Device for preparing perforated lead plate of lead-acid battery

Abstract

The utility model belongs to the technical field of storage battery grid processing and manufacturing, and particularly relates to a device for preparing a perforated lead plate of a lead-acid battery, which comprises a punching machine and a feeding roller, the punching machine comprises a fixed frame, and an upper die mechanism, a lower die mechanism and a positioning component which are arranged in the fixed frame, the upper die mechanism and the lower die mechanism are symmetrically arranged on the upper side and the lower side of the positioning assembly, each of the upper die mechanism and the lower die mechanism comprises a die, a pushing piece, four positioning sliding rods and a spring, a plurality of stamping heads are arranged on a vertical die on the lower side face of the die of the upper die mechanism, butt joints are arranged on a vertical die on the upper side face of the die of the lower die mechanism, and the stamping heads correspond to the butt joints. The device ensures that the stamping position is accurate, the lead plate is prevented from shaking or tilting, the problems of stamping deformation, material shortage and the like are reduced, displacement or deformation of a material belt is prevented, breakage or incomplete stamping caused by uneven local stress is avoided, and the stamping quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery grid processing and manufacturing technology, specifically, it relates to a device for preparing a perforated lead plate for lead-acid batteries. Background Technology

[0002] In the field of electrochemical energy storage, lead-acid batteries play a crucial role. Their performance largely depends on the quality of the grid. Typically, grids are formed by punching lead strips to improve the adhesion and amount of lead paste. However, the existing technology of punching holes in the grid has several drawbacks: the lead material of the lead strip is soft, and it is easy to generate burrs when it rubs against the forming mold during punching. There is a deviation in the amount of lead paste coating on the burr side and the non-burr side of the grid, resulting in uneven electrode weight and capacity. In the material strip alignment process, traditional manual or simple mechanical alignment has poor accuracy. The mechanical positioning method that relies on the matching of holes and posts is prone to deviation when thermally expanded or the material strip deforms. Conventional pressing equipment cannot evenly and accurately distribute pressure, which seriously affects the stability of the grid structure. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a new technical solution:

[0004] An apparatus for preparing perforated lead plates for lead-acid batteries includes a stamping machine and a feeding roller. The stamping machine includes a fixed frame, an upper die mechanism, a lower die mechanism, and a positioning assembly disposed within the fixed frame. The positioning assembly is disposed in the middle of the fixed frame and includes a left positioning member and a right positioning member. The left and right positioning members are horizontally corresponding and are fixedly connected to the left and right inner sides of the fixed frame, respectively. The opposite surfaces of the left and right positioning members are provided with grooves that match the two ends of the cross-section of the lead plate. The two side edges of the lead plate pass through the grooves and are fixed in the vertical direction by the left and right positioning members.

[0005] The upper mold mechanism and the lower mold mechanism are symmetrically arranged on the upper and lower sides of the positioning component. Both the upper mold mechanism and the lower mold mechanism include a mold, a pusher, four positioning slide rods and springs. Each of the four corners of the mold has a vertical through hole. The positioning slide rods pass through the through holes, and the two ends of the positioning slide rods are fixedly connected to the inner top surface of the fixed frame and the upper side surface of the positioning component, respectively. A spring is sleeved on the positioning slide rod located between the mold and the positioning component. The fixed end of the pusher is fixedly connected to the inner top surface of the fixed frame, and the moving end of the pusher is fixedly connected to the upper side surface of the mold.

[0006] The upper die mechanism has several punch heads on its lower vertical die side, and the lower die mechanism has a butt joint on its upper vertical die side. The punch heads and butt joints correspond to each other, and they perform the punching operation on the lead plate. When the punch heads and butt joints separate, the lead plate fragments obtained from punching fall to the underside of the positioning assembly. The lead plate fragments are periodically cleaned and collected to prevent them from obstructing the movement of the die. The lead plate fragments can be repeatedly melted down to make lead plates again.

[0007] Furthermore, the front side of the stamping press is equipped with a feeding roller, which includes a drive wheel, a transmission wheel, a motor and a bracket. The drive wheel and the transmission wheel are arranged vertically and vertically, and the rollers of the drive wheel and the transmission wheel are rotatably connected to the brackets on both sides. One side of the drive wheel's rotating shaft passes through the bracket and is fixedly connected to the output shaft of the motor. The motor's housing is fixedly connected to the bracket.

[0008] Furthermore, the surfaces of the drive wheel and the transmission wheel are roughened with a frosted finish. The lead plate is sandwiched between the drive wheel and the transmission wheel. The motor drives the drive wheel to rotate, which in turn moves the lead plate toward the stamping machine. The length of the mold and the circumference of the drive wheel and the driven wheel are measured and input into the calculator. The calculator calculates that after one stamping, the length the lead plate moves is slightly greater than the length of the mold. This ensures that the punching holes from the first stamping are not damaged during the second stamping, and that the lead plate grid is produced with high efficiency.

[0009] Furthermore, the stamping machine is equipped with a PLC controller. The motor and pusher are electrically connected to the PLC controller to control the motor and the stamping machine to work together. When the mold separates, the motor controls the drive wheel to move the lead plate towards the stamping machine. After moving to a certain length, it stops. Then the molds move closer together to stamp a hole. The molds separate, and this operation is repeated.

[0010] Furthermore, the actuating component can be a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod.

[0011] This invention also includes other devices or components that enable the preparation apparatus for a perforated lead plate for a lead-acid battery to function properly; all of these are conventional techniques in the art. Furthermore, the punching head and mating joint not specified in this invention also employ conventional techniques in the art.

[0012] The working principle of this utility model is that the device controls the motor and the stamping machine to work together through the PLC controller. When the mold is separated, the motor controls the drive wheel to move the lead plate towards the stamping machine. It is calculated in advance that after one stamping, the length of the lead plate should be slightly greater than the length of the mold, so that the punching hole of the first stamping will not be damaged during the second stamping. Then the molds move closer to each other to punch holes, the molds separate, and this operation is repeated to achieve high-efficiency production of lead plate grids.

[0013] The beneficial effects of this invention are as follows: This device can fix strips of different sizes and thicknesses, effectively preventing lateral movement or deviation of the strip during stamping, ensuring accurate stamping position, greatly improving product dimensional accuracy and consistency, and significantly reducing scrap rate; the stamping head and the butt joint press the strip through the punch, increasing the stability of the strip during stamping, preventing it from shaking or warping, reducing stamping deformation, material shortage, and other problems, and promoting better bonding of multi-layer strips; during stamping, the butt joint always supports the strip, preventing strip displacement or deformation, improving stamping position accuracy and product precision, and allowing the strip to better withstand the pressure of the stamping head, avoiding cracks or incomplete stamping caused by uneven local stress, improving stamping quality, and ensuring the integrity and firmness of the grid structure; at the same time, the butt joint shares part of the pressure of the stamping head on the strip, reducing friction between the stamping head and the strip, reducing stamping head wear, extending mold life, and uniform support force to prevent excessive compression damage to the strip, improving strip utilization and reducing production costs. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the mold structure of the lower mold mechanism in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the stamping machine and the feeding roller in this utility model.

[0018] Figure 4 This is a schematic diagram of the feeding roller in this utility model. Detailed Implementation

[0019] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0020] Example

[0021] like Figures 1-4As shown, the present invention provides a preparation device for a perforated lead plate for a lead-acid battery, including a stamping machine and a feeding roller. The stamping machine includes a fixed frame 1, an upper die mechanism, a lower die mechanism and a positioning component disposed within the fixed frame 1. The positioning component is disposed in the middle of the fixed frame 1 and includes a left positioning member 2 and a right positioning member 3. The left positioning member 2 and the right positioning member 3 are horizontally corresponding and are fixedly connected to the left and right inner sides of the fixed frame 1 respectively. The opposite surfaces of the left positioning member 2 and the right positioning member 3 are provided with grooves 4 that match the two ends of the cross-section of the lead plate. The two side edges of the lead plate pass through the grooves 4 and are fixed in the vertical direction by the left positioning member 2 and the right positioning member 3.

[0022] The upper mold mechanism and the lower mold mechanism are symmetrically arranged on the upper and lower sides of the positioning component. Both the upper mold mechanism and the lower mold mechanism include a mold 5, a pusher 6, four positioning slide rods 7 and a spring 8. Each of the four corners of the mold 5 is provided with a vertical through hole 9. The positioning slide rod 7 passes through the through hole 9, and the two ends of the positioning slide rod 7 are fixedly connected to the inner top surface of the fixed frame 1 and the upper side surface of the positioning component, respectively. A spring 8 is sleeved on the positioning slide rod 7 located between the mold 5 and the positioning component. The fixed end of the pusher 6 is fixedly connected to the inner top surface of the fixed frame 1, and the moving end of the pusher 6 is fixedly connected to the upper side surface of the mold 5.

[0023] The upper mold mechanism's mold 5 has several punch heads 10 on its lower vertical side, and the lower mold mechanism's mold 5 has a mating joint 11 on its upper vertical side. The punch heads 10 and mating joints 11 correspond to each other, and the punch heads 10 and mating joints 11 perform the punching operation on the lead plate. When the punch heads 10 and mating joints 11 separate, the lead plate fragments obtained from punching fall to the lower side of the positioning assembly. The lead plate fragments are periodically cleaned and collected to prevent them from obstructing the movement of the mold 5. The lead plate fragments can be repeatedly melted down to make lead plates again.

[0024] As a further measure of this utility model, a feeding roller is provided on the front side of the stamping machine. The feeding roller includes a drive wheel 12, a transmission wheel 13, a motor 14, and a bracket 15. The drive wheel 12 and the transmission wheel 13 are arranged vertically and vertically, and the rollers of the drive wheel 12 and the transmission wheel 13 are rotatably connected to the brackets 15 on both sides. One side of the drive wheel 12's rotating shaft passes through the bracket 15 and is fixedly connected to the output shaft of the motor 14. The housing of the motor 14 is fixedly connected to the bracket 15. The wheel surfaces of the drive wheel 12 and the transmission wheel 13 are frosted rough surfaces. A lead plate is sandwiched between the drive wheel 12 and the transmission wheel 13. The motor 14 drives the drive wheel 12 to rotate, causing the lead plate to move towards the stamping machine, thus adjusting the length of the mold 5 and the drive wheel 12. The data of the circumference measurement of the driven wheel 13 is input into the calculator, and the calculation is performed to determine that the length of the lead plate that moves after one stamping is slightly greater than the length of the die 5, so that the punching hole of the first stamping is not damaged during the second stamping, and the lead plate grid is produced with high efficiency. The stamping machine is equipped with a PLC controller (not shown in the figure). The motor 14 and the pusher 6 are both electrically connected to the PLC controller to control the motor 14 and the stamping machine to work together. When the die 5 separates, the motor 14 controls the drive wheel 12 to move the lead plate toward the stamping machine. After moving to a certain length, it stops. Then the dies 5 move closer to each other to punch holes. The dies 5 separate, and this operation is repeated. The pusher 6 adopts a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod.

[0025] The working principle of this utility model is that the device controls the motor 14 and the stamping machine to work together through the PLC controller. When the mold 5 is separated, the motor 14 controls the drive wheel 12 to move the lead plate towards the stamping machine. It is calculated in advance that after one stamping, the length of the lead plate should be slightly greater than the length of the mold 5, so that the punching hole of the first stamping will not be damaged during the second stamping. Then the molds 5 move closer to each other to punch holes. The molds 5 are separated, and this operation is repeated to achieve high-efficiency production of lead plate grids.

[0026] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An apparatus for preparing perforated lead plates for lead-acid batteries, comprising a stamping machine and a feeding roller, characterized in that: The stamping machine includes a fixed frame, an upper die mechanism, a lower die mechanism, and a positioning component disposed within the fixed frame. The positioning component is disposed in the middle of the fixed frame and includes a left positioning component and a right positioning component. The left and right positioning components are horizontally corresponding and are fixedly connected to the left and right inner sides of the fixed frame, respectively. The opposite surfaces of the left and right positioning components are provided with grooves that match the two ends of the cross-section of the lead plate. The two side edges of the lead plate pass through the grooves and the left and right positioning components fix the position of the lead plate in the vertical direction. The upper mold mechanism and the lower mold mechanism are symmetrically arranged on the upper and lower sides of the positioning component. Each of the upper mold mechanism and the lower mold mechanism includes a mold, a pusher, four positioning slide rods and a spring. Each of the four corners of the mold is provided with a vertical through hole. The positioning slide rods pass through the through holes, and the two ends of the positioning slide rods are fixedly connected to the inner top surface of the fixed frame and the upper side surface of the positioning component, respectively. A spring is sleeved on the positioning slide rod located between the mold and the positioning component. The fixed end of the pusher is fixedly connected to the inner top surface of the fixed frame, and the moving end of the pusher is fixedly connected to the upper side surface of the mold. The upper mold mechanism has a plurality of stamping heads on the lower side of the mold perpendicular to the mold, and the lower mold mechanism has a mating head on the upper side of the mold perpendicular to the mold. The stamping heads and the mating head correspond to each other.

2. The apparatus for preparing a perforated lead plate for a lead-acid battery according to claim 1, characterized in that: The front side of the stamping machine is provided with a feeding roller, which includes a drive wheel, a transmission wheel, a motor and a bracket. The drive wheel and the transmission wheel are arranged vertically and vertically, and the rollers of the drive wheel and the transmission wheel are rotatably connected to the brackets on both sides. One side of the drive wheel's rotating shaft passes through the bracket and is fixedly connected to the output shaft of the motor. The motor's housing is fixedly connected to the bracket.

3. The apparatus for preparing a perforated lead plate for a lead-acid battery according to claim 2, characterized in that: The surfaces of the drive wheel and the transmission wheel are rough and frosted. The lead plate is sandwiched between the drive wheel and the transmission wheel. The motor drives the drive wheel to rotate, which in turn moves the lead plate toward the stamping machine.

4. The apparatus for preparing a perforated lead plate for a lead-acid battery according to claim 3, characterized in that: The stamping machine is equipped with a PLC controller, and the motor and pusher are electrically connected to the PLC controller.

5. The apparatus for preparing a perforated lead plate for a lead-acid battery according to claim 4, characterized in that: The pushing component is a hydraulic telescopic rod, a pneumatic telescopic rod, or an electric telescopic rod.

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