Coating head and coating machine

Abstract

The utility model discloses a coating head and a coating machine, the coating head is provided with a material cavity, and the coating head comprises a first die body and a second die body, the second die body is in butt joint with the first die body in the first direction, the second die body is provided with a containing cavity extending in the second direction, the second die body is further provided with at least two feeding ports, and the feeding ports communicate with the containing cavity; the bottom support extends in the second direction, the bottom support is arranged in the containing cavity, a transition connecting hole is formed in the bottom support, and the transition connecting hole is in butt joint with the outlet end of the feeding port; the separating part comprises at least one separating block and is connected with the bottom support, the separating blocks can be installed at different positions of the bottom support in the second direction, and the separating part is used for separating the material cavity into at least two sub-cavities. According to the coating head, preparation of coating layers with different widths can be achieved, the types of the coating head can be reduced so that management can be facilitated, the cost can be reduced, and the coating head can also be used for modifying an existing coating head.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a coating head and a coating machine. Background Technology

[0002] Coating machines are crucial equipment in the production of battery electrodes, including coating heads. A coating head has a material chamber and an outlet. The material chamber allows the introduction of coating slurries with specific functions, such as adhesives, paints, and inks. These slurries are then applied to the surface of the substrate through the outlet to form a coating layer. In related technologies, coating heads can only produce coating layers of a single width. To meet the requirements for preparing coating layers of different widths, multiple coating heads need to be pre-designed, resulting in a large number of coating head models, inconvenient management, and high costs.

[0003] Therefore, how to provide a solution to overcome or alleviate the above-mentioned defects remains a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a coating head and a coating machine, wherein the coating head can prepare coatings of different widths, reduce the number of coating head models for easier management, reduce costs, and can also be used to modify existing coating heads.

[0005] To solve the above-mentioned technical problems, this utility model provides a coating head having a material cavity. The coating head includes: a first mold body; a second mold body, which is disposed opposite to and connected to the first mold body along a first direction, the second mold body having a receiving chamber extending along a second direction at an angle to the first direction, the second mold body also having at least two inlets connected to the receiving chamber; a base extending along the second direction, the base being disposed in the receiving chamber, the base having transition connecting holes, the number of transition connecting holes being consistent with the number of inlets, and the transition connecting holes being connected to the outlet end of the inlets; the material cavity including the space in the receiving chamber excluding the space occupied by the base; and a separating component including at least one partition block connected to the base, the partition block being installable at different positions of the base in the second direction, the separating component being used to divide the material cavity into at least two sub-cavities.

[0006] In the above-described embodiment, by adding a base and dividing components to the second mold body, the accommodating chamber on the second mold body can be divided into multiple sub-cavities. The dimensions of each sub-cavity in the second direction can be relatively small, thereby meeting the requirements for preparing a coating layer with a smaller width. Furthermore, as the dimensions of the sub-cavities decrease in the second direction, the pressure of the coating slurry in each region within the sub-cavities can tend to be uniform, which is more conducive to ensuring the consistency of the areal density of the formed coating layer and improving the quality of the coating layer.

[0007] In actual production, the pressure of the coating slurry in each chamber can be inconsistent, and correspondingly, the areal density of the coating layer prepared through each chamber can also be inconsistent. Thus, the coating head provided in this embodiment can also be used to simultaneously prepare coating layers of the same material (or different materials) with different areal densities, greatly improving the flexibility and versatility of production.

[0008] Furthermore, the mounting position of the partition block on the base is adjustable, which allows for adjustment of the dimensions of the corresponding cavity in the second direction. This enables adjustment of the coating width to meet the requirements for preparing coatings of different widths. In other words, this embodiment of the invention provides only one coating head, which can prepare coatings of different widths on the surface of the substrate. This significantly reduces the number of coating head models, facilitating management and lowering costs.

[0009] More importantly, the solution provided by this utility model embodiment does not require any changes to the structure of the first mold and the second mold, but only adds a base and a dividing component. This makes the solution provided by this utility model embodiment applicable to the modification of existing coating heads, thereby reducing the application cost of the solution provided by this utility model embodiment to a greater extent.

[0010] This utility model also provides a coating machine, including the coating head described above.

[0011] Since the aforementioned coating head already possesses the above-mentioned technical effects, the coating machine with the coating head should also possess similar technical effects, so it will not be elaborated here. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of one implementation of the coating head provided in an embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of the structure after removing the first phantom;

[0014] Figure 3 for Figure 2 A schematic diagram of the structure after removing the sealing gasket;

[0015] Figure 4 for Figure 3 Exploded view;

[0016] Figure 5 for Figure 1 A cross-sectional view perpendicular to the second direction shows the feed inlet and the sealing block;

[0017] Figure 6 for Figure 1 A cross-sectional view perpendicular to the second direction shows the partition block;

[0018] Figure 7 for Figure 6 Connection structure diagram of the central partition block and the base;

[0019] Figure 8 This is a schematic diagram of the sealing block structure;

[0020] Figure 9 This is a structural schematic diagram of one implementation of the coating machine provided in this utility model embodiment.

[0021] Figure label:

[0022] 1000 - Coating head; 1000A - Material cavity; 1000A1 - Dividing cavity; 1000B - Discharge port; 1100 - First mold body; 1200 - Second mold body; 1210 - Receiving chamber; 1220 - Inlet; 1221 - First channel section; 1222 - Second channel section; 1300 - Base support; 1310 - First plate; 1311 - Transition connection hole; 1312 - First bonding surface; 1320 - Second plate section; 1321 - Second mating surface; 1400 - Separator component; 1410 - Partition block; 1411 - Main body section; 1412 - Protrusion section; 1500 - Sealing gasket; 1510 - Main strip section; 1520 - Side strip section; 1530 - Pressure strip section; 1600 - Sealing block; 1610 - First block; 1611 - Protrusion; 1620 - Second block; 1621 - Recess;

[0023] 2000-material tank;

[0024] 3000 - Feed pipe; 3100 - Switch valve;

[0025] 4000 - Pump body. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of the embodiments of this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0028] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0029] In the description of embodiments of this utility model, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] Please refer to Figures 1-8 , Figure 1 This is a structural schematic diagram of one implementation of the coating head provided in an embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the structure after removing the first phantom; Figure 3 for Figure 2 A schematic diagram of the structure after removing the sealing gasket; Figure 4 for Figure 3 Exploded view; Figure 5 for Figure 1 A cross-sectional view perpendicular to the second direction shows the feed inlet and the sealing block; Figure 6 for Figure 1 A cross-sectional view perpendicular to the second direction shows the partition block; Figure 7 for Figure 6 Connection structure diagram of the central partition block and the base; Figure 8 This is a schematic diagram of the sealing block.

[0031] like Figures 1-6 As shown, this embodiment of the utility model provides a coating head 1000, which has a material cavity 1000A for introducing coating slurries such as adhesives, paints, and inks with specific functions. The coating head 1000 includes a first mold body 1100, a second mold body 1200, a base 1300, and a separating component 1400.

[0032] The first mold 1100 and the second mold 1200 constitute the main structure of the coating head 1000. The first mold 1100 and the second mold 1200 can be arranged opposite each other along a first direction X. Furthermore, the first mold 1100 and the second mold 1200 can be connected, and the specific connection method can be, for example, screw connection, snap-fit, riveting, etc., which is not limited here, as long as the reliability of the connection can be guaranteed. A discharge port 1000B can be formed between the first mold 1100 and the second mold 1200.

[0033] The second mold body 1200 is provided with a receiving chamber 1210 extending along a second direction Y. The second direction Y is set at an angle to the first direction X, such as 90 degrees, etc., and is not limited here. It should be understood that the second direction Y here is the width direction in which the coating head 1000 coats and forms a coating layer on the substrate surface. The second mold body 1200 is also provided with at least two feed ports 1220. The feed ports 1220 are connected to the receiving chamber 1210, and the feed ports 1220 are also used to connect to external equipment to introduce coating slurry into the receiving chamber 1210.

[0034] The base 1300 extends along the second direction Y, and its dimensions in the second direction Y are substantially the same as those of the receiving chamber 1210. The base 1300 is disposed within the receiving chamber 1210 and is provided with transition connection holes 1311. The number of transition connection holes 1311 is the same as that of the feed inlet 1220, and the transition connection holes 1311 are aligned with the outlet end of the feed inlet 1220, meaning that the transition connection holes 1311 can communicate with the feed inlet 1220. The material cavity 1000A includes the space within the receiving chamber 1210 excluding the space occupied by the base 1300.

[0035] The partition member 1400 includes at least one partition block 1410. The partition block 1410 is connected to the base support 1300. Furthermore, the partition block 1410 can be installed at different positions on the base support 1300 in the second direction Y, that is, the installation position of the partition block 1410 on the base support 1300 is adjustable. The partition member 1400 is used to divide the material cavity 1000A into at least two sub-cavities 1000A1.

[0036] By adopting the above-described solution, this embodiment of the invention, through the addition of a base support 1300 and a partition component 1400 to the second mold 1200, divides the receiving chamber 1210 on the second mold 1200 into multiple sub-cavities 1000A1. The dimensions of each sub-cavity 1000A1 in the second direction Y can be relatively small, thereby meeting the requirements for preparing a coating layer with a smaller width. Furthermore, as the dimensions of the sub-cavities 1000A1 decrease in the second direction Y, the pressure of the coating slurry in each region within the sub-cavities 1000A1 tends to be more uniform, which is more conducive to ensuring the consistency of the areal density of the formed coating layer and improving the quality of the coating layer.

[0037] In actual production, the pressure of the coating slurry in each chamber 1000A1 can be inconsistent, and correspondingly, the areal density of the coating layer prepared through each chamber 1000A1 can also be inconsistent. Thus, the coating head 1000 provided in this embodiment can also be used to simultaneously prepare coating layers of the same material (or different materials) with different areal densities, which can greatly improve the flexibility and diversity of production.

[0038] Furthermore, in the above-described scheme, the mounting position of the partition block 1410 on the base 1300 is adjustable, which allows for adjustment of the dimensions of the corresponding cavity 1000A1 in the second direction Y. This enables adjustment of the coating width to meet the requirements for preparing coatings of different widths. In other words, this embodiment of the invention provides only one coating head 1000, which can prepare coatings of different widths on the surface of the substrate. This significantly reduces the number of coating head models 1000, facilitating management and reducing costs.

[0039] More importantly, the solution provided by this embodiment does not require any changes to the structure of the first mold 1100 and the second mold 1200, but only adds a base support 1300 and a separating component 1400. This allows the solution provided by this embodiment to be applied to modify existing coating heads, thereby significantly reducing the application cost of the solution provided by this embodiment. It should be understood that modifying an existing coating head to obtain the coating head 1000 provided by this embodiment is only one way to obtain the coating head 1000, but not the only way. In fact, the coating head 1000 can also be a completely new product, that is, the coating head 1000 can have the above-described structure when the equipment leaves the factory.

[0040] In some alternative implementations, such as Figure 4As shown, the base 1300 can be generally shaped as an L-shaped plate, and the base 1300 can include a first plate portion 1310 and a second plate portion 1320 connected to each other. The first plate portion 1310 and the second plate portion 1320 can be arranged at an angle, such as 90 degrees, etc., which is not limited here.

[0041] The receiving chamber 1210 may have a bottom wall and two first side walls disposed opposite each other along a third direction Z. The third direction Z and the aforementioned first direction X and second direction Y may be disposed at an angle, such as 90 degrees, etc., which is not limited here.

[0042] The first plate portion 1310 can be fitted to the bottom wall of the receiving chamber 1210, and the aforementioned transition connection hole 1311 can specifically be provided in the first plate portion 1310. At the same time, the second plate portion 1320 can also be fitted to a first side wall of the receiving chamber 1210. Both the first plate portion 1310 and the second plate portion 1320 can be fitted to the partition block 1410.

[0043] In the above scheme, the base support 1300 can shield the transition connection between the bottom wall of the receiving chamber 1210 and the two first side walls, thus concealing the relatively uneven areas of the walls in the receiving chamber 1210. Then, the partition block 1410 can be directly attached to the first plate portion 1310 and the second plate portion 1320. Both the partition block 1410 and the base support 1300 are new components, and their contact points can be matched to ensure a reliable fit between them, thereby improving the isolation effect of each cavity 1000A1 and reducing mutual interference between them.

[0044] like Figure 6 and Figure 7 As shown in this embodiment of the invention, the partition block 1410 may include a main body portion 1411 and a protrusion portion 1412. Specifically, the protrusion portion 1412 may be located on the side of the main body portion 1411 in the third direction Z. The main body portion 1411 may be configured to fit against the first plate portion 1310 along the first direction X, and the protrusion portion 1412 may be configured to fit against the second plate portion 1320 along the first direction X. The main body portion 1411 may also be configured to fit against the second plate portion 1320 along the third direction Z. In this way, a relatively reliable fit can be achieved between the partition block 1410 and the base support 1300.

[0045] The first plate portion 1310 may have a first mating surface 1312 that fits against the main body portion 1411, and the second plate portion 1320 may have a second mating surface 1321 that fits against the main body portion 1411. The first mating surface 1312 and the second mating surface 1321 may be in contact, and the included angle between them may be an obtuse angle. In this way, the second mating surface 1321 can also guide the partition block 1410, which can improve the ease of installation of the partition block 1410, and at the same time, it is also more conducive to ensuring a tight fit between the partition block 1410 and the base support 1300.

[0046] After installation, the side of the partition block 1410 facing the first mold 1100 can be flush with the side of the second mold 1200 facing the first mold 1100.

[0047] It should be understood that in some other implementations of this utility model, the base 1300 and the partition block 1410 can also adopt other structural forms, as long as they can meet the usage requirements. For example, the base 1300 may only include the first plate portion 1310. In this case, the partition block 1410 can not only fit with the first plate portion 1310, but also fit with the two first side walls of the receiving chamber 1210. As another example, the partition block 1410 may only include the main body portion 1411. In this case, the side of the second plate portion 1320 facing the first mold body 1100 may also be flush with the side of the second mold body 1200 facing the first mold body 1100.

[0048] The partition block 1410 and the base support 1300 can be connected using screws or other connectors. In this case, the base support 1300 can have multiple connection holes, and the partition block 1410 can be fixedly installed in different connection holes to adjust its installation position within the receiving chamber 1210. Alternatively, the partition block 1410 can be connected to the base support 1300 by a snap-fit ​​method. In this case, the partition block 1410 can have a snap-fit ​​part, and the base support 1300 can have multiple snap-fit ​​mating parts. The partition block 1410 can be snapped into different snap-fit ​​mating parts to adjust its installation position within the receiving chamber 1210. Alternatively, the partition block 1410 and the base 1300 can be magnetically connected. In this way, the connection structure between the partition block 1410 and the base 1300 can be simpler, and the installation position of the partition block 1410 can be adjusted more easily.

[0049] like Figure 2As shown, the coating head 1000 provided in this embodiment of the present invention may further include a sealing gasket 1500. The sealing gasket 1500 is detachably disposed between the first mold body 1100 and the second mold body 1200 to ensure the sealing performance at the joint of the first mold body 1100 and the second mold body 1200, and to better prevent the overflow of the coating slurry.

[0050] The sealing gasket 1500 may include a main strip 1510, two side strips 1520, and a pressure strip 1530. The main strip 1510 may extend along a second direction Y, and the main strip 1510 may be located on the third direction Z side of the receiving chamber 1210. The two side strips 1520 may be located on both sides of the receiving chamber 1210 in the second direction Y. The number of pressure strips 1530 may be consistent with the number of partition blocks 1410, and the pressure strips 1530 and partition blocks 1410 may be arranged in a one-to-one correspondence, with the pressure strips 1530 covering the partition blocks 1410 along a first direction X.

[0051] After the first mold body 1100 and the second mold body 1200 are connected and fixed, the first mold body 1100 can press the sealing gasket 1500, and the pressure strip part 1530 can press the partition block 1410. A discharge port 1000B can be formed between the first mold body 1100, the second mold body 1200, the side strip part 1520 and the pressure strip part 1530.

[0052] Here, the specific connection method of the sealing gasket 1500 is not limited in this embodiment. In practical applications, those skilled in the art can choose according to specific needs, as long as it can meet the requirements of use. For example, the sealing gasket 1500 can be detachably connected to the second mold body 1200 by means of fasteners such as screws.

[0053] In this embodiment of the invention, various forms of coating heads 1000 can be formed by varying the number and installation positions of the partition blocks 1410. Furthermore, the required structure of the sealing gasket 1500 can differ for each form of coating head 1000. Therefore, when adjusting the number and installation positions of the partition blocks 1410, the sealing gasket 1500 can be replaced simultaneously to ensure that the sealing gasket 1500 has a pressure strip portion 1530 with a number consistent with the number of partition blocks 1410, and that the position of the pressure strip portion 1530 corresponds to that of the partition blocks 1410.

[0054] The aforementioned sealing gasket 1500 can be a one-piece molded structure.

[0055] Alternatively, in the aforementioned sealing gasket 1500, the main strip 1510 and the side strip 1520 can be integrally molded to form the body of the sealing gasket 1500, while the pressure strip 1530 can be manufactured separately and then detachably connected to the body. Furthermore, the mounting position of the pressure strip 1530 on the body can be adjusted to accommodate changes in the number and mounting position of the partition blocks 1410. This reduces the number of types of sealing gaskets 1500, facilitating gasket management and lowering costs.

[0056] Regarding the implementation of the pressure strip part 1530 and the body part as a separate structure, the pressure strip part 1530 and the body part can be connected by a detachable connection method such as screw connection or snap-fit, so as to facilitate the adjustment of the installation position of the pressure strip part 1530.

[0057] In some alternative implementations, the coating head 1000 provided in this embodiment of the invention may further include a blocking block 1600. The blocking block 1600 is used to block at least a portion of the feed inlet 1220 in order to adjust the amount of feed inlet 1220 used.

[0058] Here, the present invention does not limit the specific structural form of the sealing block 1600. In practical applications, those skilled in the art can determine it according to the specific structural form of the feed inlet 1220, as long as it can meet the needs of use.

[0059] Combination Figure 5 and Figure 8 In the implementation shown in the attached drawings, the feed inlet 1220 may include a first channel segment 1221 and a second channel segment 1222. The first channel segment 1221 and the second channel segment 1222 may be connected, and the first channel segment 1221 and the second channel segment 1222 may be arranged at an angle, such as 90 degrees, etc., which is not limited here. The second channel segment 1222 may be connected to the transition connection hole 1311. The sealing block 1600 may include a first block 1610 and a second block 1620, wherein the first block 1610 may be inserted into the first channel segment 1221, and the second block 1620 may be inserted into the second channel segment 1222, so as to seal the first channel segment 1221 and the second channel segment 1222 respectively.

[0060] The first block 1610 may be provided with a protrusion 1611, and the second block 1620 may be provided with a recess 1621. When the first block 1610 is inserted into the first channel segment 1221 and the second block 1620 is inserted into the second channel segment 1222, the protrusion 1611 can also be inserted into the recess 1621 to achieve a locking connection between the first block 1610 and the second block 1620. In this way, the first block 1610 is not easily dislodged from the first channel segment 1221, and the second block 1620 is not easily dislodged from the second channel segment 1222, thus ensuring a high level of reliability in the connection between the first block 1610 and the second block 1620.

[0061] It should be understood that in some other implementations of this utility model, the positions of the protrusion 1611 and the recess 1621 can be interchanged. That is, the protrusion 1611 can be disposed on the second block 1620, and the recess 1621 can be disposed on the first block 1610. In addition, without changing the shape of the feed inlet 1220, the sealing block 1600 can also include only the second block 1620, which is also feasible.

[0062] Please refer to Figure 9 , Figure 9 This is a structural schematic diagram of one implementation of the coating machine provided in this utility model embodiment.

[0063] like Figure 9 As shown, this utility model embodiment also provides a coating machine, including the coating head 1000 involved in the aforementioned implementations. Since the aforementioned coating head 1000 already has the above-mentioned technical effects, the coating machine having the coating head 1000 should also have similar technical effects, so it will not be described in detail here.

[0064] The aforementioned coating machine may further include a material tank 2000 and feed pipes 3000. The number of feed pipes 3000 can be the same as the number of feed inlets 1220, and each feed pipe 3000 can be connected to each feed inlet 1220 in a one-to-one correspondence. Furthermore, each feed pipe 3000 can be equipped with a switching valve 3100, which can be a proportional valve or similar device, to separately control the flow rate of each feed pipe 3000, thereby enabling better individual adjustment of the pressure of the coating slurry in each compartment 1000A1.

[0065] The aforementioned material tank 2000 may be equipped with only one pump body 4000, which provides pumping force to each feed pipe 3000 for conveying the coating slurry in the material pipe 2000 to the material chamber 1000A through each feed pipe 3000. In this implementation, the number of pump bodies 4000 can be relatively small, which can reduce the structural complexity of the coating machine provided by this utility model embodiment and reduce costs.

[0066] In practical use, if there are multiple material tanks 2000, an equal number of pumps 4000 can be configured, and each pump 4000 can provide pumping force for the coating slurry in each material tank 2000.

[0067] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A coating head, characterized in that, The coating head has a material chamber, and the coating head includes: First motif; The second mold body is disposed opposite to the first mold body along a first direction and connected to the first mold body. The second mold body is provided with a receiving cavity extending along a second direction, which is at an angle to the first direction. The second mold body is also provided with at least two feed ports, which are connected to the receiving cavity. A base extending along the second direction is disposed in the receiving chamber. The base is provided with transition connection holes, the number of which is consistent with the feed inlet, and the transition connection holes are connected to the outlet end of the feed inlet. The material cavity includes the space in the receiving chamber excluding the space occupied by the base. A separating component, including at least one partition block, is connected to the base and the partition block can be installed at different positions of the base in the second direction. The separating component is used to divide the material cavity into at least two compartments.

2. The coating head according to claim 1, characterized in that, The base includes a first plate and a second plate connected to each other, the first plate and the second plate being arranged at an angle, the first plate being in contact with the bottom wall of the receiving chamber, the second plate being in contact with the side wall of the receiving chamber, and both the first plate and the second plate being in contact with the partition block.

3. The coating head according to claim 2, characterized in that, The partition block includes a main body and a protrusion. The main body is attached to the first plate along the first direction, and the protrusion is attached to the second plate along the first direction. The main body is also attached to the second plate along a third direction. The third direction is set at an angle to the first direction, and the third direction is also set at an angle to the second direction.

4. The coating head according to claim 3, characterized in that, The first plate portion has a first contact surface that fits into the main body portion, and the second plate portion has a second contact surface that fits into the main body portion. The included angle between the first contact surface and the second contact surface is an obtuse angle.

5. The coating head according to any one of claims 1-4, characterized in that, It also includes a sealing gasket, which is detachably disposed between the first mold body and the second mold body; The sealing gasket includes a main strip, two side strips, and a pressure strip. The main strip extends along the second direction, and the two side strips are located on both sides of the receiving chamber in the second direction. The number of pressure strips is consistent with the number of partition blocks, and the pressure strips can cover the partition blocks along the first direction.

6. The coating head according to claim 5, characterized in that, The sealing gasket is a one-piece molded structure; or, The main strip and the two side strips are integrally formed as a single structure to combine and form the body of the sealing gasket. The pressure strip is detachably connected to the body and can be installed at different positions of the body in the second direction.

7. The coating head according to any one of claims 1-4, characterized in that, It also includes a blocking block for blocking at least a portion of the feed inlet.

8. The coating head according to claim 7, characterized in that, The feed inlet includes a first channel section and a second channel section, which are connected and set at an angle to each other. The second channel section is connected to the transition connection hole. The blocking block includes a first block and a second block, wherein the first block is inserted into the first channel segment and the second block is inserted into the second channel segment.

9. The coating head according to claim 8, characterized in that, One of the first block and the second block is provided with a protrusion, and the other of the first block and the second block is provided with a recess, wherein the protrusion can be inserted into the recess.

10. A coating machine, characterized in that, Includes the coating head as described in any one of claims 1-9.

11. The coating machine according to claim 10, characterized in that, It also includes a material tank and a feeding pipe, the number of which is consistent with the number of the feeding ports. Each feeding pipe is connected to each feeding port in a one-to-one correspondence, and each feeding pipe is equipped with a switch valve.

12. The coating machine according to claim 11, characterized in that, The tank is equipped with a pump.

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