides a feeding device for quartz sand shaping, including rotary screen subassembly and filling tube, the rotary screen subassembly includes the pivot, the pivot mount, carousel and large granule take-up (stock) pan, the pivot is installed in the pivot mount and the lower extreme and the carousel fixed mounting of pivot, large granule take-up (stock) pan just is located the below of carousel with pivot mount fixed connection, the area of large granule take-up (stock) pan is greater than the area of carousel, the filling tube includes charge door and discharge gate, the discharge gate of filling tube is located the top of carousel and falls on the carousel from the quartz sand that the discharge gate falls down is whole.
Preferably, large granule take-up (stock) pan includes diapire and flange, and the flange encloses to be established on the diapire, and the flange includes one section high flange and one section low flange, and one section of low flange is close to the filling tube setting.
Preferably, the bottom wall provided with the low flange is provided with an arc-shaped extending part outwards, the low flange is arranged around the edge of the arc-shaped extending part, the roughness of the upper side surface of the rotary table ranges from Ra6.0 to Ra 10.0, and the rotating speed of the rotary table ranges from 800 to 1200 revolutions per minute.
Preferably, feeding device for the quartz sand shaping includes large granule take-up (stock) pan fixed bolster, and large granule take-up pan fixed bolster lower extreme and large granule take-up pan are connected, and the upper end and the pivot mount of large granule take-up pan fixed bolster are connected.
Preferably, large granule take-up (stock) pan fixed bolster includes the collet, two piece at least connecting screw and angular adjustment clamp splice, collet and large granule take-up (stock) pan fixed connection, every connecting screw's lower extreme is installed on the collet, every connecting screw's upper end is installed on the angular adjustment clamp splice, angular adjustment clamp splice center is equipped with the third fixed open mouth, the angular adjustment clamp splice is put on the pivot mount through the third fixed open mouth cover, be equipped with on the side of angular adjustment clamp splice with the first locating hole of third fixed open mouth vertically, install positioning bolt in the first locating hole.
Preferably, the angle adjustment clamp splice outwards sets up a plurality of extension arms, and extension arm quantity equals with the quantity of connecting screw rod.
Preferably, the collet is ring shape, the diameter of the annular collet hole of circle is greater than the diameter of carousel, collet external dimension is less than the size of diapire simultaneously, be equipped with a plurality of second locating holes on the collet, be equipped with multiunit location regulation hole on the diapire, with collet and diapire fixed connection after every connecting screw's lower extreme passes the second locating hole of collet and the location regulation hole of diapire, different location regulation hole can with connecting screw's lower extreme fixed connection, change the low flange and install towards different positions.
Preferably, feeding device for quartz sand shaping includes the filling tube fixed bolster, and the one end of filling tube fixed bolster is installed on the pivot mount, and the other end of filling tube fixed bolster is installed on the filling tube.
Preferably, the charging tube fixed bolster includes right grip block, left grip block, the bolt of being in the same place right grip block and left grip block assembly, and right grip block and left grip block form first fixed opening and the fixed opening of second by bolt fastening back, and first fixed opening cover is put on the pivot mount, and the fixed opening cover of second is put on the charging tube, and fastening bolt presss from both sides right grip block and left grip block and embraces on charging tube and pivot mount.
Preferably, the rotating shaft fixing frame is a sleeve, the rotating shaft is installed in the sleeve, and the lower end of the rotating shaft extends out of the sleeve and then is installed with the turntable.
Among the above-mentioned feeding device for quartz sand shaping, high-purity synthetic quartz sand drops on rotatory carousel after getting into through the charge door of filling tube, rotatory back with predetermined rotational speed through the carousel that has predetermined roughness will drop the high-purity synthetic quartz sand on the carousel and throw away, 80% to 90% fine grain's quartz sand can the shaping rotatory mould internal surface, the large granule quartz sand that drops in the large granule take-up (stock) pan, after the shaping, clear up the quartz sand of large granule along the band with feeding in raw material to the quartz sand shaping with putting taking out from the mould, and then make quartz crucible, make the quality at quartz crucible internal surface stratum lucidum position obtain the improvement, reduce the broken string phenomenon at crystal pulling in-process, the life of crucible has been increased simultaneously.
Drawings
FIG. 1 is a photograph of an inspection after pulling of a quartz crucible produced by the prior art.
FIG. 2 is a perspective view of a charging device for molding quartz sand.
Fig. 3 is a front view of fig. 2.
FIG. 4 is a perspective view of the fixing bracket of the feeding tube of the present invention.
Fig. 5 is a bottom view of fig. 2.
Fig. 6 is a perspective view of the angle adjustment block of the present invention.
FIG. 7 is a photograph showing the measurements after pulling the quartz crucible according to the present invention.
In the figure: the feeding device 100 for quartz sand molding, the rotary screen subassembly 10, a rotating shaft 11, a rotating shaft fixing frame 12, a rotating disc 13, a large particle receiving disc 14, a bottom wall 141, an arc-shaped extension part 1411, a positioning adjusting hole 1412, a flange 142, a high flange 143, a low flange 144, a feeding tube fixing support 15, a right clamping block 151, a left clamping block 152, a bolt 153, a first fixing opening 154, a second fixing opening 155, a large particle receiving disc fixing support 16, a bottom support 161, a second positioning hole 1611, a connecting screw 162, an angle adjusting clamping block 163, a third fixing opening 1631, a first positioning hole 1632, a positioning bolt 1633, an extension arm 1634, a feeding tube 20, a feeding port 21 and a discharging port 22.
Detailed Description
The technical solutions and effects of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings of the present invention.
Referring to fig. 2, feeding device 100 for quartz sand molding includes rotary screen subassembly 10 and filling tube 20, rotary screen subassembly 10 includes pivot 11, pivot mount 12, carousel 13 and large granule take-up pan 14, pivot 11 is installed in pivot mount 12 and the lower extreme of pivot 11 and carousel 13 fixed mounting, large granule take-up pan 14 is installed in the below of carousel 13, the area of large granule take-up pan 14 is greater than the area of carousel 13, large granule take-up pan 14 includes diapire 141 and flange 142, flange 142 includes one section high flange 143 and one section low flange 144, one section of low flange 144 is close to the setting of filling tube 20. The portion of the bottom wall 141 provided with the low flange 144 is outwardly provided with an arc-shaped extending portion 1411, the low flange 144 is enclosed on the edge of the arc-shaped extending portion 1411, referring to fig. 3, the feeding tube 20 comprises a feeding port 21 and a discharging port 22, the discharging port 22 of the feeding tube 20 is located above the rotating disk 11, and the high-purity synthetic quartz sand falling from the discharging port 22 falls on the rotating disk 11. The roughness of the last side of carousel 13 is between Ra6.0 to Ra 10.0, in the in-process of adding synthetic high-purity quartz sand, the rotational speed of carousel 13 is 800 to 1200 revolutions per minute, quartz sand descends to carousel 20 through filling tube 20 on, throw away quartz sand through carousel 20, in the in-process of throwing away quartz sand, great quartz sand granule falls into large granule take-up (stock) pan 14, tiny quartz sand is thrown to in the mould, because the rotational speed of carousel 13 is certain, the setting through arc extension 1411 is collected more large granule quartz sand in large granule take-up (stock) pan 14, ensure that the quartz sand of tiny granule falls into the shaping in the mould, promote the quality of the diaphanous layer in quartz crucible R position.
Referring to fig. 2, the feeding device 100 for forming quartz sand includes a feeding tube fixing support 15, one end of the feeding tube fixing support 15 is installed on the rotating shaft fixing support 12, and the other end of the feeding tube fixing support 15 is installed on the feeding tube 20, referring to fig. 4, the feeding tube fixing support 15 includes a right clamping block 151, a left clamping block 152, and a bolt 153 for assembling the right clamping block 151 and the left clamping block 152 together, the right clamping block 151 and the left clamping block 152 are fixed by the bolt 153 to form a first fixing opening 154 and a second fixing opening 155, with reference to fig. 2 and 4, the first fixing opening 154 is sleeved on the rotating shaft fixing support 12, the second fixing opening 155 is sleeved on the feeding tube 20, and the right clamping block 151 and the left clamping block 152 are clamped on the feeding tube 20 and the rotating shaft fixing support 12 by the fastening bolt 153. The rotating shaft fixing frame 12 is a sleeve, the rotating shaft 11 is installed in the rotating shaft fixing frame 12, and the lower end of the rotating shaft 11 extends out of the rotating shaft fixing frame 12 and then is installed with the rotating disc 13.
Referring to fig. 2 and 3, the feeding device 100 for quartz sand molding further includes a large-particle receiving tray fixing bracket 16, the lower end of the large-particle receiving tray fixing bracket 16 is connected to the large-particle receiving tray 14, and the upper end of the large-particle receiving tray fixing bracket 16 is connected to the rotating shaft fixing bracket 12. Big granule take-up pan fixed bolster 16 includes collet 161, two piece at least connecting screw 162 and angular adjustment clamp splice 163, 14 fixed connection of collet 161 and big granule take-up pan, the lower extreme of every connecting screw 162 is installed on collet 161, the upper end of every connecting screw 162 is installed on angular adjustment clamp splice 163, refer to fig. 5, angular adjustment clamp splice 163 center is equipped with third fixed opening 1631, angular adjustment clamp splice 163 is put on pivot mount 12 through third fixed opening 1631 cover, be equipped with on the side of angular adjustment clamp splice 163 with third fixed opening 1631 vertically first locating hole 1632, install positioning bolt 1633 in first locating hole 1632, angular adjustment clamp splice 163 outwards sets up a plurality of extension arms 1634, extension arm 1634 quantity equals with connecting screw 162's quantity.
Referring to fig. 2, the bottom support 161 is circular, the diameter of the inner hole of the circular bottom support 161 is larger than that of the rotating disc 13, the outer dimension of the bottom support 161 is smaller than that of the bottom wall 141, the bottom support 161 is provided with a plurality of second positioning holes 1611, referring to fig. 6, the bottom wall 141 is provided with a plurality of groups of positioning adjusting holes 1412, the lower end of each connecting screw 162 penetrates through the second positioning holes 1611 of the bottom support 161 and the positioning adjusting holes 1412 of the bottom wall 141 to fixedly connect the bottom support 161 and the bottom wall 141, different positioning adjusting holes 1412 can be fixedly connected with the lower ends of the connecting screws 162, so that the lower blocking edge 144 can be installed towards different positions, and large-particle quartz sand can be effectively collected in.
In the above-mentioned feeding device 100 for quartz sand shaping, high-purity synthetic quartz sand drops on rotatory carousel 13 after getting into through charge door 21 of filling tube 20, it throws away the high-purity synthetic quartz sand that drops on carousel 13 after rotatory through carousel 13 that has certain roughness, 80% to 90% quartz sand can the shaping rotatory mould internal surface, the large granule quartz sand that drops in large granule take-up (stock) pan 14, after the shaping, quartz sand shaping is cleared up out with feeding device 100 along with the quartz sand of taking the large granule out of mould in the same time, and then the quartz crucible who makes reduces the bubble at crucible R position, reduce the broken string of crucible in the crystal pulling process, improve quartz crucible internal surface bubble quality. Referring to fig. 7, in order to obtain a quartz crucible using the feeding device 100 for quartz sand molding, the accumulation degree of the bubbles obtained by detecting the R part after pulling the quartz crucible for 200 hours is lower than that obtained by detecting the quartz crucible produced in the prior art after pulling the quartz crucible for 80 hours (see fig. 1), so that the service life of the quartz crucible is prolonged, and the yield of pulling is improved.
Claims (10)
1. The utility model provides a feeding device for quartz sand shaping, a serial communication port, including rotary screen subassembly and filling tube, the rotary screen subassembly includes the pivot, the pivot mount, carousel and large granule take-up reel, the pivot is installed in the pivot mount and the lower extreme and the carousel fixed mounting of pivot, large granule take-up reel and pivot mount fixed connection just are located the below of carousel, the area of large granule take-up reel is greater than the area of carousel, the filling tube includes charge door and discharge gate, the discharge gate of filling tube is located the top of carousel and falls on the carousel from the quartz sand that the discharge gate falls down is whole.
2. A feeding device for quartz sand molding according to claim 1, wherein the large-particle receiving tray comprises a bottom wall and a rib, the rib is arranged around the bottom wall, the rib comprises a section of high rib and a section of low rib, and a section of the low rib is arranged near the feeding tube.
3. A charging device for quartz sand molding according to claim 2, wherein the bottom wall provided with the low skirt is provided with an arc-shaped extension portion outward, the low skirt is provided around the edge of the arc-shaped extension portion, the roughness of the upper side surface of the turntable is between Ra6.0 and Ra 10.0, and the rotation speed of the turntable is 800 to 1200 revolutions per minute.
4. A feeding device for quartz sand molding according to claim 3, wherein the feeding device for quartz sand molding comprises a large-particle receiving tray fixing bracket, the lower end of the large-particle receiving tray fixing bracket is connected with a large-particle receiving tray, and the upper end of the large-particle receiving tray fixing bracket is connected with the rotating shaft fixing bracket.
5. A feeding device for quartz sand molding according to claim 4, characterized in that the large particle receiving tray fixing bracket comprises a base support, at least two connecting screw rods and an angle adjusting clamp block, the base support is fixedly connected with the large particle receiving tray, the lower end of each connecting screw rod is arranged on the base support, the upper end of each connecting screw rod is arranged on the angle adjusting clamp block, the center of the angle adjusting clamp block is provided with a third fixing opening, the angle adjusting clamp block is sleeved on the rotating shaft fixing support through the third fixing opening, the side surface of the angle adjusting clamp block is provided with a first positioning hole perpendicular to the third fixing opening, and a positioning bolt is arranged in the first positioning hole.
6. A charging device for quartz sand molding as defined in claim 5, wherein the angle-adjusting clamp blocks are provided outwardly with a plurality of extension arms equal in number to the number of the connection screws.
7. A feeding device as claimed in claim 6, wherein the base is circular, the inner hole of the circular base has a diameter larger than that of the rotary plate, the outer dimension of the base is smaller than that of the bottom wall, the base is provided with a plurality of second positioning holes, the bottom wall is provided with a plurality of sets of positioning adjustment holes, the lower end of each connecting screw passes through the second positioning holes of the base and the positioning adjustment holes of the bottom wall to fixedly connect the base and the bottom wall, and different positioning adjustment holes can be fixedly connected with the lower ends of the connecting screws to change the installation of the lower flange towards different positions.
8. A feeding device for quartz sand molding according to claim 7, wherein the feeding device for quartz sand molding comprises a feeding tube fixing bracket, one end of the feeding tube fixing bracket is mounted on the rotating shaft fixing bracket, and the other end of the feeding tube fixing bracket is mounted on the feeding tube.
9. A feeding device for quartz sand molding according to claim 8, wherein the feeding tube fixing bracket comprises a right clamping block, a left clamping block, and a bolt for assembling the right clamping block and the left clamping block together, the right clamping block and the left clamping block are fixed by the bolt to form a first fixing opening and a second fixing opening, the first fixing opening is sleeved on the rotating shaft fixing frame, the second fixing opening is sleeved on the feeding tube, and the fastening bolt clamps the right clamping block and the left clamping block on the feeding tube and the rotating shaft fixing frame.
10. A feeding device for quartz sand molding as defined in claim 9, wherein the shaft holder is a sleeve, the shaft is mounted in the sleeve and the lower end of the shaft extends out of the sleeve and is mounted with the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489703.7A CN112479569B (en) | 2020-12-16 | 2020-12-16 | Feeding device for quartz sand molding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011489703.7A CN112479569B (en) | 2020-12-16 | 2020-12-16 | Feeding device for quartz sand molding |
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| CN112479569A true CN112479569A (en) | 2021-03-12 |
| CN112479569B CN112479569B (en) | 2021-10-08 |
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| CN202011489703.7A Active CN112479569B (en) | 2020-12-16 | 2020-12-16 | Feeding device for quartz sand molding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540519A (en) * | 2022-04-11 | 2022-12-30 | 徐州百惠模具制造有限公司 | Molding sand treatment device for mold production and environment-friendly treatment method |
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| CN112479569B (en) | 2021-10-08 |
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