Scraper structure and stirrer

Abstract

The scraper structure comprises a scraper body and a driving part, the scraper body is connected with the driving part through a scraper shaft, the driving part is used for driving the scraper body to rotate, a scraper plate is arranged on the scraper body, the scraper plate is used for scraping slurry on the inner side wall of a stirring inner cylinder, and the scraper shaft is connected with the driving part. A trailing is arranged at the bottom of the scraper main body and is used for scraping slurry on the inner bottom wall of the stirring inner cylinder; the stirrer comprises a stirrer main body structure, a stirring inner barrel, a driving device and the scraper structure in the technical scheme, the scraper plate is propped against the inner side wall of the stirring inner barrel, and the trailing is propped against the inner bottom wall of the stirring inner barrel. According to the utility model, the trailing is additionally arranged at the bottom of the scraper, and the angle of the trailing can be adjusted, so that slurry at the bottom of the stirring inner cylinder is scraped and guided into the discharge hole, and the cleaning effect of the slurry in the stirring inner cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a scraper structure and a mixer. Background Art

[0002] In the existing lithium battery manufacturing process, most are dry mixing processes and wet mixing processes. It is necessary to add components such as active substances, conductive agents, dispersants, binders, and additives into the mixing main machine in a certain proportion and sequence to form a stable fixed suspension.

[0003] After the battery slurry mixing is completed, discharging is required. After discharging, the slurry will adhere to the inner wall of the mixing inner cylinder of the mixer. Therefore, a scraper is needed for scraping and cleaning. In the discharging method using the discharging hole at the center of the bottom of the mixing content, there is an urgent need for a scraper structure that can scrape the slurry on the inner side wall of the mixing inner cylinder and at the same time scrape the slurry at the bottom of the mixing inner cylinder and guide it into the discharging hole. Summary of the Utility Model

[0004] In order to achieve the purpose of the background art, the utility model provides a scraper structure and a mixer. A trailing tail is added to the bottom of the scraper, and the angle of the trailing tail can be adjusted, so as to scrape the slurry at the bottom of the mixing inner cylinder and guide it into the discharging hole, improving the cleaning effect of the slurry in the mixing inner cylinder.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A scraper structure includes a scraper main body and a driving member. The scraper main body is connected to the driving member through a scraper shaft. The driving member is used to drive the scraper main body to rotate. A scraper plate is arranged on the scraper main body. The scraper plate is used to scrape the slurry on the inner side wall of the mixing inner cylinder. A trailing tail is arranged at the bottom of the scraper main body. The trailing tail is used to scrape the slurry on the inner bottom wall of the mixing inner cylinder.

[0007] As a further improvement of the above technical solution, the trailing tail is arranged in an involute structure arc shape, and the upper end surface of the trailing tail is in the shape of an inclined cutting plow blade.

[0008] As a further improvement of the above technical solution, one side of the scraper main body is set as an inclined angle, and the scraper plate is arranged at the tip of the inclined angle.

[0009] As a further improvement of the above technical solution, the scraper plate is a Teflon scraper plate.

[0010] As a further improvement of the above technical solution, the driving member includes a servo motor, and the servo motor is connected to the scraper shaft through a reducer.

[0011] As a further improvement of the above technical solution, the servo motor is installed on a motor fixing seat, a bearing seat is arranged in the motor fixing seat, the scraper shaft is installed on the bearing seat, a photoelectric switch is arranged on the bearing seat, and the photoelectric switch is used to control the start and stop of the servo motor.

[0012] As a further improvement of the above technical solution, a temperature measuring probe is arranged on the scraper body.

[0013] As a further improvement of the above technical solution, a plurality of temperature measuring probes are provided, and the plurality of temperature measuring probes are arranged at intervals along the axis direction of the scraper body.

[0014] As a further improvement of the above technical solution, a plurality of stepped portions are arranged on the scraper main body, and a temperature measuring probe is arranged at the bottom of the scraper main body and the bottoms of the plurality of stepped portions.

[0015] The present utility model further provides the following technical solution. A mixer includes a mixer main body structure, a mixing inner barrel, a driving device, and the scraper structure in the above technical solution. The driving member of the scraper structure is fixedly installed on the mixer main body structure, and the scraper main body is located in the mixing inner barrel. The scraper is in contact with the inner side wall of the mixing inner barrel, and the trailing end is in contact with the inner bottom wall of the mixing inner barrel.

[0016] The beneficial effects of the present utility model are as follows: After the slurry in the mixing inner barrel is discharged, the scraper of the scraper structure is in contact with the inner side wall of the mixing inner barrel, so as to scrape the slurry on the inner side wall of the mixing inner barrel. The trailing end of the scraper structure is in contact with the inner bottom wall of the mixing inner barrel, so as to scrape the slurry on the inner bottom wall of the mixing inner barrel. And the driving member drives the scraper shaft to rotate, so as to adjust the angle between the scraper and the inner side wall of the mixing inner barrel and the position of the trailing end relative to the inner bottom wall of the mixing inner barrel, so as to improve the scraping effect of the slurry and guide the slurry into the discharge hole, thereby improving the cleaning effect of the slurry in the mixing inner barrel. Description of the Drawings

[0017] The present utility model will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is the assembly schematic diagram of the mixer in the embodiment of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the scraper structure in the embodiment of the present utility model Figure 1 ;

[0020] Figure 3 is the structural schematic diagram of the scraper structure in the embodiment of the present utility model Figure 2 ;

[0021] Figure 4It is the structural decomposition diagram of the blade structure in the embodiment of the present utility model;

[0022] Figure 5 It is the partial schematic diagram of the blade structure in the embodiment of the present utility model;

[0023] Figure 6 It is the sectional view of the blade structure in the embodiment of the present utility model;

[0024] Figure 7 is Figure 6 the enlarged view of A in

[0025] Reference numerals: 10, mixer main body structure; 20, inner mixing barrel; 30, blade structure; 31, blade main body; 311, blade shaft connection seat; 312, scraper installation groove; 32, driving member; 321, servo motor; 322, reducer; 323, motor fixing seat; 33, scraper; 34, trailing end; 341, trailing end fixing plate; 35, bearing seat; 351, bearing seat mounting plate; 341, bearing; 353, blade shaft bushing; 354, blade shaft; 36, stepped portion; 37, probe mounting plate; 38, temperature measuring probe; 39, temperature measuring sensor wire. Specific embodiments

[0026] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. For example, fixed connection / installation can be connected by accessories such as screws and bolts, or directly connected by welding, bonding and other methods. Each technical feature in the creation of the present utility model can be combined interactively without conflicting with each other.

[0027] Refer to Figure 1, an embodiment of the present utility model discloses a blender, which includes a blender main body structure 10, a stirring inner barrel 20, a driving device, and a scraper structure 30. The driving device is used to drive the stirring inner barrel to rotate. The driving member 32 of the scraper structure 30 is fixedly installed on the blender main body structure 10, and the scraper main body 31 of the scraper structure 30 is located in the stirring inner barrel. The scraper 33 of the scraper structure 30 abuts against the inner side wall of the stirring inner barrel, and the trailing end 34 of the scraper structure 30 abuts against the inner bottom wall of the stirring inner barrel. In this embodiment, after the slurry in the stirring inner barrel is discharged, the scraper 33 of the scraper structure 30 abuts against the inner side wall of the stirring inner barrel, so as to scrape the slurry on the inner side wall of the stirring inner barrel. The trailing end 34 of the scraper structure 30 abuts against the inner bottom wall of the stirring inner barrel, so as to scrape the slurry on the inner bottom wall of the stirring inner barrel. And the driving member 32 drives the scraper main body 31 to rotate, so as to adjust the angle between the scraper 33 and the inner side wall of the stirring inner barrel and the position of the trailing end 34 relative to the inner bottom wall of the stirring inner barrel, so as to improve the scraping effect of the slurry and guide the slurry into the discharge hole, thereby improving the cleaning effect of the slurry in the stirring inner barrel.

[0028] An embodiment of the present utility model specifically describes the scraper structure 30. Refer to Figures 2 - 7 , the scraper structure 30 includes a scraper main body 31 and a driving member 32. The scraper main body 31 is connected to the driving member 32 through a scraper shaft 354. A scraper shaft connection seat 311 is arranged on the scraper main body 31. The scraper shaft 354 is connected to the scraper shaft connection seat 311 by bolts. The driving member 32 is used to drive the scraper main body 31 to rotate. A scraper 33 is arranged on the scraper main body 31. The scraper 33 abuts against the inner side wall of the stirring inner barrel to scrape the slurry on the inner side wall of the stirring inner barrel. A trailing end 34 is arranged at the bottom of the scraper main body 31. The trailing end 34 abuts against the inner bottom wall of the stirring inner barrel, so as to scrape the slurry on the inner bottom wall of the stirring inner barrel.

[0029] In this embodiment, refer to Figures 2 - 4 , the trailing end 34 is fixedly connected to the scraper main body 31 through a trailing end fixing plate 341. Specifically, the trailing end fixing plate 341 is connected to the scraper main body 31 by screws, which improves the firmness of the trailing end 34 after fixation and also facilitates the installation and disassembly of the trailing end 34.

[0030] Furthermore, the trailing end 34 is arranged in an involute structure arc shape, and the upper end surface of the trailing end 34 is in the shape of an inclined cutting plow. During the stirring process of the battery slurry, the trailing end 34 has the functions of plowing and leveling, which can improve the stirring effect of the battery slurry.

[0031] In this embodiment, refer to Figures 2 - 4, one side of the scraper body 31 is set as an inclined angle, a scraper mounting groove 312 is arranged at the inclined angle, and the opening of the scraper mounting groove 312 is located at the tip of the inclined angle. The scraper 33 is fixedly connected in the scraper mounting groove 312 by bolts, which facilitates the installation and disassembly of the scraper 33. In addition, the scraper 33 is made of Teflon material, which is not easily damaged and improves the service life of the scraper 33.

[0032] In this embodiment, referring to Figures 2 - 6 , the driving member 32 includes a servo motor 321. The servo motor 321 is connected to the scraper shaft 354 through a speed reducer 322. Specifically, the servo motor 321 is installed on a motor fixing seat 323, a bearing seat 35 is arranged in the motor fixing seat 323, the scraper shaft 354 is installed on the bearing seat 35, and a photoelectric switch is arranged on the bearing seat 35. (Normally, the output signal of the photoelectric switch is connected to the input port of a controller (such as a PLC, a motion controller, etc.). After receiving the signal of the photoelectric switch, the controller generates corresponding control instructions through internal logical processing and operations and sends them to the driver of the servo motor 321. In this embodiment, the photoelectric switch detects the rotation angle of the scraper body 31, and the controller can command the servo motor 321 to start or stop, so as to adjust the angle of the scraper body 31, that is, to adjust the positions of the scraper 33 and the trailing edge 34).

[0033] Furthermore, the bearing seat 35 includes a bearing seat mounting plate 351 and a bearing 352 installed inside the bearing seat mounting plate 351. The scraper shaft 354 is installed inside the bearing 352 through a scraper shaft sleeve 353, so as to realize the rotation of the scraper shaft 354 relative to the bearing seat mounting plate 351. The bearing seat mounting plate 351 is fixedly connected to the motor fixing seat 323 and fixedly installed on the cover plate of the mixer main body structure 10, thereby realizing the installation of the scraper structure 30.

[0034] Furthermore, the photoelectric switch includes a plurality of photoelectric sensor bodies arranged on the outer ring of the bearing 352 and an induction piece arranged on the scraper shaft sleeve 353. When the photoelectric sensor bodies at different positions detect the induction piece, it means that the scraper body 31 is at different angles. By controlling the start and stop of the servo motor 321, the scraper body 31 can be accurately stopped at different angular positions, realizing the accurate adjustment of the angular positions of the scraper 33 and the trailing edge 34.

[0035] In this embodiment, referring to Figures 2 - 6, a plurality of temperature measuring probes 38 are arranged on the blade body. The plurality of temperature measuring probes 38 are arranged at intervals along the axial direction of the blade body. Specifically, two stepped portions 36 are arranged on the blade body 31, and one of the temperature measuring probes 38 is arranged at the bottom of the blade body 31 and the bottoms of the plurality of stepped portions 36, so that the three temperature measuring probes 38 are respectively arranged at the upper, middle and lower positions of the blade body 31, and can display the temperature rise of the slurry in the stirring inner cylinder in real time, thereby adjusting the processing technology and improving the efficiency.

[0036] Further, referring to Figure 7 , a wire threading channel is arranged in the blade body 31. The temperature measuring sensor wire 39 of the temperature measuring probe 38 is installed in the wire threading channel. The wire threading channel is connected with a probe installation groove at the bottom of the blade body 31 and the bottoms of the plurality of stepped portions 36. The temperature measuring probe 38 is fixed in the probe installation groove through a probe installation plate 37, so as to prevent the temperature measuring probe 38 from being exposed outside the blade body 31 and play a role in protecting the temperature measuring probe 38.

[0037] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A scraper structure, characterized in that: It includes a scraper body and a driving member, the scraper body is connected to the driving member through a scraper shaft, the driving member is used to drive the scraper body to rotate, a scraper is arranged on the scraper body, the scraper is used to scrape the slurry on the inner wall of the stirring inner cylinder, and a tail is arranged at the bottom of the scraper body, the tail is used to scrape the slurry on the inner bottom wall of the stirring inner cylinder.

2. A scraper structure according to claim 1, characterized in that: The tail is arranged in an involute arc shape, and the upper end surface of the tail is in an oblique plowshare shape.

3. A scraper structure according to claim 2, characterized in that: One side of the scraper body is arranged at an oblique angle, and the scraper is arranged at the tip of the oblique angle.

4. A scraper structure according to claim 3, characterized in that: The scraper is a Teflon scraper.

5. A scraper structure according to claim 4, characterized in that: The driving member comprises a servo motor, and the servo motor is connected to the scraper shaft via a reducer.

6. A scraper structure according to claim 5, characterized in that: The servo motor is mounted on a motor fixing seat, a bearing seat is arranged in the motor fixing seat, the scraper shaft is mounted on the bearing seat, a photoelectric switch is arranged on the bearing seat, and the photoelectric switch is used to control the start and stop of the servo motor.

7. A scraper structure according to claim 6, characterized in that: A temperature measuring probe is arranged on the scraper body.

8. A scraper structure according to claim 7, characterized in that: There are multiple temperature measuring probes, and the multiple temperature measuring probes are arranged at intervals along the axial direction of the scraper body.

9. A scraper structure according to claim 8, characterized in that: The scraper body is provided with a plurality of stepped portions, and the bottom of the scraper body and the bottom of the plurality of stepped portions are both provided with a temperature measuring probe.

10. A mixer, comprising a mixer main structure, a mixing inner barrel and a driving device for driving the mixing inner barrel to rotate, characterized in that: It also includes the scraper structure described in any one of claims 1-9, wherein the driving member of the scraper structure is fixedly mounted on the main structure of the mixer, and the scraper body is located in the mixing inner cylinder, the scraper abuts against the inner side wall of the mixing inner cylinder, and the tail abuts against the inner bottom wall of the mixing inner cylinder.

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