Alkaline battery steel shell high-speed coating production line

Abstract

The invention discloses an alkaline battery steel shell high-speed coating production line which comprises a steel shell conveying and sequencing system, a steel shell coating machine, a conductive film spraying system, a drying device and a detection device. The steel shell conveying and sequencing system is provided with two sets of conveying paths which are in bilateral symmetry; the steel shell conveying and sequencing system, the steel shell coating machine, the drying device and the detection device are sequentially arranged from front to back, the conductive film spraying system is located on the side face of the steel shell conveying and sequencing system, production efficiency is improved, the defective product rate is reduced, manual dependence is reduced, meanwhile, stability and consistency of product quality are ensured, equipment layout is optimized, and the production cost is reduced. The occupied production space is reduced, the environmental adaptability of the production line is enhanced, the flexibility and the market response speed of the production line are improved, and the requirements of the modern battery manufacturing industry for high-efficiency and high-quality production are met.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a high-speed coating production line for alkaline battery steel shells. Background Art

[0002] The production of alkaline battery steel shells is a key link in the battery manufacturing process, and the quality of the steel shells directly affects the performance and safety of the battery. In the traditional production process of alkaline battery steel shells, the coating process of the steel shells often faces problems such as low efficiency and unstable quality control. Specifically, the production lines in the prior art have the following major problems: 1. Traditional steel shell coating production lines are mostly single-line operations, which cannot meet the needs of high-speed and large-volume production, resulting in low production efficiency and unable to meet the market's rapidly growing demand for battery output; 2. Many links rely on manual operation, making the production process susceptible to human factors, such as operational errors and fatigue, resulting in large fluctuations in product quality; 3. The transportation, coating, drying and testing of the steel shells are separated, and the equipment integration is low, resulting in complex production processes, low material flow efficiency, and occupying a large production space. In view of the above problems, the alkaline battery steel shell coating production line in the prior art urgently needs an integrated, automated, and efficient production solution to improve production efficiency, reduce defective product rates, reduce manual dependence, and ensure the stability and consistency of product quality. Summary of the invention

[0003] In order to solve the above technical problems, the present invention relates to a high-speed coating production line for alkaline battery steel shells. The structure is simple and reliable, which effectively solves the above technical problems and is suitable for popularization and use. In order to achieve the above purpose, the present invention is implemented by the following technical solutions:

[0004] A high-speed coating production line for alkaline battery steel shells, comprising a steel shell conveying and sorting system, a steel shell coating machine, a conductive film spraying system, a drying device, and a detection device. The steel shell conveying and sorting system is provided with two groups of conveying paths that are symmetrical on the left and right. The steel shell conveying and sorting system, the steel shell coating machine, the drying device, and the detection device are arranged in sequence from front to back. The conductive film spraying system is located on the side of the steel shell conveying and sorting system. The steel shell conveying and sorting system is used to send the steel shells that have been sorted and arranged and have qualified barrel sizes into the track input end of the steel shell coating machine, and send the steel shells that have not been sorted back to the discharge hopper, and at the same time, send the steel shells that have been sorted but have unqualified barrel sizes to the waste collection box. The steel shell coating machine is used to simultaneously coat the inside of the barrel of the steel shells conveyed by the two groups of conveying paths of the steel shell conveying and sorting system. The conductive film spraying system is connected to the spray gun inside the steel shell coating machine. The drying device is used to dry the coated steel shells, and the detection device is used to detect the dried steel shells.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: the steel shell conveying and sorting system includes a discharge hopper, a vertical elevator, and a material distribution and conveying mechanism. The two groups of discharge hoppers are symmetrically arranged on the left and right. The top of the discharge hopper is provided with an opening. The inside of the discharge hopper is provided with a guide surface inclined downward. The bottom end of the guide surface faces the loading port of the discharge hopper. The two groups of vertical elevators are respectively arranged on the front side of the discharge hopper. The conveyor belts of the vertical elevators are arranged in an inverted L row. The bottom of the vertical elevator is connected with the loading port of the discharge hopper. The top of the vertical elevator is provided with a drop hopper. The material distribution and conveying mechanism includes a screening hopper, a guide rod, a driving motor, a synchronous wheel, a collecting hopper, a first horizontal conveyor, and a support. The support is fixedly arranged between the vertical elevator and the steel shell coating machine. The collecting hopper is fixedly installed above the support. The collecting hopper is arranged inclined downward from front to back. The lower end of the collecting hopper is provided with a cylindrical dropping part. The cylindrical dropping part The part is located on the inner side of the waste collection box, and the two guide rods are symmetrically arranged and located above the collecting hopper. The axial direction of the guide rod is parallel to the upper edge of the collecting hopper, and the spacing between the two guide rods is adapted to the shell body of the steel shell. The end of each guide rod is fixedly connected to the synchronous wheel, and the two synchronous wheels are bonded to each other, and one of the synchronous wheels is connected to the output shaft of the driving motor through a transmission belt. The screening hopper is arranged above the guide rod and below the drop hopper. The bottom of the screening hopper is provided with a through hole leading to the inner gap of the two guide rods. A return pipe is also provided on one side of the screening hopper, and the return pipe faces the input end of the first horizontal conveyor. The guide rod is used to send the steel shells that have been sorted and arranged and have qualified barrel size into the track input end of the steel shell coating machine. The first horizontal conveyor is used to send the unsorted steel shells back to the discharge hopper. The collecting hopper is used to send the steel shells that have been sorted and arranged but have fallen from the gap of the guide rods due to unqualified barrel size to the waste collection box.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the steel shell coating machine includes a positioning and conveying turntable and a coating module. The positioning and conveying turntable is arranged at the transmission end of the guide rod of the steel shell conveying and sorting system. The axial direction of the positioning and conveying turntable is perpendicular to the guide rod. The positioning and conveying turntable rotates intermittently. The positioning and conveying turntable is provided with a plurality of positioning grooves distributed around a circular array. Magnetic adsorption blocks are installed in the positioning grooves. The positioning and conveying turntable is used to send the steel shell sent by the guide rod into the track of the coating module.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the conductive film spraying system includes a chassis, a lifter is provided at the inner bottom of the chassis, a container is installed on the lifting plate of the lifter, a fixed plate is also provided on the inner side of the chassis, a stirring module is installed on the fixed plate, after the lifter lifts the container, the stirring shaft of the stirring module extends into the inner side of the container, and a pump body is also provided in the chassis, and the pump body connects the container with the spray gun of the coating module through a pipe.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the drying device includes a second horizontal conveyor, the input end of the second horizontal conveyor is located below the guide rail outlet end of the coating module, the second horizontal conveyor has a synchronous belt that can move back and forth in a horizontal direction, the synchronous belt has a plurality of grooves evenly spaced along the length direction, the grooves make the axial direction of the steel shell be arranged in the left and right directions, a high-pressure hot air knife is installed on one side of the second horizontal conveyor through a support frame, the air outlet of the high-pressure hot air knife faces the synchronous belt, a high-pressure hot air blower is arranged below the second horizontal conveyor, the high-pressure hot air blower is connected to the high-pressure hot air knife, a blanking shield is provided at the transmission end of the second horizontal conveyor, and a material box is provided below the blanking shield.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the detection device includes a support seat, a detection probe, an air blow pipe, and a waste box. A support seat is fixed on the rear side of the second horizontal conveyor, and the support seat is located between the high-pressure hot air knife and the blanking baffle cover. The detection probe and the air blow pipe are fixed on the support seat, and the detection probe is located on the front side of the air blow pipe. The detection end of the detection probe and the air outlet end of the air blow pipe are both facing the synchronous belt of the second horizontal conveyor, and the waste box is arranged below the support seat.

[0010] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: the present solution realizes the full process automation control from steel shell conveying sorting, coating, drying to testing through the integrated alkaline battery steel shell high-speed coating production line, which significantly improves production efficiency, reduces defective product rate, reduces manual dependence, and ensures the stability and consistency of product quality. In addition, the solution optimizes the equipment layout, reduces the production space occupation, enhances the environmental adaptability of the production line, improves the flexibility and market response speed of the production line, and meets the needs of modern battery manufacturing industry for high-efficiency and high-quality production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the production line;

[0012] Figure 2 It is a schematic diagram of the steel shell conveying and sorting system;

[0013] Figure 3 It is a schematic diagram of a steel shell coating machine;

[0014] Figure 4 It is a schematic diagram of a drying device and a detection device;

[0015] Figure 5 It is a schematic diagram of the conductive film spraying system. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0017] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate directions or positional relationships based on the attached Figure 1 The directions or positional relationships shown are only for the convenience of describing the present invention, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0018] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0019] In order to solve the above technical problems, Figure 1-5As shown, the present invention designs an alkaline battery steel shell high-speed coating production line, including a steel shell conveying and sorting system 1, a steel shell coating machine 2, a conductive film spraying system 3, a drying device 4, and a detection device 5. The steel shell conveying and sorting system 1 is provided with two groups of conveying paths that are symmetrical on the left and right. The steel shell conveying and sorting system 1, the steel shell coating machine 2, the drying device 4, and the detection device 5 are arranged in sequence from front to back. The conductive film spraying system 3 is located on the side of the steel shell conveying and sorting system 1. The steel shell conveying and sorting system 1 is used The steel shells that have been sorted and arranged and have qualified barrel size are sent to the track input end of the steel shell coating machine 2, and the steel shells that have not been sorted are sent back to the discharge hopper 11, and the steel shells that have been sorted and arranged but have unqualified barrel size are sent to the waste collection box 112. The steel shell coating machine 2 is used to simultaneously coat the inside of the barrel of the steel shells transported by the two groups of conveying paths of the steel shell conveying and sorting system 1. The conductive film spraying system 3 is connected to the spray gun inside the steel shell coating machine 2, and the drying device 4 is used to dry the coated steel shells. The device 5 is used to detect the steel shell that has been dried. By integrating the steel shell conveying and sorting system 1, the steel shell coating machine 2, the conductive film spraying system 3, the drying device 4 and the detection device 5, a complete production line is formed, which realizes a continuous and efficient production process and greatly improves the production efficiency of the alkaline battery steel shell. Since the steel shell has been screened for size and quality before entering the coating process, it is ensured that only qualified steel shells enter the subsequent process, thereby improving the quality of the final product. Each device is arranged in sequence in the front and back directions, which reduces the time and space of material flow, makes the production line layout more compact, and improves the space utilization efficiency. The automation design of the entire production line reduces manual operation and labor intensity, and at the same time improves the continuous operation capacity of the production line. In general, it realizes the improvement of production efficiency, optimization of quality control, improvement of space utilization, enhancement of production flexibility, reduction of energy consumption, improvement of automation, convenience of maintenance and cleaning, improvement of environmental adaptability and improvement of safety, and provides an efficient, stable and reliable solution for the production of alkaline battery steel shells. .

[0020] It is further preferred in the present embodiment that the steel shell conveying and sorting system 1 comprises a discharge hopper 11, a vertical elevator 12, and a material distribution and conveying mechanism. The two groups of discharge hoppers 11 are symmetrically arranged on the left and right. The two symmetrical conveying paths improve the balance and stability of the system, while allowing double the steel shells to be processed at the same time, thereby improving the overall production efficiency. The top of the discharge hopper 11 is provided with an opening, and the interior of the discharge hopper 11 is provided with a guide surface inclined downward, and the bottom end of the guide surface faces the loading port of the discharge hopper 11. The two groups of vertical elevators 12 are respectively arranged on the front side of the discharge hopper 11, and the conveyor belts of the vertical elevator 12 are arranged in an inverted L row. The bottom of the vertical elevator 12 is connected to the loading port of the discharge hopper 11, and the top of the vertical elevator 12 is connected to the loading port of the discharge hopper 11. A drop hopper 13 is provided at the top, and the inverted L-shaped arrangement of the vertical elevator 12 effectively utilizes the space, and at the same time realizes the efficient vertical transmission of the steel shell from the discharge hopper 11 to the drop hopper 13, reducing the waiting and stacking time of the steel shell during the transportation process. The material distribution and conveying mechanism includes a screening hopper 14, a guide rod 15, a drive motor 16, a synchronous wheel 17, a collecting hopper 18, a first horizontal conveyor 19, and a support 110. The support 110 is fixedly arranged between the vertical elevator 12 and the steel shell coating machine 2. The collecting hopper 18 is fixedly installed above the support 110. The collecting hopper 18 is arranged downwardly from front to back. The lower end of the collecting hopper 18 is provided with a cylindrical drop portion, and the cylindrical drop portion is located on the inner side of the waste collection box 112. The two guide rods 15 are opposite to each other. The guide rod 15 is arranged and located above the collecting hopper 18, the axial direction of the guide rod 15 is parallel to the upper edge of the collecting hopper 18, the spacing between the two guide rods 15 is adapted to the body of the steel shell, the end of each guide rod 15 is fixedly connected to the synchronous wheel 17, the two synchronous wheels 17 are bonded to each other, one of the synchronous wheels 17 is connected to the output shaft of the driving motor 16 through a transmission belt, the screening hopper 14 is arranged above the guide rod 15 and below the drop hopper 13, the bottom of the screening hopper 14 is provided with a through hole leading to the inner gap of the two guide rods 15, and a return pipe 111 is further provided on one side of the screening hopper 14, the return pipe 111 faces the input end of the first horizontal conveyor 19, and the guide rod 15 is used to send the steel shells that have been sorted and arranged and have qualified barrel size into the steel shell coating machine 2, the first horizontal conveyor 19 is used to send the unsorted steel shells back to the discharge hopper 11. This design reduces the time and complexity of material return and improves the material flow efficiency. The collecting hopper 18 is used to send the steel shells that have been sorted but have fallen from the gap of the guide rod 15 due to unqualified barrel size to the waste collection box 112. The system can send the unsorted steel shells back to the discharge hopper 11 to ensure that only the sorted steel shells enter the coating machine, which improves the orderliness of the production process and the product quality. For the steel shells that have been sorted but have unqualified barrel size, the system can send them to the waste collection box 112. This size screening function reduces the risk of unqualified products flowing into subsequent processes and also realizes the automation of waste treatment.It reduces the labor cost and time of waste treatment, improves the consistency and reliability of products, and the automated sorting and screening reduces the need for manual operation, reduces labor intensity, reduces human errors, and improves the stability of the production process and the consistency of products.

[0021] It is further preferred in this embodiment that the steel shell coating machine 2 includes a positioning and conveying turntable 21 and a coating module 22, the positioning and conveying turntable 21 is arranged at the transmission end of the guide rod 15 of the steel shell conveying and sorting system 1, the axial direction of the positioning and conveying turntable 21 is perpendicular to the guide rod 15, the positioning and conveying turntable 21 rotates intermittently, the positioning and conveying turntable 21 is provided with a plurality of positioning grooves distributed around a circular array, and a magnetic adsorption block is installed in the positioning groove, the positioning and conveying turntable 21 is used to send the steel shell sent by the guide rod 15 into the track of the coating module 22, the intermittent rotation of the positioning and conveying turntable 21 ensures that the steel shell can be accurately positioned before entering the coating module 22, improves the accuracy and consistency of the coating process, and optimizes the spatial layout, making the entire coating area more compact, saving space on the production line, and the continuous rotation of the positioning and conveying turntable 21 and the coordinated work of the steel shell coating machine 2 ensure the continuity of the production process and reduce production interruptions caused by improper positioning.

[0022] In this embodiment, it is further preferred that the conductive film spraying system 3 includes a chassis 31, a lifter 32 is provided at the inner bottom of the chassis 31, a container 33 is installed on the lifting plate of the lifter 32, a fixed plate 34 is also provided on the inner side of the chassis 31, a stirring module 35 is installed on the fixed plate 34, and after the lifter 32 lifts the container 33, the stirring shaft of the stirring module 35 extends into the inner side of the container 33. The design of the lifter 32 and the container 33 in the chassis 31 makes the supply of the coating more accurate and controllable, and the lifter After the container 33 is raised by 32, the stirring module 35 can evenly stir the paint to ensure the quality of spraying. A pump body 36 is also provided in the chassis 31. The pump body 36 connects the container 33 with the spray gun of the coating module 22 through a pipeline, thereby realizing efficient transmission and use of the paint, reducing the waste of the paint, improving the utilization rate of the paint, simplifying the process of stirring and supplying the paint, making the operation easier, reducing the labor intensity of the operator, and ensuring the uniform mixing of the paint before spraying, thereby ensuring the stability and consistency of the spraying quality.

[0023] It is further preferred in this embodiment that the drying device 4 includes a second horizontal conveyor 41, the input end of the second horizontal conveyor 41 is located below the guide rail outlet end of the coating module 22, the second horizontal conveyor 41 has a synchronous belt 42 that can move back and forth in a horizontal direction, the synchronous belt 42 has a plurality of grooves evenly spaced along the length direction, the grooves make the axial direction of the steel shell be arranged in a left-right direction, a high-pressure hot air knife 43 is installed on one side of the second horizontal conveyor 41 through a support frame, the air outlet of the high-pressure hot air knife 43 faces the synchronous belt 42, and a heat exchanger 43 is provided below the second horizontal conveyor 41. A high-pressure hot air blower 44 is provided, and the high-pressure hot air blower 44 is connected to the high-pressure hot air knife 43. A blanking baffle 45 is provided at the transmission end of the second horizontal conveyor 41, and a material box 46 is provided below the blanking baffle 45. Through the design of the second horizontal conveyor 41, the steel shell can quickly enter the drying area after coating, realizing seamless connection with the coating process and improving the drying efficiency. Since the axial direction of the steel shell is arranged in the left and right directions, the high-pressure hot air knife 43 can evenly dry the inside of the steel shell, ensuring the uniform distribution of heat energy on the entire cross-section of the steel shell, avoiding the problem of local overheating or incomplete drying, and improving the drying quality.

[0024] It is further preferred in the present embodiment that the detection device 5 includes a support seat 51, a detection probe 52, an air blow pipe 53, and a waste box 54. The support seat 51 is fixed to one side of the rear portion of the second horizontal conveyor 41. The support seat 51 is located between the high-pressure hot air knife 43 and the blanking baffle 45. The detection probe 52 and the air blow pipe 53 are fixed on the support seat 51. The detection probe 52 is located on the front side of the air blow pipe 53. The detection end of the detection probe 52 and the air outlet end of the air blow pipe 53 are both facing the synchronous belt 42 of the second horizontal conveyor. The waste box 54 is arranged below the support seat 51. The arrangement of the detection device 5 ensures accurate quality inspection of the dried steel shell, thereby improving the reliability and consistency of product quality. The detection probe 52 and The coordinated use of the air blow pipe 53 can timely identify unqualified steel shells, and remove defective products from the production line through the air blow pipe 53, reducing the risk of defective products flowing into subsequent processes. The detection device 5 is located between the high-pressure hot air knife 43 and the blanking baffle 45, ensuring that the steel shell has completed quality inspection before entering the next process, avoiding invalid operations and improving overall production efficiency. The reasonable layout of the detection device 5 makes the production line more compact, reduces space occupancy, and is convenient for operators to monitor and maintain. The automated detection device 5 reduces the need for manual inspection, reduces labor intensity, and reduces detection errors caused by human factors. The integration of the detection device 5 improves the degree of automation of the production line, making the production process more stable and predictable.

[0025] During specific operation, the steel shells enter the vertical elevator 12 through the discharge hopper 11. After being lifted to a certain height, they are further diverted and sorted through the material distribution and conveying mechanism. The design of the discharge hopper 11 enables the steel shells to enter the vertical elevator 12 smoothly, and the inclined guide surface helps the steel shells to slide down smoothly. In the material distribution and conveying mechanism, the steel shells are screened by the screening hopper 14 and the guide rod 15. Qualified steel shells are sent to the steel shell coating machine 2, and unqualified steel shells fall into the collecting hopper 18 through the gap of the guide rod 15, and are finally sent to the waste collection box 112. Qualified steel shells are sent to the positioning and conveying turntable 21 of the steel shell coating machine 2 by the guide rod 15. The intermittent rotation of the turntable and the magnetic adsorption block ensure the precise positioning of the steel shells during the coating process. The coating module 22 coats the inside of the steel shell, and the steel shell after spraying enters the drying device 4. The synchronous belt 42 of the second horizontal conveyor 41 conveys the steel shell to the side of the high-pressure hot air knife 43 for uniform drying. The dried steel shell passes through the detection device 5 for quality inspection. The detection probe 52 and the blow pipe 53 work together to ensure that only qualified steel shells can enter the next process. Unqualified steel shells are blown out of the production line and fall into the waste box 54. The qualified steel shells continue to move along the second horizontal conveyor 41 and finally fall into the material box 46, completing the entire production process. During the entire work process, the operator continuously monitors the operating status of the production line to ensure the normal operation of the equipment and performs necessary maintenance and adjustments.

[0026] It is worth noting that the technical features such as motors, pump bodies, and conveyors involved in the patent application of this invention should be regarded as prior art. The specific structures, working principles, and possible control methods and spatial layout methods of these technical features can be selected according to conventional practices in the field and should not be regarded as the inventive points of this patent. This patent will not be further elaborated.

[0027] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made by technicians in the relevant technical field based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed coating production line for alkaline battery steel shells, characterized by: It includes a steel shell conveying and sorting system, a steel shell coating machine, a conductive film spraying system, a drying device, and a detection device. The steel shell conveying and sorting system is provided with two groups of conveying paths which are symmetrical on the left and right. The steel shell conveying and sorting system, the steel shell coating machine, the drying device, and the detection device are arranged in sequence from the front to the back. The conductive film spraying system is located on the side of the steel shell conveying and sorting system. The steel shell conveying and sorting system is used to send the steel shells which have been sorted and arranged and have qualified barrel sizes into the track input end of the steel shell coating machine, and to send the steel shells which have not been sorted back to the discharge hopper, and at the same time, send the steel shells which have been sorted and arranged but have unqualified barrel sizes to the waste collection box. The steel shell coating machine is used to simultaneously coat the inside of the barrel of the steel shells conveyed by the two groups of conveying paths of the steel shell conveying and sorting system. The conductive film spraying system is connected to the spray gun inside the steel shell coating machine. The drying device is used to dry the coated steel shells. The detection device is used to detect the dried steel shells.

2. The high-speed coating production line for alkaline battery steel shells according to claim 1 is characterized by: The steel shell conveying and sorting system includes a discharge hopper, a vertical elevator, and a material distribution and conveying mechanism. The two groups of discharge hoppers are symmetrically arranged on the left and right. The top of the discharge hopper is provided with an opening, and the inside of the discharge hopper is provided with a guide surface inclined downward, and the bottom end of the guide surface faces the upper material port of the discharge hopper. The two groups of vertical elevators are respectively arranged on the front side of the discharge hopper, and the conveyor belts of the vertical elevators are arranged in an inverted L row. The bottom of the vertical elevator is connected with the upper material port of the discharge hopper. A drop hopper is provided on the top of the vertical elevator. The material distribution and conveying mechanism includes a screening hopper, a guide rod, a driving motor, a synchronous wheel, a collecting hopper, a first horizontal conveyor, and a support. The support is fixedly arranged between the vertical elevator and the steel shell coating machine. The collecting hopper is fixedly installed above the support. The collecting hopper is arranged inclined downward from front to back. The lower end of the collecting hopper is provided with a cylindrical drop portion, and the cylindrical drop portion is located on the inner side of the waste collection box. , two guide rods are symmetrically arranged on the left and right and are located above the collecting hopper, the axial direction of the guide rod is parallel to the upper edge of the collecting hopper, the spacing between the two guide rods is adapted to the shell body of the steel shell, the end of each guide rod is fixedly connected to the synchronous wheel, the two synchronous wheels are bonded to each other, one of the synchronous wheels is connected to the output shaft of the driving motor through a transmission belt, the screening hopper is arranged above the guide rod and below the drop hopper, the bottom of the screening hopper is provided with a through hole leading to the inner gap of the two guide rods, and a return pipe is also provided on one side of the screening hopper, the return pipe faces the input end of the first horizontal conveyor, the guide rod is used to send the steel shells that have been sorted and arranged and have qualified barrel size into the track input end of the steel shell coating machine, the first horizontal conveyor is used to send the unsorted steel shells back to the discharge hopper, and the collecting hopper is used to send the steel shells that have been sorted and arranged but have fallen from the gap of the guide rods due to unqualified barrel size to the waste collection box.

3. The high-speed coating production line for alkaline battery steel shell according to claim 2, characterized in that: The steel shell coating machine includes a positioning and conveying turntable and a coating module. The positioning and conveying turntable is arranged at the transmission end of the guide rod of the steel shell conveying and sorting system. The axial direction of the positioning and conveying turntable is perpendicular to the guide rod. The positioning and conveying turntable rotates intermittently. The positioning and conveying turntable is provided with a plurality of positioning grooves distributed around a circular array. Magnetic adsorption blocks are installed in the positioning grooves. The positioning and conveying turntable is used to send the steel shell sent by the guide rod into the track of the coating module.

4. The high-speed coating production line for alkaline battery steel shells according to claim 3 is characterized by: The conductive film spraying system includes a chassis, a lifter is provided at the inner bottom of the chassis, a container is installed on the lifting plate of the lifter, a fixed plate is also provided on the inner side of the chassis, a stirring module is installed on the fixed plate, and after the lifter lifts the container, the stirring shaft of the stirring module extends into the inner side of the container, and a pump body is also provided in the chassis, and the pump body connects the container to the spray gun of the coating module through a pipeline.

5. The high-speed coating production line for alkaline battery steel shells according to claim 4, characterized in that: The drying device includes a second horizontal conveyor, the input end of the second horizontal conveyor is located below the guide rail outlet end of the coating module, the second horizontal conveyor has a synchronous belt that can move back and forth in a horizontal direction, the synchronous belt has a plurality of grooves evenly spaced along the length direction, the grooves make the axial direction of the steel shell be arranged in the left and right directions, a high-pressure hot air knife is installed on one side of the second horizontal conveyor through a support frame, the air outlet of the high-pressure hot air knife faces the synchronous belt, a high-pressure hot air blower is arranged below the second horizontal conveyor, the high-pressure hot air blower is connected to the high-pressure hot air knife, a blanking shield is provided at the transmission end of the second horizontal conveyor, and a material box is provided below the blanking shield.

6. The high-speed coating production line for alkaline battery steel shells according to claim 5, characterized in that: The detection device includes a support seat, a detection probe, an air blow pipe, and a waste box. A support seat is fixed on one side of the rear portion of the second horizontal conveyor. The support seat is located between the high-pressure hot air knife and the blanking shield. The detection probe and the air blow pipe are fixed on the support seat. The detection probe is located on the front side of the air blow pipe. The detection end of the detection probe and the air outlet end of the air blow pipe are both facing the synchronous belt of the second horizontal conveyor. The waste box is arranged below the support seat.

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