Die head gasket, die head and extrusion coating machine

Abstract

The utility model belongs to the technical field of pole piece processing, and discloses a die head gasket, a die head and an extrusion coating machine. The die head gasket comprises a gasket body, a flow adjusting module and an opening adjusting module. The gasket body is provided with a discharging opening, and slurry in a die head can flow out of the discharging opening to a die head nozzle. The flow adjusting module is detachably connected to the gasket body and can partially block the slurry from flowing into the inlet of the gasket body so as to adjust the flowing state of the slurry in the gasket body. The opening adjusting module is movably connected to the gasket body and can partially extend out of the discharging opening so as to adjust the opening width of the discharging opening. According to the die head gasket, the flowing uniformity of slurry can be effectively adjusted, all parts can be conveniently detached and replaced so as to meet diversified coating requirements, the flexibility and the operation convenience are improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrode processing technology, and in particular to a die head gasket, a die head, and an extrusion coating machine. Background Technology

[0002] The processing of electrode sheets includes steps such as coating, rolling, and slitting. Among these, the coating quality is crucial to the overall quality of the electrode sheet. Electrode coating typically utilizes an extrusion coating machine. The slurry is extruded from a die, and a narrow slit opening formed by a gasket within the die, directly facing the electrode, coats the surface of the electrode substrate with the slurry. After drying, the electrode sheet is formed. In this process, a roller or similar device is typically used to move the electrode substrate relative to the narrow slit opening of the die, ensuring that the slurry flowing from the die's slit opening is evenly coated across the entire electrode substrate.

[0003] The existing mold head design has the following problems:

[0004] The traditional die head has a relatively fixed adjustment structure for slurry flow, which is difficult to adapt to different process requirements. This leads to uneven flow rate distribution during slurry coating, which in turn affects the consistency of coating thickness and the stability of electrode quality.

[0005] The width of the narrow slit opening in the existing die head is difficult to adjust. When it is necessary to adjust the width of the narrow slit opening, it is usually necessary to replace the entire die head or the die head shim, which increases production costs, prolongs equipment debugging and downtime, and reduces production efficiency.

[0006] Traditional gaskets inside the die head are usually a single piece, which makes it impossible to replace individual components. This lack of flexibility leads to a complex gasket maintenance process and fails to meet the needs of efficient production and diversified coating.

[0007] Therefore, there is an urgent need for a die head gasket, a die head, and an extrusion coating machine to solve the above problems. Utility Model Content

[0008] According to one aspect of the present invention, the objective is to provide a die head gasket that can effectively adjust the uniformity of slurry flow, facilitate the disassembly and replacement of various components to adapt to diverse coating needs, improve flexibility and ease of operation, and reduce production costs.

[0009] To achieve this objective, the present invention adopts the following technical solution:

[0010] Die head gasket, including:

[0011] The gasket body is provided with a discharge opening, through which the slurry in the die head can flow to the die head nozzle.

[0012] A flow adjustment module is detachably connected to the gasket body and can partially block the inlet of the slurry flowing into the gasket body in order to adjust the flow state of the slurry in the gasket body.

[0013] An opening adjustment module is movably connected to the gasket body and can partially extend into the discharge opening to adjust the opening width of the discharge opening.

[0014] As a preferred embodiment of the mold head provided by this utility model, the gasket body has an installation groove, and the flow adjustment module includes a flow adjustment part and a connecting part. The connecting part is connected to the flow adjustment part and is detachably embedded in the installation groove. The flow adjustment part can partially change the flow path of the slurry flowing into the gasket body.

[0015] As a preferred embodiment of the mold head provided by this utility model, the flow adjustment part is semi-circular, triangular or rectangular.

[0016] As a preferred embodiment of the mold head provided by this utility model, the gasket body includes a first body part and two second body parts connected to both ends of the first body part, and at least one of the second body parts is provided with a sliding groove.

[0017] The opening adjustment module includes an adjustment member, which is movably disposed in the chute and can partially extend out of the chute to the discharge opening.

[0018] As a preferred embodiment of the mold head provided by this utility model, the two second body parts are respectively provided with the slide groove, and there are two opening adjustment modules, with the adjustment components of the two opening adjustment modules respectively disposed in the two slide grooves.

[0019] As a preferred embodiment of the mold head provided by this utility model, the adjusting member includes a guide part and an adjusting part. The adjusting part is movably disposed in the slide groove. One end of the adjusting part connected to the guide part can extend into the interior of the discharge opening, and the other end of the adjusting part extends out of the slide groove.

[0020] As a preferred embodiment of the mold head provided by this utility model, the opening adjustment module further includes a fixing member. The adjusting part and the side wall of the slide groove are provided with a plurality of fixing holes at intervals. The fixing member can pass through the end of the second body part and can extend into any of the fixing holes.

[0021] As a preferred embodiment of the mold head provided by this utility model, the width of the guide portion is greater than the width of the slide groove, and the end of the guide portion away from the adjustment portion is provided with a chamfer.

[0022] According to another aspect of the present invention, the object is to provide a mold head, the mold head including a first mold head body and a second mold head body, and further including a mold head gasket as described in any of the above embodiments, the mold head gasket being sandwiched between the first mold head body and the second mold head body, the second mold head body having a material leveling groove, the material leveling groove containing the slurry, the slurry being able to flow from the material leveling groove into the gasket body.

[0023] According to another aspect of the present invention, the object is to provide an extrusion coating machine, the extrusion coating machine comprising a die head as described above.

[0024] The beneficial effects of this utility model are:

[0025] The die head gasket provided by this utility model includes a gasket body, a flow adjustment module, and an opening adjustment module. The gasket body has a discharge opening through which slurry in the die head can flow to the die head nozzle. The flow adjustment module is detachably connected to the gasket body and can partially block the inlet of the slurry into the gasket body to adjust the flow state of the slurry within the gasket body. In other words, the flow adjustment module can effectively regulate the uniformity of slurry flow; the detachable design between the flow adjustment module and the gasket body allows the flow adjustment module to be disassembled and replaced according to actual coating requirements, adapting to diverse coating needs, improving flexibility, and reducing production costs. The opening adjustment module is movably connected to the gasket body and can partially extend into the discharge opening to adjust the opening width of the discharge opening. In other words, the opening width of the discharge opening can be adjusted to adapt to the coating needs of electrode substrates with different widths, adapting to diverse coating needs, improving flexibility and ease of operation, and reducing production costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the mold head provided in this embodiment of the utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the mold head provided in this embodiment of the utility model. Figure 2 ;

[0029] Figure 3This is a schematic diagram of the structure of the gasket body provided in this embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of a mold head gasket provided in an embodiment of the present utility model;

[0031] Figure 5 This is a schematic diagram of another type of mold head gasket provided in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of another type of mold head gasket provided in this embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the connection between the opening adjustment module and the gasket body provided in this embodiment of the utility model.

[0034] In the picture:

[0035] 10. First die head body; 11. First die head connecting hole; 20. Second die head body; 21. Equalizing groove; 22. Slurry inlet; 23. Second die head connecting hole;

[0036] 100, Gasket body; 110, Discharge opening; 120, Mounting groove; 130, Slide groove; 140, Gasket connection hole; 150, First body part; 160, Second body part;

[0037] 200. Flow adjustment module; 210. Flow adjustment section; 220. Connecting section;

[0038] 300. Opening adjustment module; 310. Adjusting component; 311. Fixing hole; 312. Guide part; 313. Adjusting part; 320. Fixing component. Detailed Implementation

[0039] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connect," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0047] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] This embodiment provides a die head gasket, a die head, and an extrusion coating machine. The extrusion coating machine includes a slurry source and the die head provided in this embodiment. The die head includes a first die head body 10 and a second die head body 20, and also includes the die head gasket provided in this embodiment. The die head gasket is sandwiched between the first die head body 10 and the second die head body 20. The second die head body 20 has a material leveling groove 21, which contains slurry. The slurry can flow from the material leveling groove 21 into the die head gasket between the first die head body 10 and the second die head body 20, and flow from the opening formed by the die head gasket to the electrode substrate.

[0049] Specifically, the second mold head body 20 is also provided with a slurry inlet 22. The slurry inlet 22 is connected to a slurry source, and the slurry in the slurry source can flow into the uniform trough 21 through the slurry inlet 22.

[0050] Figure 1 This diagram illustrates the structure of the mold head provided in an embodiment of the present invention. Figure 1 ; Figure 2 This diagram illustrates the structure of the mold head provided in an embodiment of the present invention. Figure 2 . Reference Figure 1 and Figure 2 The die head gasket provided in this embodiment includes a gasket body 100, a flow adjustment module 200, and an opening adjustment module 300.

[0051] Specifically, the gasket body 100 is provided with a discharge opening 110, through which the slurry in the die head can flow out to the die head nozzle. The flow adjustment module 200 is detachably connected to the gasket body 100 and can partially change the flow path of the slurry into the gasket body 100 to adjust the flow state of the slurry in the gasket body 100. The flow adjustment module 200 effectively adjusts the flow uniformity of the slurry; the detachable design between the flow adjustment module 200 and the gasket body 100 allows the flow adjustment module 200 to be disassembled and replaced according to actual coating requirements, adapting to diverse coating needs, improving flexibility, and reducing production costs.

[0052] More specifically, the opening adjustment module 300 is movably connected to the gasket body 100 and can partially extend into the range of the discharge opening 110 to adjust the opening width of the discharge opening 110. Through the opening adjustment module 300, the opening width of the discharge opening 110 can be adjusted to adapt to the coating requirements of electrode substrates of different widths, thus meeting diverse coating needs and improving flexibility and ease of operation.

[0053] Figure 3 This diagram shows the structure of the gasket body provided in an embodiment of the present invention; Figure 4 This diagram illustrates a mold head gasket provided in an embodiment of the present invention. (Refer to...) Figure 3 and Figure 4 The gasket body 100 has an installation groove 120 on one side of the discharge opening 110. The flow adjustment module 200 includes a flow adjustment part 210 and a connecting part 220. The connecting part 220 is connected to the flow adjustment part 210. In this embodiment, the connecting part 220 and the flow adjustment part 210 are integrally formed. The connecting part 220 is detachably embedded in the installation groove 120, and the flow adjustment part 210 can partially block the uniform material channel 21. In this embodiment, the flow adjustment part 210 specifically blocks the middle position of the uniform material channel 21. Based on the flow characteristics of the slurry flowing from the uniform material channel 21 to the die head gasket, the flow adjustment part 210 is provided at the middle position of the uniform material channel 21 for blocking. This allows the flow rate of the slurry in the width direction of the discharge opening 110 to be adjusted during the flow of the slurry from the uniform material channel 21 to the discharge opening 110, thereby improving the uniformity of its flow.

[0054] Specifically, the first mold head body 10 has multiple first mold head connection holes 11, the second mold head body 20 has multiple second mold head connection holes 23, and the gasket body 100 has multiple gasket connection holes 140. When installed in place, the first mold head connection holes 11, the second mold head connection holes 23, and the gasket connection holes 140 can correspond one-to-one. By using bolts or other fasteners to connect to the first mold head connection holes 11, the second mold head connection holes 23, and the gasket connection holes 140, the first mold head body 10, the second mold head body 20, and the mold head gasket can be reliably assembled.

[0055] Figure 5 This diagram illustrates another type of mold head gasket provided in an embodiment of the present invention; Figure 6 This diagram illustrates yet another type of mold head gasket provided in an embodiment of the present invention. (Refer to...) Figures 4-6 In this embodiment, the flow regulating part 210 is semi-circular, triangular, or rectangular. These different shapes regulate the flow rate of the slurry to varying degrees. By changing the geometry of the fluid channel, the pressure and flow rate of the slurry are evenly distributed, thereby forming a stable and uniform flow field during the slurry coating process, ensuring the consistency of the coating thickness and the uniformity of the surface quality. Specifically, the shape of the flow regulating part 210 can be flexibly selected according to actual coating requirements.

[0056] Figure 7 This diagram illustrates the structural connection between the opening adjustment module and the gasket body according to an embodiment of the present invention. (Refer to...) Figures 3-7 The gasket body 100 includes a first body portion 150 and two second body portions 160 connected to both ends of the first body portion 150, and at least one of the second body portions 160 is provided with a groove 130.

[0057] Specifically, the adjusting member 310 includes a guide portion 312 and an adjusting portion 313. The guide portion 312 is located inside the discharge opening 110, and the adjusting portion 313 is movably disposed within the chute 130. One end of the adjusting portion 313 connected to the guide portion 312 can extend into the discharge opening 110, and the other end of the adjusting portion 313 extends out of the chute 130. The guide portion 312 can guide the slurry, allowing it to flow smoothly out of the discharge opening 110. This configuration enables a detachable connection between the adjusting member 310 and the gasket body 100. By sliding the adjusting portion 313 within the chute 130 to change its position, the length of the adjusting portion 313 extending into the discharge opening 110 can be adjusted, i.e., the position of the guide portion 312 can be adjusted. The chute 130 serves to guide and limit the adjusting portion 313. With the above settings, the position of the adjusting component 310 can be quickly moved and slidably adjusted to change the width of the coating area, thus adapting to the production needs of electrode sheets of different specifications. This avoids the complex operation of frequently changing the die head shims due to changes in coating width, improving production efficiency and reducing adjustment costs.

[0058] Specifically, the width of the guide portion 312 is greater than the width of the slide groove 130, and a chamfer is provided at the end of the guide portion 312 away from the adjusting portion 313. This chamfer can be provided at the end of the guide portion 312 near the adjusting portion 313, or it can be provided at the end of the guide portion 312 away from the adjusting portion 313, such as... Figure 4-6 As shown. The chamfer described above can guide the flow of the slurry, and the position of the chamfer can be selected according to the actual needs of slurry flow adjustment.

[0059] More specifically, the opening adjustment module 300 also includes a fixing member 320. A plurality of fixing holes 311 are spaced apart on the mating surface of the adjustment part 313 and the side wall of the chute 130. The fixing member 320 can pass through the end of the second body part 160 and extend into any of the fixing holes 311. In this embodiment, the fixing member 320 can be a positioning pin. In this case, the inner wall of the corresponding fixing hole 311 is smooth. The adjustment member 310 and the gasket body 100 are positioned in a direction perpendicular to the fixing member 320, i.e., in the width direction of the discharge opening 110, through the insertion action of the fixing member 320.

[0060] Alternatively, in other embodiments, the fastener 320 may also be a bolt, which is spirally inserted into the gasket body 100 and screwed into the fixing hole 311, thereby improving the connection reliability and stability of the adjusting member 310 and the gasket body 100.

[0061] Preferably, each of the two second body parts 160 is provided with a chute 130, and there are two opening adjustment modules 300, with the adjustment members 310 of the two opening adjustment modules 300 respectively disposed in the two chute 130s. That is to say, through the above arrangement, the effective flow width of the discharge opening 110 can be adjusted evenly at both ends in the width direction, ensuring that the effective flow area of ​​the discharge opening 110 is aligned with the uniform material tank 21, thereby further improving the flow uniformity of the slurry.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A die head gasket, characterized in that, include: The gasket body (100) is provided with a discharge opening (110) through which the slurry in the die head can flow out to the die head nozzle. A flow adjustment module (200) is detachably connected to the gasket body (100) and can partially block the inlet of the slurry flowing into the gasket body (100) to adjust the flow state of the slurry in the gasket body (100). An opening adjustment module (300) is movably connected to the gasket body (100) and can partially extend into the discharge opening (110) to adjust the opening width of the discharge opening (110).

2. The die head gasket according to claim 1, characterized in that, The gasket body (100) has an installation groove (120). The flow adjustment module (200) includes a flow adjustment part (210) and a connecting part (220). The connecting part (220) is connected to the flow adjustment part (210) and is detachably embedded in the installation groove (120). The flow adjustment part (210) can partially change the flow path of the slurry into the gasket body (100).

3. The die head gasket according to claim 2, characterized in that, The flow regulating part (210) is semi-circular, triangular or rectangular.

4. The die head gasket according to claim 1, characterized in that, The gasket body (100) includes a first body part (150) and two second body parts (160) connected to both ends of the first body part (150), and at least one of the second body parts (160) is provided with a groove (130). The opening adjustment module (300) includes an adjustment member (310), which is movably disposed in the chute (130) and can partially extend out of the chute (130) to the discharge opening (110).

5. The die head gasket according to claim 4, characterized in that, The two second body parts (160) are respectively provided with the slide groove (130), and there are two opening adjustment modules (300). The adjustment members (310) of the two opening adjustment modules (300) are respectively provided in the two slide grooves (130).

6. The die head gasket according to claim 4, characterized in that, The adjusting member (310) includes a guide (312) and an adjusting part (313). The adjusting part (313) is movably disposed in the chute (130). One end of the adjusting part (313) connected to the guide (312) can extend into the interior of the discharge opening (110), and the other end of the adjusting part (313) extends out of the chute (130).

7. The die head gasket according to claim 6, characterized in that, The opening adjustment module (300) also includes a fixing member (320). The adjusting part (313) and the side wall of the slide groove (130) are provided with a plurality of fixing holes (311) at intervals. The fixing member (320) can pass through the end of the second body part (160) and can extend into any of the fixing holes (311).

8. The die head gasket according to claim 6, characterized in that, The width of the guide portion (312) is greater than the width of the slide groove (130), and the end of the guide portion (312) away from the adjustment portion (313) is provided with a chamfer.

9. A die head, characterized in that, The device includes a first mold head body (10) and a second mold head body (20), and also includes a mold head gasket as described in any one of claims 1-8. The mold head gasket is sandwiched between the first mold head body (10) and the second mold head body (20). The second mold head body (20) has a material leveling groove (21) which contains the slurry. The slurry can flow from the material leveling groove (21) into the gasket body (100).

10. An extrusion coating machine, characterized in that, Includes the mold head as described in claim 9.

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