CN219357416U - Static-removing dust-removing device and roller press - Google Patents

Abstract

The utility model belongs to the technical field of battery production, and discloses an electrostatic removing and dedusting device and a roller press, wherein the electrostatic removing and dedusting device comprises: the dust removing assembly comprises an air suction head and a power supply unit communicated with the air suction head; the static eliminating assembly is arranged on one side of the suction head, and is positioned at the upstream of the dust removing assembly along the conveying direction of the battery pole piece, so that the battery pole piece is subjected to static elimination by the static eliminating assembly and then is subjected to dust removal by the dust removing assembly. The utility model can effectively clean the foreign matters such as metal scraps, dust and the like on the battery pole piece, improves the dust removal effect of the battery pole piece, ensures the subsequent rolling quality of the battery pole piece, and avoids the damage of the roller press.

Description

Static-removing dust-removing device and roller press

Technical Field

The utility model relates to the technical field of battery production, in particular to an electrostatic and dust removal device and a roller press.

Background

The lithium ion battery has the advantages of high voltage, high specific energy, multiple recycling times, long storage time and the like, and is widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like, so that the performance and cost requirements of the lithium ion battery are higher and higher.

Currently, in the lithium battery industry, rolling an electrode plate is an important process in the lithium battery manufacturing process. In the process of manufacturing the lithium battery, particularly in the rolling process of the electrode plate, the surface of the electrode plate before rolling is affected by the previous process or turnover transportation, and foreign matters such as metal scraps, dust and the like can be contained in the electrode plate, so that the rolling quality of the electrode plate is reduced, the foreign matters stored on the surface of the electrode plate after rolling are scrapped, and the compression roller of the roller press is damaged, so that equipment is damaged.

More importantly, in the rolling process of the positive plate, the surface of the positive plate before rolling is provided with more aluminum scraps, which can generate static electricity with a black material area of the positive plate and are adsorbed on the surface of the black material area of the positive plate, so that the problem of invalid dust removal of manpower or equipment is caused. And aluminum scraps belong to nonferrous metals, and an iron remover arranged on the roll squeezer cannot clean the aluminum scraps.

In addition, because the aluminum scraps are extremely small, the surface of the positive plate is not easy to be found by naked eyes after a small amount of aluminum scraps are carried on the surface of the positive plate. If the surface of the rolled positive plate is provided with aluminum scraps, the aluminum scraps are mixed into the winding core through winding, and after hot pressing, the aluminum scraps pierce through the diaphragm, so that the winding core is short-circuited, and the qualification rate is affected. Even if the diaphragm is not pierced, the battery flows into the post-process to be formed and separated, the self-discharge performance of the battery core can be greatly influenced, and even after high-rate charge and discharge or multiple cycles, the battery is electrified and shorted, so that larger potential safety hazards are generated, and the battery belongs to class A bad abnormality.

Therefore, there is an urgent need for a device capable of effectively removing static electricity and dust from a pole piece before rolling the pole piece.

Disclosure of Invention

The utility model aims to provide an electrostatic removing and dedusting device and a roller press, which can firstly remove static electricity to a conveyed battery pole piece so as to reduce adsorption force, and then remove foreign matters such as metal scraps, dust and the like on the battery pole piece, thereby improving the dedusting effect.

To achieve the purpose, the utility model adopts the following technical scheme:

an electrostatic precipitator device, comprising:

the dust removing assembly comprises an air suction head and a power supply unit communicated with the air suction head;

the static eliminating assembly is arranged on one side of the suction head, and is positioned at the upstream of the dust removing assembly along the conveying direction of the battery pole piece, so that the battery pole piece is subjected to static elimination by the static eliminating assembly and then is subjected to dust removal by the dust removing assembly.

Preferably, the static electricity removing assembly comprises a plurality of static electricity removing units, wherein the static electricity removing units are configured to generate positive and negative ions, and the positive and negative ions generated by the static electricity removing units cover the surface of the battery pole piece.

Preferably, the static electricity removing unit includes an ion generating electrode for ionizing air under high pressure to generate positive and negative ions;

the ion generating electrode is arranged close to the battery pole piece, or the installation position of the ion generating electrode is arranged so that positive and negative ions generated by ionized air can be conveyed to the battery pole piece by airflow.

Preferably, the ion generating electrode is a probe structure or a strip structure, and when the ion generating electrode is a strip structure, the extending direction of the ion generating electrode is intersected with the conveying direction of the battery pole piece;

and/or the static electricity removing unit further comprises an air flow generator, wherein the air flow generator is arranged on one side of the ion generating electrode, which is away from the battery pole piece, and is used for generating air flow so as to convey positive and negative ions generated by ionized air of the ion generating electrode to the battery pole piece.

Preferably, the static electricity removing unit further includes a mounting member for mounting the ion generating electrode and the air flow generator;

and/or the mounting piece is provided with an air duct or a cavity for directional circulation of the air flow generated by the air flow generator.

Preferably, the mounting member has a cylindrical structure, and at least two ends thereof have cavities for mounting the ion generating electrode and the air flow generator, the ion generating electrode is mounted at one end of the mounting member near the battery pole piece, and the air flow generator is mounted at the other end of the mounting member. Preferably, the static electricity removing unit further comprises an ion generating electrode fixing member, the ion generating electrode fixing member comprises a pin shaft portion and an insulation adjusting portion, and the pin shaft portion is connected with one end of the insulation adjusting portion;

the pin shaft part is penetrated from the through hole of the ion generating electrode and is inserted or screwed on at least one side inner wall of the mounting piece;

the insulation adjusting part is positioned at the outer side of the mounting part and is used for rotating the ion generating electrode fixing part so as to fix or detach the ion generating electrode.

Preferably, the ion generating electrode and the gas flow generator are arranged to be turned on and off synchronously or asynchronously;

and/or the dust removing assembly and the static removing assembly are arranged to be synchronously or asynchronously opened and closed.

Preferably, the static eliminating assembly further comprises an insulating protective shell, the insulating protective shell is installed on the air suction head, and the static eliminating unit is located in the insulating protective shell.

The utility model also provides a roller press, which comprises the static electricity removing and dust removing device, a support, a feeding and roller passing mechanism and a pressing roller, wherein the static electricity removing and dust removing device, the feeding and roller passing mechanism and the pressing roller are all arranged on the support, and the pressing roller is positioned at one side of the feeding and roller passing mechanism;

and the battery pole piece is conveyed to the static electricity removing and dust removing device on the feeding roller passing mechanism, is subjected to static electricity removal by the static electricity removing component, is subjected to dust removal by the dust removing component, and is then rolled by the pressing roller.

Preferably, the static-removing and dust-removing devices are provided with two groups, and the two groups of static-removing and dust-removing devices are respectively arranged on two sides of the feeding roller-passing mechanism.

Preferably, the support is provided with an air pipe channel, and the suction head of the dust removing assembly is communicated with the power supply unit through a dust suction air pipe penetrating through the air pipe channel.

The utility model has the beneficial effects that: the static-removing and dust-removing device is arranged on one side of the air suction head of the dust-removing assembly, and can firstly perform static-removing treatment on the battery pole piece in the conveying process of the battery pole piece, so that the adhesive force of foreign matters such as metal scraps, dust and the like on the battery pole piece is reduced, the foreign matters such as metal scraps, dust and the like are easy to fall off from the battery pole piece, and then the foreign matters such as metal scraps, dust and the like on the battery pole piece are adsorbed and removed through the dust-removing assembly, so that the foreign matters such as metal scraps, dust and the like on the battery pole piece can be effectively cleaned, the dust-removing effect of the battery pole piece is improved, the subsequent rolling quality of the battery pole piece is ensured, and the roller damage of the roller press is avoided.

Drawings

FIG. 1 is a schematic diagram of a static electricity removing and dust removing device provided by the utility model;

FIG. 2 is a schematic structural diagram of the static electricity removing assembly according to the present utility model;

FIG. 3 is a top view of the static discharge unit provided by the present utility model;

fig. 4 is a schematic structural view of the roll squeezer provided by the utility model.

In the figure:

1. a dust removal assembly; 11. an air suction head; 12. a power supply unit; 13. a dust collection air pipe; 14. an air suction head fixing unit; 2. a static-removing assembly; 21. a static electricity removing unit; 211. an ion generating electrode; 212. an air flow generator; 213. a mounting member; 214. an air duct; 215. a pin shaft portion; 216. an insulation adjusting part; 22. an insulating protective shell; 23. a fixed beam;

10. an electrostatic-removing and dust-removing device; 20. a support; 201. a fixed base; 202. a press roller fixing mechanism; 30. feeding and passing a roller mechanism; 301. passing through a roller; 40. a press roller; 50. a control cabinet; 501. a control panel; 100. and a battery pole piece.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In order to prevent the generation of static electricity in the black material region of the aluminum scraps and the battery electrode sheet 100 (particularly, the positive electrode sheet), the reason for the generation of static electricity is as follows: aluminum is easy to combine with oxygen, water and carbon dioxide in the air to generate products such as aluminum oxide, aluminum hydroxide, aluminum carbonate and the like, a layer of fine oxide film is formed to cover the appearance of an aluminum profile, so that the appearance loses the original gloss, and in order to improve the situation, a layer of electroplating film is required to be formed on the appearance of the aluminum profile to play a role of isolating air and preventing oxidization, the aluminum profile has a conducting function, an insulator is formed after the appearance is covered by a layer of electroplating film, an electrostatic field can be formed with other substances, more charge sets are formed, when the charge sets form static to a certain extent, the aluminum profile can have different types of positive and negative charges through a plurality of working procedures in the production process, and other charged bodies in the air are added, according to the principle of conflict electrification, when objects are in conflict, the collected electric quantity can not move like the electric charges in the electric wires, but stays on the outer surface of the aluminum section bar, a plurality of objects carry a certain amount of static electricity, and the electric charges generated by the conflict are added, more and more static electricity is collected on the outer surface of the aluminum section bar, which is the reason that the static electricity is generated on the outer surface of the aluminum section bar), the surface of a black material area is adsorbed, so that manual or equipment dust removal is invalid, and the potential safety hazards caused by foreign matters such as metal scraps and dust on the battery pole piece 100 to the battery are avoided, meanwhile, in order to effectively avoid damaging a roller press, the utility model provides the static electricity removing and dust removing device 10 which can perform static electricity removing treatment on the foreign matters such as the metal scraps and the dust attached on the surface of the battery pole piece 100, and is subjected to a dust suction treatment after the static electricity is removed so that foreign substances such as metal dust, dust and the like are separated from the battery pole piece 100.

As shown in fig. 1, the static-removing and dust-removing device 10 includes a dust-removing assembly 1 and a static-removing assembly 2, wherein the static-removing assembly 2 is mounted on one side of the dust-removing assembly 1, specifically, along the conveying direction of the battery pole piece 100, the static-removing assembly 2 is located at the upstream of the dust-removing assembly 1, that is, in the conveying process of the battery pole piece 100, static is removed by the static-removing assembly 2, so as to reduce the adhesion force of metal scraps, dust and other foreign matters on the battery pole piece 100, so that the metal scraps, dust and other foreign matters are easy to fall off from the battery pole piece 100, and then the dust is removed by the dust-removing assembly 1, so that the metal scraps, dust and other foreign matters on the battery pole piece 100 can be effectively cleaned, and the dust-removing effect of the battery pole piece 100 is improved. And the subsequent rolling quality of the battery pole piece 100 can be ensured, and the damage of the roller 40 of the roller press is avoided.

For example, referring to fig. 1, the dust removing assembly 1 includes a suction head 11, a power supply unit 12 (not shown in fig. 1, referring to fig. 4), a dust suction air pipe 13, and a suction head fixing unit 14, wherein the suction head 11 can be fixed to a processing apparatus of the battery pole piece 100 by the suction head fixing unit 14 or to a stand by the suction head fixing unit 14, so that the dust removing assembly 1 is separately provided. The power supply unit 12 can provide power to the suction head 11, so that the suction head 11 can generate suction force to adsorb and remove the foreign matters such as metal scraps and dust on the battery pole piece 100.

Preferably, the suction head 11 is provided with a suction port, and the suction port is communicated with the power supply unit 12 through the dust suction pipe 13. The air suction inlet can cover the battery pole piece 100 so as to ensure that foreign matters such as metal scraps, dust and the like on the battery pole piece 100 can be completely adsorbed and removed.

The principle of the power supply unit 12 may refer to a dust collector, for example, an air pump, an air pipe, a foreign matter storage box, etc. may be disposed inside the power supply unit 12, so as to collect the foreign matters such as metal dust and dust adsorbed by the air suction head 11. Preferably, the power supply unit 12 provides an adjustable adsorption force to facilitate better dust removal operation, and avoid too small adsorption force to effectively remove foreign matters, or too large adsorption force to damage the battery pole piece 100, and avoid wasting energy.

In this embodiment, the suction head fixing units 14 are disposed on two sides of the suction head 11, so as to better realize the fixed installation of the suction head 11.

As shown in fig. 1, the static eliminating assembly 2 of the present embodiment is installed on one side of the suction head 11, that is, the static eliminating assembly 2 of the present embodiment is integrated on the dust removing assembly 1, so as to facilitate the installation of the whole static eliminating and dust removing device 10. It will of course be appreciated that the static discharge assembly 2 may also be removably mounted to the dusting assembly 1 for ease of maintenance.

Referring to fig. 2, the static eliminating assembly 2 includes a plurality of static eliminating units 21 and an insulating protective shell 22, wherein the static eliminating units 21 are disposed in the insulating protective shell 22, each static eliminating unit 21 can generate positive and negative ions, and can convey the generated positive and negative ions to the surface of the battery pole piece 100, so as to eliminate the static of foreign matters such as metal filings, dust, etc. on the surface of the battery pole piece 100. Preferably, positive and negative ions generated by the plurality of static electricity removing units 21 cover the surface of the battery pole piece 100 to ensure that the battery pole piece 100 is completely subjected to a static electricity removing process. Optionally, the number of the plurality of static eliminating units 21 may be adjustable, at least to ensure that the battery pole piece 100 is covered in the width direction (the direction perpendicular to the conveying direction of the battery pole piece 100) of the battery pole piece 100.

Further, the static eliminating units 21 are distributed at equal intervals, and static electricity can be eliminated more uniformly on the whole surface of the battery pole piece 100 through the static eliminating units distributed at equal intervals.

In this embodiment, the static electricity removing unit 21 includes an ion generating electrode 211, and the ion generating electrode 211 is used to ionize air under high pressure to generate positive and negative ions, and the generated positive and negative ions can be transferred to the surface of the battery pole piece 100 to neutralize static electricity.

Optionally, in one embodiment, the ion generating electrode 211 is disposed near the battery pole piece 100, and the distance between the ion generating electrode 211 and the battery pole piece 100 needs to be such that positive and negative ions generated by the ion generating electrode 211 can exactly perform static elimination on the surface of the battery pole piece 100 (at this time, no additional power is required to transport the positive and negative ions). In another embodiment, the ion generating electrode 211 is mounted such that positive and negative ions generated by the ionized air can be transported to the battery pole piece 100 by the air flow, and the positive and negative ions are transported to the surface of the battery pole piece 100 by the air flow to neutralize the static electricity.

Preferably, the static electricity removing unit 21 of the present embodiment may further include an air flow generator 212, and the air flow generator 212 is disposed at a side of the ion generating electrode 211 facing away from the battery pole piece 100. By the airflow generator 212, an airflow can be generated to deliver positive and negative ions generated by the ionization of air by the ion generating electrode 211 to the battery pole piece 100. The airflow generator 212 may be a fan or other device capable of generating airflow.

In this embodiment, the ion generating electrode 211 may be a probe structure, which is disposed to be directed to the battery pole piece 100, and ionizes air into a large amount of positive and negative ions through high voltage corona discharge at the tip of the probe structure to neutralize static electricity on the surface of the battery pole piece 100. It will be understood that, of course, the ion generating electrode 211 may also be a strip structure, where the extending direction of the strip structure intersects with the conveying direction of the battery pole piece 100 and covers the battery pole piece 100 in the width direction of the battery pole piece 100, and the strip structure ionizes air to generate a row of positive and negative ions, so as to achieve a wide-range static electricity elimination of the battery pole piece 100, and the static electricity elimination speed per unit time is faster.

Preferably, referring to fig. 2, the static electricity removing unit 21 further includes a mounting member 213, and the mounting member 213 is preferably made of an insulating material. The ion generating electrode 211 and the air flow generator 212 are both installed in the installation member 213, for example, the installation member 213 may be configured as a cylindrical structure, and at least two ends thereof are provided with cavities, the ion generating electrode 211 is installed in the cavity of the end of the installation member 213 near the battery pole piece 100, and the air flow generator 212 is installed in the cavity of the end of the installation member 213 far away from the battery pole piece 100, so as to generate an air flow to blow positive and negative ions toward the battery pole piece 100.

Preferably, when the ion generating electrode 211 is of a probe structure, the ion generating electrode 211 is provided protruding from the mounting member 213, by which the ion generating electrode 211 can be made closer to the battery pole piece 100, further ensuring that the generated positive and negative ions are more used for eliminating static electricity. In addition, in the present embodiment, the tip of the ion generating electrode 211 is preferably flush with the suction opening of the suction head 11, so that the static electricity removing and dust removing effects are better, that is, the static electricity removing battery pole piece 100 can remove dust effectively and immediately after the static electricity is removed.

Preferably, when the ion generating electrode 211 is in a probe structure, the airflow generator 212, the mounting member 213 and the ion generating electrode 211 are coaxially arranged, so that better transportation of positive and negative ions is realized, and the volume of the whole static eliminating unit 21 can be reduced, thereby saving the installation space of the static eliminating unit 21.

As a preferred solution, a plurality of air channels 214 are disposed in the mounting member 213, one end of the air channel 214 is disposed below the air flow generator 212, and the other end of the air channel is disposed through the mounting member 213, and the air flow generated by the air flow generator 212 can be conveyed to the ion generating electrode 211 through the air channel 214 to better convey the positive and negative ions. More preferably, the air channels 214 are circumferentially and uniformly arranged in the mounting piece 213, and the air channels 214 are surrounded outside the ion generating electrode 211, so as to ensure that the air in the air channels 214 is uniformly conveyed to the ion generating electrode 211, and achieve better conveying effect on positive and negative ions. In this embodiment, as shown in fig. 3, 4 air channels 214 are provided. It should be noted that, the caliber of the air duct 214 in this embodiment may be smaller, so as to increase the flow speed and pressure of the air flow flowing therein, so that the effect on positive and negative ions is quicker and more obvious, and the static electricity removing effect is better.

Alternatively, a cavity may be directly formed in the center of the mounting member 213, and the cavity is communicated with the cavities at two ends of the mounting member 213, so that the air flow generated by the air flow generator 212 can be conveyed to the ion generating electrode 211 through the cavity, so as to achieve a better conveying effect on the positive and negative ions.

In this embodiment, as shown in fig. 2, the static electricity removing unit 21 further includes an ion generating electrode fixing member, the ion generating electrode fixing member includes a pin shaft portion 215 and an insulation adjusting portion 216, the pin shaft portion 215 is connected with one end of the insulation adjusting portion 216, a through hole is formed on a sidewall of the ion generating electrode 211, and the pin shaft portion 215 is penetrated from the through hole and is inserted into or screwed onto one side inner wall or two side inner walls of the mounting member 213. By the above-described connection of the pin shaft portion 215, the ion generating electrode 211 can be firmly fixed in the cavity of the mount 213.

The insulation adjusting part 216 is located at the outer side of the mounting part 213 for rotating the pin part 215 of the ion generating electrode fixing part to fix or detach the ion generating electrode 211. The insulation adjusting portion 216 may be an insulation bolt, for example.

Alternatively, the ion generating electrode 211 and the airflow generator 212 described above in this embodiment may be turned on and off simultaneously, that is, the ion generating electrode 211 and the airflow generator 212 are turned on simultaneously when the static electricity removing unit 21 is in use, so that positive and negative ions generated by the ion generating electrode 211 are blown toward the battery pole piece 100. Preferably, the ion generating electrode 211 and the air flow generator 212 are connected to a power source through wires to achieve synchronous turn-on.

It will be understood, of course, that the ion generating electrode 211 and the airflow generator 212 may be turned on and off asynchronously, but independently. For example, when the ion generating electrode 211 is located close to the battery pole piece 100 and no power is required to transport positive and negative ions, only the ion generating electrode 211 may be turned on without turning on the airflow generator 212. When power delivery of positive and negative ions is desired, the airflow generator 212 may be turned on.

Preferably, as shown in fig. 2, a fixed beam 23 is provided in the insulating protective case 22, and a plurality of static electricity removing units 21 are mounted on the fixed beam 23 to ensure stable operation of the static electricity removing units 21.

The insulating protective shell 22 is mounted on one side of the suction head 11, and the insulating protective shell 22 is made of an insulating material, so that the influence on positive and negative ions generated by the static removing unit 21 is reduced, the positive and negative ions can be conveyed to the surface of the battery pole piece 100, and the static removing effect is improved.

When the above-mentioned static-removing and dust-removing device 10 of this embodiment is used, firstly, by starting the probe 212 and the fan 213 of the static-removing unit 21, positive and negative ions generated by the probe 212 are blown to the battery pole piece 100 by the fan 213, so as to perform static-removing treatment on the battery pole piece 100, so as to reduce the adhesion force of metal scraps, dust and other foreign matters on the battery pole piece 100, so that the metal scraps, dust and other foreign matters are very easy to fall off from the battery pole piece 100, and then the dust removing assembly 1 is used for adsorbing and removing the metal scraps, dust and other foreign matters on the battery pole piece 100, so that the foreign matters such as metal scraps, dust and the like on the battery pole piece 100 can be effectively cleaned. The static electricity and dust removing device 10 is simple in design and low in cost.

It should be noted that, the dust removing assembly 1 and the static removing assembly 2 of the present embodiment may be used under separate control, for example, when the battery pole piece 100 has no static attraction, the dust removing assembly 1 may be only started to perform dust removing treatment on the battery pole piece 100. The dust removing assembly 1 and the static removing assembly 2 can be synchronously started to realize synchronous operation of static removal and dust removal of the battery pole piece 100.

The static electricity and dust removing device 10 of the present embodiment can be applied to any situations where static electricity and dust are required to be removed from the battery pole piece 100. Preferably, the method can be applied to a roller press.

As shown in fig. 4, the present utility model further provides a roller press, which includes the static electricity removing and dust removing device 10, a support 20, a feeding roller passing mechanism 30 and a pressing roller 40, wherein the static electricity removing and dust removing device 10 is installed on the support 20 and is located at one side of the pressing roller 40. A feeding and passing mechanism 30 is mounted on the support 20, the feeding and passing mechanism 30 is used for mounting a rotatable passing roller 301, and the battery pole piece 100 can be placed on the passing roller 301 and driven to move by the passing roller 301. The press roller 40 is mounted on the support 20, and the press roller 40 is disposed on one side of the feeding roller passing mechanism 30, so as to roll the battery pole piece 100. After the battery pole piece 100 is subjected to static electricity removal and dust removal by the static electricity removal and dust removal device 10, the battery pole piece 100 is conveyed to the lower part of the press roller 40, and the press roller 40 is used for rolling the battery pole piece 100. The press rollers 40 are provided in this embodiment in two and are disposed opposite to each other up and down so as to press the battery pole piece 100.

By arranging the static-removing and dust-removing device 10, the roller press of the embodiment not only ensures the cleanliness of the battery pole piece 100 before rolling, but also ensures the high quality of the battery pole piece 100 after rolling and the safe use of rolling equipment.

Referring to fig. 4, the electrostatic precipitator 10 of the present embodiment is provided with two groups, and the two groups of electrostatic precipitator 10 are respectively disposed at two sides of the feeding roller mechanism 30, so as to achieve the operations of removing static electricity and dust on two sides of the battery pole piece 100. Preferably, the distance between the suction head 11 and the roller 301 of the static-removing dust-removing device 10 in this embodiment is between 2cm and 5cm, so that on one hand, ineffective static removal and poor dust removal effect caused by too large distance can be avoided, and on the other hand, difficulty in cleaning the roller 301 caused by too small distance can be avoided.

In this embodiment, the support 20 includes a fixing base 201 and a pressing roller fixing mechanism 202, the pressing roller fixing mechanism 202 is mounted on the fixing base 201, and the pressing roller 40 and the electrostatic precipitator 10 are both mounted on the pressing roller fixing mechanism 202. An air duct (not shown) is provided in the platen roller fixing mechanism 202, and the air duct is capable of placing the dust suction air duct 13 communicating the suction head 11 and the power supply unit 12. Further, one end of the air duct extends to the bottom of the platen roller fixing mechanism 202, and the power supply unit 12 of the present embodiment is provided at one side of the fixing base 201, which can communicate with the dust suction air duct 13 through a duct.

Preferably, the dust removing assembly 1 and the static removing assembly 2 of the present embodiment may be powered by a power supply of the roller press, or may be powered by a power supply alone.

The roller press further includes a control box 50, where the control box 50 is disposed on the fixing base 201 and is located at one side of the press roller fixing mechanism 202, and a control panel 501 is disposed on the control box 50, and the control panel 501 has a touch screen, which can be used by an operator to operate, for example, control the feeding and passing mechanism 30 and the operation of the press roller 40. Control buttons may also be provided on the control box 50 to implement control operations (e.g., emergency stop, etc.).

Preferably, the control panel 501 may also be connected to the static-removing and dust-removing device 10, so that the control panel 501 can control the dust-removing assembly 1 and the static-removing assembly 2.

When the roller press of this embodiment is used, the static-removing and dust-removing device 10 may be installed on the press roller fixing mechanism 202, then the roller 301 is controlled to rotate to convey the battery pole piece 100, when the battery pole piece 100 is conveyed to the static-removing and dust-removing device 10, the static-removing component 2 is firstly used for removing static electricity, then the dust is removed by the dust-removing component 1, and then the battery pole piece is conveyed to the lower portion of the press roller 40, and the press roller 40 is used for performing the rolling operation.

The roll squeezer of the embodiment can ensure that the battery pole piece 100 is rolled and produced on the premise of cleaning by the static electricity removing and dust removing device 10 for lithium ion batteries of different projects such as power, energy storage, digital codes and the like and battery pole pieces 100 manufactured by different stirring process formulas in each project, thereby improving the qualification rate and the production efficiency of the rolling and production of the batteries of different projects. For the battery pole piece 100 of the oil-based water system, the battery pole pieces 100 produced by coating different kinds of foil materials, the positive electrode or the negative electrode battery pole piece 100 can be rolled and produced on the premise of ensuring the cleanness of the battery pole piece 100, so that the rolling quality is effectively improved, the rolling effect of the battery pole piece 100 is ensured, the safety of a roller press is ensured, and the safety and better performance of the battery produced later are ensured.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (12)

1. Destatics dust collector, its characterized in that includes:

the dust removing assembly (1), the dust removing assembly (1) comprises an air suction head (11) and a power supply unit (12) communicated with the air suction head (11);

the static eliminating assembly (2), static eliminating assembly (2) install in induced draft head (11) one side, along the direction of delivery of battery pole piece (100), static eliminating assembly (2) are located the upper reaches of dust collecting assembly (1), make battery pole piece (100) are through after static eliminating assembly (2) static again by dust collecting assembly (1) dust removal.

2. The static-removing and dust-removing device according to claim 1, wherein the static-removing assembly (2) comprises a plurality of static-removing units (21), and the static-removing units (21) are configured to generate positive and negative ions and deliver the positive and negative ions to the surface of the battery pole piece (100).

3. The static-removing and dust-removing device according to claim 2, wherein the static-removing unit (21) includes an ion-generating electrode (211), the ion-generating electrode (211) being configured to ionize air under high pressure to generate positive and negative ions;

the ion generating electrode (211) is arranged close to the battery pole piece (100), or the ion generating electrode (211) is arranged at a mounting position that positive and negative ions generated by ionized air can be conveyed to the battery pole piece (100) by airflow.

4. A static-removing and dust-removing device according to claim 3, wherein the ion-generating electrode (211) is of a probe structure or a strip structure, and when the ion-generating electrode (211) is of a strip structure, the extending direction thereof intersects with the conveying direction of the battery pole piece (100);

and/or the static electricity removing unit (21) further comprises an air flow generator (212), wherein the air flow generator (212) is arranged on one side of the ion generating electrode (211) away from the battery pole piece (100) and is used for generating air flow so as to convey positive and negative ions generated by ionized air of the ion generating electrode (211) to the battery pole piece (100).

5. The static-removing and dust-removing device according to claim 4, wherein the static-removing unit (21) further comprises a mounting member (213), the mounting member (213) being for mounting the ion-generating electrode (211) and the airflow generator (212);

and/or the mounting piece (213) is provided with an air duct (214) or a cavity for directional circulation of the air flow generated by the air flow generator (212).

6. The static-removing and dust-removing device according to claim 5, wherein the mounting member (213) has a cylindrical structure, and at least two ends thereof have cavities for mounting the ion-generating electrode (211) and the air flow generator (212), the ion-generating electrode (211) being mounted at one end of the mounting member (213) near the battery pole piece (100), and the air flow generator (212) being mounted at the other end of the mounting member (213).

7. The static-removing and dust-removing device according to claim 6, wherein the static-removing unit (21) further comprises an ion-generating electrode fixing member including a pin shaft portion (215) and an insulation adjusting portion (216), the pin shaft portion (215) being connected to one end of the insulation adjusting portion (216);

the pin shaft part (215) is penetrated from the through hole of the ion generating electrode (211) and is inserted or screwed on at least one side inner wall of the mounting piece (213);

the insulation adjusting part (216) is positioned outside the mounting part (213) and is used for rotating the ion generating electrode fixing part to fix or detach the ion generating electrode (211).

8. The static-removing and dust-removing device according to claim 4, wherein the ion generating electrode (211) and the airflow generator (212) are arranged to be turned on and off synchronously or non-synchronously;

and/or the dust removing assembly (1) and the static removing assembly (2) are arranged to be synchronously or asynchronously opened and closed.

9. The static-removing and dust-removing device according to any one of claims 2 to 8, wherein the static-removing assembly (2) further comprises an insulating protective shell (22), the insulating protective shell (22) is mounted on the suction head (11), and the static-removing unit (21) is located in the insulating protective shell (22).

10. The roll squeezer is characterized by comprising the static electricity and dust removing device (10), a support (20), a feeding and roller passing mechanism (30) and a press roll (40) according to any one of claims 1-9, wherein the static electricity and dust removing device (10), the feeding and roller passing mechanism (30) and the press roll (40) are all arranged on the support (20), and the press roll (40) is positioned on one side of the feeding and roller passing mechanism (30);

the battery pole piece (100) is conveyed to the static electricity removing and dust removing device (10) on the feeding and roller passing mechanism (30), is subjected to static electricity removal through the static electricity removing assembly (2), is subjected to dust removal through the dust removing assembly (1), and is then rolled by the pressing roller (40).

11. The roller press according to claim 10, wherein the static and dust removing devices (10) are provided with two groups, and the two groups of static and dust removing devices (10) are respectively arranged at two sides of the feeding roller passing mechanism (30).

12. Roller press according to claim 10, characterized in that the support (20) is provided with an air duct channel, the suction head (11) of the dust removal assembly (1) being connected to the power supply unit (12) by means of a suction air duct (13) passing through the air duct channel.