Anti-collision mechanism and coating equipment
By introducing a collision avoidance mechanism into the coating equipment, using the rotating frame and detection string to detect the protrusions on the substrate surface, the problem of collision between the coating die head and the substrate protrusion is solved, ensuring the coating quality and the safety of the die head .
Patent Information
- Application Number
- CN202420647209.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-01
AI Technical Summary
During the coating process of perovskite solar cells, the distance between the coating die head and the substrate is very close, and when the substrate is deformed or the surface foreign matter causes protrusion, it is easy to cause collision of the coating die head, affecting the coating quality and may cause damage.
A collision avoidance mechanism is designed, including a rotating frame, a detecting string and a sensor. The detecting string contacts the protruding contact between the surface of the substrate to drive the rotation of the rotating frame. The sensor detects the rotation of the rotating frame to determine whether there are protrusions on the surface of the substrate and controls the coating. The cloth die head stops or continues to apply to avoid collisions.
It effectively avoids collision between the coating die head and the protrusion of the substrate, ensures the coating quality and protects the coating die head, and improves the coating accuracy and safety.
Smart Images
Figure CN222306270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating equipment, in particular to an anti-collision mechanism and coating equipment. Background Art
[0002] In the field of new solar cells, the rapid development of perovskite solar cells in recent years has attracted wide attention from the scientific research community and the industrial community. In the process of preparing perovskite solar cells, it is necessary to coat the perovskite slurry on the substrate (such as glass). Due to the large coating area, thin coating, and low slurry viscosity, the coating process is difficult, so the coating device has extremely high precision requirements.
[0003] In the prior art, see Figure 1 The coating die 200 is used for flat coating. The bottom of the coating die 200 has a lip 201, and a long strip coating slit is provided at the lip 201. The slurry in the coating die 200 is output from the coating slit and coated on the substrate 100. During the actual coating, the distance between the coating die 200 and the substrate 100 is only between 50 μm and 100 μm. If the substrate 100 is slightly deformed, warped, or there is foreign matter on the surface, resulting in a protrusion A on the surface of the substrate 100, the coating die 200 will touch the protrusion A when moving, which will seriously affect the coating quality and even damage the coating die 200. Utility Model Content
[0004] Based on this, it is necessary to provide an anti-collision mechanism and coating equipment to improve the above defects, in view of the fact that in the prior art, the distance between the die head and the substrate is only between 50μm and 100μm during actual coating. If the substrate is slightly deformed, warped, or there are foreign objects on the surface, resulting in protrusions on the surface of the substrate, the coating die head will touch the protrusions when moving, seriously affecting the coating quality, and even causing damage to the coating die head.
[0005] An anti-collision mechanism, comprising:
[0006] A rotating frame rotatably connected to the coating die head; and
[0007] A detection string is tensioned on the rotating frame, and the detection string includes a detection section located at the bottom of the rotating frame; when the coating die head coats the substrate, the detection section can contact the protrusions on the surface of the substrate and drive the rotating frame to rotate; and
[0008] The sensor is fixedly arranged relative to the coating die head and is used for detecting the rotation of the rotating frame.
[0009] In one embodiment, the rotating frame includes a rotating shaft and a support rod assembly, the rotating shaft is rotatably connected to the coating die head around its own axis, the support rod assembly is arranged on the rotating shaft, and the detection string tension is arranged on the support rod assembly.
[0010] In one embodiment, the support rod assembly includes two support rods, both of which are connected to the rotating shaft and arranged at intervals along the axial direction of the rotating shaft, and each of the support rods has a first end located below the rotating shaft;
[0011] The portion of the detection string that is tensioned and disposed between the two first ends is the detection section.
[0012] In one embodiment, each of the support rods also has a second end located above the rotating shaft, and the anti-collision mechanism also includes a balance string, the ends of the balance string are fixedly connected to the rotating shaft and pass through the two second ends; the two ends of the detection string are fixedly connected to the rotating shaft and pass through the two first ends.
[0013] In one embodiment, the support rod assembly further includes a connecting rod, one end of which is connected to the second end, and the other end of which extends longitudinally in a direction away from the rotating shaft, and the sensor is used to detect the rotation of one end of the connecting rod away from the rotating shaft.
[0014] In one embodiment, the number of sensors is two, the support rod assembly includes two connecting rods, one end of the two connecting rods are respectively connected to the two second ends, and the two sensors are respectively used to detect the rotation of the other ends of the two connecting rods.
[0015] In one embodiment, the two support rods are arranged parallel to each other and are inclined relative to a vertical plane, and the vertical plane passes through the rotation axis of the rotating shaft;
[0016] The first end of each of the support rods is inclined relative to the vertical plane in a direction opposite to the traveling direction of the coating die head.
[0017] In one embodiment, the distance between the detection section and the substrate is a first distance, the distance between the coating die head and the substrate is a second distance, and the first distance is less than or equal to the second distance.
[0018] In one embodiment, the detection string is a metal wire or a nylon wire.
[0019] In one embodiment, the sensor is a displacement sensor.
[0020] A coating device comprises a coating die head and an anti-collision mechanism as described in any of the above embodiments, wherein the coating die head can be controlled to move along a travel direction to coat a substrate; and the rotating frame is located on one side of the coating die head in the travel direction.
[0021] With the above-mentioned anti-collision mechanism and coating equipment, when the coating die head moves along the traveling direction and performs coating, if the sensor does not detect the rotation of the rotating frame, it indicates that there is no protrusion on the surface of the substrate, and thus the coating die head can continue to perform coating; if the sensor detects that the rotating frame rotates relative to the coating die head, it indicates that there is a protrusion on the surface of the substrate, and at this time the coating die head is controlled to stop coating to avoid poor coating and damage to the coating die head. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a coating process demonstration diagram of a coating die head in the prior art;
[0023] Figure 2 This is a schematic structural diagram of an anti-collision mechanism in one embodiment of the utility model;
[0024] Figure 3 to Figure 4 for Figure 2 The anti-collision demonstration diagram (axonometric diagram) of the anti-collision mechanism during the coating process of the coating die head;
[0025] Figure 5 for Figure 2 The anti-collision demonstration diagram (side view) of the anti-collision mechanism during the coating process of the coating die head;
[0026] Figure 6 to Figure 7 for Figure 2 The anti-collision demonstration diagram shown is the anti-collision mechanism during the descending process of the coating die head. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" 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 intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0033] See also Figures 2 to 4 , an embodiment of the utility model provides a coating device. The coating device includes a coating die 200. The coating die 200 is located above the substrate 100 and can be controlled to move along the travel direction X. In the process of the coating die 200 moving along the travel direction X, the slurry in the coating die 200 is output from the coating slit of the coating die 200 and coated on the substrate 100, that is, the coating of the substrate 100 is achieved. It can be understood that the substrate 100 is laid horizontally and the travel direction X is a horizontal direction. The coating slit of the coating die 200 extends longitudinally along another horizontal direction perpendicular to the travel direction X, so that the coating die 200 is moved from one side of the substrate 100 to the other side of the substrate 100 along the travel direction X. The surface of the substrate 100 is coated.
[0034] It should be noted that, during the coating process of the substrate 100, the distance between the coating die head 200 and the substrate 100 is relatively close, for example, between 50 μm and 100 μm. Therefore, if there is a protrusion A on the surface of the substrate 100 due to deformation, warping or foreign matter on the surface of the substrate 100, the lip 201 of the coating die head 200 is likely to collide with the protrusion A when the coating die head 200 moves along the travel direction X, which seriously affects the coating quality and even causes damage to the coating die head 200.
[0035] In order to prevent the lip 201 of the coating die head 200 from colliding with the protrusion A on the surface of the substrate 100, the utility model further provides an anti-collision mechanism 300. The anti-collision mechanism 300 is installed on one side of the coating die head 200 in the travel direction X (specifically, Figure 3In the illustrated embodiment, the traveling direction X is from left to right, and the anti-collision mechanism 300 is installed on the right side of the coating die 200, so that when the coating die 200 is coating along the traveling direction X, the anti-collision mechanism 300 moves with the coating die 200. The anti-collision mechanism 300 can detect whether there is a protrusion A in the uncoated area of the substrate 100 while following the coating die 200 to move along the traveling direction X. If the anti-collision mechanism 300 does not detect the protrusion A, the coating die 200 continues to coat. If the anti-collision mechanism 300 detects the protrusion A, the coating die 200 stops coating, thereby avoiding the production of poorly coated products and avoiding damage to the coating die 200.
[0036] In the embodiment of the present application, the anti-collision mechanism 300 includes a rotating frame 10, a detection string 20 and a sensor 30. The rotating frame 10 is rotatably connected to one side of the coating die 200 in the travel direction X, that is, the rotating frame 10 can move with the coating die 200, and can also rotate relative to the coating die 200. The detection string 20 is tensioned on the rotating frame 10, and the detection string 20 includes a detection section 21, and the detection section 21 is located at the bottom of the rotating frame 10. When the coating die 200 coats the substrate 100, if there is a protrusion A on the surface of the substrate 100, the detection section 21 of the detection string 20 can contact the protrusion A on the surface of the substrate 100, and drive the rotating frame 10 to rotate relative to the coating die 200 under the blocking effect of the protrusion A. The sensor 30 is fixed relative to the coating die 200, and is used to detect the rotation of the rotating frame 10. Optionally, the sensor 30 can be a displacement sensor.
[0037] It should be noted that the sensor 30 can be mounted on the coating die 200 via a frame. Of course, the sensor 30 can also be mounted on other components of the coating device via a frame, as long as the sensor 30 and the coating die 200 are relatively fixed, which is not limited here.
[0038] In this way, when the coating die head 200 moves along the travel direction X and performs coating, if the sensor 30 does not detect the rotation of the rotating frame 10, it indicates that there is no protrusion A on the surface of the substrate 100, so the coating die head 200 can continue to coat; if the sensor 30 detects that the rotating frame 10 rotates relative to the coating die head 200, it indicates that there is a protrusion A on the surface of the substrate 100. At this time, the coating die head 200 is controlled to stop coating to avoid poor coating and damage to the coating die head 200.
[0039] It should be noted that in the present application, a tensioned detection string 20 is used to detect the protrusion A on the substrate 100. Since the detection string 20 is continuous, has good straightness and a certain rigidity, it can accurately contact the protrusion A on the surface of the substrate 100 and drive the rotating frame 10 to rotate, thereby ensuring that it is possible to accurately detect whether there is a protrusion A on the surface of the substrate 100.
[0040] It should also be noted that, in the absence of external force, the distance between the detection section 21 of the detection string 20 and the substrate 100 is the first distance. The distance between the coating die 200 and the substrate 100 is the second distance. In order to better avoid collision between the coating die 200 and the protrusion A on the substrate 100, the first distance needs to be less than or equal to the second distance.
[0041] Furthermore, the anti-collision mechanism 300 is installed on one side of the coating die 200 in the travel direction X, so that when the coating die 200 is coating, the anti-collision mechanism 300 is always located on the side of the coating die 200 facing the substrate 100 that has not been coated, so that the anti-collision mechanism 300 detects the surface of the substrate 100 that has not been coated. The longitudinal extension direction of the detection section 21 of the detection string 20 is roughly parallel to the longitudinal extension direction of the coating slit of the coating die 200, so that the area of the substrate 100 surface swept by the detection section 21 of the detection string 20 completely covers the area of the substrate 100 surface swept by the coating die 200, that is, it is ensured that the area where the coating die 200 is coating has been detected by the detection section 21 of the detection string 20 and has no protrusion A.
[0042] It should be noted that, in some embodiments, the detection string 20 may be made of metal wire or nylon wire, etc. In other embodiments, the detection string 20 may also be made of filaments of other materials, as long as it can drive the rotating frame 10 to rotate when it contacts the protrusion A on the surface of the substrate 100 in a tensioned state, and is not limited here.
[0043] Specifically in the embodiment, the coating device further includes a controller, which is in communication with the sensor 30. When the sensor 30 detects that the rotating frame 10 rotates, it indicates that the detection section 21 of the detection string 20 detects that there is a protrusion 100 on the substrate 100. At this time, the controller controls the coating die 200 to stop coating according to the detection result of the sensor 30, and issues an alarm to remind the operator to handle it. Optionally, the controller can be an industrial computer.
[0044] Please continue to see Figures 2 to 4As shown, in the embodiment of the present application, the rotating frame 10 includes a rotating shaft 11 and a support rod assembly (not shown). The rotating shaft 11 is rotatably connected to the coating die head 200 around its own axis, the support rod assembly is arranged on the rotating shaft 11, and the detection string 20 is tensioned and arranged on the bracket assembly. In this way, when the coating die head 200 moves along the travel direction X and performs coating, if the detection section 21 of the detection string 20 contacts the protrusion A on the surface of the substrate 100, then under the blocking effect of the protrusion A on the surface of the substrate 100, the detection string 20, the support rod assembly and the rotating shaft 11 rotate relative to the coating die head 200 as a whole, so that the sensor 30 detects the rotation of the support rod assembly, and then judges the presence of the protrusion A on the substrate 100 according to the detection result of the sensor 30. Optionally, the two ends of the rotating shaft 11 are respectively installed on the coating die head 200 through bearings, so that the rotating shaft 11 can rotate relative to the coating die head 200 around its own axis under the action of external force.
[0045] Specifically in the embodiment, the support rod assembly includes two support rods 12. The two support rods 12 are connected to the rotating shaft 11 and are arranged at intervals along the axial direction of the rotating shaft 11. Each support rod 12 has a first end 121 located below the rotating shaft 11, and the portion of the detection string 20 tensioned and arranged between the first ends 121 of the two support rods 12 is the above-mentioned detection section 21.
[0046] Furthermore, each support rod 12 also has a second end 123 located above the rotating shaft 11. The anti-collision mechanism also includes a balance string 22, the ends of which are fixedly connected to the rotating shaft 11 and are wound around the two second ends 123.
[0047] Both ends of the detection string 20 are fixedly connected to the rotating shaft 11 and are wound around the first ends 121 of the two support rods 12. In this way, the detection string 20 is tightened by the first ends 121 of the two support rods 12, so that the detection string 20 is in a tensioned state, and the balance string 22 is tightened by the second ends 123 of the two support rods 12, so that the balance string 22 is in a tensioned state, with a simple structure and convenient disassembly and assembly.
[0048] It should be noted that the detection string 20 is tensioned at the first end 121 of the two support rods 12, and the balance string 22 is tensioned at the second end 123 of the two support rods 12, which is beneficial to maintaining force balance on the two support rods 12 and making the assembly structure of the two support rods 12 and the rotating shaft 11 more stable.
[0049] Furthermore, the support rod assembly further includes a connecting rod 13, one end of which is connected to the second end 123 of the support rod 12, and the other end of the connecting rod 13 extends longitudinally in a direction away from the rotating shaft 11. The sensor 30 is used to detect the rotation of the end of the connecting rod 13 away from the rotating shaft 11. In this way, since the end of the connecting rod 13 away from the rotating shaft 11 is farther away from the rotating shaft 11, the offset distance of the end of the connecting rod 13 away from the rotating shaft 11 is larger when the rotating shaft 11 rotates (that is, it has the effect of amplifying the offset of the detection section 21 of the detection string 20), ensuring that the sensor 30 can accurately detect the rotation of the connecting rod 13.
[0050] Optionally, two connecting rods 13 are provided, and two sensors 30 are also provided. One end of the two connecting rods 13 is respectively connected to the second end 123 of the two supporting rods 12, and the two sensors 30 are respectively used to detect the rotation of the other end of the two connecting rods 13. In this way, the rotation of the rotating frame 10 is detected by using two sensors 30 at the same time, ensuring that the detection result is more accurate and reliable.
[0051] See also Figure 5 As shown, in the embodiment of the present application, two support rods 12 are arranged parallel to each other and are both inclined relative to a vertical plane B, and the vertical plane B passes through the rotation axis of the rotating shaft 11. The first end 121 of each support rod 12 is inclined relative to the vertical plane B in the direction opposite to the travel direction X of the coating die 200, that is, the first end 121 of each support rod 12 is inclined relative to the vertical plane B toward the lip 201 of the coating die 200, and the portion of the detection string 20 located between the two first ends 121 is the above-mentioned detection section 21. In this way, when the detection section 21 touches the protrusion A on the surface of the substrate 100, the detection string 20 can accurately drive the first ends 121 of the two support rods 12 to deviate toward the lip 201 of the coating die 200, so that the sensor 30 can accurately detect the deflection direction of the rotating frame 10, and judge whether there is a protrusion A on the substrate 100 according to the deflection direction of the rotating frame 10, which is conducive to improving the detection accuracy of the sensor 30. For example, if the sensor 30 detects that the first ends 121 of the two support rods 12 are offset away from the lip 201 of the coating die 200 , it cannot be determined that there is a protrusion A on the substrate 100 , and the rotation of the rotating frame 10 may be caused by other reasons.
[0052] Specific to Figure 5 In the embodiment shown, when the sensor 30 detects that the two support rods 12 rotate clockwise, it indicates that there is a protrusion A on the substrate 100, and the coating die head 200 needs to be controlled to stop coating. When the sensor 30 detects that the two support rods 12 rotate counterclockwise, it cannot be determined that there is a protrusion A on the substrate 100, and the coating die head 200 can continue coating while ensuring safe operation.
[0053] It should be noted that, in order to ensure that the two support rods 12 are in an inclined state, the center of gravity of the entire rotating frame 10 can be changed by means of counterweights, so that the two support rods 12 are in the above-mentioned inclined state when not subject to external forces (that is, when the detection section 21 is not in contact with the protrusion A on the substrate 100). Specifically, in one embodiment, the above-mentioned balance string 22 can be used to play a counterweight role to change the overall center of gravity of the rotating frame 10, so that the two support rods 12 are in the above-mentioned inclined state when not subject to external forces. Of course, in other embodiments, counterweight components such as counterweight blocks or counterweight rods can also be installed on the two support rods 12 or the rotating shaft 11, so that the two support rods 12 are in the above-mentioned inclined state when not subject to external forces, and this is not limited here.
[0054] It is also necessary to note that see Figure 6 and Figure 7 As shown, before the coating die 200 is coated, it is necessary to control the coating die 200 to gradually approach the substrate 100 until the distance between the coating die 200 and the substrate 100 meets the process requirements. If the coating die 200 is excessively lowered due to program errors or other factors, the detection section 21 of the detection string 20 will contact the substrate 100 before the coating die 200. Since the two support rods 12 are inclined, the detection section 21 of the detection string 20 can drive the rotating frame 10 to rotate under the action of the reaction force when contacting the substrate 100 and be detected by the sensor 30. When the sensor 30 detects that the rotating frame 10 is rotating, the controller controls the coating die 200 to stop descending, thereby preventing the coating die 200 from directly hitting the substrate 100 and causing damage to the coating die 200.
[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0056] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An anti-collision mechanism, characterized in that: include: A rotating frame (10) rotatably connected to the coating die head (200); and a detection string (20) which is tensioned on the rotating frame (10), the detection string (20) comprising a detection section (21) located at the bottom of the rotating frame (10); when the coating die head (200) is coating the substrate (100), the detection section (21) can contact the protrusion (A) on the surface of the substrate (100) and drive the rotating frame (10) to rotate; and The sensor (30) is fixedly arranged relative to the coating die head (200) and is used to detect the rotation of the rotating frame (10).
2. The anti-collision mechanism according to claim 1, characterized in that: The rotating frame (10) comprises a rotating shaft (11) and a support rod assembly. The rotating shaft (11) is rotatably connected to the coating die head (200) around its own axis. The support rod assembly is arranged on the rotating shaft (11). The detection string (20) is tensioned and arranged on the support rod assembly.
3. The anti-collision mechanism according to claim 2, characterized in that: The support rod assembly comprises two support rods (12), both of which are connected to the rotating shaft (11) and are arranged at intervals along the axial direction of the rotating shaft (11), and each of the support rods (12) has a first end (121) located below the rotating shaft (11); The portion of the detection string (20) that is tensioned and arranged between the two first ends (121) is the detection section (21).
4. The anti-collision mechanism according to claim 3, characterized in that: Each of the support rods (12) also has a second end (123) located above the rotating shaft (11), and the anti-collision mechanism also includes a balance string (22), the ends of which are fixedly connected to the rotating shaft (11) and are wound around the two second ends (123); The ends of the detection string (20) are fixedly connected to the rotating shaft (11) and are wound around the two first ends (121).
5. The anti-collision mechanism according to claim 4, characterized in that: The support rod assembly also includes a connecting rod (13), one end of the connecting rod (13) is connected to the second end (123), and the other end of the connecting rod (13) extends longitudinally in a direction away from the rotating shaft (11), and the sensor (30) is used to detect the rotation of one end of the connecting rod (13) away from the rotating shaft (11).
6. The anti-collision mechanism according to claim 4, characterized in that: The sensors (30) are provided in two numbers, the support rod assembly comprises two connecting rods (13), one end of the two connecting rods (13) is respectively connected to the two second ends (123), and the two sensors (30) are respectively used to detect the rotation of the other ends of the two connecting rods (13).
7. The anti-collision mechanism according to claim 3, characterized in that: The two support rods (12) are arranged parallel to each other and are both inclined relative to a vertical plane (B), and the vertical plane (B) passes through the rotation axis of the rotating shaft (11); The first end (121) of each of the support rods (12) is inclined relative to the vertical plane (B) in a direction opposite to the travel direction (X) of the coating die head (200).
8. The anti-collision mechanism according to claim 1, characterized in that: The distance between the detection section (21) and the substrate (100) is a first distance, the distance between the coating die head (200) and the substrate (100) is a second distance, and the first distance is less than or equal to the second distance.
9. The anti-collision mechanism according to claim 1, characterized in that: The detection string (20) is a metal wire or a nylon wire.
10. The anti-collision mechanism according to claim 1, characterized in that: The sensor (30) is a displacement sensor.
11. A coating device, characterized in that: The invention comprises a coating die head (200) and an anti-collision mechanism (300) as described in any one of claims 1 to 10, wherein the coating die head (200) can be moved in a controlled manner along a travel direction (X) to coat a substrate (100); and the rotating frame (10) is located on one side of the coating die head (200) in the travel direction (X).