A vision inspection device with a screen etching and wire removal structure

Abstract

The present invention relates to the technical field of visual inspection equipment, specifically a visual inspection equipment with a screen etching and wire removal structure. A bidirectional lead screw is adopted. Before placing the screen, the bidirectional lead screw drives the moving frame to move left and right. The position of the moving frame can be adjusted to clamp screens of different lengths. Moreover, the moving frame has an automatic clamping function. When the staff places the screen on the support plate, a downward pressure is applied to the screen, causing the screen to press the lower pressing block downward, thereby driving the inclined side plate to move towards the screen to clamp the screen. When the staff needs to remove the screen, they grasp the screen and move it upward, and the screen is disassembled by rolling with the pressing roller, improving the convenience of clamping the screen and reducing the inspection time.

Description

Technical Field

[0001] The present invention relates to the technical field of vision detection devices, and more specifically, to a vision detection device with a screen etching and wire removing structure. Background Art

[0002] A screen plate is composed of wire meshes of different mesh sizes woven from stainless steel or tungsten steel, a PI film, and a photosensitive resin coated on the wire mesh. It is mainly used for printing. Patterns on common clothing and advertising signs in daily life are presented through screen plate overprinting and superimposed printing. A vision detection device simulates the working principle of the human visual system, uses big data and machine learning algorithms to automatically identify and analyze image content to achieve the purpose of content monitoring and filtering. The vision detection device first obtains the image information on the surface of the screen plate, uses a trained model to identify the image features, and then the device outputs the recognition result to improve the detection efficiency. After degreasing the semi-finished screen plate, the semi-finished screen plate is rinsed to clean and remove the residual etched and broken wire meshes on the surface of the wire mesh. Finally, the semi-finished screen plate is dried. After drying, the non-knot screen plate needs to be detected.

[0003] The prior art is to place the screen plate on a simple test stand, use a CCD camera, and an optical device connected to the lens of the CCD camera to magnify the image of the screen plate at the vision detection station to take pictures and detect the screen plate.

[0004] Chinese Patent with Publication No. CN214651522U discloses an automatic detection device for screen printing screens, which can detect various defects and fine damages on the screen plate by using vision image detection.

[0005] The above-mentioned and similar prior arts can, to a certain extent, perform quality inspection on the finished screen plate, with fast detection efficiency, convenient for batch detection of screen plates, and greatly reducing the manual detection cost. However, after the screen plate is cleaned and dried, it cannot ensure that the residual etched and broken wire meshes on the surface of the screen plate are completely cleaned. If there are still uncleaned wire mesh residues, during quality inspection, it may occur that the etched and broken wire meshes adhere to the surface of the screen plate, resulting in misjudgment of the detection result as unqualified, causing qualified screen plates to be classified as unqualified products and easily causing waste of products.

[0006] Therefore, the present invention provides a vision detection device with a screen etching and wire removing structure, which can detect and remove the residual etched and broken wire meshes on the surface of the screen plate. Summary of the Invention

[0007] In view of the above problems, the present application provides a vision inspection device with a screen etching wire removal structure, which solves the problem that in the prior art, when a vision inspection device performs quality inspection, broken etched wire may adhere to the surface of the screen plate, resulting in misjudgment of the inspection result as unqualified.

[0008] The technical solution of the present invention is: a vision inspection device with a screen etching wire removal structure, including an inspection table, an optical detector, and a feeding mechanism. The optical detector is fixedly installed at the top of the inner wall of the inspection table, and the feeding mechanism is fixedly installed on the back of the inspection table. It is characterized in that: a clamping mechanism is arranged inside the inspection table, and a wire removal mechanism is slidably installed above the clamping mechanism;

[0009] The clamping mechanism is configured to drive the bevel plate to squeeze against the side wall of the screen plate by the downward movement of the pressing block arranged at the top, so as to clamp and fix screen plates of different lengths;

[0010] The pressing block is composed of a section of cylinder and a section of L-shaped hole plate. The position of its hole is located outside the bevel plate and cooperates with the inclined surface of the bevel plate to drive the bevel plate to move;

[0011] The wire removal mechanism is configured to spray and blow air obliquely downward on the surface of the screen plate, and cooperate with the clamping mechanism to strengthen the fixation of the screen plate, so that the screen plate will not be displaced during the wire removal process.

[0012] Further, the clamping mechanism is connected to a bidirectional lead screw through a driving motor on one side of the inspection table. Two moving frames are threadedly installed on the outside of the bidirectional lead screw. Two support plates are respectively fixedly installed on the tops of the two moving frames. The pressing block penetrates and is movably connected to the top of the support plate. One end of a first spring is fixedly connected to the bottom of the pressing block, and the other end of the first spring is fixedly connected to the inside of the moving frame. One side of the bevel plate far from the inner wall of the inspection table is installed through a bearing with a pressing roller, and a rubber sleeve is wrapped on the outside of the pressing roller.

[0013] Further, an N-shaped plate is fixedly installed on the top of the support plate. Inner grooves are symmetrically opened on the inner side of the N-shaped plate. Guide rods are fixedly installed on the inner side of the inner grooves. A second spring is fixedly installed on the inner side of the inner grooves and is located outside the guide rod. The other end of the second spring is fixedly connected to one side of the bevel plate.

[0014] Further, the feeding mechanism includes a cross plate, and the cross plate is fixedly installed on the back of the inspection table. A conveyor belt is arranged on the top of the cross plate. A robotic arm is slidably installed on the top of the cross plate at the position between the inspection table and the conveyor belt.

[0015] Furthermore, a wire removing mechanism is provided inside the inspection table. The wire removing mechanism includes a water spraying pipe. A plurality of nozzles are installed through the bottom of the water spraying pipe. The water spraying pipe removes wires from the surface of the screen plate fixed by the clamping mechanism. An adjusting component is arranged inside the water spraying pipe. The adjusting component is configured to change the width of the water spraying area of the water spraying pipe. A water collecting mechanism is arranged inside the inspection table. The water collecting mechanism is configured to block and collect the wire removing liquid sprayed by the wire removing mechanism.

[0016] Furthermore, the wire removing mechanism further includes a slide rail. The two ends of the slide rail are fixedly installed on the inner walls of both sides of the inspection table. A slider is slidably installed on the outer side of the slide rail. A connecting frame is fixedly installed at the bottom of the slider. A blowing pipe is fixedly installed at the bottom of the connecting frame through a bearing. A hot air blower is fixedly installed on the outer side of the connecting frame. An air duct is installed at the output end of the hot air blower, and the other end of the air duct is installed through one end of the blowing pipe. A water pipe is fixedly installed on the outer side of the connecting frame, and the water pipe is located on the side of the connecting frame away from the hot air blower. One end of the water pipe is fixedly installed with a hose, and the other end of the hose is installed through the top of the central position of the water spraying pipe.

[0017] Furthermore, the water spraying pipe is fixedly installed at the bottom of the connecting frame through a bearing, and the water spraying pipe is located on one side of the blowing pipe. A plurality of tooth grooves are formed at the tops of the water spraying pipe and the blowing pipe. A telescopic rod is fixedly installed at the bottom of the connecting frame, and the telescopic rod is located at the tops of the blowing pipe and the water spraying pipe. A tooth plate is fixedly installed at one end of the telescopic rod, and the tooth plate meshes with the tooth grooves. The telescopic rod cooperates with the tooth grooves and the tooth plate to rotate the blowing pipe and the water spraying pipe.

[0018] Furthermore, the adjusting component further includes another driving motor. The driving motor is fixedly installed at one end of the water spraying pipe. The output end of the driving motor passes through one end of the water spraying pipe through a bearing. A bidirectional screw rod is fixedly installed at the output end of the driving motor, and the other end of the bidirectional screw rod passes through the side wall of the water spraying pipe through a bearing. Two round plates are threadedly installed on the outer side of the bidirectional screw rod. Rubber rings are sleeved on the outer sides of the round plates and are in contact with the inner wall of the water spraying pipe. A thin rod is installed inside the water spraying pipe, and the thin rod passes through the inside of the round plate. The round plate is in contact with the thin rod through another rubber ring.

[0019] Furthermore, the water collecting mechanism includes a water storage tank, and the water storage tank is opened inside the inspection table. A plurality of water leakage holes are opened on the inner side of the bottom wall of the inspection table, and the water leakage holes communicate with the water storage tank. Water flowing holes are symmetrically opened on the front and back surfaces of the inspection table, and the two water flowing holes communicate with the water storage tank. Water collecting plates are symmetrically installed on the front and back surfaces of the inspection table. A control box is fixedly installed on the surface of the water collecting plate close to the front. A group of electric push rods are respectively installed through the bottoms of the two water collecting plates. Each group has two electric push rods. A water blocking plate is fixedly installed at the output end of each group of electric push rods.

[0020] The beneficial effects of the present invention are as follows:

[0021] (1) A vision inspection device with a screen etching and wire removal structure according to the present invention uses a bidirectional lead screw. Before placing the screen, the bidirectional lead screw drives the moving frame to move left and right. The position of the moving frame can be adjusted to clamp screens of different lengths. Moreover, the moving frame has an automatic clamping function. When the staff places the screen on the support plate, a downward pressure is applied to the screen, causing the screen to squeeze the lower pressing block to move downward, thereby driving the bevel plate to move towards the screen to clamp the screen. When the staff needs to remove the screen, they grasp the screen and move it upward, and the screen is disassembled by rolling with the extrusion roller, improving the convenience of clamping the screen and reducing the inspection time.

[0022] (2) A vision inspection device with a screen etching and wire removal structure according to the present invention starts the drive motor on one side of the water spray pipe. The bidirectional screw drives the two circular plates to approach or move away from the center position of the water spray pipe by means of the thread action with the circular plate, so that the wire removal liquid inside the water spray pipe can only be sprayed out through the nozzles between the two circular plates. Thus, redundant nozzles can be closed according to the width of the screen, reducing the waste of wire removal liquid. Subsequently, the telescopic rod is started to drive the toothed plate to move, and the toothed plate drives the water spray pipe to rotate by means of the meshing action with the tooth groove, making the nozzles of the water spray pipe inclined towards the surface of the screen to improve the wire removal effect. After wire removal, the surface of the screen can be blown by hot air to blow off and dry the wire removal liquid on the surface of the screen, reducing the interference of the residual wire removal liquid on the surface of the screen to vision inspection. At the same time, the processes of spraying water and blowing can apply a downward pressure to the screen, making the screen firmly fixed under the action of the clamping mechanism, reducing the steps of adjusting the screen or the detection position of the camera due to the displacement of the screen caused by cleaning or air drying.

[0023] (3) A vision inspection device with a screen etching and wire removal structure according to the present invention uses an electric push rod. Before wire removal from the surface of the screen, the electric push rod drives the water baffle to move upward to a position higher than the nozzles to prevent the splashing of wire removal liquid during the wire removal process, and the wire removal liquid is recovered through the water collecting plate and the water storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the drawings and embodiments.

[0025] Figure 1 is a schematic diagram of the overall structure of a vision inspection device with a screen etching and wire removal structure provided by the present invention;

[0026] Figure 2 is Figure 1 a three-dimensional sectional structure schematic diagram;

[0027] Figure 3 is Figure 1 a schematic diagram of the side structure;

[0028] Figure 4Schematic three-dimensional structure diagram of the clamping mechanism of the present invention;

[0029] Figure 5 Schematic three-dimensional structure diagram of the lower pressing block of the present invention;

[0030] Figure 6 Schematic side sectional structure diagram of the moving frame of the present invention;

[0031] Figure 7 Schematic horizontal sectional structure diagram of the bevel plate of the present invention;

[0032] Figure 8 Schematic three-dimensional structure diagram of the wire removing mechanism of the present invention;

[0033] Figure 9 Schematic front sectional structure diagram of the water spraying pipe of the present invention;

[0034] Figure 10 Schematic side sectional structure diagram of the water spraying pipe of the present invention;

[0035] Figure 11 is Figure 10 Enlarged view of part A of

[0036] In the figure: 1, inspection table; 11, optical detector; 12, control box; 2, feeding mechanism; 21, cross plate; 22, conveyor belt; 23, robotic arm; 3, water collecting mechanism; 31, water storage tank; 32, water leakage hole; 33, water flow hole; 34, water collecting plate; 35, water baffle; 4, clamping mechanism; 41, bidirectional lead screw; 42, moving frame; 43, support plate; 44, lower pressing block; 45, spring one; 46, N-shaped plate; 47, inner groove; 48, guide rod; 49, spring two; 410, bevel plate; 411, extrusion roller; 5, wire removing mechanism; 51, slide rail; 52, slider; 53, connecting frame; 54, air blowing pipe; 55, water spraying pipe; 56, tooth groove; 57, telescopic rod; 58, tooth plate; 59, hot air blower; 510, water pipe; 511, hose; 6, adjustment component; 61, bidirectional screw; 62, circular plate; 63, thin rod. Detailed implementation manners

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but do not constitute a limitation to the present invention.

[0038] Such as Figures 1-8As shown in the figure, an embodiment of the present invention provides a vision inspection device with a screen etching and wire removing structure, which includes an inspection table 1, an optical inspection instrument 11, and a feeding mechanism 2. The optical inspection instrument 11 is fixedly installed at the top of the inner wall of the inspection table 1, and the feeding mechanism 2 is fixedly installed on the back of the inspection table 1. The feeding mechanism 2 includes a cross plate 21, and the cross plate 21 is fixedly installed on the back of the inspection table 1. A conveyor belt 22 is arranged on the top of the cross plate 21. A robotic arm 23 is slidably installed at the top of the position between the inspection table 1 and the conveyor belt 22. A control box 12 is fixedly installed on the surface near the front water collecting plate 34.

[0039] Specifically, the optical inspection instrument 11 is an inspection camera, which is fixed at the most central position of the top of the inner wall of the inspection table 1 and at the most central position above the measured screen at the same time, and can comprehensively inspect the surface of the screen. A central controller is arranged inside the control box 12, which can perform power control on all electrical appliances. When the staff inspects the screen, after one side of the screen is inspected, the robotic arm 23 is started to grab the screen upward and rotate the screen to a position perpendicular to the ground. After the robotic arm 23 rotates the screen 180°, it is placed on the clamping mechanism 4 again to remove wires and inspect the other side of the screen; when the staff inspects a small number of screens, the screen is placed on the clamping mechanism 4 and a downward pressure is applied for fixed inspection; when the staff inspects a large number of screens, the screen is placed on the top of the conveyor belt 22, and is conveyed by the conveyor belt 22. The robotic arm 23 clamps and flips the screen on the top of the conveyor belt 22 by 180° and places it on the clamping mechanism 4. After the inspection is completed, the robotic arm 23 flips it back to the top of the conveyor belt 22, and automatic inspection can be realized.

[0040] In this embodiment, the clamping mechanism 4 is assembled such that the downward movement of the pressing block 44 provided at the top drives the inclined side plate 410 to squeeze against the side wall of the screen, so as to clamp and fix screens of different lengths. The clamping mechanism 4 is connected to a bidirectional lead screw 41 through a driving motor on one side of the inspection table 1. Two moving frames 42 are threadedly installed on the outer side of the bidirectional lead screw 41. Two support plates 43 are respectively fixedly installed on the tops of the two moving frames 42. The pressing block 44 penetrates and is movably connected to the top of the support plate 43. A first spring 45 is fixedly connected to the bottom of the pressing block 44, and the other end of the first spring 45 is fixedly connected to the inside of the moving frame 42. An extrusion roller 411 is installed through a bearing on the side of the inclined side plate 410 away from the inner wall of the inspection table 1. A rubber sleeve is wrapped around the outer side of the extrusion roller 411. An N-shaped plate 46 is fixedly installed on the top of the support plate 43. Inner grooves 47 are symmetrically opened on the inner side of the N-shaped plate 46. A guide rod 48 is fixedly installed on the inner side of the inner groove 47. A second spring 49 is fixedly installed on the inner side of the inner groove 47 and is located outside the guide rod 48. The other end of the second spring 49 is fixedly connected to one side of the inclined side plate 410. A rubber sleeve is wrapped around the outer side of the extrusion roller 411.

[0041] Specifically, the rubber sleeve deforms under pressure, facilitating the extrusion and fixation of the screen plate. The rubber sleeve cooperates with the extrusion roller 411 to enable the screen plate to move up and down under clamping, facilitating firm fixation and disassembly. After the screen plate is disassembled, the lower pressing block 44 moves upward for reset under the action of the first spring 45. At the same time, the bevel plate 410 moves away from the screen plate for reset under the action of the second spring 49, facilitating the clamping of the screen plate for the next time.

[0042] In this embodiment, the wire removing mechanism 5 is assembled to spray and blow the surface of the screen plate obliquely downward, cooperating with the clamping mechanism 4 to strengthen the fixation of the screen plate, so that the screen plate will not be displaced during the wire removing process. The wire removing mechanism 5 includes a water spraying pipe 55. A plurality of nozzles are installed through the bottom of the water spraying pipe 55. The water spraying pipe 55 removes wires from the surface of the screen plate fixed by the clamping mechanism 4. An adjusting component 6 is arranged inside the water spraying pipe 55. The adjusting component 6 is assembled to change the width of the water spraying area of the water spraying pipe 55. A water collecting mechanism 3 is arranged inside the detection table 1. The water collecting mechanism 3 is assembled to block and collect the wire removing liquid sprayed by the wire removing mechanism 5. The wire removing mechanism 5 further includes a slide rail 51. Both ends of the slide rail 51 are fixedly installed on the inner walls of both sides of the detection table 1. A slider 52 is slidably installed on the outside of the slide rail 51. A connecting frame 53 is fixedly installed at the bottom of the slider 52. A blowing pipe 54 is fixedly installed at the bottom of the connecting frame 53 through a bearing. A hot air blower 59 is fixedly installed on the outside of the connecting frame 53. The output end of the hot air blower 59 is provided with an air duct, and the other end of the air duct is installed through one end of the blowing pipe 54. A water pipe 510 is fixedly installed on the outside of the connecting frame 53, and the water pipe 510 is located on the side of the connecting frame 53 away from the hot air blower 59. One end of the water pipe 510 is fixedly installed with a hose 511, and the other end of the hose 511 is installed through the top of the central position of the water spraying pipe 55. The wire removing liquid is continuously injected into one end of the water pipe 510, so that the wire removing liquid enters the inside of the water spraying pipe 55 from the water pipe 510 and the hose 511, and the wire removing liquid is sprayed out by the nozzles. The water spraying pipe 55 is fixedly installed at the bottom of the connecting frame 53 through a bearing, and the water spraying pipe 55 is located on one side of the blowing pipe 54. A plurality of tooth grooves 56 are formed at the tops of the water spraying pipe 55 and the blowing pipe 54. A telescopic rod 57 is fixedly installed at the bottom of the connecting frame 53, and the telescopic rod 57 is located at the tops of the blowing pipe 54 and the water spraying pipe 55. A tooth plate 58 is fixedly installed at one end of the telescopic rod 57, and the tooth plate 58 meshes with the tooth grooves 56. The telescopic rod 57 cooperates with the tooth grooves 56 and the tooth plate 58 to rotate the blowing pipe 54 and the water spraying pipe 55.

[0043] Specifically, the slide rail 51 is a linear slide rail 51. An electric drive device is provided inside the slider 52. Under the action of electricity, the electric drive device transmits the motion to the slider 52, thereby enabling the slider 52 to perform a linear motion along the direction of the slide rail 51. The hot air pipe can continuously generate hot air, and the hot air is blown onto the surface of the screen plate, blowing off and drying the desilking liquid on the surface of the screen plate, preventing the desilking liquid from blocking the mesh holes of the screen plate, and improving the accuracy of the detection result. When it is necessary to desilk or blow the screen plate, the telescopic rod 57 is started to drive the toothed plate 58 to move. The toothed plate 58 drives the water spray pipe 55 and the air blowing pipe 54 to rotate through the meshing action with the tooth groove 56, so that the water spraying direction and the air blowing direction are obliquely downward and consistent with the moving direction of the slider 52, improving the desilking effect of the desilking liquid and the air drying effect of the hot air.

[0044] In this embodiment, the adjusting assembly 6 further includes another driving motor, which is fixedly installed at one end of the water spray pipe 55. The output end of the driving motor passes through one end of the water spray pipe 55 through a bearing. A bidirectional screw rod 61 is fixedly installed at the output end of the driving motor, and the other end of the bidirectional screw rod 61 passes through the side wall of the water spray pipe 55 through a bearing. Two round plates 62 are threadedly installed on the outer side of the bidirectional screw rod 61. A rubber ring is sleeved on the outer side of the round plate 62 and contacts the inner wall of the water spray pipe 55. A thin rod 63 is installed inside the water spray pipe 55, and the thin rod 63 passes through the inside of the round plate 62. The round plate 62 contacts the thin rod 63 through another rubber ring.

[0045] Specifically, start the driving motor on one side of the water spray pipe 55, so that the driving motor drives the bidirectional screw rod 61 to rotate. The bidirectional screw rod 61 drives the two round plates 62 to approach or move away from the center position of the water spray pipe 55 by using the threaded action with the round plates 62. The round plates 62 seal the space between the round plates 62 and the water spray pipe 55 through two rubber rings, so that the desilking liquid cannot pass through the round plates 62, and the desilking liquid can only flow between the two round plates 62. As a result, the desilking liquid inside the water spray pipe 55 can only be sprayed out through the nozzles between the two round plates 62, so that the redundant nozzles can be closed according to the width of the screen plate, the amount of water sprayed can be adjusted, and the waste of desilking liquid can be reduced.

[0046] In this embodiment, the water collecting mechanism 3 includes a water storage tank 31, and the water storage tank 31 is opened inside the detection table 1. A plurality of water leakage holes 32 are opened on the inner side of the bottom wall of the detection table 1, and the water leakage holes 32 communicate with the water storage tank 31. Water flowing holes 33 are symmetrically opened on the front and back surfaces of the detection table 1, and the two water flowing holes 33 communicate with the water storage tank 31. Water collecting plates 34 are symmetrically installed on the front and back surfaces of the detection table 1. A control box 12 is fixedly installed on the surface of the water collecting plate 34 close to the front. A group of electric push rods are respectively installed through the bottoms of the two water collecting plates 34. Each group has two electric push rods, and a water blocking plate 35 is fixedly installed at the output end of each group of electric push rods.

[0047] Specifically, before cleaning, the water baffle 35 is lifted to a high position by an electric push rod, so that the wire removing liquid splashing during the cleaning process is blocked to prevent pollution of the ground. The wire removing liquid after cleaning flows back to the inside of the water storage tank 31 through the water leakage holes 32 and the water flow holes 33 for recycling.

[0048] Specific working mode:

[0049] Before placing the screen plate, the moving frame 42 is driven to move left and right by the bidirectional lead screw 41, and the position of the moving frame 42 is adjusted according to the length of the screen plate. When the staff detects a small number of screen plates, the screen plate is placed on the support plate 43 and a downward pressure is applied for fixation; when the staff detects a large number of screen plates, the screen plate is placed on the top of the conveyor belt 22, conveyed by the conveyor belt 22, and the screen plate on the top of the conveyor belt 22 is clamped and flipped 180° by the robotic arm 23 and placed on the support plate 43.

[0050] The screen plate extrusion lower pressing block 44 moves downward. At the same time, the lower pressing block 44 drives the first spring 45 to be compressed and deformed. The lower pressing block 44 drives the inclined side plate 410 to move towards the screen plate by the resistance effect of its own hole and the inclined surface of the inclined side plate 410, so that the inclined side plate 410 moves under the guiding action of the guiding rod 48. At the same time, the inclined side plate 410 drives the second spring 49 to be stretched. The inclined side plate 410 drives the extrusion roller 411 to move, so that the rubber ring on the surface of the extrusion roller 411 contacts the side wall of the screen plate. The rubber ring on the surface of the extrusion roller 411 is stressed and compressed and deformed to clamp the screen plate. Subsequently, the screen plate is photographed and detected by the optical detector 11 to judge whether there are residual etched broken screen wires attached to the surface of the screen plate. If there are screen wires attached, the electric push rod is started to drive the water baffle 35 to rise, and the telescopic rod 57 is started to drive the toothed plate 58 to move, so that the toothed plate 58 drives the water spraying pipe 55 and the air blowing pipe 54 to rotate by the meshing action with the tooth groove 56, so that the nozzle of the water spraying pipe 55 is inclined to the surface of the screen plate and is consistent with the moving direction of the sliding block 52. The sliding block 52 drives the water spraying pipe 55 to clean through the connecting frame 53. After the cleaning is completed, the surface of the screen plate is air-dried by hot air blowing. The optical detector 11 is used again for photographing and detecting. The result of the detection is judged by the central processing unit whether there are residual screen wires. After detecting that there are no residual screen wires, the electric push rod is started to lower the water baffle 35, and the robotic arm 23 is started to grab the screen plate upward and rotate the screen plate to a position perpendicular to the ground. The robotic arm 23 rotates the screen plate 180° and then places it on the clamping mechanism 4 again to detect the other side of the screen plate. After the cleaning and detection of both sides are completed, the next screen plate is detected, so that no residual etched broken screen wires are attached to the surface of the detected screen plate.

[0051] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vision inspection device with a screen printing etching wire removal structure, comprising an inspection table (1), an optical inspection instrument (11) and a feeding mechanism (2). The optical inspection instrument (11) is fixedly installed at the top of the inner wall of the inspection table (1), and the feeding mechanism (2) is fixedly installed on the back of the inspection table (1), characterized in that: An inner side of the detection table (1) is provided with a clamping mechanism (4), and a wire removing mechanism (5) is slidably installed above the clamping mechanism (4); The clamping mechanism (4) is assembled to drive a hypotenuse plate (410) to extrude against the side wall of the screen plate by the downward movement of a pressing block (44) provided at the top, so as to clamp and fix screen plates of different lengths; The pressing block (44) is composed of a section of cylinder and a section of L-shaped hole plate, the position of its hole is located outside the hypotenuse plate (410), and it cooperates with the inclined surface of the hypotenuse plate (410) to drive the hypotenuse plate (410) to move; The wire removing mechanism (5) is assembled to spray and blow the surface of the screen plate obliquely downward, and cooperate with the clamping mechanism (4) to strengthen the fixation of the screen plate, so that the screen plate will not be displaced during the wire removing process; The wire removing mechanism (5) includes a water spray pipe (55), an adjusting assembly (6) is arranged inside the water spray pipe (55), the adjusting assembly (6) is assembled to change the width of the water spraying area of the water spray pipe (55), and the wire removing mechanism (5) further includes a slide rail (51), both ends of the slide rail (51) are fixedly installed on the inner walls of both sides of the detection table (1), a slider (52) is slidably installed on the outer side of the slide rail (51), and a connecting frame (53) is fixedly installed at the bottom of the slider (52); The water spray pipe (55) is fixedly installed at the bottom of the connecting frame (53) through a bearing, and the water spray pipe (55) is located on one side of the air blowing pipe (54). A plurality of tooth grooves (56) are formed at the tops of the water spray pipe (55) and the air blowing pipe (54). A telescopic rod (57) is fixedly installed at the bottom of the connecting frame (53), and the telescopic rod (57) is located at the tops of the air blowing pipe (54) and the water spray pipe (55). A tooth plate (58) is fixedly installed at one end of the telescopic rod (57), and the tooth plate (58) meshes with the tooth grooves (56). The telescopic rod (57) cooperates with the tooth grooves (56) and the tooth plate (58) to rotate the air blowing pipe (54) and the water spray pipe (55); The adjusting assembly (6) includes a driving motor, the driving motor is fixedly installed at one end of the water spray pipe (55), the output end of the driving motor penetrates through one end of the water spray pipe (55) through a bearing, a bidirectional screw rod (61) is fixedly installed at the output end of the driving motor, and the other end of the bidirectional screw rod (61) penetrates through and is installed on the side wall of the water spray pipe (55) through a bearing. Two round plates (62) are threadedly installed on the outer side of the bidirectional screw rod (61).

2. The vision inspection device with a screen etching wire removal structure as described in claim 1, wherein: The clamping mechanism (4) is connected with a bidirectional lead screw (41) through a driving motor on one side of the detection table (1). Two moving frames (42) are threadedly installed on the outer side of the bidirectional lead screw (41). Two supporting plates (43) are respectively fixedly installed at the tops of the two moving frames (42). The pressing block (44) penetrates through and is movably connected to the top of the supporting plate (43). A first spring (45) is fixedly connected to the bottom of the pressing block (44), and the other end of the first spring (45) is fixedly connected to the inside of the moving frame (42). An extrusion roller (411) is installed through a bearing on the side of the hypotenuse plate (410) far away from the inner wall of the detection table (1). A rubber sleeve is wrapped on the outer side of the extrusion roller (411).

3. The vision inspection device with a screen etching and wire removing structure according to claim 2, characterized in that: The top of the support plate (43) is fixedly installed with an N-shaped plate (46). Inner grooves (47) are symmetrically opened on the inner side of the N-shaped plate (46). A guide rod (48) is fixedly installed on the inner side of the inner groove (47). A second spring (49) is fixedly installed on the inner side of the inner groove (47), and the second spring (49) is located outside the guide rod (48). The other end of the second spring (49) is fixedly connected to one side of the bevel plate (410).

4. The vision inspection device with a screen etching and wire removing structure according to claim 1, wherein: The feeding mechanism (2) includes a cross plate (21), and the cross plate (21) is fixedly installed on the back of the inspection table (1). A conveyor belt (22) is installed on the top of the cross plate (21). A robotic arm (23) is slidably installed on the top of the cross plate (21) at the position between the inspection table (1) and the conveyor belt (22).

5. The visual inspection device with a screen etching wire removal structure as described in claim 4, characterized in that: A plurality of nozzles are installed through the bottom of the water spray pipe (55). The water spray pipe (55) removes filaments from the surface of the screen plate fixed by the clamping mechanism (4). A water collection mechanism (3) is arranged inside the inspection table (1), and the water collection mechanism (3) is assembled to block and collect the wire removal liquid sprayed by the wire removal mechanism (5).

6. The vision inspection device with a screen etching and wire removal structure according to claim 5, characterized in that: The bottom of the connecting frame (53) is fixedly installed with a blowing pipe (54) through a bearing. A hot air blower (59) is fixedly installed on the outside of the connecting frame (53). The output end of the hot air blower (59) is installed with an air duct, and the other end of the air duct is installed through one end of the blowing pipe (54). A water pipe (510) is fixedly installed on the outside of the connecting frame (53), and the water pipe (510) is located on the side of the connecting frame (53) away from the hot air blower (59). One end of the water pipe (510) is fixedly installed with a hose (511), and the other end of the hose (511) is installed through the top of the central position of the water spray pipe (55).

7. The vision inspection device with a screen etching and wire removing structure according to claim 1, characterized in that: A rubber ring is sleeved on the outside of the circular plate (62) and contacts the inner wall of the water spray pipe (55). A thin rod (63) is installed inside the water spray pipe (55), and the thin rod (63) penetrates through the inside of the circular plate (62). The circular plate (62) contacts the thin rod (63) through another rubber ring.

8. The vision inspection device with a screen etching and wire removing structure according to claim 5, characterized in that: The water collection mechanism (3) includes a water storage tank (31), and the water storage tank (31) is opened inside the inspection table (1). A plurality of water leakage holes (32) are opened on the inner side of the bottom wall of the inspection table (1), and the water leakage holes (32) communicate with the water storage tank (31). Water flow holes (33) are symmetrically opened on the front and back of the inspection table (1), and the two water flow holes (33) communicate with the water storage tank (31). Water collection plates (34) are symmetrically installed on the front and back of the inspection table (1). A control box (12) is fixedly installed on the surface of the water collection plate (34) close to the front. A group of electric push rods are installed through the bottom of each of the two water collection plates (34). Each group has two electric push rods, and the output ends of each group of electric push rods are fixedly installed with a water blocking plate (35).

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