Grid cleaning and pretreatment system

Abstract

The utility model discloses a grid cleaning and pretreatment system. A cleaning area, a pretreatment area, an air drying area and a cleaning area are sequentially arranged in a box body in the running direction of a grid; the cleaning area comprises a cleaning tank, a first guide wheel is arranged on the lower middle portion of the cleaning tank, a second guide wheel is arranged at the upper end of the right side of the cleaning tank, and a third guide wheel and a fourth guide wheel are sequentially arranged on the right side of the second guide wheel. A liquid flow device is arranged at the upper end of the grid of the pretreatment area, a pretreatment tank is arranged under the liquid flow device, and the liquid flow device is communicated with a circulating pump at the bottom of the pretreatment tank through a liquid supply pipe; blowing air nozzles are arranged at the upper end and the lower end of the grid in the air drying area, and are connected with a hot air blower through an air supply pipeline; a rolling brush is arranged at each of the upper end and the lower end of the grid in the cleaning area, and a collecting box is arranged under the rolling brushes; and heaters are arranged in the cleaning tank and the pretreatment tank. Saponification liquid and greasy dirt adhered to the surfaces of the grid ribs can be removed, the surface of the grid can be properly oxidized, and the combination effect of the grid and lead paste in the follow-up process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid battery production and manufacturing, in particular to a grid cleaning and pretreatment system. Background Art

[0002] The current mainstream lead-acid battery grid production process includes: rolling lead strips and punching holes to make grids, and expanding lead strips and making grids. Whether it is a continuous punching grid or an expanded grid, saponification liquid and mold oil are inevitably introduced during the manufacturing process. In most cases, the grid is directly used for lead paste filling without cleaning or pretreatment. The saponification liquid and mold oil adsorbed on the grid surface will affect the effective contact between the grid and the lead paste, thereby further affecting the battery performance.

[0003] The current cleaning device usually includes a spray device and a drying device, and the spray device is in front and the drying device is in the back along the conveying direction of the lead strip. During cleaning, the solution containing the cleaning agent is first sprayed through the spray device to remove the oil stains on the surface of the lead strip; then, clean water is sprayed through the spray device to remove the particles and the solution containing the cleaning agent on the surface of the lead strip; finally, the surface of the lead strip is dried by a hot air drying device. However, since the lead strip is extremely soft, the spray pressure of the spray device is too high, which will form impact pits on the surface of the lead strip, or even directly penetrate the lead strip; therefore, the spray pressure is usually small, and a small spray pressure makes it difficult to flush the surface of the lead strip, resulting in poor cleaning effect. Summary of the invention

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art, thereby providing a grid cleaning and pretreatment system.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grid cleaning and pretreatment system, characterized in that it includes a box body;

[0006] The box body is provided with a grid inlet and a grid outlet on both sides;

[0007] The inside of the box is divided into a cleaning area, a pretreatment area, an air drying area and a cleaning area in the direction of the grid running;

[0008] The cleaning area includes a cleaning tank for containing cleaning liquid, a first guide wheel is provided at the lower middle part of the cleaning tank, a second guide wheel is provided at the upper right end of the cleaning tank, and a third guide wheel and a fourth guide wheel are provided in sequence on the right side of the second guide wheel;

[0009] The grid passes through the cleaning tank, bypasses the first guide wheel, and then passes through the second guide wheel, the third guide wheel, and the fourth guide wheel, and then is led out from the grid outlet;

[0010] A liquid flow device is provided at the upper end of the grid of the pretreatment zone, a pretreatment tank for containing pretreatment liquid is provided directly below the liquid flow device, the liquid flow device is connected to a circulation pump at the bottom of the pretreatment tank through a liquid supply pipe, and a liquid flow outlet is provided on one side of the liquid flow device facing the grid;

[0011] The upper and lower ends of the grid in the air drying zone are each provided with a purge nozzle, and the purge nozzle is connected to the hot air blower through an air supply duct;

[0012] A roller brush is provided at both the upper and lower ends of the grid in the cleaning area, and a collection box is provided directly below the roller brush;

[0013] Heaters are installed in the cleaning tank and the pretreatment tank.

[0014] The cleaning tank, pretreatment tank and collection box are all open grooves with open upper ends.

[0015] The cleaning tank and the pretreatment tank are both provided with a temperature sensor, a pH value sensor and a liquid level sensor.

[0016] It also includes a controller for receiving monitoring signals from a temperature sensor, a pH value sensor and a liquid level sensor and then controlling the actions of an alarm and a heater.

[0017] The straight-line distances from the center line of the first guide wheel to the left and right side walls of the cleaning tank are the same.

[0018] A front guide wheel is arranged at the grid inlet of the box body.

[0019] A plurality of openable operating doors are arranged side by side on one side of the box.

[0020] The outlet of the purge air nozzle faces the side of the grid inlet, and the angle between the purge direction of the purge air nozzle and the running direction of the grid is 30°-75°.

[0021] The liquid outflow outlet of the liquid flow device is a slit opening.

[0022] The utility model provides a grid cleaning and pretreatment system, which can remove saponification liquid and oil stains adhered to the surface of the grid ribs. At the same time, the grid cleaning and pretreatment system has the function of properly oxidizing the grid surface, improving the bonding effect between the grid and the lead paste in the subsequent process. Further, it is beneficial to improve the performance and consistency of the battery. On the other hand, the system is conducive to the full utilization of the hot air energy of the blower. The hot air flows to the cleaning tank and the pretreatment tank, which can reduce the energy consumption of the electric heaters of the cleaning tank and the pretreatment tank.

[0023] The utility model sets a pre-treatment liquid flow device after the cleaning area, and uses an oxidizing liquid to slightly oxidize the surface of the grid. The oxidant generally also has the function of removing foreign matter. After the grid is cleaned in the liquid washing area, the pre-treatment area has an oxidation function, which further enhances the effect of cleaning and removing foreign matter.

[0024] The utility model adopts a water curtain-like liquid flow mode to make the grid surface flow through the oxidizing liquid, so as to ensure that the grid surface is in contact with an appropriate amount of oxidant at all locations, but is not over-oxidized. The water curtain-like liquid flow mode is better than the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the appearance of the grid cleaning and pretreatment system box;

[0026] Figure 2 It is a schematic diagram of the structure inside the box of the grid cleaning and pretreatment system;

[0027] In the figure: 1-box; 2-cleaning tank; 3-first guide wheel; 4-second guide wheel; 5-pretreatment tank; 6-third guide wheel; 7-hot air blower; 8-fourth guide wheel; 9-roller brush; 10-collection box; 11, liquid level alarm 1; 12, temperature sensor 1; 13, pH sensor 1; 14-liquid level alarm 2; 15-temperature sensor 2; 16-pH sensor 2; 17-liquid flow device; 18-purge nozzle; 19-grid; 20-grid outlet; 21-operating door. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 and Figure 2, a grid inlet and a grid outlet 20 are respectively arranged on both sides of the box body 1, and a plurality of openable operating doors 21 are arranged side by side on one side of the box body 1, and a front guide wheel (not shown in the figure) is arranged at the grid inlet of the box body 1, and a cleaning area, a pretreatment area, an air drying area and a cleaning area are arranged in sequence along the running direction of the grid in the box body 1, and the cleaning area includes a cleaning tank 2 for holding a cleaning liquid, and a first guide wheel 3 is arranged in the middle and lower part of the cleaning tank 2, and the straight-line distances from the center line of the first guide wheel 3 to the left and right side walls of the cleaning tank are the same, and a second guide wheel 4, a third guide wheel 6 and a fourth guide wheel 8 are arranged in sequence on the right side of the first guide wheel 3, and the front guide wheel, the second guide wheel 4, the third guide wheel 6 and the fourth guide wheel 8 are at the same height, and both ends of the first guide wheel 3 are connected to the cleaning tank through bearings with seats, and both ends of the front guide wheel and the third guide wheel 6 are mounted on a frame (not shown in the figure) in the box body 1 through bearings with seats, and the first guide The wheel 3 and the third guide wheel 6 are driven wheels, the second guide wheel 4 and the fourth guide wheel 8 are driving wheels, one end of the second guide wheel 4 and the fourth guide wheel 8 are mounted on the frame in the box body 1 through a seat bearing, and the other end is connected to the motor output shaft fixed to the frame through a coupling, the grid 19 passes through the grid inlet, the front guide wheel, and goes downward around the first guide wheel 3, and then passes through the second guide wheel 4, the third guide wheel 6, and the fourth guide wheel 8, and then is led out from the grid outlet; a liquid flow device 17 is provided at the upper end of the grid in the pretreatment area, and a pretreatment tank 5 for holding pretreatment liquid is provided directly below the liquid flow device 17. The liquid flow device 17 is connected to the circulating pump at the bottom of the pretreatment tank 5 through a liquid supply pipe, and a liquid flow outlet is provided on the side of the liquid flow device 17 facing the grid, and the liquid flow outlet is a slit opening, so that the pretreatment liquid flowing out of the liquid flow device 17 is in the shape of a water curtain; heaters are installed in the cleaning tank 2 and the pretreatment tank 5. A purge air nozzle 18 is provided at both upper and lower ends of the grid in the air-drying zone. The purge air nozzle 18 is connected to the hot air blower 7 through an air supply duct. The outlet of the purge air nozzle 18 faces the side of the grid inlet, and the angle between the purge direction of the purge air nozzle 18 and the running direction of the grid is 30°-75°; a roller brush 9 is provided at both upper and lower ends of the grid in the cleaning zone, and a collection box 10 is provided directly below the roller brush 9.

[0030] Open all the operation doors on one side of the box 1, and add liquid reagents to the cleaning tank 2 and the pretreatment tank 5 according to the process requirements. Install a roller brush 9 of suitable size, the length of which is greater than the width of the grid 19.

[0031] The grid 19 from the screen punching equipment or the unwinding reel is introduced into the box body from the grid inlet on one side of the box body 1, and the grid 19 is manually pulled through the cleaning tank and around the first guide wheel 3 located inside the cleaning tank. The grid is then manually pulled through the second guide wheel 4, the third guide wheel 6, two purge air nozzles 18, the fourth guide wheel 8, and two roller brushes 9 in turn, and finally passes through the grid outlet 20 of the box body 1. The grid 19 after passing through the grid outlet 20 is connected to the reel.

[0032] Close all the operating doors 21 on one side of the box, start the circulation pump in the pretreatment tank 5, start the hot air blower 7, start the roller brush 9, start the second guide wheel 4 and the fourth guide wheel 8, start the grid 19, and the system starts to work normally.

[0033] The collection box is located vertically below the roller brush and is used to collect foreign matter dropped by the roller brush. The roller brush and the collection box can be provided with separate operating doors, or they can share an operating door with the blower. The corresponding operating door can be opened regularly (such as once a week) to clean the foreign matter in the collection box.

[0034] In another embodiment, see Figure 2 , a temperature sensor 12, a pH sensor 13 and a liquid level sensor 11 are provided in the cleaning tank 2, a temperature sensor 2 15, a pH sensor 2 16 and a liquid level sensor 2 14 are provided in the pretreatment tank 5, and a controller is also included for receiving monitoring signals of the temperature sensor, the pH sensor and the liquid level sensor to control the action of the alarm and the heater. When in use, the high value (upper limit) of the liquid level of the cleaning tank 2, the low value (lower limit) of the liquid level, the high value of the pH value, the low value of the pH value, the high value (upper limit) of the liquid temperature, and the low value (lower limit) of the liquid temperature are set in the controller. At the same time, the high value (upper limit) of the liquid level, the low value (lower limit) of the liquid level, the high value of the pH value, the low value of the pH value, the high value (upper limit) of the liquid temperature, and the low value (lower limit) of the liquid temperature are set in the pretreatment tank liquid collection pool. During use, the controller monitors the temperature, liquid level and pH value in the cleaning tank 2 and the pretreatment tank 5. When the liquid level and pH value are abnormal, the controller controls the alarm to alarm and remind the operator. When the temperature is abnormal, the controller controls the heater to act. It is a prior art to control the collection of sensor signals and control the alarm and the heater, and this embodiment will not elaborate on it.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grid cleaning and pretreatment system, characterized in that: It comprises a box body (1); The box body (1) is provided with a grid inlet and a grid outlet (20) on both sides; The box (1) is provided with a cleaning area, a pretreatment area, an air drying area and a cleaning area in sequence along the running direction of the grid; The cleaning area comprises a cleaning tank (2) for containing cleaning liquid, a first guide wheel (3) is provided at the middle and lower part of the cleaning tank (2), a second guide wheel (4) is provided at the upper right end of the cleaning tank (2), and a third guide wheel (6) and a fourth guide wheel (8) are provided in sequence on the right side of the second guide wheel (4); The grid (19) passes through the cleaning tank, bypasses the first guide wheel (3), and then passes through the second guide wheel (4), the third guide wheel (6), and the fourth guide wheel (8) and then is led out from the grid outlet; A liquid flow device (17) is provided at the upper end of the grid of the pretreatment zone, a pretreatment tank (5) for containing pretreatment liquid is provided directly below the liquid flow device (17), the liquid flow device (17) is connected to a circulation pump at the bottom of the pretreatment tank (5) via a liquid supply pipe, and a liquid flow outlet is provided on one side of the liquid flow device (17) facing the grid; A purge air nozzle (18) is provided at both the upper and lower ends of the grid in the air drying zone, and the purge air nozzle (18) is connected to the hot air blower (7) via an air supply duct; A roller brush (9) is provided at both the upper and lower ends of the grid of the cleaning area, and a collection box (10) is provided directly below the roller brush (9); The cleaning tank (2) and the pretreatment tank (5) are both equipped with heaters.

2. A grid cleaning and pretreatment system according to claim 1, characterized in that: The cleaning tank (2), pretreatment tank (5) and collection box (10) are all open grooves with open upper ends.

3. A grid cleaning and pretreatment system according to claim 1, characterized in that: The cleaning tank (2) and the pretreatment tank (5) are both provided with a temperature sensor, a pH value sensor and a liquid level sensor.

4. A grid cleaning and pretreatment system according to claim 3, characterized in that: It also includes a controller for receiving monitoring signals from a temperature sensor, a pH value sensor and a liquid level sensor and then controlling the actions of an alarm and a heater.

5. A grid cleaning and pretreatment system according to claim 1, characterized in that: The straight-line distances from the center line of the first guide wheel (3) to the left and right side walls of the cleaning tank are the same.

6. A grid cleaning and pretreatment system according to claim 1, characterized in that: A front guide wheel is provided at the grid inlet of the box body (1).

7. A grid cleaning and pretreatment system according to claim 1, characterized in that: A plurality of openable operating doors (21) are arranged side by side on one side of the box body (1).

8. A grid cleaning and pretreatment system according to claim 1, characterized in that: The outlet of the purge air nozzle (18) faces the side of the grid inlet, and the angle between the purge direction of the purge air nozzle (18) and the running direction of the grid is 30°-75°.

9. A grid cleaning and pretreatment system according to claim 1, characterized in that: The liquid outflow outlet of the liquid flow device (17) is a slit opening.

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