CN116100421A - Preparation method and application of high-surface-precision calendaring roller - Google Patents

Preparation method and application of high-surface-precision calendaring roller Download PDF

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Publication number
CN116100421A
CN116100421A CN202310200577.6A CN202310200577A CN116100421A CN 116100421 A CN116100421 A CN 116100421A CN 202310200577 A CN202310200577 A CN 202310200577A CN 116100421 A CN116100421 A CN 116100421A
Authority
CN
China
Prior art keywords
precision
grooving
grinding wheel
calender roll
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310200577.6A
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Chinese (zh)
Inventor
黄雷
陈章洋
曹育红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Shichuang Energy Co Ltd
Original Assignee
Changzhou Shichuang Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Shichuang Energy Co Ltd filed Critical Changzhou Shichuang Energy Co Ltd
Priority to CN202310200577.6A priority Critical patent/CN116100421A/en
Publication of CN116100421A publication Critical patent/CN116100421A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention provides a preparation method and application of a high-surface-precision calendaring roller, and belongs to the technical field of photovoltaics; in the invention, the grooving grinding wheel is adopted to carry out grooving on the roller, and the grooving grinding wheel is corrected in real time during grooving, so that the grooving grinding wheel can keep a small chamfer angle and a smooth side surface in the grooving process, and the opened groove angle and side surface meet the requirements of small chamfer angle and roughness; the small chamfer calendaring roller prepared by the method is provided with a plurality of grooves, so that the small chamfer calendaring roller can be used for preparing a plurality of welding strips at the same time, and the preparation speed of the welding strips is effectively improved.

Description

Preparation method and application of high-surface-precision calendaring roller
Technical Field
The invention belongs to the technical field of photovoltaics, and particularly relates to a preparation method and application of a high-surface-precision calendaring roller.
Background
At present, the manufacturing process of the triangular welding strip mainly comprises wire drawing die preparation and extrusion preparation through a triangular grooving press roller. Although the wiredrawing die can prepare the triangular welding strip, the method cannot ensure that the apex angle R of the triangular metal wire is less than 0.01mm, the angle R of the triangular metal wire is not very sharp, and arc chamfering can occur. In addition, the resistance required in the wire drawing forming process is smaller than the tensile limit of the wire itself, but the tensile limit is very low on the extremely fine wire, and the wire breakage is easy to occur. The triangular grooving press roller extrudes to form the triangular welding strip, although 2 sharp small-chamfer vertex angles can be obtained, the problem that the chamfer angle of the other vertex angle is large can exist because the small-chamfer V-shaped groove cannot be formed by directly grooving the roller. Moreover, in the method, the triangular groove is processed by adopting a turning tool or a grinding wheel, the processing surface cannot be polished under the condition that the groove width is too small, and the two surfaces of the triangular welding strip are rough and cannot be smooth and flat.
In addition, the method for forming the triangular solder strips by extruding the triangular slotting press roller in the prior art is low in wire preparation speed, and although the problems can be solved by a roller splicing mode, the splicing accuracy requirement is too high, so that a plurality of rollers cannot be spliced, no gaps exist in the process of splicing the rollers, and the rollers cannot be always concentric in the process of splicing the rollers or the rollers, and therefore the rollers cannot be spliced to form a plurality of V-shaped grooves. Therefore, a preparation method of a high-precision small-chamfer calendaring roller is needed to solve the problems that a roller is too large in slotting chamfer and unsmooth in slotting surface, and cannot be suitable for simultaneously pressing a plurality of triangular welding strips.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a preparation method and application of a high-surface-precision calendaring roller; in the invention, the grooving grinding wheel is adopted to carry out grooving on the roller, and the grooving grinding wheel is corrected in real time during grooving, so that the grooving grinding wheel can keep a small chamfer angle and a smooth side surface in the grooving process, and the opened groove angle and side surface meet the requirements of small chamfer angle and roughness; the small chamfer calendaring roller prepared by the method is provided with a plurality of grooves, so that the small chamfer calendaring roller can be used for preparing a plurality of welding strips at the same time, and the preparation speed of the welding strips is effectively improved.
The invention firstly provides a preparation method of a high-surface-precision calendaring roller, which comprises the following steps:
the roller is grooved by the grooving grinding wheel, the grooving grinding wheel is corrected in real time by the correction device in the grooving process, the knife tip of the grooving grinding wheel is ensured to be always kept in a sharp state, and the high-surface-precision calendaring roller with grooves is obtained after grooving is finished.
Preferably, the mesh number of the grooved grinding wheel is 800-2000.
Preferably, the correction device is arranged on the back of the processing position of the slotting grinding wheel, and the state of being clung to the slotting grinding wheel is kept to be corrected in real time.
Preferably, the dressing device comprises a dressing wheel or a wheel dresser.
Preferably, the mesh number of the correction grinding wheel is 800-2000, and the mesh number of the correction grinding wheel is not smaller than that of the grooving grinding wheel.
Preferably, in the preparation process of the calendaring roller, the grooving step is repeated, so that the calendaring roller with a plurality of grooves and high surface accuracy is obtained.
Preferably, the groove structure is adjusted as required.
The invention also provides application of the high-surface-precision calendaring roller prepared by the method to preparation of the high-surface-precision welding strip.
Preferably, the high surface precision welding strip comprises a small chamfer triangular welding strip and a polygonal welding strip with a smooth surface.
The invention also provides a method for preparing the welding strip with high surface precision, which is to extrude the welding strip with high surface precision by adopting the calendaring roller with high surface precision.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, the grooving grinding wheel is polished, the abrasion part of the cutter point is corrected in real time, the cutter point of the grooving grinding wheel is ensured to be always kept in a sharp state, and the grooved groove meets the high-precision chamfering requirement. In addition, the side surface is polished at the same time of grooving, and a grinding wheel with higher mesh number can be used alternatively, so that the grooved groove is smooth and flat, and the surface of the pressed metal welding strip is smooth and flat.
According to the invention, by adding the online correction grinding wheel, the high precision requirement of the groove structure can be ensured, and the abrasion of the grooving, which is the position of the cutter point of the grinding wheel, is not considered. In addition, the slotting mode can be duplicated, a plurality of grooves with the same size and high precision are continuously formed on the same roller, and the pressing speed of the welding strip is effectively improved.
The method can calender groove structures with various shapes, thereby manufacturing other welding strips with higher requirements on chamfering and surface precision, such as small-chamfer triangular welding strips and polygonal welding strips with smooth surfaces. In addition, the preparation method of the high-surface-precision calendaring roller can prepare grooves and metal wires with the vertex angle R less than 0.01 mm.
Compared with a wire drawing die method, the high-surface-precision rolling roller disclosed by the invention has the advantages that the reflection layer on the welding strip cannot fall off when the welding strip is prepared, and the grooves formed in the high-surface-precision rolling roller are suitable for metal welding strips of any size and are not easy to break. In addition, the light energy reflected by the welding strip prepared by the method is absorbed by the cell to the maximum extent, so that the output power of the photovoltaic module can be improved, and the method is more suitable for solar cells.
Drawings
FIG. 1 is a schematic drawing of a grooved roll of the present invention with high surface accuracy.
Fig. 2 is a schematic diagram of the high surface precision solder strip pressing according to the present invention.
Reference numerals:
1-grooving grinding wheel; 2-correction means; 3-rolling; 4-grooves; 5-a movable bearing; 6-welding the tape; 7-straight roll shafts.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
Example 1:
in this embodiment, the preparation method of the high surface precision calender roll with the surface groove as the triangular groove is explained by taking the preparation example of the high surface precision calender roll with the surface groove as the triangular groove as an example, but the groove obtained by the method of the invention is not limited to the triangular groove, and also comprises other grooves with higher requirements on chamfering and surface precision, such as small chamfering, trapezoids, rectangles, polygons and other structures with smooth surfaces.
The specific preparation method of the high-surface-precision calendaring roller with the triangular grooves comprises the following steps:
as shown in fig. 1, two groups of grinding wheels are provided in the embodiment, one group is used for grooving the roller 3 and is a grooving grinding wheel 1, the other group is a correction grinding wheel of the grooving grinding wheel, and the grooving grinding wheel 1 is corrected in real time by using the correction grinding wheel while grooving the roller 3; the correction grinding wheel is mainly used for correcting the worn vertex angle of the grooving grinding wheel 1 and polishing the surface of the grinding wheel, so that the grooving grinding wheel 1 can keep a small chamfer vertex angle and a smooth side surface in the grooving process, and the opened groove vertex angle and side surface meet the requirements of small chamfer angle and roughness.
When in grooving, grooves with different shapes can be formed by adjusting the inclination angle of the grooving grinding wheel, and in the embodiment, the inclination angle of the grooving grinding wheel 1 is adjusted, so that a triangular groove is obtained through grooving; the grooving step is then repeated to obtain a high surface accuracy calender roll having a plurality of grooves.
In the specific implementation process, the higher the mesh number of the slotting grinding wheel 1 is, the more easily the slotting grinding wheel 1 is worn, and the real-time correction is carried out on the slotting grinding wheel 1, so that the problem of wear of the slotting grinding wheel 1 is not worried about, and the slotting grinding wheel 1 with higher mesh number can be selected. In addition, the roughness of the correction grinding wheel determines the roughness of the grooving grinding wheel 1, the roughness of the grooving grinding wheel 1 determines the roughness of the groove 4 of the roller 3, and the smoothness of the groove 4 of the roller 3 can be improved by selecting the correction grinding wheel with large mesh and the grooving grinding wheel 1. The mesh number of the slotting grinding wheel 1 is 800-2000; the correcting device 2 is arranged on the back of the machining position of the slotting grinding wheel 1, and is kept to be clung to the slotting grinding wheel 1 for real-time correction; the number of the corrected grinding wheels is 800-2000, and the number of the corrected grinding wheels is greater than or equal to the number of the grooved grinding wheels.
The embodiment also provides a method for preparing the triangular solder strip by adopting the high-surface-precision calendaring roller with the triangular groove as the surface groove, which comprises the following steps:
as shown in fig. 2, a straight roll shaft 7 without any slot is placed on the high-surface-precision calendaring roll with the triangular groove as the surface groove, the straight roll shaft 7 is supported by a movable bearing 5 capable of moving up and down, and the contact section of the high-surface-precision calendaring roll with the triangular groove and the straight roll shaft 7 forms the triangular groove. And (3) straightening and tightening the welding strip, placing the welding strip in a triangular groove of a high-surface-precision calendaring roller, and then adjusting the movable bearing 5 to adjust the position of the straight roller shaft 7 until the welding strip is attached to the high-surface-precision calendaring roller, and pressing the welding strip 6 to obtain the triangular welding strip. In the actual pressing process, the welding strip 6 is matched with the high-surface-precision calendaring roller and the straight roller shaft 7 through the paying-off device, the tension tightening device and the wire guiding device, so that the welding strip 6 is kept in a state of being stretched, straightened and consistent in running speed with the linear speed of the roller shaft, then the welding strip 6 enters the wire guiding device or the wire guiding wheel with fixed positions, and the welding strip 6 is guided into the groove 4 to be calendared through the two-point one-line fixed before the wire guiding wheel and the groove 4 and the stable advancing state of the welding strip 6.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.

Claims (10)

1. The preparation method of the high-surface-precision calendaring roller is characterized by comprising the following steps of:
the roller is grooved by the grooving grinding wheel, the grooving grinding wheel is corrected in real time by the correction device in the grooving process, the knife tip of the grooving grinding wheel is ensured to be always kept in a sharp state, and the high-surface-precision calendaring roller with grooves is obtained after grooving is finished.
2. The method for manufacturing a high-surface-precision calender roll according to claim 1, wherein the grooved grinding wheel has a mesh number of 800-2000.
3. The method for manufacturing a high-surface-precision calender roll according to claim 1, wherein the correction device is arranged on the back surface of the grooving grinding wheel processing position, and the state of being closely attached to the grooving grinding wheel is maintained for real-time correction.
4. The method of producing a high surface accuracy calender roll according to claim 1, wherein the dressing device includes a dressing wheel or a wheel dresser.
5. The method for manufacturing a high-surface-precision calender roll according to claim 4, wherein the number of the corrective grinding wheels is 800 to 2000 and the number of the corrective grinding wheels is not less than the number of the grooved grinding wheels.
6. The method for producing a high-surface-precision calender roll according to claim 1, wherein the grooving step is repeated during the production of the calender roll to obtain a high-surface-precision calender roll having a plurality of grooves.
7. The method of manufacturing a high surface accuracy calender roll according to claim 1, wherein the groove structure is adjusted as needed.
8. The use of a high surface precision calender roll prepared by the method of any one of claims 1-7 to prepare a high surface precision solder strip.
9. The use of claim 8, wherein the high surface precision solder strips include small chamfer triangular solder strips and smooth surfaced polygonal solder strips.
10. A method for preparing a high-surface-precision solder strip, which is characterized in that the high-surface-precision solder strip is formed by extrusion of a high-surface-precision calender roll prepared by the method according to any one of claims 1-7.
CN202310200577.6A 2023-01-20 2023-01-20 Preparation method and application of high-surface-precision calendaring roller Pending CN116100421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310200577.6A CN116100421A (en) 2023-01-20 2023-01-20 Preparation method and application of high-surface-precision calendaring roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310200577.6A CN116100421A (en) 2023-01-20 2023-01-20 Preparation method and application of high-surface-precision calendaring roller

Publications (1)

Publication Number Publication Date
CN116100421A true CN116100421A (en) 2023-05-12

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ID=86267369

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310200577.6A Pending CN116100421A (en) 2023-01-20 2023-01-20 Preparation method and application of high-surface-precision calendaring roller

Country Status (1)

Country Link
CN (1) CN116100421A (en)

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