A printing device for busbars

Abstract

The application provides a printing device for busbar, which comprises a fixing frame, a conveying mechanism arranged on the fixing frame and comprising two lifting assemblies arranged at intervals along a first direction, the two lifting assemblies being used for lifting a busbar, a printing mechanism installed on the fixing frame and located between the two lifting assemblies, the printing mechanism comprising a first printing assembly and a second printing assembly arranged oppositely and rotatably along a second direction, the first direction being perpendicular to the second direction, a first convex tooth arranged around a shaft being formed on the outer periphery of the second printing assembly, an end of the first convex tooth being formed with a flat surface matching the width of the busbar, and the lower surface of the busbar being in abutment with the flat surface, and an ink injection assembly installed on the fixing frame. The device of the embodiment of the application realizes ink printing on one side of the busbar, prevents the back surface of the busbar from being stained, and improves the production quality of the busbar.

Description

Technical Field

[0001] This invention relates to the field of busbar technology, and in particular to a printing apparatus for busbars. Background Technology

[0002] Busbars are auxiliary materials used in photovoltaic modules to collect current. To prevent glare and for aesthetic purposes, all-black busbars are popular in the European and American markets. Black busbars are made by printing black ink on one side of the busbar.

[0003] Among common printing equipment, spray coating equipment generates significant pollution and waste, while screen printing is unsuitable for continuous long strip printing. Furthermore, because the busbar is thin and narrow, and its lateral bending and yield strength are strictly limited, conventional roller coaters are prone to ink smearing on the back when used for busbar printing, greatly impacting production efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a printing apparatus for a busbar to solve the problem of ink contamination on the back side of the busbar, which leads to a decrease in production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a printing apparatus for a busbar, comprising:

[0006] Fixture;

[0007] The conveying mechanism is mounted on a fixed frame and includes two lifting components spaced apart along a first direction. The two lifting components are used to lift the busbar and drive the busbar to maintain linear motion.

[0008] A printing mechanism, mounted on a fixed frame and located between two support components, includes a first printing component and a second printing component that are rotatably arranged opposite each other along a second direction, the first direction being perpendicular to the second direction, wherein the first printing component is used to be positioned above the busbar and the second printing component is used to be positioned below the busbar.

[0009] A first convex tooth is formed on the outer periphery of the second printing component, which is arranged around the axis and protrudes from the surface of the second printing component. The end of the first convex tooth is formed with a plane that matches the width of the busbar. The lower surface of the busbar abuts against the plane to support the busbar.

[0010] The ink injection assembly, mounted on a fixed frame, is used to spray ink onto the first printing assembly so that the first printing assembly prints ink onto the upper surface of the busbar.

[0011] In one embodiment of the present invention, the first printing component includes:

[0012] A first printing roller has concave teeth formed on its outer periphery, which mesh with first convex teeth to confine the busbar between the concave teeth and the first convex teeth.

[0013] In one embodiment of the present invention, the second printing component includes:

[0014] The second printing roller has a first convex tooth on it, and the rotation direction of the second printing roller is synchronous with and opposite to that of the first printing roller.

[0015] In one embodiment of the present invention, the first printing component further includes:

[0016] The third printing roller has a second convex tooth that meshes with the concave tooth. The rotation direction of the third printing roller is synchronous with and opposite to that of the first printing roller. The second convex tooth is used to uniformly coat the ink onto the concave tooth of the first printing roller.

[0017] In one embodiment of the present invention, it further includes:

[0018] The gap adjustment mechanism, mounted on the fixed frame and connected to the printing mechanism, is used to adjust the gap between the concave teeth and the convex teeth of the first printing roller, as well as the gap between the first printing roller and the third printing roller, so as to control the coating thickness of the busbar.

[0019] In one embodiment of the present invention, the lifting component includes:

[0020] The lifting roller is mounted on a fixed frame and has a groove for accommodating the busbar. The groove is used to lift and restrict the busbar.

[0021] In one embodiment of the present invention, a first printing roller is provided with a plurality of concave teeth spaced apart along its axial direction;

[0022] The second printing roller has multiple first convex teeth spaced apart along its axial direction, and multiple concave teeth correspond one-to-one with multiple first convex teeth.

[0023] In one embodiment of the present invention, the conveying mechanism further includes:

[0024] The motor, connected to the lifting roller via a transport wheel, drives the lifting roller to rotate, thereby moving the busbar.

[0025] In one embodiment of the present invention, the conveying mechanism further includes:

[0026] The speed control component, connected to the motor, is used to control the rotational speed of the motor shaft in order to control the moving speed of the busbar.

[0027] In one embodiment of the present invention, the conveying mechanism further includes a display component for displaying speed information.

[0028] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0029] The busbar printing apparatus of this invention, by setting up a printing mechanism and a conveying mechanism, achieves ink printing on one side of the busbar. Compared with the conventional device where the back of the busbar is prone to ink splattering during the printing process, this invention, by setting a first convex tooth on the second printing component, in conjunction with the first printing component, can prevent the back of the busbar from being splattered with ink, reduce the lateral bending of the busbar, and improve production quality and efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the busbar printing apparatus according to an embodiment of the present invention. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the structure of the busbar printing apparatus according to an embodiment of the present invention. Figure 2 ;

[0032] Figure 3 This is a top view of the busbar printing apparatus according to an embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional view of a busbar printing apparatus according to an embodiment of the present invention.

[0034] Figure label:

[0035] 100. Printing device for busbar; 10. Fixing frame; 20. Conveying mechanism; 21. Lifting roller; 30. Printing mechanism; 31. First printing roller; 311. Concave tooth; 32. Second printing roller; 321. First convex tooth; 33. Third printing roller; 331. Second convex tooth; 40. Ink injection assembly; 50. Gap adjustment mechanism. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0037] The printing apparatus for a busbar according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of the structure of the busbar printing apparatus 100 according to an embodiment of the present invention is shown. Figure 1 . Figure 2 A schematic diagram of the structure of the busbar printing apparatus 100 according to an embodiment of the present invention is shown. Figure 2 . Figure 3 A top view of a busbar printing apparatus 100 according to an embodiment of the present invention is shown.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, the busbar printing apparatus 100 includes a mounting frame 10, a conveying mechanism 20, a printing mechanism 30, and an ink injection assembly 40.

[0040] The conveying mechanism 20 is mounted on the fixed frame 10 and includes two lifting components spaced apart along a first direction. These two lifting components lift the busbar and maintain its linear motion. The printing mechanism 30 is mounted on the fixed frame 10 and located between the two lifting components. The printing mechanism 30 includes a first printing component and a second printing component that are rotatably arranged opposite each other along a second direction. In embodiments of the present invention, the first direction can be perpendicular to the second direction or form a certain angle. The first printing component is positioned above the busbar, and the second printing component is positioned below the busbar. A first convex tooth 321 is formed on the outer periphery of the second printing component, extending around an axis and protruding from the surface of the second printing component. The end of the first convex tooth 321 forms a plane matching the width of the busbar, and the lower surface of the busbar abuts against the plane to support the busbar. An ink-spraying component 40 is mounted on the fixed frame 10 and is used to spray ink onto the first printing component, so that the first printing component prints ink onto the upper surface of the busbar.

[0041] In embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the mounting frame 10 is a hollow shell used to support the weight of the printing apparatus. By cooperating with the conveying mechanism 20 and the printing mechanism 30, the linear movement of the busbar is maintained, and during ink injection by the inking assembly 40, smooth printing is achieved on the side of the busbar facing the first printing assembly. The busbar is located between the first and second printing assemblies, and the vertical space of the busbar is limited based on the gap between the two assemblies, preventing localized lateral bending of the busbar. Furthermore, since the first convex tooth 321 protrudes from the outer periphery of the second printing assembly, the busbar located at the end plane of the first convex tooth 321 is higher than other parts of the second printing assembly. Ink on the surface of the second printing assembly will not smudge onto this area as the second printing assembly rotates. Compared to existing printing apparatuses where ink easily accumulates on the back of the busbar during printing, the embodiment of this invention prevents ink from accumulating on the back of the busbar, greatly improving production quality.

[0042] In one embodiment of the present invention, such as Figure 2 As shown, the first printing assembly includes a first printing roller 31. A concave tooth 311 is formed on the outer periphery of the first printing roller 31. The concave tooth 311 meshes with a first convex tooth 321 to confine the busbar between the concave tooth 311 and the first convex tooth 321, which can prevent the busbar from running and thus maintain the stability of the busbar during the printing process.

[0043] In one embodiment of the present invention, such as Figure 2 As shown, the second printing assembly includes a second printing roller 32, with a first convex tooth 321 disposed on the second printing roller 32. The rotation direction of the second printing roller 32 is synchronous with and opposite to the rotation direction of the first printing roller 31. The first printing roller 31 and the second printing roller 32, located on both sides of the busbar, cooperate to push the busbar forward in one direction.

[0044] In one embodiment of the present invention, such as Figure 3 As shown, the first printing assembly also includes a third printing roller 33, which has second convex teeth 331 that mesh with concave teeth 311. The rotation direction of the third printing roller 33 is synchronous with and opposite to that of the first printing roller 31. Ink injection assembly (such as...) Figure 1 The inkjet part of the ink injection assembly 40) is aligned with the meshing point of the concave tooth 311 and the second convex tooth 331. The second convex tooth 331 evenly coats the ink onto the concave tooth 311 of the first printing roller 31, so that the ink adhering to the first printing roller 31 can coat the busbar.

[0045] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the busbar printing apparatus 100 also includes a gap adjustment mechanism 50, which is mounted on the fixed frame 10 and connected to the printing mechanism 30. It is used to adjust the gap between the concave teeth 311 and the first convex teeth 321 of the first printing roller 31 and the gap between the first printing roller 31 and the third printing roller 33, so as to control the coating thickness of the busbar and make the busbar printing more uniform.

[0046] In one embodiment of the present invention, reference is made to... Figure 4 , Figure 4 A cross-sectional view of a busbar printing apparatus 100 according to an embodiment of the present invention is shown. Figure 4 As shown, the lifting assembly includes a lifting roller 21, which is mounted on a fixed frame (such as...). Figure 1 On the fixed frame 10), the lifting roller 21 is provided with a groove for accommodating the busbar, the groove being used to lift and restrict the busbar. In addition, there may be multiple lifting rollers 21, and the present invention does not impose a unique limitation on the number of lifting rollers 21.

[0047] In one embodiment of the present invention, such as Figure 2As shown, the first printing roller 31 has a plurality of concave teeth 311 spaced apart along its axial direction. The second printing roller 32 has a plurality of first convex teeth 321 spaced apart along its axial direction. The plurality of concave teeth 311 correspond one-to-one with the plurality of first convex teeth 321, so that the printing device can print multiple busbars simultaneously, preventing the busbars from crossing or overlapping, and greatly improving production efficiency.

[0048] In one embodiment of the invention, the printing apparatus further includes a controller connected to the conveying mechanism 20. The conveying mechanism 20 also includes a motor connected to the lifting roller 21 via a transport wheel. Under the control of the controller, the motor drives the lifting roller 21 to rotate, thereby moving the busbar.

[0049] In one embodiment of the present invention, the conveying mechanism 20 further includes a speed control component, which is connected to a controller and a motor. An operator operates the speed control component, and the controller can control the rotational speed of the motor shaft to control the moving speed of the busbar.

[0050] In one embodiment of the invention, the conveying mechanism 20 further includes a display component connected to a controller. The controller can obtain the speed of the motor shaft and send the speed information to the display component, thereby allowing the display component to intuitively display the speed information. The display component can be connected to the ink injection component via the controller to display the ink flow rate. Furthermore, the display component can also adjust the feed rate of the busbar and the ink flow rate via the controller. The display component can be a touch screen.

[0051] The working principle of the busbar printing device 100 according to an embodiment of the present invention will be explained below.

[0052] The ink injection assembly 40 sprays ink onto the first printing roller 31. The second convex tooth 331 on the third printing roller 33 rotates in conjunction with the concave tooth 311 on the first printing roller 31, evenly coating the ink onto the concave tooth 311. Driven by a motor, the lifting roller 21 transports the busbar to the first convex tooth 321 of the second printing roller 32, whereby the concave tooth 311 on the first printing roller 31 engages with the first convex tooth 321 to coat one side of the busbar with ink, thus achieving printing on the busbar. By adjusting the gap adjustment mechanism 50, the thickness of the ink on the concave tooth 311 and the distance between the concave tooth 311 and the first convex tooth 321 can be adjusted.

[0053] In summary, the busbar printing apparatus 100 of this embodiment of the invention, by setting up a printing mechanism 30 and a conveying mechanism 20, achieves ink printing on one side of the busbar. Simultaneously, by setting a first convex tooth 321 on the second printing component, in conjunction with the first printing component, ink can be prevented from adhering to the back side of the busbar, and the lateral bending of the busbar is reduced, thereby improving production quality and efficiency.

[0054] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0055] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A printing device for a busbar, characterized in that, include: Fixture; The conveying mechanism, mounted on the fixed frame, includes two lifting components spaced apart along a first direction. The two lifting components are used to lift the busbar and drive the busbar to maintain linear motion. A printing mechanism, mounted on the fixed frame and located between the two supporting components, includes a first printing component and a second printing component that are rotatably arranged opposite each other along a second direction, the first direction being perpendicular to the second direction, wherein the first printing component is disposed above the busbar and the second printing component is disposed below the busbar. The first printing assembly includes: a first printing roller, on the outer periphery of which concave teeth are formed, the concave teeth engaging with first convex teeth to confine the busbar between the concave teeth and the first convex teeth; The outer periphery of the second printing component has a first convex tooth that is arranged around an axis and protrudes from the surface of the second printing component. The end of the first convex tooth has a plane that matches the width of the busbar. The lower surface of the busbar abuts against the plane to support the busbar. The ink injection assembly, mounted on the mounting frame, is used to spray ink onto the first printing assembly, so that the first printing assembly prints ink onto the upper surface of the busbar.

2. The printing apparatus for a busbar according to claim 1, characterized in that, The second printing component includes: The second printing roller has the first convex tooth disposed on it, and the rotation direction of the second printing roller is synchronous with and opposite to that of the first printing roller.

3. The printing apparatus for a busbar according to claim 2, characterized in that, The first printing component also includes: The third printing roller has a second convex tooth that meshes with the concave tooth. The rotation direction of the third printing roller is synchronous with and opposite to that of the first printing roller. The second convex tooth is used to uniformly coat the ink onto the concave tooth of the first printing roller.

4. The printing apparatus for a busbar according to claim 3, characterized in that, Also includes: A gap adjustment mechanism, mounted on the fixed frame and connected to the printing mechanism, is used to adjust the gap between the concave teeth and the convex teeth of the first printing roller and the gap between the first printing roller and the third printing roller, so as to control the coating thickness of the busbar.

5. The printing apparatus for a busbar according to claim 1, characterized in that, The lifting component includes: A lifting roller is mounted on the fixed frame. The lifting roller has a groove for accommodating the busbar. The groove is used to lift and restrict the busbar.

6. The printing apparatus for a busbar according to claim 1, characterized in that, The first printing roller has a plurality of concave teeth spaced apart along its axial direction; The second printing roller is provided with a plurality of the first convex teeth at intervals along its axial direction, and the plurality of concave teeth correspond one-to-one with the plurality of the first convex teeth.

7. The printing apparatus for a busbar according to claim 5, characterized in that, The conveying mechanism further includes: The motor is connected to the lifting roller via a transport wheel and is used to drive the lifting roller to rotate, thereby moving the busbar.

8. The printing apparatus for a busbar according to claim 7, characterized in that, The conveying mechanism further includes: A speed control component, connected to the motor, is used to control the rotational speed of the motor shaft in order to control the moving speed of the busbar.

9. The printing apparatus for a busbar according to claim 8, characterized in that, The conveying mechanism also includes a display component for displaying speed information.

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