Coating die head and coating system

Abstract

The utility model discloses a coating die head and a coating system, the coating die head comprises: a first die head, a receiving cavity is provided on the first die head; a second die head, the first die head is connected with the second die head to form a coating slit, the receiving cavity is connected with the coating slit; a flow regulating device, the flow regulating device comprises an electric drive mechanism and an adjusting mechanism, the adjusting mechanism is connected with the driving end of the electric drive mechanism, the electric drive mechanism is arranged on the first die head, the adjusting mechanism is located in the receiving cavity, and the electric drive mechanism can drive the adjusting mechanism to move along the thickness direction of the coating slit to adjust the discharge amount of the coating slit. The technical solution provided by the present application can accurately control the adjustment parameters by driving the adjusting mechanism with the electric drive mechanism, and the adjustment accuracy is high, which can improve the production efficiency.

Description

Technical Field

[0001] The present application belongs to the field of coating technology, and in particular relates to a coating die head and a coating system. Background Art

[0002] As a precise wet coating technology, slot extrusion coating works on the principle that the slurry is transferred to the substrate by squeezing along the slit of the coating die under a certain pressure and flow rate. Compared with other coating methods, it has many advantages, such as fast coating speed, high precision, and uniform wet thickness; the coating system is closed, which can prevent pollutants from entering during the coating process, has high slurry utilization, can maintain stable slurry properties, and can adapt to different slurry viscosities and solid content ranges.

[0003] In the prior art, a manual flow adjustment mechanism is provided on the coating die head to adjust the height of the gasket opening to adjust the flow in the coating slit, thereby adjusting the thickness of the coating. However, manual adjustment is affected by human factors, and the adjustment error is large, which is prone to inadequate adjustment or excessive adjustment, resulting in uneven coating thickness and poor coating quality. In addition, manual adjustment leads to low adjustment efficiency, which is not conducive to automated production. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a coating die and a coating system.

[0005] According to a first aspect of an embodiment of the present application, a coating die is provided, comprising:

[0006] A first die head, wherein a receiving cavity is formed on the first die head;

[0007] a second die head, wherein the first die head is connected to the second die head to form a coating slit, and the accommodating cavity is in communication with the coating slit;

[0008] A flow regulating device, the flow regulating device includes an electric drive mechanism and an adjusting mechanism, the adjusting mechanism is connected to the driving end of the electric drive mechanism, the electric drive mechanism is arranged on the first die head, the adjusting mechanism is located in the accommodating cavity, and the electric drive mechanism can drive the adjusting mechanism to move along the thickness direction of the coating slit to adjust the discharge amount of the coating slit.

[0009] Optionally, the electric drive mechanism includes a motor, an electric-controlled air cylinder or an electric-controlled hydraulic cylinder.

[0010] Optionally, the accommodating cavity comprises a first cavity and a second cavity which are connected, the first cavity is farther away from the coating slit than the second cavity, and the cross-sectional area of ​​the first cavity along the first direction is smaller than the cross-sectional area of ​​the second cavity along the first direction;

[0011] The adjustment mechanism also includes an adjustment block and a connecting rod, wherein the connecting rod is connected to the adjustment block, the connecting rod is located in the first cavity, and the adjustment block is located in the second cavity. The cross-sectional area of ​​the adjustment block along the first direction is greater than the cross-sectional area of ​​the first cavity along the first direction.

[0012] Optionally, the coating die head further includes a first mounting bracket, the first mounting bracket is disposed on the first die head, and the electric drive mechanism is fixed to the first mounting bracket.

[0013] Optionally, the coating die head further includes a second mounting bracket, the second mounting bracket is disposed on the first die head, and the adjustment mechanism is slidably connected to the second mounting bracket.

[0014] Optionally, the coating die head includes a plurality of the flow regulating devices, and the plurality of the flow regulating devices are arranged at intervals along the second direction.

[0015] Optionally, the coating die head further comprises an interface module, and the plurality of flow regulating devices are all electrically connected to the interface module.

[0016] According to a second aspect of an embodiment of the present application, a coating system is provided, comprising the above-mentioned coating die head.

[0017] Optionally, the coating system further comprises a control module, and the control module is communicatively connected with the flow regulating device; or

[0018] The control module is communicatively connected with the interface module.

[0019] Optionally, the coating system further comprises a thickness measuring mechanism, and the thickness measuring mechanism is communicatively connected to the control module.

[0020] One technical effect of the embodiments of the present application is that the adjustment parameters can be accurately controlled by driving the adjustment mechanism through an electric drive mechanism, and the adjustment accuracy is high, which can improve production efficiency; compared with manual adjustment, driving the adjustment mechanism through an electric drive mechanism can reduce the possibility of human operating errors and reduce labor costs.

[0021] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0023] Figure 1 It is a schematic diagram of the structure of the coating die head in the embodiment of the present application;

[0024] Figure 2 for Figure 1 Cross-sectional view at AA in .

[0025] Explanation of the reference numerals: coating die 100; first die 1; accommodating cavity 11; first cavity 111; second cavity 112; first end face 12; second end face 13; second die 2; coating slit 3; flow regulating device 4; electric drive mechanism 41; regulating mechanism 42; regulating block 421; connecting rod 422; first mounting bracket 43; first connecting plate 431; second connecting plate 432; reinforcing plate 433; second mounting bracket 44; coupling 45; interface module 5. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] First, the first direction, the second direction, and the third direction mentioned in the embodiment of the present application are as follows: Figure 1 and Figure 2 The marked directions. The first direction, the second direction and the third direction intersect each other.

[0032] like Figure 1 and Figure 2As shown, according to the first aspect of an embodiment of the present application, a coating die 100 is provided, comprising a first die 1, a second die 2 and a flow regulating device 4; a accommodating cavity 11 is provided on the first die 1; the first die 1 is connected to the second die 2 and forms a coating slit 3, and the accommodating cavity 11 is communicated with the coating slit 3; the flow regulating device 4 comprises an electric drive mechanism 41 and an adjusting mechanism 42, the adjusting mechanism 42 is connected to the driving end of the electric drive mechanism 41, the electric drive mechanism 41 is arranged on the first die 1, and the adjusting mechanism 42 is located in the accommodating cavity 11, and the electric drive mechanism 41 can drive the adjusting mechanism 42 to move along the thickness direction of the coating slit 3 to adjust the discharge amount of the coating slit 3.

[0033] The embodiment of the present application provides a coating die head 100, which can be used to coat active substances on the surface of a substrate to form an active substance layer on the surface of the substrate. The coating die head 100 is suitable for a coating device or a coating system.

[0034] like Figure 1 and Figure 2 As shown, the coating die 100 includes a first die 1, a second die 2 and a flow regulating device 4. The first die 1 is fixedly connected to the second die 2, and a coating slit 3 is formed between the first die 1 and the second die 2; the first die 1 has a first end face 12 and a second end face 13, the second end face 13 is formed at the boundary of the coating slit 3, and a receiving cavity 11 is provided on the first die 1, the receiving cavity 11 passes through the first end face 12 and the second end face 13, and the receiving cavity 11 is connected to the coating slit 3.

[0035] The flow regulating mechanism 42 includes an electric drive mechanism 41 and a regulating mechanism 42 . The driving end of the electric drive mechanism 41 is connected to the regulating mechanism 42 . The electric drive mechanism 41 can drive the regulating mechanism 42 to move along a preset direction, that is, along the third direction.

[0036] The electric drive mechanism 41 is arranged on the first die head 1, specifically on the first end face 12 of the first die head 1. The adjustment mechanism 42 is located in the accommodating cavity 11. The electric drive mechanism 41 drives the adjustment mechanism 42 to move along the thickness direction of the coating slit 3, that is, the third direction, so as to adjust the distance that the adjustment mechanism 42 extends into the coating slit 3, thereby adjusting the discharge amount of the coating slit 3, thereby realizing the adjustment of the thickness of the coating.

[0037] It is further explained that by driving the adjusting mechanism 42 through the electric drive mechanism 41, the adjusting parameters can be accurately controlled. For example, the distance that the adjusting mechanism 42 is extended into the coating slit 3 by the electric drive mechanism 41 has a high adjustment accuracy, which can improve production efficiency. Compared with manual adjustment, driving the adjusting mechanism 42 through the electric drive mechanism 41 can reduce the possibility of human operating errors and reduce labor costs.

[0038] In an optional implementation, the electric drive mechanism 41 includes a motor, an electric-controlled air cylinder or an electric-controlled hydraulic cylinder.

[0039] In one embodiment, the electric drive mechanism 41 may include an electric-controlled air cylinder or an electric-controlled hydraulic cylinder, wherein the electric-controlled air cylinder and the electric-controlled hydraulic cylinder may control the operation of the air cylinder or the hydraulic cylinder through a solenoid valve.

[0040] In another embodiment, the electric drive mechanism 41 may include a motor, a servo drive, a reducer, a position sensor and a ball screw. The servo drive is connected to the motor in communication, and the servo drive can control the motor to work according to the received command signal. The driving end of the motor is connected to the ball screw, and the motor can drive the moving end of the ball screw to move along a preset direction. The position sensor is used to detect whether the moving end of the ball screw reaches the preset position; the reducer is connected to the motor to convert the high-speed rotation of the motor into a lower output speed, so as to accurately control the movement of the moving end of the ball screw.

[0041] In an optional embodiment, the accommodating cavity 11 includes a first cavity 111 and a second cavity 112 that are connected, the first cavity 111 is away from the coating slit 3 relative to the second cavity 112, and the cross-sectional area of ​​the first cavity 111 along the first direction is smaller than the cross-sectional area of ​​the second cavity 112 along the first direction; the adjustment mechanism 42 also includes an adjustment block 421 and a connecting rod 422, the connecting rod 422 is connected to the adjustment block 421, the connecting rod 422 is located in the first cavity 111, the adjustment block 421 is located in the second cavity 112, and the cross-sectional area of ​​the adjustment block 421 along the first direction is larger than the cross-sectional area of ​​the first cavity 111 along the first direction.

[0042] like Figure 2As shown, the accommodating cavity 11 includes a first cavity 111 and a second cavity 112 that are connected. The first cavity 111 is far away from the coating slit 3 relative to the second cavity 112, that is, the first cavity 111 is close to the first end surface 12, and the second cavity 112 is close to the second end surface 13; the cross-sectional area of ​​the first cavity 111 along the first direction is smaller than the cross-sectional area of ​​the second cavity 112 along the first direction, the cross-sectional shape of the first cavity 111 along the first direction can be circular, rectangular, triangular or other shapes, the cross-sectional shape of the second cavity 112 along the first direction can be circular, rectangular, triangular or other shapes, and the cross-sectional shape of the first cavity 111 along the first direction is the same as the cross-sectional shape of the second cavity 112 along the first direction. The shapes of the cross sections may be the same or different; the adjusting mechanism 42 includes a connecting rod 422 and an adjusting block 421, the adjusting block 421 is connected to the connecting rod 422, the connecting rod 422 is connected to the driving end of the electric drive mechanism 41 through a coupling 45, the connecting rod 422 is located in the first cavity 111, and the adjusting block 421 is located in the second cavity 112, wherein the cross-sectional area of ​​the adjusting block 421 along the first direction is greater than the cross-sectional area of ​​the first cavity 111 along the first direction, the cross-sectional shape of the adjusting block 421 along the first direction may be circular, rectangular, triangular or other shapes, and the cross-sectional shape of the adjusting block 421 along the first direction may be the same as or different from the cross-sectional shape of the first cavity 111 along the first direction.

[0043] Further explanation: by setting the cross-sectional area of ​​the adjusting block 421 along the first direction to be larger than the cross-sectional area of ​​the first cavity 111 along the second direction, on the one hand, a smaller accommodating cavity 11 is opened in the first die head 1, thereby improving the structural strength of the first die head 1; on the other hand, the cross-sectional area of ​​the adjusting block 421 can be increased, thereby reducing the number of flow regulating devices 4.

[0044] In an optional implementation, the coating die head 100 further includes a first mounting bracket 43 , the first mounting bracket 43 is disposed on the first die head 1 , and the electric drive mechanism 41 is fixed to the first mounting bracket 43 .

[0045] like Figure 2 As shown, the coating die 100 also includes a first mounting bracket 43; the first mounting bracket 43 is fixed on the first end face 12 of the first die 1, and the electric drive mechanism 41 is fixed on the first mounting bracket 43, so as to improve the stability of the electric drive mechanism 41 during operation, thereby improving the adjustment accuracy of the adjustment mechanism 42.

[0046] Further description, the first mounting bracket 43 includes a first connecting plate 431 and a second connecting plate 432, the end of the first connecting plate 431 is connected to the end of the second connecting plate 432, the first connecting plate 431 and the second connecting plate 432 are connected at an angle, preferably a right angle, and a gap is formed between the first end face 12 and the first connecting plate 431, and the second mounting bracket 44 is arranged in the gap; the electric drive mechanism 41 is fixed on the first connecting plate 431, and the second connecting plate 432 is fixed on the first end face 12 of the first die head 1; the first mounting bracket 43 also includes a reinforcing plate 433, which connects the first connecting plate 431 and the second connecting plate 432, thereby improving the connection stability between the first connecting plate 431 and the second connecting plate 432.

[0047] To further explain, a through hole is formed on the first connecting plate 431 , and the driving end of the electric driving mechanism 41 passes through the through hole to be connected with the adjusting mechanism 42 .

[0048] In an optional embodiment, the coating die head 100 further includes a second mounting bracket 44 , the second mounting bracket 44 is disposed on the first die head 1 , and the adjustment mechanism 42 is slidably connected to the second mounting bracket 44 .

[0049] like Figure 2 As shown, the coating die 100 also includes a second mounting bracket 44, which is arranged on the first end face 12 of the first die 1, and the adjusting mechanism 42 is slidably connected to the second mounting bracket 44, and the adjusting mechanism 42 is connected to the electric driving mechanism 41, and the electric driving mechanism 41 can drive the adjusting mechanism 42 to slide relative to the second mounting bracket 44 along the third direction, so as to adjust the distance that the adjusting mechanism 42 extends into the coating slit 3, so as to adjust the discharge amount of the coating slit 3, thereby realizing the adjustment of the thickness of the coating.

[0050] To further explain, the adjusting mechanism 42 is slidably connected to the second mounting bracket 44 , the adjusting mechanism 42 can move along the third direction, and the second mounting bracket 44 can guide the adjusting mechanism 42 .

[0051] In a specific embodiment, a through hole in the third direction is opened on the second mounting bracket 44, and the connecting rod 422 passes through the through hole. The electric drive mechanism 41 can drive the connecting rod 422 to move axially along the through hole, and the second mounting bracket 44 can provide a guide for the connecting rod 422.

[0052] In another embodiment, a slide groove is provided on the second mounting bracket 44, and the slide groove is arranged along a third direction. The connecting rod 422 is slidably connected to the slide groove. The electric drive mechanism 41 can drive the connecting rod 422 to move along the slide groove, and the second mounting bracket 44 can provide a guide for the connecting rod 422.

[0053] Further description, in the third direction, the second mounting bracket 44 is located in the gap between the first connecting plate 431 and the first end face 12. Since the first connecting plate 431 and the second connecting plate 432 are connected at an angle, an accommodating space is formed between the first connecting plate 431, the second connecting plate 432 and the first end face 12, and the second mounting bracket 44 is located in the accommodating space, thereby also providing an installation space for the second mounting bracket 44.

[0054] In an optional implementation, the coating die head 100 includes a plurality of the flow regulating devices 4, and the plurality of the flow regulating devices 4 are spaced apart along the second direction.

[0055] like Figure 1 As shown, the coating die head 100 includes a plurality of flow regulating devices 4, which are arranged at intervals along the second direction, wherein the second direction is also the length direction of the coating slit 3. The first die head 1 is provided with a plurality of accommodating cavities 11, and an adjusting mechanism 42 is correspondingly arranged in each accommodating cavity 11, so that the discharge amount of the coating slit 3 can be uniformly adjusted in the length direction of the coating slit 3, so that the thickness of the coating is more uniform.

[0056] To further illustrate, the length direction of the first mounting bracket 43 is the second direction, and the electric drive mechanisms 41 of the plurality of flow regulating devices 4 are all connected to the first mounting bracket 43 , thereby reducing the number of installation steps and simplifying the structure of the coating die head 100 .

[0057] To further illustrate, a plurality of flow regulating devices 4 are provided, and each flow regulating device 4 can individually control and adjust the discharge amount of the coating slit 3 at the corresponding position according to the thickness of the coating detected by the thickness measuring mechanism at each position on the substrate.

[0058] In an optional implementation, the coating die head 100 further includes an interface module 5 , and the plurality of flow regulating devices 4 are all electrically connected to the interface module 5 .

[0059] like Figure 2 As shown, the coating die head 100 further includes an interface module 5, and the electric drive mechanisms 41 of the multiple flow regulating devices 4 are all electrically connected to the interface module 5. Among them, the wiring can be simplified, and the number of required cables can be reduced by connecting multiple electric drive mechanisms 41 through the interface module 5, thereby simplifying the wiring and installation process; the electric drive mechanisms 41 can be centrally controlled, so that the start, stop, speed and direction of all electric drive mechanisms 41 can be uniformly controlled, thereby improving the convenience of operation; when multiple electric drive mechanisms 41 are required to work together, the actions of each flow regulating device 4 can be accurately synchronized; and space occupation can be reduced and costs can be reduced.

[0060] According to a second aspect of an embodiment of the present application, a coating system is provided, comprising the coating die 100 described above.

[0061] In an optional implementation, the coating system further includes a control module, and the control module is communicatively connected to the flow regulating device 4 ; or the control module is communicatively connected to the interface module 5 .

[0062] In a specific embodiment, the coating system includes a control module, which is in communication with the flow regulating device 4, specifically, the control module is in communication with the electric drive mechanism 41, and the control module can send a control instruction to the drive module to control the electric drive mechanism 41 to drive the regulating mechanism 42 to move along a preset direction, that is, along the third direction, so as to adjust the discharge amount of the coating slit 3. By controlling the operation of the electric drive mechanism 41 through the control module, the regulation efficiency and regulation accuracy can be improved.

[0063] Among them, the control module can control any one of the flow regulating devices 4 to work, that is, the control module controls any one of the electric drive mechanisms 41 to drive the regulating mechanism 42 to move along the third direction, thereby adjusting the discharge amount at this position in the coating slit 3; the control module has also controlled the flow regulating devices 4 to work at the same time, that is, the control module controls the electric drive mechanism 41 to drive the corresponding regulating mechanism 42 to move along the third direction, thereby adjusting the discharge amount of the coating slit 3.

[0064] In another specific embodiment, the coating system includes a control module, which is communicatively connected to the interface module 5. Specifically, the control module can send a control instruction to the interface module 5, and the interface module 5 sends the control instruction to the electric drive mechanism 41 of the plurality of flow regulating devices 4, thereby controlling the plurality of electric drive mechanisms 41 to simultaneously drive the corresponding regulating mechanism 42 to move along a preset direction, that is, along a third direction, thereby adjusting the discharge amount of the coating slit 3. By controlling the operation of the electric drive mechanism 41 through the control module, the adjustment efficiency and adjustment accuracy can be improved.

[0065] In an optional embodiment, the coating system further includes a thickness measuring mechanism, and the thickness measuring mechanism is communicatively connected to the control module.

[0066] Further explanation, the coating system also includes a thickness measuring mechanism, which is communicatively connected to the control module. The thickness measuring mechanism is used to detect the thickness of the coating, and the thickness measuring mechanism transmits the detected thickness of the coating to the control module. The control module determines whether it is necessary to adjust the discharge amount of the coating slit 3 according to the received thickness of the coating. If it is necessary to adjust the discharge amount of the coating slit 3, the control module sends a command to the electric drive mechanism 41 or the interface module 5 to control the electric drive mechanism 41 to drive the adjustment mechanism 42 to move along a preset direction, that is, move along the third direction, so as to adjust the discharge amount of the coating slit 3, thereby adjusting the thickness of the coating.

[0067] By setting up a thickness measuring mechanism, the coating thickness can be automatically adjusted, thereby improving the adjustment efficiency and adjustment accuracy and saving labor costs.

[0068] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A coating die head, characterized in that: include: A first die head, wherein a receiving cavity is formed on the first die head; a second die head, wherein the first die head is connected to the second die head to form a coating slit, and the accommodating cavity is in communication with the coating slit; A flow regulating device, the flow regulating device includes an electric drive mechanism and an adjusting mechanism, the adjusting mechanism is connected to the driving end of the electric drive mechanism, the electric drive mechanism is arranged on the first die head, the adjusting mechanism is located in the accommodating cavity, and the electric drive mechanism can drive the adjusting mechanism to move along the thickness direction of the coating slit to adjust the discharge amount of the coating slit.

2. The coating die head according to claim 1, characterized in that: The electric drive mechanism includes a motor, an electric-controlled air cylinder or an electric-controlled hydraulic cylinder.

3. The coating die head according to claim 2, characterized in that: The accommodating cavity comprises a first cavity and a second cavity which are connected, the first cavity is farther away from the coating slit than the second cavity, and the cross-sectional area of ​​the first cavity along the first direction is smaller than the cross-sectional area of ​​the second cavity along the first direction; The adjustment mechanism also includes an adjustment block and a connecting rod, wherein the connecting rod is connected to the adjustment block, the connecting rod is located in the first cavity, and the adjustment block is located in the second cavity. The cross-sectional area of ​​the adjustment block along the first direction is greater than the cross-sectional area of ​​the first cavity along the first direction.

4. The coating die head according to claim 1, characterized in that: The coating die head further includes a first mounting bracket, the first mounting bracket is arranged on the first die head, and the electric drive mechanism is fixed to the first mounting bracket.

5. The coating die head according to claim 1, characterized in that: The coating die head further comprises a second mounting bracket, the second mounting bracket is arranged on the first die head, and the adjustment mechanism is slidably connected to the second mounting bracket.

6. The coating die head according to claim 1, characterized in that: The coating die head includes a plurality of the flow regulating devices, and the plurality of the flow regulating devices are arranged at intervals along the second direction.

7. The coating die head according to claim 6, characterized in that: The coating die head also includes an interface module, and the plurality of flow regulating devices are all electrically connected to the interface module.

8. A coating system, characterized in that: It comprises a coating die as described in any one of claims 1 to 7.

9. The coating system according to claim 8, characterized in that: The coating system further comprises a control module, and the control module is communicatively connected with the flow regulating device; or The control module is communicatively connected with the interface module.

10. The coating system according to claim 9, characterized in that: The coating system further comprises a thickness measuring mechanism, and the thickness measuring mechanism is communicatively connected with the control module.

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