Slit coating die
By setting a groove inside the coating die head and sliding the die lip, the problem of having to return the entire die head to the factory for repair in the prior art is solved, and quick replacement is achieved when the die lip is damaged, thus improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TRW ENERGY STORAGE (CHUZHOU) CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing technology, the integrated coating die head needs to be returned to the factory for repair after the lip is damaged, resulting in a waste of time and resources.
A slit coating die head is designed. By opening grooves in the upper and lower dies and sliding the die lip in the grooves, the damaged die lip can be separated from the die head, and only a new die lip accessory needs to be replaced.
This avoids the need for complete disassembly and return to the factory for repair, improving maintenance efficiency and saving maintenance time.
Smart Images
Figure CN224525134U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coating technology, specifically relating to a slit coating die head. Background Technology
[0002] The coating process is a crucial step in the production of new energy batteries. Whether it is energy storage cells or power cells, the production process involving electrode sheets cannot escape the coating step. Currently, the coating dies are usually integrated, meaning that the die head and die lip are made from a single piece of high-speed steel. Furthermore, the coating process requires extremely high straightness. If the die head is not cleaned properly, the lip may be bumped, resulting in bulging and dark marks during the coating process. In this case, the entire die head must be disassembled and sent back to the factory for repair, which takes a lot of time.
[0003] Therefore, a slit-type coating die head was designed to solve the technical problem that the existing one-piece coating die head needs to be returned to the factory for repair after the lip is damaged.
[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0005] This disclosure provides at least one slit-type coating die.
[0006] In a first aspect, embodiments of this disclosure provide a slit-type coating die, comprising:
[0007] The die head body includes an upper die head and a lower die head;
[0008] The upper and lower die heads are symmetrically provided with upper and lower sliding grooves on opposite sides;
[0009] The upper and lower sliding grooves are respectively provided with an upper mold lip and a lower mold lip; wherein
[0010] The upper and lower die lips are adapted to slide along the upper and lower sliding grooves opened inside the upper and lower die heads.
[0011] In one alternative embodiment, the upper groove includes:
[0012] An upper sliding mounting position is provided at the discharge end of the upper die head;
[0013] The upper sliding limit position is connected to the upper sliding mounting position; wherein
[0014] The upper die lip is adapted to be inserted into the upper sliding mounting position along the length direction of the upper die head and connected to the upper sliding limiting position.
[0015] In one alternative embodiment, the outer contour of the upper mold lip is adapted to the upper sliding mounting position;
[0016] An upper sliding limiter is provided on the end face of the upper mold lip facing the upper sliding limit position; wherein
[0017] The upper sliding limiter engages with the upper sliding limit position.
[0018] In one alternative implementation, the sliding groove includes:
[0019] The lower sliding mounting position is provided at the discharge end of the lower die head and is symmetrical to the upper sliding mounting position;
[0020] The downward sliding limit position is connected to the downward sliding mounting position; wherein
[0021] The lower die lip is adapted to be inserted into the lower sliding mounting position along the length direction of the lower die head and connected to the lower sliding limiting position.
[0022] In one alternative embodiment, the outer contour of the lower die lip is adapted to the lower sliding mounting position;
[0023] A downward sliding limiter is provided on the end face of the lower die lip facing the downward sliding limit position; wherein
[0024] The downward sliding limiter engages with the downward sliding limit position.
[0025] In one optional embodiment, an extruder for applying coating is provided on the outer wall of the upper die lip;
[0026] A lower coating extruder is provided on the outer wall of the lower die lip; wherein
[0027] The gap between the upper coating extruder and the lower coating extruder is the coating extrusion gap.
[0028] In one optional embodiment, the cross-sections of both the upper sliding limit position and the lower sliding limit position are triangular; wherein
[0029] The slots of the upper sliding limit position and the lower sliding limit position are opposite in direction; and
[0030] The upper sliding limit position and the lower sliding limit position are respectively opened along the long side of the upper die head and the lower die head.
[0031] The beneficial effect of this utility model is that the coating die head has upper and lower grooves correspondingly opened in the upper and lower die heads, and the upper and lower die lips are slidably installed in the corresponding upper and lower grooves. In this way, when the die lip is damaged, it is only necessary to slide the damaged die lip away from the corresponding die head and replace it with a new die lip accessory, avoiding the need to completely disassemble the coating die head and return it to the factory for repair.
[0032] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.
[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0035] Figure 1 This is a schematic diagram showing the overall disassembly of the coating die head provided in an embodiment of this disclosure;
[0036] Figure 2 This is a schematic diagram of the overall installation of the coating die head provided in an embodiment of this disclosure;
[0037] Figure 3 This is a magnified structural diagram of the coating die head provided in an embodiment of the present disclosure;
[0038] Figure 4 This is an enlarged schematic diagram of the overall installation of the coating die head provided in an embodiment of this disclosure.
[0039] In the picture:
[0040] 1. Die body;
[0041] 10. Upper die head; 100. Upper slide groove; 100a. Upper sliding mounting position; 100b. Upper sliding limit position; 101. Upper die lip; 101a. Upper sliding limit component; 101b. Upper coating extruder;
[0042] 11. Lower die head; 110. Lower slide groove; 110a. Lower sliding mounting position; 110b. Lower sliding limit position; 111. Lower die lip; 111a. Lower sliding limit component; 111b. Lower coating extruder;
[0043] 12. Coating extrusion gap. Detailed Implementation
[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0045] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0046] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0047] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0048] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0049] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0050] Research has revealed that the coating process is a crucial step in the production of new energy batteries. Whether it is energy storage cells or power cells, the production process involving electrode sheets cannot bypass the coating step. Currently, coating dies are commonly used as a single unit, meaning that the die head and die lip are made from a single piece of high-speed steel. Furthermore, the coating process requires extremely high straightness. If the die head is not cleaned properly, the lip may be bumped, resulting in bulging and dark marks during the coating process. In this case, the entire die head must be disassembled and sent back to the factory for repair, which takes a lot of time.
[0051] Based on the above research, this disclosure provides a slit-type coating die head. By opening upper and lower grooves in the upper and lower dies, and sliding the upper and lower dies lips in the corresponding upper and lower grooves, the dies can be installed in the upper and lower dies in a sliding manner. In this way, when the dies lip is damaged, the damaged dies lip can be slid away from the corresponding die head and a new dies lip accessory can be replaced, avoiding the need to disassemble the entire coating die head and return it to the factory for repair.
[0052] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0053] 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.
[0054] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0055] In some embodiments, such as Figure 1 and Figure 2As shown, the operator first inserts the upper mold lip 101 and the lower mold lip 111 into the corresponding upper slide groove 100 and lower slide groove 110 along the direction shown in F3, and then assembles the upper mold head 10 and the lower mold head 11 by bringing them close together along the directions of F1 and F2 respectively.
[0056] In some embodiments, such as Figure 3 and Figure 4 As shown, when the upper die lip 101 and the lower die lip 111 slide in the corresponding upper sliding mounting position 100a and lower sliding mounting position 111a, the upper sliding limiter 101a and the lower sliding limiter 111a provided on the opposite end faces of the two slide in the corresponding upper sliding limiter 100b and lower sliding limiter 110b. As can be seen from the figure, the cross section of each sliding limiter is preferably triangular, and the cross section shape of each sliding limiter is consistent with the cross section shape of the corresponding sliding limiter. By fitting the sliding limiter and the sliding limiter to each other, the corresponding die lip is fixed in the corresponding sliding mounting position. After the final installation is completed, the coating material is discharged from the coating extrusion gap 12 between the upper coating extruder 101b and the lower coating extruder 111b.
[0057] The specific cross-sectional shape of the upper and lower sliding limit positions (100b, 110b) includes, but is not limited to, using triangles, which form mortise and tenon structures with the upper sliding limit member 101a and the lower sliding limit member 111a respectively, so that the mold lip part can be quickly loaded and unloaded along the track formed by each sliding limit position. The triangular fixing groove is used to ensure that each mold lip can be stably fixed in the corresponding mold head.
[0058] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0059] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0060] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0061] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0062] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A slit-type coating die, characterized in that, include: The mold head body (1) includes an upper mold head (10) and a lower mold head (11). The upper mold head (10) and the lower mold head (11) are symmetrically provided with an upper sliding groove (100) and a lower sliding groove (110) on opposite sides. The upper groove (100) and the lower groove (110) are respectively provided with an upper mold lip (101) and a lower mold lip (111); wherein The upper die lip (101) and lower die lip (111) are adapted to slide along the upper sliding groove (100) and lower sliding groove (110) opened in the upper die head (10) and lower die head (11).
2. The slit-type coating die as described in claim 1, characterized in that, The upper slide (100) includes: An upper sliding mounting position (100a) is provided at the discharge end of the upper die head (10); The upper sliding limit position (100b) is connected to the upper sliding mounting position (100a); wherein The upper die lip (101) is adapted to be inserted into the upper sliding mounting position (100a) along the length direction of the upper die head (10) and connected to the upper sliding limiting position (100b).
3. The slit-type coating die head as described in claim 2, characterized in that, The outer contour of the upper mold lip (101) is adapted to the upper sliding mounting position (100a); An upper sliding limiter (101a) is provided on the end face of the upper mold lip (101) facing the upper sliding limit position (100b); wherein The upper sliding limiter (101a) engages with the upper sliding limit position (100b).
4. The slit-type coating die as described in claim 3, characterized in that, The slide groove (110) includes: The lower sliding mounting position (110a) is opened at the discharge end of the lower die head (11) and is symmetrical to the upper sliding mounting position (100a); The sliding limit position (110b) is connected to the sliding mounting position (110a); wherein The lower die lip (111) is adapted to be inserted into the lower sliding mounting position (110a) along the length direction of the lower die head (11) and connected to the lower sliding limiting position (110b).
5. The slit-type coating die as described in claim 4, characterized in that, The outer contour of the lower mold lip (111) is adapted to the lower sliding mounting position (110a); A lower sliding limiter (111a) is provided on the end face of the lower die lip (111) facing the lower sliding limit position (110b); wherein The downward sliding limiter (111a) engages with the downward sliding limit position (110b).
6. The slit-type coating die head as described in claim 5, characterized in that, The cross-sections of both the upper sliding limit position (100b) and the lower sliding limit position (110b) are triangular; wherein The upper sliding limit position (100b) and the lower sliding limit position (110b) are oriented opposite to each other; and The upper sliding limit position (100b) and the lower sliding limit position (110b) are respectively opened along the long side direction of the upper mold head (10) and the lower mold head (11).
7. The slit-type coating die as described in claim 1, characterized in that, An extruded coating material (101b) is provided on the outer wall of the upper die lip (101). A lower coating extruder (111b) is provided on the outer wall of the lower die lip (111); wherein The gap between the upper coating extruder (101b) and the lower coating extruder (111b) is the coating extrusion gap (12).