Blade coating mechanism

Abstract

The invention belongs to the technical field of fuel cell processing, and discloses a blade coating mechanism. The scraper coating mechanism comprises a rack, a trough assembly, a coating roller and a scraper. The trough assembly is installed on the rack in an angle-adjustable mode so as to adjust the inclination angle of the trough assembly relative to the rack. The coating roller is rotatably mounted on the rack, and the coating roller is located at the lower end of the trough assembly; the coating roller is mounted on the rack, the scraper is mounted on the rack, the scraper is located on the upper side of the coating roller at intervals, the trough assembly, the coating roller and the scraper jointly define a material containing area, and a feeding gap exists between the trough assembly and the coating roller. Therefore, when the type of the slurry is changed, the inclination angle of the trough assembly relative to the rack can be adjusted as required, so that feeding can be performed at an optimal angle, the slurry is prevented from falling on carbon paper at an improper angle to generate bubbles, and the slurry coating quality of the carbon paper is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cell processing, and in particular to a scraper coating mechanism. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Its basic principle is the reverse reaction of water electrolysis, where hydrogen and oxygen are supplied to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons and reaches the cathode through an external load.

[0003] As one of the key components of hydrogen fuel cells, carbon paper plays important roles such as conductivity, load bearing and drainage, and is usually called a gas diffusion layer. In the processing of carbon paper, a doctor blade coating mechanism is generally required to coat the liquid MPL (Microporous Layer) slurry on the surface of the carbon paper, and then high-temperature sintering is performed to complete the production of the microporous layer of the carbon paper.

[0004] However, different types of slurries have different optimal feeding angles, and in the prior art, the position of the trough assembly of the blade coating mechanism is fixed, resulting in the inability to adjust the angle of the trough assembly. If the slurry is not fed at the optimal feeding angle, bubbles will be generated after the slurry falls on the carbon paper, affecting the slurry coating quality of the carbon paper. Summary of the invention

[0005] The object of the present invention is to provide a scraper coating mechanism, which can adjust the inclination angle of the trough assembly on the frame, thereby realizing the adjustment of the feeding angle of the trough assembly and the slurry.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Doctor blade coating mechanism, comprising:

[0008] frame;

[0009] A trough assembly is mounted on the frame in an angle-adjustable manner to adjust the inclination angle of the trough assembly relative to the frame;

[0010] A coating roller is rotatably mounted on the frame, and the coating roller is located at a lower end of the trough assembly;

[0011] A scraper is mounted on the frame, the scraper is spaced apart and located on the upper side of the coating roller, the material trough assembly, the coating roller and the scraper are jointly arranged to form a material holding area, and a feeding gap exists between the material trough assembly and the coating roller.

[0012] As an optional solution of the above-mentioned scraper coating mechanism, the trough assembly includes:

[0013] Trough plate;

[0014] A mounting plate is provided at each end of the trough plate, and the mounting plate is mounted on the frame with an adjustable angle. The mounting plate, the trough plate, the coating roller and the scraper are jointly arranged to form the material holding area.

[0015] As an optional solution of the above-mentioned scraper coating mechanism, the mounting plate is provided with a mounting hole group, and the mounting hole group includes:

[0016] First hole;

[0017] a first connecting member, the first connecting member being capable of passing through the first hole and being connected to the frame;

[0018] a second hole, the second hole being a strip-shaped hole, and the second hole extending along a circumferential direction of a circle with a center of the first hole as a center;

[0019] A second connecting member, wherein the second connecting member can be passed through the second hole and connected to the frame.

[0020] As an optional scheme of the above-mentioned scraper coating mechanism, the material trough assembly also includes two material trough baffles, the two material trough baffles are arranged at intervals along the spacing direction between the two mounting plates, and the distance between the two material trough baffles is adjustable, and the two material trough baffles, the material trough plate, the coating roller and the scraper are jointly arranged to form the material holding area.

[0021] As an optional solution of the above-mentioned scraper coating mechanism, the mounting position of the trough plate on the mounting plate is adjustable along a first direction to adjust the size of the feeding gap, and the first direction is parallel to the direction in which the trough plate approaches or moves away from the coating roller.

[0022] As an optional scheme of the above-mentioned scraper coating mechanism, the trough assembly also includes a trough plate position adjustment structure, and each of the mounting plates is provided with a trough plate position adjustment structure. Along the spacing direction between the two mounting plates, the two ends of the trough plate are respectively installed on a trough plate position adjustment structure, and the trough plate position adjustment structure is used to adjust the installation position of the trough plate so that the trough plate can be adjusted in the direction close to or away from the coating roller.

[0023] As an optional solution of the above-mentioned scraper coating mechanism, the mounting position of the material trough assembly on the frame is adjustable to be close to or away from the coating roller.

[0024] As an optional solution of the above-mentioned scraper coating mechanism, the scraper coating mechanism also includes a scraper lifting drive assembly, which is arranged on the frame, and the scraper is connected to the output end of the scraper lifting drive assembly, and the scraper lifting drive assembly can drive the scraper to approach or move away from the coating roller.

[0025] As an optional solution of the above-mentioned scraper coating mechanism, the scraper lifting drive assembly includes:

[0026] A lifting drive member, arranged on the frame;

[0027] A lifting block is slidably arranged on the frame along the movement direction of the scraper, the output end of the lifting drive member is connected to the lifting block, and the scraper is arranged on the lifting block.

[0028] As an optional solution of the above-mentioned scraper coating mechanism, the scraper coating mechanism further includes a material feeding gap adjustment component, and the material feeding gap adjustment component includes:

[0029] A first adjusting member is fixedly arranged on the lower surface of the lifting block, and the lower surface of the first adjusting member is provided with a first inclined surface inclined relative to the lifting direction of the lifting block;

[0030] The second adjusting member is movably arranged on the frame in a direction perpendicular to the lifting direction, and the lower surface of the second adjusting member is provided with a second inclined surface inclined relative to the lifting direction of the lifting block, and the first inclined surface can descend to at least partially fit with the second inclined surface.

[0031] Beneficial effects of the present invention:

[0032] When the scraper coating mechanism provided in this embodiment is working, the material holding area contains slurry, and the carbon paper to be coated with slurry enters the material holding area from the feeding gap and passes through the material passing gap between the coating roller and the scraper. The coating roller rotates to realize the forward conveyance of the carbon paper, and the scraper scrapes and presses the slurry on the surface of the carbon paper. Since the trough assembly is installed on the frame with an adjustable angle to adjust the inclination angle of the trough assembly relative to the frame; therefore, when the type of slurry changes, the inclination angle of the trough assembly relative to the frame is adjusted as needed, so that the material can be loaded at the optimal angle, avoiding the slurry falling on the carbon paper at an inappropriate angle to generate bubbles, thereby ensuring the slurry coating quality of the carbon paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0034] Figure 1 is a schematic diagram of a first viewing angle of a blade coating mechanism provided by an embodiment of the present invention;

[0035] Figure 2 is a schematic cross-sectional structure diagram of a blade coating mechanism provided in an embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of the exploded structure of the material feeding gap adjustment component in the scraper coating mechanism provided by an embodiment of the present invention;

[0037] Figure 4 is a schematic diagram of the first adjusting member and the second adjusting member of the material feeding gap adjusting assembly provided by an embodiment of the present invention when in contact;

[0038] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0039] Figure 6 is a schematic diagram of a scraper coating mechanism provided by an embodiment of the present invention from a second viewing angle;

[0040] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0041] Figure 8 is a schematic diagram of a blade coating mechanism provided by an embodiment of the present invention with the coating roller hidden;

[0042] Fig. 9 It is a schematic diagram of a scraper coating mechanism provided by an embodiment of the present invention, in which a trough assembly is separated from a frame;

[0043] Fig.10 It is a partial structural schematic diagram of a trough assembly provided in an embodiment of the present invention;

[0044] Fig.11 yes Fig.10 Enlarged view of point C in the middle.

[0045] In the figure:

[0046] 1. Frame;

[0047] 2. Trough assembly; 21. Trough plate;

[0048] 22. Mounting plate; 221. First hole; 222. Second hole;

[0049] 23. trough baffle; 231. trough baffle body; 232. trough baffle body fixing frame; 2321. upper frame; 2322. lower frame; 233. first locking member;

[0050] 24. Transverse movement assembly; 241. Adjusting screw; 242. Adjusting block;

[0051] 25. slot plate position adjustment structure; 251. slot plate position adjustment plate; 2511. bottom plate; 2512. side plate; 252. second locking member;

[0052] 3. Coating roller;

[0053] 4. Scraper;

[0054] 5. Material holding area; 51. Material feeding gap; 52. Material passing gap;

[0055] 6. Scraper lifting drive assembly; 61. Lifting drive member; 62. Lifting block;

[0056] 7. Material gap adjustment assembly; 71. First adjustment member; 711. First inclined surface; 72. Second adjustment member; 721. Second inclined surface; 731. Second adjustment member driving member; 732. Screw rod;

[0057] 8. Feeding pipe assembly. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0061] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0064] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0065] See also Figure 1 and Figure 2 The present embodiment provides a scraper coating mechanism, which can complete the coating of microporous layer slurry on carbon paper and can be applied to different types of microporous layer slurries, thereby ensuring the coating quality of different types of slurries on carbon paper.

[0066] Specifically, in this embodiment, the scraper coating mechanism includes a frame 1 , a material tank assembly 2 , a coating roller 3 and a scraper 4 .

[0067] The trough assembly 2 is installed on the frame 1 in an adjustable manner to adjust the inclination angle of the trough assembly 2 relative to the frame 1 .

[0068] The coating roller 3 is rotatably mounted on the frame 1 , and is located at a lower end of the trough assembly 2 .

[0069] The scraper 4 is mounted on the frame 1, and is spaced apart on the upper side of the coating roller 3. The trough assembly 2, the coating roller 3 and the scraper 4 are together arranged to form a material holding area 5, and there is a material feeding gap 51 between the trough assembly 2 and the coating roller 3. The tilt angle of the trough assembly 2 relative to the frame 1 is adjusted, so that the feeding angle of the slurry on the carbon paper can be adjusted.

[0070] The scraper 4 is spaced apart and located on the upper side of the coating roller 3. With such arrangement, there is a feed gap 52 between the scraper 4 and the coating roller 3. The existence of the feed gap 52, on the one hand, facilitates the carbon paper to pass through the feed gap 52. On the other hand, when the carbon paper passes through the material holding area 5 and passes through the feed gap 52, the scraper 4 can stably press the slurry on the carbon paper onto the carbon paper.

[0071] When the scraper coating mechanism provided in this embodiment is working, the material holding area 5 contains slurry, and the carbon paper to be coated with slurry enters the material holding area 5 from the feeding gap 51 and passes through the material passing gap 52 between the coating roller 3 and the scraper 4. The coating roller 3 rotates to realize the forward conveyance of the carbon paper, and the scraper 4 scrapes and presses the slurry on the surface of the carbon paper. Since the trough component 2 is installed on the frame 1 with an adjustable angle to adjust the inclination angle of the trough component 2 relative to the frame 1; therefore, when the type of slurry changes, the inclination angle of the trough component 2 relative to the frame 1 is adjusted as needed, so that the material can be loaded at the optimal angle, avoiding the slurry falling on the carbon paper at an inappropriate angle to generate bubbles, and ensuring the slurry coating quality of the carbon paper.

[0072] It can be understood that there is a feeding gap 51 between the material trough assembly 2 and the coating roller 3 to ensure that the carbon paper can enter the material holding area 5 from the feeding gap 51 and then pass through the feeding gap 52 between the coating roller 3 and the scraper 4, and also to ensure that the slurry in the material holding area 5 can flow to the surface of the carbon paper.

[0073] Specifically, see Figure 2 The blade coating mechanism further includes a feeding pipe assembly 8, and the slurry is sequentially transported to the material holding area 5 via the feeding system and the feeding pipe assembly 8. Of course, in other embodiments, the slurry can also be directly poured into the material holding area 5 by the operator.

[0074] Specifically, in this embodiment, the scraper coating mechanism further includes a scraper lifting drive assembly 6, which is disposed on the frame 1, and the scraper 4 is connected to the output end of the scraper lifting drive assembly 6, and the scraper lifting drive assembly 6 can drive the scraper 4 to approach or move away from the coating roller 3. The scraper lifting drive assembly 6 can quickly adjust the scraper 4 to a preset position. For example, the scraper lifting drive assembly 6 can quickly adjust the scraper 4 to be close to the coating roller 3, so that a material passing gap 52 is quickly formed between the two.

[0075] More specifically, the scraper lifting drive assembly 6 includes a lifting drive member 61 and a lifting block 62 .

[0076] The lifting driving member 61 is disposed on the frame 1 .

[0077] The lifting block 62 is slidably disposed on the frame 1 along the moving direction of the scraper. The output end of the lifting drive member 61 is connected to the lifting block 62 , and the scraper 4 is disposed on the lifting block 62 .

[0078] Optionally, the scraper moves in the direction of gravity.

[0079] More specifically, a guide rail extending along the movement direction of the scraper is arranged on the frame 1, and a slider is fixedly arranged on the lifting block 62, and the slider can be slidably arranged on the guide rail.

[0080] Further, see Figure 3-Figure 5 In order to adjust the coating thickness of the slurry on the carbon paper, the scraper coating mechanism also includes a feed gap adjustment component 7, which can adjust the size of the feed gap 52, thereby adjusting the coating thickness of the slurry on the carbon paper.

[0081] Specifically, the material gap adjustment assembly 7 includes a first adjustment member 71 and a second adjustment member 72 .

[0082] The first adjusting member 71 is fixedly disposed on the lower surface of the lifting block 62 . The lower surface of the first adjusting member 71 is provided with a first inclined surface 711 inclined relative to the lifting direction of the lifting block 62 .

[0083] The second adjusting member 72 is arranged in a direction perpendicular to the lifting direction (i.e. Figure 3 The lower surface of the second adjusting member 72 is provided with a second inclined surface 721 inclined relative to the lifting direction of the lifting block 62, and the first inclined surface 711 can descend to at least partially fit with the second inclined surface 721.

[0084] It is understandable that when the scraper lifting drive assembly 6 drives the scraper 4 to move downward toward the coating roller 3, the scraper lifting drive assembly 6 stops operating after the first inclined surface 711 moves to contact the second inclined surface 721 of the second adjusting member 72. If it is necessary to adjust the size of the feeding gap 52, that is, if it is necessary to adjust the slurry coating thickness on the carbon paper, the second adjusting member 72 is controlled to slide on the second inclined surface 721 along the lifting direction of the lifting block 62, so that the height of the block formed by the combination of the first adjusting member 71 and the second adjusting member 72 can be adjusted, and then the feeding gap 52 between the scraper 4 and the coating roller 3 can be fine-tuned, thereby achieving the adjustment of the slurry coating thickness on the carbon paper.

[0085] Further, in order to realize the reciprocating movement of the second adjusting member 72 along the lifting direction perpendicular to the lifting block 62, see Figure 3 The material passing gap adjustment component 7 also includes a second adjustment member driving structure.

[0086] Specifically, the second adjustment member driving structure includes a second adjustment member driving member 731 and a screw rod 732. The second adjustment member driving member 731 is installed on the frame 1. The screw rod 732 extends along the second direction. The second adjustment member 72 is threaded through the screw rod 732. The second adjustment member 72 and the screw rod 732 are a screw rod nut structure. The output shaft of the second adjustment member driving member 731 is connected to the screw rod 732 through a coupling, and can drive the screw rod 732 to rotate around its own axis.

[0087] When the second adjusting member driving member 731 drives the screw rod 732 to rotate, the second adjusting member 72 reciprocates along the screw rod 732 to adjust the material passing gap 52 .

[0088] Furthermore, in order to reduce the movement resistance of the second adjusting member 72, the second adjusting member 72 is provided with a plurality of rotating rollers arranged in sequence along the lifting direction perpendicular to the lifting block 62. The existence of the rotating rollers makes the friction between the first adjusting member 71 and the second adjusting member 72 rolling friction, and the rolling friction resistance is small, which facilitates the adjustment of the material gap 52.

[0089] For example, Figure 4 and Figure 5 Taking the shown position as an example, when the gap size of the feed gap 52 needs to be increased, the second adjusting member 72 is controlled to move to the left; when the gap size of the feed gap 52 needs to be decreased, the second adjusting member 72 is controlled to move to the right.

[0090] Specifically, in this embodiment, the mounting position of the trough assembly 2 on the frame 1 is adjustable to be close to or away from the coating roller 3. With such an arrangement, after the coating roller 3 and the scraper 4 are adjusted to a proper position, the position of the trough assembly 2 can be quickly adjusted to a proper position, and the material holding area 5 can be quickly formed.

[0091] Specifically, in this embodiment, Figure 1 Take the direction shown as an example, along Figure 1 In the third direction, the mounting position of the trough assembly 2 on the frame 1 can be adjusted to be close to or away from the coating roller 3.

[0092] Specifically, the third direction and the second direction are perpendicular to each other. The second direction is parallel to the axis of the coating roller 3. Specifically, in this embodiment, see Figure 1 The third direction and the second direction are two horizontal directions perpendicular to each other. The third direction is a horizontal direction perpendicular to the axial direction of the coating roller 3; the second direction is parallel to the axial direction of the coating roller 3.

[0093] Further, see Figure 6-Figure 8 In order to adjust the installation position of the trough assembly 2 on the frame 1, the trough assembly 2 also includes a transverse movement assembly 24.

[0094] The transverse movement assembly 24 includes an adjusting screw 241 and an adjusting block 242 . The adjusting screw 241 is threadedly connected to the frame 1 . The adjusting block 242 is threadedly connected to the adjusting screw 241 to form a screw-nut structure. The mounting plate 22 is mounted on the adjusting block 242 .

[0095] Further, see Fig. 9 and Fig.10 In this embodiment, the trough assembly 2 includes a trough plate 21 and a mounting plate 22.

[0096] Specifically, in terms of the actual use orientation of the blade coating mechanism, the upward surface of the trough plate 21 (the surface is tilted upward) is the bottom surface of the material holding area 5 .

[0097] A mounting plate 22 is provided at both ends of the trough plate 21, and the mounting plate 22 is mounted on the frame 1 with an adjustable angle, so as to adjust the mounting angle of the trough assembly 2. The mounting plate 22, the trough plate 21, the coating roller 3 and the scraper 4 are jointly arranged to form a material holding area 5.

[0098] There is a feeding gap 51 between the lower end of the trough plate 21 and the coating roller 3 .

[0099] When the inclination angle of the trough plate 21 needs to be adjusted, the installation angle of the installation plate 22 on the frame 1 is adjusted to adjust the inclination angle of the trough plate 21, thereby adjusting the feeding angle of the slurry in the material holding area 5.

[0100] Further, in order to adjust the installation angle of the mounting plate 22 on the rack 1, see Fig.10 and Fig.11 In this embodiment, a group of mounting holes is provided on the mounting plate 22.

[0101] The mounting hole group includes a first hole 221, a first connecting member, a second hole 222 and a second connecting member.

[0102] The first connecting member can pass through the first hole 221 and be connected to the frame 1 .

[0103] The second hole 222 is a strip-shaped hole, and the second hole 222 extends along the circumference of a circle with the center of the first hole 221 as the center. The second connecting member can pass through the second hole 222 and be connected to the frame 1 .

[0104] That is, the second hole 222 is an arc-shaped strip hole, and the arc-shaped strip hole can prevent the second connecting member from interfering with the second hole 222 when the angle is adjusted.

[0105] Preferably, the first hole 221 is a round hole for easy processing and manufacturing. Of course, in other embodiments, the first hole 221 can also be an elliptical hole, a bar hole or a square hole, as long as it can ensure that the first connecting member passes through the first hole 221, and no excessive restrictions are made here.

[0106] Preferably, the number of the first hole 221 is one, the number of the second holes 222 is three, and the three second holes 222 are distributed on a circle with the center of the first hole 221 as the center. Such an arrangement can ensure that when the installation angle of the mounting plate 22 on the rack 1 is adjusted into place, the first connecting member and the second connecting member jointly fix the mounting plate 22 stably on the rack 1, thereby preventing the mounting plate 22 from moving in position due to unstable connection.

[0107] Optionally, the first connecting member and the second connecting member are both bolts.

[0108] Specifically, the frame 1 is provided with a first connection hole corresponding to the first hole 221, and the frame 1 is also provided with a second connection hole corresponding to the second hole 222. Both the first connection hole and the second connection hole are internal thread holes adapted to bolts.

[0109] Specifically, the first connecting hole and the second connecting hole are both arranged on the adjusting block 242 , that is, the installation angle of the mounting plate 22 relative to the adjusting block 242 is adjusted by the mounting hole group, so as to adjust the installation angle of the mounting plate 22 on the rack 1 .

[0110] Specifically, see Fig. 9 In this embodiment, the material trough assembly 2 also includes two material trough baffles 23, and the two material trough baffles 23 are arranged at intervals along the spacing direction between the two mounting plates 22, and the distance between the two material trough baffles 23 is adjustable. The two material trough baffles 23, the material trough plate 21, the coating roller 3 and the scraper 4 are jointly arranged to form a material holding area 5.

[0111] Specifically, Fig.10 As an example, the spacing direction between the two mounting plates 22 is Fig. 9 The length direction of the trough plate is shown.

[0112] The arrangement of the trough baffle 23 can ensure that the slurry in the material holding area 5 is stably located in the material holding area 5. Each trough baffle 23 is adjustable in position on the trough plate 21 along the spacing direction between the two mounting plates 22. In this arrangement, the distance between the two trough baffles 23 can be adjusted, and the width of the material holding area 5 can be adjusted (the width direction of the material holding area 5 is Fig.10 The length direction of the trough plate shown in the figure) can ultimately adjust the slurry coating width on the carbon paper.

[0113] Specifically, the trough baffle 23 includes a trough baffle body 231 , a trough baffle body fixing frame 232 and a first locking member 233 .

[0114] The trough baffle body 231 is fixedly disposed on the trough baffle body fixing frame 232 .

[0115] The trough baffle body fixing frame 232 includes an upper frame 2321 and a lower frame 2322 that are connected to each other. The trough baffle body 231 is fixedly arranged on the lower surface of the upper frame 2321. The lower surface of the trough baffle body 231 and the upper surface of the lower frame 2322 are relatively spaced apart. The trough plate 21 is clamped between the lower surface of the trough baffle body 231 and the upper surface of the lower frame 2322. The first locking piece 233 is threaded through the lower frame 2322 and then pressed against the lower surface of the trough plate 21.

[0116] That is, there is a clamping plate gap between the lower surface of the trough baffle body 231 and the upper surface of the lower frame body 2322, and the size of the clamping plate gap is the same as the thickness of the trough plate 21.

[0117] Such arrangement not only realizes the adjustment of the installation position of the trough baffle 23 , but also avoids the problem that the trough plate 21 cannot be used normally due to the opening of holes in the trough plate 21 .

[0118] Optionally, the first locking member 233 is a bolt, and a five-star handle is provided at one end of the first locking member 233 away from the trough baffle body 231 to facilitate an operator to screw the first locking member 233 .

[0119] Specifically, see Fig.10 Along the first direction, the mounting position of the trough plate 21 on the mounting plate 22 is adjustable to adjust the size of the feeding gap 51 , and the first direction is parallel to the direction in which the trough plate 21 approaches or moves away from the coating roller 3 .

[0120] Specifically, Fig.10 Taking the direction shown as an example, the first direction is Fig.10 The width direction of the middle trough plate 21.

[0121] It is understandable that when the type of slurry changes, it is necessary to adaptively adjust the installation angle of the trough plate 21 relative to the frame 1. When the angle of the trough plate 21 changes, the size of the feeding gap 51 will also change. If the size of the feeding gap 51 is too large, leakage may occur at the feeding gap 51; if the size of the feeding gap 51 is too small, it may affect the transportation of carbon paper to the material holding area 5. Therefore, when the angle of the trough plate 21 changes, it is necessary to adaptively adjust the gap between the trough plate 21 and the coating roller 3, that is, adaptively adjust the size of the feeding gap 51.

[0122] Specifically, in order to achieve the adjustment of the installation position of the trough plate 21 on the mounting plate 22 along the first direction, the trough assembly 2 also includes a trough plate position adjustment structure 25, and each mounting plate 22 is provided with a trough plate position adjustment structure 25. Along the spacing direction between the two mounting plates 22, the two ends of the trough plate 21 are respectively installed on a trough plate position adjustment structure 25, and the trough plate position adjustment structure 25 is used to adjust the installation position of the trough plate 21 so that the trough plate 21 can be adjusted in the direction close to or away from the coating roller 3.

[0123] More specifically, the trough plate position adjustment structure 25 includes a trough plate position adjustment plate 251 and a second locking member 252. The trough plate position adjustment plate 251 is fixedly connected to the mounting plate 22. There is a trough plate installation gap between the trough plate position adjustment plate 251 and the mounting plate 22. The end of the trough plate 21 is placed in the trough plate installation gap. The second locking member 252 passes through the trough plate position adjustment plate 251 and abuts against the trough plate 21, thereby clamping the end of the trough plate 21 in the trough plate installation gap.

[0124] Optionally, the number of the second locking members 252 is two.

[0125] Specifically, the slot plate position adjustment plate 251 includes a bottom plate 2511 and a side plate 2512 that are vertically connected, and the bottom plate 2511 and the side plate 2512 are both arranged along the first direction (i.e. Fig.10 The trough plate shown extends in the width direction).

[0126] The mounting plate 22 is fixedly connected to the inner surface of the side plate 2512 , and there is a slot plate mounting gap between the lower surface of the mounting plate 22 and the upper surface of the bottom plate 2511 . The second locking member 252 passes through the bottom plate 2511 and abuts against the slot plate 21 .

[0127] Optionally, the second locking member 252 is a screw, and a five-star handle is provided at one end of the second locking member 252 away from the mounting plate 22 .

[0128] Exemplarily, in this embodiment, the working process of the blade coating mechanism is as follows:

[0129] Step 1: Adjust the positions of the scraper 4 and the trough assembly 2 so that the scraper 4, the trough assembly 2 and the coating roller 3 quickly form a material holding area 5; specifically, in this step, the position of the scraper 4 is adjusted by the scraper lifting drive assembly 6, and the position of the trough assembly 2 is adjusted by the lateral movement assembly 24;

[0130] Step 2: Adjust the inclination angle of the trough plate 21 according to the type of slurry, and adjust the gap size of the feed gap 52 according to the required coating thickness; specifically, in this step, the inclination angle of the trough plate 21 is adjusted by rotating the mounting hole group of the mounting plate 22, and the adjustment of the gap size of the feed gap 52 is achieved by the feed gap adjustment component 7.

[0131] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A blade coating mechanism, characterized in that: include: Rack (1); A trough assembly (2) is mounted on the frame (1) in an angle-adjustable manner so as to adjust the inclination angle of the trough assembly (2) relative to the frame (1); A coating roller (3) is rotatably mounted on the frame (1), and the coating roller (3) is located at a lower end of the trough assembly (2); A scraper (4) is mounted on the frame (1), and the scraper (4) is spaced apart and located on the upper side of the coating roller (3). The material trough assembly (2), the coating roller (3) and the scraper (4) are jointly arranged to form a material holding area (5), and a material loading gap (51) exists between the material trough assembly (2) and the coating roller (3).

2. The blade coating mechanism according to claim 1, characterized in that: The trough assembly (2) comprises: Trough plate (21); A mounting plate (22), one mounting plate (22) is provided at each end of the material trough plate (21), the mounting plate (22) is mounted on the frame (1) with an adjustable angle, and the mounting plate (22), the material trough plate (21), the coating roller (3) and the scraper (4) are jointly arranged to form the material holding area (5).

3. The blade coating mechanism according to claim 2, characterized in that: The mounting plate (22) is provided with a mounting hole group, the mounting hole group comprising: a first hole (221); A first connecting member, the first connecting member being capable of passing through the first hole (221) and being connected to the frame (1); a second hole (222), the second hole (222) being a strip-shaped hole, and the second hole (222) extending along the circumference of a circle with the center of the first hole (221) as the center; A second connecting member, the second connecting member can be passed through the second hole (222) and connected to the frame (1).

4. The blade coating mechanism according to claim 2, characterized in that: The material trough assembly (2) further comprises two material trough baffles (23), the two material trough baffles (23) are arranged at intervals along the spacing direction between the two mounting plates (22), and the distance between the two material trough baffles (23) is adjustable, and the two material trough baffles (23), the material trough plate (21), the coating roller (3) and the scraper (4) are jointly arranged to form the material holding area (5).

5. The blade coating mechanism according to claim 2, characterized in that: Along a first direction, the mounting position of the trough plate (21) on the mounting plate (22) is adjustable to adjust the size of the feeding gap (51), and the first direction is parallel to the direction in which the trough plate (21) approaches or moves away from the coating roller (3).

6. The blade coating mechanism according to claim 5, characterized in that: The trough assembly (2) further comprises a trough plate position adjustment structure (25), each of the mounting plates (22) being provided with a trough plate position adjustment structure (25), and along the spacing direction between the two mounting plates (22), the two ends of the trough plate (21) are respectively mounted on a trough plate position adjustment structure (25), and the trough plate position adjustment structure (25) is used to adjust the mounting position of the trough plate (21), so that the trough plate (21) can be adjusted in a direction close to or away from the coating roller (3).

7. The blade coating mechanism according to claim 1, characterized in that: The installation position of the material trough assembly (2) on the frame (1) is adjustable so as to be close to or away from the coating roller (3).

8. The blade coating mechanism according to any one of claims 1 to 7, characterized in that: The scraper coating mechanism further comprises a scraper lifting drive assembly (6), wherein the scraper lifting drive assembly (6) is arranged on the frame (1), and the scraper (4) is connected to the output end of the scraper lifting drive assembly (6), and the scraper lifting drive assembly (6) can drive the scraper (4) to approach or move away from the coating roller (3).

9. The blade coating mechanism according to claim 8, characterized in that: The scraper lifting drive assembly (6) comprises: A lifting drive member (61) is arranged on the frame (1); A lifting block (62) is slidably arranged on the frame (1) along the movement direction of the scraper, the output end of the lifting drive member (61) is connected to the lifting block (62), and the scraper (4) is arranged on the lifting block (62).

10. The blade coating mechanism according to claim 9, characterized in that: The scraper coating mechanism further comprises a material feeding gap adjustment component (7), wherein the material feeding gap adjustment component (7) comprises: A first adjusting member (71) is fixedly arranged on the lower surface of the lifting block (62), and the lower surface of the first adjusting member (71) is provided with a first inclined surface (711) inclined relative to the lifting direction of the lifting block (62); The second adjusting member (72) is movably arranged on the frame (1) in a direction perpendicular to the lifting direction, and the lower surface of the second adjusting member (72) is provided with a second inclined surface (721) inclined relative to the lifting direction of the lifting block (62), and the first inclined surface (711) can descend to at least partially fit with the second inclined surface (721).

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