Plate casting device

Abstract

The utility model provides a plate casting device, which belongs to the technical field of storage battery grids, a thin casting grid comprises a grid body, the grid body comprises a grid frame, a plurality of grid longitudinal bars and a plurality of grid transverse bars, the grid longitudinal bars and the grid transverse bars are arranged in the grid frame in a staggered manner, and a plate lug is arranged at the top of the grid frame; a widened area is arranged in the middle of the upper end of the grid frame, the plate lug is located in the middle of the upper end of the widened area, and the widths of the grid longitudinal bars connected with the widened area are gradually reduced from top to bottom. Through the design of the widened areas and the corresponding grid longitudinal bars, the current conducting area is increased, the high-temperature acid liquid corrosion resisting time is prolonged, the high-temperature service life of the storage battery is prolonged, the defects of shrinkage, air holes and the like at the joint of the plate lug and the grid upper frame can be reduced, and the percent of pass of cast grid products is increased. According to the thin type casting grid provided by the utility model, the traditional structure of the casting grid is broken through by increasing the width of the position of the plate lug, and the high-temperature corrosion resistance and the service life are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery grids, and more specifically relates to a plate casting device. Background Art

[0002] In the high temperature and high humidity environment of South my country and Southeast Asia, high requirements are placed on the high temperature corrosion resistance of lead-acid batteries. The high temperature and long life series batteries use thick cast plates, which have excellent high temperature life and are therefore sold well in this region. However, the thick plates have high lead consumption and the market cost competition pressure is increasing.

[0003] In order to survive and develop in the market competition and solve the cost pressure, a thin cast grid structure is provided to achieve a breakthrough in the traditional structure of cast grids, ensuring high temperature corrosion resistance and service life. Utility Model Content

[0004] The utility model aims to provide a thin cast grid, achieving a breakthrough in the traditional structure of the cast grid and ensuring high temperature corrosion resistance and service life.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a thin casting grid, including a grid body, the grid body including a grid frame and a plurality of grid longitudinal ribs and a plurality of grid transverse ribs staggered in the grid frame, and a plate ear is provided on the top of the grid frame;

[0006] The middle part of the upper end of the grid frame is provided with a widened area, the plate ear is located in the middle part of the upper end of the widened area, and the width of the plurality of grid longitudinal ribs connecting the widened area gradually decreases from top to bottom.

[0007] In a possible implementation, the plurality of longitudinal ribs of the grid are radially arranged from top to bottom and tilted outward with the plate ear as the center.

[0008] In a possible implementation, the width of the widened area decreases toward both sides with the plate ear as the center.

[0009] In a possible implementation, the bottom of the grid body has a plurality of bottom grids arranged transversely, and auxiliary ribs are longitudinally arranged in the bottom grids.

[0010] In a possible implementation, the grid frame, the grid longitudinal ribs, the grid transverse ribs and the plate ears are all integrally formed.

[0011] In a possible implementation, the grid body has a thickness of 1.2 mm to 1.4 mm.

[0012] The beneficial effect of a thin cast grid provided by the utility model is that: compared with the prior art, the middle part of the upper end of the grid frame is provided with a widened area, the plate ear is located in the middle part of the upper end of the widened area, and the width of the multiple grid longitudinal ribs connecting the widened area gradually decreases from top to bottom. The width of the widened area and the width of the multiple grid longitudinal ribs where the widened area is located exceed the traditional structure of the traditional cast grid, thereby improving the high temperature corrosion resistance of the grid. At the same time, the design of the widened area and the corresponding grid longitudinal ribs increases the current conduction area and the time of high temperature acid corrosion resistance, improves the high temperature life of the battery, and can also reduce the shrinkage, air holes and other defects at the connection between the plate ear and the upper frame of the grid, thereby improving the qualified rate of the cast grid product. The thin cast grid provided by the utility model achieves a breakthrough in the traditional structure of the cast grid by increasing the width of the plate ear position, thereby ensuring high temperature corrosion resistance and service life.

[0013] The utility model also provides a plate casting device, including a plate casting mold, wherein the plate casting mold includes a fixed mold and a movable mold arranged opposite to each other, a guide mechanism is arranged between the movable mold and the fixed mold, and the movable mold and the fixed mold are mutually buckled to form a molding cavity for molding the thin casting grid;

[0014] A lead liquid storage tank is transversely arranged on the top of the casting plate mold, and the lead liquid storage tank is connected to the forming mold cavity through a plurality of main lead inlets arranged side by side.

[0015] In a possible implementation, auxiliary lead inlets are respectively provided on both sides of the plurality of main lead inlets.

[0016] In a possible implementation, two cooling water channels are provided on the top of the casting plate mold, and the two cooling water channels are respectively located at the front side and the rear side of the lead liquid storage tank.

[0017] In a possible implementation, a plurality of exhaust channels are respectively provided on both sides of the molding cavity, and the plurality of exhaust channels on the same side are sequentially spaced from bottom to top, and each exhaust channel is inclined upward from inside to outside.

[0018] The beneficial effect of a plate casting device provided by the utility model is that: compared with the prior art, the movable mold and the fixed mold are buckled together through a guide mechanism, so that the molding cavity is formed between the two. The molten lead is poured into the molten lead storage tank, and then flows into the molding cavity through the main lead inlet. After cooling, the molten lead is molded into the above-mentioned thin casting grid in the molding cavity. The plate casting device provided by the utility model provides a plate casting device for preparing thin casting grids by pouring molten lead to mold the above-mentioned thin casting grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a thin cast grid provided by the utility model;

[0021] Figure 2 A structural schematic diagram of a fixed mold of a plate casting device provided by the utility model;

[0022] Figure 3 for Figure 2 Side view of

[0023] Figure 4 A schematic diagram of the structure of a movable mold of a plate casting device provided by the utility model;

[0024] Figure 5 for Figure 4 Side view of

[0025] Figure 6 It is a cross-sectional view of the exhaust channel on the fixed mold or the movable mold.

[0026] Description of reference numerals:

[0027] 1. Grid frame; 2. Grid longitudinal ribs; 3. Grid transverse ribs; 4. Plate ears; 5. Widened area; 6. Auxiliary ribs; 7. Fixed mold; 71. Guide column; 8. Moving mold; 81. Guide hole; 9. Lead liquid storage tank; 10. Main lead inlet; 11. Auxiliary lead inlet; 12. Cooling water channel; 13. Exhaust channel. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] See also Figure 1 Now, a thin cast grid provided by the utility model is described. A thin cast grid comprises a grid body, the grid body comprises a grid frame 1 and a plurality of grid longitudinal ribs 2 and a plurality of grid transverse ribs 3 staggered in the grid frame 1, a plate ear 4 is arranged on the top of the grid frame 1; a widening area 5 is provided in the middle of the upper end of the grid frame 1, the plate ear 4 is located in the middle of the upper end of the widening area 5, and the width of the plurality of grid longitudinal ribs 2 connecting the widening area 5 gradually decreases from top to bottom.

[0030] The utility model provides a thin cast grid. Compared with the prior art, the middle part of the upper end of the grid frame 1 is provided with a widened area 5, the plate ear 4 is located in the middle part of the upper end of the widened area 5, and the width of the multiple grid longitudinal ribs 2 connecting the widened area 5 gradually decreases from top to bottom. The width of the widened area 5 and the width of the multiple grid longitudinal ribs 2 where the widened area 5 is located exceed the traditional structure of the traditional cast grid, thereby improving the high temperature corrosion resistance of the grid. At the same time, the design of the widened area 5 and the corresponding grid longitudinal ribs 2 increases the current conduction area and the time of high temperature acid corrosion resistance, improves the high temperature life of the battery, and can also reduce the shrinkage, pores and other defects at the connection between the plate ear 4 and the upper frame of the grid, thereby improving the qualified rate of the cast grid product. The utility model provides a thin cast grid. By increasing the width of the plate ear 4 position, a breakthrough is achieved in the traditional structure of the cast grid, ensuring high temperature corrosion resistance and service life.

[0031] The thickness of the grid body is a thin grid structure of 1.2 mm to 1.4 mm. The width of the grid frame 1 is 2.0 mm to 3.5 mm.

[0032] A plurality of grid longitudinal ribs 2 are radially arranged from top to bottom and tilted outward with the plate ear 4 as the center. The width of the grid longitudinal ribs 2 gradually changes from 4 mm to 5 mm to 1.2 mm to 2.0 mm.

[0033] The width of the widened area 5 decreases toward both sides with the plate ear 4 as the center, and the maximum width in the middle is 8mm-12mm and transitions to a width of 2mm-4mm on both sides.

[0034] The bottom of the grid body is provided with a plurality of bottom grids arranged transversely, and auxiliary ribs 6 are longitudinally arranged in the bottom grids. The auxiliary ribs 6 increase the overall strength of the grid body on the one hand, and maintain weight balance with the upper part of the grid body on the other hand.

[0035] Specifically, the grid frame 1, the grid longitudinal ribs 2, the grid transverse ribs 3 and the plate ears 4 are all integrally cast.

[0036] The utility model also provides a casting plate device, including a casting plate mold, the casting plate mold includes a fixed mold 7 and a movable mold 8 arranged relatively, a guiding mechanism is arranged between the movable mold 8 and the fixed mold 7, the movable mold 8 and the fixed mold 7 are interlocked to form a molding cavity for molding the above-mentioned thin casting grid; a lead liquid storage tank 9 is horizontally arranged on the top of the casting plate mold, and the lead liquid storage tank 9 is connected to the molding cavity through a plurality of main lead inlets 10 arranged side by side.

[0037] See also Figures 2 to 5Compared with the prior art, the utility model provides a plate casting device. The movable mold 8 and the fixed mold 7 are buckled together through a guide mechanism to form the molding cavity between the two. The molten lead is poured into the lead liquid storage tank 9, and then flows into the molding cavity through the main lead inlet 10. After cooling, the molten lead is molded into the above-mentioned thin casting grid in the molding cavity. The utility model provides a plate casting device, which molds the above-mentioned thin casting grid by pouring molten lead, and provides a plate casting device for preparing thin casting grids.

[0038] The guide mechanism includes a guide post 71 vertically arranged on the fixed mold 7 and a guide hole 81 vertically opened on the movable mold 8, which are adapted to each other and can play a guiding and positioning role when the fixed mold 7 and the movable mold 8 are engaged with each other. The fixed mold 7 and the movable mold 8 are arranged opposite each other and are symmetrical to each other.

[0039] See also Figure 2 and Figure 4 , a plurality of main lead inlets 10 are provided between the lead liquid storage tank 9 and the forming mold cavity. In order to make it easier to fill the grid, an auxiliary lead inlet 11 is added on the left and right sides of the plurality of main lead inlets 10, and the position is close to the corner of the frame of the plate ear 4. The lead liquid storage tank 9 is designed as a multi-angle transition structure, and the buffered lead liquid is convenient for smoother injection into the main lead inlet 10. The width of the lead liquid storage tank 9 is greater than the sum of the widths of the main lead inlet 10 and the auxiliary lead inlet 11, and the two sides are 15mm to 20mm longer, so that the lead liquid can enter the forming mold cavity more smoothly through the main lead inlet 10 and the auxiliary lead inlet 11.

[0040] In addition, two cooling water channels 12 are provided on the top of the casting plate mold, and the two cooling water channels 12 are respectively located at the front and rear sides of the lead liquid storage tank 9. The cooling water channel 12 runs through the fixed mold 7 and the movable mold 8 horizontally, and interfaces are provided at both ends to facilitate external piping.

[0041] Multiple exhaust channels 13 are provided on both sides of the molding cavity. The multiple exhaust channels 13 on the same side are arranged in sequence from bottom to top, and each exhaust channel 13 is inclined upward from inside to outside, so as to facilitate the discharge of gas in the molding cavity and avoid the problem of air holes or insufficient pouring due to air holding.

[0042] In this embodiment, the molding cavity can mold two plate grids at one time, and the plate ears 4 of the two plate grids are far away from each other. When the exhaust channels 13 are set on the same side, one of the exhaust channels 13 can be set horizontally and connected to the upper part of the plate ear 4 to facilitate the gas discharge from the mold cavity in the molding plate ear 4 area.

[0043] See also Figure 6The exhaust channel 13 is designed to be stepped in the depth direction, and the depth of the connection with the grid frame 1 and the plate ear 4 is 0.02mm~0.05mm, ensuring the smooth discharge of gas without burrs; the depth of the exhaust channel 13 away from the grid frame 1 is 0.2~0.5mm, leaving enough space for smooth exhaust.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plate casting device, characterized in that: The casting plate mold comprises a fixed mold (7) and a movable mold (8) arranged opposite to each other, a guide mechanism is arranged between the movable mold (8) and the fixed mold (7), and the movable mold (8) and the fixed mold (7) are mutually engaged to form a molding cavity for molding a thin casting grid; A lead liquid storage tank (9) is disposed transversely on the top of the casting plate mold, and the lead liquid storage tank (9) is connected to the molding cavity through a plurality of main lead inlets (10) disposed side by side; Auxiliary lead inlets (11) are respectively provided on both sides of the plurality of main lead inlets (10); Two cooling water channels (12) are arranged on the top of the casting plate mold, and the two cooling water channels (12) are respectively located at the front side and the rear side of the lead liquid storage tank (9); A plurality of exhaust channels (13) are respectively arranged on both sides of the molding cavity, and the plurality of exhaust channels (13) on the same side are sequentially arranged at intervals from bottom to top, and each exhaust channel (13) is inclined upward from inside to outside; The thin cast grid comprises a grid body, wherein the grid body comprises a grid frame (1) and a plurality of grid longitudinal ribs (2) and a plurality of grid transverse ribs (3) staggeredly arranged in the grid frame (1), and a plate ear (4) is provided at the top of the grid frame (1); The middle of the upper end of the grid frame (1) is provided with a widened area (5), the plate ear (4) is located in the middle of the upper end of the widened area (5), and the width of the plurality of grid longitudinal ribs (2) connecting the widened area (5) gradually decreases from top to bottom.

2. A plate casting device as claimed in claim 1, characterized in that: The plurality of grid longitudinal ribs (2) are radially arranged from top to bottom and tilted outward with the plate ear (4) as the center.

3. A plate casting device as claimed in claim 1, characterized in that: The width of the widened area (5) decreases gradually toward both sides with the plate ear (4) as the center.

4. A plate casting device as claimed in claim 1, characterized in that: The bottom of the grid body is provided with a plurality of bottom grids arranged transversely, and auxiliary ribs (6) are longitudinally arranged in the bottom grids.

5. A plate casting device as claimed in claim 1, characterized in that: The grid frame (1), the grid longitudinal ribs (2), the grid transverse ribs (3) and the plate ears (4) are all integrally formed.

6. A plate casting device according to any one of claims 1 to 5, characterized in that: The thickness of the grid body is 1.2 mm to 1.4 mm.

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