Feeding device for coating machine and coating system

Abstract

The utility model provides a feeding device for a coating machine and a coating system. The feeding device for the coating machine comprises a first tank body and a second tank body, the defoaming structure is installed in the containing cavity and located at the feeding end of the first tank body, the defoaming structure comprises a plurality of defoaming holes and a plurality of defoaming needles, and the tip end of each defoaming needle faces the feeding end of the first tank body. According to the technical scheme, the feeding device for the coating machine can solve the problem that the product quality is poor due to the fact that existing feeding equipment cannot conduct defoaming operation on slurry.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, and particularly to a feeding device for a coating machine and a coating system. Background Art

[0002] With the continuous promotion of the "dual carbon" goal, the hydrogen energy fuel cell industry is booming. As a core component of the hydrogen energy fuel cell, the structure of the proton exchange membrane is generally perfluorosulfonic acid resin - ePTFE - perfluorosulfonic acid resin. In the production of proton exchange membranes, high requirements are placed on the thickness of the membrane, and the slot die coater is a key device in the production process of proton exchange membranes.

[0003] The slot die coater is a device that performs non - contact coating on a substrate using a slot die coating head. During the production process of the slurry, bubbles are generated due to operations such as stirring and heating of the slurry. However, the existing equipment for feeding the coating machine only plays the role of storage and transportation and cannot perform defoaming operations on the slurry, resulting in problems such as uneven coating surface, blistering, and wrinkling, seriously affecting product quality. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a feeding device for a coating machine and a coating system, which can solve the problem that the existing feeding equipment cannot perform defoaming operations on the slurry, resulting in poor product quality.

[0005] To achieve the above purpose, according to one aspect of the utility model, a feeding device for a coating machine is provided, including: a first tank body having an accommodating cavity; a defoaming structure installed in the accommodating cavity and located at the feeding end of the first tank body, the defoaming structure including a plurality of defoaming holes and a plurality of defoaming needles, and the tip of each defoaming needle faces the feeding end of the first tank body.

[0006] Further, the number of defoaming structures is multiple, and the multiple defoaming structures are arranged at intervals in the vertical direction.

[0007] Further, the defoaming structure further includes a mounting plate, the plurality of defoaming holes and the plurality of defoaming needles are both arranged on the mounting plate, and the plurality of defoaming needles and the plurality of defoaming holes are arranged in a staggered manner; and / or, the plurality of defoaming needles are detachably installed on the mounting plate.

[0008] Further, the mounting plate is installed on the inner wall of the first tank body, and the mounting plate is in sealed cooperation with the inner wall of the first tank body.

[0009] Further, the feeding device for the coating machine further includes at least one second tank body, and the discharging end of the second tank body is communicated with the feeding port of the first tank body.

[0010] Further, at least one air extraction hole communicating with the inner cavity of the second tank body is provided on the second tank body, and the air extraction hole is used for connecting with a vacuum pumping device.

[0011] Further, the feeding device for a coater further includes at least one vacuum pumping device, and the vacuum pumping device is correspondingly arranged with the air extraction hole.

[0012] Further, the feeding device for a coater further includes a stirring mechanism and a driving motor. At least a part of the stirring mechanism is located in the inner cavity of the second tank body, the driving motor is located outside the inner cavity of the second tank body, and the driving motor is drivingly connected with the stirring mechanism; and / or, an observation window and a lighting device are provided on the first tank body, and the lighting device is arranged at the position where the observation window is located.

[0013] Further, at least one exhaust passage communicating with the accommodating cavity is provided at the top of the first tank body; and / or, the feeding device for a coater further includes a liquid level monitoring and alarming device, and the liquid level monitoring and alarming device is installed on the first tank body.

[0014] According to another aspect of the present invention, a coating system is provided, including: a coater; and the above-mentioned feeding device for a coater.

[0015] By applying the technical solution of the present invention, a first tank body and a defoaming structure are provided. The defoaming structure is installed in the accommodating cavity and located at the feeding end of the first tank body. The defoaming structure includes a plurality of defoaming holes and a plurality of defoaming needles. The slurry enters the accommodating cavity from the feeding end of the first tank body. After the slurry enters the accommodating cavity, it passes through the defoaming structure. A part of the bubbles in the slurry are pricked by the defoaming needles, and another part of the bubbles are squeezed and broken when passing through the defoaming holes, realizing physical defoaming. Through the above arrangement, the bubble content in the slurry can be greatly reduced, and the quality of the coated product can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the

[0017] drawings:

[0018] Figure 1 The structural schematic diagram of the feeding device for a coater according to an embodiment of the present invention is shown.

[0019] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0020] 10. First tank body; 11. Accommodating cavity; 12. Exhaust passage; 13. Feed inlet; 14. First three-way valve; 15. Lid; 20. Defoaming structure; 21. Defoaming holes; 22. Defoaming needles; 23. Mounting plate; 30. Second tank body; 31. Air extraction hole; 32. Second three-way valve; 40. Stirring mechanism; 50. Driving motor; 60. Liquid level monitoring and alarm device; 70. Observation window; 80. Lighting device; 90. Delivery pipeline; 91. Delivery pump; 100. Support block. Detailed implementation mode

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] As Figure 1 shown, the present invention provides a feeding device for a coating machine, and the feeding device for the coating machine includes: a first tank body 10 having an accommodating cavity 11; a defoaming structure 20 installed in the accommodating cavity 11 and located at the feeding end of the first tank body 10, and the defoaming structure 20 includes a plurality of defoaming holes 21 and a plurality of defoaming needles 22, and the tip of each defoaming needle 22 faces the feeding end of the first tank body 10.

[0023] In this embodiment, the feeding end of the first tank body 10 is communicated with the accommodating cavity 11, and the discharging end of the first tank body 10 is communicated with the coating machine for providing slurry for the coating machine, and the slurry is coated on the substrate through the coating die head of the coating machine. The slurry enters the accommodating cavity 11 from the feeding end of the first tank body 10. After the slurry enters the accommodating cavity 11, it passes through the defoaming structure 20. A part of the bubbles in the slurry are pricked by the defoaming needles 22, and another part of the bubbles are squeezed and broken when passing through the defoaming holes 21, realizing physical defoaming. Through the above settings, the bubble content in the slurry can be greatly reduced, ensuring the quality of the coated product.

[0024] As Figure 1 shown, in an embodiment of the present invention, the number of the defoaming structures 20 is multiple, and the multiple defoaming structures 20 are arranged at intervals in the vertical direction.

[0025] Through the above settings, multiple defoaming operations on the slurry can be realized, enhancing the defoaming effect.

[0026] As Figure 1 shown, in an embodiment of the present invention, the defoaming structure 20 further includes a mounting plate 23, and a plurality of defoaming holes 21 and a plurality of defoaming needles 22 are both arranged on the mounting plate 23, and the plurality of defoaming needles 22 and the plurality of defoaming holes 21 are arranged in a staggered manner.

[0027] In this embodiment, the defoaming needles 22 and the defoaming holes 21 are arranged alternately. Since the defoaming needles 22 are relatively thin, with the above arrangement, the installation space of the mounting plate 23 can be fully utilized, so that the entire mounting plate 23 is covered with defoaming needles 22 and defoaming holes 21, ensuring the defoaming effect.

[0028] In one embodiment, a plurality of defoaming needles 22 are provided on the inner wall of each defoaming hole 21.

[0029] Such as Figure 1 shown, in one embodiment of the present utility model, a plurality of defoaming needles 22 are detachably mounted on the mounting plate 23.

[0030] With the above arrangement, it is convenient to replace the defoaming needles 22. When some of the defoaming needles 22 are damaged, it is not necessary to replace the entire mounting plate 23.

[0031] Such as Figure 1 shown, in one embodiment of the present utility model, the mounting plate 23 is mounted on the inner wall of the first tank 10, and the mounting plate 23 is in sealing cooperation with the inner wall of the first tank 10.

[0032] In this embodiment, a feed port 13 is provided on the side wall of the first tank 10, and the slurry enters the accommodation cavity 11 from the feed port 13. The mounting plate 23 is fixedly mounted on the inner wall of the first tank 10, and the mounting plate 23 is in sealing cooperation with the inner wall of the first tank 10 and divides the accommodation cavity 11 into two non-communicating sub-cavities. In this way, the slurry will not flow out from the discharge end of the first tank 10 through the gap between the mounting plate 23 and the first tank 10 without passing through the defoaming structure 20. With the above arrangement, the slurry entering from the feed port 13 can all pass through the defoaming needles 22 and defoaming holes 21 on the mounting plate 23, realizing defoaming of the slurry.

[0033] Such as Figure 1 shown, in one embodiment of the present utility model, the feeding device for a coater further includes a support block 100, and the support block 100 is mounted on the inner wall of the first tank 10, and the mounting plate 23 is fixedly mounted on the support block 100.

[0034] Such as Figure 1 shown, in one embodiment of the present utility model, the feeding device for a coater further includes at least one second tank 30, and the discharge end of the second tank 30 is communicated with the feed port 13 of the first tank 10.

[0035] In this embodiment, the setting of the second tank 30 can be used as a slurry buffer device for the first tank 10, which can increase the slurry storage capacity of the feeding device for the coater, and further reduce the frequency of adding slurry to the first tank 10, saving the manpower and material resources for adding slurry, reducing costs, and can be applied to coaters that require long-time coating operations.

[0036] Such asFigure 1 As shown, in one embodiment of the present utility model, at least one air extraction hole 31 communicating with the inner cavity of the second tank body 30 is provided on the second tank body 30, and the air extraction hole 31 is used to connect with a vacuum extraction device.

[0037] Through the above settings, most of the bubbles in the slurry in the second tank body 30 can be effectively removed by vacuum extraction. Moreover, after the slurry in the second tank body 30 is preliminarily defoamed, it enters the second tank body 30, and the defoaming structure 20 in the second tank body 30 can perform secondary defoaming on the slurry.

[0038] It should be noted that the second tank body 30 can be used in combination with the first tank body 10 or used alone, connected to a coater, and directly supply materials to the coater, which is selected according to the usage demand of the slurry.

[0039] As Figure 1 shown, in one embodiment of the present utility model, the feeding device for a coater further includes at least one vacuum extraction device, and the vacuum extraction device is correspondingly arranged with the air extraction hole 31.

[0040] In this embodiment, the number of the vacuum extraction devices is the same as that of the air extraction holes 31, and the vacuum extraction devices and the air extraction holes 31 are arranged in one-to-one correspondence to remove the bubbles in the slurry in the second tank body 30.

[0041] In one embodiment, the vacuum extraction device is an air extraction pump.

[0042] As Figure 1 shown, in one embodiment of the present utility model, the feeding device for a coater further includes a stirring mechanism 40 and a driving motor 50. At least part of the stirring mechanism 40 is located in the inner cavity of the second tank body 30, the driving motor 50 is located outside the inner cavity of the second tank body 30, and the driving motor 50 is drivingly connected to the stirring mechanism 40.

[0043] In this embodiment, the driving motor 50 drives the stirring mechanism 40 to stir the slurry in the second tank body 30 to achieve the stirring and dispersing function, so as to avoid the slurry from settling after being left standing for a long time or undergoing physical property changes.

[0044] As Figure 1 shown, in one embodiment of the present utility model, an observation window 70 and a lighting device 80 are provided on the first tank body 10, and the lighting device 80 is arranged at the position where the observation window 70 is located.

[0045] Through the above settings, it is convenient to monitor the situation of the slurry inside the first tank body 10 in real time, and the setting of the lighting device 80 can ensure that the situation of the slurry inside the first tank body 10 can also be observed at night.

[0046] As Figure 1As shown, in an embodiment of the present utility model, at least one exhaust passage 12 communicating with the accommodation chamber 11 is provided at the top of the first tank body 10.

[0047] In this embodiment, the gas generated during the feeding process or defoaming process can be discharged through the exhaust passage 12.

[0048] In an embodiment, a lid 15 is provided on the first tank body 10, and the exhaust passage 12 is provided on the lid 15.

[0049] As Figure 1 shown, in an embodiment of the present utility model, the feeding device for a coating machine further includes a liquid level monitoring and alarm device 60, and the liquid level monitoring and alarm device 60 is installed on the first tank body 10.

[0050] In this embodiment, the liquid level monitoring and alarm device 60 can display the slurry liquid level in the first tank body 10 in real time. When the slurry liquid level reaches the set lower limit, an alarm can be given, thereby avoiding untimely addition of the slurry. Through the above settings, the feeding device for the coating machine is made more intelligent and automated, and while defoaming the slurry, the slurry liquid level can also be monitored in real time.

[0051] It should be noted that the overall volume of the feeding device for the coating machine in this application is relatively large, so it is convenient for cleaning.

[0052] In an embodiment, the feeding device for the coating machine further includes a conveying pipeline 90, a first three-way valve 14, and a second three-way valve 32. One end of the conveying pipeline 90 communicates with the second three-way valve 32, and the other end of the conveying pipeline 90 communicates with the feed inlet 13 of the first tank body 10. A conveying pump 91 is provided on the conveying pipeline 90 for conveying the slurry located in the second tank body 30 into the first tank body 10. The right outlet of the first three-way valve 14 is connected to the downstream of the feeding (i.e., the coating machine) for convenient feeding. The slurry in the first tank body 10 can flow into the coating machine through the first three-way valve 14. The lower outlet of the first three-way valve 14 serves as the discharge port of the first tank body 10 for convenient discharging and cleaning. The right outlet of the second three-way valve 32 is connected to the downstream of the feeding (conveying pipeline 90) for convenient feeding. The slurry in the second tank body 30 can flow into the conveying pipeline 90 through the second three-way valve 32 and be conveyed to the first tank body 10 by the conveying pump 91. The lower outlet of the second three-way valve 32 serves as the discharge port of the second tank body 30 for convenient discharging and cleaning.

[0053] In an embodiment, the conveying pump 91 is a high-precision screw pump. Under the pumping action of the screw pump, the slurry enters the first tank body 10, and through the high-precision metering of the screw pump, the slurry dosage can be effectively controlled.

[0054] The present utility model also provides a coating system, including: a coating machine; and the above-mentioned feeding device for the coating machine.

[0055] In this embodiment, the coater can be a coater of the prior art such as a roll coater, an air knife coater, a slot die coater, etc. The feeding device for the coater of the coating system has all the technical solutions and all the technical effects of the feeding device for the coater as described above, which will not be elaborated here.

[0056] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: A first tank body and a defoaming structure are provided. The defoaming structure is installed in the accommodating cavity and is located at the feeding end of the first tank body. The defoaming structure includes a plurality of defoaming holes and a plurality of defoaming needles. The slurry enters the accommodating cavity from the feeding end of the first tank body. After the slurry enters the accommodating cavity, it passes through the defoaming structure. A part of the bubbles in the slurry are pricked by the defoaming needles, and another part of the bubbles are squeezed and broken when passing through the defoaming holes, realizing physical defoaming. Through the above settings, the bubble content in the slurry can be greatly reduced, ensuring the product quality after coating.

[0057] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or their combinations.

[0059] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A feeding device for a coating machine, characterized in that: include: A first tank body (10) having a containing cavity (11); a defoaming structure (20) installed in the accommodating cavity (11) and located at the feeding end of the first tank body (10), the defoaming structure (20) comprising a plurality of defoaming holes (21) and a plurality of defoaming needles (22), the tip of each of the defoaming needles (22) facing the feeding end of the first tank body (10); The defoaming structure (20) further comprises a mounting plate (23), and the plurality of defoaming holes (21) and the plurality of defoaming needles (22) are all arranged on the mounting plate (23); The mounting plate (23) is mounted on the inner wall of the first tank body (10), and the mounting plate (23) is in sealing cooperation with the inner wall of the first tank body (10); A plurality of defoaming needles (22) are arranged on the inner wall of each defoaming hole (21).

2. The feeding device for a coating machine according to claim 1, characterized in that: The number of the defoaming structures (20) is plural, and the plural defoaming structures (20) are arranged at intervals along the vertical direction.

3. The feeding device for a coating machine according to claim 1, characterized in that: The plurality of defoaming needles (22) and the plurality of defoaming holes (21) are arranged in a staggered manner; and / or the plurality of defoaming needles (22) can be detachably mounted on the mounting plate (23).

4. The feeding device for a coating machine according to any one of claims 1 to 3, characterized in that: The coating machine feeding device further comprises at least one second tank body (30), wherein the discharge end of the second tank body (30) is connected to the feed port (13) of the first tank body (10).

5. The feeding device for a coating machine according to claim 4, characterized in that: The second tank body (30) is provided with at least one air extraction hole (31) which is in communication with the inner cavity of the second tank body (30), and the air extraction hole (31) is used to be connected to a vacuum extraction device.

6. The feeding device for a coating machine according to claim 5, characterized in that: The coating machine feeding device further comprises at least one vacuum pumping device, and the vacuum pumping device is arranged corresponding to the air extraction hole (31).

7. The feeding device for a coating machine according to claim 4, characterized in that: The feeding device for the coating machine further comprises a stirring mechanism (40) and a driving motor (50), wherein at least a portion of the stirring mechanism (40) is located in the inner cavity of the second tank body (30), and the driving motor (50) is located outside the inner cavity of the second tank body (30), and the driving motor (50) is drivingly connected to the stirring mechanism (40); and / or, an observation window (70) and a lighting device (80) are provided on the first tank body (10), and the lighting device (80) is provided where the observation window (70) is located.

8. The feeding device for a coating machine according to claim 1, characterized in that: The top of the first tank body (10) is provided with at least one exhaust passage (12) connected to the accommodating chamber (11); and / or the coating machine feeding device further comprises a liquid level monitoring alarm device (60), and the liquid level monitoring alarm device (60) is installed on the first tank body (10).

9. A coating system, characterized in that: include: Coating machine; as well as A feeding device for a coating machine according to any one of claims 1 to 8.

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