Rubber coating wheel

Abstract

The embodiment of the utility model provides a rubber coating wheel, and relates to the technical field of battery piece rubber coating equipment. The rubber coating wheel comprises a body, a plurality of rubber outlet grooves are sequentially formed in the body in the axis direction of the body, a containing space for containing mucilage glue is formed in the body, and each rubber outlet groove is communicated with the containing space. And through the multiple glue outlet grooves, when the battery piece is glued, multiple edges can be glued, and the gluing efficiency of the battery piece is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery cell coating equipment, and more specifically, to a coating wheel. Background Technology

[0002] After fabricating a conductive film, an additional copper film of a certain thickness (around 100 nm) is prepared on amorphous silicon solar cells, which can then be used to fabricate heterojunction solar cells with copper grid lines. A copper seed layer is prepared on the copper film. After exposure and development of the designated electrode pattern areas, copper grid lines can be grown by electroplating where needed. To prevent the grid lines from detaching due to the electroplating solution penetrating the copper seed layer at the cell edges, or from short-circuiting the front and back of the cell due to side copper plating, the edges of the solar cell need to be coated with adhesive before preparing the copper seed layer. Therefore, an adhesive coating roller is an important piece of equipment for facilitating the adhesive coating process on the solar cells.

[0003] The inventors discovered that some existing rubber-coating wheels only have one glue outlet, which means they can only apply glue to one edge at a time, resulting in low efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a coating wheel that can improve the coating efficiency of battery cells.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a rubber-coated wheel, comprising:

[0007] The main body has multiple glue dispensing grooves arranged sequentially along its own axis, and a receiving space for holding the adhesive is provided inside the main body, with each glue dispensing groove connected to the receiving space.

[0008] In an optional implementation, the number of dispensing slots is two, namely a first dispensing slot and a second dispensing slot.

[0009] In an optional embodiment, the body includes a first shaft segment and a second shaft segment arranged sequentially along the axial direction. The radial dimension of the first shaft segment is larger than that of the second shaft segment. The outer peripheral wall of the second shaft segment is provided with a first annular boss and a second annular boss spaced apart along the axial direction. The first annular boss is closer to the first shaft segment than the second annular boss. The first annular boss, the outer peripheral wall of the first shaft segment and the second shaft segment together define a first glue outlet groove. The first annular boss, the second annular boss and the outer peripheral wall of the second shaft segment together define a second glue outlet groove.

[0010] In an optional embodiment, the first shaft segment includes a first end plate and a second end plate arranged at intervals along the axial direction and disposed opposite to each other. The second end plate is close to the first annular boss relative to the first end plate. The second end plate has a first glue outlet hole, and the first glue outlet groove communicates with the accommodating space through the first glue outlet hole.

[0011] In an optional embodiment, the first annular boss has a glue leakage hole, and the first glue outlet groove and the second glue outlet groove are connected through the glue leakage hole.

[0012] In an optional embodiment, the glue leakage hole is tilted toward the axis away from the body in the direction close to the second annular boss.

[0013] In an optional embodiment, the outer peripheral wall of the second shaft segment is provided with a plurality of second glue outlet holes corresponding to the second glue outlet groove, and the second glue outlet groove is connected to the accommodating space through the second glue outlet holes.

[0014] In an optional embodiment, a first cavity is provided in the first shaft segment, and a second cavity is provided in the second shaft segment. The first cavity and the second cavity are interconnected. The radial dimension of the first cavity is greater than the radial dimension of the second cavity. The first cavity and the second cavity together define an accommodating space.

[0015] In an optional implementation, the first cavity and the second cavity are coaxially arranged.

[0016] In an optional embodiment, the end wall of the first cavity of the second shaft segment is provided with a protrusion, the outer peripheral wall of the protrusion has a preset gap with the inner wall of the first cavity, and the outer peripheral wall of the protrusion is coaxially arranged with the first cavity.

[0017] This utility model provides a coating wheel comprising a body, with multiple adhesive dispensing grooves sequentially arranged along its own axis. The body contains a receiving space for holding adhesive, and each adhesive dispensing groove communicates with the receiving space. By using multiple adhesive dispensing grooves, adhesive can be applied to multiple edges of the battery cells during coating, improving the efficiency of coating the battery cells. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the rubber-coated wheel from a first-view perspective, provided in an embodiment of the present invention.

[0020] Figure 2This is a schematic diagram of the structure of the rubber-coated wheel from a second perspective, provided in an embodiment of the present invention.

[0021] Figure 3 for Figure 2 A cross-sectional schematic diagram.

[0022] Icons: 1- Rubber-coated wheel; 100- Body; 110- First shaft section; 111- First end plate; 1110- Liquid inlet; 112- Second end plate; 1120- First glue outlet; 120- Second shaft section; 121- Second glue outlet; 130- First annular boss; 131- Glue leakage hole; 140- Second annular boss; 150- First glue outlet groove; 160- Second glue outlet groove; 170- Accommodation space; 180- Protrusion. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0029] Please refer to the accompanying drawings for a detailed description of the specific structure of a rubber-coated wheel provided in this utility model embodiment and the corresponding technical effects it brings.

[0030] Please refer to Figures 1-3 The present invention provides a rubber-coated wheel 1 including a body 100, a plurality of glue dispensing grooves arranged sequentially along its own axis, and a receiving space 170 for accommodating adhesive inside the body 100, and each glue dispensing groove is connected to the receiving space 170.

[0031] Understandably, since each dispensing groove is connected to the accommodating space 170, during the rotation of the coating wheel 1 around its own axis, the adhesive in the accommodating space 170 can enter the dispensing groove due to centrifugal force. Since this embodiment has multiple dispensing grooves, when applying adhesive to the battery cell, adhesive can be applied to multiple edges, thus improving the efficiency of applying adhesive to the battery cell.

[0032] It should be noted that "multiple" in this embodiment can be understood as two or more quantities.

[0033] In detail, this embodiment has two glue dispensing grooves, namely a first glue dispensing groove 150 and a second glue dispensing groove 160. It can be understood that by setting the first glue dispensing groove 150 and the second glue dispensing groove 160, glue can be applied to both sides simultaneously. For example, during glue application, two battery cells can be spaced apart along the axis of the coating wheel 1, with each battery cell corresponding to the first glue dispensing groove 150 and the second glue dispensing groove 160 respectively. Therefore, by using the first glue dispensing groove 150 and the second glue dispensing groove 160, glue can be applied to one side of both battery cells simultaneously, improving the efficiency of glue application to the battery cells.

[0034] Specifically, the body 100 includes a first shaft segment 110 and a second shaft segment 120 arranged sequentially along the axial direction. The radial dimension of the first shaft segment 110 is larger than that of the second shaft segment 120. The outer peripheral wall of the second shaft segment 120 is provided with a first annular boss 130 and a second annular boss 140 spaced apart along the axial direction. The first annular boss 130 is closer to the first shaft segment 110 than the second annular boss 140. The outer peripheral walls of the first annular boss 130, the first shaft segment 110 and the second shaft segment 120 together define a first glue outlet groove 150. The outer peripheral walls of the first annular boss 130, the second annular boss 140 and the second shaft segment 120 together define a second glue outlet groove 160.

[0035] The first shaft segment 110 includes a first end plate 111 and a second end plate 112 arranged axially at intervals and disposed opposite to each other. The second end plate 112 is close to the first annular boss 130 relative to the first end plate 111. The second end plate 112 has a first glue outlet hole 1120. The first glue outlet groove 150 is connected to the accommodating space 170 through the first glue outlet hole 1120. The axis of the first glue outlet hole 1120 is parallel to the axis of the rubber-coated wheel 1. That is to say, in this embodiment, the adhesive in the accommodating space 170 will overflow into the first glue outlet groove 150 through the first glue outlet hole 1120, rather than overflowing into the first glue outlet groove 150 from the side of the first glue outlet groove 150 that is close to the axis of the rubber-coated wheel 1.

[0036] It should be noted that in this embodiment, there are multiple first glue outlet holes 1120, and the multiple first glue outlet holes 1120 are evenly spaced along the circumference of the first end plate 111.

[0037] It should be noted that in this embodiment, a first cavity is provided in the first shaft segment 110, and a second cavity is provided in the second shaft segment 120. The first cavity and the second cavity are interconnected. The radial dimension of the first cavity is greater than the radial dimension of the second cavity. The first cavity and the second cavity together define the accommodating space 170.

[0038] It should be noted that, in order to ensure that the first glue dispensing groove 150 and the second glue dispensing groove 160 dispense glue relatively evenly, in this embodiment, the first cavity and the second cavity are coaxially arranged.

[0039] It should be noted that a protrusion 180 protrudes from the end wall of the first cavity of the second shaft segment 120. The outer peripheral wall of the protrusion 180 has a preset gap with the inner wall of the first cavity. The outer peripheral wall of the protrusion 180 is coaxially arranged with the first cavity. It can be understood that by setting the protrusion 180, the volume of adhesive contained in the accommodating space 170 can be reduced. Figure 1 For reference, the axis of the rubber-coated wheel 1 is parallel to the height direction, and the height dimension of the first shaft section 110 is higher than the height dimension of the second shaft section 120. Therefore, when adhesive is added to the accommodating space 170, the liquid level of the adhesive is easier to rise and it is also easier to overflow from the first adhesive outlet hole 1120 into the first adhesive outlet groove 150.

[0040] Optionally, the protrusion 180 extends axially into the first cavity of the first shaft segment 110.

[0041] It should be noted that the first end plate 111 of the rubber-coated wheel 1 is also provided with a liquid inlet 1110. The liquid inlet 1110 is used to connect with a pipe. An external adhesive source is used to connect with the liquid inlet 1110 through a pipe so as to deliver the adhesive into the accommodating space 170.

[0042] The first annular boss has a glue leakage hole 131, and the first glue outlet groove 150 and the second glue outlet groove 160 are connected through the glue leakage hole 131. It can be understood that when the coating wheel 1 is upright, [the glue can be dispensed]. Figure 1 For reference, the first glue dispensing groove 150 is located above the second glue dispensing groove 160. Through the setting of the glue leakage hole 131, the adhesive in the first glue dispensing groove 150 will flow downward from the glue leakage hole 131 to the second glue dispensing groove 160, reducing the amount of adhesive in the first glue dispensing groove 150 overflowing radially, avoiding glue waste, and improving the utilization rate of adhesive.

[0043] It should be noted that, in order to further facilitate the flow of adhesive in the first glue outlet 150 through the glue leakage hole 131 to the second glue outlet 160, a plurality of glue leakage holes 131 are provided on the first annular boss, and the plurality of glue leakage holes 131 are evenly spaced along the axial direction of the first annular boss.

[0044] Optionally, in order to facilitate the flow of adhesive in the first glue outlet 150 through the glue leakage hole 131 into the second glue outlet 160, the glue leakage hole 131 is inclined in the direction away from the axis of the body 100 in the direction close to the second annular boss.

[0045] Of course, in some embodiments, the axis of the glue leakage hole 131 may also be parallel to the axis of the body 100.

[0046] Alternatively, in some other embodiments, near the second annular boss, the glue leakage hole 131 is inclined toward the axis direction close to the body 100.

[0047] In this embodiment, the outer peripheral wall of the second shaft segment 120 has a plurality of second glue dispensing holes 121 for the portion of the second glue dispensing groove 160. The second glue dispensing groove 160 communicates with the accommodating space 170 through the second glue dispensing holes 121. It can be understood that in this embodiment, the second glue dispensing groove 160 dispenses glue through the side wall of the second shaft segment 120, while the first glue dispensing groove 150 dispenses glue through the top second end plate 112, thereby ensuring the glue dispensing pressure of the lower second glue dispensing groove 160.

[0048] It should be noted that in this embodiment, there are multiple second glue outlet holes 121, and the multiple second glue outlet holes 121 are evenly spaced along the circumference of the second shaft segment 120.

[0049] Optionally, in this embodiment, the diameter of the second shaft segment 120 is 50mm, the diameter of the second adhesive outlet hole 121 can be 0.3-1mm, and the number of second adhesive outlet holes 121 can be 90-120. Of course, in some other embodiments, the diameter of the second shaft segment 120 can also be other sizes, and the diameter of the second adhesive outlet hole 121 is not limited to 0.3-1mm, but can be greater than 1mm or less than 0.3mm. The number of second adhesive outlet holes 121 is also not limited to 90-120.

[0050] It should be noted that the rubber-coated wheel 1 in this embodiment is an integral structure. That is, the first shaft segment 110, the second shaft segment 120, the protrusion 180, the first annular boss 130 and the second annular boss 140 on the second shaft segment 120 are all parts of the integral rubber-coated wheel 1.

[0051] In summary, this utility model embodiment provides a coating wheel 1, which includes a body 100. The body 100 has multiple adhesive dispensing grooves arranged sequentially along its own axis. The body 100 also has a receiving space 170 for accommodating adhesive, and each adhesive dispensing groove communicates with the receiving space 170. By using multiple adhesive dispensing grooves, adhesive can be applied to multiple edges of the battery cell during coating, improving the efficiency of coating the battery cell.

[0052] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A covered wheel, characterized in that, include: The body has multiple glue dispensing grooves arranged sequentially along its own axial direction, and a receiving space for accommodating adhesive is provided inside the body, with each glue dispensing groove communicating with the receiving space.

2. The rubber-coated wheel according to claim 1, characterized in that: The number of the plurality of dispensing slots is two, namely a first dispensing slot and a second dispensing slot.

3. The rubber-coated wheel according to claim 2, characterized in that: The body includes a first shaft segment and a second shaft segment arranged sequentially along the axial direction. The radial dimension of the first shaft segment is larger than that of the second shaft segment. The outer peripheral wall of the second shaft segment is provided with a first annular boss and a second annular boss spaced apart along the axial direction. The first annular boss is closer to the first shaft segment than the second annular boss. The first annular boss, the outer peripheral wall of the first shaft segment and the second shaft segment together define the first glue outlet groove. The first annular boss, the second annular boss and the outer peripheral wall of the second shaft segment together define the second glue outlet groove.

4. The rubber-coated wheel according to claim 3, characterized in that: The first shaft segment includes a first end plate and a second end plate arranged at intervals along the axial direction and disposed opposite to each other. The second end plate is close to the first annular boss relative to the first end plate. The second end plate has a first glue outlet hole, and the first glue outlet groove communicates with the accommodating space through the first glue outlet hole.

5. The rubber-coated wheel according to claim 3, characterized in that: The first annular boss has a glue leakage hole, and the first glue outlet groove and the second glue outlet groove are connected through the glue leakage hole.

6. The rubber-coated wheel according to claim 5, characterized in that: In the direction close to the second annular boss, the glue leakage hole is inclined toward the axis away from the body.

7. The rubber-coated wheel according to claim 3, characterized in that: The outer peripheral wall of the second shaft segment is provided with a plurality of second glue outlet holes corresponding to the second glue outlet groove, and the second glue outlet groove is connected to the accommodating space through the second glue outlet holes.

8. The rubber-coated wheel according to claim 3, characterized in that: The first shaft segment has a first cavity, and the second shaft segment has a second cavity. The first cavity and the second cavity are interconnected. The radial dimension of the first cavity is greater than the radial dimension of the second cavity. The first cavity and the second cavity together define the accommodating space.

9. The rubber-coated wheel according to claim 8, characterized in that: The first cavity and the second cavity are coaxially arranged.

10. The rubber-coated wheel according to claim 8, characterized in that: The end wall of the first cavity of the second shaft segment is provided with a protrusion. The outer peripheral wall of the protrusion has a preset gap with the inner wall of the first cavity. The outer peripheral wall of the protrusion is coaxially arranged with the first cavity.

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