CN108674010B - Screen printing equipment, lamination machine and screen printing method - Google Patents
Screen printing equipment, lamination machine and screen printing method Download PDFInfo
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- CN108674010B CN108674010B CN201810684765.XA CN201810684765A CN108674010B CN 108674010 B CN108674010 B CN 108674010B CN 201810684765 A CN201810684765 A CN 201810684765A CN 108674010 B CN108674010 B CN 108674010B
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- 238000007650 screen-printing Methods 0.000 title claims abstract description 136
- 238000003475 lamination Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004020 conductor Substances 0.000 claims abstract description 113
- 238000012546 transfer Methods 0.000 claims abstract description 94
- 238000007599 discharging Methods 0.000 claims abstract description 50
- 238000003466 welding Methods 0.000 claims description 32
- 238000001514 detection method Methods 0.000 claims description 26
- 238000003860 storage Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims 2
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000007639 printing Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Electromagnetism (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Primary Cells (AREA)
- Printing Methods (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a screen printing device, a lamination machine and a screen printing method, wherein the screen printing device comprises: the device comprises a transfer device, a first feeding device, a screen printing device and a first discharging device, wherein the first feeding device picks up the ith a th group of battery pieces from a first conveying device of a previous path, and places the ith a th group of battery pieces on the transfer device at a first feeding and discharging position; the transferring device conveys the ith a th group of battery pieces to the position of the screen printing device, and the screen printing device performs screen printing on the ith a th group of battery pieces positioned below the transferring device, so that a preset area of the ith a th group of battery pieces is brushed with conductive materials; the transfer device conveys the ith a th battery piece printed with the conductive material to a first loading and unloading position, and the first unloading device moves away the ith a th battery piece printed with the conductive material on the transfer device at the first loading and unloading position. According to the application, the screen printing device is used for simultaneously printing the conductive materials on the plurality of battery pieces, so that the efficiency of coating the conductive materials is improved.
Description
Technical Field
The invention belongs to the technical field of battery piece lamination generation, and relates to screen printing equipment, a lamination machine and a screen printing method.
Background
With the increasing rise of clean energy sources such as solar energy in China, the rapid development of the photovoltaic industry in China is brought. In the production process of the shingled photovoltaic module, the cell pieces with the traditional size are required to be cut into small pieces firstly, then the small pieces are rearranged and fixed in a shingled mode, and the light receiving area of the unit area of the module is increased, so that the photoelectric conversion efficiency is enhanced.
In the production process of the traditional shingle assembly, conductive materials are required to be added on the main grid line of the battery piece, 6 pieces of conductive materials are coated at one time in traditional equipment, and in addition, the traditional conductive material adding mode is dispensing, namely, the conductive materials are dispensed on the main grid line; or a doctor blade type, namely, dropping the conductive material to one end of the main grid line, and doctor the conductive material to the whole main grid line through a scraper. However, both of the two methods have low efficiency, so that the production efficiency of the whole production line is low.
Disclosure of Invention
The application provides screen printing equipment, a lamination machine and a screen printing method, which are used for solving the problem that the production efficiency is low when conductive materials are added to a battery piece main grid line by adopting dispensing type or knife coating type in the related technology. The specific technical scheme is as follows:
In a first aspect, there is provided a screen printing apparatus comprising: transfer device, first loading attachment, screen printing device and first unloader, wherein: the first feeding device, the screen printing device and the first discharging device are uniformly distributed on the periphery of the transfer device; the first feeding device picks up the ith a th group of battery pieces from the first conveying device of the previous path, and places the ith a th group of battery pieces on the transfer device at the first feeding and discharging positions; the transferring device conveys the ith a th group of battery pieces to the position of the screen printing device, and the screen printing device performs screen printing on the ith a th group of battery pieces positioned below the transferring device, so that a preset area of the ith a th group of battery pieces is brushed with conductive materials; the transfer device conveys the ith a th battery piece printed with the conductive material to a first loading and unloading position, and the first unloading device moves away the ith a th battery piece printed with the conductive material on the transfer device at the first loading and unloading position.
The screen printing device is arranged to print the conductive material to the plurality of battery pieces at the same time, so that the efficiency of coating the conductive material is improved.
With reference to the first aspect, in a first optional implementation manner, the first feeding device includes a first detecting portion and a first arranging portion, where: the first detection part detects and positions the ith a th group of battery pieces on the first conveying device; the first regular placement part regularly places the ith a th group of battery plates on the transfer device at the first loading and unloading position according to the positioning information of the first detection part.
The battery piece detection of the conductive material to be printed, such as appearance detection, breakage detection, dirt detection and the like, can be performed through the first detection part, unqualified battery pieces are removed, and only qualified battery pieces are reserved for the first regular placement part to be placed regularly, so that the battery pieces to be printed are all qualified battery pieces, and the quality of battery piece lamination into a battery string is guaranteed.
With reference to the first aspect or the first optional implementation manner of the first aspect, in a second optional implementation manner, the first blanking device includes a first positioning portion and a first stacking portion, where: the first positioning part is used for positioning an i a th group of battery plates printed with conductive materials at a first loading and unloading position on the transferring device; the first stacking part moves the ith a group of battery pieces away from the transfer device at the first loading and unloading position according to the positioning information of the first positioning part, and stacks the moved ith a group of battery pieces on the second conveying device at the later stage according to a preset stacking mode.
And the ith a th group of battery pieces printed with the conductive materials are positioned through the first positioning part, so that the first stacking part performs regular lamination when stacking the battery pieces, and the stacking quality is ensured.
With reference to the first aspect, the first optional implementation manner of the first aspect, or the second optional implementation manner of the first aspect, in a third optional implementation manner, the transferring device conveys the battery piece in a rotating stepping manner, and the screen printing apparatus further includes: second loading attachment and second unloader, wherein: the second feeding device and the second discharging device are uniformly distributed around the transfer device, the second feeding device is opposite to the first feeding device, and the second discharging device is opposite to the first discharging device; the second feeding device picks up the ith b th group of battery pieces from the third conveying device of the previous path, and places the ith b th group of battery pieces on the transfer device at the second feeding and discharging positions; the transfer device rotates and steps to convey the ith b th group of battery pieces to the position of the screen printing device, and the screen printing device performs screen printing on the ith b th group of battery pieces arranged below the transfer device, so that a preset area of the ith b th group of battery pieces is brushed with conductive materials; the transfer device rotates and steps to convey the ith a th battery piece printed with the conductive material to a second feeding and discharging position, and the second discharging device moves away the ith b th battery piece printed with the conductive material on the transfer device at the second feeding and discharging position.
Through setting up second loading attachment and second unloader, realized the screen printing of two sets of battery pieces of parallel, improved screen printing's efficiency.
With reference to the third optional implementation manner of the first aspect, in a fourth optional implementation manner, the second feeding device includes a second detecting portion and a second arranging portion, where: the second detection part detects and positions the ith b th group of battery pieces on the third conveying device; and the second regular placement part regularly places the ith b th group of battery plates on the transfer device at a second loading and unloading position according to the positioning information of the second detection part.
The battery piece of the conductive material to be printed can be detected through the second detection part, such as appearance detection, breakage detection, dirt detection and the like, improper battery pieces are removed, and only qualified battery pieces are reserved for the second regular placement part to be regularly placed, so that the battery pieces to be printed are qualified, and the quality of battery strings formed by laminating the battery pieces is guaranteed.
With reference to the third optional implementation manner of the first aspect, in a fifth optional implementation manner, the second discharging device includes a second positioning portion and a second stacking portion, where: the second positioning part is used for positioning the ith b th group of battery pieces positioned on the transfer device; and the second stacking part conveys the ith b th group of battery pieces out of the transfer device at a second loading and unloading position according to the positioning information of the second positioning part, and stacks the conveyed ith b th group of battery pieces on a fourth conveying device at a later stage according to a preset stacking mode.
And the ith b th group of battery pieces printed with the conductive materials are positioned through the second positioning part, so that the second stacking part performs regular lamination when stacking the battery pieces, and the stacking quality is ensured.
With reference to the first aspect, the first optional implementation manner of the first aspect, or any one of the fifth optional implementation manners of the first aspect, in a sixth optional implementation manner, the screen printing device includes a screen, a doctor assembly, and a conductive material supply part, a hollowed-out area corresponding to a predetermined area of at least one battery piece is provided on the screen, and a driving part in the doctor assembly drives the doctor to move from a first end to a second end of the screen, so that the conductive material supplied by the conductive material supply part is smeared on all areas of the screen, and the conductive material in the hollowed-out area is smeared on the predetermined area of the corresponding battery piece below the hollowed-out area.
In a second aspect, there is also provided a lamination machine comprising: the screen printing apparatus, the magazine, the first loading section, the first conveying device, the second conveying device and the first welding device as provided in the first aspect and various optional implementations of the first aspect, wherein the magazine, the first loading section and the first conveying device are located in front of the first loading device, and the second conveying device and the first welding device are located in rear of the first blanking device, and wherein: the first feeding part places a group of battery pieces picked up from the storage box on the first conveying device, wherein the a group of battery pieces comprise an ith a group of battery pieces and an (i+1) a group of battery pieces … an (i+j) a group of battery pieces …, and i and j are nonzero natural numbers; a first blanking device in the screen printing device conveys the ith a th group of battery pieces printed with the conductive materials by the transfer device to a second conveying device; and the first welding device is used for welding the ith a th group of battery pieces on the second conveying device.
The screen printing device is arranged to print the conductive material to the plurality of battery pieces at the same time, so that the efficiency of coating the conductive material is improved.
Optionally, the lamination machine further includes a second feeding portion, a third conveying device, a fourth conveying device and a second welding device, the second feeding portion and the third conveying device are located in a front path of the second feeding device, the fourth conveying device and the second welding device are located in a rear path of the second discharging device, wherein: the second feeding part places b groups of battery pieces picked up from the storage box on the third conveying device, wherein the b groups of battery pieces comprise an ith b th group of battery pieces and an (i+1) b th group of battery pieces … an (i+j) b th group of battery pieces …, and i and j are nonzero natural numbers; the second blanking device in the screen printing device conveys the ith b th group of battery pieces printed with the conductive materials by the transfer device to the fourth conveying device; and the second welding device is used for welding the ith b th group of battery pieces on the fourth conveying device.
Through setting up second material loading portion, third conveyor, fourth conveyor and second welding set, realized silk screen printing and lamination, the welding of two sets of battery pieces of parallel, improved silk screen printing's efficiency and lamination welded efficiency.
In a third aspect, there is also provided a screen printing method applied to the screen printing apparatus as provided in the first aspect and various optional implementations of the first aspect, the screen printing method including: the first feeding device places the ith a group of battery pieces picked up from the first conveying device on the transfer device at a first loading and unloading position; the transferring device conveys the ith a th group of battery pieces to the position of the screen printing device, and the screen printing device performs screen printing on the ith a th group of battery pieces positioned below, so that a preset area of the ith a th group of battery pieces is brushed with conductive materials; the transfer device conveys the ith a th battery piece printed with the conductive material to a first loading and unloading position, and the first unloading device moves away the ith a th battery piece printed with the conductive material at the first loading and unloading position.
And the screen printing device is used for simultaneously printing the conductive materials on the plurality of battery pieces, so that the efficiency of coating the conductive materials is improved.
Optionally, in the screen printing apparatus provided in the third optional implementation manner of the first aspect, the screen printing method includes: when the first feeding device places the (i+2) a th group of battery pieces picked up from the third conveying device on the transfer device at the first loading and unloading position, the second feeding device places the (i b) th group of battery pieces picked up from the third conveying device on the transfer device at the second loading and unloading position; the screen printing device simultaneously prints conductive materials to the ith a group of battery pieces placed on the transfer device by the first feeding device and the ith b group of battery pieces placed on the transfer device by the second feeding device; after the first blanking device removes the ith a th group of battery pieces printed with the conductive materials at the first loading and unloading position, the first feeding device places the (i+1) a th group of battery pieces picked up by the first conveying device on the transfer device; the second feeding device carries the (i+1) a th group of battery pieces which are picked up by the third conveying device on the transfer device after the second feeding device carries the (i b) th group of battery pieces printed with the conductive materials away at the second feeding and discharging position; where i is a non-zero natural number.
Through second loading attachment and second unloader, realized two sets of operations to the material loading of silk screen printing device, unloading of parallel, and then realized the silk screen printing of two sets of battery pieces of time slot, improved silk screen printing's efficiency.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a block diagram of a lamination machine provided in a portion of an embodiment of the invention;
fig. 2 is a schematic structural view of a screen printing apparatus provided in one embodiment of the invention;
fig. 3 is a block diagram of a lamination machine provided in another embodiment of the invention;
fig. 4 is a schematic structural view of a screen printing apparatus provided in another embodiment of the invention;
FIG. 5 is a block diagram of a lamination machine provided in one embodiment of the invention;
fig. 6 is a top view of a lamination machine provided in one embodiment of the invention;
Fig. 7 is a schematic flow chart of feeding and discharging a battery piece and screen printing during screen printing according to an embodiment of the invention.
Wherein, the reference numerals are as follows:
10. A screen printing apparatus; 11. a transfer device; 12. a first feeding device; 121. a first detection unit; 122. a first regular placement section; 13. a screen printing device; 14. a first blanking device; 141. a first positioning portion; 142. a first stacking portion; 15. a second feeding device; 151. a second detection unit; 152. a second regular placement section; 16. a second blanking device; 161. a second positioning portion; 162. a second stacking portion; 20. a stock box; 30a, a first feeding part; 40a, a first conveying device; 50a, a second conveying device; 60a, a first welding device; 30b, a second feeding part; 40b, a third conveying device; 50b, fourth conveying means; 60b, a second welding device; 70a, a first discharging device; 70b, a second discharging device;
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
In the production process of the traditional laminated tile assembly, before lamination of the battery pieces, conductive materials are required to be coated on the preset area of the battery pieces so that after lamination, adjacent battery pieces are electrically connected through the conductive materials, therefore, in a lamination machine for generating the laminated tile battery pieces, a more important link exists, namely, the preset area of the battery pieces is coated with the conductive materials, and at present, when the conductive materials are added to the main grid line of the battery pieces through dispensing or knife coating, the production efficiency is low. In view of this, the present application provides a lamination machine that can screen-print conductive materials to a plurality of battery pieces, thereby improving the production efficiency. The lamination machine is illustrated below in connection with fig. 1-7.
Fig. 1 is a schematic view showing a structure of a laminator including a screen printing apparatus 10, a magazine 20, a first loading section 30a, a first conveying device 40a, a second conveying device 50a, and a first welding device 60a according to an embodiment of the invention.
In an alternative implementation, please refer to fig. 2, which is a schematic structural diagram of a screen printing apparatus according to one embodiment of the present invention, the screen printing apparatus 10 may include a middle rotating device 11, a first feeding device 12, a screen printing device 13, and a first discharging device 14, where: the first feeding device 12, the screen printing device 13 and the first discharging device 14 are uniformly distributed on the periphery of the transfer device 11.
In an alternative implementation, the first feeding device 12 includes a first detecting portion 121 (not shown in fig. 2) and a first arranging portion 122, where: the first detecting unit 121 detects and positions the i a th group of battery pieces on the first conveying device 40 a; the first arranging part 122 arranges the i a th group of battery cells on the transfer device 11 according to the positioning information of the first detecting part 121 at the first loading and unloading position.
The first loading and unloading position referred to herein is only a position where the first loading device 12 places the battery piece toward the transfer device 11, or a position where the first unloading device 14 picks up the battery piece from the transfer station, and is not generally considered to be a specific position of the transfer device 11.
Alternatively, in order to improve the working efficiency, the first alignment and placement part 122 may pick up a plurality of battery pieces, such as 3 battery pieces, 6 battery pieces, 12 battery pieces, etc., from the first conveying device 40a at the same time.
The first detecting portion 121 may detect the battery pieces of the conductive material to be printed, including appearance detection, breakage detection, and dirt detection, and reject the unqualified battery pieces, and only reserve the qualified battery pieces for the first arranging portion 122 to arrange regularly, so as to ensure that the battery pieces to be printed are qualified battery pieces, and ensure the quality of the battery strings formed by laminating the battery pieces. Alternatively, the first detection section 121 may be an image pickup apparatus having a photographing function, such as a line camera, an area camera, or the like. Optionally, the first detecting part 121 may further include a camera and a camera mounting bracket on which the camera is mounted.
In actual production, the first feeding device 12 picks up the ith a th group of battery pieces from the first conveying device 40a of the previous path, and places the ith a th group of battery pieces on the transferring device 11 at the first loading and unloading position.
The transfer device 11 conveys the ith a th group of battery pieces to the position of the screen printing device 13, and the screen printing device 13 performs screen printing on the ith a th group of battery pieces arranged below the transfer device 11, so that the preset area of the ith a th group of battery pieces is brushed with conductive materials.
The screen printing device 13 may be capable of printing conductive material to a plurality of cells simultaneously, such as to predetermined areas of each cell simultaneously. The predetermined area here is typically the main grid line area of the cell where the edges need to be superimposed. The conductive material may be a material having adhesive force such as conductive paste and being conductive.
In one possible implementation, the screen printing apparatus 10 may include a screen, a doctor blade assembly, and a supply of conductive material. The scraper assembly may include a scraper and a driving part for driving the scraper to move. The length of the doctor blade is typically greater than the length of the predetermined area on the battery plate to which the conductive material is to be applied.
The screen is provided with a hollowed-out area corresponding to the preset area of at least one battery piece, for example, when the conductive material is coated on one battery piece, the screen can be provided with a hollowed-out area according to the preset area of the battery piece to be coated with the conductive material; in order to improve the efficiency of coating the conductive material, a plurality of hollowed-out areas can be arranged on the silk screen, and each hollowed-out area corresponds to a preset area of the battery piece to be coated with the conductive material.
When the conductive material is coated on the battery piece by utilizing the silk screen, the driving part in the scraper component drives the scraper to move from the first end to the second end of the silk screen so as to coat the conductive material supplied by the conductive material supply part on the whole area of the silk screen, and the conductive material in the hollowed-out area is coated on the preset area of the corresponding battery piece below the hollowed-out area, so that the purpose of rapidly coating the guide material on the battery piece by utilizing the silk screen is realized.
The first blanking device 14 includes a first positioning portion 141 (not shown in fig. 2) and a first stacking portion 142, wherein: the first positioning part 141 is used for positioning the ith a th group of battery plates printed with the conductive material at the first loading and unloading position on the rotating device 11; the first stacking part 142 moves the i a th group of battery pieces away from the transfer device 11 at the first loading and unloading position according to the positioning information of the first positioning part 141, and stacks the moved i a th group of battery pieces on the subsequent second conveying device 50a according to a predetermined stacking mode.
The i a th group of battery pieces printed with the conductive material are positioned through the first positioning part 141, so that the first stacking part 142 performs regular stacking when the battery pieces are stacked, and the stacking quality is ensured.
The transfer device 11 conveys the i a th battery cell printed with the conductive material to the first loading and unloading position, and the first unloading device 14 removes the i a th battery cell printed with the conductive material on the transfer device 11 at the first loading and unloading position.
By providing the screen printing device 13, the conductive material can be printed on a plurality of battery pieces at the same time, and the efficiency of applying the conductive material is improved.
In actual production, the first feeding portion 30a and the first conveying device 40a are located in front of the first feeding device 12 in the screen printing apparatus 10, and the second conveying device 50a and the first welding device 60a are located in rear of the first discharging device 14 in the screen printing apparatus 10.
The "front pass" and "rear pass" herein refer to layout positions defined by the process, that is, according to the processing procedure of the battery sheet, the battery sheet passes through the first feeding portion 30a, the first conveying device 40a, then passes through the first feeding device 12, the first discharging device 14, and finally passes through the second conveying device 50a and the first welding device 60a. In the actual space installation layout, the layout may be performed according to factors such as actual space limitation and process requirements.
The storage box 20 is used for storing battery pieces, and the first loading part 30a conveys the battery pieces in the storage box 20 to the first conveying device 40 a. Alternatively, the first loading portion 30a may be a component having pick, place and move actions, such as a gripper or a robot.
Alternatively, the battery piece in the storage box 20 may be a standard battery piece, or may be a battery piece unit obtained after being cut and broken, where the battery piece refers to a battery piece or a battery piece unit of a standard silicon wafer that can be processed by lamination, where the battery piece unit may be one half, one third, one quarter, one fifth, etc. of the standard regular battery piece, and in general, the battery piece units all have main grid lines.
In the present application, the first loading unit 30a places the a-group battery cells picked up from the magazine 20 on the first conveying device 40 a. For convenience of description and understanding, the battery cells picked up from the first conveying device 40a are grouped into a-group battery cells in the present application. The group a of battery pieces referred to herein includes an i a th battery piece, an (i+1) a th battery piece … an (i+j) a th battery piece …, i, j being a non-zero natural number, for example, a first group of battery pieces picked up from the first conveying device 40a is denoted as a1 a th battery piece, a second group of battery pieces picked up from the first conveying device 40a is denoted as a 2 a th battery piece, and a third group of battery pieces picked up from the first conveying device 40a is denoted as a 3 a rd battery piece ….
The transferring device 11 may be used to convey the battery sheet, so that the screen printing apparatus 10 can be arranged in space, and the transferring device 11 may be used to convey the battery sheet in a linear step manner, or may be used to convey the battery sheet in a rotary step manner, for example, 30 °, 45 °, 90 °,120 ° each time, and the like, and the angle of the rotary step may be set according to the space arrangement among the first feeding device 12, the first discharging device 14, and the screen printing device 13.
The first discharging device 14 in the screen printing apparatus 10 conveys the i a th group of battery pieces printed with the conductive material by the intermediation device 11 onto the second conveying device 50 a. Alternatively, the first discharging device 14 conveys and stacks the i a th group of battery cells printed with the conductive material onto the second conveying device 50a in a predetermined stacking manner.
The first welding device 60a welds the i a th group of battery cells on the second conveying device 50 a. The first welding device 60a may be a heating device to achieve welding between the stacked two battery cells by heating the conductive material.
By providing the screen printing device 13, the conductive material can be printed on a plurality of battery pieces at the same time, and the efficiency of applying the conductive material is improved.
In order to improve the lamination efficiency, the production apparatus may consider two-line production, i.e. share one screen printing device 13, as shown in fig. 3, which is a block diagram of a lamination machine provided in another embodiment of the present invention, where the lamination machine further includes a second feeding portion 30b, a third conveying device 40b, a fourth conveying device 50b, and a second welding device 60b, the second feeding portion 30b and the third conveying device 40b are located in front of the second feeding device 15, and the fourth conveying device 50b and the second welding device 60b are located in back of the second blanking device 16.
The second loading and unloading position referred to herein is only a position where the second loading device 15 places the battery piece toward the transfer device 11, or a position where the second unloading device 16 picks up the battery piece from the transfer station, and is not generally considered to be a specific position of the transfer device 11.
Similarly, the second loading unit 30b conveys the battery cells in the magazine 20 to the third conveying device 40 b. Alternatively, the second loading portion 30b may be a component having pick, place and move actions, such as a gripper or a robot.
In order to distinguish the battery pieces of the first feeding portion 30a placed on the first conveying device 40a, the battery pieces of the second feeding portion 30b placed on the third conveying device 40b are called b-group battery pieces in the present application. Similarly, the b-group battery cell includes an i b -th battery cell, an (i+1) - b -th battery cell … an (i+j) - b -th battery cell …, i, j being a non-zero natural number.
The second blanking device 16 in the screen printing device 13 conveys the ith b group of battery pieces printed by the conductive material through the transfer device 11 to the fourth conveying device 50 b; the second welding device 60b welds the i b th group of battery cells on the fourth conveying device 50 b.
By arranging the second feeding part 30b, the third conveying device 40b, the fourth conveying device 50b and the second welding device 60b, screen printing, lamination and welding of two groups of parallel battery pieces are realized, and the efficiency of screen printing and the efficiency of lamination welding are improved.
Referring to fig. 4, which is a schematic structural diagram of a screen printing apparatus 10 according to another embodiment of the present invention, the above-mentioned transfer device 11 may convey the battery sheet in a rotating and stepping manner, and the screen printing apparatus 10 further includes: a second feeding device 15 and a second discharging device 16, wherein: the second feeding device 15 and the second discharging device 16 are uniformly distributed around the transfer device 11, the second feeding device 15 is opposite to the first feeding device 12, and the second discharging device 16 is opposite to the first discharging device 14.
In an alternative implementation, the second feeding device 15 includes a second detecting portion 151 and a second arranging portion 152, where the second detecting portion 151 may detect a battery piece of the conductive material to be printed, such as appearance detection, breakage detection, dirt detection, and the like.
After the second detecting part 151 detects and positions the ith b th group of battery pieces on the third conveying device 40b, the unsuitable battery pieces are removed, only qualified battery pieces are reserved for the second arranging part 152 to arrange regularly, the second arranging part 152 arranges the ith b th group of battery pieces on the transferring device 11 at the second feeding and discharging positions according to the positioning information of the second detecting part 151, and therefore the battery pieces to be printed are all qualified battery pieces, and the quality of battery strings formed by laminating the battery pieces is guaranteed.
The second loading device 15 picks up the ith b th battery cell from the third conveying device 40b of the previous path, and places the ith b th battery cell on the transfer device 11 at the second loading and unloading position.
The battery sheet may be conveyed by the transfer device 11 in a rotating step manner, and according to the structure of the screen printing apparatus 10 in fig. 4, the transfer device 11 may be rotated by 90 ° each time, and obviously, in practical applications, the rotation angle of the transfer device 11 may be set according to the installation positions of the first feeding device 12, the first discharging device 14, the second feeding device 15, the second discharging device 16, and the screen printing device 13 each time.
The transfer device 11 rotates and steps to convey the ith b th group of battery pieces to the position of the screen printing device 13, and the screen printing device 13 performs screen printing on the ith b th group of battery pieces positioned below the transfer device 11, so that the preset area of the ith b th group of battery pieces is brushed with conductive materials.
The transfer device 11 rotates and steps to convey the ith a th group of battery pieces printed with the conductive material to the second loading and unloading position, and the second unloading device 16 moves away the ith b th group of battery pieces printed with the conductive material on the transfer device 11 at the second loading and unloading position.
In this way, the application realizes the screen printing of two groups of parallel battery plates by arranging the second feeding device 15 and the second discharging device 16, and improves the efficiency of screen printing.
In one possible implementation, the second blanking device 16 includes a second positioning portion 161 (not shown in fig. 4) and a second stacking portion 162, wherein: the second positioning part 161 is used for positioning the ith b th group of battery pieces positioned on the transfer device 11; the second stacking part 162 moves the i b th group of battery pieces from the transferring device 11 at the second loading and unloading position according to the positioning information of the second positioning part 161, and stacks the moved i b th group of battery pieces on the fourth conveying device 50b at the subsequent stage according to a preset stacking mode.
The ith b th group of battery pieces printed with the conductive material are positioned through the second positioning part 161, so that the second stacking part 162 performs regular stacking when the battery pieces are stacked, and the stacking quality is ensured.
In an alternative implementation, where two stacking lines share the same screen printing device 13, a perspective view of the structure may be seen in fig. 5, and a corresponding top view may be seen in fig. 6, and the lamination machine may further include a first discharging device 70a and a second discharging device 70b, where the first discharging device 70a is configured to output a battery string with a welded lamination on the second conveying device 50a, and the second discharging device 70b is configured to output a battery string with a welded lamination on the fourth conveying device 50 b.
In addition, the present application provides a screen printing method that can be performed using the screen printing apparatus 10 described above, which may include:
S1, the first feeding device 12 places the ith a group of battery pieces picked up from the first conveying device 40a on the transfer device 11 at a first loading and unloading position.
First, the first loading unit 30a places the battery piece on the input end of the first conveying device 40a, the first conveying device 40a conveys the battery piece, and the first loading unit 12 picks up the battery piece from the output end of the first conveying device 40 a.
In order to improve efficiency, the first loading device 12 picks up a plurality of battery pieces, denoted as a group of battery pieces, from the output end of the first conveying device 40 a. Generally, the number of battery pieces picked up by the first feeding device 12 from the first conveying device 40a is the same, for example, 6 pieces each, or 12 pieces each, etc.
For convenience of description, the battery pieces of the first conveying device 40a that are picked up by the first feeding device 12 at a time are denoted as the i a th battery piece, for example, the first battery piece of the first conveying device 40a that is picked up by the first feeding device 12 is the 1 st a th battery piece, the second battery piece of the first conveying device 40a that is picked up by the first feeding device 12 is the 2 nd a th battery piece, the third battery piece of the first conveying device 12 that is picked up by the first conveying device 40a is the 3 rd a th battery piece, and so on.
And S2, conveying the ith a th group of battery pieces to the position of the screen printing device 13 by the middle rotating device 11, and performing screen printing on the ith a th group of battery pieces positioned below by the screen printing device 13 to brush a preset area of the ith a th group of battery pieces with conductive materials.
Generally, each time the first feeding device 12 places a group of battery cells toward the transferring device 11, the transferring device 11 steps once.
According to the position between the screen printing device 13 and the first feeding device 12, the transferring device 11 steps at least once until the ith a th group of battery pieces are conveyed to the position of the screen printing device 13, and then the screen printing device 13 performs screen printing on the ith a th group of battery pieces positioned below at the same time, so that the preset areas of the ith a th group of battery pieces are printed with conductive materials.
And S3, conveying the ith a th battery piece printed with the conductive material to a first loading and unloading position by the transfer device 11, and removing the ith a th battery piece printed with the conductive material at the first loading and unloading position by the first unloading device 14.
After the screen printing device 13 finishes printing the conductive material on the i a th group of battery cells, the transferring device 11 continues to step until the i a th group of battery cells are conveyed to the first loading and unloading position, and the first unloading device 14 removes the i a th group of battery cells printed with the conductive material at the first loading and unloading position.
Alternatively, the first blanking device 14 may pick up the ith a th group of battery pieces printed with the conductive material at the first loading and blanking position at the same time, and correspondingly, the first blanking device 14 may be provided with the same number of pick-up heads as that of each group of battery pieces.
When the screen printing apparatus 10 is of the structure shown in fig. 4, the screen printing method applied to the screen printing apparatus 10 may include: when the first loading device 12 places the (i+2) a th group of battery pieces picked up from the third conveying device 40b on the relay device 11 at the first loading and unloading position, the second loading device 15 places the i b th group of battery pieces picked up from the third conveying device 40b on the relay device 11 at the second loading and unloading position; the screen printing device 13 simultaneously prints conductive materials to the ith a group of battery pieces placed on the transfer device 11 by the first feeding device 12 and the ith b group of battery pieces placed on the transfer device 11 by the second feeding device 15; after the first discharging device 14 removes the i a th group of battery pieces printed with the conductive material at the first loading and unloading position, the first feeding device 12 places the (i+1) a th group of battery pieces picked up by the first conveying device 40a on the transferring device 11; after the second discharging device 16 removes the i b th group of battery pieces printed with the conductive material at the second feeding and discharging position, the second feeding device 15 places the (i+1) a th group of battery pieces picked up by the third conveying device 40b on the transferring device 11; where i is a non-zero natural number.
For example, please refer to fig. 7, which is a schematic diagram of a process of feeding and discharging a battery sheet and screen printing during screen printing according to an embodiment of the present invention, wherein the screen printing process is as follows:
1. The first loading device 12 is arranged at the first loading and unloading position with the 1 st a th group of battery plates.
2. The transfer device 11 performs the 1 st rotation step, and the first feeding device 12 places the 2 nd a th battery cells at the first loading and unloading position.
After the 1 st rotation step is performed by the transferring device 11, the 1 st a th group of battery plates are not conveyed to the second feeding and discharging position yet.
3. The transfer device 11 rotates for the 2 nd time, the first feeding device 12 places the 3 rd a th battery piece at the first loading and unloading position, and the second feeding device 15 places the 1 st b th battery piece at the second loading and unloading position.
After the transfer device 11 rotates for the 2 nd time, the 1 st a th group of battery pieces are conveyed to the second loading and unloading position, and after the second loading device 15 places the 1 st b th group of battery pieces at the second loading and unloading position, the 1 st a th group of battery pieces and the 1 st b th group of battery pieces are distributed in an arrayed manner.
4. The transfer device 11 performs 3 rd rotation stepping, the 1 st a th battery piece and the 1 st b th battery piece are conveyed to the screen printing device 13, the screen printing device 13 simultaneously screen prints conductive materials on the 1 st a th battery piece and the 1 st b th battery piece, the first feeding device 12 places the 4 th a th battery piece at a first loading and unloading position, and the second feeding device 15 places the 2 nd b th battery piece at a second loading and unloading position.
At this time, the 2 a th group of battery cells and the 2 nd b th group of battery cells are arranged and distributed.
5. The transfer device 11 rotates step by step for the 4 th time, the 1 st a th and 1 st b th battery pieces printed with the conductive material are conveyed to the first loading and unloading position, the screen printing device 13 simultaneously screen prints the conductive material on the 2 nd a th and 2 nd b th battery pieces, the first blanking device 14 removes the 1 st a th battery piece, then the 5 th a th battery piece is placed, and the second loading device 15 places the 3 rd b th battery piece on the second loading and unloading position.
At this time, the 5 th a th and 1 st b th battery cells are arranged and distributed, and the 3 rd a th and 3 rd b th battery cells are arranged and distributed.
6. The transfer device 11 rotates and steps for the 5 th time, the 2 a th battery pieces and the 2 b th battery pieces which are printed with the conductive materials are conveyed to the first feeding and discharging positions, the screen printing device 13 simultaneously screens the 3 rd a th battery pieces and the 3 rd b th battery pieces with the conductive materials, the first discharging device 14 removes the 2 nd a th battery pieces, then the 6 th a th battery pieces are placed, and the second feeding device 15 places the 4 th b th battery pieces at the second feeding and discharging positions.
At this time, the 6 th a th b th battery cell and the 2 nd a th battery cell and the 3 rd b th battery cell are arranged and distributed, the 4 th a th battery cell and the 4 th b th battery cell are arranged and distributed, and the 5 th a th battery cell and the 1 st b th battery cell are arranged and distributed.
7. The transfer device 11 performs the 6 th rotation step, the 3 rd a th battery pieces and the 3 rd b th battery pieces which are printed with the conductive materials are conveyed to the first loading and unloading position, the screen printing device 13 simultaneously performs screen printing on the 4 th a th battery pieces and the 4 th b th battery pieces, the first blanking device 14 removes the 3 rd a th battery pieces, then the 7 th a th battery pieces are placed, the second loading device 15 removes the 1 st b th battery pieces, and then the 5 th b th battery pieces are placed on the second loading and unloading position.
At this time, the 7 th a th and 3 rd b th battery cells, the 6 th a th and 2 nd b th battery cells, the 5 th a th and 5 th b th battery cells, and the 4 th a th and 4 th b th battery cells are arranged and distributed.
8. And so on.
In summary, according to the screen printing method provided by the application, the conductive material is printed on the plurality of battery pieces simultaneously through the screen printing device, so that the efficiency of coating the conductive material is improved. In addition, through second loading attachment and second unloader, realized two sets of operations to the material loading of silk screen printing device, unloading of parallel, and then realized the silk screen printing of two sets of battery pieces of time slot, improved silk screen printing's efficiency.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A screen printing apparatus, characterized by comprising: transfer device, first loading attachment, second loading attachment, screen printing device, first unloader and second unloader, wherein:
the first feeding device, the second feeding device, the screen printing device, the first discharging device and the second discharging device are uniformly distributed around the transfer device;
The first feeding device picks up the ith a th group of battery pieces from the first conveying device of the previous channel, and places the ith a th group of battery pieces on the transfer device at a first loading and unloading position;
The second feeding device picks up the ith b group of battery pieces from the third conveying device in the previous way, and places the ith b group of battery pieces on the transfer device at a second loading and unloading position after the transfer device rotates and steps for the second time;
The transfer device conveys the ith a th group of battery pieces and the ith b th group of battery pieces to the position of the screen printing device in a rotating stepping mode, and the screen printing device simultaneously performs screen printing on the ith a th group of battery pieces and the ith b th group of battery pieces which are positioned on the transfer device below, so that the preset areas of the ith a th group of battery pieces and the ith b th group of battery pieces are brushed with conductive materials;
The transferring device conveys the ith a th group of battery pieces printed with the conductive materials to the first loading and unloading position, and the first blanking device carries away the ith a th group of battery pieces printed with the conductive materials on the transferring device at the first loading and unloading position;
the transfer device conveys the ib-th group of battery pieces printed with the conductive materials to the second loading and unloading position, and the second unloading device moves away the i b -th group of battery pieces printed with the conductive materials on the transfer device at the second loading and unloading position.
2. The screen printing apparatus according to claim 1, wherein the first feeding device includes a first detecting portion and a first regulating portion, wherein:
The first detection part detects and positions the ith a th group of battery pieces on the first conveying device;
The first regular placement part is used for regularly placing the ith a th group of battery plates on the transfer device at the first loading and unloading position according to the positioning information of the first detection part.
3. The screen printing apparatus according to claim 1, wherein the first blanking device includes a first positioning portion and a first stacking portion, wherein:
The first positioning part is used for positioning an i a th group of battery plates printed with conductive materials at the first loading and unloading position on the transfer device;
The first stacking part moves the ith a group of battery pieces away from the transfer device at the first loading and unloading position according to the positioning information of the first positioning part, and stacks the moved ith a group of battery pieces on the second conveying device at the subsequent stage according to a preset stacking mode.
4. The screen printing apparatus according to claim 1, wherein the second feeding devices and the second discharging devices are uniformly distributed around the transfer device, and the second feeding devices are opposite to the first feeding devices, and the second discharging devices are opposite to the first discharging devices.
5. The screen printing apparatus according to claim 1, wherein the second feeding device includes a second detecting portion and a second regulating portion, wherein:
The second detection part detects and positions the ith b th group of battery pieces on the third conveying device;
The second regular placement part regularly places the ith b group of battery pieces on the transfer device at the second loading and unloading positions according to the positioning information of the second detection part.
6. The screen printing apparatus according to claim 1, wherein the second discharging device includes a second positioning portion and a second stacking portion, wherein:
The second positioning part is used for positioning the ith b th group of battery pieces positioned below the transfer device;
And the second stacking part moves the ith b group of battery pieces away from the transfer device at the second loading and unloading position according to the positioning information of the second positioning part, and stacks the moved ith b group of battery pieces on a fourth conveying device at the subsequent stage according to a preset stacking mode.
7. The screen printing apparatus according to any one of claims 1 to 6, wherein the screen printing device comprises a screen, a doctor blade assembly and a conductive material supply portion, the screen is provided with a hollowed-out area corresponding to a predetermined area of at least one battery piece, the driving portion in the doctor blade assembly drives the doctor blade to move from a first end to a second end of the screen so as to spread the conductive material supplied by the conductive material supply portion over the whole area of the screen, and the conductive material in the hollowed-out area is spread over the predetermined area of the corresponding battery piece below the hollowed-out area.
8. A lamination machine, the lamination machine comprising: the screen printing apparatus of any of claims 1 to 7, a magazine, a first loading section, a first conveying device, a second conveying device, a first welding device, and a second welding device, the magazine, the first loading section, and the first conveying device being located in a front lane of the first loading device, the second conveying device and the first welding device being located in a rear lane of the first blanking device, wherein:
The first feeding part is used for placing a group of battery pieces picked up from the storage box on the first conveying device, wherein the a group of battery pieces comprise an ith a group of battery pieces and an (i+1) a group of battery pieces … an (i+j) a group of battery pieces, and i and j are nonzero natural numbers;
The first blanking device in the screen printing device conveys the ith a th group of battery pieces printed with the conductive materials by the transfer device to the second conveying device;
The first welding device is used for welding the ith a th group of battery pieces on the second conveying device;
A second blanking device in the screen printing device conveys the ith b th group of battery pieces printed with the conductive materials by the transfer device to a fourth conveying device;
and the second welding device is used for welding the ith b th group of battery pieces on the fourth conveying device.
9. The lamination machine of claim 8, further comprising a second loading section and a third conveying device, the second loading section and the third conveying device being located in a front lane of the second loading device, the fourth conveying device and the second welding device being located in a rear lane of the second unloading device, wherein:
The second feeding part places b groups of battery pieces picked up from the storage box on the third conveying device, wherein the b groups of battery pieces comprise an ith b group of battery pieces and an (i+1) b group of battery pieces … an (i+j) b group of battery pieces, and i and j are nonzero natural numbers.
10. A screen printing method, characterized by being applied to the screen printing apparatus according to any one of claims 1 to 7, comprising:
The first feeding device places the ith a group of battery pieces picked up from the first conveying device on the transfer device at a first loading and unloading position;
The transfer device conveys the ith a th group of battery pieces to the position of the screen printing device, and the screen printing device performs screen printing on the ith a th group of battery pieces positioned below to brush conductive materials on the preset area of the ith a th group of battery pieces;
The transfer device conveys the ith a th group of battery pieces printed with the conductive material to the first loading and unloading position, and the first blanking device moves away the ith a th group of battery pieces printed with the conductive material at the first loading and unloading position;
When the first feeding device places the (i+2) a th group of battery pieces picked up from the first conveying device on the transfer device at the first loading and unloading position, the second feeding device places the i b th group of battery pieces picked up from the third conveying device on the transfer device at the second loading and unloading position;
The screen printing device simultaneously prints conductive materials on the ith a group of battery pieces placed on the transfer device by the first feeding device and the ith b group of battery pieces placed on the transfer device by the second feeding device;
after the first blanking device moves the ith a th group of battery pieces printed with the conductive materials away from the first feeding and blanking position, the first feeding device places the (i+1) a th group of battery pieces picked up by the first conveying device on the transfer device;
After the second blanking device removes the ith b th group of battery pieces printed with the conductive material at the second loading and blanking position, the second loading device places the (i+1) b th group of battery pieces picked up by the third conveying device on the transfer device;
Where i is a non-zero natural number.
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| CN109616548B (en) * | 2018-11-06 | 2021-02-09 | 无锡奥特维科技股份有限公司 | Battery piece lamination equipment and battery piece lamination processing system |
| CN109367206A (en) * | 2018-11-07 | 2019-02-22 | 无锡奥特维科技股份有限公司 | Screen printing apparatus and cell piece lamination system |
| CN109494282B (en) * | 2018-12-11 | 2024-07-02 | 无锡先导智能装备股份有限公司 | Silk screen glue printing device and method thereof |
| CN109742193B (en) * | 2019-02-26 | 2023-12-08 | 苏州辰正太阳能设备有限公司 | Silk screen lamination machine equipment |
| CN110098281B (en) * | 2019-03-12 | 2024-03-01 | 无锡奥特维科技股份有限公司 | Lamination equipment and method |
| CN110289336A (en) * | 2019-06-10 | 2019-09-27 | 成都晔凡科技有限公司 | Imbrication assembly producing system and method |
| CN110335921A (en) * | 2019-07-29 | 2019-10-15 | 无锡先导智能装备股份有限公司 | A kind of printing equipment |
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