Double-sided synchronous coating and dispensing device

Abstract

The utility model relates to the technical field of lithium battery coating equipment, in particular to a double-sided synchronous coating and dispensing device which comprises a rack and further comprises a first coating assembly, a first dispensing assembly, a second coating assembly and a second dispensing assembly which are arranged on the rack. The first coating assembly and the first dispensing assembly are used for coating and dispensing one side of a material; and the second coating assembly and the second dispensing assembly are used for coating and dispensing the other surface of the material. According to the double-sided synchronous coating and dispensing device, double-sided synchronous coating and dispensing of a material can be realized, the defect that the existing coating and dispensing processes are carried out by separating equipment is overcome, on one hand, the number of equipment is effectively reduced, the occupied space is reduced, on the other hand, the film running route is effectively reduced, the coating and dispensing quality is convenient to control, and the production efficiency is improved. And the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery coating equipment, and in particular to a double-sided synchronous coating and dispensing device. Background Art

[0002] Coating and dispensing processes are key processes in the lithium battery molding production process. According to different process requirements, special processing nodes are required before and after the coating process.

[0003] When the process requires double-sided coating and double-sided gluing of the material, conventional equipment needs to be equipped with separate coating devices and gluing devices, that is, the material is fed into the coating device, and the polymer is coated on both sides of the material by the coating device, and then the material is fed into the gluing device, and the glue is coated on both sides of the material by the gluing device. This coating and then gluing method, on the one hand, requires multiple production equipment to complete in batch production and will occupy a large amount of space, and on the other hand, the production equipment has more film routes and it is difficult to ensure product quality. Utility Model Content

[0004] In order to improve the problems of occupying space and being difficult to control quality existing in related technical equipment, the utility model provides a double-sided synchronous coating and dispensing device.

[0005] A double-sided synchronous coating and dispensing device comprises a frame, wherein the frame is provided with a first coating component, a first dispensing component, a second coating component and a second dispensing component; the first coating component and the first dispensing component face one side of a material; the second coating component and the second dispensing component face the other side of the material.

[0006] Further, the first coating assembly includes a first coating roller rotatably connected to the frame, and the first glue dispensing assembly includes a first glue dispensing roller rotatably connected to the frame;

[0007] The second coating assembly includes a second coating roller rotatably connected to the frame, and the second glue dispensing assembly includes a second glue dispensing roller rotatably connected to the frame.

[0008] Furthermore, it also includes a traction assembly, which includes a traction roller rotatably connected to the frame.

[0009] Furthermore, the traction assembly also includes a traction rubber pressure roller for cooperating with the traction roller, and the traction rubber pressure roller is arranged opposite to the traction roller.

[0010] Furthermore, cylinder structures for adjusting pressure are provided at both ends of the traction roller, and the traction roller moves toward or away from the traction rubber pressure roller.

[0011] Furthermore, a first coating auxiliary pressing roller is arranged opposite to the first coating roller, and an adjusting sliding structure is arranged at both ends of the first coating auxiliary pressing roller, and the first coating auxiliary pressing roller moves in a direction close to or away from the first coating roller.

[0012] Furthermore, corresponding sealing plate type scraper structures are arranged below the first coating roller and the second coating roller; and corresponding pressure plate type scraper structures are arranged on one side of the first glue dispensing roller and the second glue dispensing roller.

[0013] Furthermore, the first coating roller, the first glue dispensing roller, the second coating roller and the second glue dispensing roller are all ceramic anilox rollers; and the surfaces of the ceramic anilox rollers are provided with a plurality of tiny recessed holes for transferring materials.

[0014] Furthermore, a recovery trough for receiving dropped slurry is provided below the first coating roller and the second coating roller; a recovery trough for receiving dropped glue is provided below the first glue dispensing roller and the second glue dispensing roller.

[0015] Furthermore, it also includes a material pressing component, which includes a blowing nozzle for assisting the material to abut against the second glue dispensing roller.

[0016] Furthermore, the blowing air nozzle is located beside the second glue dispensing roller and faces the material, and the side of the blowing air nozzle facing the material has a plurality of ventilation mesh holes.

[0017] The utility model has the following advantages:

[0018] 1. The utility model is a double-sided synchronous coating and dispensing device, which arranges a first coating component, a first dispensing component, a second coating component and a second dispensing component on a frame. After the material enters the coating and dispensing device, it will enter the first coating component and the first dispensing component. The first coating component and the first dispensing component coat and dispense glue on one side of the material. Then the material enters the second coating component and the second dispensing component. The second coating component and the second dispensing component coat and dispense glue on the other side of the material, thereby achieving coating and dispensing of both sides of the material. On the one hand, it effectively reduces the number of equipment and the space occupied. On the other hand, it effectively reduces the film route and facilitates the control of coating and dispensing quality.

[0019] 2. The double-sided synchronous coating and dispensing device of the utility model is provided with a material pressing component. A material pressure is applied to the material by the blowing nozzle to continuously approach the second dispensing roller so that the material can be pressed against the second dispensing roller for dispensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of a double-sided synchronous coating and dispensing device according to the first embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of a film-moving device for double-sided synchronous coating and dispensing according to an embodiment of the present application;

[0023] Figure 3 A cross-sectional schematic diagram of a double-sided synchronous coating and dispensing device according to an embodiment of the present application;

[0024] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0025] Figure 5 for Figure 3 A partial enlarged schematic diagram of part B;

[0026] Figure 6 This is a structural diagram of a double-sided synchronous coating and dispensing device according to the second embodiment of the present application.

[0027] Figure 7 for Figure 4 A partial enlarged schematic diagram of part C in the middle.

[0028] Description of reference numerals:

[0029] 1. Frame; 11. First pop-up structure; 2. Traction assembly; 21. Traction roller; 211. Cylinder structure; 22. First adjustment member; 221. First adjustment roller; 222. First adjustment cylinder; 23. Second adjustment member; 231. Second adjustment roller; 232. Second adjustment cylinder; 3. First coating assembly; 31. First coating roller; 32. First coating auxiliary pressure roller; 33. Adjusting sliding structure; 34. First sealing plate type scraper structure; 4. First dispensing assembly; 41. First dispensing roller; 42. First pressure plate type scraper structure; 5. Second coating assembly; 51. Second coating roller; 52. Second sealing plate type scraper structure; 6. Second dispensing assembly; 61. Second dispensing roller; 62. Second pressure plate type scraper structure; 7. Material pressing assembly; 71. Material blowing nozzle; 711. Ventilation mesh. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Embodiment 1

[0037] Reference Figures 1 to 5 A double-sided synchronous coating and dispensing device includes a frame 1, and also includes a traction component 2, a first coating component 3, a first dispensing component 4, a second coating component 5 and a second dispensing component 6 arranged on the frame 1. The traction component 2 is used to pull the material so that the material is introduced into the first coating component 3 and the first dispensing component 4, the first coating component 3 and the first dispensing component 4 are used to coat and dispense glue on one side of the material, the second coating component 5 and the second dispensing component 6 are used to coat and dispense glue on the other side of the material, and the material is double-sided coated and dispensed after passing through the above components.

[0038] Specifically, the frame 1 is used to support each component. The traction component 2 includes a traction roller 21 rotatably connected to the frame 1. The traction roller 21 is located in the lower middle part of the frame 1. The traction roller 21 is opposite to the traction rubber pressure roller, that is, the traction roller 21 and the traction rubber pressure roller are opposite to each other. The traction roller 21 and the traction rubber pressure roller cooperate to clamp and transport the material. At the same time, cylinder structures 211 for adjusting the pressure are provided at both ends of the traction roller 21. Under the action of the cylinder structure 211, the traction roller 21 moves toward or away from the traction rubber pressure roller, thereby adjusting the pressure and tension on the material.

[0039] The first coating assembly 3 includes a first coating roller 31 rotatably connected to the frame 1, the first coating roller 31 is located in the middle of the frame 1 and is provided with a first coating recovery trough for receiving dropped coating at the bottom. The first glue dispensing assembly 4 includes a first glue dispensing roller 41 rotatably connected to the frame 1, the first glue dispensing roller 41 is located obliquely above the first coating roller 31, and is provided with a first glue dispensing recovery trough for receiving dropped adhesive and ceramic slurry at the bottom of the first coating roller 31 and the first glue dispensing roller 41. The first coating roller 31 and the first glue dispensing roller 41 face the material.

[0040] At the same time, the first coating roller 31 is provided with a first coating auxiliary pressure roller 32 that cooperates with it. The first coating auxiliary pressure roller 32 is provided with an adjustment sliding structure 33 at both ends. The adjustment sliding structure 33 is slidably connected to the frame 1. The first coating auxiliary pressure roller 32 moves toward or away from the first coating roller 31 under the drive of the adjustment sliding structure 33 to adjust the pressure and tension applied to the material. The first dispensing roller 41 is provided with a first dispensing auxiliary pressure roller that cooperates with it. After passing through the traction roller 21, the material first enters the first coating roller 31. With the cooperation of the first coating auxiliary pressure roller 32, the first coating roller 31 coats the polymer on one side of the material; then the material immediately enters the first dispensing roller 41. Similarly, with the cooperation of the first dispensing auxiliary pressure roller, the first dispensing roller 41 dispenses the glue or ceramic slurry on the same side of the material. At this time, the coating and dispensing of one side of the material are completed.

[0041] In order to ensure the coating effect of the material, the traction assembly 2 also includes a first adjustment member 22 for adjusting the wrap angle of the coating roller. The first adjustment member 22 is arranged on the frame 1 and is located between the traction roller 21 and the first coating roller 31. The first adjustment member 22 is used to adjust the wrap angle of the material entering the first coating roller 31, thereby adjusting the coating effect of the first coating roller 31. Specifically, the first adjustment member 22 includes a first adjustment roller 221 arranged on the frame 1 and a first adjustment cylinder 222 for driving the first adjustment roller 221. The piston end of the first adjustment cylinder 222 faces upward, and the material abuts against the side of the first adjustment roller 221 away from the first adjustment cylinder 222. By setting the first adjustment member 22, when it is necessary to adjust the tension, the first adjustment roller 221 can be adjusted by simply driving the first adjustment cylinder 222 to move the first adjustment roller 221 toward or away from the first adjustment cylinder 222. It is understandable that the orientation of the first adjustment roller 221 and the first adjustment cylinder 222 can be changed, that is, the piston end of the first adjustment cylinder 222 faces downward, and the material abuts against the side of the first adjustment roller 221 close to the first adjustment cylinder 222, and the coating roller wrap angle can also be adjusted.

[0042] After the material passes through the first coating component 3 and the first glue dispensing component 4, one side of the material has been coated with polymer and glue. During the coating and glue dispensing process on the other side of the material, if the side of the material coated with polymer and glue is touched, it will cause damage. In order to avoid damage to the side of the material and to ensure the second coating effect, the traction component 2 also includes a second adjustment member 23, which is arranged on the frame 1 and located between the first glue dispensing roller 41 and the second coating roller 51. The second adjustment member 23 is used to adjust the wrap angle of the material entering the second coating roller 51, thereby adjusting the coating effect of the second coating roller 51.

[0043] The second coating assembly 5 and the second glue dispensing assembly 6 are arranged above the first glue dispensing assembly 4, and the second coating assembly 5 includes a second coating roller 51 rotatably connected to the frame 1, and the second glue dispensing assembly 6 includes a second glue dispensing roller 61 rotatably connected to the frame 1. Similarly, the second coating roller 51 and the second glue dispensing roller 61 face the other side of the material, and a second coating recovery trough for receiving dropped coating material is arranged below the second coating roller 51, and a second glue dispensing recovery trough for receiving dropped glue and ceramic slurry is arranged below the second glue dispensing roller 61.

[0044] In this embodiment, in order to ensure the coating and dispensing effects, the first coating roller 31, the first dispensing roller 41, the second coating roller 51 and the second dispensing roller 61 are ceramic anilox rollers; the surfaces of the first coating roller 31, the first dispensing roller 41, the second coating roller 51 and the second dispensing roller 61 are all provided with a number of tiny recessed holes for transferring materials.

[0045] At the same time, in order to make the coating and dispensing device compact and easy to adapt to subsequent processes, the second coating roller 51 and the second dispensing roller 61 are located above the frame 1 and are at substantially the same horizontal height, and the second dispensing roller 61 can be precisely adjusted up and down as a whole, so that the second dispensing roller 61 has a slight wrap angle to achieve the required dispensing effect, and the material abuts against the second coating roller 51 and the second dispensing roller 61. After passing through the first dispensing assembly 4, the material enters the second coating assembly 5 and the second dispensing assembly 6, the second coating roller 51 coats the material, and the second dispensing roller 61 dispenses the material.

[0046] The second adjustment member 23 includes a second adjustment roller 231 disposed on the frame 1 and a second adjustment cylinder 232 for driving the second adjustment roller 231. The piston end of the second adjustment cylinder 232 is vertically upward, and the material abuts against the side of the second adjustment roller 231 close to the second adjustment cylinder 232. By providing the second adjustment member 23, on the one hand, the transportation direction of the material is adjusted so that the other side of the material can cooperate with the second coating and dispensing assembly, and on the other hand, by driving the second adjustment cylinder 232 to drive the second adjustment roller 231 to move toward or away from the second adjustment cylinder 232, the tension of the material can be ensured to cooperate with subsequent coating and dispensing.

[0047] In addition, in order to separate the material from the coating roller in time when there is a problem with coating, the first coating auxiliary pressure roller 32 is slidably connected to the frame 1, and a first spring-opening structure 11 for driving the first coating auxiliary pressure roller 32 to move is provided on the side of the frame 1 away from the first coating auxiliary pressure roller 32. In this embodiment, the first spring-opening structure 11 is a cylinder, and the first spring-opening structure 11 is arranged on the side wall of the frame 1, and the first coating auxiliary pressure roller 32 is connected to the piston end of the cylinder. When there is a problem with coating, the first spring-opening structure 11 drives the first coating auxiliary pressure roller 32 to move upward so that the material is separated from the first coating roller 31; and for the second coating roller 51, the second adjustment cylinder 232 drives the second adjustment roller 231 to move upward so that the material is separated from the second coating roller 51. It should be noted that a driving structure for driving the first dispensing roller 41 and the second dispensing roller 61 can be set according to actual needs, so that when there is a problem with dispensing, the first dispensing roller 41 and the second dispensing roller 61 can be separated from the material in time.

[0048] The first coating roller 31 and the second coating roller 51 are provided with respective corresponding sealing plate scraper structures below. In the present embodiment, the first coating roller 31 is provided with a first sealing plate scraper structure 34 below. The first sealing plate scraper structure 34 is installed in the first coating recovery trough. The first coating recovery trough is slidably connected to the frame 1 and driven by the cylinder. Under the drive of the cylinder, the first coating recovery trough drives the first sealing plate scraper structure 34 to move toward or away from the first coating roller 31. The second coating roller 51 is provided with a second sealing plate scraper structure 52 below. The second sealing plate scraper structure 52 is installed in the second coating recovery trough. The second coating recovery trough is slidably connected to the frame 1 and driven by the cylinder. Under the drive of the cylinder, the second coating recovery trough drives the second sealing plate scraper structure 52 to move toward or away from the second coating roller 51.

[0049] The first glue dispensing roller 41 and the second glue dispensing roller 61 are also provided with corresponding pressure plate scraper structures on one side. In this embodiment, the first glue dispensing roller 41 is provided with a plurality of first pressure plate scraper structures 42 driven by a cylinder, and the second glue dispensing roller 61 is provided with a plurality of second pressure plate scraper structures 62 driven by a cylinder. By providing the scraper structure, the excess slurry on the roller can be scraped off to ensure the coating and dispensing quality.

[0050] Embodiment 2

[0051] The difference between the second embodiment and the first embodiment is that it further comprises a material pressing component 7 .

[0052] Reference Figure 6 and Figure 7Specifically, since the second coating roller 51 and the second glue dispensing roller 61 are substantially at the same horizontal height, the material may be separated from the second glue dispensing roller 61 or the contact with the second glue dispensing roller 61 is not tight enough when passing through the second glue dispensing roller 61, resulting in the second glue dispensing roller 61 not dispensing glue on the material or the glue dispensing amount not meeting the standard. To this end, the double-sided coating and glue dispensing device also includes a material pressing component 7, and the material pressing component 7 includes a blowing nozzle 71 for assisting the material to abut against the second glue dispensing roller 61. The blowing nozzle 71 is located above the second glue dispensing roller 61 and faces the material. The blowing nozzle 71 has a plurality of ventilation meshes 711 on the side facing the material, and the plurality of ventilation meshes 711 are evenly distributed along the length direction of the blowing nozzle 71. The blowing nozzle 71 will continuously blow air to the material, thereby applying a pressure close to the second glue dispensing roller 61 to the material so that the material abuts against the second glue dispensing roller 61, thereby achieving stable glue dispensing of the material by the second glue dispensing roller 61.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A double-sided synchronous coating and dispensing device, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a first coating component (3), a first glue dispensing component (4), a second coating component (5) and a second glue dispensing component (6); the first coating component (3) and the first glue dispensing component (4) face one side of the material; and the second coating component (5) and the second glue dispensing component (6) face the other side of the material.

2. A double-sided synchronous coating and dispensing device according to claim 1, characterized in that: The first coating assembly (3) comprises a first coating roller (31) rotatably connected to the frame (1), and the first glue dispensing assembly (4) comprises a first glue dispensing roller (41) rotatably connected to the frame (1); The second coating assembly (5) comprises a second coating roller (51) rotatably connected to the frame (1), and the second glue dispensing assembly (6) comprises a second glue dispensing roller (61) rotatably connected to the frame (1).

3. A double-sided synchronous coating and dispensing device according to claim 1, characterized in that: It also comprises a traction assembly (2), wherein the traction assembly (2) comprises a traction roller (21) rotatably connected to the frame (1).

4. A double-sided synchronous coating and dispensing device according to claim 3, characterized in that: The traction assembly (2) further comprises a traction rubber pressure roller for cooperating with the traction roller (21), and the traction rubber pressure roller is arranged opposite to the traction roller (21).

5. A double-sided synchronous coating and dispensing device according to claim 4, characterized in that: Cylinder structures (211) for adjusting pressure are arranged at both ends of the traction roller (21), and the traction roller (21) moves in a direction approaching or moving away from the traction rubber pressure roller.

6. A double-sided synchronous coating and dispensing device according to claim 2, characterized in that: A first coating auxiliary pressure roller (32) is arranged opposite to the first coating roller (31), and adjustment sliding structures (33) are arranged at both ends of the first coating auxiliary pressure roller (32), so that the first coating auxiliary pressure roller (32) moves in a direction close to or away from the first coating roller (31).

7. The double-sided synchronous coating and dispensing device according to claim 2, characterized in that: A corresponding sealing plate type scraper structure is arranged below the first coating roller (31) and the second coating roller (51); and a corresponding pressing plate type scraper structure is arranged on one side of the first glue dispensing roller (41) and the second glue dispensing roller (61).

8. A double-sided synchronous coating and dispensing device according to claim 2 or 7, characterized in that: The first coating roller (31), the first glue dispensing roller (41), the second coating roller (51) and the second glue dispensing roller (61) are all ceramic anilox rollers; the surfaces of the ceramic anilox rollers are all provided with a plurality of tiny recessed holes for transferring materials.

9. The double-sided synchronous coating and dispensing device according to claim 8, characterized in that: A recovery groove for receiving dropped slurry is provided below the first coating roller (31) and the second coating roller (51); and a recovery groove for receiving dropped glue is provided below the first glue dispensing roller (41) and the second glue dispensing roller (61).

10. The double-sided synchronous coating and dispensing device according to claim 2, characterized in that: It also includes a material pressing assembly (7), wherein the material pressing assembly (7) includes a material blowing nozzle (71) for assisting the material to abut against the second glue dispensing roller (61).

11. A double-sided synchronous coating and dispensing device according to claim 10, characterized in that: The blowing air nozzle (71) is located beside the second glue dispensing roller (61) and faces the material, and the blowing air nozzle (71) has a plurality of ventilation mesh holes (711) on the side facing the material.

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