CN220590397U - Electrostatic spraying equipment and dry coating machine - Google Patents
Electrostatic spraying equipment and dry coating machine Download PDFInfo
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- CN220590397U CN220590397U CN202321030244.5U CN202321030244U CN220590397U CN 220590397 U CN220590397 U CN 220590397U CN 202321030244 U CN202321030244 U CN 202321030244U CN 220590397 U CN220590397 U CN 220590397U
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- 238000007590 electrostatic spraying Methods 0.000 title claims abstract description 30
- 238000000576 coating method Methods 0.000 title abstract description 43
- 239000011248 coating agent Substances 0.000 title abstract description 40
- 238000005507 spraying Methods 0.000 claims abstract description 103
- 239000000463 material Substances 0.000 claims abstract description 73
- 230000000712 assembly Effects 0.000 claims abstract description 19
- 238000000429 assembly Methods 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims description 109
- 238000005096 rolling process Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 1
- 239000011247 coating layer Substances 0.000 abstract description 35
- 230000000694 effects Effects 0.000 abstract description 11
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The application discloses an electrostatic spraying device, comprising a conveying assembly, a control assembly and a control assembly, wherein the conveying assembly is used for conveying a conveying belt; the spraying assemblies are provided with a plurality of spraying assemblies and are respectively distributed at intervals along the conveying paths of the material belts; the first driving assembly is connected with the spraying assembly and is suitable for driving the spraying assembly to move along the width direction of the material belt; the embodiment also provides a dry coating machine, which comprises the electrostatic spraying equipment; by adopting the technical scheme provided by the application, the height of the peripheral part of the coating layer is more similar to the thickness of the center position of the coating layer after coating and overlapping, the uniformity of the density of the whole coating layer is finally improved, the coating effect is improved, and the product quality is improved.
Description
Technical Field
The application relates to the technical field of coating equipment, in particular to electrostatic spraying equipment and a dry coating machine.
Background
The pole piece is one of important raw materials in battery production, the production process of the pole piece involves a coating process, and the dry coating is one of the coating processes, and the specific process is as follows: the mixed material after fibrillation treatment is dropped into a compression roller group of a rolling device through a blanking bin to roll so as to form an electrode film with self-supporting characteristic, the electrode film is covered with a current collector and rolled through the compression roller group of another rolling device to form a pole piece with the electrode film formed on one side, but the self-supporting electrode film is easy to break under the condition that a supporting unit is not used for supporting, and in order to avoid the problem, the self-supporting film can be formed through the electrostatic spraying instead of the rolling, and the method is as follows: the powder is electrostatically charged by placing the mixture into an electrostatic spraying device, and then spraying the mixed powder onto the surface of the current collector to form a coating layer on the surface of the current collector.
However, since the sprayed powder has a height difference in a plane, i.e., the center portion of the coating layer is thicker than the surrounding portions, the conventional electrostatic spraying device cannot uniformly spray the mixed material on the surface of the current collector, and finally affects the production quality of the product.
Disclosure of Invention
The present application aims to provide an electrostatic spraying device and a dry coating machine, so as to solve at least one technical problem.
In order to solve the technical problems, the application provides an electrostatic spraying device and a dry coating machine, and in a first aspect, the application provides an electrostatic spraying device, which comprises a conveying assembly, a conveying belt and a drying machine, wherein the conveying assembly is used for conveying the conveying belt;
the spraying assemblies are provided with a plurality of spraying assemblies and are respectively distributed at intervals along the conveying paths of the material belts;
the first driving assembly is connected with the spraying assembly and is suitable for driving the spraying assembly to move along the width direction of the material belt;
in the implementation process, the conveying component is used for conveying the material belt, the spraying component is arranged along the conveying path of the material belt and can spray the coating on the material belt, the first driving component can drive the spraying component to move along the width direction of the material belt, it is understood that the movement of the spray gun and the movement of the material belt finally enable the coating surface formed by the coating on the material belt to be in an inclined belt shape, the coating surface formed by the next spray gun also is in an inclined belt shape, the edge positions of the coating surfaces formed by the two spray guns are overlapped, the height of the peripheral part of the coating layer is enabled to be closer to the thickness of the center position of the coating layer after the coating is overlapped, the uniformity of the density of the whole coating layer is finally improved, the coating effect is improved, and the product quality is improved.
Preferably, a plurality of spraying components are distributed at equal intervals;
the interval time of the spraying starting time points of the adjacent spraying components is equal;
in the implementation process, the interval time of the starting time points of the adjacent spraying components is equal, if the current spraying component starts to spray for five seconds, the next spraying component is matched with the first driving component to start spraying, then the next spraying component starts to spray after ten seconds, and the spraying components are equally spaced, so that the finally formed coating layers are identical in shape and equal in interval, the uniformity of the whole coating layer can be further improved, and the spraying effect is further improved.
Preferably, each spraying assembly comprises a plurality of spraying guns which are arranged at equal intervals along the conveying path of the material belt, and a plurality of spraying guns in the same spraying assembly synchronously spray;
in the implementation process, each spraying component comprises a plurality of spraying guns, namely, the area range of each spraying component is the sum of the area ranges of the spraying guns, the number of the spraying guns is increased in a single spraying component, the spraying guns in the same spraying component are enabled to start spraying simultaneously, the interval distance of spraying on two sides can be increased, therefore, adjacent spraying components can have more time buffering, and the risk that the spraying guns cannot be connected in time when spraying by the last spraying gun is reduced.
Preferably, a plurality of spraying components are distributed at equal intervals;
the interval time of the spraying starting time points of the adjacent spraying components is equal;
the number of the spray guns of at least two groups of adjacent spray assemblies is equal, and the interval distances between the adjacent spray guns are equal;
in the implementation process, the number of the spray guns arranged by different spray assemblies is equal, and the interval distances of the spray gun parts are equal, namely, the shapes and the areas of the spray surfaces formed by the different spray assemblies are the same, so that the spray effect under the condition that a single spray assembly is provided with a plurality of spray guns can be further improved.
Preferably, the first driving component comprises a first rotary driving piece, a screw rod and a connecting piece in threaded fit with the screw rod;
the spraying assembly comprises a spray gun, the spray gun is arranged on the connecting piece, the screw rod is arranged at the driving end of the first rotary driving piece, and the first rotary driving piece is suitable for driving the screw rod to rotate so as to drive the connecting piece to axially move along the screw rod;
the screw rod is axially parallel to the width direction of the material belt;
in the implementation process, the first rotary driving piece drives the screw rod to rotate, and then drives the connecting piece to move along the axial direction of the screw rod, namely along the width direction of the material belt, and the spray gun is arranged on the connecting piece, so that the spray gun is driven to move along the width direction of the material belt.
Preferably, the spray assembly comprises a spray gun; the mixing device is used for mixing and forming a mixed material with static electricity and spraying the mixed material on the material belt through the spray gun.
Preferably, the material strip comprises a pole piece material strip.
Preferably, the conveying assembly comprises a second rotary driving piece, a conveying belt, a conveying table and a plurality of driving rollers arranged on the conveying table;
the driving rollers are arranged at intervals and define a conveying path for forming the material belt, the conveying belt is wound on the driving rollers, and the second rotary driving piece is suitable for driving at least one driving roller to rotate so as to drive the conveying belt to move along the moving path of the material belt;
in the realization process, the conveyer belt is wound on a plurality of driving rollers, the second rotary driving piece drives at least one driving roller to rotate so as to realize the movement of the conveyer belt, and the conveyer belt can play a supporting role on the driving rollers, so that a coating surface formed after spraying is smoother, and the coating quality is improved.
In a second aspect, the present application provides a dry coater comprising an electrostatic spraying apparatus as described in any of the above.
Preferably, the device also comprises a preheating device and a rolling device;
the electrostatic spraying equipment, the preheating device and the rolling device are sequentially arranged along the conveying direction of the material belt;
in the implementation process, the material belt is preheated by a preheating device after being sprayed by the electrostatic spraying equipment; taking the pole piece production as an example, the coating layer after the rolling and preheating of the rolling device is rolled in the current collector to finally form the pole piece.
Compared with the prior art, the beneficial effect of this application lies in: this application sets up a plurality of spraying subassembly through following material area delivery path to make first drive assembly drive spraying subassembly remove along the width direction in material area, the removal in cooperation material area makes the coating edge position that two adjacent spraying subassemblies formed form to overlap, finally can make the height of the surrounding part of coating overlap the back with the thickness of coating central point put more nearly, finally promotes the homogeneity of whole coating density, promotes the coating effect, promotes product quality.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a dry coater according to one embodiment of the present application;
FIG. 2 is a schematic structural view of an electrostatic coating apparatus according to one embodiment of the present application;
FIG. 3 is a schematic view of the tape coating state of FIG. 2;
FIG. 4 is a schematic diagram showing a state of coating a tape according to one embodiment of the present application;
FIG. 5 is a schematic illustration of a cross-sectional coating effect of the coating layer of FIG. 4;
FIG. 6 is a schematic illustration of a web application state according to one embodiment of the present application;
FIG. 7 is a schematic illustration of a cross-sectional coating effect of the coating layer of FIG. 6;
FIG. 8 is a schematic illustration of the coating effect of a coating layer of a web according to one embodiment of the present application;
wherein: 10. a spray gun; 11. a first spray gun; 12. a second spray gun; 13. a third spray gun; 14. a fourth spray gun; 20. a first drive assembly; 30. a preheating device; 40. a rolling device; 51. a first coating layer; 52. a second coating layer; 53. a third coating layer; 54. a fourth coating layer;
c1, a first direction; c2, the second direction.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; 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 terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the description of the present application, it should be understood that the terms "upper," "lower," "side," "front," "rear," and the like indicate an orientation or positional relationship based on installation, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.
It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same parts or the same components, and for the same components in the embodiments of the present application, reference numerals may be given to only one of the parts or components in the drawings by way of example, and it should be understood that, for other same parts or components, the reference numerals are equally applicable.
For a further understanding of the utility model, features and efficacy of this application, the following examples are set forth to illustrate, together with the drawings, the detailed description of which follows:
examples
One of the dry coating processes is as follows: the mixed material after fibrillation treatment is dropped into a compression roller group of a rolling device through a blanking bin to roll so as to form an electrode film with self-supporting characteristic, the electrode film is covered with a current collector and rolled through the compression roller group of another rolling device to form a pole piece with the electrode film formed on one side, but the self-supporting electrode film is easy to break under the condition that a supporting unit is not used for supporting, and in order to avoid the problem, the self-supporting film can be formed through the electrostatic spraying instead of the rolling, and the method is as follows: the powder is electrostatically charged by placing the mixture into an electrostatic spraying device, and then spraying the mixed powder onto the surface of the current collector to form a coating layer on the surface of the current collector.
However, since the sprayed powder has a height difference in plane, i.e., the center portion of the coating layer is thicker than the surrounding portions, the conventional electrostatic spraying device cannot uniformly spray the mixed material on the surface of the current collector, and finally the production quality of the product is affected; in order to solve the above technical problems, the present embodiment proposes the following technical solutions:
referring specifically to fig. 1-8, the present embodiment provides an electrostatic spraying apparatus, which includes a conveying assembly (not shown), a spraying assembly, and a first driving assembly 20;
specifically, the conveying assembly is used for conveying the material belt;
specifically, the spraying assembly is provided with a plurality of spraying assemblies which are respectively distributed at intervals along the conveying path of the material belt; referring to fig. 1, in some embodiments, it is understood that the spray assemblies are arranged along a first direction that is parallel to the direction of transport of the web.
Specifically, the first driving assembly 20 is connected with the spraying assembly and is suitable for driving the spraying assembly to move along the width direction of the material belt;
further, referring to fig. 2, in some embodiments, it can be understood that the first driving component 20 drives the spraying component to move along a second direction, and the second direction is parallel to the width direction of the material belt;
further, in some embodiments, the first direction and the second direction are perpendicular to each other.
In the above-mentioned scheme, the conveying component is used for conveying the material belt, the spraying component is arranged along the conveying path of the material belt, and can spray the coating on the material belt, the first driving component 20 can drive the spraying component to move along the width direction of the material belt, it is understood that the movement of the spray gun 10 and the movement of the material belt finally enable the coating surface formed by the coating on the material belt to be in an inclined belt shape, the coating surface formed by the next spray gun 10 also is in an inclined belt shape, the edge positions of the coating surfaces formed by the two spray guns 10 are overlapped, the height of the peripheral part of the coating layer is enabled to be closer to the thickness of the center position of the coating layer after the coating is overlapped, the uniformity of the density of the whole coating layer is finally improved, the coating effect is improved, and the product quality is improved.
Referring to fig. 4-5, the spray assembly includes a spray gun 10, for example, a single spray gun 10, which forms a spray surface on a web, as shown in fig. 4, in an inclined strip shape, while taking a cross-sectional shape of a coating layer in the A-A direction, which may approximate the shape shown in fig. 5, particularly, a center portion of the coating layer is thicker than a surrounding portion.
Referring further to fig. 6-7, taking two spray guns 10 as an example, there is a certain overlap of the spray surfaces formed by the two spray guns 10 on the web, and referring specifically to fig. 6, and the cross-sectional shape of the coating layer is taken in the B-B direction, which may approximate the shape shown in fig. 7, and specifically there is an overlap of the edge portions of the two coating layers, and the thickness of the edge portions after the overlap is closer to the thickness of the center position of the coating layer.
In particular, in some embodiments, the plurality of spray assemblies are equally spaced apart;
further, the interval time of the spraying starting time points of the adjacent spraying assemblies is equal;
in the above scheme, the interval time of the starting time points of the adjacent spraying components is equal, if the current spraying component starts to spray for five seconds, the next spraying component is matched with the first driving component 20 to start spraying, then the next spraying component starts to spray after ten seconds, and the spraying components are equally spaced, so that the finally formed coating layers are identical in shape and equal in interval, the uniformity of the whole coating layer can be further improved, and the spraying effect is further improved.
Specifically, each spraying assembly comprises a plurality of spraying guns 10 which are arranged at equal intervals along the conveying path of the material belt, and a plurality of spraying guns 10 in the same spraying assembly synchronously spray;
in the above-mentioned scheme, each spraying subassembly includes a plurality of spray guns 10, and the regional scope that indicates that each spraying subassembly can spray is the sum of a plurality of spray guns 10 can spray regional scope, and this scheme is through setting up the quantity of spray guns 10 in single spraying subassembly, and makes the spray gun 10 in same spraying subassembly start the spraying simultaneously, can increase the interval that both sides sprayed, so can make adjacent spraying subassembly have more time buffering, reduces the risk that last spray gun 10 can't in time link up when last spray gun 10 sprays.
In particular, in some embodiments, the plurality of spray assemblies are equally spaced apart;
further, the interval time of the spraying starting time points of the adjacent spraying assemblies is equal;
further, the number of spray guns 10 of at least two groups of adjacent spray assemblies is equal, and the spacing distances between the spray guns 10 are equal;
in the above implementation process, the number of the spray guns 10 set by different spray assemblies is equal, and the interval distances of the spray guns 10 are equal, that is, the shapes and the areas of the spray surfaces formed by different spray assemblies are the same, so that the spray effect of a single spray assembly with a plurality of spray guns 10 can be further improved.
Further, in one embodiment, referring to fig. 2-3, taking four spray guns 10 as an example, the four spray guns 10 are respectively a first spray gun 11, a second spray gun 12, a third spray gun 13 and a fourth spray gun 14, the second spray gun 12, the first spray gun 11, the fourth spray gun 14 and the third spray gun 13 are sequentially arranged along the conveying direction of the material belt, the first spray gun 11 and the second spray gun 12 form a first coating layer 51 and a second coating layer 52 simultaneously, and then the third spray gun 13 and the fourth spray gun 14 form a third coating layer 53 and a fourth coating layer 54 shown in fig. 3 simultaneously.
Further, in other embodiments, the number of the spray guns 10 of the spraying assemblies is not necessarily equal, for example, the number of the spray guns 10 of one spraying assembly is two, the number of the spray guns 10 of the adjacent spraying assembly is three, and a worker can obtain a corresponding time interval according to the difference of the number of the spray guns 10 and the conveying speed of the material belt, so that the starting spraying time point of the spraying assembly is accurately controlled, and the spraying uniformity is ensured.
Specifically, in some embodiments, the first driving assembly 20 includes a first rotary driving member (not shown), a screw (not shown), and a connecting member (not shown) threadedly engaged with the screw (not shown);
further, the spraying assembly comprises a spray gun 10, the spray gun 10 is arranged on the connecting piece, the screw rod is arranged at the driving end of the first rotary driving piece, and the first rotary driving piece is suitable for driving the screw rod to rotate so as to drive the connecting piece to axially move along the screw rod;
further, the axial direction of the screw rod is parallel to the width direction of the material belt;
in the above scheme, the first rotary driving piece drives the screw rod to rotate, and then drives the connecting piece to move along the axial direction of the screw rod, namely along the width direction of the material belt, and the spray gun 10 is arranged on the connecting piece, so that the spray gun 10 is driven to move along the width direction of the material belt.
Further, the first rotary drive includes, but is not limited to, a servo motor;
in the above scheme, the adoption of the servo motor can enable the moving distance of the spray gun 10 to be more controllable, so that the spraying accuracy is improved.
Of course, the above is only one driving mode of the first driving assembly 20, and the specific driving mode is not limited in this embodiment.
Specifically, the spray assembly includes a spray gun 10; the mixing device is communicated with the spray gun 10 and is used for mixing to form a mixed material with static electricity and spraying the mixed material on a material belt through the spray gun 10;
it should be noted that the spray gun 10 and the mixing device belong to a relatively mature technology in the prior art, so the specific structure and the working principle thereof are not further described in detail in the present application.
In some embodiments, the above-mentioned material belt is understood as a material belt of a pole piece, that is, a pole piece may be formed after a process such as coating and rolling.
Specifically, in some embodiments, the conveying assembly includes a second rotary driving member (not shown), a conveying belt (not shown), a conveying table (not shown), and a plurality of driving rollers (not shown) disposed on the conveying table;
further, the driving rollers are arranged at intervals and define a conveying path for forming a material belt, the conveying belt is wound on the driving rollers, and the second rotary driving piece is suitable for driving at least one driving roller to rotate so as to drive the conveying belt to move along the moving path of the material belt;
in the above scheme, the conveyer belt is wound on a plurality of driving rollers, and the second rotary driving piece drives at least one driving roller to rotate so as to realize the movement of the conveyer belt, and the conveyer belt can play a supporting role on the driving rollers, so that a coating surface formed after spraying is smoother, and the coating quality is improved.
Specifically, in some embodiments, a vacuum adsorption mechanism is arranged on the side of the conveyor belt facing away from the material belt, and the vacuum adsorption mechanism is suitable for adsorbing the material belt on the conveyor belt;
in the scheme, the material belt can be attached to the conveying belt through the vacuum adsorption mechanism, so that the stability of material belt transfer is guaranteed, a favorable guarantee is provided for stable spraying of the subsequent material belt, and the spraying quality is effectively improved.
Referring to fig. 1, the present embodiment also provides a dry coating machine including the electrostatic spraying apparatus as described above.
Further, the device also comprises a preheating device 30 and a rolling device 40;
specifically, the electrostatic spraying device, the preheating device 30 and the rolling device 40 are sequentially arranged along the conveying direction of the material belt;
in the scheme, the material belt is preheated by the preheating device 30 after being sprayed by the electrostatic spraying equipment; taking the pole piece production as an example, the pre-heated coating layer is rolled in a current collector by a rolling device 40 to finally form the pole piece.
It should be noted that, the preheating device 30 and the rolling device 40 belong to a relatively mature technology in the prior art, so the specific structure and the working principle thereof will not be further described in this scheme.
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the present application in any way, and any simple modification, equivalent variations and modification made to the above embodiments according to the technical principles of the present application are within the scope of the technical solutions of the present application.
Claims (9)
1. An electrostatic spraying device, characterized in that: comprising
The conveying assembly is used for conveying the material belt;
the spraying components are arranged at intervals along the conveying paths of the material belts respectively, the spraying components are distributed at equal intervals, and adjacent spraying components are suitable for starting spraying at equal intervals;
and the first driving assembly (20) is connected with the spraying assembly and is suitable for driving the spraying assembly to move along the width direction of the material belt.
2. An electrostatic spraying device according to claim 1, characterized in that: at least one of the spray assemblies comprises a plurality of spray guns (10) which are arranged at equal intervals along the conveying path of the material belt, and a plurality of spray guns (10) in the same spray assembly are suitable for synchronous spraying.
3. An electrostatic spraying device according to claim 2, characterized in that: the spraying components are distributed at equal intervals;
adjacent said spray assemblies being adapted to initiate spraying at equal intervals;
at least two groups of spray guns (10) adjacent to the spray assembly are equal in number, and the spacing distances between the adjacent spray guns (10) are equal.
4. An electrostatic spraying device according to claim 1, characterized in that: the first driving assembly (20) comprises a first rotary driving piece, a screw rod and a connecting piece in threaded fit with the screw rod;
the spraying assembly comprises a spraying gun (10), the spraying gun (10) is arranged on the connecting piece, the screw rod is arranged at the driving end of the first rotary driving piece, and the first rotary driving piece is suitable for driving the screw rod to rotate so as to drive the connecting piece to axially move along the screw rod;
the screw rod is axially parallel to the width direction of the material belt.
5. An electrostatic spraying device according to claim 1, characterized in that: the spray assembly comprises a spray gun (10); the device also comprises a mixing device communicated with the spray gun (10), wherein the mixing device is used for mixing and forming a mixed material with static electricity and spraying the mixed material on the material belt through the spray gun (10).
6. An electrostatic spraying device according to claim 1, characterized in that: the material belt comprises a pole piece material belt.
7. An electrostatic spraying device according to any one of claims 1-6, characterized in that: the conveying assembly comprises a second rotary driving piece, a conveying belt, a conveying table and a plurality of driving rollers arranged on the conveying table;
the conveying rollers are arranged at intervals and define a conveying path for forming the material belt, the conveying belt is wound on the conveying rollers, and the second rotary driving piece is suitable for driving at least one conveying roller to rotate so as to drive the conveying belt to move along the moving path of the material belt.
8. A dry coater, characterized by: an electrostatic spraying device comprising any of claims 1-7.
9. The dry coater of claim 8, wherein: the device also comprises a preheating device (30) and a rolling device (40);
the electrostatic spraying equipment, the preheating device (30) and the rolling device (40) are sequentially arranged along the conveying direction of the material belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030244.5U CN220590397U (en) | 2023-04-28 | 2023-04-28 | Electrostatic spraying equipment and dry coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321030244.5U CN220590397U (en) | 2023-04-28 | 2023-04-28 | Electrostatic spraying equipment and dry coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220590397U true CN220590397U (en) | 2024-03-15 |
Family
ID=90174746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321030244.5U Active CN220590397U (en) | 2023-04-28 | 2023-04-28 | Electrostatic spraying equipment and dry coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220590397U (en) |
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2023
- 2023-04-28 CN CN202321030244.5U patent/CN220590397U/en active Active
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