New grid belt arrangement structure

Abstract

The present invention relates to the field of battery production and discloses a novel grid mesh belt arrangement structure, which is formed by horizontally connecting two rows of multiple grids (1) connected in series. The pole ears (2) of the two rows of grids (1) connected in series are arranged on the outside of the structure in opposite directions. The grid bottom frames (3) of the two rows of grids (1) connected in series are arranged on the inside of the structure in opposite directions, and the two oppositely arranged grid bottom frames (3) are connected by staggered connecting blocks (4) with different heights at both ends. Compared with the existing technology, the present invention effectively improves product quality and qualified rate by rationally designing the arrangement and connection structure of the grids on the grid mesh belt, thereby achieving cost reduction and efficiency improvement.

Description

Technical Field

[0001] The present invention relates to the field of battery production, and in particular to a novel grid mesh belt arrangement structure. Background Art

[0002] The grid is a key component of the battery, carrying the active material and transmitting the current. With the rapid development of science and technology, the traditional semi-mechanized casting grid will gradually be replaced by continuous casting and rolling technology. In most of the current continuous casting and rolling processes, the grid mesh belt consists of two rows of grids 1 connected in series. The tabs 2 of each grid 1 in the two rows of grids 1 are staggered relative to each other on the inner side of the grid mesh belt, such as Figure 1 As shown, the bottom frames 3 of the two rows of grids 2 are arranged on the outside of the grid mesh belt facing each other. This grid mesh belt structure has the following defects:

[0003] When it is necessary to apply lead paste on each grid 1 in the grid mesh belt except for the position of the pole lug 2, since the pole lugs 2 of the two rows of grids 1 are relatively arranged on the inner side of the grid mesh belt, it is inevitable that the lead paste will be squeezed onto each pole lug 2 when applying the lead paste. Once the lead paste sticks to the pole lug 2, it is difficult to brush the pole lug 2 clean, which will seriously affect the welding quality of the grid lug in the subsequent process. Summary of the Invention

[0004] Purpose of the invention: In response to the problems existing in the prior art, the present invention provides a new type of grid mesh belt arrangement structure. By rationally designing the arrangement and connection structure of the grids on the grid mesh belt, the product quality and pass rate are effectively improved, and cost reduction and efficiency improvement are achieved.

[0005] Technical solution: The present invention provides a new type of grid mesh belt arrangement structure, which is composed of two rows of multiple grids connected in series horizontally, and the pole ears of the two rows of grids connected in series are arranged back to back on the outside of the structure; the bottom frames of the two rows of grids connected in series are arranged relatively on the inside of the structure, and the two relatively arranged bottom frames of the grids are connected by staggered connecting blocks with unequal heights at both ends.

[0006] Furthermore, the two ends of the adjacent staggered connection blocks are staggered in height. This means that if the upper end of the previous staggered connection block is connected to the lower part of the upper grid bottom frame and the lower end is connected to the upper part of the lower grid bottom frame, then the upper end of the next staggered connection block is designed to be connected to the upper part of the upper grid bottom frame and the lower end is designed to be connected to the lower part of the lower grid bottom frame. Because the two ends of the staggered connection block are of different heights, the thickness of the two ends of the staggered connection block needs to be thinner than the thickness of the grid bottom frame, and the strength may be lower. In the present invention, the two ends of the adjacent staggered connection blocks are staggered in height, which can improve the strength of the entire staggered connection block.

[0007] Furthermore, the tabs of the two series-connected grids are connected and fixed by connecting bars. Without the connecting bars, the tabs of the two grids would be suspended in the air, which could easily cause the tabs to deform. In the present invention, the tabs of the two grids are connected by connecting bars, which can act as reinforcement ribs and effectively prevent deformation of the grids or tabs. The connecting bars can be removed during subsequent cutting.

[0008] Preferably, the staggered connection block is a "Z"-shaped structure. This structure allows the cutter to sequentially cut the connection points between the staggered connection block and the upper and lower rows of grids along the grid smear feed line. Compared with a straight connection block, this effectively prevents the connection block from being stuck between the two cutters after the cutter cuts off the connection points on both sides at the same time, thus affecting the smooth progress of the subsequent cutting process.

[0009] Preferably, the thickness of the staggered connecting block does not exceed 1 / 2 of the thickness of the bottom frame of the grid. Only when the thickness of the staggered connecting block does not exceed 1 / 2 of the thickness of the bottom frame of the grid can the roller cutter ensure that the ends of the staggered connecting block are cut at different times, effectively avoiding the problem of the roller cutter getting stuck.

[0010] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0011] (1) Arranging the tabs of the two series-connected grids on the outside of the grid mesh belt can effectively prevent the lead paste from being squeezed onto the tabs of the grids on both sides when applying lead paste on the grids.

[0012] (2) The bottom frames of the two columns of grids connected in series are connected through offset connection blocks. In this way, when the grid mesh belt is fed along the grid coating feeding direction, the rolling cutter used to cut the two ends of the offset connection block first cuts the connection point between the higher end of the offset connection block and the bottom frame of one column of grids, and then cuts the connection point between the lower end of the offset connection block and the bottom frame of the other column of grids; since the connection points of the two ends of the offset connection block and the bottom frames of the two columns of grids are not cut at the same time, the defect of the cut connection block being stuck between the two cutting knives due to simultaneous cutting can be effectively avoided, so that subsequent cutting can be carried out smoothly.

[0013] (3) The grid mesh belt structure of the present invention can effectively avoid problems such as grid deformation, carding during slicing, and excess paste on the tabs that occur during the production process, greatly reducing the scrap rate of the grid and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a new type of grid belt arrangement structure in the prior art;

[0015] Figure 2 Schematic diagram of the new grid belt arrangement structure in Implementation 1;

[0016] Figure 3 for Figure 2 Sectional view of the AA plane;

[0017] Figure 4 for Figure 2 Cross-sectional view of the middle BB plane;

[0018] Figure 5 This is an orientation diagram of the smear feeding and rolling cutting mechanism and the new grid mesh belt arrangement structure in embodiment 1;

[0019] Figure 6 for Figure 5 Schematic diagram of the enlarged structure in the middle circle A;

[0020] Figure 7 Schematic diagram of the new grid belt arrangement structure in Implementation Method 2;

[0021] Figure 8 It is an orientation diagram of the smear feeding rolling cutting mechanism and the new grid mesh belt arrangement structure in implementation mode 2. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] Implementation method 1:

[0024] This embodiment provides a new grid belt arrangement structure, such as Figures 2 to 4 As shown, it is composed of two rows of multiple grids 1 connected in series horizontally, and the pole ears 2 of the two rows of grids 1 connected in series are arranged back to back on the outside of the mesh belt structure; the grid bottom frames 3 of the two rows of grids 1 connected in series are arranged relatively on the inside of the structure, and the two relatively arranged grid bottom frames are connected by a "Z"-shaped staggered connecting block 4 with unequal heights at both ends. The thickness of the staggered connecting block 4 does not exceed 1 / 2 of the thickness of the grid bottom frame. In order to improve the strength of the staggered connecting block 4, the two ends of the adjacent staggered connecting blocks 4 can be staggered up and down, as shown in FIG. Figure 3 and 4 .

[0025] like Figure 5 and 6 As shown, in the new grid mesh belt arrangement structure, along the grid coating feeding direction ( Figure 3During the slicing process of entering the bottom of the rolling mechanism 8 in the direction indicated by the middle arrow) and the slicing process, the rolling cutter 801 in the rolling mechanism 8 is used to cut the two columns of series-connected grids 1; the rolling cutter 802 is used to cut the connection points between the staggered connecting blocks 4 and the bottom frame 3 of the grid, and the rolling cutter 802 first cuts the connection points where the higher end of the staggered connecting blocks 4 is connected to the bottom frame 3 of the lower grid, and then cuts the connection points where the lower end of the staggered connecting blocks 4 is connected to the bottom frame 3 of the upper grid. The setting of the staggered connecting blocks 4 can effectively avoid the card problem caused by the connecting blocks being stuck between the two rolling cutters when the grid 1 is cut.

[0026] Implementation 2:

[0027] This embodiment is a further improvement of embodiment 1. The main improvement is that in embodiment 1, the tabs 2 of the two series-connected grids 1 are suspended, and the grids 1 or tabs 2 are easily deformed during the process. Figure 7 The tabs 2 of the two series-connected grids 1 are connected and fixed by connecting strips 7. The setting of the connecting strips 7 is equivalent to adding a reinforcing rib between the tabs 2, which effectively prevents the grid 1 or the tabs 2 from deforming. The connecting strips 7 can be cut off using the rolling cutter 803 during subsequent cutting. Figure 8 .

[0028] Apart from this, this embodiment is identical to Embodiment 1 and will not be described in detail here.

[0029] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A new type of grid belt arrangement structure, characterized in that: It is formed by horizontally connecting two rows of multiple grids (1) connected in series, wherein the pole ears (2) of the two rows of grids (1) connected in series are arranged opposite to each other on the outside of the novel grid mesh belt arrangement structure; the grid bottom frames (3) of the two rows of grids (1) connected in series are arranged opposite to each other on the inside of the novel grid mesh belt arrangement structure, and the two oppositely arranged grid bottom frames (3) are connected by a "Z"-shaped staggered connecting block (4) with unequal heights at both ends; The upper end of one of the staggered connection blocks (4) is connected to the lower part of the upper grid bottom frame (3), and the lower end is connected to the upper part of the lower grid bottom frame (3); or, the upper end of one of the staggered connection blocks (4) is connected to the upper part of the upper grid bottom frame (3), and the lower end is connected to the lower part of the lower grid bottom frame (3); The thickness of the dislocated connecting block (4) does not exceed 1 / 2 of the thickness of the grid bottom frame (3).

2. The novel grid mesh belt arrangement structure according to claim 1 is characterized in that: The two ends of the adjacent staggered connecting blocks are arranged in an alternating manner up and down.

3. The novel grid belt arrangement structure according to claim 2 is characterized in that: The pole tabs (2) of the two rows of grids (1) connected in series are respectively connected and fixed via connecting bars (7).

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