CN202388638U - Device for cutting seed crystals by multiple wire electrodes - Google Patents
Device for cutting seed crystals by multiple wire electrodes Download PDFInfo
- Publication number
- CN202388638U CN202388638U CN 201120551723 CN201120551723U CN202388638U CN 202388638 U CN202388638 U CN 202388638U CN 201120551723 CN201120551723 CN 201120551723 CN 201120551723 U CN201120551723 U CN 201120551723U CN 202388638 U CN202388638 U CN 202388638U
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- guide wheel
- cutting
- wire spool
- spacing
- wire
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- Expired - Fee Related
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model provides a device for cutting seed crystals by multiple wire electrodes. The device comprises a wire spool arranged on the lower part in a device cutting room, and a workpiece plate, wherein a guide wheel is arranged on the upper part in the cutting room, the groove spacing of the guide wheel and the spool spacing of the wire spool are 20mm to 30mm, the cutting wire is arranged on the guide wheel and the shaft surface of the wire spool, the workpiece plate is placed on a device platform; and plane grooves with the width of 10mm and the spacing of 30mm to 35mm are arranged on the front of the workpiece plate. The device has a simple and stable structure, and is simple in reconstruction because a pulley is replaced by a guide wheel through increasing the quantity of the wire spool on the traditional ingot breaking machine, so that the planeness of the end surfaces of the seed crystals is improved, the processing cycle is reduced, the use ratio of a silicon stick is increased, and the production cost is reduced.
Description
Technical field
The utility model relates to the equipment in a kind of manufacture of solar cells, particularly before the foundry monocrystal silicon, cuts the equipment of seed crystal.
Background technology
Along with the extensive use of solar-energy photo-voltaic cell, crystal silicon material wilderness demand, expert in the industry and scholar have developed the foundry monocrystalline.Type single crystal casting be with monocrystalline as seed crystal, be positioned over crucible bottom, polycrystalline silicon material and boron foundry alloy are positioned on the seed crystal.Charged crucible is positioned in the ingot furnace type of casting out monocrystal silicon.Compare the operation of one seed crystal processing that type monocrystalline ingot casting is many with conventional polycrystalline silicon ingot casting.Needing silicon single crystal rod is cut into area is 156mm * 156mm, and height is the silico briquette of 20～30mm, is positioned over crucible bottom, as the seed crystal of foundry monocrystalline.At present, the processing mode of seed crystal mainly is to adopt the band saw cutting, and cutting a seed crystal needs 12 minutes, produces 25 seed crystals that an ingot casting needs, and needs 5 hours altogether.Because band saw cutting needs manual work adjustment, and what uses is the diamond saw blade of thickness as 0.5mm, and the knife edge that cutting produces is with a toll of 1mm, and the end face flatness that the while band saw cuts is low, causes uneven distribution easily.This mode of production exists: seed crystal processing consuming time many, production cost is high, the silicon rod loss is big, and the cut end surface evenness is poor.
The utility model content
The purpose of the utility model is to provide a kind of device of multi-thread cutting seed crystal, improves the seed crystal qualification rate, shortens the process-cycle, improves the silicon rod utilization rate, reduces production costs.
The technical scheme of the utility model is: a kind of device of multi-thread cutting seed crystal; Comprise the wire spool, the work plate that are arranged on bottom in the equipment cutting chamber; Wherein guide wheel is arranged on the top in the cutting chamber; The dish spacing of the separation of said guide wheel and said wire spool is 20～30mm, and line of cut is laid on the axial plane of said guide wheel and said wire spool, and work plate is placed on the equipment workbench.
It is 10mm that the front of said work plate is provided with width, and spacing is the straight groove of 30～35mm.
The utility model increases the quantity of bottom wire spool in the cutting chamber on existing broken ingot machine, replace the pulley of existing cutting chamber internal upper part with guide wheel.Because the cut quality of broken ingot machine is stable, therefore effectively controlled the end face flatness of seed crystal piece.Adopt steel wire to drive mortar simultaneously and cut, reduce the loss of silicon rod.Therefore the utility model is simple in structure, reliable, has improved the seed crystal qualification rate, has improved the silicon rod utilization rate, and the process-cycle is shortened in multi-thread cutting, has improved production efficiency.
Description of drawings
Fig. 1 is the utility model cutting chamber inner structure sketch map;
Fig. 2 is that the structure master of the work plate of the utility model looks sketch map;
Among the figure: 1-wire spool, 2-guide wheel, 3-work plate, 4-groove.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
Like Fig. 1,2; The device of a kind of multi-thread cutting seed crystal that the utility model provides; Comprise the wire spool 1, line of cut, the work plate 3 that are arranged on bottom in the equipment cutting chamber, wherein guide wheel 2 is arranged on the top in the cutting chamber, and the dish spacing of the separation of said guide wheel 2 and said wire spool 1 is 20～30mm; Line of cut is laid on the axial plane of said guide wheel 2 and said wire spool 1, and work plate 3 is placed on the equipment workbench; It is 10mm that the front of said work plate is provided with width, and spacing is the straight groove 4 of 30～35mm.The device of this multi-thread cutting seed crystal, cutting process do not need artificial adjustment size, once cut polylith, the end face good planeness.Adopt the 0.3mm steel wire to drive mortar and carry out multi-thread cutting, reduce the loss of silicon rod, enhance productivity.Work plate 3 is provided with groove 4, in the cutting process steel wire with silicon ingot cut wear after, can defective work piece plate 3, can reuse, save production cost.
The utility model is transformed on existing broken ingot machine, increases the quantity of the interior bottom of the cutting chamber wire spool of broken ingot machine, dish spacing to the 20～30mm of reduction wire spool; Replacing the existing pulley that breaks the ingot its upper side with guide wheel, the dish pitch match of the separation and the wire spool of guide wheel is set, also is 20～30mm.Because the cut quality of broken ingot machine is stable, therefore effectively controlled the end face flatness of seed crystal piece.Adopt the steel wire that disposes on the broken ingot machine to drive mortar simultaneously and carry out multi-thread cutting.
The utility model is simple in structure, reliable, on existing broken ingot machine, only needs to increase the quantity of wire spool, replaces pulley with guide wheel, with the wire spool coupling, transforms simple.Utilize the stability of broken ingot machine cut quality, improved the end face flatness of seed crystal piece.Adopt steel wire to drive mortar simultaneously and cut, improved production efficiency, reduced the loss of silicon rod simultaneously, reduced production cost.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (2)
1. the device of a multi-thread cutting seed crystal; Comprise the wire spool (1), line of cut, the work plate (3) that are arranged on bottom in the equipment cutting chamber; It is characterized in that: guide wheel (2) is arranged on the top in the cutting chamber; The dish spacing of the separation of said guide wheel (2) and said wire spool (1) is 20～30mm, and line of cut is laid on the axial plane of said guide wheel (2) and said wire spool (1), and work plate (3) is placed on the equipment workbench.
2. the device of multi-thread cutting seed crystal according to claim 1 is characterized in that: it is 10mm that the front of said work plate (3) is provided with width, and spacing is the straight groove of 30～35mm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551723 CN202388638U (en) | 2011-12-26 | 2011-12-26 | Device for cutting seed crystals by multiple wire electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120551723 CN202388638U (en) | 2011-12-26 | 2011-12-26 | Device for cutting seed crystals by multiple wire electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388638U true CN202388638U (en) | 2012-08-22 |
Family
ID=46663588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120551723 Expired - Fee Related CN202388638U (en) | 2011-12-26 | 2011-12-26 | Device for cutting seed crystals by multiple wire electrodes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144208A (en) * | 2013-02-17 | 2013-06-12 | 英利集团有限公司 | Fretsaw cutting method |
| CN110802754A (en) * | 2019-09-29 | 2020-02-18 | 扬州荣德新能源科技有限公司 | Adjustable guide wheel cutting method for cast single crystal |
-
2011
- 2011-12-26 CN CN 201120551723 patent/CN202388638U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144208A (en) * | 2013-02-17 | 2013-06-12 | 英利集团有限公司 | Fretsaw cutting method |
| CN110802754A (en) * | 2019-09-29 | 2020-02-18 | 扬州荣德新能源科技有限公司 | Adjustable guide wheel cutting method for cast single crystal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |