CN221063361U

CN221063361U - Coating apparatus

Info

Publication number: CN221063361U
Application number: CN202322853203.2U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Jiangsu Hydrogen Guide Intelligent Equipment Co ltd; Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Jiangsu Hydrogen Guide Intelligent Equipment Co ltd; Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-06-04
Anticipated expiration: 2033-10-23

Abstract

The application relates to coating equipment, and belongs to the technical field of battery manufacturing. The coating apparatus includes: the first winding and unwinding device is used for providing a film material belt; the coating device is used for coating the surface of the film material belt to form a composite material belt, and the composite material belt comprises the film material belt and a first coating layer on the surface of the film material belt; the second winding and unwinding device is used for winding the composite material belt; the drying device comprises a conveying belt and a drying mechanism, wherein two ends of the conveying belt are respectively arranged corresponding to the coating device and the second winding and unwinding device, the conveying belt is used for conveying the composite material belt to the second winding and unwinding device, and the drying mechanism is used for drying the composite material belt. The coating equipment has higher coating efficiency and compact structure.

Description

Coating apparatus

Technical Field

The application relates to the technical field of battery manufacturing, in particular to coating equipment.

Background

With the rapid development of the electric automobile field, the power battery industry is also rapidly developed, and higher requirements are also put forward on the power performance and the safety performance of the power battery. The fuel cell has the advantages of light pollution, light noise, high power generation efficiency and the like, and is widely applied to the field of electric automobiles.

CCM (catalyst coated membrane) is an important component for preparing the membrane electrode of the proton exchange membrane fuel cell. The preparation method of the transfer film and the proton exchange film roll-to-roll automatic coating has the advantages of high efficiency and stability, however, how to improve the coating efficiency is always a problem to be solved in industry.

Disclosure of utility model

Therefore, the application provides the coating equipment which has higher coating efficiency and compact structure.

The coating apparatus of some embodiments of the present application includes: the first winding and unwinding device is used for providing a film material belt; the coating device is used for coating the surface of the film material belt to form a composite material belt, and the composite material belt comprises the film material belt and a first coating layer on the surface of the film material belt; the second winding and unwinding device is used for winding the composite material belt; the drying device comprises a conveying belt and a drying mechanism, wherein two ends of the conveying belt are respectively arranged corresponding to the coating device and the second winding and unwinding device, the conveying belt is used for conveying the composite material belt to the second winding and unwinding device, and the drying mechanism is used for drying the composite material belt.

According to some embodiments of the application, the drying mechanism comprises a plurality of sections of drying units along a conveying direction of the conveying belt, and the conveying belt sequentially passes through the plurality of sections of drying units.

According to some embodiments of the application, the conveyor belt conveys the composite strip in a linear direction.

According to some embodiments of the application, the coating device comprises: a coating roller for receiving the film web; and the coating mechanism is positioned at the upstream of the drying mechanism, is arranged corresponding to the coating roller and is used for coating the surface of the film material belt to form a first coating.

According to some embodiments of the application, the surface of the coating roll has vacuum suction holes.

According to some embodiments of the application, the first winding and unwinding device comprises: the first unreeling mechanism is used for unreeling a film material, and the film material comprises a first protective film material belt and a film material belt which are arranged in a laminated manner; the first stripping roller is arranged corresponding to the coating roller and is used for stripping the first protective film material belt and the film material belt and guiding the film material belt to be attached to the coating roller; and the first winding mechanism is positioned at the downstream of the first stripping roller and is used for winding the first protective film material belt.

According to some embodiments of the application, the coating apparatus further comprises a mat winding and unwinding device comprising: the cushion unreeling mechanism is used for unreeling the cushion material belt; and the cushion material guiding roller is arranged corresponding to the coating roller and is positioned at the upstream of the first stripping roller and used for guiding the cushion material belt to be attached to the coating roller before the film material belt is attached to the coating roller.

According to some embodiments of the application, the film material tape comprises a film material tape body and a second coating layer coated on one side of the film material tape body, the first coating layer is coated on the other side of the film material tape body, and the first winding and unwinding device further comprises: the first surface density detection mechanism is positioned at the downstream of the first unreeling mechanism and is used for detecting the surface density of the second coating of the film material belt; and the first visual detection mechanism is positioned at the downstream of the first unreeling mechanism and is used for detecting the outline area of the second coating of the film material belt.

According to some embodiments of the application, the second winding and unwinding device comprises: the winding roller is used for receiving the composite material belt conveyed by the conveying belt; the second stripping roller is arranged corresponding to the winding roller and is used for stripping the composite material belt from the winding roller; and the second winding mechanism is positioned at the downstream of the second stripping roller and is used for winding the composite material belt.

According to some embodiments of the application, the second winding and unwinding device further comprises: the second unreeling mechanism is located at the upstream of the second stripping roller and used for unreeling a second protective film material belt, and the second reeling mechanism is used for reeling the composite material belt and the second protective film material belt which are arranged in a laminated mode.

According to some embodiments of the application, the second winding and unwinding device further comprises: a second areal density detection mechanism positioned downstream of the second stripping roller and used for detecting the areal density of at least the first coating of the film material belt; and a second visual inspection mechanism positioned downstream of the second stripping roller for inspecting the contour area of at least the first coating of the composite strip.

According to some embodiments of the application, the coating apparatus further comprises a mat winding and unwinding device comprising: the cushion stripping roller is arranged corresponding to the winding roller and is positioned at the downstream of the second stripping roller and is used for stripping the cushion material belt from the winding roller; and the cushion material rolling mechanism is positioned at the downstream of the cushion material stripping roller and is used for rolling the cushion material belt.

Compared with the prior art, the application has the beneficial effects that:

In the coating equipment provided by the embodiment of the application, the film material belt passes through the coating device and is coated to form the first coating, and enters the drying device after leaving the coating device, and the drying mechanism dries the composite material belt on the conveying belt in the process that the conveying belt conveys the composite material belt to the second winding and unwinding device. Since the drying process of the composite material belt is independent of the coating device, on one hand, the coating device can be allowed to increase the coating amount per unit time, the conveying speed of the material belt and the arrangement length of the conveying belt, so that the coating efficiency is improved; on the other hand, the length of the composite material belt passing through the coating device can be reduced, so that the appearance volume of the coating device is reduced, and the coating equipment is compact in structure.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a coating apparatus according to an embodiment of the present application;

Fig. 2 is a schematic structural diagram of a drying device of a coating apparatus according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a first winding and unwinding device and a coating device of a coating apparatus according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a second winding and unwinding device of the coating apparatus according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a film material belt corresponding to a coating apparatus according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of a composite material belt corresponding to a coating apparatus according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a film material corresponding to a coating apparatus according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a finished product belt corresponding to the coating apparatus according to the embodiment of the present application.

Icon: 100-coating equipment; 110-a first winding and unwinding device; 111-a first unreeling mechanism; 112-a first stripping roller; 113-a first winding mechanism; 114-a first visual inspection mechanism; 115-a first areal density detection mechanism; 116-a first deviation rectifying mechanism; 117-a second deviation correcting mechanism; 118-a first static-removing mechanism; 119-a coil diameter detection mechanism; 120-coating device; 121-a coating roller; 122-coating mechanism; 130-a drying device; 131-a conveyor belt; 1311-a conveyor belt body; 1312-a first roller; 1313-a second roller; 132-a drying mechanism; 1321—a wind box; 1322-a negative pressure chamber; 140-a second winding and unwinding device; 141-a wind-up roll; 142-a second stripping roller; 143-a second winding mechanism; 144-a second unreeling mechanism; 145-a second visual inspection mechanism; 146-a second areal density detection mechanism; 147-a third deviation correcting mechanism; 148-a fourth deviation rectifying mechanism; 149-a second static electricity removing mechanism; 150-a cushion material winding and unwinding device; 151-a mat unreeling mechanism; 152-pad guide rollers; 153-pad stripping roller; 154-a cushion material rolling mechanism; 155-a third static eliminating mechanism; 156-a fifth deviation rectifying mechanism; 161-film taping mechanism; 162-protective film tape splicing mechanism; 163-pad tape-receiving mechanism; 200-a composite material belt; 210-film material belt; 211-a film material belt body; 220-a first coating; 230-a second coating; 300-film material; 310-a first protective film material tape; 400-a finished product material belt; 410-a second protective film material tape; 500-strips of mat material.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the related art, one of the mainstream coating processes is to introduce a thin film material strip such as a proton film or a transfer film into a coating roller of a coating device, a coating mechanism of the coating device coats the surface of the thin film material strip to form a composite material strip, the composite material strip is attached to the surface of the coating roller, the coating roller continuously rotates, a drying process is performed after the coating process is completed, and the dried composite material strip leaves the coating roller and enters a winding process.

The inventors have found that the time required for the drying process is significantly longer than the time required for the coating process, since both the coating process and the drying process are performed at the coating roller, it is necessary to maintain the composite tape on the coating roller for a sufficient time in order to secure the drying quality of the composite tape. If the diameter of the coating roller is increased, the coating roller has large weight and occupies large space; if the rotating speed of the coating roller is reduced, the conveying speed of the material belt is lower, the functions of the coating mechanism cannot be fully exerted, the winding speed of the composite material belt is lower, and the coating efficiency is also lower.

Based on the above thought, the application provides a novel coating device which can relieve the above phenomenon, has higher coating efficiency and compact structure.

As shown in fig. 1, a coating apparatus 100 of some embodiments of the present application includes a first winding and unwinding device 110, a coating device 120, a drying device 130, and a second winding and unwinding device 140. The first winding and unwinding device 110 is used for providing a film material belt 210, the coating device 120 is used for coating the surface of the film material belt 210 to form a composite material belt 200, the composite material belt 200 comprises the film material belt 210 and a first coating 220 on the surface of the film material belt 210, and the second winding and unwinding device 140 is used for winding the composite material belt 200. The drying device 130 includes a conveying belt 131 and a drying mechanism 132, two ends of the conveying belt 131 are respectively disposed corresponding to the coating device 120 and the second winding and unwinding device 140, the conveying belt 131 is used for conveying the composite material belt 200 to the second winding and unwinding device 140, and the drying mechanism 132 is used for drying the composite material belt 200.

In some embodiments of the present application, as shown in fig. 5, the film strip 210 includes a film strip body 211 and a second coating 230 applied to one side of the film strip body 211, the first coating 220 is applied to the other side of the film strip body 211, i.e., one side of the film strip 210 has been coated to form the second coating 230, and the coating apparatus 100 is used to coat the other side of the film strip 210 to form the first coating 220. As shown in fig. 6, the composite tape 200 is a CCM film, and the composite tape 200 includes a thin film tape 210 and a first coating 220 formed by coating the other side, the first coating 220 being an anode material, the second coating 230 being a cathode material, and coated areas of the first coating 220 and the second coating 230 being aligned.

In other embodiments, the film material belt 210 may be a proton membrane that has not yet been coated, and the first coating 220 is a cathode material; alternatively, the film web 210 may be a transfer film.

In the coating apparatus 100 according to the embodiment of the present application, the thin film material belt 210 passes through the coating device 120 and completes the coating to form the first coating 220, and enters the drying device 130 after leaving the coating device 120, and the drying mechanism 132 dries the composite material belt 200 on the conveying belt 131 in the process that the conveying belt 131 conveys the composite material belt 200 to the second winding and unwinding device 140. Since the drying process of the composite web 200 does not depend on the coating device 120, on the one hand, it is possible to allow an increase in the coating amount per unit time of the coating device 120, an increase in the conveying speed of the web, and an increase in the arrangement length of the conveyor belt 131, thereby improving the coating efficiency; on the other hand, the length of the composite material strip 200 passing through the coating device 120 can be reduced, thereby reducing the external volume of the coating device 120 and making the coating apparatus 100 compact.

The specific configuration of each device inside the coating apparatus 100 is specifically described below.

As shown in fig. 2, the conveyor belt 131 conveys the composite material belt 200 along the first direction X, and two ends of the conveyor belt 131 along the first direction X are respectively a first end and a second end, where the first end corresponds to the coating device 120, and the second end corresponds to the second winding and unwinding device 140.

Specifically, the conveyor belt 131 includes a conveyor belt body 1311, a first roller 1312, and a second roller 1313, the first roller 1312 and the second roller 1313 supporting the conveyor belt body 1311 in common, the first roller 1312 being located at a first end of the conveyor belt 131 and disposed on the same side as the coating device 120, and the second roller 1313 being located at a second end of the conveyor belt 131 and disposed on the same side as the second winding and unwinding device 140.

In some embodiments of the present application, the drying mechanism 132 includes a plurality of sections of drying units (not shown) along the conveying direction of the conveyor belt 131, and the conveyor belt 131 sequentially passes through the plurality of sections of drying units.

The conveyor belt 131 conveys the composite material belt 200 along the first direction X, the multiple sections of drying units are arranged at intervals along the first direction X, and the conveyor belt 131 sequentially passes through the multiple sections of drying units. The temperature and the air pressure of each drying unit can be independently controlled, so that sectional drying is realized, and the cracking phenomenon of the composite material belt 200 in the drying process is reduced.

Specifically, the drying mechanism 132 includes an oven and a fan box 1321, wherein a partition is provided in the oven to partition the interior of the oven into a plurality of drying units (not shown in the figure) along the first direction X, the fan box 1321 is connected to an air supply device, the fan box 1321 has a plurality of air supply openings, and air with different temperatures and different air speeds is supplied to each drying unit through an air valve or the like. The drying unit is internally provided with a negative pressure air port, and a negative pressure cavity 1322 is formed in the drying unit through timely air suction, so that the internal air flow fully flows, and the composite material belt 200 is effectively dried.

In other embodiments, the drying mechanism 132 may also be other heat sources extending along the first direction X, and the drying mechanism 132 continuously dries the first coating 220 of the composite strip 200 from the outside of the conveyor 131.

In some embodiments of the present application, the conveyor belt 131 is a vacuum adsorption conveyor belt, and the composite material belt 200 is attached to the surface of the conveyor belt 131 by adopting a vacuum adsorption mode; in other embodiments, the composite strip 200 may also be attached to the conveyor belt 131 by tension control.

In some embodiments of the present application, the conveyor belt 131 conveys the composite strip 200 in a straight direction. That is, the first direction X is a straight direction, and the composite material tape 200 is not bent during the drying process by the drying mechanism 132.

Through the arrangement mode, the composite material belt 200 can be kept in a flat state all the time in the drying process, the possibility that the composite material belt 200 is dried under the condition of wrinkling is reduced, and the forming quality of the composite material belt 200 is improved.

In other embodiments, the path of the composite web 200 through the drying mechanism 132 may also be a bending extension.

As shown in fig. 1, in some embodiments of the present application, the coating apparatus 120 includes a coating roller 121 and a coating mechanism 122, the coating mechanism 122 is located upstream of the drying mechanism 132, the coating roller 121 is configured to receive the film strip 210, and the coating mechanism 122 is disposed corresponding to the coating roller 121 and is configured to apply a first coating 220 to a surface of the film strip 210.

By the arrangement, the swelling phenomenon of the film in the process of forming the first coating 220 by the coating mechanism 122 on the surface of the film material belt 210 can be relieved, and the coating quality is good.

In some embodiments of the application, coating mechanism 122 is a die that employs slot coating; in other embodiments, the coating mechanism 122 may be other forms of coating mechanisms.

In some embodiments of the present application, the surface of the applicator roll 121 has vacuum suction holes. The film material belt 210 or the composite material belt 200 is attached to the surface of the coating roller 121 by adopting a vacuum adsorption mode, so that the film material belt 210 or the composite material belt 200 can be attached to the surface of the coating roller 121 well, and the phenomenon of wrinkling is reduced.

In other embodiments, the film web 210 or the composite web 200 may be attached to the surface of the coating roller 121 by other means, such as by tension control or the like; the coating apparatus 120 may also employ a coating linear conveyor mechanism to convey the film web 210.

The first unwind apparatus 110 is located upstream of the coating apparatus 120 for providing the coating apparatus 120 with a film web 210.

It will be appreciated that, as shown in fig. 7, after the film web 210 is prepared, in order to reduce the risk of breakage of the film web 210, a first protective film web 310 is typically mixed during the winding process to form the film 300. In the process of unreeling the film web 210, the first protective film web 310 is also separated from the film web 210, and the film web 210 is coated.

As shown in fig. 1 and 3, in some embodiments of the present application, the first winding and unwinding device 110 includes a first unwinding mechanism 111, a first peeling roller 112, and a first winding mechanism 113. The first unreeling mechanism 111 is used for unreeling the film 300, and the film 300 comprises a first protective film material belt 310 and a film material belt 210 which are stacked; the first peeling roller 112 is disposed corresponding to the coating roller 121, and is used for peeling the first protective film material tape 310 and the film material tape 210, and guiding the film material tape 210 to be attached to the coating roller 121; the first winding mechanism 113 is located downstream of the first peeling roller 112 and is used for winding the first protective film material tape 310.

Downstream of the first peel roller 112 refers to the area of the first protective film web 310 after separation from the film web 210. The first winding mechanism 113 is used for winding the first protective film material tape 310 peeled from the film material tape 210, so that the coating environment can be maintained clean, and the first protective film material tape 310 can be recycled.

In other embodiments, in the case that the film 300 does not include the first protective film material tape 310, the first winding and unwinding device 110 may not include the first winding mechanism 113.

As shown in fig. 5 and 6, the film tape 210 includes a film tape body 211 and a second coating 230 applied to one side of the film tape body 211, and a first coating 220 is applied to the other side of the film tape body 211.

As shown in fig. 3, in some embodiments of the present application, the first unwind apparatus 110 further comprises a first visual detection mechanism 114 and a first areal density detection mechanism 115. The first visual inspection mechanism 114 and the first areal density inspection mechanism 115 are both located downstream of the first unwind mechanism 111, the first visual inspection mechanism 114 being configured to inspect the profile area of the second coating 230 of the film web 210, the first areal density inspection mechanism 115 being configured to inspect the areal density of the second coating 230 of the film web 210.

By detecting the state of the second coating 230, the conveying beat of the film material belt 210 can be calculated, and further the unreeling speed and the rotating speed of the coating roller 121 can be adjusted, so that the coating mechanism 122 can be ensured to coat and form the first coating 220 according to the preset beat, and the two sides of the film material belt body 211 of the first coating 220 and the second coating 230 are opposite to each other Ji Yubao.

As an example, the first areal density detection mechanism 115 is closer to the first unwind mechanism 111, and the film web 210 passes through the first areal density detection mechanism 115 and the first visual detection mechanism 114 in sequence during unwinding.

Further, the first winding and unwinding device 110 further includes a series of auxiliary mechanisms, such as a first deviation rectifying mechanism 116, a second deviation rectifying mechanism 117, a first static electricity removing mechanism 118, a roll diameter detecting mechanism 119, a film tape splicing mechanism 161, a protective film tape splicing mechanism 162, and the like, so as to safely and reliably provide the film tape 210 to the coating device 120 and recover the first protective film tape 310.

Specifically, the first deviation rectifying mechanism 116 is disposed near the first unreeling mechanism 111, and is used for rectifying the film material belt 210 unreeled by the first unreeling mechanism 111; the second deviation rectifying mechanism 117 is disposed near the first winding mechanism 113, and is used for rectifying the first protective film material strip 310 entering the first winding mechanism 113. The first static electricity removing mechanism 118 is disposed near the first peeling roller 112 for performing a static electricity removing process on the film web 210 to be passed through the first peeling roller 112. The two winding diameter detection mechanisms 119 are respectively used for detecting the winding diameters of the material winding at the first unreeling mechanism 111 and the first reeling mechanism 113; correspondingly, the film tape splicing mechanism 161 is used for splicing the film material tape 210, and the protective film tape splicing mechanism 162 is used for splicing the first protective film material tape 310.

The second winding and unwinding device 140 is located downstream of the coating device 120 for receiving and winding the composite web 200.

As shown in fig. 1 and 4, in some embodiments of the present application, the second winding and unwinding device 140 includes a winding roller 141, a second peeling roller 142, and a second winding mechanism 143. The wind-up roller 141 is configured to receive the composite tape 200 conveyed by the conveyor belt 131, and the second peeling roller 142 is disposed corresponding to the wind-up roller 141 and configured to peel the composite tape 200 from the wind-up roller 141. The second winding mechanism 143 is located downstream of the second stripping roller 142 for winding the composite web 200.

The winding roller 141 is located at the second end of the conveying belt 131 and is disposed at the same side as the second roller 1313, and the composite material belt 200 is attached to the winding roller 141 after leaving the conveying belt 131. It is understood that downstream of the second peeling roller 142 refers to the area of the composite tape 200 peeled from the wind-up roller 141 in the wind-up direction of the composite tape 200.

Further, the second winding and unwinding device 140 further includes a second winding and unwinding mechanism 144, located upstream of the second peeling roller 142, for unwinding the second protective film material strip 410, and the second winding and unwinding mechanism 143 is used for winding the composite material strip 200 and the second protective film material strip 410 that are stacked. As shown in fig. 8, the finished tape 400 includes the composite tape 200 and the second protective film tape 410 that are stacked.

It will be appreciated that to reduce the probability of breakage of the composite web 200 during subsequent use, a layer of a stiffer protective web, the second protective film web 410, is typically incorporated during winding to form the finished web 400. The second unwinding mechanism 144 unwinds the second protective film material tape 410 from the winding roller 141 before the composite material tape 200 is peeled from the winding roller 141, and the composite material tape 200 is laminated with the second protective film material tape 410 when peeled from the winding roller 141.

Upstream of the second peeling roller 142 refers to an area before the second protective film web 410 is laminated with the composite web 200 along the unreeling direction of the second protective film web 410.

In some embodiments of the present application, the second unwind apparatus 140 further comprises a second visual inspection mechanism 145 and a second areal density inspection mechanism 146, both the second visual inspection mechanism 145 and the second areal density inspection mechanism 146 being located downstream of the second peel roller 142, the second visual inspection mechanism 145 for inspecting the contoured region of at least the first coating 220 of the composite web 200, and the second areal density inspection mechanism 146 for inspecting the areal density of at least the first coating 220 of the composite web 200.

It will be readily appreciated that based on the foregoing embodiment in which the membrane strip 210 is a proton membrane that has been single-sided coated with the second coating 230, the above mechanism detects the condition of the first coating 220 and the second coating 230; based on the foregoing embodiment in which the membrane web 210 is an uncoated proton membrane, the mechanism described above detects only the first coating 220.

As one example, the second areal density detection mechanism 146 and the first areal density detection mechanism 115 described above are X-Ray detection mechanisms; the second visual inspection mechanism 145 and the first visual inspection mechanism 114 are CCD visual positioning devices.

By detecting the state of at least the first coating 220, the coating quality of the first coating 220, such as the coating pitch, the coating thickness, the coating profile, whether the coatings on both sides are aligned, etc., can be known, and thus whether the composite tape 200 is good or not can be determined.

As an example, the second visual inspection mechanism 145 is closer to the second winding mechanism 143, and the finished web 400 passes through the second areal density inspection mechanism 146 and the second visual inspection mechanism 145 in sequence during winding.

Further, the second winding and unwinding device 140 further includes a series of auxiliary mechanisms, such as a third deviation rectifying mechanism 147, a fourth deviation rectifying mechanism 148, a second static electricity removing mechanism 149, a defect marking mechanism, and the like, to safely and reliably wind the composite material tape 200 or the finished material tape 400.

Specifically, the third deviation rectifying mechanism 147 is located between the second peeling roller 142 and the second unreeling mechanism 144, and is used for rectifying the second protective film material strip 410 that is about to pass through the second peeling roller 142; the fourth deviation rectifying mechanism 148 is disposed near the second winding mechanism 143, and is used for rectifying the composite material strip 200 or the finished material strip 400 that is about to enter the second winding mechanism 143. The second static electricity removing mechanism 149 is disposed near the second winding mechanism 143 for performing static electricity removing treatment on the composite material tape 200 or the finished material tape 400 that is about to enter the second winding mechanism 143. The defect marking mechanism is located downstream of the second areal density detection mechanism 146 and the second visual detection mechanism 145 for marking when the composite web 200 or the finished web 400 is judged to be defective.

As shown in fig. 3 and 4, further, the coating apparatus 100 further includes a mat-winding and unwinding device 150 for providing a mat-material belt 500.

As shown in fig. 3, in some embodiments of the present application, the mat winding and unwinding device 150 includes a mat unwinding mechanism 151 and a mat guide roller 152. The backing unreeling mechanism 151 is for unreeling the backing material belt 500, and the backing material guiding roller 152 is disposed corresponding to the coating roller 121 and upstream of the first peeling roller 112 for guiding the backing material belt 500 to be attached to the coating roller 121 before the film material belt 210 is attached to the coating roller 121.

Specifically, the cushion guide roller 152 and the first peeling roller 112 are sequentially disposed around the coating roller 121 along the rotation direction P of the coating roller 121, thereby achieving the first winding of the cushion material belt 500 and the second winding of the film material belt 210.

In order to reasonably utilize the equipment space, the mat unreeling mechanism 151 and the mat guiding roller 152 are both encapsulated in the coating device 120. In other embodiments, the mat unreeling mechanism 151 may be disposed at other positions.

It will be appreciated that the film material belt 210 is easily damaged during the process of adhering to the various rollers and the conveyor belt 131, and the cushion material belt 500 is temporarily provided to cushion the inner side of the film material belt 210, so that the film material belt 210 can be prevented from directly contacting the various rollers and the conveyor belt 131, and the cushion material belt 500 plays a role in supporting the film material belt 210, thereby realizing uniform adhering of the film material belt 210 to the surfaces of the various rollers and the conveyor belt 131 and reducing the risk of film swelling.

Based on the foregoing embodiments in which both the coating roller 121 and the conveyor belt 131 employ vacuum adsorption, the strip of mat material 500 is a breathable paper; in other embodiments, the strip of cushioning material 500 may be of other materials. The strip of cushioning material 500 may be wound into the finished strip 400 together as it is wound, or may be withdrawn prior to winding the finished strip 400.

As shown in fig. 4, in some embodiments of the present application, the mat winding and unwinding device 150 further includes a mat peeling roller 153 and a mat winding mechanism 154. The backing material peeling roller 153 is provided corresponding to the wind-up roller 141 and downstream of the second peeling roller 142 for peeling the backing material belt 500 from the wind-up roller 141; a mat take-up mechanism 154 is located downstream of the mat peel roller 153 for taking up the mat belt 500.

By recycling the strip of mat material 500, not only can the coating environment be maintained clean, but the strip of mat material 500 can also be recycled.

Specifically, along the rotational direction P of the wind-up roller 141, the second peeling roller 142 and the cushion peeling roller 153 are sequentially disposed around the wind-up roller 141, thereby realizing peeling of the composite material tape 200 first and peeling of the cushion material tape 500 second.

In order to reasonably utilize the equipment space, the wind-up roll 141, the pad peeling roll 153 and the pad winding mechanism 154 are all encapsulated in the second winding and unwinding device 140. In other embodiments, the wind-up roller 141 and the mat winding mechanism 154 may be disposed at other positions.

As shown in fig. 3 and 4, the mat winding and unwinding device 150 further includes a series of auxiliary mechanisms, such as a third static electricity removing mechanism 155, a fifth deviation correcting mechanism 156, and a mat receiving mechanism 163, etc., to safely and reliably wind and unwind the mat belt 500.

Specifically, the mat-receiving tape mechanism 163 is disposed near the mat unreeling mechanism 151 for splicing the mat-material tape 500; the third static electricity removing mechanism 155 is disposed near the mat guiding roller 152 for performing a static electricity removing process on the mat belt 500 that is about to pass through the mat guiding roller 152; the fifth deviation rectifying mechanism 156 is disposed near the mat winding mechanism 154 for rectifying the mat belt 500 to be wound.

It is understood that, in order to maintain the tension of the conveyor belt 131 and various material belts, tension rollers are provided at a plurality of positions inside the coating apparatus 100, and this conventional technology will not be further described.

As shown in fig. 1 to 8, the coating apparatus 100 of the embodiment of the present application operates as follows:

The first unreeling mechanism 111 unreels the film 300, the film 300 comprises a film material belt 210 coated with the second coating 230 and a first protective film material belt 310, the film 300 sequentially passes through the first deviation correcting mechanism 116, the first surface density detecting mechanism 115, the first visual detecting mechanism 114 and the first static removing mechanism 118 and then reaches the first stripping roller 112, the first protective film material belt 310 is separated from the film material belt 210, and the first reeling mechanism 113 reels the stripped first protective film material belt 310;

The cushion unreeling mechanism 151 unreels the cushion material belt 500, the cushion material belt 500 enters the coating roller 121 at the cushion material guide roller 152 before the film material belt 210, and the cushion material belt 500 is clamped between the film material belt 210 and the surface of the coating roller 121 to play a role in supporting and protecting;

Coating mechanism 122 coats the side of film strip 210 facing away from second coating 230 to form first coating 220, i.e., composite strip 200;

The conveyor belt 131 conveys the composite material belt 200 into the drying mechanism 132 and carries out sectional drying, the dried composite material belt 200 reaches the winding roller 141 and is separated from the cushion material belt 500 at the second stripping roller 142, the second unwinding mechanism 144 unwinds the second protective film material belt 410, and the second protective film material belt 410 and the composite material belt 200 are laminated to form a finished product material belt 400;

The finished product material belt 400 is rolled by the second rolling mechanism 143 after passing through the second surface density detection mechanism 146, the second visual detection mechanism 145, the defect marking mechanism, the second static electricity removing mechanism 149 and the fourth deviation correcting mechanism 148 in sequence;

The mat belt 500 is separated from the take-up roll 141 at the mat peeling roll 153, and the mat take-up mechanism 154 takes up the mat belt 500.

The coating device 100 of the embodiment of the application has the advantages of high coating efficiency and compact structure, and the coating device 100 is used for preparing the composite material belt 200, so that the production efficiency is high.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A coating apparatus (100), characterized by comprising:

A first winding and unwinding device (110) for providing a film strip (210);

A coating device (120) for coating a surface of the film web (210) to form a composite web (200), the composite web (200) comprising the film web (210) and a first coating (220) of the surface of the film web (210);

The second winding and unwinding device (140) is used for winding the composite material belt (200);

drying device (130), including conveyer belt (131) and stoving mechanism (132), the both ends of conveyer belt (131) respectively with coating unit (120) with second receive and release device (140) correspond the setting, conveyer belt (131) are used for to second receive and release device (140) carry composite material area (200), stoving mechanism (132) are used for stoving composite material area (200).

2. The coating apparatus (100) according to claim 1, wherein the drying mechanism (132) includes a plurality of sections of drying units along a conveying direction of the conveyor belt (131), the conveyor belt (131) passing through a plurality of sections of the drying units in sequence.

3. The coating apparatus (100) according to claim 1, wherein the conveyor belt (131) conveys the composite strip (200) in a linear direction.

4. The coating apparatus (100) according to claim 1, wherein the coating device (120) comprises:

An applicator roll (121) for receiving a film web (210);

And the coating mechanism (122) is positioned at the upstream of the drying mechanism (132), and the coating mechanism (122) is arranged corresponding to the coating roller (121) and is used for coating the surface of the film material belt (210) to form a first coating layer (220).

5. The coating apparatus (100) according to claim 4, wherein the surface of the coating roller (121) has vacuum adsorption holes.

6. The coating apparatus (100) according to claim 4, wherein the first winding-unwinding device (110) comprises:

The first unreeling mechanism (111) is used for unreeling the film material (300), and the film material (300) comprises a first protective film material belt (310) and a film material belt (210) which are arranged in a laminated mode;

A first peeling roller (112) provided in correspondence with the coating roller (121) for peeling off the first protective film material tape (310) and the film material tape (210) and guiding the film material tape (210) to be attached to the coating roller (121);

And the first winding mechanism (113) is positioned at the downstream of the first stripping roller (112) and is used for winding the first protective film material belt (310).

7. The coating apparatus (100) according to claim 6, wherein the coating apparatus (100) further comprises a mat winding and unwinding device (150) comprising:

a mat unreeling mechanism (151) for unreeling the mat material belt (500);

And a backing guide roller (152) provided in correspondence with the coating roller (121) and upstream of the first peeling roller (112) for guiding the lamination of the backing material strip (500) to the coating roller (121) before the lamination of the film strip (210) to the coating roller (121).

8. The coating apparatus (100) of claim 6, wherein the film web (210) includes a film web body (211) and a second coating (230) applied to one side of the film web body (211), the first coating (220) being applied to the other side of the film web body (211), the first winding and unwinding device (110) further comprising:

A first areal density detection mechanism (115) downstream of the first unwind mechanism (111) for detecting the areal density of the second coating (230) of the film web (210);

A first visual inspection mechanism (114) downstream of the first unwind mechanism (111) for inspecting a profile area of a second coating (230) of the film web (210).

9. The coating apparatus (100) according to claim 1, wherein the second winding and unwinding device (140) comprises:

a wind-up roller (141) for receiving the composite material belt (200) conveyed by the conveying belt (131);

A second peeling roller (142) provided in correspondence with the winding roller (141) for peeling the composite material tape (200) from the winding roller (141);

And the second winding mechanism (143) is positioned downstream of the second stripping roller (142) and is used for winding the composite material belt (200).

10. The coating apparatus (100) according to claim 9, wherein the second winding and unwinding device (140) further comprises:

And the second unreeling mechanism (144) is positioned at the upstream of the second stripping roller (142) and is used for unreeling a second protective film material belt (410), and the second reeling mechanism (143) is used for reeling the composite material belt (200) and the second protective film material belt (410) which are arranged in a laminated mode.

11. The coating apparatus (100) according to claim 9, wherein the second winding and unwinding device (140) further comprises:

A second areal density detection mechanism (146) downstream of the second stripping roller (142) for detecting the areal density of at least the first coating (220) of the composite strip (200);

A second visual inspection mechanism (145) downstream of the second stripping roller (142) for inspecting the contour area of at least the first coating (220) of the composite strip (200).

12. The coating apparatus (100) according to claim 9, wherein the coating apparatus (100) further comprises a mat winding and unwinding device (150) comprising:

a backing material peeling roller (153) provided in correspondence with the winding roller (141) and downstream of the second peeling roller (142) for peeling the backing material strip (500) from the winding roller (141);

And the cushion material rolling mechanism (154) is positioned at the downstream of the cushion material stripping roller (153) and is used for rolling the cushion material belt (500).