A display screen circuit board coating apparatus

Abstract

The utility model discloses a kind of coating devices of display screen circuit board, including chassis, the chassis is by horizontal part and the vertical part being set along the horizontal part length, the number of the vertical part is two and interval setting;The opposite side of two vertical parts is provided with feeding mechanism, and frame is placed between two the feeding mechanism, the frame is composed of base and placement plate, the number of the base is two and is placed respectively on two the feeding mechanism, and two the base is connected by the placement plate;Spraying mechanism is set in the chassis, this kind of coating device of display screen circuit board, the setting of shielding part solves the problem of artificial taking and placing frame, and frame suspension is realized by the cooperation of linear module one, lifting plate, insertion part and frame insertion channel, the detachable connection of combination special-shaped sliding block and special-shaped channel is realized, frame is automatically stacked, reduce labor cost, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of material coating technology, and in particular to a coating device for a display circuit board. Background Technology

[0002] A display screen is a device that converts electrical signals into visual images to display information such as text and images. The display circuit board is the core component inside the display screen, which integrates various electronic components and plays a role in controlling display signal processing and power management. It is the key to the normal operation of the display screen. In the production and processing of display circuit boards, in order to improve their performance in terms of moisture resistance, corrosion resistance, and dust resistance, functional coating materials are usually sprayed onto their surface.

[0003] Currently, existing coating equipment typically uses a conveyor mechanism to transport frames containing circuit boards to the coating station during the spraying process. After coating, the frames are removed from the station. However, due to the limited overall length of the coating mechanism, the coated frames and circuit boards need to be removed from the conveyor and stacked together for unified transfer to the next process. In existing technologies, this picking and stacking process largely relies on manual operation. Operators need to remove the frames one by one from the conveyor and then stack them neatly, which not only increases labor costs but also has low efficiency, making it difficult to meet the needs of large-scale mass production. Furthermore, during manual picking and stacking, the lack of standardized operating procedures can easily lead to problems such as frame misalignment and uneven stacking, potentially scratching or damaging the coating on the circuit board surface and affecting product quality.

[0004] Therefore, a coating device for display circuit boards is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a coating device for display circuit boards, which solves the problems of increased labor costs and low operating efficiency caused by manual handling of stacked frames and circuit boards, which cannot meet the needs of large-scale mass production. In addition, manual operation is difficult to standardize, which can easily lead to frame misplacement, uneven stacking, and scratches and damage to the surface coating of the circuit board, thus affecting product quality.

[0006] To achieve this objective, the present invention adopts the following technical solution: A coating apparatus for a display circuit board includes a base frame, the base frame having a horizontal section and a vertical section arranged along the length of the horizontal section, the vertical section having two sections spaced apart; a feeding mechanism is provided on opposite sides of the two vertical sections, a frame is placed between the two feeding mechanisms, the frame having two bases and a placement plate, the bases having two bases and being placed on the two feeding mechanisms respectively, the two bases being connected by the placement plate; A spraying mechanism is provided on the base frame, and the spraying mechanism is used to spray paint toward the display circuit board on the placement plate; A shielding part is provided on one side of the base frame along the length direction. The direction of the shielding part perpendicular to the horizontal part is the length direction. A linear module one is provided along the length direction on the side of the shielding part near the base frame. The slide of the linear module one is provided with a lifting plate. The lifting plate is provided with an insertion part extending in the direction near the base frame. The frame is provided with an insertion channel adapted to the insertion part on the side opposite to the shielding part. An irregularly shaped slider is disposed on the side of the base away from the feeding mechanism. An irregularly shaped channel is provided on the side of the base close to the feeding mechanism. The irregularly shaped sliders and the irregularly shaped channel on two adjacent bases can be connected in a detachable manner.

[0007] Optionally, the feeding mechanism includes a drive shaft, a sprocket, a chain, and a motor; The number of drive shafts is two and they are rotatably connected to the vertical part. One end of the drive shaft is located between the two vertical parts, and the other end of the drive shaft extends to the other side of the connected vertical part. The motor is disposed in the vertical part, and the motor shaft of the motor is coaxially connected to the end of the drive shaft that extends through the vertical part. The sprocket is fixedly sleeved on the drive shaft, and the two sprockets are connected by the chain drive.

[0008] Optionally, the spraying mechanism includes a bracket, a second linear module, a third linear module, a fourth linear module, a spray gun, a slide rail, and a slider; the bracket has two components, each located on one side of the two vertical sections away from the horizontal section; the second linear module and the slide rail are both installed on the two brackets on the side away from the vertical section along the transmission direction of the chain; the slide rail is slidably connected to the slider; the third linear module is installed between the second linear module and the slider, and the length direction of the third linear module is perpendicular to the transmission direction of the chain; the third linear module includes a fourth linear module, the length direction of which is perpendicular to the horizontal section; and the spray gun is located on the fourth linear module.

[0009] Optionally, pusher plates are installed on opposite sides of the two opposite outer chain plates of the chain. One end of the pusher plate extends away from the interior of the chain, and a connecting block is installed between the two pusher plates, the connecting block being away from the chain.

[0010] Optionally, guide rails are provided on opposite sides of the two vertical sections along the conveying direction of the sprocket, and guide channels parallel to the guide rails are provided on opposite sides of the two bases. The side of the guide rail away from the vertical section extends into the guide channel on the same side as the guide rail and is slidably connected.

[0011] Optionally, the shielding part consists of a vertical plate and a baffle, the vertical plate is spaced apart from the base frame, and the baffle is fixedly connected between the vertical plate and the vertical part of the base frame; the linear module is installed on the vertical plate; the baffle is equipped with a hot air blower, and ultraviolet lamps are provided on the inner walls of both the vertical plate and the baffle.

[0012] Optionally, the rectangular array on the side of the placement plate away from the feeding mechanism is provided with four limiting blocks, and the area enclosed by the four limiting blocks is adapted to the size of the display circuit board.

[0013] Optionally, a photoelectric sensor is provided on the side of the horizontal section facing the frame, and a controller is provided on the baffle.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The feeding mechanism adopts chain drive, and together with the pusher plate and connecting block, it prevents the frame from sliding. Combined with the guiding effect of the guide rail and guide channel, it realizes the stable and directional transportation of the frame and circuit board. The spraying mechanism drives the spray gun to move precisely along the preset trajectory through the coordinated movement of the linear modules in the X, Y and Z axes. Together with the external paint supply system, it evenly atomizes and sprays functional coating materials such as conformal coating, realizing all-round and high-precision protection of the circuit board and ensuring the coating quality.

[0015] 2. The shielding part solves the problem of manual frame handling. The frame is suspended through the cooperation of linear module 1, lifting plate, insertion part and frame insertion channel. Combined with the detachable connection of irregular slider and irregular channel, the frame is automatically stacked, reducing labor costs and improving processing efficiency.

[0016] 3. The hot air blower and ultraviolet lamp on the shielding part can dry the sprayed circuit board with hot air and cure it with ultraviolet light, thus accelerating the curing speed of the coating. Attached Figure Description

[0017] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the feeding mechanism of this utility model; Figure 3This is a structural diagram of the shielding part, linear module one, lifting plate, insertion part, hot air blower, and ultraviolet lamp of this utility model; Figure 4 This is an exploded view of the base frame, frame, and guide rails of this utility model.

[0019] In the attached diagram: 1. Base frame; 11. Horizontal section; 12. Vertical section; 2. Feeding mechanism; 21. Drive shaft; 22. Sprocket; 23. Chain; 24. Motor; 3. Frame; 31. Base; 32. Placement plate; 4. Spraying mechanism; 41. Bracket; 42. Linear module two; 43. Linear module three; 44. Linear module four; 45. Spray gun; 46. Slide rail; 47. Slider; 5. Obstruction section; 51. Vertical plate; 52. Baffle; 61. Linear module one; 62. Lifting plate; 63. Insertion section; 64. Insertion channel; 71. Irregularly shaped slider; 72. Irregularly shaped channel; 81. Hot air blower; 82. Ultraviolet lamp; 91. Photoelectric sensor; 92. Controller; 10. Limit block; 131. Guide channel; 132. Guide rail; 231. Push plate; 232. Connecting block. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below, examples of which 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. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] In this embodiment, by Figure 1-4 A coating apparatus for a display circuit board is provided, comprising a base frame 1, the base frame 1 having a horizontal portion 11 and two vertical portions 12 arranged along the length of the horizontal portion 11, the number of vertical portions 12 being two and spaced apart, thereby forming a frame with a U-shaped structure, providing a support position for the structure to be installed subsequently.

[0025] This equipment is used for spray coating of display circuit boards. To improve processing efficiency by transporting the display circuit boards, feeding mechanisms 2 are provided on opposite sides of the two vertical sections 12. A frame 3 is placed between the two feeding mechanisms 2, allowing the feeding mechanisms 2 to transport the frame 3. Multiple frames 3 can be used simultaneously and transported together by the feeding mechanisms 2. Specifically, the frame 3 consists of a base 31 and a placement plate 32. There are two bases 31, each placed on one of the two feeding mechanisms 2, and the two bases 31 are connected by the placement plate 32. The bases 31 are the contact points with the feeding mechanisms 2, while the placement plate 32 is where the display circuit boards are placed.

[0026] Specifically, refer to Figure 1 and Figure 2 As shown, the feeding mechanism 2 includes a drive shaft 21, a sprocket 22, a chain 23, and a motor 24. Two drive shafts 21 are rotatably connected to the vertical section 12. One end of each drive shaft 21 is located between the two vertical sections 12, and the other end extends through to the other side of the connected vertical section 12. The motor 24 is located in the vertical section 12, and its motor shaft is coaxially connected to the end of the drive shaft 21 that extends through the vertical section 12. The sprocket 22 is fixedly sleeved on the drive shaft 21, and the two sprockets 22 are connected by the chain 23. In use, the motor 24 drives one of the drive shafts 21 and the sprocket 22 on that drive shaft 21 to rotate. Since both sprockets 22 are engaged with the chain 23, the chain 23 drives the other sprocket 22 and the other drive shaft 21 to rotate. During the operation of the chain 23, the frame 3 placed on the chain 23 and the display circuit board on the frame 3 are directionally conveyed.

[0027] In other embodiments, since this equipment is used for manufacturing, noise levels are taken into consideration. Therefore, the feeding mechanism 2 can be a synchronous belt drive feeding mechanism or a belt drive feeding mechanism. The noise levels of synchronous belt drives and belt drives are significantly lower than those of chain drives 23, making them suitable for use in production workshops where noise levels are strictly limited. However, in this embodiment, considering that the equipment needs to transport heavy frames 3 or multiple circuit boards simultaneously, high load capacity and durability are required. The chain 23, composed of rigid links connected by pins, can withstand greater tensile and impact forces. Chain drives 23 are less prone to deformation or breakage and have a longer service life; therefore, a feeding mechanism 2 with a chain 23 is preferred.

[0028] Based on the above, the feeding mechanism 2 is used to transport the frame 3 and the display circuit board placed on the frame 3. After being transported, the frame 3 and the display circuit board will stop at a certain position, which is the position for processing the display circuit board, i.e., the spraying station.

[0029] In addition, refer to Figure 1 As shown above, the processing of the display circuit board mentioned above refers to spraying. The spraying material is a functional coating material, and the most commonly used is conformal coating, which mainly achieves moisture-proof, corrosion-proof, and dust-proof (three-proof), while also having insulation and anti-aging functions. Based on this, the spraying mechanism 4 is set on the base frame 1. The spraying mechanism 4 includes a bracket 41, a second linear module 42, a third linear module 43, a fourth linear module 44, a spray gun 45, a slide rail 46, and a slider 47. Two brackets 41 are provided, each located on one side of the two vertical sections 12 away from the horizontal section 11. The second linear module 42 and the slide rail 46 are both installed along the transmission direction of the chain 23 on the sides of the two brackets 41 away from the vertical section 12. The slide rail 46 is slidably connected to the slider 47. The third linear module 43 is installed between the second linear module 42 and the slider 47, and the length direction of the third linear module 43 is perpendicular to the transmission direction of the chain 23. The fourth linear module 44 is provided within the third linear module 43, and the length direction of the fourth linear module 44 is perpendicular to the horizontal section 11. Based on the combination of the second linear module 42, the third linear module 43, and the fourth linear module 44, refer to... Figure 1 As shown, an adjustment structure is formed in three directions: x-axis, y-axis, and z-axis. The spray gun 45 is positioned on the linear module 44. Therefore, the adjustment structure can be based on... Figure 1 The positions of the spray gun in the three directions shown are 45x, y, and z, which correspond to the length, width, and height, respectively, to meet the spraying requirements of the display circuit board at different locations.

[0030] The spray gun 45 is connected to an external paint supply system, which consists of a paint container for storing functional coating materials, a delivery pipeline, and a pumping device. The paint supply system can deliver the functional coating materials to the spray gun 45 and finally spray them from the spray gun 45 onto the display circuit board below the spraying mechanism 4.

[0031] Reference Figure 1 and Figure 2As shown above, when the frame 3 is conveyed to the spraying station by the feeding mechanism 2, the entire structure on the linear module 2 42 is first moved along the transmission direction (X-axis) of the chain 23 by the linear module 2 42, thereby positioning the spray gun 45 at the starting position in the length direction of the circuit board. During this process, the linear module 3 43 drives the slider 47 to move along the slide rail 46 to provide guidance and support. Then, the linear module 3 43 moves laterally along the transmission direction perpendicular to the chain 23 (Y-axis) so that the spray gun 45 is aligned with the spraying starting point in the width direction of the circuit board. At the same time, the linear module 44 adjusts the vertical height (Z-axis) according to the thickness of the circuit board and the spraying distance requirements to ensure that the spray gun 45 maintains the optimal working distance from the surface of the circuit board. During the spraying process, three linear modules move in tandem, causing the spray gun 45 to move along a preset trajectory (such as a reciprocating, spiral, or grid-like path) on the circuit board surface. Simultaneously, the spray gun 45 atomizes and evenly sprays functional coating materials, such as conformal coating, onto the circuit board, achieving protective functions such as moisture resistance, corrosion resistance, and dust resistance. After one area is coated, the feeding mechanism 2 continues to transport the frame 3 to the next station. The entire process achieves comprehensive, high-precision spraying of the circuit board through multi-axis linkage.

[0032] After the spraying mechanism 4 processes a display circuit board on a frame 3, the frame 3 and the display circuit board are removed from the spraying station by the feeding mechanism 2. Since the overall length of the spraying mechanism 4 is limited, each board needs to be manually removed and stacked before being moved to the next processing step. Manually removing and stacking the frames 3 containing the circuit boards increases labor costs, reduces overall processing efficiency, and makes standardized operation difficult. Therefore, a shielding part 5 is located on one side of the base frame 1 along its length. The shielding part 5 is perpendicular to the horizontal part 11 along its length. A linear module 61 is arranged along its length on one side near the base frame 1. The slide of the linear module 61 is provided with a lifting plate 62. The lifting plate 62 is provided with an insertion part 63 extending towards the side near the base frame 1. The shape of the insertion part 63 is preferably cylindrical, and there are two insertion parts 63. The frame 3 is provided with an insertion channel 64 adapted to the insertion part 63 on the side opposite to the shielding part 5. The insertion channel 64 is also circular, and the number corresponds to the number of insertion parts 63. The insertion channel 64 can be a hole or a groove, and both achieve the same effect. Therefore, the insertion part 63 is inserted into the insertion channel 64 on the first frame 3, and the height of the lifting plate 62, the insertion part 63, and the frame 3 can be adjusted by the linear module 61. The irregularly shaped slider 71 is located on the side of the base 31 away from the feeding mechanism 2, and the irregularly shaped channel 72 is opened on the side of the base 31 close to the feeding mechanism 2. Here, the cross-sectional shape of the irregularly shaped slider 71 and the irregularly shaped channel 72 is preferably a dovetail structure. In other embodiments, other shapes are also possible, as long as they allow adjacent bases 31 to be connected together, such as a T-shaped structure. Therefore, the frame 3 suspended or indirectly suspended on the insertion part 63 is height-adjusted so that the irregularly shaped slider 71 on the lowest frame 3 corresponds to the irregularly shaped channel 72 on the frame 3 being conveyed by the feeding mechanism 2. Therefore, after conveying, the irregularly shaped slider 71 and the irregularly shaped channel 72 on two adjacent bases 31 can cooperate to form a detachable connection. The detachable connection here means that the adjacent bases 31 are connected by sliding and by shape limiting, and the connection can be released by sliding out.

[0033] In summary, the display circuit board coating device includes a U-shaped base frame 1, with a chain 23-driven feeding mechanism 2 on its vertical part 12 for conveying the base 31 and the frame 3 (for placing the circuit board) of the placement plate 32. The spraying mechanism 4 on the base frame 1 adjusts the position of the spray gun 45 through the linear modules of the X, Y, and Z axes, and works with the paint supply system to accurately spray functional coatings onto the circuit board. To solve the problem of manual handling, a shielding part 5 is provided on one side of the base frame 1. Its linear module 61, lifting plate 62 and insertion part 63 can cooperate with the insertion channel 64 of the frame 3 to hang the frame 3. The base 31 of the frame 3 is connected to the channel in an adjacent and detachable manner through the irregularly shaped slider 71, which facilitates stacking and conveying.

[0034] Reference Figure 2 As shown, since the frame 3 is conveyed by the chain 23 on the feeding mechanism 2, to prevent the frame 3 from sliding on the chain 23, in this embodiment, pusher plates 231 are installed on the opposite sides of the two opposite outer chain plates of the chain 23. One end of the pusher plate 231 extends away from the inside of the chain 23, and a connecting block 232 is installed between the two pusher plates 231, away from the chain 23. The pusher plates 231 are installed on the chain 23, and the two pusher plates 231 are connected together by the connecting block 232 to form an "I"-shaped pusher block. There are multiple pusher blocks, which are arranged around the chain 23, and the distance between two adjacent pusher blocks on the same chain 23 is sufficient for the placement of a frame 3, thereby achieving stable conveying.

[0035] Furthermore, considering that chain 23 is too long and lacks support in the middle, resulting in a curvature, the feeding mechanism 2 can be configured with multiple chains 23, meaning multiple chains 23 take turns conveying the frame 3. During the conveying of the frame 3, to ensure continuity and avoid obstructing the frame 3 from entering the next chain 23, the positions of the push blocks on each chain 23 are different. Specifically, when the current chain 23 and its push blocks convey the frame 3 forward, just as a portion of the frame 3 is transferred to the next chain 23, the next chain 23 begins to operate, cooperating with the previous chain 23 to complete the conveying of the frame 3. Only after the frame 3 has been completely transferred to the next chain 23 will the push blocks on the next chain 23 move to the rear of the frame 3, continuing to push the frame 3 forward.

[0036] In addition, refer to Figure 4 As shown above, after conveying, the irregularly shaped sliders 71 and irregularly shaped channels 72 on two adjacent bases 31 (the suspended base 31 and the conveyed base 31) can cooperate to form a detachable connection. In order to ensure that the irregularly shaped sliders 71 slide smoothly into the irregularly shaped channels 72, in this embodiment, guide rails 132 are provided on the opposite sides of the two vertical parts 12 along the conveying direction of the sprocket 22, and guide channels 131 parallel to the guide rails 132 are provided on the opposite side of the two bases 31. The guide channel 131 is a groove, and its two ends in the length direction are connected. The side of the guide rail 132 away from the vertical part 12 extends into the guide channel 131 on the same side as the guide rail 132 and slides in connection. Therefore, when the base 31 is placed into the chain 23 for conveying, the guide channel 131 on the base 31 can be aligned with the guide rail 132 on the vertical part 12, and the guide rail 132 can be slid into the guide channel 131 to guide the base 31. At this time, the bottom surface of the base 31 is in contact with the chain 23. Therefore, while the base 31 is being guided, it can also be conveyed by the chain 23.

[0037] Furthermore, referring to Figure 3 As shown, the shielding part 5 consists of a vertical plate 51 and a baffle 52. The vertical plate 51 is spaced apart from the base frame 1. The baffle 52 is fixedly connected between the vertical plate 51 and the vertical part 12 of the base frame 1 to form a stable support structure, providing an installation base for the linear module 61, the hot air blower 81 and the ultraviolet lamp 82. The linear module 61 is installed on the side of the vertical plate 51 facing the base frame 1 to ensure that the movement direction of its driving lifting plate 62 and the insertion part 63 is adapted to the conveying direction of the frame 3. The baffle 52 is equipped with a hot air blower 81. The air outlet of the hot air blower 81 faces the conveying area between the two vertical parts 12. The inner walls of the vertical plate 51 and the baffle 52 are equipped with ultraviolet lamps 82. The irradiation direction of the ultraviolet lamps 82 also points to the frame 3 in the conveying area. When the frame 3 and the printed circuit board of the display screen on it are stacked in the corresponding position of the shielding part 5. The hot air blower 81 is started, blowing hot air onto the surface of the circuit board to accelerate the initial drying of the conformal coating and other coating materials. At the same time, the ultraviolet lamp 82 is turned on to promote the curing reaction of the coating by ultraviolet irradiation, improve the drying and curing efficiency, and ensure that the coating reaches sufficient hardness before stacking to avoid scratching and peeling during subsequent stacking.

[0038] Among them, reference Figure 4 As shown, the placement plate 32 is used to place the display circuit board. In order to prevent the display circuit board from being mispositioned and affecting the subsequent spraying of functional coating materials, in this embodiment, four limiting blocks 10 are arranged in a rectangular array on the side of the placement plate 32 away from the feeding mechanism 2. The area enclosed by the four limiting blocks 10 is adapted to the size of the display circuit board. In this way, when the display circuit board is placed on the placement plate 32, the four limiting blocks 10 can block and limit it from all sides of the circuit board, ensuring that the position of each circuit board on the placement plate 32 is uniform.

[0039] Among them, reference Figure 1 As shown, a photoelectric sensor 91 is installed on the side of the horizontal section 11 facing the frame 3, and a controller 92 is installed on the baffle 52. The controller 92 is also electrically connected to the motor 24, linear module 1 61, linear module 2 42, linear module 3 43, linear module 44, spray gun 45, hot air blower 81, ultraviolet lamp 82, photoelectric sensor 91, and paint supply system. Among them, the photoelectric sensor 91 corresponds to the spraying station. When the frame 3 is conveyed to the spraying station, the photoelectric sensor 91 detects the frame 3 and sends feedback to the controller 92. The controller 92 sends a signal to pause the motor 24 of the feeding mechanism 2, so that the frame 3 is accurately positioned. After the spraying is completed, the controller 92 receives the feedback signal and restarts the motor 24. The feeding mechanism 2 continues to convey the frame 3, and the photoelectric sensor 91 is synchronously reset to wait for the next detection.

[0040] In the description of this specification, the references to terms such as "embodiment," "one implementation," "some implementations," "illustrative implementation," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described implementation or example is included in at least one implementation or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0041] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A coating apparatus for a display circuit board, characterized in that: include The base frame (1) consists of a horizontal part (11) and a vertical part (12) arranged along the length of the horizontal part (11). There are two vertical parts (12) arranged at intervals. Feeding mechanisms (2) are provided on opposite sides of the two vertical parts (12). A frame (3) is placed between the two feeding mechanisms (2). The frame (3) consists of a base (31) and a placement plate (32). There are two bases (31) and they are placed on the two feeding mechanisms (2) respectively. The two bases (31) are connected by the placement plate (32). A spraying mechanism (4) is provided on the base frame (1) and is used to spray paint toward the display circuit board on the placement plate (32); A shielding part (5) is provided on one side of the base frame (1) along the length direction. The shielding part (5) is perpendicular to the horizontal part (11) along the length direction. A linear module (61) is provided on the side of the shielding part (5) near the base frame (1) along the length direction. The slide of the linear module (61) is provided with a lifting plate (62). The lifting plate (62) is provided with an insertion part (63) extending in the direction near the base frame (1). The frame (3) is provided with an insertion channel (64) adapted to the insertion part (63) on the side opposite to the shielding part (5). The irregularly shaped slider (71) is located on the side of the base (31) away from the feeding mechanism (2). The irregularly shaped channel (72) is opened on the side of the base (31) close to the feeding mechanism (2). The irregularly shaped slider (71) and the irregularly shaped channel (72) on two adjacent bases (31) can cooperate to form a detachable connection.

2. The coating apparatus for a display circuit board according to claim 1, characterized in that, The feeding mechanism (2) includes a drive shaft (21), a sprocket (22), a chain (23), and a motor (24); There are two drive shafts (21) rotatably connected to the vertical part (12). One end of the drive shaft (21) is located between the two vertical parts (12), and the other end of the drive shaft (21) extends to the other side of the connected vertical part (12). The motor (24) is located in the vertical part (12), and the motor shaft of the motor (24) is coaxially connected to one end of the drive shaft (21) that extends through the vertical part (12). The sprocket (22) is fixedly sleeved on the drive shaft (21), and the two sprockets (22) are connected by the chain (23).

3. The coating apparatus for a display circuit board according to claim 2, characterized in that, The spraying mechanism (4) includes a bracket (41), a second linear module (42), a third linear module (43), a fourth linear module (44), a spray gun (45), a slide rail (46), and a slider (47); there are two brackets (41), which are respectively located on the side of the two vertical parts (12) away from the horizontal part (11). The second linear module (42) and the slide rail (46) are both installed on the two brackets (41) away from the vertical parts along the transmission direction of the chain (23). On one side of 12), the slide rail (46) is slidably connected to the slider (47), the linear module three (43) is installed between the linear module two (42) and the slider (47), and the length direction of the linear module three (43) is perpendicular to the transmission direction of the chain (23). The linear module three (43) is provided with a linear module four (44), the length direction of the linear module four (44) is perpendicular to the horizontal part (11), and the spray gun (45) is provided on the linear module four (44).

4. The coating apparatus for a display circuit board according to claim 2, characterized in that, Pusher plates (231) are installed on the opposite sides of the two opposite outer chain plates of the chain (23). One end of the pusher plate (231) extends away from the inside of the chain (23). A connecting block (232) is installed between the two pusher plates (231) and the connecting block (232) is away from the chain (23).

5. The coating apparatus for a display circuit board according to claim 2, characterized in that, The two vertical sections (12) are provided with guide rails (132) on opposite sides along the conveying direction of the sprocket (22). The two bases (31) are provided with guide channels (131) parallel to the guide rails (132) on opposite sides. The guide rails (132) extend from the side away from the vertical section (12) into the guide channel (131) on the same side as the guide rails (132) and are slidably connected.

6. The coating apparatus for a display circuit board according to claim 1, characterized in that, The shielding part (5) is composed of a vertical plate (51) and a baffle (52). The vertical plate (51) is spaced apart from the base frame (1). The baffle (52) is fixedly connected between the vertical plate (51) and the vertical part (12) of the base frame (1). The linear module (61) is installed on the vertical plate (51). The baffle (52) is equipped with a hot air blower (81). The inner walls of the vertical plate (51) and the baffle (52) are equipped with ultraviolet lamps (82).

7. The coating apparatus for a display circuit board according to claim 1, characterized in that, The placement plate (32) has four limiting blocks (10) arranged in a rectangular array on the side away from the feeding mechanism (2), and the area enclosed by the four limiting blocks (10) is adapted to the size of the display circuit board.

8. The coating apparatus for a display circuit board according to claim 6, characterized in that, A photoelectric sensor (91) is provided on the side of the horizontal part (11) facing the frame (3), and a controller (92) is provided on the baffle (52).

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