A coating production line coating rack position recognition structure

Abstract

The utility model discloses a kind of coating production line's coating rack position identification structure, including coating chamber group, rack rotary conveying line and control system, rack rotary conveying line is set to one side of coating chamber group, rack rotary conveying line includes front transfer platform, rotary frame assembly and rear transfer platform sequentially arranged along front-back direction, rotary frame assembly and the front side of coating chamber group where front transfer platform is located, rear transfer platform is located at the back side of coating chamber group and rotary frame assembly;Wherein, the upper portion of each rotary frame is provided with at least one position detection device for detecting coating rack, and all position detection devices are electrically connected with control system. By adopting the above structure, when the partially material after coating is broken and falls at the rotary frame assembly, the falling material will not block the position detection device on the upper portion of the rotary frame, so the control system can accurately detect and identify the position of the coating rack through the position detection device.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating technology, and in particular to a coating material rack position identification structure for a coating production line. Background Technology

[0002] As is well known, continuous vacuum coating production lines have advantages such as high production efficiency and stable processes, and are widely used in modern industrial production. To achieve continuous production, the coating chamber assembly is arranged sequentially along the direction of the coating material rack's movement, consisting of a front buffer chamber, a coating chamber, and a rear buffer chamber. A material rack rotary conveyor line is located on one side of the coating chamber assembly. This rotary conveyor line includes a front transfer platform, a rotary frame assembly, and a rear transfer platform. The rotary frame assembly comprises multiple rotary frames connected in sequence. Each rotary frame has a first conveying component at its lower part for transporting the coating material rack. One end of the front transfer platform is located in front of the rotary frame assembly, and the other end is located in front of the coating chamber assembly. The upper surface of the front transfer platform is equipped with a mechanism for transferring the coating material rack from the rotary frame assembly to the rear transfer platform. The second conveying assembly transports the coating material rack to the coating chamber group. One end of the rear transfer platform is located at the rear of the coating chamber group, and the other end is located at the rear of the rotary frame assembly. The upper surface of the rear transfer platform is equipped with a third conveying assembly for transporting the coating material rack from the rear of the coating chamber group to the rear of the rotary frame assembly. The lower part of the rotary frame is equipped with a position detection sensor for detecting the position of the coating material rack. All position detection sensors are electrically connected to the control system of the continuous vacuum coating production line. The control system can detect in real time which rotary frame of the rotary frame assembly the coating material rack has moved to through the position detection sensors.

[0003] After the rotary frame assembly completes the loading of the glass to be coated, the coating rack moves the glass to the front transfer platform. The front transfer platform transports the coating rack to the front of the coating chamber assembly. Then, the coating rack carries the glass to be coated from the front of the coating chamber assembly into the interior of the coating chamber assembly and completes the coating process. Next, the coating rack moves the coated glass from the rear of the coating chamber assembly to the rear transfer platform. The rear transfer platform then transports the coating rack to the rear of the rotary frame assembly. After that, the coating rack carries the coated glass to the unloading position set inside the rotary frame assembly. At this point, the coated glass can be unloaded from the coating rack. Then, the coating rack moves along the rotary frame assembly to the loading position, where the glass to be coated can be installed. The coating rack then moves the glass to be coated along the rotary frame assembly to the front transfer platform for the next coating process, and this cycle continues.

[0004] While the aforementioned continuous vacuum coating production line can meet users' continuous glass coating needs, when the coating rack carries the coated glass back from the coating chamber assembly to the rotary frame assembly, the temperature difference between the rotary frame assembly and the coating chamber assembly is significant. As a result, some of the coated glass on the coating rack breaks and falls due to the large temperature difference. The falling glass may block the position detection sensor at the bottom of the rotary frame, causing the control system to mistakenly believe that the coating rack is always present on the rotary frame. This requires workers to stop the machine for inspection and maintenance, making it impossible for the continuous vacuum coating production line to operate normally and reducing coating efficiency. Summary of the Invention

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a coating material rack position identification structure for a coating production line, which can effectively prevent the position detection device of the rotary frame from being obstructed by broken and falling coating materials, enabling the control system to more accurately identify the position of the coating material rack within the rotary frame assembly.

[0006] A coating material rack position identification structure for a coating production line according to an embodiment of the present invention includes a coating chamber assembly, a material rack rotary conveyor line, and a control system. The coating chamber assembly includes at least three sequentially connected chambers, which are arranged sequentially in a front-to-back direction as a front buffer chamber, a coating chamber, and a rear buffer chamber. The material rack rotary conveyor line is disposed on one side of the coating chamber assembly. The material rack rotary conveyor line includes a front transfer platform, a rotary frame assembly, and a rear transfer platform arranged sequentially in a front-to-back direction. The rotary frame assembly includes multiple rotary frames connected sequentially in a front-to-back direction. Each rotary frame has a first conveying component for conveying the coating material rack at its lower part. One end of the front transfer platform is... At the front of the rotary frame assembly, the other end of the front transfer platform is located at the front of the coating chamber assembly. The upper surface of the front transfer platform is provided with a second conveying component for conveying the coating material rack from the rotary frame assembly to the coating chamber assembly. One end of the rear transfer platform is located at the rear of the coating chamber assembly, and the other end of the rear transfer platform is located at the rear of the rotary frame assembly. The upper surface of the rear transfer platform is provided with a third conveying component for conveying the coating material rack from the rear of the coating chamber assembly to the rear of the rotary frame assembly. Each rotary frame has at least one position detection device for detecting the position of the coating material rack on its upper part, and all of the position detection devices are electrically connected to the control system.

[0007] A coating material rack position identification structure for a coating production line according to an embodiment of the present invention has at least the following beneficial effects:

[0008] This utility model discloses a coating material rack position identification structure for a coating production line. At least one position detection device is installed on the upper part of the rotary frame to detect the position of the coating material rack. All position detection devices are electrically connected to the control system. Therefore, when the coated material returns from the coating chamber assembly to the rotary frame assembly, even if some material breaks and falls due to a large temperature difference, the falling material will not obstruct the position detection devices on the upper part of the rotary frame. Thus, the control system can accurately detect and identify the position of the coating material rack through the position detection devices, avoiding the situation where broken material obstructs the position detection devices and causes the control system to misjudge the position of the coating material rack. This reduces erroneous shutdowns of the coating production line and improves its production efficiency.

[0009] In some embodiments of this utility model, two position detection devices are provided on the upper part of each rotary frame. The two position detection devices are arranged at intervals along the front-back direction. On the same rotary frame, the distance between the two position detection devices is less than or equal to the length of the coating material rack.

[0010] In some embodiments of this utility model, the distance between two adjacent position detection devices is less than the length of the coating material rack.

[0011] In some embodiments of this utility model, the upper part of each rotary frame is provided with the same number of detection mounting components as the position detection devices. One end of the detection mounting component is fixedly connected to the rotary frame, and the other end of the detection mounting component is provided with a mounting hole, and the position detection device is installed in the mounting hole accordingly.

[0012] In some embodiments of this utility model, the position detection device includes an infrared emitting sensor and an infrared receiving sensor; the detection mounting assembly includes a first detection mounting base and a second detection mounting base, the first detection mounting base and the second detection mounting base being installed one-to-one on the upper left and upper right sides of the rotary frame, respectively, both the first detection mounting base and the second detection mounting base having mounting holes, the infrared emitting sensor being installed in the mounting hole of the first detection mounting base, and the infrared receiving sensor being installed in the mounting hole of the second detection mounting base.

[0013] In some embodiments of this utility model, the first conveying assembly includes a plurality of first conveying rollers and a first drive motor. All the first conveying rollers are movably mounted at even intervals along the front-back direction on the lower part of the rotary frame. A transmission belt is sleeved between two adjacent first conveying rollers. The first drive motor is fixedly mounted on the lower part of the rotary frame. The output shaft of the first drive motor is provided with a transmission belt that is connected to one of the first conveying rollers. The first drive motor is capable of driving all the first conveying rollers to rotate.

[0014] In some embodiments of this utility model, a front moving frame is fixedly installed on the second conveying assembly. The second conveying assembly can drive the front moving frame to move to the front side of the rotary frame assembly and connect the front moving frame with the rotary frame assembly. The coating material rack inside the rotary frame assembly can be moved from the rotary frame assembly to the front moving frame. Alternatively, the second conveying assembly can drive the front moving frame to move to the front side of the coating chamber assembly and connect the front moving frame with the coating chamber assembly. The coating material rack inside the front moving frame can be moved from the front moving frame to the coating chamber assembly.

[0015] In some embodiments of this utility model, the lower part of the front moving frame is provided with a front conveying assembly for conveying the coating material rack.

[0016] In some embodiments of this utility model, a rear movable frame is fixedly installed on the third conveying assembly. The third conveying assembly can drive the front movable frame to move to the rear side of the coating chamber assembly and connect the rear movable frame with the coating chamber assembly, so that the coating material rack inside the coating chamber assembly can be moved from the coating chamber assembly to the rear movable frame; or the third conveying assembly can drive the rear movable frame to move to the rear side of the rotary frame assembly and connect the rear movable frame with the rotary frame assembly, so that the coating material rack inside the rear movable frame can be moved from the rear movable frame to the rotary frame assembly.

[0017] In some embodiments of this utility model, the lower part of the rear movable frame is provided with a rear conveying assembly for conveying the coating material rack. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a part drawing of a rotary frame in a coating material rack position identification structure of a coating production line according to an embodiment of the present utility model.

[0020] Figure 2 for Figure 1 The front view of the slewing frame is shown;

[0021] Figure 3 This is a front view of two adjacent rotary frames in a coating material rack position identification structure of a coating production line according to an embodiment of the present utility model;

[0022] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 5This is a simplified structural diagram of a coating material rack position identification structure in a coating production line according to an embodiment of the present invention.

[0024] Figure 6 for Figure 1 Enlarged diagram of point B in the middle. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] Reference Figures 1 to 6 and mainly refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 According to certain embodiments of the present invention, a coating material rack position identification structure for a coating production line is sometimes simply referred to as a "coating material rack position identification structure". The coating material rack position identification structure for a coating production line includes a coating chamber assembly 100, a material rack rotary conveyor line, and a control system. In this embodiment, the coating chamber assembly 100 includes at least three sequentially connected chambers, arranged sequentially from front to back as a front buffer chamber 110, a coating chamber 120, and a rear buffer chamber 130. A material rack rotary conveyor line is located on one side of the coating chamber assembly 100. In this embodiment, the material rack rotary conveyor line includes a front transfer platform 210, a rotary frame assembly 220, and a rear transfer platform 230 arranged sequentially from front to back. The rotary frame assembly 220 includes multiple rotary frames 240 sequentially connected from front to back. Each rotary frame 240 has a first conveying component at its lower part for conveying the coating material rack 500. One end of the front transfer platform 210 is located in front of the rotary frame assembly 220. The other end is located at the front of the coating chamber assembly 100. The upper surface of the front transfer platform 210 is provided with a second conveying component 211 for conveying the coating material rack 500 from the rotary frame assembly 220 to the coating chamber assembly 100. One end of the rear transfer platform 230 is located at the rear of the coating chamber assembly 100, and the other end of the rear transfer platform 230 is located at the rear of the rotary frame assembly 220. The upper surface of the rear transfer platform 230 is provided with a third conveying component 231 for conveying the coating material rack 500 from the rear of the coating chamber assembly 100 to the rear of the rotary frame assembly 220. Each rotary frame 240 is provided with at least one position detection device 300 for detecting the position of the coating material rack 500. All position detection devices 300 are electrically connected to the control system.

[0031] The coating material rack position recognition structure of this embodiment has at least one position detection device 300 for detecting the coating material rack 500 on the upper part of the rotary frame. All position detection devices 300 are electrically connected to the control system. Therefore, when the coating material rack 500 carries the coated material back from the coating chamber assembly 100 to the rotary frame assembly 220, even if some material breaks and falls due to large temperature difference, the falling material will not block the position detection device 300 on the upper part of the rotary frame 240. Therefore, the control system can accurately detect and identify the position of the coating material rack 500 through the position detection device 300, avoiding the broken material from blocking the position detection device 300 and causing the control system to misjudge the position of the coating material rack 500, thereby reducing the erroneous downtime of the coating production line and improving the production efficiency of the coating production line.

[0032] Refer to the reference. Figure 2 and Figure 5To enable the control system to better identify the location of the coating material holder 500, in some embodiments of this invention, two position detection devices 300 are provided on the upper part of each rotary frame 240. The two position detection devices 300 are arranged at intervals along the front-back direction, and the distance between the two position detection devices 300 on the same rotary frame 240 is less than or equal to the length of the coating material holder 500. By adopting the above structure, position detection devices 300 are provided at two different positions on the upper part of each rotary frame 240. Therefore, the control system can detect the location of the coating material holder 500 by cooperating with all position detection devices 300, thereby improving the detection accuracy. After the coating production line is shut down and power is restored, it can avoid the situation where the coating material holder 500 is offset within a certain rotary frame 240 and cannot be detected by one of the position detection devices 300, further improving the ability of the control system to identify the location of the coating material holder 500.

[0033] Reference Figure 3 and Figure 5 When the coating production line is shut down and power is restored, to prevent the coating material rack 500 from being undetectable by the position detection device 300 due to being located between two adjacent rotary frames 240, in some embodiments of this invention, the distance between two adjacent position detection devices 300 is less than the length of the coating material rack 500. By adopting the above structure, when the coating material rack 500 is located between two adjacent rotary frames 240, it can be detected by the position detection device 300 of one of the rotary frames 240, or it can be detected by the position detection devices 300 of both rotary frames 240. This greatly reduces the probability of the coating material rack 500 being missed during detection and further improves the recognition performance of the coating material rack position recognition structure of this invention.

[0034] Reference Figure 1 , Figure 2 and Figure 4 To facilitate the installation of the position detection device 300 on the rotary frame 240, in some embodiments of this invention, each rotary frame 240 has the same number of detection mounting components 310 as the position detection devices 300 on its upper part. One end of each detection mounting component 310 is fixedly connected to the rotary frame 240, and the other end of each component has a mounting hole 320. The position detection device 300 is correspondingly installed in the mounting hole 320. With this structure, it is only necessary to install the position detection device 300 in the mounting hole 320, making operation simple and convenient.

[0035] To enable the position detection device 300 to better detect the coating material rack 500, in some embodiments of this utility model, the position detection device 300 is a through-beam photoelectric sensor. Specifically, the position detection device 300 includes an infrared emitting sensor and an infrared receiving sensor. The detection mounting assembly 310 includes a first detection mounting base 311 and a second detection mounting base 312. The first detection mounting base 311 and the second detection mounting base 312 are installed on the upper left and upper right sides of the rotary frame 240 respectively. Both the first detection mounting base 311 and the second detection mounting base 312 have mounting holes 320. The infrared emitting sensor is installed in the mounting hole 320 of the first detection mounting base 311, and the infrared receiving sensor is installed in the mounting hole 320 of the second detection mounting base 312. By employing the above structure, when the coating material holder 500 moves along the interior of the rotating frame 240, it moves between the infrared emitting sensor and the infrared receiving sensor, blocking the infrared light emitted by the infrared emitting sensor. At this point, the control system can determine and identify the location of the coating material holder 500. Since the infrared emitting sensor and the infrared receiving sensor are known technologies in the art, they will not be described in detail here.

[0036] It is understandable that, in addition to the structure consisting of an infrared emitting sensor and an infrared receiving sensor, the position detection device 300 can also adopt other structures, such as a contact sensor fixedly installed on the upper side of one side of the rotary frame 240. When the coating material rack 500 moves along the inside of the rotary frame 240 and touches the contact sensor, the control system can determine and identify the position of the coating material rack 500.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6To enable the first conveying assembly to better drive the coating material holder 500 to move along the interior of the rotary frame 240, in some embodiments of this invention, the first conveying assembly includes multiple first conveying rollers 410 and a first drive motor 411. All the first conveying rollers 410 are evenly spaced and movably mounted on the lower part of the rotary frame 240 along the front-back direction. A transmission belt is sleeved between adjacent first conveying rollers 410. The first drive motor 411 is fixedly mounted on the lower part of the rotary frame 240, and the output shaft of the first drive motor 411 is provided with a transmission belt that is connected to one of the first conveying rollers 410. The first drive motor 411 can drive all the first conveying rollers 410 to rotate. With the above structure, when the coating material holder 500 enters the rotary frame 240 and rests on the upper part of the first conveying rollers 410, the first drive motor 411 drives all the first conveying rollers 410 to rotate. All the first conveying rollers 410 can then cooperate to drive the coating material holder 500 to move the material along the interior of the rotary frame 240, resulting in a simple structure.

[0038] Reference Figure 5In order to enable the front transfer platform 210 to better transport the coating material rack 500 from the front side of the rotary frame assembly 220 to the front side of the coating chamber group 100, in some embodiments of this utility model, a front moving frame 250 is fixedly installed on the second conveying assembly 211. The second conveying assembly 211 can drive the front moving frame 250 to move to the front side of the rotary frame assembly 220 and connect the front moving frame 250 with the rotary frame assembly 220, so that the coating material rack 500 inside the rotary frame assembly 220 can be moved from the rotary frame assembly 220 to the front moving frame 250; or the second conveying assembly 211 can drive the front moving frame 250 to move to the front side of the coating chamber group 100 and connect the front moving frame 250 with the coating chamber group 100, so that the coating material rack 500 inside the front moving frame 250 can be moved from the front moving frame 250 to the coating chamber group 100. In this embodiment, the structure of the front moving frame 250 is the same as that of the rotary frame 240. The front moving frame 250 includes a hollow frame, and a front conveying assembly for conveying the coating material rack 500 is provided at the lower part of the front moving frame 250. The front conveying assembly includes multiple front conveying rollers for conveying the coating material rack 500 installed at the lower part of the frame. A front drive motor for driving the multiple front conveying rollers to rotate is also fixedly installed at the lower part of the front moving frame 250. The second conveying assembly 211 is a synchronous conveyor belt fixedly installed on the upper surface of the front transfer platform 210. By adopting the above structure, when the second conveying component 211 of the front transfer platform 210 drives the front moving frame 250 to move to the front side of the rotary frame assembly 220 and connects the front moving frame 250 with the rotary frame assembly 220, the coating material rack 500 inside the rotary frame assembly 220 moves from the rotary frame assembly 220 to the front moving frame 250. Then, the second conveying component 211 drives the front moving frame 250 to move the coating material rack 500 to the front side of the coating chamber assembly 100 and connects the front moving frame 250 with the coating chamber assembly 100. Then, the coating material rack 500 inside the front moving frame 250 moves from the front moving frame 250 to the coating chamber assembly 100, thereby completing the transfer of the coating material rack 500 from the rotary frame assembly 220 to the coating chamber assembly 100.

[0039] In some embodiments of this utility model, a rear moving frame 260 is fixedly installed on the third conveying assembly 231. The third conveying assembly 231 can drive the rear moving frame 260 to move to the rear side of the coating chamber assembly 100 and connect the rear moving frame 260 with the coating chamber assembly 100. The coating material rack 500 inside the coating chamber assembly 100 can be moved from the coating chamber assembly 100 to the rear moving frame 260. Alternatively, the third conveying assembly 231 can drive the rear moving frame 260 to move to the rear side of the rotary frame assembly 220 and connect the rear moving frame 260 with the rotary frame assembly 220. The coating material rack 500 inside the rear moving frame 260 can be moved from the rear moving frame 260 to the rotary frame assembly 220. In this embodiment, the structure of the rear moving frame 260 is the same as that of the front moving frame 250. The rear moving frame 260 includes a hollow frame. A rear conveying assembly for conveying the coating material rack 500 is provided at the lower part of the rear moving frame 260. The rear conveying assembly includes multiple rear conveying rollers for conveying the coating material rack 500, which are installed at the lower part of the frame. A rear drive motor capable of driving all the rear conveying rollers to rotate is also provided at the lower part of the frame. The third conveying assembly 231 is a synchronous conveyor belt fixedly installed on the upper surface of the rear transfer platform 230. By adopting the above structure, the third conveying component 231 of the rear transfer platform 230 drives the rear moving frame 260 to move to the rear side of the coating chamber assembly 100 and connects the rear moving frame 260 with the coating chamber assembly 100. The coating material rack 500 inside the coating chamber assembly 100 can be moved from the coating chamber assembly 100 to the rear moving frame 260. Then, the third conveying component 231 drives the rear moving frame 260 to move the coating material rack 500 to the rear side of the rotary frame assembly 220 and connects the rear moving frame 260 with the rotary frame assembly 220. At this time, the coating material rack 500 inside the rear moving frame 260 is moved from the rear moving frame 260 to the rotary frame assembly 220, thereby completing the transfer of the coating material rack 500 from the coating chamber assembly 100 to the rotary frame assembly 220.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A coating material rack position identification structure for a coating production line, characterized in that, include: The coating chamber group (100) includes at least three sequentially connected chambers, which are arranged sequentially in the front-to-back direction as a front buffer chamber (110), a coating chamber (120), and a rear buffer chamber (130). A material rack rotary conveyor line is located on one side of the coating chamber assembly (100). The material rack rotary conveyor line includes a front transfer platform (210), a rotary frame assembly (220), and a rear transfer platform (230) arranged sequentially along the front-back direction. The rotary frame assembly (220) includes multiple rotary frames (240) connected sequentially along the front-back direction. Each rotary frame (240) has a first conveying component for conveying the coating material rack at its lower part. One end of the front transfer platform (210) is located in front of the rotary frame assembly (220), and the other end of the front transfer platform (210) is located in the coating chamber assembly. (100) On the front side, the upper surface of the front transfer platform (210) is provided with a second conveying component (211) for conveying the coating material rack from the rotary frame assembly (220) to the coating chamber group (100). One end of the rear transfer platform (230) is located on the rear side of the coating chamber group (100), and the other end of the rear transfer platform (230) is located on the rear side of the rotary frame assembly (220). The upper surface of the rear transfer platform (230) is provided with a third conveying component (231) for conveying the coating material rack from the rear side of the coating chamber group (100) to the rear side of the rotary frame assembly (220). Control system; Each of the rotating frames (240) is provided with at least one position detection device (300) for detecting the position of the coating material rack on its upper part, and all of the position detection devices (300) are electrically connected to the control system.

2. The coating material rack position identification structure of a coating production line according to claim 1, characterized in that, Each of the rotary frames (240) is provided with two position detection devices (300) on its upper part, and the two position detection devices (300) are arranged at intervals along the front-back direction. Within the same rotary frame (240), the distance between the two position detection devices (300) is less than or equal to the length of the coating material holder.

3. The coating material rack position identification structure of a coating production line according to claim 2, characterized in that, Between two adjacent rotary frames (240), the distance between two adjacent position detection devices (300) is less than the length of the coating material rack.

4. The coating material rack position identification structure of a coating production line according to claim 1 or 2, characterized in that, Each of the rotary frames (240) has a detection mounting assembly (310) on its upper part, the same number as the position detection device (300). One end of the detection mounting component (310) is fixedly connected to the rotary frame (240), and the other end of the detection mounting component (310) is provided with a mounting hole (320), and the position detection device (300) is installed in the mounting hole (320).

5. The coating material rack position identification structure of a coating production line according to claim 4, characterized in that, The position detection device (300) includes an infrared emitting sensor and an infrared receiving sensor; The detection mounting assembly (310) includes a first detection mounting base (311) and a second detection mounting base (312). The first detection mounting base (311) and the second detection mounting base (312) are installed on the upper left and upper right sides of the rotary frame (240) respectively. The first detection mounting base (311) and the second detection mounting base (312) are both provided with mounting holes (320). The infrared emitting sensor is installed in the mounting hole (320) of the first detection mounting base (311), and the infrared receiving sensor is installed in the mounting hole (320) of the second detection mounting base (312).

6. The coating material rack position identification structure of a coating production line according to claim 1, characterized in that, The first conveying assembly includes a plurality of first conveying rollers (410) and a first drive motor (411). All the first conveying rollers (410) are evenly spaced and movably mounted on the lower part of the rotary frame (240) along the front-back direction. A transmission belt is sleeved between two adjacent first conveying rollers (410). The first drive motor (411) is fixedly mounted on the lower part of the rotary frame (240). The output shaft of the first drive motor (411) is provided with a transmission belt that is connected to one of the first conveying rollers (410). The first drive motor (411) can drive all the first conveying rollers (410) to rotate.

7. The coating material rack position identification structure of a coating production line according to claim 1, characterized in that, A front moving frame (250) is fixedly installed on the second conveying assembly (211). The second conveying assembly (211) can drive the front moving frame (250) to move to the front side of the rotary frame assembly (220) and make the front moving frame (250) communicate with the rotary frame assembly (220). The coating material rack inside the rotary frame assembly (220) can be moved from the rotary frame assembly (220) to the front moving frame (250). Alternatively, the second conveying assembly (211) can drive the front moving frame (250) to move to the front side of the coating chamber assembly (100) and make the front moving frame (250) communicate with the coating chamber assembly (100), and the coating material rack inside the front moving frame (250) can be moved from the front moving frame (250) to the coating chamber assembly (100).

8. The coating material rack position identification structure of a coating production line according to claim 7, characterized in that, The lower part of the front moving frame (250) is provided with a front conveying assembly for conveying the coating material rack.

9. The coating material rack position identification structure of a coating production line according to claim 1, characterized in that, A rear moving frame (260) is fixedly installed on the third conveying assembly (231). The third conveying assembly (231) can drive the rear moving frame (260) to move to the rear side of the coating chamber assembly (100) and make the rear moving frame (260) communicate with the coating chamber assembly (100). The coating material rack inside the coating chamber assembly (100) can be moved from the coating chamber assembly (100) to the rear moving frame (260). Alternatively, the third conveying component (231) can drive the rear moving frame (260) to move to the rear side of the rotary frame assembly (220) and connect the rear moving frame (260) with the rotary frame assembly (220), and the coating material rack inside the rear moving frame (260) can be moved from the rear moving frame (260) to the rotary frame assembly (220).

10. The coating material rack position identification structure of a coating production line according to claim 9, characterized in that, The lower part of the rear moving frame (260) is provided with a rear conveying assembly for conveying the coating material rack.

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