CN212722500U - Dust measuring assembly, pole piece dust content measuring device and pole piece production equipment - Google Patents
Dust measuring assembly, pole piece dust content measuring device and pole piece production equipment Download PDFInfo
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- CN212722500U CN212722500U CN202020358056.5U CN202020358056U CN212722500U CN 212722500 U CN212722500 U CN 212722500U CN 202020358056 U CN202020358056 U CN 202020358056U CN 212722500 U CN212722500 U CN 212722500U
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Abstract
The dust measuring assembly further provides a pole piece dust content measuring device and corresponding pole piece production equipment; according to the pole piece dust content measuring device, the dust processing assemblies are arranged on the two sides of the roller group, when a pole piece passes through, dust on the edge of the pole piece is blown up through the air knife assemblies, then the blown-up dust is sucked in by the two corresponding negative pressure dust hoods, and further real-time detection is carried out by the dust concentration measuring equipment; through the mode, the problem that dust is difficult to detect in the actual production process can be well solved.
Description
Technical Field
The application relates to the technical field of new energy batteries, in particular to a pole piece dust content measuring device, a dust measuring assembly and application thereof.
Background
A lot of dust can be generated in the production process of the lithium battery pole piece, particularly in the die cutting process and the slitting process, and after the dust enters the battery, risks of puncturing a diaphragm, short circuit of the battery and the like can be caused. Therefore, judging whether the dust on the surface of the pole piece is completely treated is a key factor of the quality of the battery.
In the existing production process, a collection box is usually arranged below a pole piece and used for collecting dust falling from the pole piece, after continuous production is carried out for a period of time (more than 8 hours), the dust in the collection box is weighed, and the dust content on the pole piece is estimated according to the weight. This approach has 2 drawbacks: the dust collection box comprises a dust collection box, a pole piece and a dust collection box, wherein the dust collection box is arranged on the pole piece, the pole piece is arranged on the dust collection box, the dust collection box is arranged on the dust collection box, the pole piece is arranged on the dust collection.
It has also been proposed by those skilled in the art to measure the size and amount of dust under a microscope. Firstly, there are many kinds of dusts on the pole piece, such as dusts generated by metal friction, dusts generated by material falling off from the surface of the pole piece, and other dusts, especially the most dust generated by material falling off from the surface of the pole piece, and the color of the dusts is very similar to the normal color of the surface of the pole piece under a microscope, and is difficult to distinguish; moreover, the diameter of the dust is usually about 10um, and the visual field range is only about 0.5mm after the microscope is magnified by 250 times. Thus, this method is theoretically possible, but has no utility.
Because the two existing schemes are difficult to apply in actual production, lithium battery manufacturers do not detect the dust content on the surface of the pole piece at present. However, it is very necessary to detect the dust content on the surface of the pole piece, and therefore, a solution for measuring the dust content of the pole piece is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a dust measuring component, pole piece dust content measuring device and pole piece production facility that corresponds, can solve effectively among the prior art the problem that can't measure the dust content in the pole piece production process.
In order to solve the technical problem, the present application provides a pole piece dust content measuring device, as one of them implementation mode, the device includes:
a roller mounting rod;
the roller group is arranged on the roller mounting rod;
at least one dust handling assembly disposed adjacent to the roller set;
the dust measuring assembly comprises at least one negative pressure dust hood facing the roller group and a wind knife assembly corresponding to the negative pressure dust hood, dust concentration measuring equipment is arranged on a negative pressure pipeline of the negative pressure dust hood, and one end of the dust concentration measuring equipment is inserted into the negative pressure pipeline.
As one embodiment, the device comprises two dust measuring assemblies which are respectively arranged at the adjacent positions of two sides of the roller group.
As one embodiment, the air knife assembly comprises a cover plate, an air knife mounted on the cover plate, wherein the air knife comprises an adjusting gasket, an air inlet pipe, an air outlet pipe and a pressure stabilizing cavity arranged between the air inlet pipe and the air outlet pipe; compressed air is fed into one side of the air inlet pipe, and high-speed air is discharged from the air outlet pipe.
In one embodiment, the set of rollers includes at least one roller.
As one embodiment, the device further comprises a mounting plate, and the roller mounting rod is fixedly arranged on the mounting plate.
For solving above-mentioned technical problem, this application still provides a dust measuring component, as one of them embodiment, this dust measuring component include towards the negative pressure suction hood that roller set both sides edge set up, and with the negative pressure suction hood corresponds the air knife subassembly that sets up, be provided with dust concentration measuring equipment on the negative pressure pipeline of negative pressure suction hood, dust concentration measuring equipment's one end inserts in the negative pressure pipeline.
As one embodiment, the air knife assembly comprises a cover plate, an air knife mounted on the cover plate, the air knife comprising an adjusting gasket, an air inlet pipe, an air outlet pipe, and a pressure stabilizing cavity arranged between the air inlet pipe and the air outlet pipe; compressed air is fed into one side of the air inlet pipe, and high-speed air is discharged from the air outlet pipe.
In order to solve the above technical problem, the present application further provides a pole piece production apparatus, as one of the embodiments, the apparatus includes:
a control device;
such as the aforesaid pole piece dust content measuring device, or such as the aforesaid dust measuring subassembly.
According to the pole piece dust content measuring device, the dust processing assemblies are arranged on the two sides of the roll passing assembly, when a pole piece passes through, dust on the edge of the pole piece is blown up through the air knife assemblies, then the blown-up dust is sucked in by the two corresponding negative pressure dust hoods, and further real-time detection is carried out by the dust concentration measuring equipment; through the mode, the problem that dust is difficult to detect in the actual production process can be well solved.
The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a pole piece dust content measuring device according to the present application.
FIG. 2 is a schematic structural diagram of the dust measuring assembly of FIG. 1.
FIG. 3 is another schematic structural diagram of the dust measuring assembly of FIG. 1 of the present application.
Fig. 4 is a schematic view of the wind direction and the dust flow direction in fig. 1 of the present application.
Detailed Description
To further clarify the technical measures and effects taken by the present application to achieve the intended purpose, the present application will be described in detail below with reference to the accompanying drawings and preferred embodiments.
While the present application has been described in terms of specific embodiments and examples for achieving the desired objects and objectives, it is to be understood that the invention is not limited to the disclosed embodiments, but is to be accorded the widest scope consistent with the principles and novel features as defined by the appended claims.
The first embodiment is as follows:
referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a pole piece dust content measuring device of the present application, and fig. 2 is a schematic structural diagram of a dust measuring assembly in fig. 1 of the present application. The embodiment of the device for measuring the dust content in the pole piece in the embodiment comprises:
the pole piece dust content measuring device in fig. 1 includes a roller mounting rod 11, the roller mounting rod 11 is fixedly disposed on a mounting plate 12, of course, the roller mounting rod 11 may also be fixedly disposed on other fixedly disposed components of the pole piece dust content measuring device, and this is not limited here; the roller group 13 is movably mounted on the roller mounting rod 11, the roller mounting rod 11 passes through the roller group 13, in the embodiment, the roller group 13 includes 2 rollers, in another embodiment, the roller group may also include a plurality of rollers or only include one roller, and this is not limited here; the roll stack 13 supports the rapid passage of the pole pieces 15 from the roll surface.
Two dust processing assemblies 14 are arranged at adjacent positions of the roller group 13, and in the embodiment, one dust processing assembly 14 is arranged at each of two adjacent positions of the roller group 13.
Referring to fig. 2, the dust processing assembly 14 includes a negative pressure dust hood 144 disposed facing the two side edges of the roller set 13, and a wind knife assembly 141 disposed corresponding to the negative pressure dust hood 144; the internal structure of the air knife assembly 141 comprises a cover plate 142, an air knife 143 mounted on the cover plate 142, the air knife 143 comprises an adjusting gasket 1431, an air inlet pipe 1433, an air outlet pipe 1434, and a pressure stabilizing cavity 1432 arranged between the air inlet pipe 1433 and the air outlet pipe 1434, the pressure stabilizing cavity 1432 is located on an air channel of the air knife and connected with the air inlet pipe 1433 and the air outlet pipe 1434; wherein, compressed air is fed into one side of the air inlet pipe 1433, and high-speed air is blown out from the air outlet pipe 1434 corresponding to the edge of the pole piece. A dust concentration measuring device 145 is arranged on a negative pressure pipeline 146 of the negative pressure dust hood 144, one end of the dust concentration measuring device 145 is inserted into the negative pressure pipeline 146, and the other end of the negative pressure dust hood 144 is connected with a negative pressure dust collector.
Referring to fig. 3, fig. 3 is another schematic structural diagram of the dust measuring assembly of fig. 1 of the present application. In another embodiment, the pole piece dust content measuring device comprises a dust measuring assembly 14, and the structure of the dust measuring assembly 14 comprises a wind knife assembly 141 and two corresponding negative pressure dust hoods 144; the air knife assembly 141 is provided with two air outlets respectively corresponding to the edges of the pole pieces, the two air outlets blow out high-speed air to the edges of the two sides of the pole pieces, dust on the edges of the pole pieces is blown out and sucked by the two corresponding negative pressure dust hoods 144, and further real-time detection is performed by dust concentration measuring equipment.
When the dust content measuring device works, compressed air of about 0.5Mpa passes through the air knife and then is blown to the edge of the pole piece, wherein the edge of the pole piece is a region where dust is mainly concentrated, the air speed of air outlet of the air knife air outlet pipe is as high as 50 m/s, the dust in the region can be blown up very efficiently, and then the blown-up dust enters the negative pressure dust collector under the negative pressure suction force of the negative pressure dust hood connected with the negative pressure dust collector. Please refer to the arrow direction in fig. 4 for the specific blowing direction of the air duct. The dust concentration measuring equipment is arranged on a negative pressure pipeline behind the negative pressure dust hood and is used for detecting the content and the size of dust in real time.
In the embodiment, the structure of the pole piece dust content measuring device is provided, the dust processing assemblies are arranged on two sides of the roll group, when a pole piece passes through, dust on the edge of the pole piece is blown up through the air knife assemblies, then the blown-up dust is sucked in by the two corresponding negative pressure dust hoods, and further the dust concentration measuring equipment detects the dust in real time; the problem that dust is difficult to detect in the actual production process is well solved.
Example two:
referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of a dust measuring assembly, and fig. 3 is a schematic structural diagram of another dust measuring assembly.
In fig. 2, the dust measuring assembly 14 includes a negative pressure dust hood 144 disposed facing both side edges of the roller group 13, and a wind knife assembly 141 disposed corresponding to the negative pressure dust hood 144; the internal structure of the air knife assembly 141 comprises a cover plate 142, an air knife 143 mounted on the cover plate 142, the air knife 143 comprises an adjusting gasket 1431, an air inlet pipe 1433, an air outlet pipe 1434, and a pressure stabilizing cavity 1432 arranged between the air inlet pipe 1433 and the air outlet pipe 1434, the pressure stabilizing cavity 1432 is located on an air channel of the air knife and connected with the air inlet pipe 1433 and the air outlet pipe 1434; wherein, compressed air is fed into one side of the air inlet pipe 1433, and high-speed air is blown out from the air outlet pipe 1434 corresponding to the edge of the pole piece. A dust concentration measuring device 145 is arranged on a negative pressure pipeline 146 of the negative pressure dust hood 144, one end of the dust concentration measuring device 145 is inserted into the negative pressure pipeline 146, and the other end of the negative pressure dust hood 144 is connected with a negative pressure dust collector.
Referring to fig. 3, in another embodiment, the dust measuring assembly 14 includes a wind knife assembly 141 and two corresponding vacuum suction hoods 144; the air knife assembly 141 is provided with two air outlets respectively corresponding to the edges of the pole pieces, the two air outlets blow out high-speed air to the edges of the two sides of the pole pieces, dust on the edges of the pole pieces is blown out and sucked by the two corresponding negative pressure dust hoods 144, and further real-time detection is performed by dust concentration measuring equipment.
In the production process of the dust measurement assembly 14, compressed air of about 0.5Mpa passes through the air knife and then is blown to the edge of the pole piece, wherein the edge of the pole piece is a region where dust is mainly concentrated, the air speed of air discharged from the air outlet pipe of the air knife is as high as 50 m/s, the dust in the region can be blown up very efficiently, and then the blown-up dust enters the negative pressure dust collector under the negative pressure suction force of the negative pressure dust collection cover connected with the negative pressure dust collector. Please refer to the arrow direction in fig. 4 for the specific blowing direction of the air duct. The dust concentration measuring equipment is arranged on a negative pressure pipeline behind the negative pressure dust hood, and the content and the size of dust are detected in real time.
The structure of the dust measuring assembly is provided in the embodiment, so that dust on the edge of a pole piece can be blown up through the air knife assembly in the pole piece production process, then the blown-up dust is sucked in by the two corresponding negative pressure dust hoods, and further the dust concentration measuring equipment detects the dust in real time; the problem that dust is difficult to detect in the actual production process is well solved.
Example three:
the pole piece production equipment comprises control equipment, and the control equipment is used for controlling the specific operation of the pole piece production equipment according to the specific condition of the pole piece production equipment in the production process. Specifically, the method comprises the following steps:
the pole piece production equipment further comprises a pole piece dust content measuring device as described in embodiment one or comprises a dust measuring assembly as described in embodiment two.
In the pole piece production equipment in the embodiment, dust on the edge of a pole piece can be blown up through the air knife assembly in the pole piece production process, then the blown-up dust is sucked in by the two corresponding negative pressure dust hoods, and further the dust concentration measurement equipment detects the dust in real time; the problem that dust is difficult to detect in the actual production process is well solved; and through the real-time detection of the dust content, the automatic alarm processing or the shutdown processing can be timely carried out when the dust content exceeds the standard, so that the product quality can be greatly improved.
Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being included within the following description of the preferred embodiment.
Claims (8)
1. The utility model provides a pole piece dust content measuring device which characterized in that, the device includes:
a roller mounting rod;
the roller group is arranged on the roller mounting rod;
at least one dust measurement assembly disposed adjacent to the roller set;
the dust measuring assembly comprises at least one negative pressure dust hood facing the roller group and a wind knife assembly corresponding to the negative pressure dust hood, dust concentration measuring equipment is arranged on a negative pressure pipeline of the negative pressure dust hood, and one end of the dust concentration measuring equipment is inserted into the negative pressure pipeline.
2. The apparatus of claim 1, wherein the apparatus includes two dust measuring assemblies disposed adjacent to each side of the roller set.
3. The apparatus of claim 1 or claim 2, wherein the air knife assembly comprises a cover plate, an air knife mounted on the cover plate, the air knife comprising a spacer, an air inlet duct, an air outlet duct, and a plenum disposed between the air inlet duct and the air outlet duct; compressed air is fed into one side of the air inlet pipe, and high-speed air is discharged from the air outlet pipe.
4. The apparatus of claim 1, wherein the set of pass rollers comprises at least one pass roller.
5. The apparatus of claim 1, further comprising a mounting plate, wherein the roller mounting bar is fixedly disposed on the mounting plate.
6. A dust measuring component, the subassembly sets up in the pole piece dust content measuring device of preceding claim 1, the subassembly is used for measuring pole piece dust content, its characterized in that, the dust measuring component include towards the negative pressure suction hood that roller set both sides edge set up among the pole piece dust content measuring device, and with the air knife subassembly that the negative pressure suction hood corresponds the setting, be provided with dust concentration measuring equipment on the negative pressure pipeline of negative pressure suction hood, dust concentration measuring equipment's one end inserts in the negative pressure pipeline.
7. The dust measuring assembly of claim 6, wherein the air knife assembly comprises a cover plate, an air knife mounted on the cover plate, the air knife comprising an adjusting gasket, an air inlet pipe, an air outlet pipe, and a pressure stabilizing cavity disposed between the air inlet pipe and the air outlet pipe; compressed air is fed into one side of the air inlet pipe, and high-speed air is discharged from the air outlet pipe.
8. An apparatus for producing a pole piece, the apparatus comprising:
a control device;
a pole piece dust content measuring device as claimed in claims 1 to 5, or a dust measuring assembly as claimed in claims 6 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020358056.5U CN212722500U (en) | 2020-03-20 | 2020-03-20 | Dust measuring assembly, pole piece dust content measuring device and pole piece production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020358056.5U CN212722500U (en) | 2020-03-20 | 2020-03-20 | Dust measuring assembly, pole piece dust content measuring device and pole piece production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212722500U true CN212722500U (en) | 2021-03-16 |
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ID=74904743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020358056.5U Active CN212722500U (en) | 2020-03-20 | 2020-03-20 | Dust measuring assembly, pole piece dust content measuring device and pole piece production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212722500U (en) |
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2020
- 2020-03-20 CN CN202020358056.5U patent/CN212722500U/en active Active
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| CP01 | Change in the name or title of a patent holder |
Address after: No.039, Jiyan Road, Laocheng street, Feicheng City, Tai'an City, Shandong Province Patentee after: Shandong Hongyun Technology Co.,Ltd. Address before: No.039, Jiyan Road, Laocheng street, Feicheng City, Tai'an City, Shandong Province Patentee before: Shandong Hongyun Nano Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |