Printing surface online accurate automatic detection equipment

Abstract

The utility model discloses printing surface online precise automatic detection equipment, and relates to the field of printing production, the printing surface online precise automatic detection equipment comprises a workbench, a printing device is installed on the workbench, visual detection equipment is installed on the workbench, the visual detection equipment is located on one side of the printing device, and a control computer is installed on the visual detection equipment. A flattening mechanism is arranged between the printing device and the visual inspection equipment, and a cleaning mechanism is arranged on the side, away from the visual inspection equipment, of the printing device. The printed presswork passes through the flattening mechanism, the flattening mechanism pulls the two sides of the presswork, and then the presswork penetrates through the visual detection equipment, so that the presswork can pass through the visual detection equipment after being completely unfolded, and the situation that wrinkles on the presswork affect detection of the visual detection equipment when passing through the visual detection equipment is reduced; and meanwhile, the quality of a printed product can be detected in real time by utilizing visual detection equipment.

Description

Technical Field

[0001] The present application relates to the field of printing production, and in particular to online precise automatic detection equipment for printing surfaces. Background Art

[0002] Printing is a technology that transfers the ink of text, pictures, photos, anti-counterfeiting manuscripts to the surface of paper, textiles, plastics, leather, PVC, PC and other materials through processes such as plate making, inking and pressurization, so as to batch reproduce the contents of the original manuscripts.

[0003] When a long-format printed matter is printed using a printing press, the long-format rolled printed matter material is generally passed through the printing press for printing, and then the printed matter is rolled up on the other side of the printing press to complete the printing of the long-format printed matter.

[0004] Existing quality inspection of printed materials mainly relies on manual sampling to inspect printed materials that have left the printing press after printing. This inspection method is inefficient and prone to errors. The offline inspection method has a lag and cannot provide real-time feedback on quality problems in the production process. Manual inspection is costly and has unstable inspection accuracy. Utility Model Content

[0005] The purpose of the present application is to solve the problems raised in the above-mentioned background technology that printed products that have left the printing press rely on manual sampling for inspection. This inspection method is inefficient and prone to errors. The offline inspection method has a lag and cannot provide real-time feedback on quality problems in the production process. The manual inspection cost is high and the inspection accuracy is unstable. The present application provides an online precise and automated inspection device for the printed surface.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The invention discloses an online precise automatic inspection device for printed surfaces, comprising a workbench, a printing device is installed on the workbench, a visual inspection device is installed on the workbench, the visual inspection device is located on one side of the printing device, a control computer is installed on the visual inspection device, a flattening mechanism is arranged between the printing device and the visual inspection device, and a cleaning mechanism is arranged on the side of the printing device away from the visual inspection device.

[0008] By adopting the above technical solution, the printed product passes through a flattening mechanism, the flattening mechanism pulls both sides of the printed product, and then the printed product passes through a visual inspection device, and then the printed product is rolled up on a winding roller. When the printed product passes through the visual inspection device, the image acquisition module in the visual inspection device captures a high-definition image of the surface of the printed product passing through in real time, the image processing module preprocesses and extracts features of the acquired image, and then the defect recognition module in the visual inspection device uses a control computer to recognize printing defects in the image, so that the printed product can be fully unfolded and pass through the visual inspection device, reducing the impact of wrinkles on the printed product on the visual inspection device when passing through the visual inspection device, and at the same time, the visual inspection device can be used to detect the quality of the printed product in real time.

[0009] Furthermore, the flattening mechanism includes two support blocks symmetrically fixed on the workbench, a rotating rod is rotatably connected between the two support blocks, two spiral rubber strips are fixed on the rotating rod, and the two spiral rubber strips are facing opposite directions, a rotating motor is fixed on one of the support blocks, the output end of the rotating motor passes through the support block 1 and is fixedly connected to the rotating rod, interference components are arranged on the two support blocks, and limit components are arranged on both sides of the visual inspection equipment.

[0010] By adopting the above technical solution, the printed matter is passed over the rotating rod, and then, under the push of the resistance component, the printed matter is made to resist the spiral rubber strip, and then the rotating rod drives the spiral rubber strip to rotate, so that the printed matter can be fully unfolded when passing through the visual inspection equipment, reducing the possibility of wrinkles on the printed matter affecting the inspection of the visual inspection equipment.

[0011] Furthermore, the resistance assembly comprises a resistance block slidably connected to the supporting block 1, and a resistance roller is rotatably connected to the resistance block.

[0012] By adopting the above technical solution, the resistance block drives the resistance roller to approach the rotating rod, so that the resistance roller is in contact with the printed product, thereby allowing the printed product to contact the tight spiral rubber strip.

[0013] Furthermore, a resistance spring is arranged between the resistance block and the supporting block 1, and both ends of the resistance spring are fixedly connected to the resistance block and the supporting block 1.

[0014] By adopting the above technical solution, when the resistance roller resists against the printed product, the resistance spring pushes the resistance block, so that the resistance roller can remain stable when resisting against the printed product.

[0015] Furthermore, the limiting assembly includes two supporting blocks 2 symmetrically fixed on the workbench, and a limiting roller is arranged between the two supporting blocks 2.

[0016] By adopting the above technical solution, the printed product is allowed to pass under the limiting roller, and the limiting roller is used to limit the printed product, so that the printed product can pass through the visual inspection device in parallel.

[0017] Furthermore, the two support blocks 2 are slidably connected with limit blocks, a limit spring is arranged between the limit block and the support block 2, and both ends of the limit spring are fixedly connected with the support block 2 and the limit block.

[0018] By adopting the above technical solution, the limit spring pushes the limit block, and the limit block drives the limit roller to limit the printed product, so that printed products of different thicknesses can pass under the limit roller conveniently.

[0019] Furthermore, the cleaning mechanism comprises two support blocks three symmetrically fixed on the workbench, a support roller is rotatably connected between the two support blocks three, and a sticky roller is arranged on the support roller.

[0020] By adopting the above technical solution, the printed material is first passed between the adhesive roller and the support roller, so that the adhesive roller can pick up dust on the surface of the printed material to be printed, thereby reducing the influence of dust particles on the printing quality of the printed material.

[0021] Furthermore, two clamping sliders are rotatably connected at both ends of the adhesive roller, the clamping slider is slidably connected to the support block three, a clamping spring is arranged between the clamping slider and the support block three, and both ends of the clamping spring are fixedly connected to the support block three and the clamping slider.

[0022] By adopting the above technical solution, the adhesive roller on the clamping slider is pushed by the clamping spring to move closer to the supporting roller, so that the adhesive roller and the supporting roller can conveniently clamp the printed matter.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In this application, the printed matter is passed over the rotating rod, and then the resistance block drives the resistance roller close to the printed matter under the push of the resistance spring, and the two sides of the printed matter are pressed against the two sides of the printed matter under the push of the resistance roller, and then the printed matter passes under the limit roller, and the limit roller presses the printed matter against the workbench under the push of the limit spring, and then the printed matter passes through the visual inspection device. When the formal printing starts, the printed matter comes out of the printing device, and the rotating motor is started at the same time, and the rotating motor drives the rotating rod to rotate, and the rotating rod drives the threaded rubber strip to rotate, and the threaded rubber strip drives the two sides of the printed matter, so that the printed matter is unfolded to both sides, and then under the restriction of the two limit rollers The printed matter passes horizontally through the visual inspection equipment. The image acquisition module in the visual inspection equipment captures high-definition images of the surface of the printed matter in real time. The image processing module preprocesses and extracts features of the acquired images. Then, the defect recognition module in the visual inspection equipment uses a control computer to recognize printing defects in the image. Then, the control computer controls the printing device on the production line to perform corresponding operations based on the recognition results. This allows the printed matter to be fully unfolded and pass through the visual inspection equipment, reducing the impact of wrinkles on the printed matter when passing through the visual inspection equipment. At the same time, the visual inspection equipment can be used to detect the quality of the printed matter in real time.

[0025] 2. In the present application, before a long printed material is printed, the printed material is first passed between a sticky roller and a supporting roller, and then, under the push of a clamping spring, the sticky roller on the clamping slider is moved toward the supporting roller. When the printed material moves, the printed material drives the sticky roller to move, and the sticky roller picks up dust on the surface of the printed material to be printed. Then, the printed material is printed through a printing device, thereby achieving the purpose of allowing the sticky roller to pick up dust on the surface of the printed material to be printed, thereby reducing the influence of dust particles on the printing quality of the printed material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a first three-dimensional structural schematic diagram of the online precise automatic detection device for the printed surface in the present application;

[0027] Figure 2 It is a second three-dimensional structural schematic diagram of the online precise automatic detection device for the printed surface of the present application;

[0028] Figure 3 This application Figure 1 Enlarged schematic diagram at point A in the middle.

[0029] Description of reference numerals:

[0030] 1. Workbench; 2. Printing device; 3. Visual inspection equipment; 4. Control computer; 5. Flattening mechanism; 51. Support block one; 52. Rotating rod; 53. Spiral rubber strip; 54. Rotating motor; 55. Resistance assembly; 551. Resistance roller; 552. Resistance block; 553. Resistance spring; 56. Limiting assembly; 561. Support block two; 562. Limiting roller; 563. Limiting block; 564. Limiting spring; 6. Cleaning mechanism; 61. Adhesive roller; 62. Support roller; 63. Support block three; 64. Clamping slider; 65. Clamping spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 —3 Provide further details of this application.

[0032] The embodiments of the present application disclose an online precise automatic detection device for a printed surface.

[0033] Reference Figure 1 , Figure 2 and Figure 3 , an online precise automatic inspection device for printing surface comprises a workbench 1, a printing device 2 is installed on the workbench 1, a visual inspection device 3 is installed on the workbench 1, the visual inspection device 3 is located at one side of the printing device 2, a control computer 4 is installed on the visual inspection device 3, a flattening mechanism 5 is arranged between the printing device 2 and the visual inspection device 3, and a cleaning mechanism 6 is arranged on the side of the printing device 2 away from the visual inspection device 3.

[0034] When printing is performed using the printing device 2 on the workbench 1, the printed matter to be printed is first passed through the cleaning mechanism 6, and then passed through the printing device 2. The printing device 2 prints the printed matter that has passed through. The printed matter then passes through the flattening mechanism 5. The flattening mechanism 5 pulls both sides of the printed matter, and then the printed matter passes through the visual inspection device 3. The printed matter is then rolled up on the winding roller. When the printed matter passes through the visual inspection device 3, the image acquisition module in the visual inspection device 3 captures a high-definition image of the surface of the printed matter that has passed through in real time, and the image processing module pre-processes and extracts features from the captured image. Take, and then the defect recognition module in the visual inspection device 3 uses the control computer 4 to identify the printing defects in the image, and then uses the control computer 4 to control the printing device 2 on the production line to perform corresponding operations according to the recognition results, by first passing the printed printed matter through the flattening mechanism 5, allowing the flattening mechanism 5 to pull the two sides of the printed matter, and then passing the printed matter through the visual inspection device 3, so that the printed matter can be fully unfolded and then pass through the visual inspection device 3, thereby reducing the wrinkles on the printed matter when passing through the visual inspection device 3. The impact of the visual inspection device 3 on the detection, and at the same time, the visual inspection device 3 can be used to detect the quality of the printed matter in real time.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The flattening mechanism 5 includes two support blocks 51 symmetrically fixed on the workbench 1, a rotating rod 52 is rotatably connected between the two support blocks 51, two spiral rubber strips 53 are fixed on the rotating rod 52, and the two spiral rubber strips 53 face opposite directions. A rotating motor 54 is fixed on one of the support blocks 51, and the output end of the rotating motor 54 passes through the support block 51 and is fixedly connected to the rotating rod 52. Interference components 55 are provided on the two support blocks 51, and limit components 56 are provided on both sides of the visual inspection device 3.

[0036] In addition, the resistance assembly 55 includes a resistance block 552 slidably connected to the supporting block 1 51 , and a resistance roller 551 is rotatably connected to the resistance block 552 .

[0037] In addition, a resistance spring 553 is provided between the resistance block 552 and the supporting block 1 51 , and both ends of the resistance spring 553 are fixedly connected to the resistance block 552 and the supporting block 1 51 .

[0038] Furthermore, the limiting assembly 56 includes two supporting blocks 561 symmetrically fixed on the workbench 1 , and a limiting roller 562 is arranged between the two supporting blocks 561 .

[0039] Moreover, the two second support blocks 561 are slidably connected to the limit blocks 563 , and a limit spring 564 is arranged between the limit block 563 and the second support block 561 . Both ends of the limit spring 564 are fixedly connected to the second support block 561 and the limit block 563 .

[0040] After the long printed product passes through the printing device 2, the printed product is allowed to pass over the rotating rod 52, and then, under the push of the resistance spring 553, the resistance block 552 drives the resistance roller 551 close to the printed product. Under the push of the resistance roller 551, the two sides of the printed product are allowed to contact the two sides of the printed product. Then, the printed product passes under the limit roller 562. Under the push of the limit spring 564, the limit roller 562 makes the printed product contact the workbench 1. Then, the printed product passes through the visual inspection device 3. When the formal printing starts, the printed product comes out of the printing device 2, and the rotating motor is started at the same time. Machine 54, the rotating motor 54 drives the rotating rod 52 to rotate, the rotating rod 52 drives the threaded rubber strip to rotate, the threaded rubber strip drives the two sides of the printed matter, so that the printed matter is unfolded to the two sides, and then passes through the visual inspection device 3 horizontally under the restriction of the two limiting rollers 562. When the long printed matter passes through the visual inspection device 3, the printed matter is made to contact the spiral rubber strip 53 on the rotating rod 52, so that the printed matter is pulled to the two sides, so that the printed matter can be fully unfolded when passing through the visual inspection device 3, thereby reducing the possibility of wrinkles on the printed matter affecting the inspection of the visual inspection device 3.

[0041] Reference Figure 1 and Figure 2 The cleaning mechanism 6 includes two support blocks 63 symmetrically fixed on the workbench 1 , a support roller 62 is rotatably connected between the two support blocks 63 , and a sticky roller 61 is arranged on the support roller 62 .

[0042] In addition, two clamping sliders 64 are rotatably connected at both ends of the adhesive roller 61, and the clamping sliders 64 are slidably connected to the support block three 63. A clamping spring 65 is provided between the clamping sliders 64 and the support block three 63, and both ends of the clamping spring 65 are fixedly connected to the support block three 63 and the clamping slider 64.

[0043] Before a long piece of printed material is printed, the printed material is first passed between the adhesive roller 61 and the support roller 62, and then, under the push of the clamping spring 65, the adhesive roller 61 on the clamping slider 64 is moved toward the support roller 62. When the printed material moves, the printed material drives the adhesive roller 61 to move, and the adhesive roller 61 picks up the dust on the surface of the printed material to be printed. Then the printed material is printed through the printing device 2. By allowing the printed material to pass between the adhesive roller 61 and the support roller 62 first, the adhesive roller 61 can pick up the dust on the surface of the printed material to be printed, thereby reducing the influence of dust particles on the printing quality of the printed material.

[0044] Working principle: Before the long printed material is printed, the printed material is first passed between the adhesive roller 61 and the support roller 62, and then, under the push of the clamping spring 65, the adhesive roller 61 on the clamping slider 64 is moved toward the support roller 62. When the printed material moves, the printed material drives the adhesive roller 61 to move, and the adhesive roller 61 picks up the dust on the surface of the printed material to be printed, and then the printed material passes through the printing device 2 for printing. After the long printed material passes through the printing device 2, the printed material is passed over the rotating rod 52, and then, under the push of the resistance spring 553, the resistance block 552 drives the resistance roller 551 close to the printed material. Under the push of the resistance roller 551, the two sides of the printed material are allowed to resist against the two sides of the printed material, and then the printed material passes under the limit roller 562. Under the push of the limit spring 564, The limiting roller 562 is allowed to press the printed matter against the workbench 1, and then the printed matter passes through the visual inspection device 3. When the formal printing starts, the printed matter comes out of the printing device 2, and the rotating motor 54 is started at the same time. The rotating motor 54 drives the rotating rod 52 to rotate, and the rotating rod 52 drives the threaded rubber strip to rotate. The threaded rubber strip drives the two sides of the printed matter to allow the printed matter to unfold to both sides, and then pass through the visual inspection device 3 horizontally under the restriction of the two limiting rollers 562. The image acquisition module in the visual inspection device 3 captures high-definition images of the surface of the printed matter passing by in real time, and the image processing module pre-processes and extracts features of the acquired images. Then, the defect recognition module in the visual inspection device 3 uses the control computer 4 to identify printing defects in the image, and then uses the control computer 4 to control the printing device 2 on the production line to perform corresponding operations according to the recognition results.

Claims

1. An online precise automatic inspection device for a printed surface, comprising a workbench (1), characterized in that: A printing device (2) is installed on the workbench (1), a visual inspection device (3) is installed on the workbench (1), the visual inspection device (3) is located on one side of the printing device (2), a control computer (4) is installed on the visual inspection device (3), a flattening mechanism (5) is arranged between the printing device (2) and the visual inspection device (3), and a cleaning mechanism (6) is arranged on the side of the printing device (2) away from the visual inspection device (3).

2. The printing surface online precise automatic detection equipment according to claim 1, characterized in that: The flattening mechanism (5) comprises two support blocks (51) symmetrically fixed on the workbench (1); a rotating rod (52) is rotatably connected between the two support blocks (51); two spiral rubber strips (53) are fixed on the rotating rod (52); the two spiral rubber strips (53) face in opposite directions; a rotating motor (54) is fixed on one of the support blocks (51); the output end of the rotating motor (54) passes through the support block (51) and is fixedly connected to the rotating rod (52); a resisting assembly (55) is provided on both support blocks (51); and limit assemblies (56) are provided on both sides of the visual inspection device (3).

3. The printing surface online precise automatic detection device according to claim 2 is characterized by: The resistance assembly (55) comprises a resistance block (552) slidably connected to the first support block (51), and a resistance roller (551) is rotatably connected to the resistance block (552).

4. The printing surface online precise automatic detection device according to claim 3 is characterized by: A resistance spring (553) is provided between the resistance block (552) and the first supporting block (51), and both ends of the resistance spring (553) are fixedly connected to the resistance block (552) and the first supporting block (51).

5. The printing surface online precise automatic detection device according to claim 2, characterized in that: The limiting assembly (56) comprises two supporting blocks (561) symmetrically fixed on the workbench (1), and a limiting roller (562) is arranged between the two supporting blocks (561).

6. The printing surface online precise automatic detection device according to claim 5, characterized in that: The two support blocks (561) are slidably connected to limit blocks (563), a limit spring (564) is arranged between the limit block (563) and the support block (561), and both ends of the limit spring (564) are fixedly connected to the support block (561) and the limit block (563).

7. The printing surface online precise automatic detection device according to claim 1, characterized in that: The cleaning mechanism (6) comprises two support blocks (63) symmetrically fixed on the workbench (1), a support roller (62) being rotatably connected between the two support blocks (63), and a sticky roller (61) being arranged on the support roller (62).

8. The printing surface online precise automatic detection device according to claim 7, characterized in that: Two clamping sliders (64) are rotatably connected at both ends of the adhesive roller (61), and the clamping slider (64) is slidably connected to the support block three (63). A clamping spring (65) is provided between the clamping slider (64) and the support block three (63), and both ends of the clamping spring (65) are fixedly connected to the support block three (63) and the clamping slider (64).

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