CN203044839U - Continuous-casting and continuous-rolling roller for storage battery grid plate - Google Patents

Abstract

The utility model discloses a battery grid plate continuous casting and rolling roll, which comprises a pair of pressing rolls, grooves and/or convex edges are arranged on the surface of the rolls, or convex points and/or convex points are arranged on the surface of the rolls Dimples; grooves and/or ribs are evenly distributed on the surface of a roll or a pair of rolls, the grooves and/or ribs on the surface of the rolls are corrugated tooth structures; the grooves and/or ribs on the surface of the rolls are reticulated Structure; grooves and/or convex ribs and convex points and/or concave points are arranged alternately on the surface of the roll. Because the continuous casting and rolling roll of the storage battery grid is provided with grooves and/or convex edges and convex points and/or concave points on its surface, the grooves and/or convex points on the surface of the rolled lead plate and the surface of the roll are The ribs and convex points and/or concave points cooperate with each other to form a uniform feeding traction force, so that the rolled lead plate can be smoothly conveyed along the straight line. This not only improves the quality of the rolled lead plate, but also improves the rolling efficiency of the lead plate.

Description

A battery grid plate continuous casting and rolling roll

technical field

The utility model relates to a roll structure, in particular to a battery grid plate continuous casting and rolling roll.

Background technique

The main function of the grid in the lead-acid battery is to conduct and collect the current, and to make the current distribution even, and on the other hand, to support the active material. The grid is not only a conductive skeleton, but also an active material carrier with dual functions. Therefore, the grid must have certain mechanical, electrical, and metallurgical characteristics. That is to say, the grid is required to have good mechanical properties (including hardness, tensile strength, castability, weldability), good corrosion resistance and good electrical conductivity.

At present, the main methods of making lead-acid battery grids include stretching, continuous casting and rolling, gravity casting and forging strip expansion, casting expansion, stamping, punching and rolling, etc., and gravity casting technology is more commonly used. , but due to the mold, pressure and other reasons, the grid made by gravity casting technology has the disadvantages of rough surface, loose structure and poor corrosion resistance. Batteries made of this type of grid have short service life, poor charge and discharge performance, and there are problems such as fast grid corrosion and short cycle life of lead-acid batteries during use.

However, the grid manufactured by continuous casting machine using continuous casting roll pressing and rolling technology has greatly improved in terms of optimized grid design, performance and microstructure. It can design grids of any thickness and make full use of existing grids. Grid strip coating equipment, and can change the grid material composition and microstructure, and provide a prerequisite for improving the adhesion of active materials, its inherent fine columnar grain microstructure and composite layer structure enhance the grid corrosion resistance and lead Paste adhesion, which is conducive to improving the corrosion resistance of the grid and the adhesion of the lead paste. The flexibility is much better than all the current grid manufacturing processes. The thickness of the grid can be reduced to the minimum thickness required for current carrying, corrosion and processing. Reduce resistance loss and have good mechanical properties. Compared with the gravity casting method widely used at present, the continuous casting and rolling method has high production efficiency, good production environment, low product cost, high grid strength, fine grain structure and less prone to intergranular corrosion. Grids required for different types of batteries can be produced. Increase the power and energy density of the battery by reducing weight, and extend the battery life by improving the corrosion resistance of the grid.

At present, in the continuous casting machine for manufacturing lead plates for grids, after the lead liquid is added between the two rolls, the lead liquid passes through the cooling and rolling of the rolls to form lead plates. However, due to the smooth surface of the existing rolls, the lead plate and Slips are easily formed between the rolls, causing uneven friction and traction on both sides of the rolled lead plate, causing the rolled lead plate to shift to one side or bend. Therefore can not normally convey to next processing procedure, so it is necessary to improve existing lead plate roll structure.

Utility model content

The purpose of the utility model is to overcome the defects existing in the prior art, and provide a battery grid plate continuous casting and rolling roll.

In order to achieve the above purpose, the technical solution of the present utility model is to design a battery grid continuous casting and rolling roll, which is characterized in that the roll includes a pair of pressing rolls, grooves and/or convex ribs, or convex points and/or concave points on the surface of the roll.

Among them, the preferred technical solution is that the grooves and/or ribs are evenly distributed on the surface of one roll or a pair of rolls.

A further preferred technical solution is that the grooves and/or ribs on the surface of the roll are corrugated tooth structures.

A further preferred technical solution is that the corrugated teeth are straight teeth or helical teeth.

In a further preferred technical solution, the helical teeth include left helical and/or right helical.

In a further preferred technical solution, the grooves and/or ribs on the surface of the roll are of a textured structure.

In a preferred technical solution, the convex points and/or concave points are evenly distributed on the surface of a roller or a pair of rollers.

In a further preferred technical solution, grooves and/or convex ribs and convex points and/or concave points are arranged alternately on the surface of the roll.

A further preferred technical solution is that the radial dimension of the grooves and/or ribs and convex points and/or concave points is 0.3 mm to 0.8 mm, and the adjacent grooves and/or ribs and convex points and/or Or the pitch of pits ≥ 5mm.

The advantages and beneficial effects of the utility model are: because the continuous casting and rolling roll of the storage battery grid is provided with grooves and/or convex edges and convex points and/or concave points on its surface, the surface of the rolled lead plate Cooperate with the grooves and/or convex ribs and convex points and/or concave points on the surface of the roller to form a uniform feeding traction force, so that the rolled lead plate can be smoothly conveyed in a straight line. This not only improves the quality of the rolled lead plate, but also improves the rolling efficiency of the lead plate. The improved lead plate roll has a simple structure, is easy to process, and has a long service life. A lead plate that is pressed with grooves and/or ribs and bumps and/or depressions also facilitates the adhesion of lead paste on its surface.

Description of drawings

Fig. 1 is the cross-sectional structure schematic diagram of the utility model roll;

Fig. 2 is one figure of the main view structural representation of roll of the present utility model;

Fig. 3 is the second figure of the front view structural representation of the utility model roll;

Fig. 4 is the three schematic diagrams of the front view structure of the utility model roll;

Fig. 5 is the fourth schematic diagram of the front view structure of the roll of the utility model.

In the figure: 1, roll; 2, corrugated teeth; 3, textured structure; 4, bumps and/or pits.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figures 1 to 5, the utility model is a battery grid continuous casting and rolling roll. The roll 1 includes a pair of pressing rolls, and grooves and/or ribs are arranged on the surface of the roll 1, or The surface of 1 is provided with convex points and/or concave points 4.

The preferred technical solution in the utility model is that the grooves and/or ribs are evenly distributed on the surface of one roll 1 or a pair of rolls.

In a further preferred embodiment of the present invention, the grooves and/or ribs on the surface of the roll 1 are corrugated tooth 2 structures.

In a further preferred embodiment of the present invention, the corrugated teeth 2 are straight teeth or helical teeth.

In a further preferred embodiment of the present invention, the helical teeth include left helical and/or right helical.

In a further preferred embodiment of the present invention, the grooves and/or ribs on the surface of the roll 1 are of a textured structure 3 .

In a preferred embodiment of the present invention, the convex points and/or concave points 4 are evenly distributed on the surface of a roll or a pair of rolls.

In a further preferred embodiment of the present invention, grooves and/or convex ribs and convex points and/or concave points 4 are arranged alternately on the surface of the roll 1 .

In a further preferred embodiment of the present utility model, the radial dimension of the groove and/or rib and convex point and/or concave point 4 is 0.5mm, and the adjacent groove and/or rib and convex The spacing of dots and/or pits is ≥5mm.

The above is only the preferred embodiment of the utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and modifications can also be made. And retouching should also be regarded as the protection scope of the present utility model.

Claims (9)

1. A battery grid continuous casting and rolling roll, characterized in that the roll comprises a pair of pressing rolls, grooves and/or ribs are provided on the surface of the roll, or There are bumps and/or pits. 2. The battery grid continuous casting and rolling roll according to claim 1, wherein the grooves and/or ribs are evenly distributed on the surface of one roll or a pair of rolls. 3. The roll for continuous casting and rolling of battery grid plates according to claim 2, characterized in that the grooves and/or ribs on the surface of the roll are corrugated tooth structures. 4. The battery grid plate continuous casting and rolling roll according to claim 3, wherein the corrugated teeth are straight teeth or helical teeth. 5 . The battery grid plate continuous casting and rolling roll according to claim 4 , wherein the helical teeth include left helical and/or right helical. 6. The roll for continuous casting and rolling of battery grid plates according to claim 2, characterized in that the grooves and/or ribs on the surface of the roll are in a textured structure. 7. The battery grid continuous casting and rolling roll according to claim 1, characterized in that, the convex points and/or concave points are evenly distributed on the surface of one roll or a pair of rolls. 8. The battery grid plate continuous casting and rolling roll as claimed in claim 5, 6 or 7, characterized in that grooves and/or convex ribs and convex points and/or concaves are alternately arranged on the surface of the roll. point. 9. The battery grid continuous casting and rolling roll according to claim 8, characterized in that, the radial dimension of the grooves and/or ribs and convex points and/or concave points is 0.3mm~0.8mm , the distance between adjacent grooves and/or ribs and convex points and/or concave points is ≥5mm.

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