Silver paste printing device for LECO process

Abstract

The utility model relates to a silver paste printing device for an LECO process, which comprises a working table, a supporting plate is fixedly mounted at the top of the working table, and a mounting plate is fixedly mounted at the top of the supporting plate. According to the silver paste printing device for the LECO process, by arranging the pre-drying mechanism, after a cell panel is printed, the height of an air blowing cover can be adjusted according to the thickness of the cell panel, an electric telescopic rod is controlled to drive the air blowing cover to move so that the air blowing cover can be located at the top of the cell panel, then an air heater is started, the air heater conveys hot air into the air blowing cover, and then the hot air is blown out through an air blowing nozzle; meanwhile, an electric sliding rail is controlled to drive a blowing cover to reciprocate so as to dry the surface of the battery panel, and when a worker observes that the surface of the battery panel is dried unevenly, the electric sliding rail is controlled to drive the blowing cover to move to the position above the position, and the position of the blowing cover is kept fixed so that the position can be dried intensively; and the surface of the battery panel can be accurately dried.

Description

Technical Field

[0001] The utility model relates to the technical field of silver paste printing, in particular to a silver paste printing device for LECO process. Background Art

[0002] LECO is an advanced laser sintering technology used to improve the contact between metal electrodes and silicon wafers in solar cells. When processing solar panels, silver paste with conductive function needs to be printed on the panels to enable the flow of current, so a silver paste printing device is required for processing.

[0003] Existing solar panels need to be pre-dried after screen printing. However, due to the uneven thickness of the slurry during printing, the drying conditions of various positions on the surface of the solar panel are different during drying. If a certain part of the solar panel is not dried well, the entire solar panel needs to be dried twice, which is not convenient for accurate drying of the imperfectly dried parts. Therefore, a silver paste printing device for LECO process is proposed to solve the above problem. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a silver paste printing device for the LECO process, which has the advantages of being convenient for accurately drying the surface of the solar panel in different zones, and solves the problem of being inconvenient for accurately drying the imperfectly dried areas when the drying conditions are different.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a silver paste printing device for LECO process, comprising a workbench, a support plate is fixedly installed on the top of the workbench, a mounting plate is fixedly installed on the top of the support plate, a cylinder is fixedly installed on the mounting plate, a printing screen is arranged on the bottom of the cylinder, and a pre-drying mechanism is arranged on the workbench;

[0008] The pre-drying mechanism includes a fixed plate, an electric slide rail, a hot air blower, an air duct, a blow hood, a connecting plate and an electric telescopic rod. The top of the workbench is fixedly installed with a fixed plate, the front side wall of the fixed plate is embedded with an electric slide rail, the rear side of the workbench is provided with a hot air blower, the air outlet of the hot air blower is fixedly connected with an air duct, the end of the air duct away from the hot air blower is connected with a blow hood, the front side of the electric slide rail is fixedly installed with a connecting plate, and the electric telescopic rod is fixedly installed on the connecting plate.

[0009] Furthermore, the free end of the electric telescopic rod is fixedly connected to the blowing hood, and a plurality of blowing nozzles are arranged at the bottom of the blowing hood.

[0010] Furthermore, a sliding hole is provided on the fixing plate, and the front end of the air supply pipe passes through the fixing plate through the sliding hole.

[0011] Furthermore, the air supply pipe is a retractable hose, and one end of the air supply pipe away from the hot air blower passes through the connecting plate and extends to the bottom of the connecting plate.

[0012] Furthermore, the air supply pipe is fixedly connected to the connecting plate, and four supporting legs are fixedly installed on the bottom of the workbench.

[0013] Furthermore, a bottom plate is fixedly installed on the rear side of the workbench, and the top of the bottom plate is fixedly connected to the hot air blower.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The silver paste printing device for the LECO process is provided with a pre-drying mechanism. After the printing of the battery panel is completed, the height of the blow hood can be adjusted according to the thickness of the battery panel, and the electric telescopic rod is controlled to drive the blow hood to move so that it is located on the top of the battery panel. Then the hot air blower is turned on to convey hot air into the blow hood, which is then blown out by the blow nozzle. At the same time, the electric slide rail is controlled to drive the blow hood to move back and forth to dry the surface of the battery panel. When the staff observes that the surface of the battery panel is unevenly dried, the electric slide rail is controlled to drive the blow hood to move above that place and keep the position of the blow hood fixed so as to strengthen the drying of that place, thereby accurately drying the surface of the battery panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the utility model;

[0018] Figure 2 It is a left side sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.

[0020] In the figure: 1 workbench, 2 support plate, 3 mounting plate, 4 cylinder, 5 printing screen, 6 pre-drying mechanism, 601 fixing plate, 602 electric slide rail, 603 hot air blower, 604 air duct, 605 blowing hood, 606 connecting plate, 607 electric telescopic rod, 7 blowing nozzle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 A silver paste printing device for LECO process in this embodiment includes a workbench 1, a support plate 2 is fixedly installed on the top of the workbench 1, a mounting plate 3 is fixedly installed on the top of the support plate 2, a cylinder 4 is fixedly installed on the mounting plate 3, a printing screen 5 is arranged at the bottom of the cylinder 4, and a pre-drying mechanism 6 is arranged on the workbench 1.

[0023] Specifically, a fixing plate 601 is fixedly installed on the top of the workbench 1, an electric slide rail 602 is embedded in the front side wall of the fixing plate 601, a hot air blower 603 is arranged on the rear side of the workbench 1, an air outlet of the hot air blower 603 is fixedly connected with an air delivery pipe 604, an end of the air delivery pipe 604 away from the hot air blower 603 is connected with a blow hood 605, a connecting plate 606 is fixedly installed on the front side of the electric slide rail 602, and an electric telescopic rod 607 is fixedly installed on the connecting plate 606. By setting the pre-drying mechanism 6, when the solar panel is printed, the height of the blow hood 605 can be adjusted according to the thickness of the solar panel. The electric telescopic rod 607 is controlled to drive the blowing hood 605 to move so that it is located on the top of the solar panel, and then the hot air blower 603 is turned on. The hot air blower 603 conveys hot air into the blowing hood 605, and then blows it out from the blowing nozzle 7. At the same time, the electric slide rail 602 is controlled to drive the blowing hood 605 to move back and forth to dry the surface of the solar panel. When the staff observes that the surface of the solar panel is unevenly dried, the electric slide rail 602 is controlled to drive the blowing hood 605 to move above that place and keep the position of the blowing hood 605 fixed so as to strengthen the drying of that place, so that the surface of the solar panel can be accurately dried.

[0024] Specifically, a sliding hole is provided on the fixed plate 601, and the front end of the air supply pipe 604 passes through the fixed plate 601 through the sliding hole. When the electric slide rail 602 drives the blowing hood 605 to move back and forth, the air supply pipe 604 moves in the sliding hole.

[0025] Specifically, the air duct 604 is a retractable hose. The end of the air duct 604 away from the hot air blower 603 passes through the connecting plate 606 and extends to the bottom of the connecting plate 606. The retractable hose can adapt to the blowing hood 605 for reciprocating movement. At the same time, the part of the air duct 604 located at the bottom of the connecting plate 606 can still be retracted, and the retractable range is the moving range of the free end of the electric telescopic rod 607.

[0026] Specifically, four supporting legs are fixedly installed at the bottom of the workbench 1, and the supporting legs can support the workbench.

[0027] Specifically, a bottom plate is fixedly installed on the rear side of the workbench 1 , and the top of the bottom plate is fixedly connected to the hot air blower 603 , so that the bottom plate can support the hot air blower 603 .

[0028] The silver paste printing device is convenient for accurately drying the surface of a workpiece and can be widely promoted in applicable fields, such as LECO process, touch screen production, etc.

[0029] When implementing, follow these steps:

[0030] 1) First, place the solar panel on the top of the workbench 1 and on the bottom of the printing screen 5, then control the cylinder 4 to drive the printing screen 5 to move downward to complete the silver paste printing on the surface of the solar panel;

[0031] 2) After printing is completed, the cylinder 4 is controlled to drive the printing screen 5 to move upward, and the height of the blowing hood 605 is adjusted according to the thickness of the solar panel. The electric telescopic rod 607 is controlled to drive the blowing hood 605 to move so that it is located on the top of the solar panel;

[0032] 3) Finally, the hot air blower 603 is turned on, and the hot air blower 603 delivers hot air into the blowing hood 605, which is then blown out by the blowing nozzle 7. At the same time, the electric slide rail 602 is controlled to drive the blowing hood 605 to move back and forth to dry the surface of the solar panel.

[0033] In summary, the silver paste printing device for the LECO process is provided with a pre-drying mechanism 6. After the printing of the battery panel is completed, the height of the blow hood 605 can be adjusted according to the thickness of the battery panel, and the electric telescopic rod 607 is controlled to drive the blow hood 605 to move so that it is located on the top of the battery panel, and then the hot air blower 603 is turned on. The hot air blower 603 conveys hot air into the blow hood 605, and then blows it out from the blow nozzle 7. At the same time, the electric slide rail 602 is controlled to drive the blow hood 605 to move back and forth to dry the surface of the battery panel. When the staff observes that the surface of the battery panel is unevenly dried, the electric slide rail 602 is controlled to drive the blow hood 605 to move above that place and keep the position of the blow hood 605 fixed so as to strengthen the drying of that place, and the surface of the battery panel can be accurately dried.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silver paste printing device for LECO process, comprising a workbench (1), characterized in that: A support plate (2) is fixedly mounted on the top of the workbench (1), a mounting plate (3) is fixedly mounted on the top of the support plate (2), a cylinder (4) is fixedly mounted on the mounting plate (3), a printing screen (5) is arranged at the bottom of the cylinder (4), and a pre-drying mechanism (6) is arranged on the workbench (1); The pre-drying mechanism (6) comprises a fixed plate (601), an electric slide rail (602), a hot air blower (603), an air duct (604), a blow hood (605), a connecting plate (606) and an electric telescopic rod (607). The top of the workbench (1) is fixedly mounted with the fixed plate (601), the front side wall of the fixed plate (601) is embedded with the electric slide rail (602), the rear side of the workbench (1) is provided with a hot air blower (603), the air outlet of the hot air blower (603) is fixedly connected with the air duct (604), the end of the air duct (604) away from the hot air blower (603) is connected with the blow hood (605), the front side of the electric slide rail (602) is fixedly mounted with a connecting plate (606), and the electric telescopic rod (607) is fixedly mounted on the connecting plate (606).

2. The silver paste printing device for LECO process according to claim 1, characterized in that: The free end of the electric telescopic rod (607) is fixedly connected to the blowing hood (605), and a plurality of blowing nozzles (7) are arranged at the bottom of the blowing hood (605).

3. The silver paste printing device for LECO process according to claim 1, characterized in that: The fixing plate (601) is provided with a sliding hole, and the front end of the air supply pipe (604) passes through the fixing plate (601) through the sliding hole.

4. The silver paste printing device for LECO process according to claim 1, characterized in that: The air supply pipe (604) is a retractable hose, and one end of the air supply pipe (604) away from the hot air blower (603) passes through the connecting plate (606) and extends to the bottom of the connecting plate (606).

5. The silver paste printing device for LECO process according to claim 1, characterized in that: The air supply pipe (604) is fixedly connected to the connecting plate (606), and four supporting feet are fixedly installed on the bottom of the workbench (1).

6. The silver paste printing device for LECO process according to claim 1, characterized in that: A bottom plate is fixedly mounted on the rear side of the workbench (1), and the top of the bottom plate is fixedly connected to the hot air blower (603).

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