LED display screen surface mounting device

Abstract

The utility model relates to the technical field of display screen surface mounting, in particular to an LED display screen surface mounting device, which comprises a working table, a first electric slide rail assembly and a second electric slide rail assembly, the working table is provided with the first electric slide rail assembly, and the first electric slide rail assembly is provided with the second electric slide rail assembly. A first motor, a heating pipe and an electric fan are started through a touch control integrated display screen, an output shaft of the first motor drives a screw to rotate, the screw drives a moving table on the screw and components above the moving table to move, a bottom plate moves into a preheating bin, and the heating pipe emits infrared rays to heat the bottom plate; and when surrounding air is heated, the electric fan blows hot air to the bottom plate, so that the bottom plate is uniformly heated, soldering flux in soldering paste can be fully activated, and the welding quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of display screen patch technology, and in particular to an LED display screen patch device. Background Technology

[0002] Display panel mounting typically refers to the process of mounting electronic components onto the circuit board of a display screen using surface mount technology during the manufacturing process. A pick-and-place machine is used to place various small electronic components onto a printed circuit board that has been pre-coated with solder paste.

[0003] Patent CN211820269U discloses a full-color LED display panel mounting device. It includes a left base, a drive shaft, and a servo motor. The rear inner wall of the left base is movably connected to the rear end of the drive shaft, and the rear end of the servo motor is fixedly connected to the front outer wall of the left base. When using this patent for panel mounting, pulling the first and second pressure plates compresses the first and second springs, limiting the position of the display panel to be mounted before mounting. However, this existing patent still has some shortcomings in practical use. Before mounting, a hot air gun is needed to heat the base plate, and solder paste is applied to activate the flux before placing the LEDs in their corresponding positions. Since LEDs are a major component of the display function and there are usually many LEDs, extensive manual preheating of the solder paste is required. Prolonged manual preheating leads to worker fatigue, and manual preheating cannot guarantee uniform preheating of the solder paste, easily resulting in the solder paste not reaching its optimal state and affecting the welding quality.

[0004] Therefore, there is a need to provide an LED display panel mounting device with an automatic preheating function. Utility Model Content

[0005] To overcome the shortcomings of existing patents that require manual preheating of solder paste over a large area, which can lead to worker fatigue and make it difficult to ensure uniform preheating of the solder paste, thus affecting the soldering quality, this utility model provides an LED display panel mounting device with automatic preheating function.

[0006] To address the aforementioned problems, this utility model adopts the following technical solution: an LED display panel mounting device, comprising a worktable, a first electric slide rail assembly, a second electric slide rail assembly, vacuum nozzles, a first motor, a screw, a moving platform, a stop block, a second motor, a pressure plate, a tray, and a touch-screen integrated display. The first electric slide rail assembly is mounted on the upper part of the worktable, and the second electric slide rail assembly is mounted on the first electric slide rail assembly. Both the first and second electric slide rail assemblies consist of an electric slide rail and an electric slider. A corresponding electric slider is installed within the electric slide rail, and the electric slider slides within the corresponding electric slide rail. The electric slide rail of the second electric slide rail assembly is mounted on the electric slider of the first electric slide rail assembly. Fifteen vacuum nozzles are mounted on the electric slider of the second electric slide rail assembly. A first motor is mounted on the right side of the worktable. The machine's output shaft is fitted with a screw via a coupling. A movable platform is threaded onto the screw. Symmetrical stops are fixed to the top right side of the movable platform. A second motor is mounted on the front right side of the movable platform, and a pressure plate is mounted on the output shaft of the second motor. A loading tray is fixedly connected to the top right side of the movable platform. A touch-screen display is mounted on the right side of the middle of the worktable, located behind the first electric slide rail assembly. The machine also includes a preheating chamber, an insulation curtain, heating tubes, and a fan. The preheating chamber is fixedly connected to the middle of the worktable and is located behind the second electric slide rail assembly. The movable platform can slide within the preheating chamber. An insulation curtain is installed at the front of the preheating chamber. Heating tubes (infrared heating tubes) are installed in the upper part of the preheating chamber. A fan is installed in the upper part of the preheating chamber. Seven air inlets are evenly spaced on the top of the preheating chamber, with the heating tubes located above the fans.

[0007] In a preferred embodiment of this utility model, it further includes a material bin, a cylinder, a push plate, a feeding pipe, an infeed pipe, and a plug. The material bin is fixedly connected to the front upper part of the worktable. A cylinder is installed on the front middle part of the material bin. A push plate is installed on the telescopic rod of the cylinder. The push plate slides inside the material bin. An infeed pipe is connected to the front left side of the material bin. A plug is inserted at the top of the feeding pipe. Fifteen feeding pipes are evenly spaced at the bottom of the material bin.

[0008] In a preferred embodiment of this utility model, it further includes a clamping member, a third motor, a rotating plate, and a pull rod. The third motor is installed on the left side of the bottom of the moving table, and the rotating plate is installed on the output shaft of the third motor. Pull rods are rotatably arranged at both ends of the rotating plate, and clamping members are rotatably arranged on the pull rods. The clamping members slide on the worktable.

[0009] In a preferred embodiment of the present invention, a protective pad is also included, with the protective pad being embedded in the inner side of the upper part of the clamping member.

[0010] In a preferred embodiment of the present invention, an elastic rope is also included, and an elastic rope is connected between the cover and the feed tube.

[0011] In a preferred embodiment of the present invention, a dustproof net is also included, and a dustproof net is provided inside the air inlet.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. The first motor, heating tube and electric fan are started by the touch screen. The output shaft of the first motor drives the screw to rotate, so that the screw drives the moving platform on itself and the components above it to move, so that the base plate moves into the preheating chamber, so that the heating tube emits infrared rays to heat the base plate, thereby achieving the effect of automatic preheating. While heating the surrounding air, the electric fan blows hot air onto the base plate, so that the base plate is heated evenly, thereby ensuring that the flux in the solder paste is fully activated and ensuring the welding quality.

[0013] 2. By starting the cylinder, the extension rod of the cylinder retracts, causing the push plate to move downward, so that the solder paste in the material bin is automatically squeezed onto the bottom plate through the feeding pipe, thereby speeding up the work efficiency and ensuring that the solder paste is applied evenly.

[0014] 3. By starting the third motor, the third motor drives the rotating plate to rotate, which in turn drives the two pull rods to rotate. The pull rods drive the clamping parts on their own to move inward, so that the two clamping parts move towards each other, thereby fixing the base plate and preventing the base plate from shifting position when applying solder paste or placing the chip, thus ensuring the quality of the chip placement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the first motor, screw, and moving platform of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the second motor, pressure plate, and loading tray of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the heating element, air inlet, and fan of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the material hopper, cylinder, and extrusion plate of this utility model.

[0020] Figure 6 This is a three-dimensional sectional view of the material hopper and extrusion plate of this utility model.

[0021] Figure 7 This is a three-dimensional sectional view of the clamping component, the third motor, and the rotating rod of this utility model.

[0022] The above-mentioned attached drawings include the following reference numerals: 1-workbench, 2-first electric slide rail assembly, 3-second electric slide rail assembly, 4-vacuum nozzle, 5-first motor, 6-screw, 7-moving table, 8-stop block, 9-second motor, 10-pressure plate, 11-carrying tray, 12-touch integrated display screen, 13-preheating chamber, 14-insulation curtain, 15-heating tube, 151-air inlet, 152-fan, 16-material bin, 17-cylinder, 18-push plate, 19-feeding pipe, 20-feeding pipe, 21-plug, 22-clamping component, 23-third motor, 24-rotating plate, 25-pull rod, 26-protective pad, 27-elastic rope, 28-dustproof net. Detailed Implementation

[0023] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0024] Example 1: An LED display screen patch assembly device, see reference Figures 1-4 and Figure 7As shown, the system includes a worktable 1, a first electric slide rail assembly 2, a second electric slide rail assembly 3, vacuum nozzles 4, a first motor 5, a screw 6, a moving platform 7, a stop 8, a second motor 9, a pressure plate 10, a loading tray 11, and a touch-screen display 12. The first electric slide rail assembly 2 is mounted on the upper part of the worktable 1. The second electric slide rail assembly 3 is mounted on the first electric slide rail assembly 2. Both the first and second electric slide rail assemblies consist of an electric slide rail and an electric slider. Corresponding electric sliders are installed within the electric slide rails, and the electric sliders slide within their respective electric slide rails. The electric slide rail of the second electric slide rail assembly 3 is mounted on the electric slider of the first electric slide rail assembly 2. Fifteen vacuum nozzles 4 are mounted on the electric slider of the second electric slide rail assembly 3. The first motor 5 is bolted to the right side of the worktable 1. The output shaft of the first motor 5 is connected to a screw 6 via a coupling. A moving platform 7 is threaded onto the screw 6. The top right side of the moving platform 7 is symmetrically positioned by welding. A stop block 8 is provided to limit the position of the base plate placed on the moving platform 7. A second motor 9 is bolted to the front right side of the moving platform 7, and a pressure plate 10 is installed on the output shaft of the second motor 9. A loading tray 11 is fixedly connected to the top right side of the moving platform 7. A touch screen display 12 is bolted to the right side of the middle of the worktable 1. The touch screen display 12 is located behind the first electric slide rail assembly 2. The platform also includes a preheating chamber 13, a heat preservation curtain 14, a heating tube 15, and a fan 15. 2. A preheating chamber 13 is fixedly connected to the middle of the workbench 1. The preheating chamber 13 is located behind the second electric slide rail assembly 3. The moving table 7 can slide inside the preheating chamber 13. A heat preservation curtain 14 is provided on the front side of the preheating chamber 13. A heating tube 15 is installed in the upper part of the preheating chamber 13. The heating tube 15 is an infrared heating tube 15. A fan 152 is installed in the upper part of the preheating chamber 13. Seven air inlets 151 are evenly spaced on the top of the preheating chamber 13. The heating tube 15 is located above the fan 152.

[0025] See Figure 1 and Figure 4 As shown, it also includes a dustproof net 28, which is installed inside the air inlet 151.

[0026] When surface mount technology (SMT) is required for the display screen, multiple SMT LED strips are placed on the carrier tray 11. Then, the second motor 9 is started, and the output shaft of the second motor 9 drives the pressure plate 10 to rotate, causing the pressure plate 10 to press against the edges of two LED strips, thereby fixing and limiting the LED strips. Then, the base plate is placed on the moving stage 7, and the first motor 5 is started through the touch screen 12. The output shaft of the first motor 5 drives the screw 6 to rotate, causing the screw 6 to drive the moving stage 7 and the components above it to move, so that the base plate moves into the preheating chamber 13. At this time, the heating tube 15 and the fan in the preheating chamber 13 are started through the touch screen 12, so that the heating tube 15 emits infrared rays to heat the base plate, thereby achieving the effect of automatic preheating. While heating the surrounding air, the fan blows hot air onto the base plate, so that the base plate is heated evenly, thereby ensuring that the flux in the solder paste is fully activated and ensuring the soldering quality. After the preheating is completed, the heating tube 15 and the fan 152 are turned off through the touch screen 12, and then the output shaft of the first motor 5 is driven to reverse and drive the screw 152. 6. Reverse rotation drives the moving platform 7 back to its original position, then solder paste is applied to the base plate. After application, the first motor 5, the first electric slide rail assembly 2, and the second electric slide rail assembly 3 are activated via the touch screen 12, causing the moving platform 7 to move backward. Simultaneously, the electric slide rail drive of the first electric slide rail assembly 2 drives its own electric slider and the second electric slide rail assembly 3 to move downward. As the second electric slide rail assembly 3 moves downward, the vacuum nozzle 4 removes the LED from the LED strip. After removal, the electric slider on the first electric slide rail assembly 2 drives the second electric slide rail assembly 3 to move upward. Then, the electric slide rail drive of the second electric slide rail assembly 3 drives its own electric slider and the vacuum nozzle 4 to move left and right. When it reaches the appropriate position, the electric slider on the first electric slide rail assembly 2 drives the second electric slide rail assembly 3 to move downward, thus placing the LED on the solder paste. After placement, the second electric slide rail assembly 3 and the first electric slide rail assembly 2 automatically return to their original positions and proceed with the next LED placement. The dustproof net 28 can prevent external impurities from falling into the preheating chamber 13 and prevent the fan 152 from being stuck.

[0027] Example 2: Based on Example 1, refer to Figure 1 , Figure 5 and Figure 6 As shown, it also includes a material bin 16, a cylinder 17, a push plate 18, a feeding pipe 19, a feed pipe 20, and a plug 21. The material bin 16 is fixedly connected to the upper front side of the workbench 1. The cylinder 17 is bolted to the middle front side of the material bin 16. The push plate 18 is installed on the telescopic rod of the cylinder 17. The push plate 18 slides inside the material bin 16. The feed pipe 20 is connected to the left front side of the material bin 16. The top of the feeding pipe 19 is plugged with a plug 21. Fifteen feeding pipes 19 are evenly spaced at the bottom of the material bin 16.

[0028] See Figure 1 As shown, it also includes an elastic rope 27, which connects the cover and the feed tube 20.

[0029] When the preheating moving platform 7 moves out of the preheating chamber 13, the cylinder 17 is activated. The telescopic rod of the cylinder 17 retracts, causing the push plate 18 to move downward. This allows the solder paste in the material chamber 16 to be automatically squeezed onto the base plate through the feeding pipe 19, thereby speeding up the work efficiency and ensuring that the solder paste is evenly applied. After the application is complete, the cylinder 17 is turned off. When solder paste needs to be added, the cap is removed, and the solder paste is injected into the material chamber 16 through the feeding pipe 19. The elastic rope 27 can prevent the cap from being lost.

[0030] See Figure 1 and Figure 7 As shown, it also includes a clamping component 22, a third motor 23, a rotating plate 24, and a pull rod 25. The third motor 23 is bolted to the bottom left side of the moving table 7. The rotating plate 24 is mounted on the output shaft of the third motor 23. The pull rod 25 is rotatably mounted on both the left and right ends of the rotating plate 24. The clamping component 22 is rotatably mounted on the pull rod 25. The clamping component 22 slides on the worktable 1.

[0031] See Figure 1 As shown, it also includes a protective pad 26, which is embedded in the inner side of the upper part of the clamping member 22.

[0032] When the base plate is placed on the moving platform 7, the third motor 23 is started, which drives the rotating plate 24 to rotate. The rotating plate 24 drives the two pull rods 25 to rotate, and the pull rods 25 drive the clamping parts 22 on their own to move inward, so that the two clamping parts 22 move towards each other, thereby fixing the base plate and preventing the base plate from shifting position when applying solder paste or placing the chip, thus ensuring the quality of the chip placement. When it is necessary to remove the base plate, the output shaft of the third motor 23 is reversed, so that the rotating plate 24 and the two pull rods 25 reverse, and the two clamping parts 22 move outward, thereby releasing the base plate. The protective pad 26 can reduce the pressure between the base plate and the clamping parts 22, thereby preventing the base plate from being bent.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An LED display panel mounting device, comprising a worktable (1), a first electric slide rail assembly (2), a second electric slide rail assembly (3), a vacuum nozzle (4), a first motor (5), a screw (6), a moving platform (7), a stop (8), a second motor (9), a pressure plate (10), a tray (11), and a touch-screen integrated display (12). The first electric slide rail assembly (2) is mounted on the worktable (1), and the second electric slide rail assembly (3) is mounted on the first electric slide rail assembly (2). The electric slide rail assembly (3) is mounted on the second electric slide rail assembly (3). Multiple vacuum nozzles (4) are installed on the slider, a first motor (5) is installed inside the worktable (1), a screw (6) is installed on the output shaft of the first motor (5) through a coupling, a movable stage (7) is threaded on the screw (6), two stops (8) are fixedly connected to the movable stage (7), a second motor (9) is installed on the movable stage (7), a pressure plate (10) is installed on the output shaft of the second motor (9), a loading tray (11) is fixedly connected to the movable stage (7), and a touch screen display (12) is installed on the worktable (1). Its features are: It also includes a preheating chamber (13), an insulation curtain (14), a heating pipe (15) and a fan (152). The preheating chamber (13) is fixedly connected to the workbench (1). The insulation curtain (14) is installed on the preheating chamber (13). The heating pipe (15) is installed inside the preheating chamber (13). The fan (152) is installed inside the preheating chamber (13). Multiple air inlets (151) are opened on the preheating chamber (13). The heating pipe (15) is located above the fan (152).

2. The LED display screen patch assembly device according to claim 1, characterized in that: It also includes a material bin (16), a cylinder (17), a push plate (18), a feeding pipe (19), a feed pipe (20), and a plug (21). The material bin (16) is fixedly connected to the workbench (1). The cylinder (17) is installed on the material bin (16). The push plate (18) is installed on the telescopic rod of the cylinder (17). The push plate (18) slides in the material bin (16). The feed pipe (20) is connected to the material bin (16). The plug (21) is inserted into the feeding pipe (19). Multiple feeding pipes (19) are connected to the material bin (16).

3. An LED display screen patch assembly device according to claim 2, characterized in that: It also includes a clamping element (22), a third motor (23), a rotating plate (24) and a pull rod (25). The third motor (23) is installed on the moving table (7). The rotating plate (24) is installed on the output shaft of the third motor (23). Two pull rods (25) are rotatably arranged on the rotating plate (24). The clamping element (22) is rotatably arranged on the pull rod (25). The clamping element (22) slides on the worktable (1).

4. An LED display screen patch assembly device according to claim 3, characterized in that: It also includes a protective pad (26), and the clamping member (22) is embedded with a protective pad (26).

5. An LED display screen patch assembly device according to claim 4, characterized in that: It also includes an elastic cord (27), which connects the cover and the feed tube (20).

6. An LED display screen patching device according to claim 5, characterized in that: It also includes a dustproof net (28), and a dustproof net (28) is installed inside the air inlet (151).

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