Powder scraping device for nickel-metal hydride battery production

Abstract

The utility model discloses a powder scraping device for nickel-metal hydride battery production, which comprises a base, the top of the base is fixedly connected with two support plates, an upper tool apron and a lower tool apron are jointly and fixedly connected between the two support plates, the upper tool apron is positioned above the lower tool apron, the outer walls of the upper tool apron and the lower tool apron are detachably provided with long scrapers, and the long scrapers are fixedly connected with the upper tool apron and the lower tool apron. The side, away from the long scraper, of the lower tool apron is slidably connected with a third tool apron; when the powder coating device is used, the two long scrapers can be utilized to scrape powder on the powder coatings on the two sides of the negative electrode base body in the process that the negative electrode base body penetrates through the space between the two long scrapers, so that the thickness of the powder coatings reaches the required size, and when the negative electrode base body penetrates through the short scrapers, the powder coating can be scraped by the two long scrapers. The short scraper can scrape off a redundant powder coating located at the bottom of the negative electrode base body, so that a blank area is formed at the bottom of the negative electrode base body, the width of the blank area scraped by the short scraper can be adjusted by adjusting the installation position of the third tool apron on one side of the lower tool apron, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a powder scraping device for nickel-hydrogen battery production. Background Art

[0002] At present, in the production process of the wet slurry drawing process of the negative electrode of the nickel-hydrogen battery, a mesh steel strip is used as the electrode. The mesh steel strip is placed on a discharge rack and enters the slurry hopper through a buffer rack. The mesh steel strip passes through the guide wheel and the scraping die of the slurry hopper to evenly coat a layer of slurry on both sides of the mesh steel strip. Then the mesh steel strip coated with slurry enters a drying device with multiple temperature zones to form a dry powder coating on both sides of the mesh steel strip. The patent with announcement number CN201689945U discloses a cylindrical nickel-hydrogen battery and its negative electrode. By setting a blank area without powder coating on one side of the negative electrode substrate (mesh steel strip), which can improve the utilization rate of active materials, save battery costs and internal space of the battery, reduce the internal pressure of the battery, reduce the contact internal resistance between the negative electrode and the steel shell, and improve the charge and discharge performance of the battery.

[0003] In order to achieve the blank area on one side of the negative electrode substrate in the above-mentioned solution, a powder scraping device is required to scrape off the excess powder coating on one side of the negative electrode substrate during the production process. The width of the blank area corresponding to nickel-hydrogen batteries of different sizes is different. However, the powder scraping devices currently used are mostly fixed structures and cannot adjust the width of the scraped blank area. There are great limitations in use and need to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a powder scraping device for nickel-hydrogen battery production to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A powder scraping device for nickel-hydrogen battery production includes a base, the top of the base is fixedly connected to two support plates, an upper knife seat and a lower knife seat are fixedly connected between the two support plates, the upper knife seat is located above the lower knife seat, the outer walls of the upper knife seat and the lower knife seat are detachably mounted with a long scraper, the side of the lower knife seat away from the long scraper is slidably connected to a third knife seat, the outer wall of the third knife seat is detachably mounted with a short scraper, the outer wall of one of the support plates is fixedly mounted with a first mounting plate, and the outer wall of the first mounting plate is rotatably mounted with a first guide roller, the outer wall of the other support plate is fixedly mounted with a second mounting plate, the second mounting plate is connected to a U-shaped plate through a linear drive mechanism, and the inner side of the U-shaped plate is rotatably mounted with a second guide roller.

[0007] As a further solution of the present invention: a guide rail is fixedly installed on the outer wall of the lower tool holder, a plurality of T-slots are opened on the outer wall of the guide rail, and T-slots are slidably installed with T-sliders, and the T-sliders are fixedly connected to the third tool holder, and nuts are fixedly connected to the outer walls of both ends of the third tool holder, and a top screw is passed through the nut, and the threaded end of the top screw is against the outer wall of the guide rail.

[0008] As a further solution of the present invention: the outer wall of the upper blade holder away from the long scraper is fixedly connected with a baffle via an L-shaped transition plate, and the baffle is located directly above the short scraper.

[0009] As a further solution of the present invention: the linear drive mechanism includes a hand-tightening bolt, the second mounting plate is connected to the hand-tightening bolt through a threaded hole, the threaded end of the hand-tightening bolt is rotatably connected to the U-shaped plate, and the outer wall of the second mounting plate is slidably penetrated by a plurality of guide rods, one end of each guide rod is fixedly connected to the U-shaped plate.

[0010] As a further solution of the present invention: the outer walls of the upper knife seat, the lower knife seat and the third knife seat are fixedly provided with positioning blocks, the outer walls of the long scraper and the short scraper are provided with positioning grooves adapted to the positioning blocks, the upper knife seat and the lower knife seat are fixedly connected to the corresponding long scraper by screws, and the third knife seat is fixedly connected to the short scraper by screws.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] When the utility model is in use, in the process of passing the negative electrode substrate between the two long scrapers, the two long scrapers can be used to scrape the powder coating on both sides of the negative electrode substrate so that the thickness of the powder coating reaches a required size. When the negative electrode substrate passes through the short scraper, the short scraper can scrape off the excess powder coating at the bottom of the negative electrode substrate, thereby forming a blank area at the bottom of the negative electrode substrate. By adjusting the installation position of the third knife seat on one side of the lower knife seat, the width of the blank area scraped by the short scraper can be adjusted, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a powder scraping device used in nickel-hydrogen battery production.

[0014] Figure 2 This is a schematic diagram of the top view of a powder scraping device used in nickel-hydrogen battery production.

[0015] Figure 3 This is a schematic diagram of the structure of the linear drive mechanism in a powder scraping device used in nickel-hydrogen battery production.

[0016] Figure 4This is a schematic diagram of the structure of the negative electrode of a nickel-metal hydride battery in a powder scraping device used in nickel-metal hydride battery production.

[0017] Among them, the base 1, the support plate 2, the upper tool holder 3, the lower tool holder 4, the long scraper 5, the positioning block 6, the positioning groove 7, the screw 8, the L-shaped transition plate 9, the baffle 10, the guide rail 11, the third tool holder 12, the T-shaped slider 13, the nut 14, the top screw 15, the short scraper 16, the first mounting plate 17, the first guide roller 18, the second mounting plate 19, the U-shaped plate 20, the second guide roller 21, the hand-tightening bolt 22, the guide rod 23, the negative electrode substrate 24, the powder coating 25, and the blank area 26. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 4 The utility model is a kind of scraping device for nickel-hydrogen battery production, comprising a base 1, the top of the base 1 is fixedly connected to two support plates 2, an upper knife seat 3 and a lower knife seat 4 are fixedly connected between the two support plates 2, the upper knife seat 3 is located above the lower knife seat 4, the outer walls of the upper knife seat 3 and the lower knife seat 4 are detachably mounted with a long scraper 5, the side of the lower knife seat 4 away from the long scraper 5 is slidably connected with a third knife seat 12, the outer wall of the third knife seat 12 is detachably mounted with a short scraper 16, a first mounting plate 17 is fixedly mounted on the outer wall of one of the support plates 2, and a first guide roller 18 is rotatably mounted on the outer wall of the first mounting plate 17, a second mounting plate 19 is fixedly mounted on the outer wall of the other support plate 2, the second mounting plate 19 is connected to a U-shaped plate 20 through a linear drive mechanism, and a second guide roller 21 is rotatably mounted on the inner side of the U-shaped plate 20.

[0020] By adopting the above-mentioned scheme, the utility model can, when in use, use the process of passing the negative electrode substrate 24 between the two long scrapers 5, use the two long scrapers 5 to scrape the powder coating 25 on both sides of the negative electrode substrate 24 so that the thickness of the powder coating 25 reaches the required size. When the negative electrode substrate 24 passes through the short scraper 16, the short scraper 16 can scrape off the excess powder coating 25 at the bottom of the negative electrode substrate 24, thereby forming a blank area 26 at the bottom of the negative electrode substrate 24. By adjusting the installation position of the third knife seat 12 on one side of the lower knife seat 4, the width of the blank area 26 scraped by the short scraper 16 can be adjusted. The operation is simple and convenient. Through the cooperation of the first guide roller 18 and the second guide roller 21, the negative electrode substrate 24 can be guided and positioned before passing through the two long scrapers 5, so as to improve the stability of the scraping.

[0021] Specific combination Figure 1 In one embodiment of the present invention, a guide rail 11 is fixedly installed on the outer wall of the lower tool holder 4, and a plurality of T-slots are opened on the outer wall of the guide rail 11, and T-slots are slidably installed in each of the T-slots. The T-slots 13 are fixedly connected to the third tool holder 12, and the outer walls of both ends of the third tool holder 12 are fixedly connected with nuts 14, and a top screw 15 is inserted into the nut 14, and the threaded end of the top screw 15 is against the outer wall of the guide rail 11.

[0022] Through the cooperation of the T-shaped slider 13 and the T-shaped slot, the position of the third tool holder 12 can be easily adjusted on one side of the lower tool holder 4. By tightening the top screw 15 so that the top screw 15 is tightly against the outer wall of the guide rail 11, the third tool holder 12 can be fixed on the guide rail 11, which is simple and convenient to operate.

[0023] Specific combination Figure 1 In one embodiment of the present utility model, the outer wall of the upper blade seat 3 away from the long scraper 5 is fixedly connected to a baffle 10 through an L-shaped transition plate 9, and the baffle 10 is located directly above the short scraper 16.

[0024] By setting the baffle 10 , when the short scraper 16 is working, the powder coating 25 on the top of the negative electrode substrate 24 will abut against the bottom of the baffle 10 to ensure that the short scraper 16 can stably contact the powder coating 25 on the bottom of the negative electrode substrate 24 .

[0025] Specific combination Figure 3 In one embodiment of the present invention, the linear drive mechanism includes a hand-tightening bolt 22, and the second mounting plate 19 is connected to the hand-tightening bolt 22 through a threaded hole. The threaded end of the hand-tightening bolt 22 is rotatably connected to the U-shaped plate 20, and the outer wall of the second mounting plate 19 is slidably penetrated by a plurality of guide rods 23, and one end of the guide rods 23 is fixedly connected to the U-shaped plate 20.

[0026] By turning the hand-tightening bolt 22, the U-shaped plate 20 can be driven to move by the sliding fit between the guide rod 23 and the second mounting plate 19 to adjust the distance between the first guide roller 18 and the second guide roller 21, thereby facilitating the guidance of the negative electrode substrates 24 of different widths.

[0027] Specific combination Figure 2 In one embodiment of the present utility model, the outer walls of the upper knife seat 3, the lower knife seat 4 and the third knife seat 12 are fixedly provided with positioning blocks 6, and the outer walls of the long scraper 5 and the short scraper 16 are provided with positioning grooves 7 adapted to the positioning blocks 6. The upper knife seat 3 and the lower knife seat 4 are fixedly connected to the corresponding long scraper 5 by screws 8, and the third knife seat 12 is fixedly connected to the short scraper 16 by screws 8.

[0028] The positioning block 6 and the positioning groove 7 facilitate positioning and installation of the long scraper 5 and the short scraper 16 .

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the scope of protection of the present invention.

Claims

1. A powder scraping device for nickel-metal hydride battery production, characterized in that: The utility model comprises a base (1), the top of the base (1) is fixedly connected to two support plates (2), an upper knife seat (3) and a lower knife seat (4) are fixedly connected between the two support plates (2), the upper knife seat (3) is located above the lower knife seat (4), the outer walls of the upper knife seat (3) and the lower knife seat (4) are both detachably mounted with a long scraper (5), the side of the lower knife seat (4) away from the long scraper (5) is slidably connected to a third knife seat (12), and the third knife seat (12) is fixedly connected to the upper knife seat (3) and the lower knife seat (4) ) is detachably mounted with a short scraper (16), a first mounting plate (17) is fixedly mounted on the outer wall of one of the support plates (2), and a first guide roller (18) is rotatably mounted on the outer wall of the first mounting plate (17), a second mounting plate (19) is fixedly mounted on the outer wall of the other support plate (2), the second mounting plate (19) is connected to a U-shaped plate (20) via a linear drive mechanism, and a second guide roller (21) is rotatably mounted on the inner side of the U-shaped plate (20).

2. A powder scraping device for nickel-hydrogen battery production according to claim 1, characterized in that: The outer wall of the lower knife seat (4) is fixedly installed with a guide rail (11), the outer wall of the guide rail (11) is provided with a plurality of T-slots, and T-slide blocks (13) are slidably installed in the T-slots, and the T-slide blocks (13) are fixedly connected to the third knife seat (12), and the outer walls of both ends of the third knife seat (12) are fixedly connected with nuts (14), and a top screw (15) is fitted in the nut (14), and the threaded end of the top screw (15) is against the outer wall of the guide rail (11).

3. The powder scraping device for nickel-metal hydride battery production according to claim 1, characterized in that: The outer wall of the upper blade seat (3) away from the long scraper (5) is fixedly connected to a baffle (10) via an L-shaped transition plate (9), and the baffle (10) is located directly above the short scraper (16).

4. The powder scraping device for nickel-hydrogen battery production according to claim 1, characterized in that: The linear drive mechanism includes a hand-tightening bolt (22), the second mounting plate (19) is connected to the hand-tightening bolt (22) through a threaded hole, the threaded end of the hand-tightening bolt (22) is rotatably connected to the U-shaped plate (20), and the outer wall of the second mounting plate (19) is slidably penetrated by a plurality of guide rods (23), one end of each of the guide rods (23) is fixedly connected to the U-shaped plate (20).

5. The powder scraping device for nickel-hydrogen battery production according to claim 1, characterized in that: The outer walls of the upper knife seat (3), the lower knife seat (4) and the third knife seat (12) are all fixedly provided with positioning blocks (6); the outer walls of the long scraper (5) and the short scraper (16) are both provided with positioning grooves (7) adapted to the positioning blocks (6); the upper knife seat (3) and the lower knife seat (4) are both fixedly connected to the corresponding long scraper (5) by screws (8); and the third knife seat (12) is fixedly connected to the short scraper (16) by screws (8).

Images