WO2023246155A1 - 涂布模头及涂布机 - Google Patents

涂布模头及涂布机 Download PDF

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Publication number
WO2023246155A1
WO2023246155A1 PCT/CN2023/078693 CN2023078693W WO2023246155A1 WO 2023246155 A1 WO2023246155 A1 WO 2023246155A1 CN 2023078693 W CN2023078693 W CN 2023078693W WO 2023246155 A1 WO2023246155 A1 WO 2023246155A1
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WO
WIPO (PCT)
Prior art keywords
spoiler
coating
base
die head
outlet
Prior art date
Application number
PCT/CN2023/078693
Other languages
English (en)
French (fr)
Inventor
翁志容
姜亮
陆雷
张盛武
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP23745374.1A priority Critical patent/EP4321263A1/en
Priority to US18/226,787 priority patent/US20240001397A1/en
Publication of WO2023246155A1 publication Critical patent/WO2023246155A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
    • B05C11/1023—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to velocity of target, e.g. to web advancement rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of power batteries, and more specifically, to a coating die and a coating machine.
  • Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection.
  • battery technology is an important factor related to their development.
  • extrusion coating is often used to prepare pole pieces.
  • the consistency of the cell capacity is a key parameter to measure the electrical performance, and the consistency of the cell capacity is determined by the consistency of the coating weight.
  • the extrusion speed In order to ensure the consistency of coating weight, the extrusion speed needs to be controlled. Using traditional coating equipment, when coating different slurries, it is impossible to ensure the consistency of the extrusion speed of each slurry in the coating width direction, thus affecting the coating quality.
  • this application discloses a coating die and a coating machine.
  • this application provides a coating die, including:
  • the coating body includes a first die head and a second die head that are separately arranged.
  • the first die head and the second die head are spliced and defined to form a receiving cavity; the opposite ends of the coating body are respectively A coating inlet and a coating outlet connected to the accommodation cavity are provided; and
  • the spoiler component defines a flow channel with the cavity wall of the accommodation cavity; the spoiler component is adjustably disposed in the accommodation cavity.
  • the flow channel defined by the spoiler component and the cavity wall of the accommodation cavity changes with the adjustment of the spoiler component in the accommodation cavity to meet different coating requirements.
  • Viscosity of the slurry required That is, when slurries of different viscosities need to be coated, the flow disturbance assembly is adjusted to change the flow channel so that the changed flow channel matches the viscosity of the slurry, thereby adjusting the flow of the slurry in the flow channel.
  • resistance to adjust the extrusion speed distribution to ensure different viscosity The consistency of the extrusion speed of the slurry in the coating width direction through the coating outlet is achieved, thereby achieving the purpose of improving product quality.
  • the volume, shape and/or position of the spoiler assembly is adjustable; and/or
  • the spoiler assembly is replaceably disposed in the accommodation cavity.
  • the volume, shape and/or position of the spoiler component; and/or the spoiler component can be replaceably disposed in the accommodating cavity, so that the spoiler component and the cavity wall of the accommodating cavity define different flow channels to meet the requirements of the coating Requirements for distributing slurries of different viscosities.
  • the spoiler assembly includes at least one spoiler, the number of spoilers in the spoiler assembly is adjustable and/or the shape and/or position of the spoiler can be changed. Adjustably arranged in the accommodation cavity.
  • the extrusion speed can be ensured to be uniform.
  • the spoiler includes a spoiler base and at least one spoiler stack, and the spoiler base is fixed in the accommodation cavity;
  • the spoiler stack is detachably connected to the spoiler base.
  • the spoiler stack is detachably connected to the spoiler base, and at least part of the spoiler stack is located upstream and downstream of the spoiler base along the direction of slurry movement. /or downstream.
  • the spoiler stack is located upstream and/or downstream of the flow base, so that the length of the spoiler assembly can be adjusted in the layout direction to ensure consistency of the extrusion speed.
  • the spoiler base is an I-shaped structure, and the I-shaped structure has two grooves for accommodating the spoiler stack, and the two grooves are respectively facing the spoiler stack.
  • the spoiler base is pressed between the first die head and the second die head and fixed.
  • the spoiler base can be fixed in the accommodating cavity under the pressure of the first die head and the second die head, avoiding the need for additional components to fix the spoiler base in the accommodating cavity, and simplifying the coating process. Based on the structure of the cloth die head, it avoids the installation of additional components in the containing cavity to interfere with the flow of slurry.
  • the first die head has a first abutment surface
  • the second die head has a second abutment surface spaced apart from the first abutment surface
  • the first contact surface and the second contact surface respectively abut against the two end planes of the spoiler base. Since the first contact surface and the second contact surface respectively offset the two end surfaces of the spoiler base in the layout direction, it is ensured that there is no gap between the two end surfaces of the spoiler base in the first direction and the die head.
  • the material can only flow from both sides of the spoiler base in the coating width direction to the coating outlet, which strengthens the flow blocking and diverting functions of the spoiler.
  • the accommodation cavity includes a first part and a second part that communicate with each other, and the second part is connected to The coating inlet is connected, the first part is connected with the coating outlet, the height of the first part gradually decreases from one end connected with the second part to the other end, and the spoiler base is fixed on within said second part; and/or
  • the accommodation chamber includes a second part and a third part that are connected to each other.
  • the third part is connected to the coating inlet.
  • the second part is connected to the coating outlet.
  • the third part is connected to the coating outlet.
  • the height of the second part connected from one end to the other end gradually decreases, and the base is fixedly installed in the second part.
  • the spoiler assembly further includes a fixing piece, and the fixing piece is passed through the spoiler base and the spoiler stack to fix the two. Fixing pieces are provided to facilitate the mutual fixation of the spoiler base and other spoiler stacks installed on it, thereby ensuring the reliability of the connection.
  • the spoiler assembly includes at least two fixing pieces, and the fixing pieces are replaceably penetrated through the spoiler base and the spoiler stack;
  • the end surface of the fixing member does not exceed the end surfaces of the spoiler base and the spoiler stack.
  • the length of the selected fixing piece can be selected according to the number of spoiler stacks assembled on the spoiler base to prevent the length of the fixing piece from being too long and exceeding the end faces of the spoiler base and spoiler stacks. , to reduce the interference of the fixing parts on the slurry flow and improve the diversion effect of the spoiler assembly.
  • the coating inlet is directly opposite the coating outlet
  • One group of the spoiler components is opposite to the coating inlet and the coating outlet in the layout direction of the coating inlet and the coating outlet.
  • the coating inlet, the accommodation chamber and the coating outlet have first central axes that coincide with each other;
  • the second central axis of one set of the spoiler components coincides with the first central axis.
  • the flow channel is divided into at least two branch channels at the spoiler assembly, and at least two of the branch channels merge upstream of the coating outlet.
  • the present application provides a coating machine, including the coating die described in the above embodiment.
  • Figure 1 is a partial cross-sectional view of a coating die provided by an embodiment of the present application.
  • Figure 2 is a cross-sectional view of the coating die shown in Figure 1 from another perspective;
  • Figure 3 is a cross-sectional view of the coating body of the coating die shown in Figure 1;
  • Figure 4 is a partial cross-sectional view of a coating die provided by another embodiment of the present application.
  • Figure 5 is a cross-sectional view of the coating die shown in Figure 4 from another perspective;
  • Figure 6 is an exploded view of the spoiler assembly of the coating die shown in Figure 1;
  • Figure 7 is an exploded view of the spoiler assembly of the coating die shown in Figure 4.
  • Figure 8 is a partial structural view of a coating die provided by yet another embodiment of the present application.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the first characteristic is "Above”, “above” and “above” the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. . As the application fields of power batteries continue to expand, their market demand is also constantly expanding.
  • extrusion coating In the preparation process of power batteries, such as lithium batteries, extrusion coating is often used to prepare electrode sheets (including positive electrode sheets and negative electrode sheets).
  • extrusion coating refers to the process of evenly coating the uniformly stirred slurry on the current collector by slit extrusion and drying the organic solvent in the slurry.
  • a coating machine is required during extrusion coating.
  • the coating machine has a coating die.
  • the coating die is provided with a coating inlet, a coating outlet, and a receiving cavity connected between the two.
  • the slurry enters the accommodating cavity from the coating inlet, reaches the coating outlet through the accommodating cavity, and is extruded from the coating outlet.
  • traditional coating equipment cannot guarantee the consistency of extrusion speed when using different slurries, thus affecting the coating quality.
  • the applicant found that the shape of the flow channel can be changed to adapt different shapes of flow channels to slurries of different viscosities. In this way, when using different slurries, the requirements for consistency of extrusion speed in production can be met.
  • the coating die includes a coating body. and spoiler components.
  • the coating body includes a first die head and a second die head that are separately arranged.
  • the first die head and the second die head are spliced to form an accommodation cavity.
  • the opposite ends of the coating body are respectively provided with coating inlets connected to the accommodation cavity. with coated outlet.
  • the spoiler component defines a flow channel with the cavity wall of the accommodation cavity, and the spoiler component is adjustably disposed in the accommodation cavity.
  • the flow channel defined by the spoiler component and the cavity wall of the accommodation cavity changes with the adjustment of the spoiler component in the accommodation cavity.
  • this application provides a coating die 100, which includes a coating body 10 and a spoiler assembly 20.
  • the coating body 10 includes a first die head 11 and a second die head 12 that are separately arranged.
  • the first die head 11 and the second die head 12 are spliced and define an accommodation cavity 15 (see Figure 3).
  • the coating body 10 has A coating inlet 13 and a coating outlet 14 are respectively provided at the opposite ends, and both the coating inlet 13 and the coating outlet 14 are connected to the accommodation cavity 15 .
  • the spoiler component 20 and the cavity wall of the accommodation cavity 15 define a flow channel 30 , and the spoiler component 20 is adjustably disposed in the accommodation cavity 15 .
  • the coating body 10 is the main part of the coating die 100 used for coating.
  • the separate arrangement of the first die head 11 and the second die head 12 means that the first die head 11 and the second die head 12 are divisible and independent structures, which is different from an indivisible integrated arrangement.
  • the splicing of the first die head 11 and the second die head 12 means that the first die head 11 and the second die head 12 can be connected (or covered) together, and their mutually facing surfaces are at least partially in contact.
  • the above-mentioned accommodation cavity 15 is formed between the first die head 11 and the second die head 12 .
  • the first die head 11 and the second die head 12 are connected and fixed by screws to facilitate their disassembly.
  • the second die head 12 can be a hollow structure with one end open, and the first die head 11 can be a plate-like structure.
  • the first die head 11 covers the open side of the second die head 12 so that the first die head 11 and the second die head 11 can be connected to each other.
  • the two die heads 12 jointly define a receiving cavity 15; the first die head 11 and the second die head 12 can also be hollow structures with one end open, and the open sides of the first die head 11 and the second die head 12 are closed.
  • the opening side of the second die head 12 can be a hollow structure with one end open, and the first die head 11 and the second die head 12 are closed.
  • the coating body 10 formed by the first die 11 and the second die 12 can be in various shapes, such as a rectangular parallelepiped or other irregular shapes.
  • the accommodating cavity 15 is a cavity capable of accommodating other components and slurry.
  • the coating inlet 13 serves as an inlet for the slurry to enter the accommodating cavity 15
  • the coating outlet 14 serves as an outlet for the slurry to be extruded from the accommodating cavity 15 . That is, during coating, the slurry is extruded into the accommodating cavity 15 through the coating inlet 13 , and then extruded through the accommodating cavity 15 to the coating outlet 14 .
  • the size of the coating outlet 14 in the coating width direction is generally several times or even dozens of times that of the coating inlet 13 . In a specific embodiment, the size of the coating outlet 14 in the coating width direction is 5-6 times that of the coating inlet 13 .
  • the coating width direction intersects with the arrangement direction of the coating inlet 13 and the coating outlet 14 .
  • the coating inlet 13 and the coating outlet 14 are both formed between the first die head 11 and the second die head 12 .
  • the coating inlet 13 and the coating outlet 14 can also be formed on the first die head 11 or the second die head 12, which is not limited here.
  • the flow channel 30 is a channel for coating slurry formed by the flow spoiler assembly 20 provided in the accommodation cavity 15 and the cavity wall of the accommodation cavity 15 .
  • the spoiler assembly 20 and the cavity wall of the accommodation cavity 15 define a flow channel 30, and the spoiler assembly 20 is adjustably disposed in the accommodation cavity 15” means: there can be a space between the spoiler assembly 20 and the cavity wall of the accommodation cavity 15. A flow channel 30 is formed for the slurry to pass through, And the spoiler assembly 20 is adjustably disposed in the accommodation cavity 15 , so that the spoiler assembly 20 and the cavity wall of the accommodation cavity 15 define different flow channels.
  • the slurry is a slurry with a high solid content, which generally refers to a slurry with a solid content greater than 70%.
  • the solid content is the mass percentage of the remaining part of the emulsion or slurry after drying under specified conditions.
  • the above-mentioned laying direction is perpendicular to the coating width direction.
  • the layout direction is the X direction in Figure 1
  • the coating width direction is the Y direction in Figure 1.
  • the flow channel 30 defined between the spoiler assembly 20 and the cavity wall of the accommodation cavity 15 changes as the spoiler assembly 20 is adjusted in the accommodation cavity 15 .
  • the spoiler assembly 20 is adjusted to change the flow channel 30 so that the changed flow channel 30 matches the viscosity of the slurry, thereby adjusting the flow of the slurry in the flow channel 30
  • the flow resistance encountered in the extruder is adjusted to adjust the extrusion speed distribution, thereby ensuring the consistency of the extrusion speed of slurries with different viscosities in the coating width direction through the coating outlet 14, thereby achieving the purpose of improving product quality.
  • the extrusion speed of the coating outlet 14 in the coating width direction is the same, which means that when any kind of slurry is coated, the slurry will move from the coating in the coating width direction.
  • the extrusion speed of the cloth outlet 14 is the same everywhere, that is, the mass of the slurry extruded from the coating outlet 14 in the coating width direction is the same on the unit length and within the same time.
  • the volume, shape and/or position of the spoiler assembly 20 is adjustable; and/or the spoiler assembly 20 is replaceably disposed in the accommodation cavity 15 .
  • the volume of the spoiler assembly 20 is adjustable” means that the flow channel 30 can be adjusted by adjusting the volume of the spoiler assembly 20 disposed in the accommodation cavity 15 .
  • the shape of the spoiler component 20 is adjustable” means that the flow channel 30 can be adjusted by adjusting the shape of the spoiler component 20 disposed in the accommodation cavity 15 .
  • the position of the spoiler assembly 20 is adjustable” means that the flow channel 30 can be adjusted by adjusting the position of the spoiler assembly 20 disposed in the accommodation cavity 15 .
  • the spoiler assembly 20 is replaceably disposed in the accommodation cavity 15" means that different spoiler assemblies 20 are replaced in the accommodation cavity 15, such as replacing different numbers of spoiler assemblies 20 in the accommodation cavity 15.
  • the spoiler assembly 20 and the cavity wall of the accommodation cavity 15 define different flows.
  • Channel 30 to meet the requirements for coating slurries with different viscosities.
  • the spoiler assembly 20 includes at least one spoiler, the number of spoilers in the spoiler assembly 20 is adjustable and/or the shape and/or position of the spoiler is changeable. Adjustably arranged in the accommodation cavity 15 .
  • the spoiler is an integral part of the spoiler assembly 20, and the spoiler assembly 20 includes at least one spoiler.
  • the cavity wall of the accommodation cavity 15 defines different flow channels 30, thereby ensuring uniform extrusion speed when coating slurries of different viscosities.
  • each set of spoiler assemblies 20 includes at least two spoiler components, and the spoiler components include a spoiler base 21 and at least one spoiler stack 22 , the spoiler base 21 is fixed in the accommodation cavity 15, and the spoiler stack 22 is detachably connected to the spoiler base 21.
  • the spoiler base 21 is also a spoiler, and its size is generally larger than that of other spoilers, so as to serve as a fixed basis for other spoilers to be fixed in the accommodation cavity 15 . That is, when adjusting the shape of the flow channel 30, the spoiler base 21 of at least one set of spoiler assemblies 20 is always provided in the accommodation cavity 15, but by changing other spoilers (spoiler stacks) of the spoiler set. The shape of the flow channel 30 is adjusted by the number of blocks 22).
  • the spoiler assembly 20 can be fixed in the accommodation cavity 15 to avoid the pressure exerted by the slurry during the process of squeezing the slurry. Move in the accommodation chamber 15 to further ensure the consistency of the extrusion speed.
  • the spoiler stack 22 is detachably connected to the spoiler base 21, and at least part of the spoiler stack 22 is located on the spoiler base 22 along the direction of slurry movement. upstream and/or downstream.
  • “At least part of the spoiler stack 22 is located upstream and/or downstream of the spoiler base 22” means that when other spoiler components other than the spoiler base 21 need to be fixedly installed in the accommodation cavity 15, These spoilers may be disposed on one or any side of the spoiler base 21 in the above-mentioned layout direction. If the side of the spoiler base 21 close to the coating inlet 13 is defined as the first side, and the side close to the coating outlet 14 is defined as the second side, then the remaining spoilers can be stacked on the first side at the same time, or at the same time. The layers may be stacked on the second side, or part of the layers may be stacked on the first side, and the remaining part may be stacked on the second side.
  • the flow spoiler has a greater impact on the consistency of the extrusion speed of the slurry from the coating outlet 14 in the layout direction (the length direction of the coating die 100 ).
  • the spoiler stack 22 is located upstream and/or downstream of the flow base 21, so as to facilitate the adjustment of the length of the spoiler assembly 20 in the layout direction, thereby ensuring a consistent extrusion speed. sex.
  • the spoiler base 21 is a rectangular parallelepiped block structure. In this way, the arrangement of the spoiler base 21 is facilitated.
  • the spoiler base 21 is an I-shaped structure, and the I-shaped structure has two grooves 211 for accommodating the spoiler stack 22.
  • the two grooves 211 are respectively facing the coating inlet 13 direction and the coating outlet 14 direction.
  • the two grooves 211 are respectively facing the direction of the coating inlet 13 and the coating outlet 14" means: in the above-mentioned layout direction, the two grooves 311 are respectively located on both sides of the spoiler base 21.
  • the size of the I-shaped web (the vertical plate connecting the upper and lower horizontal plates) in the layout direction is smaller, and the spoiler stack 22 can be accommodated in the I-shaped structure.
  • the grooves 211 on both sides of the font more spoiler stacks 22 can be arranged in the layout direction, which expands the adjustment range in the layout direction.
  • the shape of the spoiler base 21 can be selected accordingly as needed, and is not limited here.
  • the spoiler stack 22 is a sheet structure.
  • the thickness of each spoiler stack 22 in the layout direction is reduced, thereby improving the adjustment accuracy in the layout direction.
  • the specific thickness of the spoiler stack 22 in the layout direction it is determined according to the needs of the working conditions.
  • the spoiler base 21 is pressed between the first die head 11 and the second die head 12 and fixed. Specifically, the spoiler base 21 is pressed between the first die head 11 and the second die head 12 in the first direction and is fixed.
  • the laying direction, the first direction and the coating width direction are perpendicular to each other.
  • the first direction is the Z direction in Figure 1.
  • the spoiler base 21 is fixed between the first die head 11 and the second die head 12 in the first direction
  • the spoiler base 21 is fixed by the contact between the first die head 11 and the second die head 12 , that is, the spoiler base 21 is clamped and fixed on between the first die head 11 and the second die head 12 .
  • the spoiler base 21 can be fixed in the accommodation cavity 15 under the pressure of the first die head 11 and the second die head 12 , thus avoiding the need for additional components to fix the spoiler base 21 in the accommodation cavity. 15, on the basis of simplifying the structure of the coating die 100, it is avoided to install additional components in the accommodation cavity 15 to interfere with the flow of the slurry.
  • the spoiler base 21 can also be fixed through other components, such as auxiliary fixation through positioning pins, which is not limited here.
  • the first die head 11 has a first abutment surface 111
  • the second die head 12 has a second abutment surface 121
  • the first abutment surface 111 is connected to the first abutment surface 121 .
  • the two contact surfaces 121 are spaced apart and opposite to each other in the first direction.
  • the first contact surface 111 and the second contact surface 121 respectively abut against the two end surfaces of the spoiler base 21 in the first direction.
  • first contact surface 111 and the second contact surface 121 are both flat surfaces, and the first contact surface 111 and the second contact surface 121 respectively abut the two end planes of the spoiler base 21 in the first direction.
  • the planes are in contact with each other means that both end surfaces of the spoiler base 21 in the layout direction are flat surfaces, one end surface is in contact with the first contact surface 111 , and the other end surface is in contact with the second contact surface 121 fit.
  • first contact surface 111 and the second contact surface 121 respectively abut the two end surfaces of the spoiler base 21 in the first direction, it is ensured that the two end surfaces of the spoiler base 21 in the first direction are in contact with the die head. There is no gap between them, and the slurry can only flow from both sides of the spoiler base 21 in the coating width direction to the coating outlet 14, which strengthens the flow blocking and diverting functions of the spoiler.
  • the accommodation chamber 15 includes a first part 151 and a second part 152 that communicate with each other.
  • the second part 152 is connected with the coating inlet 13
  • the first part 151 is connected with the coating outlet 14
  • the first part 151 is connected with the coating outlet 14 .
  • the height of the part 151 gradually decreases from one end connected to the second part 152 to the other end, and the spoiler base 21 is fixed in the second part 152 .
  • the height direction of the coating die 100 intersects with both the coating direction and the layout direction.
  • the spoiler base 21 is fixed in the second part 152. Due to the limitation of the first part 151, the spoiler base 21 is in the accommodating cavity 15. The position is not easy to change, ensuring the stability of adjustment.
  • the accommodation chamber 15 includes a second part 152 and a third part 153 that are connected to each other.
  • the third part 153 is connected to the coating inlet 13
  • the second part 152 is connected to the coating outlet 14
  • the height of the third part 153 gradually decreases from one end connected with the second part 152 to the other end, and the base is fixedly provided in the second part 152.
  • the spoiler base 21 is fixed in the second part 152. Due to the limitation of the third part 153, the spoiler base 21 is in the accommodating cavity. The position in 15 is not easy to change, ensuring the stability of adjustment.
  • the accommodation chamber 15 includes a first part 151, a second part 152 and a third part 153 that are connected in sequence.
  • the third part 153 is connected to the coating inlet 13, and the first part 151 is connected to the coating inlet 13.
  • the outlet 14 is connected, the size of the third part 153 gradually decreases from one end connected with the second part 152 to the other end, the size of the first part 151 gradually decreases from one end connected with the second part 152 to the other end, and the spoiler base
  • the seat 21 is fixed in the second part 152 .
  • the spoiler base 21 is fixed in the second part 152. Due to the limitations of the first part 151 and the third part 153, The position of the spoiler base 21 in the accommodation cavity 15 is difficult to change, ensuring the stability of adjustment.
  • the shapes of the spoilers provided in the first part 151 , the second part 152 and the second part 152 are adjusted according to the shapes of the three parts, so that they can be accommodated in the first part 151 , the second part 152 and the second part 152 . part 152 or within the second part 152.
  • the spoiler assembly 20 further includes a fixing member 23.
  • the fixing member 23 is passed through the spoiler base 21 and the spoiler stack 22 so that both fixed.
  • the fixing member 23 includes screws and nuts that match the screws.
  • the screws pass through the spoiler base 21 and the spoiler stack 22 .
  • the nuts are provided at the exit ends of the screws to install the spoiler base 21 on the spoiler base 21 and the spoiler stack 22 .
  • the spoiler stack 22 on the base 21 is fixed.
  • the spoiler base 21 is provided with threaded through holes in the layout direction. When the spoiler base 21 is not stacked with spoiler stacks 22 on one side in the layout direction, use countersunk head screws to block the threads. through hole.
  • the spoiler base 21 is processed with threaded through holes, which is equivalent to forming blind holes for easy cleaning.
  • the spoiler base 21 and other spoiler stacks 22 can also be connected and fixed in other ways, such as snapping.
  • the spoiler base 21 and other spoiler stacks 22 installed thereon are fixed to each other, thereby ensuring the reliability of the connection.
  • the spoiler assembly 20 includes at least two fixing members 23 , and the fixing members 23 are selectively penetrated through the spoiler base 21 and the spoiler stack 22 .
  • the end face of the fixing piece 23 does not exceed the spoiler base 21 and the spoiler base 21.
  • the end face of the fixing piece 23 does not exceed the end faces of the spoiler base 21 and the spoiler stack 22” means: the two end faces of the fixing piece 23 in the layout direction are flush with the spoiler base 21 or the spoiler stack 22 , or the two end surfaces of the fixing member 23 in the layout direction are recessed on the spoiler base 21 or the spoiler stack 22 .
  • the length of the fixed member 23 can be selected according to the number of spoiler stacks 22 assembled on the spoiler base 21 to prevent the length of the fixed member 23 from being too long and exceeding the spoiler base 21 and the spoiler base 21.
  • the end surface of the flow stack block 22 is used to reduce the interference of the fixing member 23 on the slurry flow and improve the flow diversion effect of the flow spoiler assembly 20.
  • each group of spoiler assemblies 20 may only include one fixing member 23 when the number of spoiler stacks 22 provided in each group of spoiler assemblies 20 in the accommodation cavity 15 is different. , there will be a situation where the fixing member 23 exceeds the end surface of the spoiler base 21 and the spoiler stack 22 installed thereon.
  • the coating inlet 13 and the coating outlet 14 are directly opposite in the layout direction.
  • One group of spoiler assemblies 20 is opposite to both the coating inlet 13 and the coating outlet 14 in the layout direction.
  • the coating inlet 13 and the coating outlet 14 are directly opposite in the layout direction means that in the coating width direction, the projection of the coating inlet 13 on the plane where the coating outlet 14 is located is on the coating outlet 14 At least partially coincident.
  • One group of spoiler components 20 is opposite to the coating inlet 13 and coating outlet 14 in the layout direction means: in the coating width direction, there is a group of spoiler components 20 in the plane where the coating outlet 14 is located. The projection of the coating inlet 13 on the plane where the coating outlet 14 is located and the coating outlet 14 at least partially overlap.
  • a set of spoiler assemblies 20 are arranged opposite to the coating inlet 13 and the coating outlet 14 in the layout direction, so that the slurry flowing from the coating inlet 13 to the flow channel 30 can flow through the set of spoiler assemblies 20. Distribute it relatively evenly to both sides in the coating width direction to improve speed consistency.
  • the coating inlet 13 , the accommodation chamber 15 and the coating outlet 14 have first central axes that coincide with each other.
  • the second central axis of one group of spoiler assemblies 20 coincides with the first central axis. That is, the coating inlet 13, the accommodation chamber 15 and the coating outlet 14 are all axially symmetrical figures, and all have first central axes, and the first central axes of the three coincide with each other.
  • the spoiler assembly 20 is also a centrally symmetrical figure with a second central axis, and the first central axis coincides with the second central axis.
  • the above arrangement allows the slurry flowing from the coating inlet 13 to the flow channel 30 to be more evenly distributed to both sides in the coating width direction in the flow channel 30 to improve speed consistency.
  • the flow channel 30 is divided into at least two branches at the spoiler assembly 20 flow channel, at least two branch channels merge upstream of the coating outlet 14.
  • the accommodation cavity 15 forms the flow channel 30 .
  • the flow channel 30 is jointly defined by the cavity wall of the accommodation cavity 15 and the spoiler assembly 20 .
  • the flow channel 30 is divided into at least two branch channels at the spoiler assembly 20, and at least the two branch channels merge upstream of the coating outlet 14" means: when a set of spoiler assemblies 20 are provided in the accommodation cavity 15 , the part where the flow channel 30 communicates with the coating inlet 13 is divided into two branch channels at the spoiler assembly 20 , and the two branch channels merge upstream of the coating outlet 14 .
  • the portion of the flow channel 30 communicating with the coating inlet 13 is divided into at least two branch channels at the spoiler assembly 20, and at least two branch channels are used during coating.
  • the above arrangement ensures that the spoiler component 20 and the cavity wall of the accommodation chamber 15 define different flow channels 30 and prevents the spoiler component 20 from interfering with the flow of slurry from the flow channel 30 to the coating outlet 14 to facilitate coating.
  • the present application also provides a coating machine, including the coating die 100 described in any one of the above.
  • the present application provides a coating die 100 .
  • the coating die 100 includes a coating body 10 and a set of spoiler assemblies 20 .
  • the coating body 10 includes a first die head 11 and a second die head 12.
  • the first die head 11 and the second die head 12 are spliced to form a coating body 10 with a rectangular block structure.
  • a coating inlet 13 , a receiving cavity 15 and a coating outlet 14 are formed between the first die 11 and the second die 12 .
  • the coating inlet 13 and the coating outlet 14 are directly opposite, and the spoiler assembly 20 is opposite to both the coating inlet 13 and the coating outlet 14 .
  • the spoiler assembly 20 includes a spoiler base 21 in the shape of a rectangular parallelepiped and a plurality of spoiler stacks 22.
  • the size of the spoiler base 21 in the layout direction is larger than the size of each spoiler stack 22. All spoiler stacks are The blocks 22 have equal dimensions in the laying direction.
  • the accommodating cavity 15 includes a third part 153, a second part 152 and a first part 151 that are sequentially connected in the layout direction.
  • a first contact surface 111 and a second contact surface 121 are formed in the second part 152. Both ends of the flow base 21 in the first direction are in contact with the first contact surface 111 and the second contact surface 121 respectively.
  • the spoiler stack 22 is provided on the side of the spoiler base 21 close to the coating outlet 14 in the layout direction.
  • the flow path is changed. 30, thereby matching the viscosity of the slurry, thereby adjusting the flow resistance encountered by the slurry in the flow channel 30 to adjust the extrusion speed distribution, thereby ensuring that slurries of different viscosities pass through the coating outlet 14 in the coating width direction.
  • the consistency of the extrusion speed achieves the purpose of improving product quality.
  • the present application provides a coating die 100.
  • the shape of the spoiler base 21 is I-shaped, and the spoiler base 21 is I-shaped.
  • the stacking block 22 is arranged in the groove 211 of the spoiler base 21 .
  • the flow channel 30 is changed to match the viscosity of the slurry, thereby adjusting the flow resistance of the slurry in the flow channel 30.
  • the extrusion speed distribution is adjusted to ensure the consistency of the extrusion speed of slurries with different viscosities in the coating width direction through the coating outlet 14, thereby achieving the purpose of improving product quality.

Landscapes

  • Coating Apparatus (AREA)

Abstract

一种涂布模头及包括该涂布摸头的涂布机，涂布模头（100）包括：涂布主体(10)、扰流组件(20)。涂布主体(10)包括分体设置的第一模头(11)与第二模头(12)，第一模头(11)与第二模头(12)拼接并界定形成一容纳腔(15)，涂布主体(10)的相对两端分别开设有与容纳腔(15)连通的涂布入口(13)与涂布出口(14)。扰流组件(20)与容纳腔(15)的腔壁界定形成流道(30)，扰流组件(20)可调节地设置于容纳腔(15)中。该涂布摸头可以满足涂布不同黏度的浆料，保证涂布质量。

Description

涂布模头及涂布机
交叉引用
本申请引用于2022年6月22日递交的名称为“涂布模头及涂布机”的第202210709508.3号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及动力电池技术领域，更具体的说，涉及一种涂布模头及涂布机。
背景技术
节能减排是汽车产业可持续发展的关键，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。对于电动车辆而言，电池技术又是关乎其发展的一项重要因素。
在电池的制备过程中，常采用挤压涂布的方式制备极片。在电池生成过程中，电芯容量一致性是衡量电性能的关键参数，而电芯容量一致性是由涂布重量一致性所决定的。
为了保证涂布重量的一致性，需要控制挤出速度。采用传统的涂布设备，在涂布不同浆料时无法保证每种浆料在涂布宽度方向上挤出速度的一致性，从而影响涂布质量。
发明内容
有鉴于此，本申请公开一种涂布模头及涂布机。
第一方面，本申请提供一种涂布模头，包括：
涂布主体，包括分体设置的第一模头与第二模头，所述第一模头与所述第二模头拼接并界定形成一容纳腔；所述涂布主体的相对两端分别开设有与所述容纳腔连通的涂布入口与涂布出口；及
扰流组件，与所述容纳腔的腔壁界定形成流道；所述扰流组件可调节地设置于所述容纳腔中。
上述设置，由于扰流组件可调节地设置于容纳腔中，则扰流组件与容纳腔的腔壁界定形成的流道随着扰流组件在容纳腔中的调节而不同，以满足涂布不同黏度的浆料的要求。即为，当需要涂布不同黏度的浆料时，调节扰流组件，以改变流道，以使改变后的流道与浆料的黏度相匹配，从而调节浆料在流道中所受到的流阻以调节挤出速度分布，进而保证不同黏 度的浆料经涂布出口在涂布宽度方向上的挤出速度的一致性，达到了提高产品质量的目的。
在一些实施例中，所述扰流组件的体积、形状和/或位置可调节；和/或
所述扰流组件可更换地设置于所述容纳腔中。
通过调节扰流组件的体积、形状和/或位置；和/或扰流组件可更换地设置于容纳腔中，从而使得扰流组件与容纳腔的腔壁界定形成不同的流道，以满足涂布不同黏度的浆料的要求。
在一些实施例中，所述扰流组件包括至少一个扰流件，所述扰流组件中所述扰流件的数量可调节和/或所述扰流件的形状可改变地和/或位置可调节地设置于所述容纳腔中。
通过更换扰流组件中扰流件的数量和/或形状，和/或调节扰流件的位置，以便于与容纳腔的腔壁界定形成不同的流道，从而在涂布不同黏度的浆料时，均能保证挤出速度均匀。
在一些实施例中，所述扰流件为两个以上；所述扰流件包括扰流基座和至少一个扰流叠块，所述扰流基座固定于所述容纳腔中，所述扰流叠块与所述扰流基座可拆卸连接。通过设置每组扰流组件中一个扰流件为扰流基座，以便于扰流组件固定于容纳腔中，避免在挤压浆料的过程中，在浆料施加的压力下在容纳腔中移动，以进一步保证挤出速度一致性。
在一些实施例中，所述扰流叠块可拆卸地连接于所述扰流基座上，沿浆料运动方向，所述扰流叠块的至少部分位于所述扰流基座的上游和/或下游。通过设置沿浆料的运动方向，扰流叠块的至少部分位于绕流基座的上游和/或下游，以便于在布设方向上调节扰流组件的长度，从而保证挤出速度一致性。
在一些实施例中，所述扰流基座为工字型结构，所述工字型结构具有两个用于容纳所述扰流叠块的凹槽，两个所述凹槽分别朝向所述涂布入口方向和所述涂布出口方向。当设置扰流基座为工字型结构时，工字型的腹板(连接上下两块水平板的竖直板)在布设方向上的尺寸较小，扰流叠块能够容纳于工字型两侧的凹槽中，这样，能够在布设方向上设置更多的扰流叠块，扩大了在布设方向上的调节范围。
在一些实施例中，所述扰流基座抵压于所述第一模头与所述第二模头之间并固定。上述设置，扰流基座在第一模头与第二模头的抵压作用下即可固定于容纳腔中，避免了另设部件以将扰流基座固定于容纳腔中，在简化涂布模头结构的基础上，避免了在容纳腔中另设部件以干涉浆料的流动。
在一些实施例中，所述第一模头具有第一抵接面，所述第二模头具有与所述第一抵接面间隔设置的第二抵接面；
所述第一抵接面及所述第二抵接面分别与所述扰流基座的两端平面相抵。由于第一抵接面及第二抵接面分别与扰流基座在布设方向上的两端面相抵，则保证扰流基座在第一方向上的两端面与模头之间无缝隙，浆料只能从扰流基座在涂布宽度方向上的两侧流向涂布出口，加强了扰流件的阻流和分流的功能。
在一些实施例中，所述容纳腔包括相互连通的第一部分及第二部分，所述第二部分与 所述涂布入口连通，所述第一部分与所述涂布出口连通，所述第一部分自与所述第二部分连通的一端到另一端的高度逐渐减小，所述扰流基座固定于所述第二部分内；和/或
所述容纳腔包括相互连通的第二部分及第三部分，所述第三部分与所述涂布入口连通，所述第二部分与所述涂布出口连通，所述第三部分自与所述第二部分连通的一端到另一端的高度逐渐减小，所述基座固定设于所述第二部分内。上述设置，扰流基座固定于第二部分内，由于第一部分和/或第三部分的限制，则扰流基座在容纳腔中的位置不易发生变动，保证了调节的稳定性。
在一些实施例中，所述扰流组件还包括固定件，所述固定件穿设于所述扰流基座及所述扰流叠块以使两者固定。通过设置固定件，以便于扰流基座与安装于上的其他扰流叠块相互固定，保证了连接的可靠性。
在一些实施例中，所述扰流组件包括至少两个所述固定件，所述固定件可更换地穿设于所述扰流基座与所述扰流叠块；
所述固定件的端面不超出所述扰流基座与所述扰流叠块的端面。上述设置，选择的固定件的长度可以根据装配于扰流基座上的扰流叠块的个数做选择，以防止固定件的长度太长而超出扰流基座及扰流叠块的端面，以减少固定件对浆料流动产生干涉，提高扰流组件的分流效果。
在一些实施例中，所述涂布入口与所述涂布出口正对；
其中一组所述扰流组件在所述涂布入口与所述涂布出口的布设方向与所述涂布入口及所述涂布出口均相对。设置一组扰流组件在布设方向上与涂布入口及涂布出口均相对，则从涂布入口流向流道的浆料，在流经该组扰流组件时，能够较为平均地分配至其在涂布宽度方向上的两侧，从而以便于提高速度一致性。
在一些实施例中，所述涂布入口、所述容纳腔及所述涂布出口具有相互重合的第一中心轴线；
其中一组所述扰流组件的第二中心轴线与所述第一中心轴线重合。上述设置，使得从涂布入口流向流道的浆料，在流道内能够更为平均地分配至在涂布宽度方向上的两侧，以提高速度一致性。
在一些实施例中，所述流道在所述扰流组件处分流为至少两个分流道，至少两个所述分流道在所述涂布出口的上游汇流。
第二方面，本申请提供一种涂布机，包括上述实施例中所述的涂布模头。
附图说明
图1为本申请一实施例提供的涂布模头的一视角的局部剖视图；
图2为图1中所示的涂布模头的另一视角的剖视图；
图3为图1中所示的涂布模头的涂布主体的剖视图；
图4为本申请另一实施例提供的涂布模头的一视角的局部剖视图；
图5为图4中所示的涂布模头的另一视角的剖视图；
图6为图1中所示的涂布模头的扰流组件的爆炸图；
图7为图4中所示的涂布模头的扰流组件的爆炸图；
图8为本申请又一实施例提供的涂布模头的局部结构图。
附图标记说明：
100、涂布模头；10、涂布主体；11、第一模头；111、第一抵接面；12、第二模头；
121、第二抵接面；13、涂布入口；14、涂布出口；15、容纳腔；151、第一部分；152、第二部分；153、第三部分；20、扰流组件；21、扰流基座；211、凹槽；22、扰流叠块；23、固定件；30、流道。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在 第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
动力电池，如锂电池的制备过程中，常采用挤压涂布的方式制备极片(包括正极片和负极片)。其中，挤压涂布指采用狭缝挤压的方式将搅拌均匀的浆料均匀地涂覆在集流体上，并将浆料中的有机溶剂干燥的过程。挤压涂布时需要用到涂布机，涂布机具有涂布模头，涂布模头上设有涂布入口、涂布出口以及连通于两者之间的容纳腔。在涂布时，浆料从涂布入口进入容纳腔中，并经容纳腔到达涂布出口，从涂布出口挤出。但是，传统的涂布设备，在使用不同浆料时无法均保证挤出速度一致性，从而影响涂布质量。
本发明人注意到，出现上述问题的根本原因在于：不同浆料的流动性不同，即为不同浆料具有不同的黏度，且高固含量涂布工艺中，浆料的黏度较大，流动性更差，浆料流动特性不稳定，波动范围很大，仅用单一的流道形状，在采用不同浆料时，无法满足每种浆料在涂布宽度方向上挤出速度一致性的要求，从而影响涂布质量。当挤出速度不同时，容易导致涂布裂开、鼓包及无法成型，从而影响产品质量。
为了缓解在使用不同浆料时无法保证挤出速度一致性而影响涂布质量的问题，申请人研究发现，可以通过改变流道形状，以使不同形状的流道适配不同黏度的浆料，这样，在采用不同浆料时，均能够满足生产上挤出速度一致性的要求。
基于上述考虑，为了解决在使用不同浆料时无法保证挤出速度一致性而影响涂布质量的问题，发明人经过深入研究，设计了一种涂布模头，涂布模头包括涂布主体及扰流组件。涂布主体包括分体设置的第一模头与第二模头，第一模头与第二模头拼接形成容纳腔，涂布主体相对的两端分别开设有与容纳腔连通的涂布入口与涂布出口。
扰流组件与容纳腔的腔壁界定形成流道，扰流组件可调节地设置于容纳腔中。
在这样的涂布模头中，由于扰流组件可调节地设置于容纳腔中，则扰流组件与容纳腔的腔壁界定形成的流道随着扰流组件在容纳腔中的调节而不同，以满足涂布不同黏度的浆料 的要求，从而当采用该涂布模头涂布不同黏度的浆料时，能保证不同黏度的浆料经涂布出口在涂布宽度方向上的挤出速度的一致性，达到了提高产品质量的目的。
参阅图1及图2，本申请提供了一种涂布模头100，包括涂布主体10及扰流组件20。
涂布主体10包括分体设置的第一模头11与第二模头12，第一模头11与第二模头12拼接并界定形成容纳腔15(参阅图3)，涂布主体10的相对两端分别开设有涂布入口13与涂布出口14，涂布入口13与涂布出口14均与容纳腔15连通。
扰流组件20与容纳腔15的腔壁界定形成流道30，扰流组件20可调节地设置于容纳腔15中。
涂布主体10是涂布模头100中用于涂布的主要部分。第一模头11与第二模头12分体设置的意思是：第一模头11与第二模头12是可分割且独立的结构，其区别于不可分割的一体设置。
第一模头11与第二模头12拼接的意思是：第一模头11与第二模头12能够相互连接(或盖合)在一起，且其相互面对的表面至少部分贴合。当第一模头11与第二模头12连接在一起时，第一模头11与第二模头12之间形成上述容纳腔15。具体地，第一模头11与第二模头12通过螺钉连接固定，以方便两者拆卸。
第二模头12可以为一端开口的空心结构，第一模头11可以为板状结构，第一模头11盖合于第二模头12的开口侧，以使第一模头11与第二模头12共同限定出容纳腔15；第一模头11与第二模头12也可以是均为一端开口的空心结构，第一模头11与第二模头12的开口侧盖合于第二模头12的开口侧。当然，第一模头11与第二模头12形成的涂布主体10可以是多种形状，比如长方体或者其他不规则图形。
容纳腔15为能够容纳其他部件及浆料的腔体。涂布入口13作为浆料进入容纳腔15中的入口，涂布出口14作为浆料从容纳腔15挤出的出口。即为，在涂布时，浆料经涂布入口13被挤压至容纳腔15中，并经容纳腔15挤压至涂布出口14挤出。涂布出口14在涂布宽度方向上的尺寸一般为涂布入口13的几倍甚至几十倍。在一个具体实施例中，涂布出口14在涂布宽度方向上的尺寸为涂布入口13的5-6倍。涂布宽度方向与涂布入口13与涂布出口14的布设方向相交。
一实施例中，涂布入口13与涂布出口14均形成于第一模头11与第二模头12之间。当然，另一些实施例中，涂布入口13与涂布出口14也可以形成于第一模头11或第二模头12上，在此不作限定。
流道30为设于容纳腔15的扰流组件20与容纳腔15的腔壁界定形成的用于涂布浆料的通道。
“扰流组件20与容纳腔15的腔壁界定形成流道30，扰流组件20可调节地设置与容纳腔15中”的意思是：扰流组件20与容纳腔15的腔壁之间能够形成供浆料通过的流道30， 且扰流组件20可调节地设置于容纳腔15中，从而以使得扰流组件20与容纳腔15的腔壁界定形成不同的流道。
在此需要说明的是，浆料为高固含量的浆料，一般指固含量大于70％的浆料。固含量是乳液或浆料在规定条件下烘干后剩余部分占总量的质量百分数。
上述布设方向与涂布宽度方向垂直。参阅图1,布设方向为图1中的X方向，涂布宽度方向为图1的Y方向。
上述设置，由于扰流组件20可调节地设置于容纳腔15中，则扰流组件20与容纳腔15的腔壁界定形成的流道30随着扰流组件20在容纳腔15中的调节而不同，以满足涂布不同黏度的浆料的要求。即为，当需要涂布不同黏度的浆料时，调节扰流组件20，以改变流道30，以使改变后的流道30与浆料的黏度相匹配，从而调节浆料在流道30中所受到的流阻以调节挤出速度分布，进而保证不同黏度的浆料经涂布出口14在涂布宽度方向上的挤出速度的一致性，达到了提高产品质量的目的。
在此需要说明的是，涂布出口14在涂布宽度方向上的挤出速度相同所要表达的意思是：在涂布任意一种浆料时，该种浆料在涂布宽度方向上从涂布出口14各处挤出的速度相等，即为，在单位长度上且在相同时间内，在涂布宽度方向上从涂布出口14各处挤出的浆料质量相同。
根据本申请的一些实施例，可选地，扰流组件20的体积、形状和/或位置可调节；和/或扰流组件20可更换地设置于容纳腔15中。
“扰流组件20的体积可调节”的意思是：可以通过调节设置于容纳腔15中的扰流组件20的体积来调节流道30。
“扰流组件20的形状可调节”的意思是：可以通过调节设置于容纳腔15中的扰流组件20的形状来调节流道30。
“扰流组件20的位置可调节”的意思是：可以通过调节设置于容纳腔15中的扰流组件20的位置来调节流道30。
“扰流组件20可更换地设置于容纳腔15中”的意思是：更换不同的扰流组件20于容纳腔15中，如更换不同数量的扰流组件20于容纳腔15中。
通过调节扰流组件20的体积、形状和/或位置；和/或扰流组件20可更换地设置于容纳腔15中，从而使得扰流组件20与容纳腔15的腔壁界定形成不同的流道30，以满足涂布不同黏度的浆料的要求。
根据本申请的一些实施例，可选地，扰流组件20包括至少一个扰流件，扰流组件20中扰流件的数量可调节和/或扰流件的形状可改变地和/或位置可调节地设置于容纳腔15中。
扰流件为扰流组件20的组成部分，扰流组件20包括至少一个扰流件。
通过更换扰流组件20中扰流件的数量和/或形状，和/或调节扰流件的位置，以便于与 容纳腔15的腔壁界定形成不同的流道30，从而在涂布不同黏度的浆料时，均能保证挤出速度均匀。
根据本申请的一些实施例，可选地，参阅图4及图5，每组扰流组件20包括至少两个绕流件，扰流件包括扰流基座21和至少一个扰流叠块22，扰流基座21固定于容纳腔15中，扰流叠块22与扰流基座21可拆卸连接。
扰流基座21也为一个扰流件，其尺寸一般比其他扰流件的尺寸大，以作为其他扰流件固定于容纳腔15内的固定基础。即为，在调节流道30的形状时，至少一组扰流组件20的扰流基座21一直设于容纳腔15中，而是通过改变扰流件组的其他扰流件(扰流叠块22)的个数来调节流道30的形状。
通过设置每组扰流组件20中一个扰流件为扰流基座21，以便于扰流组件20固定于容纳腔15中，避免在挤压浆料的过程中，在浆料施加的压力下在容纳腔15中移动，以进一步保证挤出速度一致性。
根据本申请的一些实施例，可选地，扰流叠块22可拆卸地连接于扰流基座21上，沿浆料运动方向，扰流叠块22的至少部分位于扰流基座22的上游和/或下游。
“扰流叠块22的至少部分位于扰流基座22的上游和/或下游”的意思是：当需要将不作为扰流基座21的其他扰流件固定设于容纳腔15内时，这些扰流件可以设置在扰流基座21在上述布设方向的其中一侧或者任何一侧。若定义扰流基座21靠近涂布入口13的一侧为第一侧，靠近涂布出口14的一侧为第二侧，那么剩余扰流件可以同时层叠设于第一侧，也可以同时层叠设于第二侧，还可以部分层叠设于第一侧，剩余部分层叠设于第二侧。
根据流体动力学分析结果可知，扰流件在布设方向(涂布模头100的长度方向)上对浆料从涂布出口14的挤出速度一致性的影响较大。通过设置沿浆料的运动方向，扰流叠块22的至少部分位于绕流基座21的上游和/或下游，以便于在布设方向上调节扰流组件20的长度，从而保证挤出速度一致性。
根据本申请的一些实施例，可选地，参阅图6，扰流基座21为长方体块状结构。如此，以方便扰流基座21的设置。
根据本申请的一些实施例，可选地，参阅图7，扰流基座21为工字型结构，工字型具有两个用于容纳扰流叠块22的凹槽211，两个凹槽211分别朝向涂布入口13方向和涂布出口14方向。
“两个凹槽211分别朝向涂布入口13方向和涂布出口14方向”的意思是：在上述布设方向上，两个凹槽311分别位于扰流基座21的两侧。
当设置扰流基座21为工字型结构时，工字型的腹板(连接上下两块水平板的竖直板)在布设方向上的尺寸较小，扰流叠块22能够容纳于工字型两侧的凹槽211中，这样，能够在布设方向上设置更多的扰流叠块22，扩大了在布设方向上的调节范围。
可以理解的是，在另一些实施例中，扰流基座21的形状可以根据需要作相应选择，在此亦不作限定。
根据本申请的一些实施例，可选地，扰流叠块22为片状结构。通过将扰流叠块22设置为片状，减小了每片扰流叠块22在布设方向上的厚度，从而提高了在布设方向上的调节精度。至于扰流叠块22的在布设方向上的厚度具体设置为多少，依据工况需要而定。
根据本申请的一些实施例，可选地，参阅图2及图5，扰流基座21抵压于第一模头11与第二模头12之间并固定。具体地，扰流基座21在第一方向上抵压于第一模头11与第二模头12之间并固定。布设方向、第一方向及涂布宽度方向两两垂直。第一方向为图1中的Z方向。
抵压即为两个部件相互抵靠接触。上述“扰流基座21在第一方向上抵设于第一模头11与第二模头12之间固定”的意思是：扰流基座21在第一方向上的两端分别与第一模头11及第二模头12抵接，且扰流基座21在第一模头11与第二模头12的抵接作用下固定，也即为扰流基座21夹持固定于第一模头11与第二模头12之间。
上述设置，扰流基座21在第一模头11与第二模头12的抵压作用下即可固定于容纳腔15中，避免了另设部件以将扰流基座21固定于容纳腔15中，在简化涂布模头100结构的基础上，避免了在容纳腔15中另设部件以干涉浆料的流动。
当然，在另一些实施例中，也可以通过其他部件将扰流基座21固定，如通过定位销钉辅助固定，在此亦不作限定。
根据本申请的一些实施例，可选地，参阅图3，第一模头11具有第一抵接面111，第二模头12具有第二抵接面121，第一抵接面111与第二抵接面121在第一方向上间隔且相对。第一抵接面111及第二抵接面121分别与扰流基座21在第一方向上的两端面相抵。
进一步，第一抵接面111与第二抵接面121均为平面，第一抵接面111及第二抵接面121分别与扰流基座21在第一方向上的两端平面相抵。
平面相抵的意思是：扰流基座21在布设方向上的两个端面均为平面，其中一个端面与第一抵接面111抵接贴合，另一个端面与第二抵接面121抵接贴合。
由于第一抵接面111及第二抵接面121分别与扰流基座21在第一方向上的两端面相抵，则保证扰流基座21在第一方向上的两端面与模头之间无缝隙，浆料只能从扰流基座21在涂布宽度方向上的两侧流向涂布出口14，加强了扰流件的阻流和分流的功能。
根据本申请的一些实施例，可选地，容纳腔15包括相互连通的第一部分151及第二部分152，第二部分152与涂布入口13连通，第一部分151与涂布出口14连通，第一部分151自与第二部分152连通的一端到另一端的高度逐渐减小，扰流基座21固定于第二部分152内。
涂布模头100的高度方向与上述涂布方向及布设方向均相交。
通过将容纳腔15设置为相互连通的第一部分151与第二部分152，扰流基座21固定于第二部分152内，由于第一部分151的限制，则扰流基座21在容纳腔15中的位置不易发生变动，保证了调节的稳定性。
根据本申请的一些实施例，可选地，容纳腔15包括相互连通的第二部分152及第三部分153，第三部分153与涂布入口13连通，第二部分152与涂布出口14连通，第三部分153自与第二部分152连通的一端到另一端的高度逐渐减小，基座固定设于第二部分152内。
通过将容纳腔15设置为相互连通的第二部分152与第三部分153，扰流基座21固定于第二部分152内，由于第三部分153的限制，则扰流基座21在容纳腔15中的位置不易发生变动，保证了调节的稳定性。
根据本申请的一些实施例，可选地，容纳腔15包括依次连通的第一部分151、第二部分152及第三部分153，第三部分153与涂布入口13连通，第一部分151与涂布出口14连通，第三部分153自与第二部分152连通的一端到另一端的尺寸逐渐减小，第一部分151自与第二部分152连通的一端到另一端的尺寸逐渐减小，扰流基座21固定于第二部分152内。
通过将容纳腔15设置为相互连通的第一部分151、第二部分152及第三部分153，扰流基座21固定于第二部分152内，由于第一部分151及第三部分153的限制，则扰流基座21在容纳腔15中的位置不易发生变动，保证了调节的稳定性。
在此需要说明的是，设于第一部分151、第二部分152及第二部分152内的扰流件的形状根据三部分的形状做适应调整，以使其能够容纳于第一部分151、第二部分152或第二部分152内。
根据本申请的一些实施例，可选地，参阅图6及图7，扰流组件20还包括固定件23，固定件23穿设于扰流基座21及扰流叠块22以使两者固定。
固定件23包括螺钉及与螺钉相配合的螺母，螺钉穿设于扰流基座21及扰流叠块22，螺母设于螺钉的穿出端，以将扰流基座21及安装于扰流基座21上的扰流叠块22固定。具体地，扰流基座21在布设方向上贯穿设有螺纹通孔，当扰流基座21在布设方向上的一侧未层叠设有扰流叠块22时，用沉头螺钉封堵螺纹通孔。且扰流基座21上加工有螺纹通孔，相当于加工形成盲孔的情况，便于清洗。
另一些实施例中，扰流基座21与其他扰流叠块22还可以采用其他方式连接固定，如卡接。
通过设置固定件23，以便于扰流基座21与安装于上的其他扰流叠块22相互固定，保证了连接的可靠性。
根据本申请的一些实施例，可选地，扰流组件20包括至少两个固定件23，固定件23可选择地穿设于扰流基座21与扰流叠块22。固定件23的端面不超出扰流基座21与扰 流叠块22的端面。
“固定件23的端面不超出扰流基座21与扰流叠块22的端面”的意思是：固定件23在布设方向上的两端面与扰流基座21或扰流叠块22平齐，或者固定件23在布设方向上的两端面凹陷设于扰流基座21或扰流叠块22。
上述设置，选择的固定件23的长度可以根据装配于扰流基座21上的扰流叠块22的个数做选择，以防止固定件23的长度太长而超出扰流基座21及扰流叠块22的端面，以减少固定件23对浆料流动产生干涉，提高扰流组件20的分流效果。
应当理解的是，在另一些实施例中，每组扰流组件20也可以只包括一个固定件23，当每组扰流组件20设于容纳腔15中的扰流叠块22的数量不同时，将会存在固定件23超出扰流基座21与安装于其上的扰流叠块22的端面的情况发生。
根据本申请的一些实施例，可选地，参阅图1、图4及图8，涂布入口13与涂布出口14在布设方向上正对。其中一组扰流组件20在布设方向上与涂布入口13及涂布出口14均相对。
“涂布入口13与涂布出口14在布设方向上正对”所想要表达的意思是：在涂布宽度方向上，涂布入口13在涂布出口14所在平面的投影于涂布出口14至少部分重合。“其中一组扰流组件20在布设方向上与涂布入口13及涂布出口14均相对”的意思是：在涂布宽度方向上，存在一组扰流组件20在涂布出口14所在平面的投影、涂布入口13在涂布出口14所在平面的投影及涂布出口14三者至少部分重合。
设置一组扰流组件20在布设方向上与涂布入口13及涂布出口14均相对，则从涂布入口13流向流道30的浆料，在流经该组扰流组件20时，能够较为平均地分配至其在涂布宽度方向上的两侧，从而以便于提高速度一致性。
根据本申请的一些实施例，可选地，参阅图8，涂布入口13、容纳腔15及涂布出口14具有相互重合的第一中心轴线。
其中一组扰流组件20的第二中心轴线与第一中心轴线重合。即为，涂布入口13、容纳腔15及涂布出口14均为轴对称图形，且均具有第一中心轴线，三者的第一中心轴线重合。扰流组件20也为中心对称图形，其具有第二中心轴线，第一中心轴线与第二中心轴线重合。
上述设置，使得从涂布入口13流向流道30的浆料，在流道30内能够更为平均地分配至在涂布宽度方向上的两侧，以提高速度一致性。
在此需要说明的是，上述只限定设于容纳腔15中的一组扰流组件20的布置，至于其他组扰流组件20的布设依据需要而定。如当涂布入口13、容纳腔15及涂布出口14均为轴对称图形时，其他扰流组件20在涂布宽度方向上可以对称设于上述扰流组件20的两侧。
根据本申请的一些实施例，可选地，流道30在扰流组件20处分流为至少两个分 流道，至少两个分流道在涂布出口14的上游汇流。
当容纳腔15中未设置有扰流组件20时，容纳腔15即形成流道30。而当容纳腔15中设置有扰流组件20时，流道30则由容纳腔15的腔壁与扰流组件20共同界定形成。
“流道30在扰流组件20处分流为至少两个分流道，至少两个分流道在涂布出口14的上游汇流”所要表达的意思是：当容纳腔15中设置一组扰流组件20时，则流道30与涂布入口13连通的部分在扰流组件20处分为两个分流道，两个分流道在涂布出口14的上游汇流。而当容纳腔15中设置多于一组扰流组件20时，则流道30与涂布入口13连通的部分在扰流组件20处分为至少两个分流道，至少两个分流道在涂布出口14的上游汇流。
上述设置，在保证扰流组件20与容纳腔15的腔壁界定形成不同流道30的前提下，避免扰流组件20干扰浆料从流道30流向涂布出口14，以方便涂布。
根据本申请的一些实施例，本申请还提供了一种涂布机，包括了上述任一项所述的涂布模头100。
根据本申请的一些实施例，参阅图1及图2，本申请提供了一种涂布模头100，涂布模头100包括涂布主体10及一组扰流组件20。涂布主体10包括第一模头11与第二模头12，第一模头11与第二模头12拼接形成长方体块状结构的涂布主体10。第一模头11与第二模头12之间形成涂布入口13、容纳腔15及涂布出口14。在布设方向上，涂布入口13与涂布出口14正对，扰流组件20与涂布入口13及涂布出口14均相对。
扰流组件20包括呈长方体块状的扰流基座21及多片扰流叠块22，扰流基座21在布设方向上的尺寸大于每个扰流叠块22的尺寸，全部扰流叠块22在布设方向上的尺寸相等。具体地，容纳腔15包括在布设方向上依次连通的第三部分153、第二部分152及第一部分151，第二部分152内形成有第一抵接面111与第二抵接面121，扰流基座21在第一方向上的两端分别与第一抵接面111及第二抵接面121抵接。扰流叠块22设于扰流基座21在布设方向上靠近涂布出口14的一侧，通过改变层叠设于扰流基座21上的扰流叠块22的个数，从而改变流道30，从而与浆料的黏度相匹配，从而调节浆料在流道30中所受到的流阻以调节挤出速度分布，进而保证不同黏度的浆料经涂布出口14在涂布宽度方向上的挤出速度的一致性，达到了提高产品质量的目的。
根据本申请的另一些实施例，参阅图4及图5，本申请提供了一种涂布模头100，与上述实施例的区别在于：扰流基座21的形状为工字型，扰流叠块22设于扰流基座21的凹槽211内。通过改变层叠设于扰流基座21上的扰流叠块22的个数，从而改变流道30，从而与浆料的黏度相匹配，从而调节浆料在流道30中所受到的流阻以调节挤出速度分布，进而保证不同黏度的浆料经涂布出口14在涂布宽度方向上的挤出速度的一致性，达到了提高产品质量的目的。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实 施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (15)

  1. 一种涂布模头，包括：
    涂布主体(10)，包括分体设置的第一模头(11)与第二模头(12)，所述第一模头(11)与所述第二模头(12)拼接并界定形成一容纳腔(15)；所述涂布主体(10)的相对两端分别开设有与所述容纳腔(15)连通的涂布入口(13)与涂布出口(14)；及
    扰流组件(20)，与所述容纳腔(15)的腔壁界定形成流道(30)；所述扰流组件(20)可调节地设置于所述容纳腔(15)中。
  2. 根据权利要求1所述的涂布模头，其中，所述扰流组件(20)的体积、形状和/或位置可调节；和/或
    所述扰流组件(20)可更换地设置于所述容纳腔(15)中。
  3. 根据权利要求1或2所述的涂布模头，其中，所述扰流组件(20)包括至少一个扰流件，所述扰流组件(20)中所述扰流件的数量可调节和/或所述扰流件的形状可改变地和/或位置可调节地设置于所述容纳腔(15)中。
  4. 根据权利要求3所述的涂布模头，其中，所述扰流件为两个以上；所述扰流件包括扰流基座(21)和至少一个扰流叠块(22)，所述扰流基座(21)固定于所述容纳腔(15)中，所述扰流叠块(22)与所述扰流基座(21)可拆卸连接。
  5. 根据权利要求4所述的涂布模头，其中，所述扰流叠块(22)可拆卸地连接于所述扰流基座(21)上，沿浆料运动方向，所述扰流叠块(22)的至少部分位于所述扰流基座(21)的上游和/或下游。
  6. 根据权利要求4-5任一项所述的涂布模头，其中，所述扰流基座(21)为工字型结构，所述工字型结构具有两个用于容纳所述扰流叠块(22)的凹槽(211)，两个所述凹槽(211)分别朝向所述涂布入口(13)方向和所述涂布出口(14)方向。
  7. 根据权利要求4-6任一项所述的涂布模头，其中，所述扰流基座(21)抵压于所述第一模头(11)与所述第二模头(12)之间并固定。
  8. 根据权利要求7所述的涂布模头，其中，所述第一模头(11)具有第一抵接面(111)，所述第二模头(12)具有与所述第一抵接面(111)间隔设置的第二抵接面(121)；
    所述第一抵接面(111)及所述第二抵接面(121)分别与所述扰流基座(21)的两端面相抵。
  9. 根据权利要求4-8任一项所述的涂布模头，其中，所述容纳腔(15)包括相互连通的第一部分(151)及第二部分(152)，所述第二部分(152)与所述涂布入口(13)连通，所述第一部分(151)与所述涂布出口(14)连通，所述第一部分(151)自与所述第二部分(152) 连通的一端到另一端的高度逐渐减小，所述扰流基座(21)固定于所述第二部分(152)内；和/或
    所述容纳腔(15)包括相互连通的第二部分(152)及第三部分(153)，所述第三部分(153)与所述涂布入口(13)连通，所述第二部分(152)与所述涂布出口(14)连通，所述第三部分(153)自与所述第二部分(152)连通的一端到另一端的高度逐渐减小，所述扰流基座(21)固定设于所述第二部分(152)内。
  10. 根据权利要求4-9任一项所述的涂布模头，其中，所述扰流组件(20)还包括固定件(23)，所述固定件(23)穿设于所述扰流基座(21)及所述扰流叠块(22)以使两者固定。
  11. 根据权利要求10所述的涂布模头，其中，所述扰流组件(20)包括至少两个所述固定件(23)，所述固定件(23)可更换地穿设于所述扰流基座(21)与所述扰流叠块(22)；
    所述固定件(23)的端面不超出所述扰流基座(21)与所述扰流叠块(22)的端面。
  12. 根据权利要求1或2所述的涂布模头，其中，所述涂布入口(13)与所述涂布出口(14)正对；
    其中一组所述扰流组件(20)在所述涂布入口(13)与所述涂布出口(14)的布设方向与所述涂布入口(13)及所述涂布出口(14)均相对。
  13. 根据权利要求12所述的涂布模头，其中，所述涂布入口(13)、所述容纳腔(15)及所述涂布出口(14)具有相互重合的第一中心轴线；
    其中一组所述扰流组件(20)的第二中心轴线与所述第一中心轴线重合。
  14. 根据权利要求1-13任一项所述的涂布模头，其中，所述流道(30)在所述扰流组件(20)处分流为至少两个分流道，至少两个所述分流道在所述涂布出口(14)的上游汇流。
  15. 一种涂布机，包括如权利要求1-14任一项所述的涂布模头。
PCT/CN2023/078693 2022-06-22 2023-02-28 涂布模头及涂布机 WO2023246155A1 (zh)

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JP2012210606A (ja) * 2011-03-31 2012-11-01 Dainippon Printing Co Ltd ダイヘッドおよびダイヘッドのスリットの隙間の大きさの調整方法
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