Polar plate weighing device

Abstract

The utility model relates to a polar plate weighing device which is arranged below a chain conveyor and comprises a mounting plate and a weighing mechanism vertically arranged on the mounting plate, and the weighing mechanism comprises an air cylinder, a rubber seat, a weighing sensor and a jacking seat which are sequentially arranged from bottom to top; the mounting plate is detachably arranged below the chain conveyor, so that the whole weighing device and the chain conveyor are convenient to disassemble and assemble, the air cylinder is arranged on the mounting plate, a piston rod of the air cylinder is vertically and upwards connected with the rubber seat, so that the rubber seat is conveniently driven to lift up and down, the weighing sensor is arranged above the rubber seat, and the jacking seat is arranged above the weighing sensor. The air cylinder drives the jacking base to do up-down reciprocating motion, and the jacking base upwards crosses a conveying chain of the chain conveyor and evenly jacks the polar plate. According to the utility model, sampling inspection and weighing can be conveniently and rapidly carried out on the pole plate without frequent manual taking and weighing.

Description

Technical Field

[0001] This utility model relates to the field of storage battery manufacturing technology, and in particular to a plate weighing device. Background Technology

[0002] The electrode plate is one of the core components of a storage battery. The manufacturing process of the electrode plate includes strip making and plate coating. The continuous grid strip is formed by punching with a stamping machine. After the grid strip passes through the plate coating machine, it is coated with lead paste to form the electrode plate strip. The electrode plate strip then passes through a rolling cutter to cut the electrode plate strip into individual electrode plates. The electrode plate is then transported to the next process by a chain conveyor.

[0003] The chain conveyor in our unit operates as follows: The chain conveyor has six parallel conveyor chains, with three chains forming a group. Several electrode plates in one row move between groups of conveyor chains. Therefore, the chain conveyor can continuously convey two rows of electrode plates. Figure 1 As shown.

[0004] During the movement of the electrode plates on the chain conveyor, manual sampling and weighing are performed. This requires an electronic scale installed on one side of the chain conveyor. A person randomly picks an electrode plate from the conveyor chain, places it on the scale, and weighs it to ensure that the weight of the electrode plate is within the required range, avoiding excessive or insufficient lead paste and ensuring the electrode plate's performance. This manual weighing operation requires repeated manual handling, is time-consuming and labor-intensive, and affects the weighing progress. Summary of the Invention

[0005] To solve the problem of time-consuming and labor-intensive manual weighing operations, this utility model provides an electrode plate weighing device. By arranging a liftable weighing mechanism between the conveyor chains, the lifting and lowering operation of the weighing mechanism is manually controlled, and the electrode plate is automatically weighed using sensors.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The electrode plate weighing device is arranged below the chain conveyor and includes a mounting plate and a weighing mechanism vertically arranged on the mounting plate. The weighing mechanism includes a cylinder, a rubber seat, a weighing sensor and a lifting seat arranged from bottom to top.

[0008] The mounting plate is detachably installed below the chain conveyor, facilitating the assembly and disassembly of the entire weighing device from the chain conveyor. The mounting plate is equipped with a cylinder, and the piston rod of the cylinder is vertically connected to the rubber seat, facilitating the up-and-down movement of the rubber seat. The weighing sensor is installed above the rubber seat, and the lifting seat is installed above the weighing sensor. The cylinder drives the lifting seat to reciprocate up and down, and the lifting seat moves upward past the conveyor chain of the chain conveyor, evenly lifting the electrode plate.

[0009] Furthermore, the mounting plate is arranged horizontally, and after being bent at both ends, it is bolted to both sides of the chain conveyor. Ribs are also provided at the bent ends of the mounting plate, which increases the structural strength of the mounting plate and improves its load-bearing capacity. The weighing mechanism is arranged perpendicular to the mounting plate.

[0010] Furthermore, the cylinder is vertically arranged below the mounting plate, and the cylinder and the mounting plate are bolted together. A rubber pad is also provided between the mating surfaces of the cylinder and the mounting plate to reduce the transmission of vibration from the chain conveyor to the cylinder. The piston rod of the cylinder passes upward through the mounting plate and connects to the rubber seat. The cylinder is also connected to a solenoid valve to facilitate the control of the cylinder's operation.

[0011] Furthermore, the rubber seat is threadedly connected to the piston rod of the cylinder. The upper end of the piston rod is a variable-diameter round rod, and a support ring is also fitted on the piston rod. The lower end face of the rubber seat is tightly pressed against the support ring, which improves the stability of the rubber seat installation.

[0012] Furthermore, the weighing sensor is a strain gauge weighing sensor or a piezoelectric-strain gauge composite sensor.

[0013] Furthermore, the lifting seat is a plastic frame structure, which is lightweight. The lifting seat includes a base plate and a lifting plate. The center of the base plate is connected and fixed to the probe of the weighing sensor. The base plate is located below the conveyor chain of the chain conveyor and is spaced apart from the conveyor chain. The lifting plates are symmetrically arranged on both sides of the base plate. The lifting plates do not affect the operation of the conveyor chain. The lifting plates are U-shaped plates, and the lifting plates are bent into an inverted U-shape. The lifting plates evenly lift the plates upward.

[0014] The beneficial effects of this utility model through the above technical solution are:

[0015] This utility model features a rationally designed structure. A weighing mechanism is positioned below the chain conveyor, utilizing its vertical movement to perform random weighing of the electrode plates without interfering with their normal movement on the conveyor. The weighing mechanism uses a cylinder to drive the load cell up and down. For random weighing, the cylinder is manually controlled. A rubber seat between the cylinder and the load cell reduces the impact of the cylinder's movement on the load cell. The load cell has a lifting seat positioned between the conveyor chains. This lifting seat does not interfere with the chain's operation but evenly lifts the electrode plates through the chain, allowing the load cell to automatically detect their weight. Thus, the operator only needs to time the operation correctly, raising the cylinder to lift one electrode plate at a time for automatic weighing by the load cell, making the weighing operation convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the conveyor plates of a chain conveyor.

[0017] Figure 2 This is a schematic diagram of the installation of the weighing mechanism of the electrode plate weighing device of this utility model.

[0018] Figure 3 This is a front view of the weighing mechanism of the electrode plate weighing device of this utility model.

[0019] Figure 4 This is a schematic diagram showing the disassembled weighing mechanism of the electrode plate weighing device of this utility model.

[0020] The attached diagram is labeled as follows: 1 Chain conveyor, 2 Electronic scale, 3 Conveyor chain, 4 Electrode plate, 5 Mounting plate, 6 Weighing mechanism, 7 Cylinder, 8 Rubber seat, 9 Weighing sensor, 10 Lifting seat, 101 Base plate, 102 Lifting plate, 11 Rubber pad, 12 Support ring, 13 Guide rod, 14 Rib plate. Detailed Implementation

[0021] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0022] like Figures 2-4 As shown, the electrode plate weighing device is arranged below the chain conveyor 1, including a mounting plate 5 and a weighing mechanism 6 vertically mounted on the mounting plate 5. The mounting plate 5 is used to connect with the chain conveyor 1. Since the chain conveyor 1 can simultaneously transport two rows of electrode plates 4, each row of electrode plates 4 is supported by three conveyor chains 3, thus the chain conveyor 1 is equipped with six conveyor chains 3. The six conveyor chains 3 are arranged in groups of three, and each group of conveyor chains 3 can transport one row of electrode plates 4. The structure and configuration of the chain conveyor 1 are existing equipment in our unit and will not be described in detail here.

[0023] Mounting plate 5 is detachably mounted below chain conveyor 1. Specifically, mounting plate 5 is horizontally arranged, with a "U"-shaped cross-section. Both ends of mounting plate 5 are horizontally bent and bolted to the frame on both sides of chain conveyor 1, thus suspending mounting plate 5 below chain conveyor 1. Triangular ribs 14 are also provided at the bends at both ends of mounting plate 5, increasing the structural strength of mounting plate 5.

[0024] There are two sets of weighing mechanisms 6 arranged on the mounting plate 5, which are used for random sampling and weighing of the two rows of electrode plates 4. The weighing mechanisms 6 are arranged perpendicular to the mounting plate 5. Each set of weighing mechanisms 6 includes a cylinder 7, a rubber seat 8, a weighing sensor 9 and a lifting seat 10 arranged from bottom to top.

[0025] A cylinder 7 is mounted on the mounting plate 5. The cylinder 7 can be a short-stroke piston cylinder. During installation, the cylinder 7 is vertically positioned below the mounting plate 5 and bolted to the mounting plate 5, thus securing the cylinder 7. After installation, the piston rod of the cylinder 7 passes upward through the mounting plate 5 and connects to the rubber seat 8.

[0026] Cylinder 7 is also connected to a solenoid valve, which controls the operation of cylinder 7. Specifically, cylinder 7 and solenoid valve are connected through an air pipe and connector. The solenoid valve is also connected to a compressed air source. The extension and retraction of cylinder 7 is controlled by manually controlling the energization and de-energization of the solenoid valve.

[0027] In order to reduce the impact of the chain conveyor 1 on the cylinder 7, a rubber pad 11 is provided between the mating surfaces of the cylinder 7 and the mounting plate 5. The rubber pad 11 separates the cylinder 7 and the mounting plate 5, and reduces the transmission of vibration from the mounting plate 5 to the cylinder 7.

[0028] Rubber pads 11 can also be installed above the mounting plate 5. In this way, the mounting plate 5 at the position of cylinder 7 has rubber pads 11 on both the top and bottom. After bolts pass through the two rubber pads 11 and the mounting plate 5, they are connected and fixed to the cylinder 7, which can better avoid the rigid connection between the cylinder 7 and the mounting plate 5. Moreover, rubber pads 11 can also be arranged at the joint surface between the end of the mounting plate 5 and the chain conveyor 1. In short, the purpose of using rubber pads 11 is to reduce the vibration impact on the weighing mechanism 6 during the operation of the chain conveyor 1.

[0029] The piston rod of cylinder 7 is vertically connected to a rubber seat 8, which in turn allows cylinder 7 to move the rubber seat 8 up and down. The rubber seat 8 is a cylindrical structure, and during installation, it is threadedly connected to the piston rod of cylinder 7. To improve the stability of the rubber seat 8 during installation, the upper end of the piston rod of cylinder 7 is a variable-diameter rod, and a support ring 12 is fitted onto the piston rod. The support ring 12 presses downward against the variable-diameter position of the piston rod, and the lower end face of the rubber seat 8 presses tightly against the support ring 12, thus providing better support for the rubber seat 8.

[0030] A load cell 9 is installed above the rubber seat 8. The load cell 9 can be a strain gauge load cell. The rubber seat 8 can buffer the impact force brought by the movement of the cylinder 7 and isolate the impact vibration of the cylinder 7 from the load cell 9.

[0031] The load cell 9 is connected to a signal amplifier, which uses an HX711 module to amplify the signal from the load cell 9 and convert it into a digital signal. The signal amplifier is connected to a microcontroller, which can be an Arduino or a Raspberry Pi. The signal amplifier transmits the weighing signal to the microcontroller for processing. The microcontroller is connected to a buzzer and an electronic display screen, which shows the real-time weight. Simultaneously, if the weight of plate 4 is within the set range, the buzzer does not sound; otherwise, the buzzer sounds to indicate whether plate 4 is overweight or underweight.

[0032] A lifting seat 10 is installed above the weighing sensor 9. The lifting seat 10 is a plastic frame structure. The cylinder 7 drives the lifting seat 10 to move up and down reciprocally. The lifting seat 10 moves upward over the conveying chain 3 of the chain conveyor 1 and evenly lifts the electrode plate 4.

[0033] Based on the arrangement of the six conveyor chains 3 on the chain conveyor 1, the lifting seat 10 includes a base plate 101 and a lifting plate 102. The center of the base plate 101 is connected and fixed to the probe of the weighing sensor 9. Here, a blind hole can be opened in the center of the base plate 101, and the blind hole and the probe are connected and fixed by snap-fit ​​or adhesive. In the initial state, the base plate 101 is located below the conveyor chains 3 of the chain conveyor 1 and there is a gap between it and the conveyor chains 3 so that when the base plate 101 moves upward, it will not interfere with the conveyor chains 3.

[0034] Lifting plates 102 are symmetrically arranged on both sides of the substrate 101, with the two lifting plates 102 alternating with the three conveyor chains 3 in a set. The lifting plates 102 are tunnel-shaped plates with a U-shape, meaning they are bent into an inverted U-shape, thus having a certain height and length. The lifting plates 102 uniformly lift the electrode plates 4 upwards. In the initial state, the lifting plates 102 are located below the electrode plates 4 and maintain a certain distance from them.

[0035] The principle of this invention is as follows: As the electrode plate 4 moves continuously on the chain conveyor 1, the operator manually controls the timing. When one electrode plate 4 is about to reach the position of the weighing mechanism 6, the solenoid valve is controlled to raise the cylinder 7. After the cylinder 7 rises, it ultimately drives the lifting seat 10 to rise, thereby lifting the electrode plate 4 upward and causing it to disengage from the conveyor chain 3. Then, the cylinder 7 is controlled to descend and reset, and the electrode plate 4 re-engages with the conveyor chain 3, and is once again driven to move by the chain conveyor 1.

[0036] During the aforementioned brief process, after the lifting seat 10 lifts and stabilizes the electrode plate 4, the weight of the electrode plate 4 is detected by the weighing sensor 9. The weighing result is displayed on an electronic screen and by checking whether a buzzer is running. This method allows for random weighing of the electrode plates 4 on the production line without affecting their normal transport.

[0037] It should be noted that: 1. Due to the short time window for each weighing, in order to ensure weighing accuracy, the load cell 9 can also be a piezoelectric-strain composite sensor. This type of sensor can respond quickly and weigh accurately, meeting the needs of both dynamic and static weighing. 2. Guide rods 13 are symmetrically arranged on both sides above the load cell 9. The guide rods 13 pass vertically upward through the base plate 101 and are slidably connected to the base plate 101, thereby preventing the lifting seat 10 from tilting when it contacts the electrode plate 4, which would affect the measurement accuracy of the load cell 9.

[0038] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A plate weighing device, arranged below the chain conveyor (1), characterized in that, It includes a mounting plate (5) and a weighing mechanism (6) vertically mounted on the mounting plate (5). The weighing mechanism (6) includes a cylinder (7), a rubber seat (8), a weighing sensor (9), and a lifting seat (10) arranged from bottom to top. The mounting plate (5) is detachably mounted below the chain conveyor (1). The cylinder (7) is mounted on the mounting plate (5). The piston rod of the cylinder (7) is vertically connected to the rubber seat (8). The weighing sensor (9) is mounted above the rubber seat (8). The lifting seat (10) is mounted above the weighing sensor (9). The cylinder (7) drives the lifting seat (10) to move up and down reciprocally. The lifting seat (10) moves upward over the conveying chain (3) of the chain conveyor (1) and evenly lifts the electrode plate (4).

2. The electrode plate weighing device according to claim 1, characterized in that, The mounting plate (5) is arranged horizontally. After the two ends of the mounting plate (5) are bent, they are bolted to both sides of the chain conveyor (1). Ribs (14) are also provided at the bends at both ends of the mounting plate (5). The weighing mechanism (6) is arranged perpendicular to the mounting plate (5).

3. The electrode plate weighing device according to claim 1, characterized in that, The cylinder (7) is arranged vertically below the mounting plate (5). The cylinder (7) and the mounting plate (5) are bolted together. A rubber pad (11) is also provided between the mating surfaces of the cylinder (7) and the mounting plate (5). The piston rod of the cylinder (7) passes upward through the mounting plate (5) and is connected to the rubber seat (8). The cylinder (7) is also connected to a solenoid valve.

4. The electrode plate weighing device according to claim 1, characterized in that, The rubber seat (8) is threadedly connected to the piston rod of the cylinder (7). The upper end of the piston rod of the cylinder (7) is a variable diameter round rod, and a support ring (12) is also sleeved on the piston rod. The lower end face of the rubber seat (8) is tightly pressed against the support ring (12).

5. The electrode plate weighing device according to claim 1, characterized in that, The weighing sensor (9) is a strain-type weighing sensor or a piezoelectric-strain composite sensor.

6. The electrode plate weighing device according to claim 1, characterized in that, The lifting seat (10) is a plastic frame structure. The lifting seat (10) includes a base plate (101) and a lifting plate (102). The center of the base plate (101) is connected and fixed to the probe of the weighing sensor (9). The base plate (101) is located below the conveying chain (3) of the chain conveyor (1) and there is a gap between it and the conveying chain (3). The lifting plates (102) are symmetrically arranged on both sides of the base plate (101). The lifting plates (102) are U-shaped plates. The lifting plates (102) are bent into an inverted U-shape. The lifting plates (102) evenly lift the electrode plate (4) upward.

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