CN202878511U - Multiline cutting machine - Google Patents
Multiline cutting machine Download PDFInfo
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- CN202878511U CN202878511U CN 201220340475 CN201220340475U CN202878511U CN 202878511 U CN202878511 U CN 202878511U CN 201220340475 CN201220340475 CN 201220340475 CN 201220340475 U CN201220340475 U CN 201220340475U CN 202878511 U CN202878511 U CN 202878511U
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- cutting machine
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- metal wire
- frame
- line cutting
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Abstract
The utility model discloses a multiline cutting machine which is capable of cutting seed crystals for a pseudo-single crystal. The multiline cutting machine comprises a rack, metal wires and two line rollers arranged in parallel on the rack. A plurality of circular slots are arranged on the surfaces of the line rollers, the metal wires are arranged inside the circular slots, wind over two line rollers in sequence and are tightened, and a guide mechanism used for changing moving direction of the metal wires is arranged between the two line rollers. Due to the fact that the guide mechanism used for changing the moving direction of the metal lines is arranged between the two line rollers, the moving direction of the line rollers can be influenced through the guide mechanism easily, and a distance between two metal wires are enabled to be 15mm - 50mm, at the same time no influence is caused to the circular slots, and the multiline cutting machine is enabled to be capable of cutting the seed crystals for the pseudo-single crystal. The multiline cutting machine is suitable for being popularized in and applied to the field of cutting equipment.
Description
Technical field
The utility model relates to the cutting equipment field, and is especially a kind of be used to cutting the multi-line cutting machine of accurate monocrystalline with seed crystal.
Background technology
Accurate monocrystalline is based on the technique of polycrystalline cast ingot, uses single crystal seed by part when long crystalline substance, obtains the polysilicon chip of outward appearance and the equal single crystal-like of electrical property.This mode by ingot casting forms the technology of monocrystalline silicon, and its power consumption only Duos 5% than common polysilicon, and the quality of the monocrystalline silicon of producing is near pulling of silicon single crystal.As everyone knows, on the utilization rate of battery component, the silicon rod of pulling of silicon single crystal is cylindric, the photovoltaic cell of making need will cut away all around, the battery component yield rate that forms is about 50%, comparatively speaking, the quasi-monocrystalline silicon ingot casting is square ingot casting, and the section of making cell piece also is that the right angle is square, the battery component yield rate that forms is about 65%, consider from the photovoltaic cell totle drilling cost, at the silicon raw material, section, under the certain prerequisite of other costs such as assembly, the cost of whole production chain can reduce by 10% because of the quasi-monocrystalline silicon ingot casting technology, and, compared to polycrystalline, the quasi-monocrystalline silicon crystal boundary is few, and dislocation density is low; Conversion efficiency of solar cell is compared with monocrystalline silicon piece up to more than 18.2%, and the photo attenuation of accurate single crystal battery is low, approximately 1/4-1/2; In addition, it is large that the quasi-monocrystalline silicon casting ingot process is thrown furnace charge, and production efficiency is high.
Accurate monocrystalline mainly contains two kinds of ingot casting technologies:
(1) without the seed crystal ingot casting, without seed crystal guiding casting ingot process nucleus initial stage growth control is crossed range request very high.Concrete grammar is the crucible that uses bottom slot, the size that thermograde when the main points of this mode are accurate control directional solidification and rate of crystalline growth improve poly grains, the size of groove and cooling velocity have determined the size of crystal grain, groove helps to increase crystal grain, because need the parameter of control too many, seem particularly difficult without the seed crystal casting ingot process, the size that thermograde when its main points are accurate control directional solidification and rate of crystalline growth improve poly grains forms so-called accurate monocrystalline.
(2) the seed crystal ingot casting is arranged, this technology is placed on seed crystal, silicon material doped chemical in the crucible first, seed crystal generally is positioned at crucible bottom, heating and melting silicon material again, and keep seed crystal not melted away fully, at last control cooling, the thermograde of regulating solid liquid phase guarantees that monocrystalline begins growth from the seed crystal position.
In photovoltaic industry, the general selection of most enterprises has the seed crystal ingot casting technology to produce accurate monocrystalline, employed seed crystal is a kind of small crystals that has with the identical crystal orientation of required crystal in the seed crystal casting ingot process is arranged, seed crystal generally adopts vertical pulling method to obtain, the general volume of seed crystal that adopts vertical pulling method to make is larger, could use after usually seed crystal need to being cut into the seed crystal blocks that thickness is 15～50mm.
At present, employed multi-line cutting machine comprises frame, steel wire and two line rollers that are set in parallel on the frame, line roller surface is provided with a plurality of annular wire casings, steel wire is arranged in the annular wire casing and successively walks around two line rollers and tighten, the spacing of the annular wire casing of existing multi-line cutting machine is generally 0.345mm, and required seed crystal thickness is generally 15～50mm, if adopt existing multi-line cutting machine to cut accurate monocrystalline seed crystal, just must change the trend of steel wire, thereby the spacing between the expansion steel wire, because the degree of depth of annular wire casing is less, if directly change the trend of steel wire, makes the spacing of steel wire reach 15～50mm, steel wire applies active force will for the cell wall of annular wire casing, and steel wire is in cutting process, and the power that steel wire bears is larger, generally about 9500N, under larger pulling force effect, be easy to annular wire casing is destroyed, cause multi-line cutting machine to use, therefore, existing multi-line cutting machine is to cut accurate monocrystalline seed crystal.
The utility model content
Technical problem to be solved in the utility model provides a kind of multi-line cutting machine that can cut accurate monocrystalline usefulness seed crystal.
The technical scheme that its technical problem that solves the utility model adopts is: this multi-line cutting machine, comprise frame, metal wire and two line rollers that are set in parallel on the frame, line roller surface is provided with a plurality of annular wire casings, metal wire is arranged in the annular wire casing and successively walks around two line rollers and tighten, and is provided with between described two line rollers for the guiding mechanism that changes the metal wire trend.
Further be, described guiding mechanism comprises the fixed head that is fixed on the frame, is arranged with a plurality of directive wheels on the fixed head in parallel.
Further be the uniform arrangement of axial direction of described a plurality of directive wheels roller along the line.
Further be that the surface of described directive wheel is provided with wire casing.
Further be that described fixed head is fixed on the frame by demountable structure.
Further be to be provided with the adjusting nut for the adjustment fixing plate position on the described frame.
Further be that the diameter of described metal wire is 0.12mm.
Further be that described metal wire is steel wire.
The beneficial effects of the utility model are: by be provided for changing the guiding mechanism of metal wire trend between two line rollers, can change easily the trend of metal wire by guiding mechanism, make its spacing reach 15～50mm, can not have any impact to annular wire casing simultaneously yet, make multi-line cutting machine can cut accurate monocrystalline seed crystal.
Description of drawings
The structural representation of Fig. 1 the utility model multi-line cutting machine;
The guiding schematic diagram of Fig. 2 the utility model guiding mechanism;
Description of symbols among the figure: frame 1, metal wire 2, line roller 3, annular wire casing 4, guiding mechanism 5, fixed head 51, directive wheel 52, wire casing 53.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, 2, this multi-line cutting machine, comprise frame 1, metal wire 2 and two line rollers 3 that are set in parallel on the frame 1, line roller 3 surfaces are provided with a plurality of annular wire casings 4, metal wire 2 is arranged in the annular wire casing 4 and successively walks around two line rollers 3 and tighten, and is provided with between described two line rollers 3 for the guiding mechanism 5 that changes metal wire 2 trends.By between two line rollers 3, being provided with for the guiding mechanism 5 that changes metal wire 2 trends, can change easily the trend of metal wire 2 by guiding mechanism 5, make its spacing reach 15～50mm, can not have any impact to annular wire casing 4 simultaneously yet, make multi-line cutting machine can cut accurate monocrystalline seed crystal.
In the above-described embodiment, described guiding mechanism 5 can have numerous embodiments, as long as can play the effect of commutation, as preferred mode be: described guiding mechanism 5 comprises the fixed head 51 that is fixed on the frame 1, be arranged with a plurality of directive wheels 52 on the fixed head 51 in parallel, metal wire 2 is walked around the directive wheel 52 of diverse location when line roller 3 belows pass, and then walk around line roller 3 and pass from the top, spacing between the metal wire 2 above can making changes, can freely adjust the spacing of metal wire 2, thereby can cut out the seed crystal blocks of different-thickness, satisfy different clients' demand.Occur intersecting for fear of metal wire 2, the uniform arrangement of axial direction of described a plurality of directive wheel 52 rollers 3 along the line, because directive wheel 52 all is the axial direction setting of roller 3 along the line, the phenomenon that can not occur intersecting after metal wire 2 changed courses can not make metal wire 2 disorderly and unsystematic.Operate steadily after changed course for fear of metal wire 2, do not beat, be provided with wire casing 53 on the surface of directive wheel 52, metal wire 2 is limited in the wire casing 53, avoid metal wire 2 to beat.
Because directive wheel 52 is fixed on the fixed head 51; after metal wire 2 changed courses; sometimes because the position of directive wheel 52 deviation to some extent; so that metal wire 2 applies certain active force for the cell wall of annular wire casing 4; and then with annular wire casing 4 destructions; therefore; for making the cell wall of annular wire casing 4, the position that can adjust directive wheel 52 is not subjected to any active force; protect the cell wall of annular wire casing 4 not to be destroyed; described fixed head 51 is fixed on the frame 1 by demountable structure; can indirectly adjust the position of directive wheel 52 by the position of adjusting fixed head 51; when needs are adjusted the position of directive wheel 52; fixed head 51 is temporarily separated with frame 1; behind the good position to be adjusted, guarantee that the cell wall of annular wire casing 4 is not subjected to any active force, again that fixed head 51 is fixing with frame 1; make directive wheel 52 can realize step-less adjustment, can adjust accurately the spacing between the metal wire 2.Described demountable structure can bolt connects, and the modes such as bearing pin connection are as long as can be fixed on very easily fixed head 51 on the frame 1 and very easily fixed head 51 is separated with frame 1.
For the ease of adjusting the position of directive wheel 52, namely the position of fixed head 51 is provided with the adjusting nut for adjustment fixing plate 51 positions on the described frame 1, by the spacing of adjusting nut between can accurate adjustment metal wire 2.
The diameter of described metal wire 2 is generally the smaller the better, if but the diameter of metal wire 2 is too little, metal wire 2 easily ruptures, therefore, in order to make the diameter of metal wire 2 as much as possible little under the prerequisite that enough tensile strength is arranged at assurance metal wire 2, the diameter of described metal wire 2 is preferably 0.12mm.Further, described metal wire 2 can adopt existing various tensile strength preferably metal make, as preferably: described metal wire 2 is steel wire, and steel wire not only tensile strength is good, and wearability is good, and service life is longer.
Claims (8)
1. multi-line cutting machine, comprise frame (1), metal wire (2) and two line rollers (3) that are set in parallel on the frame (1), line roller (3) surface is provided with a plurality of annular wire casings (4), metal wire (2) is arranged in the annular wire casing (4) and successively walks around two line rollers (3) and tighten, and it is characterized in that: be provided with between described two line rollers (3) for the guiding mechanism (5) that changes metal wire (2) trend.
2. multi-line cutting machine as claimed in claim 1, it is characterized in that: described guiding mechanism (5) comprises the fixed head (51) that is fixed on the frame (1), is arranged with a plurality of directive wheels (52) on the fixed head (51) in parallel.
3. multi-line cutting machine as claimed in claim 2 is characterized in that: the uniform arrangement of axial direction of described a plurality of directive wheels (52) roller (3) along the line.
4. multi-line cutting machine as claimed in claim 3, it is characterized in that: the surface of described directive wheel (52) is provided with wire casing (53).
5. the described multi-line cutting machine of any one claim in 4 according to claim 1, it is characterized in that: described fixed head (51) is fixed on the frame (1) by demountable structure.
6. multi-line cutting machine as claimed in claim 5 is characterized in that: be provided with the adjusting nut for adjustment fixing plate (51) position on the described frame (1).
7. multi-line cutting machine as claimed in claim 1, it is characterized in that: the diameter of described metal wire (2) is 0.12mm.
8. multi-line cutting machine as claimed in claim 2, described metal wire (2) is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340475 CN202878511U (en) | 2012-07-13 | 2012-07-13 | Multiline cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340475 CN202878511U (en) | 2012-07-13 | 2012-07-13 | Multiline cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202878511U true CN202878511U (en) | 2013-04-17 |
Family
ID=48069973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340475 Expired - Fee Related CN202878511U (en) | 2012-07-13 | 2012-07-13 | Multiline cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202878511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000942A (en) * | 2019-05-14 | 2019-07-12 | 玉田县昌通电子有限公司 | A kind of the roller method for winding and its roller winding structure of multi-line cutting machine |
| CN112138820A (en) * | 2020-08-06 | 2020-12-29 | 李军 | Melt-blown fabric processing system |
-
2012
- 2012-07-13 CN CN 201220340475 patent/CN202878511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000942A (en) * | 2019-05-14 | 2019-07-12 | 玉田县昌通电子有限公司 | A kind of the roller method for winding and its roller winding structure of multi-line cutting machine |
| CN112138820A (en) * | 2020-08-06 | 2020-12-29 | 李军 | Melt-blown fabric processing system |
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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: 20130417 Termination date: 20200713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |