Continuous coating polar plate surface drying device and method for lead-acid storage battery

Abstract

The invention discloses a continuously-coated polar plate surface drying device and method for a lead-acid storage battery, and relates to the technical field of lead-acid storage battery manufacturing, the continuously-coated polar plate surface drying device for the lead-acid storage battery comprises a bottom plate, and further comprises a conveying assembly for driving a polar plate to move and a surface drying assembly for heating the polar plate, and the middle section of the top end of the bottom plate is fixedly connected with a surface drying kiln; and a transverse through surface drying cavity is formed in the surface drying kiln. According to the invention, the conveying assembly is arranged to realize the conveying operation of the polar plate in a continuous state; by arranging a control panel, the surface drying quality of the current parameter is judged, and the surface drying parameter is automatically optimized according to a result; by arranging the surface drying assembly, surface drying operation is carried out on the polar plate.

Description

Technical Field

[0001] This invention relates to the field of lead-acid battery manufacturing technology, specifically to a surface drying device and method for continuous coating plates in lead-acid batteries. Background Technology

[0002] Continuous coating plates are high-consistency, high-efficiency lead-acid battery plates made by uniformly coating lead paste onto the grid strip using continuous coating, rolling and slitting processes. The surface drying device is set after the coating process. The plates enter the surface drying device in a continuous state and quickly remove free surface moisture under the action of moderate low temperature and uniform high-speed hot air, so that the lead paste forms a stable shell.

[0003] A search revealed a Chinese patent with publication number CN120490400A, which includes a conveying device and a drying kiln installed above the conveying device. A controller is located on one side of the drying kiln. The controller's program can convert relative humidity range information into moisture content information. A dry-wet temperature sensor detects the moisture content and relative humidity data to determine the corresponding range. The controller then controls the heating temperature of an adjustable heating device within the drying kiln. Lower moisture content results in a lower temperature inside the drying kiln, and vice versa. This real-time temperature control allows for the detection of moisture in the lead paste on the green electrode plate by monitoring the relative humidity at the end of the drying kiln, reducing manual operation and improving the consistency of surface moisture on the green electrode plate.

[0004] However, the above-mentioned scheme uses static drying to monitor the moisture content of the electrode plates, which lacks a mechanism to remove moisture. The evaporation of moisture from the electrode plates relies entirely on natural convection and diffusion, which easily creates a localized high-humidity environment on the electrode plate surface. In addition to low surface drying efficiency, there are significant differences in temperature and humidity at different locations in the kiln, which in turn leads to different drying shrinkage rates in different parts of the electrode plate. This generates internal stress, causing severe warping and deformation of the electrode plates, resulting in inconsistent product quality and rendering the moisture content data of the electrode plates meaningless. Summary of the Invention

[0005] The purpose of this invention is to provide a surface drying device and method for continuously coated plates in lead-acid batteries, which has the advantages of adaptive surface drying and rough judgment of moisture content, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a surface drying device for lead-acid battery plates, including a base plate, a conveying assembly for moving the plates, and a surface drying assembly for heating the plates. A surface drying kiln is fixedly connected to the top middle section of the base plate, and a transversely through surface drying chamber is provided inside the surface drying kiln. The conveying assembly includes an input port, an output port, and a drying section, which are arranged from left to right. The surface drying assembly is located inside the base plate. The surface drying assembly includes a reciprocating mechanism that runs synchronously with the conveying assembly and an interleaved mechanism that realizes opposing air supply. The reciprocating mechanism includes a transmission wheel that meshes and drives with the conveying assembly.

[0007] Preferably, the input port includes an input belt, and both ends of the inner wall of the input belt are frictionally connected to a belt roller. The output port includes an output belt, and both ends of the inner wall of the output belt are frictionally connected to a belt roller. The input belt and the output belt are located at the two ends above the base plate, respectively. Each of the rollers 1 and 2 is fixedly connected to a synchronous shaft 1 through its axis. Each synchronous shaft 1 is rotatably connected to the outer contour of both ends of its synchronous shaft 1. The bottom ends of multiple positioning frames 1 are fixedly connected to the upper surface of the base plate. Each synchronous shaft 1 is fixedly connected to a sprocket 1 at both ends. Multiple sprockets 1 on the same side are connected to a chain 1 through their outer contours for transmission.

[0008] Preferably, the drying section includes a surface drying belt disposed within the surface drying chamber. The surface drying belt is configured as a chain mesh with a hollow design. Each of the four corners of the inner wall of the surface drying belt is frictionally connected to a belt roller three. A synchronous shaft two is fixedly connected through the axis of each belt roller three. A positioning frame two is rotatably connected through the outer contours of both ends of each synchronous shaft two. Multiple positioning frames two are fixedly connected to the outer wall of the surface drying kiln. Both ends of the two upper synchronous shaft two are fixedly connected to sprocket two. Multiple sprocket two on the same side are meshed and connected to the inner wall of the chain one at the corresponding position.

[0009] Preferably, both the first and second belt rollers are equipped with pressure sensors to monitor the load-bearing capacity of the input and output belts.

[0010] Preferably, the first transmission wheel is driven by a built-in motor. The first transmission wheel is meshed and connected to the inner wall of the middle section of the first chain. The first transmission wheel is fixedly connected to the shaft center of the first transmission wheel. The end of the first transmission shaft away from the first transmission wheel is fixedly connected to the second transmission wheel. The second chain is meshed and connected to the outer contour of the second transmission wheel. The inner walls of both ends of the second chain are meshed and connected to the third transmission wheel. The shaft centers of the two third transmission wheels are fixedly connected to the second transmission shaft. The ends of the two second transmission shafts away from the third transmission wheel are fixedly connected to the missing gears. The teeth of the two missing gears are only partially driven. The outer contours of the ends of the two missing gears away from the second transmission shaft are intermittently meshed and connected to the first bevel gear and the second bevel gear. The shaft centers of the opposite faces of the first bevel gear and the second bevel gear at the same position are both fixedly connected to a connecting shaft.

[0011] Preferably, the interleaving mechanism includes a spur gear fixedly connected to the end of the bevel gear two away from the connecting shaft at the corresponding position. Racks are meshed and driven on the outer contours of both sides of the spur gear. Multiple racks are slidably connected to the inside of the base plate. Positioning plates are fixedly connected to the side of the outer contours of both ends of the racks that points towards the surface drying belt. Multiple nozzles are arranged at equal intervals on the side of each positioning plate that points towards the surface drying belt. Multiple racks, positioning plates and nozzles at the same height but on different sides are interleaved.

[0012] Preferably, the surface drying assembly further includes a control panel for adjusting the operating speed of the built-in motor of the transmission wheel. The control panel is controlled by an internal program to automatically adjust the air outlet speed and temperature of the nozzle. The control panel is connected to the pressure sensor signals of the belt roller one and belt roller two.

[0013] A method for surface drying of continuously coated plates for lead-acid batteries includes the following steps: S1. Wet plate calibration: Record the reading of the pressure sensor of roller 1 under no-load conditions. Then, the plate after coating process is received and transported by the input belt. Record the reading of the pressure sensor of roller 1 again. The difference between the two readings is the initial total mass under wet plate conditions. Then, calculate the average mass of wet plate per unit area. S2. Standard value acquisition: Cut a piece of electrode sample with a known area from the continuous electrode plate, dry it to an absolutely dry state, and record the average absolute dry mass per unit area of ​​this part of the electrode plate. S3, conveying and drying: the motor is started to drive the conveying component and the drying component to work. The conveying component inputs the electrode plate into the drying chamber, and the drying component uses alternating hot air to dry the surface of the electrode plate. S4. Automatic Control: Record the reading of the pressure sensor of roller 2 under no-load conditions. Then, record the reading of the pressure sensor of roller 2 again when the output belt receives the surface-dried plate. The difference between the two readings is the real-time mass of the plate after surface drying. Then, calculate the moisture content of the plate after surface drying by combining the average real-time mass per unit area of ​​the plate with the oven-dried mass and the average mass of the wet plate. Compare the calculated moisture content with the preset value, and automatically adjust the process parameters of the surface drying assembly through the control panel according to the comparison result.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By setting up a conveying component and connecting it to the coating stage in the production process, the present invention realizes the conveying operation of the continuous electrode plates and drives the surface drying component to work synchronously, effectively improving the automation level of the device.

[0015] 2. This invention uses a control panel to weigh the plates before and after surface drying to calculate the water loss of the plates during the surface drying process. Then, it compares the weight with a standard sample to calculate the water content of the plates after surface drying, thereby determining the current surface drying quality and automatically optimizing the surface drying parameters based on the results.

[0016] 3. By setting up a surface drying component, the present invention performs surface drying on the electrode plate through reciprocating hot air drying. During this process, the overall heating time and heating intensity of different areas on the electrode plate surface remain consistent, effectively ensuring the average heating effect of the electrode plate, thereby improving the surface drying quality of the solution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a cross-sectional view of the main structure of the present invention; Figure 3 This is a schematic diagram of the framework of the present invention; Figure 4 This is a schematic diagram of the conveying component of the present invention; Figure 5 This is a schematic diagram of the drying belt structure of the present invention; Figure 6 This is a schematic diagram of the surface drying component of the present invention; Figure 7 This is a schematic diagram of the reciprocating mechanism of the present invention; Figure 8 This is a schematic diagram of the interlacing mechanism of the present invention; Figure 9 This is a flowchart illustrating the overall workflow of the present invention.

[0018] In the diagram: 1. Base plate; 11. Surface drying kiln; 12. Surface drying chamber; 2. Input belt; 21. Belt roller one; 3. Output belt; 31. Belt roller two; 4. Synchronous shaft one; 41. Positioning frame one; 42. Sprocket one; 43. Chain one; 5. Surface drying belt; 51. Belt roller three; 52. Synchronous shaft two; 53. Sprocket two; 54. Positioning frame two; 6. Drive wheel one; 61. Drive shaft one; 62. Drive wheel two; 63. Chain two; 64. Drive wheel three; 65. Drive shaft two; 66. Missing gear; 67. Bevel gear one; 68. Bevel gear two; 69. Connecting shaft; 7. Spur gear; 71. Rack; 72. Positioning plate; 73. Nozzle. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1:

[0021] Please see Figures 1 to 9 The present invention provides a technical solution: a surface drying device for lead-acid battery continuous coating plates, including a base plate 1, characterized in that: it further includes a conveying component for moving the plates and a surface drying component for heating the plates, and a surface drying kiln 11 is fixedly connected to the top middle section of the base plate 1, and a horizontally through surface drying cavity 12 is opened inside the surface drying kiln 11. The conveying assembly includes an input port, an output port, and a drying section, which are arranged from left to right. The surface drying assembly is disposed inside the base plate 1. The surface drying assembly includes a reciprocating mechanism that runs synchronously with the conveying assembly and an interleaved mechanism that realizes opposing air supply. The reciprocating mechanism includes a transmission wheel 6 that is meshed and connected with the conveying assembly.

[0022] In this scheme, the conveying component is used to complete the conveying operation after the continuous coating process of the electrode plate, and the wet electrode plate in a continuous state is sent into the surface drying chamber 12. The surface drying component simultaneously performs a rapid surface drying operation on the electrode plate.

[0023] The reciprocating and staggered mechanisms enable circulating airflow to the surface of the electrode plates, thereby eliminating drying marks caused by the fixed airflow mode. Furthermore, the synchronous airflow from top to bottom effectively ensures the consistency of temperature and humidity in different areas within the surface drying chamber 12, further improving the surface drying quality of the solution.

[0024] Example 2:

[0025] Please see Figures 3 to 5 This embodiment further illustrates the following based on Implementation 1: The input port includes an input belt 2, and both ends of the inner wall of the input belt 2 are connected to a belt roller 21 by friction drive; the output port includes an output belt 3, and both ends of the inner wall of the output belt 3 are connected to a belt roller 31 by friction drive; the input belt 2 and the output belt 3 are respectively located at the two ends above the base plate 1. Each of the rollers 21 and 31 is fixedly connected to a synchronous shaft 4 through its axis. Each synchronous shaft 4 is rotatably connected to a positioning frame 41 through its outer contour at both ends. The bottom ends of the multiple positioning frames 41 are fixedly connected to the upper surface of the base plate 1. Each synchronous shaft 4 is fixedly connected to a sprocket 42 at both ends. The multiple sprockets 42 on the same side are connected to a chain 43 through their meshing outer contours.

[0026] The drying section includes a surface drying belt 5 disposed in the surface drying chamber 12. The surface drying belt 5 is configured as a chain mesh with a hollow design. Each of the four corners of the inner wall of the surface drying belt 5 is frictionally driven connected to a belt roller 3 51. A synchronous shaft 2 52 is fixedly connected through the axis of each belt roller 3 51. A positioning frame 2 54 is rotatably connected through the outer contours of both ends of each synchronous shaft 2 52. Multiple positioning frames 2 54 are fixedly connected to the outer wall of the surface drying kiln 11. Both ends of the two upper synchronous shafts 2 52 are fixedly connected to sprockets 2 53. Multiple sprockets 2 53 on the same side are meshed and driven through the inner wall of the chain 1 43 at the corresponding position.

[0027] Both the first belt roller 21 and the second belt roller 31 are equipped with pressure sensors that monitor the load-bearing capacity of the input belt 2 and the output belt 3.

[0028] First, record the reading of the pressure sensor on roller 21 when the input belt 2 is unloaded. This value is the tare weight of the input belt 2. Subsequent measurements need to subtract this value to eliminate the influence of the weight of the input belt 2 itself. Then, the electrode plate that has completed the continuous coating process is supported by the input belt 2. With the device stopped, record the reading of the pressure sensor on roller 21 when the electrode plate is laid flat on the surface of the input belt 2. This value minus the tare weight of the input belt 2 is the initial total mass of the wet electrode plate. Since the area of ​​the electrode plate laid flat on the surface of the input belt 2 is known, the average initial mass per unit area of ​​the wet electrode plate can be calculated.

[0029] Furthermore, the surface drying assembly is activated. Since the drive wheel 6 is meshed with the conveying assembly, the conveying assembly starts synchronously. At this time, the chain 43 drives the belt rollers 21, 31, and 51 to rotate synchronously through the sprockets 42 and 53. The input belt 2 rotates synchronously, thus conveying the electrode plate to the surface of the surface drying belt 5. The electrode plate completes the surface drying operation on the surface of the surface drying belt 5 under the influence of the surface drying assembly. Subsequently, the surface-dried electrode plate is conveyed to the surface of the output belt 3.

[0030] Record the reading of the pressure sensor of belt roller 31 when the output belt 3 is unloaded, and mark it as the tare weight of the output belt 3; when the surface-dried electrode plate is laid flat on the surface of the output belt 3, the control device stops the machine and records the reading of the pressure sensor of belt roller 31 at this time. This value minus the tare weight of the output belt 3 is the real-time mass of the surface-dried electrode plate, and then the average real-time mass per unit area of ​​the surface-dried electrode plate is calculated.

[0031] It should be noted that since the surface drying belt 5 is set as a chain mesh with a hollow design, the hot air delivered by the surface drying assembly located below the surface drying chamber 12 can pass through the mesh without obstruction and blow directly onto the lower surface of the electrode plate, thereby ensuring the consistency of the surface drying rate on the upper and lower surfaces of the wet electrode plate.

[0032] On the other hand, combining Figure 4 and Figure 5 It can be seen that the input belt 2, the surface dry belt 5, and the output belt 3 are driven by the chain 43 and the sprocket 42 to ensure that their conveying direction is always consistent. The positioning frame 41 and the synchronous shaft 4 provide limiting support for the belt roller 21, the input belt 2, the belt roller 31, and the output belt 3. The positioning frame 54 has a similar effect to the positioning frame 41, realizing the limiting support for the synchronous shaft 52 and the belt roller 51. The sprocket 53 and the chain 43 work together to drive the upper belt roller 51 to achieve the conveying effect of the surface dry belt 5. The lower belt roller 51 acts as a driven part to ensure the tension effect of the surface dry belt 5.

[0033] Example 3:

[0034] Please see Figures 6 to 8 This embodiment further illustrates the following based on Embodiment 2: The transmission wheel 6 is driven by a built-in motor. The transmission wheel 6 is meshed and connected to the inner wall of the middle section of the chain 43. A transmission shaft 61 is fixedly connected to the axis of the transmission wheel 6. A transmission wheel 62 is fixedly connected to the end of the transmission shaft 61 away from the transmission wheel 6. A chain 63 is meshed and connected to the outer contour of the transmission wheel 62. Transmission wheels 64 are meshed and connected to the inner walls of both ends of the chain 63. A transmission shaft 65 is fixedly connected to the center of each of the two transmission wheels 64. A missing gear 66 is fixedly connected to the end of each of the two transmission shafts 65 away from the transmission wheel 64. The teeth of each of the two missing gears 66 are only partially driven. A bevel gear 67 and a bevel gear 68 are intermittently meshed on the outer contour of the end of each of the two missing gears 66 away from the transmission shaft 65. A connecting shaft 69 is fixedly connected to the center of the opposite face of the bevel gear 67 and the bevel gear 68 at the same position.

[0035] The interleaved mechanism includes a spur gear 7 fixedly connected to the end of the bevel gear 68 away from the connecting shaft 69. Both sides of the spur gear 7 are meshed with racks 71. Multiple racks 71 are slidably connected to the inside of the base plate 1. Both ends of the racks 71 are fixedly connected to the side of the outer contour pointing to the surface drying belt 5. Each positioning plate 72 is provided with multiple nozzles 73 arranged at equal intervals on the side of the side of the surface drying belt 5. Multiple racks 71, positioning plates 72 and nozzles 73 at the same height but on different sides are interleaved.

[0036] The surface drying assembly also includes a control panel for adjusting the running speed of the built-in motor of the transmission wheel 6. The control panel is controlled by an internal program to automatically adjust the air outlet speed and temperature of the nozzle 73. The control panel is connected to the pressure sensor signals of the belt roller 21 and the belt roller 31.

[0037] When surface drying is required, the built-in motor is started to drive the transmission wheel 6 to rotate. The transmission wheel 6 synchronously drives the chain 43 to rotate. The chain 43 further drives the conveying assembly, which conveys the electrode plate from the surface of the input belt 2 to the surface of the surface drying belt 5 to start the surface drying operation.

[0038] At the same time, transmission wheel 6 drives transmission shaft 61 and transmission wheel 62 to rotate synchronously. Transmission wheel 62 further drives transmission wheel 64, transmission shaft 65 and missing gear 66 to rotate synchronously. Since the missing gear 66 is intermittently meshed with bevel gear 67 and bevel gear 68 at the corresponding positions, the missing gear 66 can only mesh with one of bevel gear 67 or bevel gear 68 at the same time.

[0039] like Figure 7 As shown, in the initial state, the missing gear 66 meshes with the first bevel gear 67. At this time, the missing gear 66, along with the rotation of the first transmission wheel 6, will drive the first bevel gear 67 to rotate synchronously. Since the first bevel gear 67 and the corresponding second bevel gear 68 are fixedly connected through the connecting shaft 69, the missing gear 66 drives the first bevel gear 67 and the second bevel gear 68 to rotate synchronously.

[0040] As the missing gear 66 rotates further, it disengages from bevel gear 67 and engages with bevel gear 68 at the corresponding position. At this time, the missing gear 66 drives bevel gear 68 and bevel gear 67 to rotate synchronously. Since bevel gear 67 and bevel gear 68 at the same position are engaged on both sides of the missing gear 66, when the missing gear 66 engages with bevel gear 67 or bevel gear 68, the rotation directions of bevel gear 67 and bevel gear 68 are opposite.

[0041] Taking the case where gear 66 always rotates clockwise as an example, such as Figure 7 As shown, in the initial state, the missing gear 66 drives the first bevel gear 67 and the second bevel gear 68 to rotate. At this time, both the first bevel gear 67 and the second bevel gear 68 rotate counterclockwise. When the missing gear 66 meshes with the second bevel gear 68, it drives the second bevel gear 68 and the first bevel gear 67 to rotate clockwise. Since the teeth of the missing gear 66 are set to half stroke, the single rotation amplitude of the first bevel gear 67 and the second bevel gear 68 is also 180°. The movement trajectory of the first bevel gear 67 and the second bevel gear 68 is a reciprocating cycle that automatically reverses direction after rotating half a circle.

[0042] Furthermore, since the spur gear 7 is fixedly connected to the bevel gear 68, meaning the motion trajectory of the spur gear 7 is consistent with that of the bevel gear 68, the spur gear 7 is also in a reciprocating cyclic motion of clockwise half a turn – counterclockwise half a turn – clockwise half a turn; at this time, the racks 71 meshing on both sides of the spur gear 7 move horizontally in sync, such as... Figure 8As shown, when the spur gear 7 rotates clockwise, the rack 71 on the left drives the corresponding positioning plate 72 and nozzle 73 to slide to the right, and the rack 71 on the right drives the corresponding positioning plate 72 and nozzle 73 to slide to the left; when the spur gear 7 rotates counterclockwise, the two racks 71 automatically reverse direction, that is, the positioning plate 72 and nozzle 73 maintain a reciprocating cycle of alternating motion.

[0043] It should be noted that the air supply effect on the electrode surface is achieved through the nozzle 73. The reciprocating motion of the nozzle 73 can further promote the convection of hot and cold air in the surface drying chamber 12, accelerate the evaporation of moisture on the electrode surface, and at the same time alleviate the situation of water molecules remaining in the surface drying chamber 12. Furthermore, the nozzle 73, which is in a staggered motion state, can ensure that the hot air is evenly diffused to the surface of the electrode, thereby avoiding uneven heating of the electrode surface and the generation of drying lines, effectively improving the surface drying quality of the solution.

[0044] Example 4:

[0045] Please see Figure 9 This embodiment further illustrates, based on Embodiment 3, a method for surface drying of continuously coated plates for lead-acid batteries, comprising the following steps: S1. Wet plate calibration: Record the reading of the pressure sensor of roller 21 under no-load condition of input belt 2. Then, the plate after coating process is received and transported through input belt 2. Record the reading of the pressure sensor of roller 21 again. The difference between the two readings is the initial total mass under wet plate condition. Then, calculate the average initial mass of wet plate per unit area. S2. Standard value acquisition: Cut a piece of electrode sample with a known area from the continuous electrode plate, dry it to an absolutely dry state, and record the average absolute dry mass per unit area of ​​this part of the electrode plate. S3, conveying and drying: the motor is started to drive the conveying component and the drying component to work. The conveying component inputs the electrode plate into the drying chamber 12, and the drying component uses alternating hot air to dry the surface of the electrode plate. S4. Automatic Control: Record the reading of the pressure sensor of roller 2 31 when the output belt 3 is unloaded. Then, after the electrode plate is surface-dried, the reading of the pressure sensor of roller 2 31 is recorded again through the output belt 3. The difference between the two readings is the real-time mass of the electrode plate after surface drying. Then, the moisture content of the electrode plate after surface drying is calculated by combining the average real-time mass per unit area of ​​the electrode plate with the oven-dried mass and the average mass of the wet plate. The calculated moisture content is compared with the preset value, and the process parameters of the surface drying component are automatically adjusted through the control panel according to the comparison result.

[0046] In S1, the average initial mass per unit area of ​​the wet electrode plate = initial total mass / total area of ​​the electrode plate laid flat on the input belt 2, and the initial total mass = the second reading of the pressure sensor of belt roller 21 - the first reading.

[0047] In S2, the average dry mass per unit area of ​​the electrode plate = the absolute dry mass of the sample / the cut area.

[0048] In S4, the average real-time mass per unit area of ​​the electrode plate = real-time mass after surface drying / total area of ​​the electrode plate laid flat on the output belt 3, and the real-time mass after surface drying = second reading of the pressure sensor of belt roller 31 - first reading.

[0049] In summary, the average moisture content per unit area after surface drying of the electrode plate = (average real-time mass - average oven-dried mass) / average initial mass, where the difference between the average real-time mass and the average oven-dried mass is the weight of the remaining moisture inside the electrode plate per unit area after the surface drying process.

[0050] Due to the consistency of the process, the average moisture content is the real-time moisture content of the entire electrode plate after the surface drying process. The real-time moisture content is compared with the preset moisture content. If the real-time moisture content is consistently higher than the preset value, the control panel automatically increases the outlet air temperature and air speed of nozzle 73 and enhances the drying force by reducing the rotation of transmission wheel 6. If the real-time moisture content is close to or lower than the preset value, the control panel adjusts in the opposite direction to prevent over-drying.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous coating plate surface drying device for lead-acid batteries, comprising a base plate (1), characterized in that: Also include the conveying assembly with the moving polar plate and the surface drying assembly to realize the polar plate heating, the top middle section of the bottom plate (1) is fixedly connected with the surface drying kiln (11), the inside of the surface drying kiln (11) is provided with the transversely through surface drying cavity (12); The conveying assembly includes an input port, an output port and a drying part, the input port, the drying part and the output port are arranged in sequence from left to right; The surface drying assembly is arranged in the inside of the bottom plate (1), the surface drying assembly includes a reciprocating mechanism synchronously operated with the conveying assembly and an interlaced mechanism for realizing the opposite air supply, the reciprocating mechanism includes a transmission wheel one (6) in meshing transmission connection with the conveying assembly.

2. A continuous coating and drying device for lead acid battery plates as claimed in claim 1, wherein: The input port includes an input belt (2), the both ends of the inner wall of the input belt (2) are frictionally and transmissionally connected with a belt roller one (21), the output port includes an output belt (3), the both ends of the inner wall of the output belt (3) are frictionally and transmissionally connected with a belt roller two (31), the input belt (2) and the output belt (3) are respectively located at the both ends above the bottom plate (1); The axis of each belt roller one (21) and belt roller two (31) is fixedly connected with a synchronous shaft one (4), the outer contour of the both ends of each synchronous shaft one (4) is rotatably connected with a positioning frame one (41), the bottom ends of a plurality of positioning frame ones (41) are fixedly connected to the upper surface of the bottom plate (1), the both ends of each synchronous shaft one (4) are fixedly connected with a chain wheel one (42), a plurality of chain wheel ones (42) on the same side are jointly and transmissionally connected with a chain one (43) on the outer contour.

3. A continuous coating and drying device for lead acid battery plates as claimed in claim 1, wherein: The drying part includes a surface drying belt (5) arranged in the surface drying cavity (12), the surface drying belt (5) is arranged in a chain net hollow type, the four corners of the inner wall of the surface drying belt (5) are frictionally and transmissionally connected with a belt roller three (51), the axis of each belt roller three (51) is fixedly connected with a synchronous shaft two (52), the outer contour of the both ends of each synchronous shaft two (52) is rotatably connected with a positioning frame two (54), a plurality of positioning frame twos (54) are fixedly connected to the outer wall of the surface drying kiln (11), the both ends of the two synchronous shaft twos (52) above are fixedly connected with a chain wheel two (53), a plurality of chain wheel twos (53) on the same side are transmissionally connected with the inner wall of the corresponding chain one (43).

4. A continuous coating and drying device for lead acid battery plates as defined in claim 2, wherein: The belt roller one (21) and the belt roller two (31) are provided with pressure sensors for monitoring the bearing capacity of the input belt (2) and the output belt (3).

5. A continuous pasting plate drying device for lead acid batteries as claimed in claim 4 wherein: The transmission wheel one (6) is driven by the built-in motor, the transmission wheel one (6) is engaged in transmission connection on the inner wall of the middle section of the chain one (43), the transmission shaft one (61) is fixedly connected to the shaft center of the transmission wheel one (6), the transmission wheel two (62) is fixedly connected to the end, away from the transmission wheel one (6), of the transmission shaft one (61), the chain two (63) is engaged in transmission connection on the outer contour of the transmission wheel two (62), the transmission wheel three (64) is engaged in transmission connection on the inner wall of the two ends of the chain two (63), the transmission shaft two (65) is fixedly connected to the shaft center of the two transmission wheel threes (64), the toothless gear (66) is fixedly connected to the end, away from the transmission wheel three (64), of the two transmission shaft twos (65), the teeth of the two toothless gears (66) are only set half, the bevel gear one (67) and the bevel gear two (68) are intermittently engaged in transmission connection on the outer contour of the end, away from the transmission shaft two (65), of the two toothless gears (66), the connecting shaft (69) is fixedly connected to the shaft center of the opposite surfaces of the same position bevel gear one (67) and bevel gear two (68).

6. A continuous coating and drying device for lead acid battery plates as defined in claim 5, wherein: The staggered mechanism includes the straight gear (7) fixedly connected to the end, away from the connecting shaft (69), of the corresponding position bevel gear two (68), the rack (71) is engaged in transmission connection on the outer contour of the two sides of the straight gear (7), the plurality of racks (71) are limitingly and slidably connected to the inside of the bottom plate (1), the positioning plate (72) is fixedly connected to the side, pointing to the surface drying belt (5), of the two ends of the rack (71), a plurality of equally spaced nozzle (73) are arranged on the side, pointing to the surface drying belt (5), of each positioning plate (72), and the plurality of racks (71), positioning plates (72) and nozzles (73) of the same height and different sides are staggered.

7. A continuous coating and drying device for lead acid battery plates as defined in claim 6, wherein: The surface drying assembly further comprises a control panel for adjusting the running speed of the built-in motor of the transmission wheel one (6), the control panel automatically adjusts the air outlet rate and temperature of the nozzle (73) through internal program control, and the control panel is signal connected with the pressure sensors of the belt roller one (21) and the belt roller two (31).

8. A kind of surface drying method of continuous coating plate for lead-acid battery, it is applied to the surface drying device of a kind of continuous coating plate for lead-acid battery described in any one of claims 1 to 7, it is characterized by: The method comprises the following steps: S1, wet plate calibration: record the reading of the belt roller one (21) pressure sensor in the no-load state of the input belt (2), then pass the coated plate through the input belt (2), record the reading of the belt roller one (21) pressure sensor again, the difference between the two readings is the initial total mass in the wet plate state, and then the average mass per unit area of the wet plate is calculated; S2, standard value acquisition: cut a plate sample with a known area from the continuous state plate, and dry it to an absolutely dry state, and record the average absolute dry mass per unit area of the plate; S3, conveying and drying: start the motor to drive the conveying assembly and the surface drying assembly to work, the conveying assembly inputs the plate into the surface drying cavity (12), and the surface drying assembly performs air drying operation on the surface of the plate through staggered and circulating hot air; S4, automatic control: record the reading of the second belt roller (31) pressure sensor in the empty state of the output belt (3), then record the reading of the second belt roller (31) pressure sensor again after the output belt (3) carries the plate after drying, and the difference between the two readings is the real-time mass of the plate after drying. Then, by the average real-time mass per unit area of the plate, combined with the absolute dry mass and the average mass of the wet plate, the moisture content of the plate after drying is calculated. Compare the calculated moisture content with the preset value, and automatically adjust the process parameters of the drying assembly through the control panel according to the comparison result.

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