LED display screen production device and process

Abstract

The invention discloses an LED display screen production device and process, and particularly relates to the field of LED display screen production.The production device comprises a solution box, the top of the solution box is open, a partition plate is arranged in the solution box, the lower half portion of the partition plate is a liquid containing area used for containing etching liquid, and the upper half portion of the partition plate is a collecting area used for collecting the etching liquid; and a conveying assembly is arranged at the top of the solution box, and the conveying assembly is used for conveying a copper-clad plate. According to the invention, by arranging the blowing mechanism, after one surface is etched, air flow is sprayed to the etched to-be-treated surface of the copper-clad plate, so that residual etching liquid condensed into beads is blown off or air-dried, and the problem of over-etching caused by the residual etching liquid condensed into beads on the complex surface of the copper-clad plate is solved; the problem that the etched surface is excessively etched due to the residual etching liquid when the other surface of the copper-clad plate is etched is avoided, and the etching quality of the copper-clad plate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display screen production, and more specifically, to a device and process for producing an LED display screen. Background Art

[0002] LED display is a display device that uses light-emitting diodes (LEDs) as light sources. It integrates many LED components on the screen to display text, images, videos and other information. LED display is widely used in advertising, information release, stage background, stadiums and other scenes. PCB board is an indispensable part of LED display. As the basis of LED display, PCB board ensures the stability of the circuit and the overall performance of the system.

[0003] In the manufacturing process of PCB boards, it is necessary to etch the PCB boards. Excess copper foil is removed by using etching liquid to form a circuit pattern. Currently, etching is usually performed by immersing the copper clad board in the etching liquid to remove the excess copper foil on the surface of the copper clad board. However, as the etching liquid is used, the concentration of the etching liquid will gradually decrease, resulting in the inability to accurately determine the etching rate, causing the circuit board to be over-etched or incompletely etched. Therefore, in the prior art, etching is performed by spraying etching liquid on the copper clad board to avoid the problem that the etching liquid concentration decreases as the etching progresses during immersion, causing an impact on the etching quality.

[0004] However, when etching is performed by spraying etching liquid on the surface of the copper clad laminate, the copper clad laminate is usually placed flat, and the etching liquid is sprayed on the surface of the copper clad laminate from top to bottom. As the etching proceeds, the etching liquid is sprayed on the surface of the copper clad laminate, but the etching liquid that reacts with the copper foil first will remain on the surface of the copper clad laminate, and the etching liquid will produce a gelatinous plate aggregate remaining on the surface of the copper clad laminate when reacting with the copper foil. The gelatinous plate aggregate accumulates on the copper surface, which affects the spraying force on the one hand and blocks the replenishment of fresh etching liquid on the other hand, resulting in a reduction in etching speed and affecting etching quality. In addition, the etching liquid that reacts with the copper foil later will contact and mix with the etching liquid remaining on the surface of the copper clad laminate, resulting in a reduction in etching liquid concentration, leading to problems affecting etching quality. Therefore, at present, the method of placing the to-be-treated surface of the copper clad laminate downward and spraying the etching liquid from the bottom is usually adopted, so that the residual etching liquid and the gelatinous plate aggregate can fall freely under the action of gravity during the etching process, thereby avoiding the problem of residual affecting etching quality.

[0005] However, for copper-clad laminates with complex surfaces, there are many fine circuits and patterns on the surface of the copper-clad laminates. During spray etching, due to the intermolecular force in the solution, the solution is easily condensed into beads after spraying, causing the etching solution to easily condense into beads and adhere to the complex surface of the copper-clad laminate. Due to the presence of multi-dimensional fine circuits and patterns on the complex surface, under the action of gravity, the etching solution condensed into beads is also difficult to fall freely in time. In addition, for double-sided copper-clad laminates with complex circuits on the surface, after etching one side, the copper-clad laminate needs to be turned over and the other side needs to be etched. When the copper-clad laminate is turned over and the other side is etched, the etched side faces up. If the etching solution condensed into beads is not removed from the etched side, the etching solution condensed into beads is very likely to remain on the etched side, resulting in excessive etching. Summary of the invention

[0006] The present invention provides an LED display screen production device and process, and aims to solve the following problem: when etching is performed in the existing method of placing the copper-clad board to be processed downward and spraying etching liquid from below, for a copper-clad board with a complex surface, there are many fine circuits and patterns on the surface of the copper-clad board. During spray etching, due to the intermolecular force of the solution, the solution is easily condensed into beads after spraying, resulting in the etching liquid being easily condensed into beads and attached to the complex surface of the copper-clad board. Due to the presence of multi-dimensional fine circuits and patterns on the complex surface, under the action of gravity, the etching liquid condensed into beads is also difficult to fall freely in time. Therefore, after etching is completed on one side of the copper-clad board, when etching the other side of the copper-clad board, the etching liquid that has been etched is very likely to remain on the side that has been etched, resulting in the problem of over-etching.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an LED display screen production device, comprising: a solution box, the top of the solution box is open, and a partition is arranged in the solution box, the lower half of the partition is a liquid storage area for storing etching liquid, and the upper half of the partition is a collection area for receiving the etching liquid after use, and a conveying component is arranged on the top of the solution box, and the conveying component is used to convey a copper clad laminate, and the surface to be processed of the copper clad laminate faces the solution box; A spray mechanism is provided in the collection area, and the spray mechanism includes a liquid extraction component, which is used to extract the etching liquid from the liquid storage area and spray the etching liquid onto the surface to be processed of the copper clad laminate, and the used etching liquid and the etching products can fall freely under the action of gravity; A blowing mechanism is also provided in the collection area, and the blowing mechanism includes an air pump. The blowing mechanism blows air toward the complex surface to be processed of the copper clad laminate through the air pump to clean the etching liquid remaining on the complex surface to be processed of the copper clad laminate.

[0008] In a preferred embodiment, the liquid extraction component is installed on a partition, the liquid inlet end of the liquid extraction component is connected to a liquid inlet pipe, and the liquid inlet end of the liquid inlet pipe extends to the liquid storing area, the liquid outlet end of the liquid extraction component is connected to a hose, the end of the hose is connected to a cross pipe, and a plurality of nozzles are arranged on the cross pipe, and the liquid outlet ends of the plurality of nozzles are all directed to the surface to be treated of the copper clad laminate.

[0009] In a preferred embodiment, a swing drive mechanism is provided on the solution tank, and the swing drive mechanism is used to drive multiple nozzles to swing so as to evenly spray the surface to be treated of the copper clad laminate. The swing drive mechanism includes a connecting shaft, which is rotatably arranged on the solution tank, and the end of the connecting shaft is fixedly connected to the cross tube, and the other end of the connecting shaft is fixedly provided with a rectangular frame. A power component is installed on the solution tank, and a disc is installed on the output end of the power component. A dial shaft is fixedly provided on the disc, and the dial shaft is movably connected in the rectangular frame.

[0010] In a preferred embodiment, the air pump is installed on the solution tank, and the air outlet end of the air pump extends into the collection area and is connected to a connecting pipe, the air outlet end of the connecting pipe is connected to a side pipe, and a plurality of air outlet heads are provided on the side pipe, and the air outlet ends of the plurality of air outlet heads all point to the surface to be treated of the copper clad laminate.

[0011] In a preferred embodiment, a flipping mechanism is also provided on the solution tank, and the flipping mechanism includes a connecting seat, which is installed on the solution tank, and a vertical driving assembly is installed on the connecting seat. A moving seat is provided at the output end of the vertical driving assembly, and a rotating driving assembly is installed on one side of the moving seat. A side disk is installed at the output end of the rotating driving assembly, and two side panels are installed on one side of the side disk. The two side panels are located at the top opening position of the solution tank, and clamping assemblies are provided in the two side panels, and the clamping assemblies are used to clamp and fix the copper clad laminate.

[0012] In a preferred embodiment, the clamping assembly includes a side hole opened on the side plate, and side grooves are opened on the inner walls on both sides of the side hole. A driving member 1 is installed on the top and bottom of the side plate. The output ends of the two driving members 1 extend into the corresponding side grooves and are installed with brackets. Connecting rollers are installed in the two brackets, and the connecting rollers are used to support the copper clad laminate. The clamping assembly drives the two brackets to move synchronously towards each other through the driving member 1, and clamps the copper clad laminate through the connecting rollers.

[0013] In a preferred embodiment, a pressing mechanism is provided on the movable seat, and the pressing mechanism includes a connecting frame, which is fixedly arranged on the movable seat, and a driving member 2 is installed on the connecting frame, and a base frame is installed on the output end of the driving member 2, and multiple groups of bonding components are arranged in the base frame, and the bonding components include two rotatably arranged rollers, and a pressing belt is arranged on the two rollers for transmission, and a driving member 3 is installed on the connecting frame, and the output end of the driving member 3 is fixedly connected to one of the rollers.

[0014] In a preferred embodiment, a barrier assembly is provided on both sides of the side plate, and the barrier assembly includes a barrier member fixedly provided on the side plate. The barrier member is used to prevent the etching liquid from spraying on the holes of the copper clad laminate from the gap when the copper clad laminate moves in the gap between two adjacent bonding assemblies.

[0015] In a preferred embodiment, a liquid delivery mechanism is provided on the solution box, the liquid delivery mechanism includes a liquid delivery pipe, the liquid inlet end of the liquid delivery pipe is connected to the collection area, the liquid outlet end of the liquid delivery pipe is connected to the liquid holding area, and a valve is provided on the liquid delivery pipe. The liquid delivery pipe is used to deliver the used etching solution to the liquid holding area after treatment.

[0016] A production process of an LED display screen comprises the following steps: Step 1: Place the copper clad laminate on the conveying assembly and convey the copper clad laminate through the conveying assembly. Before conveying, the pressing mechanism drives the pressing belt to fit the upper surface of the copper clad laminate. During the conveying process of the copper clad laminate, the pressing assembly drives the pressing belt to move synchronously with the copper clad laminate. Step 2: During the conveying process of the copper-clad laminate, the spray mechanism extracts the etching liquid and sprays and etches the bottom of the copper-clad laminate. When the copper-clad laminate moves into the side holes of the two side plates, the spraying of the etching liquid is stopped, and the bonding component is driven away from the copper-clad laminate; Step 3: The blowing mechanism blows air to the bottom of the copper clad laminate to blow off or air dry the etching liquid that has condensed into beads and remains on the complex position of the copper clad laminate surface, and then the clamping assembly clamps the copper clad laminate, and the turning mechanism turns the copper clad laminate over and resets the copper clad laminate; Step 4: Finally, the pressing mechanism drives the pressing belt to stick to the upper surface of the copper clad laminate, and continues to convey the copper clad laminate through the conveying component, and spray etches the other side of the copper clad laminate at the same time. When the etching of the other side of the copper clad laminate is completed, stop conveying the copper clad laminate, drive the laminating component away from the copper clad laminate, and then blow the other side of the copper clad laminate through the blowing mechanism.

[0017] The beneficial effects of the present invention are: The present invention provides an air blowing mechanism. After one side of the copper clad board is etched, the air flow is sprayed toward the surface to be processed of the copper clad board that has been etched, so that the residual etching liquid condensed into beads is blown off or air-dried, so as to solve the problem of over-etching caused by the etching liquid condensed into beads remaining on the complex surface of the copper clad board, avoid the problem of over-etching of the etched side due to the residual etching liquid when etching the other side of the copper clad board, and improve the etching quality.

[0018] The present invention provides a pressing mechanism so that when etching a copper-clad laminate that needs to be pre-drilled before etching, a pressing belt is applied to the upper surface of the copper-clad laminate to avoid the problem of excessive etching of the upper surface of the copper-clad laminate caused by the etching liquid being sprayed onto the upper surface of the copper-clad laminate through the holes during etching. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0021] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0022] Figure 4 for Figure 3 Enlarged view of part A.

[0023] Figure 5 The three-dimensional structure of the present invention is shown in FIG. Figure 3 .

[0024] Figure 6 for Figure 5 Schematic diagram of the three-dimensional cross-sectional structure.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the turning mechanism of the present invention.

[0026] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure.

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention.

[0028] Fig.10 for Figure 8 A magnified view of the structure in the middle.

[0029] Fig.11 for Fig.10 A magnified view of the structure in the middle.

[0030] Fig.12 It is a production process flow chart of the present invention.

[0031] The accompanying drawings are marked as follows: 1, solution tank; 2, conveying assembly; 3, spray mechanism; 31, liquid extraction assembly; 32, liquid inlet pipe; 33, hose; 34, horizontal pipe; 35, nozzle; 4, swing drive mechanism; 41, connecting shaft; 42, rectangular frame; 43, power component; 44, disc; 45, dial shaft; 5, blowing mechanism; 51, air pump; 52, connecting pipe; 53, side pipe; 54, air outlet head; 6, flip mechanism; 61, connecting seat; 62, vertical drive assembly; 63, moving seat; 64. Side plate; 65. Rotary drive assembly; 66. Side plate; 67. Clamping assembly; 671. Side hole; 672. Side groove; 673. Driving member one; 674. Bracket; 675. Connecting roller; 7. Pressing mechanism; 71. Connecting frame; 72. Driving member two; 73. Base frame; 74. Laminating assembly; 741. Roller; 742. Pressing belt; 743. Driving member three; 8. Blocking assembly; 81. Blocking member; 9. Liquid delivery mechanism; 91. Liquid delivery pipe; 92. Valve; 10. Copper clad laminate. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Refer to the instruction manual Figures 1 to 6 , a production device for an LED display screen, comprising: a solution box 1, the top of the solution box 1 is open, and a partition is arranged in the solution box 1, the lower half of the partition is a liquid storage area for storing etching liquid, and the upper half of the partition is a collection area for receiving the etching liquid after use, and a conveying component 2 is arranged on the top of the solution box 1, and the conveying component 2 is used to convey a copper clad laminate 10, and the surface to be processed of the copper clad laminate 10 faces the solution box 1; The collection area is provided with a spray mechanism 3, and the spray mechanism 3 includes a liquid extraction component 31, and the liquid extraction component 31 is used to extract the etching liquid in the liquid storage area and spray the etching liquid onto the surface to be processed of the copper clad plate 10, and the used etching liquid and the etching product can fall freely under the action of gravity; A blowing mechanism 5 is also provided in the collection area. The blowing mechanism 5 includes an air pump 51. The blowing mechanism 5 blows air toward the complex surface to be processed of the copper clad laminate 10 through the air pump 51 to clean the etching liquid remaining on the complex surface to be processed of the copper clad laminate 10.

[0034] It should be noted that the conveying assembly 2 is a plurality of rollers driven by a chain. The conveying assembly 2 includes two groups. The two groups of conveying assemblies 2 are respectively arranged on both sides of the top of the solution tank 1. The copper clad laminate 10 is placed on the two groups of conveying assemblies 2 for conveying. The liquid pumping assembly 31 is a water pump. The etching liquid in the liquid holding area is pumped by the water pump to spray the etching liquid onto the copper clad laminate 10 for etching treatment.

[0035] The implementation scenario is specifically as follows: the surface to be treated of the copper clad laminate 10 is facing the solution tank 1, and the copper clad laminate 10 is placed on the conveying assembly 2, and the conveying assembly 2 composed of a plurality of rollers driven by a chain is used to convey the copper clad laminate 10. During the conveying process of the copper clad laminate 10, the etching liquid in the liquid area is extracted by a water pump and sprayed onto the copper clad laminate 10 for etching treatment. Since the spraying mechanism 3 is located in the collection area and the surface to be treated of the copper clad laminate 10 is facing the solution tank 1, the etching liquid can be freely dropped to the collection area under the action of the weight of the colloid-like plate aggregate generated when the etching liquid reacts with the copper foil during the etching process, so as to avoid the colloid-like plate aggregate being formed by the etching liquid. The colloid-like aggregates remain on the surface of the copper-clad laminate 10, causing the problem of affecting the etching efficiency and etching quality due to the obstruction of the colloid-like aggregates, and the etching solution that first reacts with the copper foil can also fall freely under the action of gravity after the reaction, avoiding the etching solution residue after the reaction, causing the problem of over-etching caused by the etching solution residue and affecting the etching quality. After the etching on one side is completed, the air flow can be ejected by the air pump 51 and sprayed on the surface to be processed on the copper-clad laminate 10 that has been etched, so that the residual etching solution condensed into beads is blown off or air-dried, so as to solve the problem of over-etching caused by the etching solution condensed into beads remaining on the surface, thereby improving its etching quality.

[0036] For further information, please refer to the attached manual. Figure 2 The liquid extraction component 31 is installed on the partition, the liquid inlet end of the liquid extraction component 31 is connected to the liquid inlet pipe 32, and the liquid inlet end of the liquid inlet pipe 32 extends to the liquid storing area, the liquid outlet end of the liquid extraction component 31 is connected to the hose 33, the end of the hose 33 is connected to the cross pipe 34, and a plurality of nozzles 35 are arranged on the cross pipe 34, and the liquid outlet ends of the plurality of nozzles 35 are all directed to the surface to be treated of the copper clad laminate 10.

[0037] It should be noted that the liquid extraction component 31 is a water pump, which extracts the etching liquid from the liquid storage area through the liquid inlet pipe 32, and transports it to the horizontal pipe 34 through the hose 33, and then sprays it to the surface to be treated of the copper clad laminate 10 through multiple nozzles 35 to etch the copper clad laminate 10.

[0038] For further information, please refer to the attached manual. Figure 3 and Figure 4A swing driving mechanism 4 is provided on the solution tank 1, and the swing driving mechanism 4 is used to drive multiple nozzles 35 to swing so as to evenly spray the surface to be treated of the copper clad laminate 10. The swing driving mechanism 4 includes a connecting shaft 41, and the connecting shaft 41 is rotatably set on the solution tank 1, and the end of the connecting shaft 41 is fixedly connected to the cross tube 34, and the other end of the connecting shaft 41 is fixedly provided with a rectangular frame 42. A power component 43 is installed on the solution tank 1, and a disc 44 is installed at the output end of the power component 43. A dial shaft 45 is fixedly provided on the disc 44, and the dial shaft 45 is movably connected in the rectangular frame 42.

[0039] It should be noted that the power component 43 is a motor, which drives the disc 44 to rotate, so that the disc 44 drives the dial shaft 45 to revolve, so that the dial shaft 45 can move in the rectangular frame 42 and drive the rectangular frame 42 to swing back and forth, so that under the action of the connecting shaft 41, it can drive the cross tube 34 to swing back and forth, and then the surface to be treated of the copper clad laminate 10 can be sprayed back and forth, ensuring that the surface to be treated of the copper clad laminate 10 is evenly sprayed and etched.

[0040] For further information, please refer to the attached manual. Figure 5 and Figure 6 The air pump 51 is installed on the solution tank 1, and the air outlet end of the air pump 51 extends into the collection area and is connected to a connecting pipe 52. The air outlet end of the connecting pipe 52 is connected to a side pipe 53. The side pipe 53 is provided with multiple air outlet heads 54. The air outlet ends of the multiple air outlet heads 54 all point to the surface to be treated of the copper clad laminate 10.

[0041] It should be noted that the air pump 51 cooperates with the connecting pipe 52 and the side pipe 53, and sprays air through multiple air outlet heads 54, so that the air flow blows toward the surface to be treated of the copper clad laminate 10, so that the etching liquid remaining on the surface of the copper clad laminate 10 that has been etched due to the complex surface can be blown off or air-dried.

[0042] For further information, please refer to the attached manual. Figure 7The solution tank 1 is also provided with a flip mechanism 6, which includes a connecting seat 61, which is mounted on the solution tank 1, and a vertical driving assembly 62 is mounted on the connecting seat 61, and a moving seat 63 is arranged at the output end of the vertical driving assembly 62, and a rotating driving assembly 65 is mounted on one side of the moving seat 63, and a side plate 64 is mounted on the output end of the rotating driving assembly 65, and two side plates 66 are mounted on one side of the side plate 64, and the two side plates 66 are located at the top opening position of the solution tank 1, and the two side plates 66 are both provided with a clamping assembly 67, and the clamping assembly 67 is used to clamp the copper clad plate 1 0 clamped and fixed, the clamping assembly 67 includes a side hole 671 opened on the side plate 66, and side grooves 672 are opened on the inner walls on both sides of the side hole 671. The top and bottom of the side plate 66 are installed with a driving member 673. The output ends of the two driving members 673 extend into the corresponding side grooves 672 and are installed with brackets 674. The two brackets 674 are installed with connecting rollers 675. The connecting rollers 675 are used to support the copper clad laminate 10. The clamping assembly 67 drives the two brackets 674 to move synchronously close to each other through the driving member 673, and clamps the copper clad laminate 10 through the connecting rollers 675.

[0043] It should be noted that the vertical drive assembly 62 is a hydraulic cylinder, the rotation drive assembly 65 is a motor, and the driving member 673 is a cylinder. When the copper clad laminate 10 is transported to the side holes 671 in the two side plates 66, the transportation of the copper clad laminate 10 is stopped, and then the copper clad laminate 10 located in the two side holes 671 is blown by the blowing mechanism 5, and then the cylinder drives the bracket 674 to drive the connecting roller 675 to move in the direction close to the copper clad laminate 10, so that it clamps and fixes the copper clad laminate 10, and then the hydraulic cylinder drives the moving seat 63 to drive the copper clad laminate 10 to move upward, and then the motor drives the clamped copper clad laminate 10 to flip over, and finally, the hydraulic cylinder drives the copper clad laminate 10 to flip over, and the flipping of the copper clad laminate 10 can be completed.

[0044] In the above technical scheme, some thick double-sided PCB boards are more likely to accumulate stress during the manufacturing process. Therefore, in the manufacturing process of the double-sided PCB boards, pre-drilling the copper clad board 10 in the PCB board is generally used to release these stresses, thereby reducing deformation and warping during etching and processing. When there are holes in the copper clad board 10, when the copper clad board 10 is etched by spraying etching liquid from bottom to top, the etching liquid is easy to pass through the holes and remain on the other side of the copper clad board 10. If after etching one side of the copper clad board 10 is completed, in the process of etching the other side by spraying etching liquid, the etching liquid is easy to pass through the holes and remain on the etched side, which will cause excessive etching of that side of the copper clad board 10. For this reason, the present invention proposes a pressing mechanism 7, which is used to press and fit the other side during the etching process of spraying etching liquid, so as to avoid the problem of etching liquid penetrating from the holes.

[0045] For details, please refer to the attached manual. Figure 8 and Fig. 9 A pressing mechanism 7 is arranged on the movable seat 63, and the pressing mechanism 7 includes a connecting frame 71, and the connecting frame 71 is fixedly arranged on the movable seat 63. A driving member 2 72 is installed on the connecting frame 71, and a base frame 73 is installed on the output end of the driving member 2 72. A plurality of laminating components 74 are arranged in the base frame 73, and the laminating components 74 include two rotatably arranged rollers 741, and a pressing belt 742 is transmitted on the two rollers 741. A driving member 3 743 is installed on the connecting frame 71, and the output end of the driving member 3 743 is fixedly connected to one of the rollers 741.

[0046] It should be noted that the driving member 2 72 is a hydraulic cylinder, and the driving member 3 743 is a motor. The hydraulic cylinder drives the base frame 73 to move downward, so that the pressing belt 742 is in contact with the upper surface of the copper clad laminate 10, and the pressing belt 742 blocks the hole position to prevent the etching liquid from being sprayed from the hole position to the upper surface of the copper clad laminate 10. In the process of conveying the copper clad laminate 10, the motor drives the roller 741 to rotate, so that under the joint action of the two rollers 741, the pressing belt 742 can be driven to move, so that the pressing belt 742 maintains the same movement speed as the copper clad laminate 10, so that the pressing belt 742 does not generate resistance to the movement of the copper clad laminate 10, so that when the pressing belt 742 is pressed on the upper surface of the copper clad laminate 10, the problem of affecting the movement of the copper clad laminate 10 due to the contact resistance can be avoided.

[0047] In the above technical solution, a plurality of pressing belts 742 are in contact with the corresponding surfaces of the copper clad laminate 10 to solve the problem that the etching liquid is sprayed from the holes on the copper clad laminate 10 to the upper surface of the copper clad laminate 10. However, there is a certain gap between two adjacent pressing belts 742. When the copper clad laminate 10 moves from one pressing belt 742 to the bottom of another pressing belt 742, the pressing belt 742 cannot block the etching liquid at this time. For this reason, the present invention also proposes a blocking component 8 for blocking the etching liquid sprayed toward the gap.

[0048] For details, please refer to the attached manual. Fig.10 and Fig.11 A barrier assembly 8 is provided on both sides of the side plate 66, and the barrier assembly 8 includes a barrier member 81, which is fixedly arranged on the side plate 66. The barrier member 81 is used to block the etching liquid from spraying on the hole position of the copper clad laminate 10 from the gap when the copper clad laminate 10 moves in the gap between two adjacent bonding assemblies 74.

[0049] It should be noted that the baffle 81 can be a flexible baffle, which can block the etching liquid from spraying from the gap to the hole position of the copper clad laminate 10, causing the etching liquid to be sprayed from the hole position to the upper surface of the copper clad laminate 10, and because it is a flexible baffle, it will not cause interference when the copper clad laminate 10 is flipped.

[0050] In the above technical solution, the used etching liquid is collected by the collection area. At this time, the collected etching liquid has a low concentration. In order to avoid wasting the etching liquid, the present invention further proposes a liquid delivery mechanism 9 to recycle the etching liquid.

[0051] For details, please refer to the attached manual. Figure 2 A liquid delivery mechanism 9 is provided on the solution box 1, and the liquid delivery mechanism 9 includes a liquid delivery pipe 91. The liquid inlet end of the liquid delivery pipe 91 is connected to the collection area, and the liquid outlet end of the liquid delivery pipe 91 is connected to the liquid storage area. A valve 92 is provided on the liquid delivery pipe 91. The liquid delivery pipe 91 is used to deliver the used etching solution to the liquid storage area after treatment.

[0052] It should be noted that by injecting high-concentration etching liquid into the collection area, the high-concentration etching liquid is neutralized with the etching liquid whose concentration is reduced after use, and the concentration of the etching liquid in the collection area can be detected by using a concentration monitoring device such as a pH meter. When the etching liquid reaches an appropriate concentration, the valve 92 can be opened to allow the etching liquid in the collection area to flow to the liquid holding area and be used in the etching process.

[0053] Refer to the instruction manual Fig.12 , a production process of an LED display screen, comprising the following steps: Step 1: Place the copper clad laminate 10 on the conveying assembly 2, and convey the copper clad laminate 10 through the conveying assembly 2. Before conveying, the pressing mechanism 7 drives the pressing belt 742 to fit the upper surface of the copper clad laminate 10, and during the conveying process of the copper clad laminate 10, the laminating assembly 74 drives the pressing belt 742 to move synchronously with the copper clad laminate 10; Step 2: During the conveying process of the copper-clad laminate 10, the spray mechanism 3 extracts the etching liquid and sprays and etches the bottom of the copper-clad laminate 10. When the copper-clad laminate 10 moves into the side holes 671 of the two side plates 66, the spraying of the etching liquid is stopped, and the bonding component 74 is driven away from the copper-clad laminate 10; Step 3, the blowing mechanism 5 blows air toward the bottom of the copper clad laminate 10 to blow off or air dry the etching liquid condensed into beads remaining at the complex positions on the surface of the copper clad laminate 10, and then the clamping assembly 67 clamps the copper clad laminate 10, and the turning mechanism 6 turns the copper clad laminate 10 and resets the copper clad laminate 10; Step 4, finally, the pressing mechanism 7 drives the pressing belt 742 to fit the upper surface of the copper clad laminate 10, and continues to convey the copper clad laminate 10 through the conveying component 2, and at the same time, spray etches the other side of the copper clad laminate 10. When the etching of the other side of the copper clad laminate 10 is completed, stop conveying the copper clad laminate 10, drive the laminating component 74 away from the copper clad laminate 10, and then blow the other side of the copper clad laminate 10 through the blowing mechanism 5.

[0054] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A LED display production device, It is characterized in that include: A solution box (1), wherein the top of the solution box (1) is open, and a partition is provided inside the solution box (1), the lower half of the partition is a liquid storage area for storing etching liquid, and the upper half of the partition is a collection area for receiving used etching liquid, and the top of the solution box (1) is provided with a conveying component (2), the conveying component (2) is used to convey the copper clad laminate (10), and the surface to be processed of the copper clad laminate (10) faces the solution box (1); A spray mechanism (3) is provided in the collection area, the spray mechanism (3) comprising a liquid extraction component (31), the liquid extraction component (31) being used to extract etching liquid from the liquid storage area and spray the etching liquid onto the surface to be processed of the copper-clad laminate (10), and the used etching liquid and the etching product can fall freely under the action of gravity; A blowing mechanism (5) is also provided in the collection area, the blowing mechanism (5) comprising an air pump (51), and the blowing mechanism (5) blows air toward the complex surface to be processed of the copper clad laminate (10) through the air pump (51) to clean the etching liquid remaining on the complex surface to be processed of the copper clad laminate (10).

2. The LED display screen production device according to claim 1, Features: The liquid extraction component (31) is mounted on a partition, the liquid inlet end of the liquid extraction component (31) is connected to a liquid inlet pipe (32), and the liquid inlet end of the liquid inlet pipe (32) extends to the liquid storage area, the liquid outlet end of the liquid extraction component (31) is connected to a hose (33), the end of the hose (33) is connected to a transverse pipe (34), and a plurality of nozzles (35) are arranged on the transverse pipe (34), and the liquid outlet ends of the plurality of nozzles (35) are all directed toward the surface to be treated of the copper clad laminate (10).

3. The LED display screen production device according to claim 2, Features: The solution box (1) is provided with a swing drive mechanism (4), and the swing drive mechanism (4) is used to drive a plurality of nozzles (35) to swing so as to evenly spray the surface to be treated of the copper-clad laminate (10). The swing drive mechanism (4) comprises a connecting shaft (41), and the connecting shaft (41) is rotatably arranged on the solution box (1), and the end of the connecting shaft (41) is fixedly connected to the transverse tube (34), and the other end of the connecting shaft (41) is fixedly provided with a rectangular frame (42). A power component (43) is installed on the solution box (1), and a disc (44) is installed at the output end of the power component (43). A dial shaft (45) is fixedly arranged on the disc (44), and the dial shaft (45) is movably connected in the rectangular frame (42).

4. The LED display screen production device according to claim 3, Features: The solution box (1) is provided with an air blowing mechanism (5), the air blowing mechanism (5) comprising an air pump (51), the air pump (51) being mounted on the solution box (1), and the air outlet end of the air pump (51) extending into the collection area and being connected to a connecting pipe (52), the air outlet end of the connecting pipe (52) being connected to a side pipe (53), the side pipe (53) being provided with a plurality of air outlet heads (54), the air outlet ends of the plurality of air outlet heads (54) all pointing to the surface to be treated of the copper clad laminate (10).

5. The LED display screen production device according to claim 4, Features: The solution box (1) is also provided with a turnover mechanism (6), the turnover mechanism (6) comprising a connecting seat (61), the connecting seat (61) being mounted on the solution box (1), a vertical drive assembly (62) being mounted on the connecting seat (61), a moving seat (63) being mounted at the output end of the vertical drive assembly (62), a rotation drive assembly (65) being mounted on one side of the moving seat (63), a side plate (64) being mounted on the output end of the rotation drive assembly (65), two side plates (66) being mounted on one side of the side plate (64), the two side plates (66) being located at the top opening of the solution box (1), and clamping assemblies (67) being mounted in the two side plates (66), the clamping assemblies (67) being used to clamp and fix the copper clad laminate (10).

6. The LED display screen production device according to claim 5, Features: The clamping assembly (67) comprises a side hole (671) formed on the side plate (66), side grooves (672) are formed on the inner walls on both sides of the side hole (671), a driving member (673) is installed on the top and bottom of the side plate (66), the output ends of the two driving members (673) extend into the corresponding side grooves (672), and brackets (674) are installed thereon, and connecting rollers (675) are installed in the two brackets (674), and the connecting rollers (675) are used to support the copper clad laminate (10), and the clamping assembly (67) drives the two brackets (674) to move synchronously towards each other through the driving member (673), and clamps the copper clad laminate (10) through the connecting rollers (675).

7. The LED display screen production device according to claim 6, Features: The movable seat (63) is provided with a pressing mechanism (7), the pressing mechanism (7) comprising a connecting frame (71), the connecting frame (71) being fixedly arranged on the movable seat (63), a second driving member (72) being mounted on the connecting frame (71), an output end of the second driving member (72) being mounted with a base frame (73), a plurality of groups of laminating components (74) being arranged in the base frame (73), the laminating components (74) comprising two rotatably arranged rollers (741), a pressing belt (742) being transmission-arranged on the two rollers (741), a third driving member (743) being mounted on the connecting frame (71), an output end of the third driving member (743) being fixedly connected to one of the rollers (741).

8. The LED display screen production device according to claim 7, Features: A barrier assembly (8) is provided on both sides of the side plate (66), the barrier assembly (8) comprising a barrier member (81), the barrier member (81) being fixedly arranged on the side plate (66), the barrier member (81) being used to prevent etching liquid from being sprayed from the gap onto the hole position of the copper clad plate (10) when the copper clad plate (10) moves in the gap between two adjacent bonding assemblies (74).

9. The LED display screen production device according to claim 8, Features: The solution box (1) is provided with a liquid delivery mechanism (9), the liquid delivery mechanism (9) comprising a liquid delivery pipe (91), the liquid inlet end of the liquid delivery pipe (91) being connected to the collection area, the liquid outlet end of the liquid delivery pipe (91) being connected to the liquid storage area, and a valve (92) being provided on the liquid delivery pipe (91), the liquid delivery pipe (91) being used to deliver the used etching solution to the liquid storage area after being processed.

10. A production process for producing an LED display screen using the LED display screen production device according to claim 9, It is characterized in that The following steps are involved: Step 1: placing a copper clad laminate (10) on a conveying assembly (2), and conveying the copper clad laminate (10) through the conveying assembly (2); before conveying, the pressing mechanism (7) drives the pressing belt (742) to be laminated with the upper surface of the copper clad laminate (10); and during the conveying process of the copper clad laminate (10), the laminating assembly (74) drives the pressing belt (742) to move synchronously with the copper clad laminate (10); Step 2: During the conveying process of the copper-clad laminate (10), the spray mechanism (3) extracts etching liquid and sprays and etches the bottom of the copper-clad laminate (10); when the copper-clad laminate (10) moves into the side holes (671) of the two side plates (66), the spraying of etching liquid is stopped, and the bonding component (74) is driven away from the copper-clad laminate (10); Step 3, the blowing mechanism (5) blows air toward the bottom of the copper-clad laminate (10) to blow off or air-dry the etching liquid that has condensed into beads and remains on the complex positions of the surface of the copper-clad laminate (10), and then the clamping assembly (67) clamps the copper-clad laminate (10), and the turning mechanism (6) turns the copper-clad laminate (10) over and resets the copper-clad laminate (10); Step 4: Finally, the pressing mechanism (7) drives the pressing belt (742) to fit the upper surface of the copper-clad laminate (10), and continues to convey the copper-clad laminate (10) through the conveying component (2), while spray etching is performed on the other side of the copper-clad laminate (10). When the etching of the other side of the copper-clad laminate (10) is completed, the conveying of the copper-clad laminate (10) is stopped, and the laminating component (74) is driven away from the copper-clad laminate (10), and then the other side of the copper-clad laminate (10) is blown through the blowing mechanism (5).

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