Through printing detection device

Abstract

The utility model relates to a through printing detection device, which relates to the technical field of printed matter detection devices and comprises a conveying belt and a roller driving the conveying belt to convey printed matter, a support is erected above the conveying belt, a visual detection assembly is installed on the support, and the printed matter is conveyed to the position below the visual detection assembly along the conveying belt. The camera is used for shooting, and the main control computer is used for contrastive analysis; baffles are arranged on the two sides of the front section of the conveying belt, a pressing assembly is installed between the two baffles, the presswork is pressed through the pressing assembly, a pressing strip and a pressing wheel mechanism are matched to enable the presswork to be in a flattened state when the presswork is conveyed to the position below the visual detection assembly along the conveying belt, and the through printing detection effect is guaranteed. And the swing wheel disc is arranged at the rear section of the conveying belt, when the printed matter with through printing passes, the swing wheel disc rotates to store the printed matter into the storage box, rapid detection is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of printing inspection devices, and in particular to a missing print detection device. Background Technology

[0002] When printing on the surfaces of paper, cardboard, plastics, textiles, etc., issues such as poor ink distribution, misalignment, or machine malfunction may occur, resulting in missed prints or shallow prints, which can affect production quality.

[0003] In existing technologies, this problem is solved manually or by detection devices. Manually picking out and recycling printed materials with missing prints is inefficient, time-consuming, and labor-intensive. The workload is heavy for manual workers during high-speed conveyor inspection. When a detection device detects a missing print, the conveyor is paused and the manual worker is reminded to recycle it, which also affects production efficiency. At the same time, during the process of conveying printed materials to the detection device, the printed materials fold and overlap on the conveyor belt, affecting the subsequent inspection process. Utility Model Content

[0004] In order to improve the problem of missing print detection in the above-mentioned background art, the present invention provides a missing print detection device.

[0005] The missing print detection device provided by this utility model adopts the following technical solution:

[0006] A stencil printing detection device includes a conveyor belt and rollers that drive the conveyor belt to transport printed materials. A support is erected above the conveyor belt and a vision inspection component is installed on the support. The vision inspection component is communicatively connected to a main control unit installed on the outside of the support. Baffles are provided on both sides of the front section of the conveyor belt, and a pressing component is installed between the two baffles to press the printed materials. A swing wheel is provided at the rear section of the conveyor belt.

[0007] Preferably, the clamping assembly includes multiple crossbars connected between two baffles, each crossbar having a mounting block in its middle section, the bottom of the mounting block being connected to a pressure strip which is positioned above the conveyor belt along the conveying direction, and a pressure roller mechanism being provided on the crossbars away from the visual inspection assembly.

[0008] Preferably, the pressure roller mechanism includes a rubber wheel and a spring block sleeved on a crossbar away from the visual inspection component. The spring block has a spring inside, and the spring is sleeved on the outside of the support rod. The lower end of the support rod extends and is movably connected to the rubber wheel. The outer ring of the rubber wheel is provided with a wear-resistant rubber layer. By setting the spring block and the wear-resistant rubber layer, the pressure roller mechanism is prevented from causing indentations and wear on the surface of the printed matter during the pressing and flattening process, which would affect subsequent inspection.

[0009] Preferably, the balance wheel disk includes a housing and a balance wheel rotatably disposed inside the housing. The balance wheel has multiple parallel rotating shafts inside, and the upper edge of the rotating shafts protrudes from the upper surface of the balance wheel. The balance wheel is sleeved and fixed on the output shaft of a rotary motor, and the rotary motor is communicatively connected to the main controller. A storage box is provided on one side of the balance wheel disk.

[0010] Preferably, the visual inspection component includes an inspection camera and a lighting lamp, wherein a camera is movably disposed at the lower end of the inspection camera and the receiving end of the camera is aligned with the printed matter conveyed along the conveyor belt.

[0011] In summary, this utility model has the following beneficial technical effects:

[0012] 1. Printed materials are pressed by the pressing component and conveyed along the conveyor belt to the area below the vision inspection component. The camera captures images and the main control unit performs comparative analysis. When a missing print passes by, the swing wheel rotates to store the print in the storage box. There is no need to stop the conveyor, which replaces manual labor to achieve rapid inspection and improves production efficiency.

[0013] 2. By setting up a pressing component, the pressure bar and pressure roller mechanism work together to make the printed matter flat when it is transported along the conveyor belt to the bottom of the vision inspection component, so as to ensure the effect of missing print detection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a printing omission detection device according to an embodiment of the present invention;

[0015] Figure 2 This is a side sectional view of the balance wheel disk according to an embodiment of the present invention;

[0016] Figure 3 This is a side sectional view of the pressure roller mechanism according to an embodiment of the present utility model;

[0017] Figure 4 This is a side view of the visual inspection component according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1. Conveyor belt; 2. Printed material; 3. Roller; 4. Support; 5. Vision inspection component; 6. Main control unit; 7. Baffle; 8. Pressing component; 9. Swing wheel; 10. Crossbar; 11. Pressure bar; 12. Pressure roller mechanism; 13. Mounting block; 14. Inspection camera; 15. Illumination lamp; 16. Rubber wheel; 17. Spring block; 18. Spring; 19. Support rod; 20. Wear-resistant rubber layer; 21. Housing; 22. Swing wheel; 23. Rotating shaft; 24. Rotary motor; 25. Storage box; 26. Camera. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0020] This utility model discloses a printing omission detection device.

[0021] Reference Figure 1 The system includes a conveyor belt 1 and rollers 3 that drive the conveyor belt 1 to transport printed materials 2. A support 4 is erected above the conveyor belt 1 and a vision inspection component 5 is installed on the support 4. The vision inspection component 5 is connected to a main control unit 6 installed on the outside of the support 4. Baffles 7 are provided on both sides of the front section of the conveyor belt 1. A pressing component 8 is installed between the two baffles 7 and presses the printed materials 2 through the pressing component 8. Limiting blocks are provided on the inner side of the baffles 7 to limit the position of the printed materials 2 on the conveyor belt 1 so that when the printed materials 2 pass under the vision inspection component 5, they are located in the middle position of the conveyor belt 1. A swing wheel 9 is provided at the rear section of the conveyor belt 1.

[0022] Reference Figure 1 , Figure 3 The pressing assembly 8 includes multiple crossbars 10 connected between two baffles 7. Each crossbar 10 has a mounting block 13 in the middle section. The bottom end of the mounting block 13 is connected to a pressure strip 11, and the pressure strip 11 is positioned above the conveyor belt 1 along the conveying direction of the conveyor belt 1. A pressure roller mechanism 12 is provided on the crossbar 10 away from the visual inspection assembly 5.

[0023] Reference Figure 1 , Figure 3 The pressure roller mechanism 12 includes a rubber wheel 16 and a spring block 17 sleeved on a crossbar 10 away from the visual inspection component 5. The spring block 17 has a spring 18 inside, which is sleeved on the outside of the support rod 19. The lower end of the support rod 19 extends and is movably connected to the rubber wheel 16. The outer ring of the rubber wheel 16 is provided with a wear-resistant rubber layer 20. When the rubber wheel 16 contacts the printed material 2 with a thickness, the spring 18 is compressed, and the rubber wheel 16 is slightly lifted upward. By setting the spring block 17 and the wear-resistant rubber layer 20, the pressure roller mechanism 12 is prevented from causing indentations and wear on the surface of the printed material 2 during the process of pressing and flattening the printed material 2, which would affect subsequent inspection.

[0024] Reference Figure 1 , Figure 2 The balance wheel 9 includes a housing 21 and a balance wheel 22 rotatably disposed inside the housing 21. The balance wheel 22 has multiple parallel rotating shafts 23 inside, and the upper edge of the rotating shafts 23 protrudes from the upper surface of the balance wheel 22. The balance wheel 22 is sleeved and fixed on the output shaft of the rotary motor 24, and the rotary motor 24 is communicatively connected to the main controller 6. A storage box 25 is provided on one side of the balance wheel 9 to collect the missing printed materials.

[0025] Reference Figure 1 , Figure 4The visual inspection component 5 includes an inspection camera 14 and an illumination lamp 15. A camera 26 is movably mounted on the lower end of the inspection camera 14, and the receiving end of the camera 26 is aimed at the printed matter 2 being conveyed along the conveyor belt 1. The camera 26 is a universal camera, which can rotate 360° to adapt to the detection of missing prints on the printed matter 2 at different positions and angles. When the camera 26 at the lower end of the inspection camera 14 captures the printed matter 2, it transmits the image information to the image analysis device inside the main control unit 6. The image analysis device compares the image information, detects the printed matter, and outputs an electrical signal to control the rotary motor 24 to drive the swing wheel 22 to rotate. Printed matter 2 without missing prints passes through normally, while printed matter 2 with missing prints is conveyed to the storage box 25.

[0026] The implementation principle of the missing print detection device in this embodiment of the utility model is as follows: the printed matter 2 is conveyed along the conveyor belt 1, the pressure strip 11 is set above the printed matter 2 along the conveyor belt 1 to prevent the printed matter 2 from folding and overlapping during the conveying process, the pressure roller mechanism 12 flattens the printed matter 2 to be detected, the printed matter 2 passes under the visual detection component 5, the camera 26 at the lower end of the detection camera 14 captures the printed matter 2 and transmits the image information to the main control unit 6, the main control unit 6 controls the rotary motor 24 to drive the swing wheel 22 to rotate, the printed matter 2 without missing prints passes normally, while the printed matter 2 with missing prints is conveyed to the storage box 25.

[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A printing omission detection device, characterized in that: The conveyor belt (1) includes a conveyor belt (1) and a roller (3) that drives the conveyor belt (1) to transport printed materials (2). A support (4) is erected above the conveyor belt (1) and a vision inspection component (5) is installed on the support (4). The vision inspection component (5) is connected to a main control unit (6) installed on the outside of the support (4). Baffles (7) are provided on both sides of the front section of the conveyor belt (1). A pressing component (8) is installed between the two baffles (7) and the printed materials (2) are pressed by the pressing component (8). A swing wheel (9) is provided at the rear section of the conveyor belt (1).

2. The printing omission detection device according to claim 1, characterized in that: The pressing assembly (8) includes multiple crossbars (10) connected between two baffles (7). Each crossbar (10) has a mounting block (13) in the middle section. The bottom end of the mounting block (13) is connected to a pressure strip (11), and the pressure strip (11) is set above the conveyor belt (1) along the conveying direction of the conveyor belt (1). A pressure roller mechanism (12) is set on the crossbar (10) away from the visual inspection assembly (5).

3. The printing omission detection device according to claim 2, characterized in that: The pressure wheel mechanism (12) includes a rubber wheel (16) and a spring block (17) sleeved on a crossbar (10) away from the visual inspection component (5). The spring block (17) has a spring (18) inside. The spring (18) is sleeved on the outside of the support rod (19). The lower end of the support rod (19) extends and is movably connected to the rubber wheel (16). The outer ring of the rubber wheel (16) is provided with a wear-resistant rubber layer (20).

4. The printing omission detection device according to claim 1, characterized in that: The balance wheel disk (9) includes a housing (21) and a balance wheel (22) rotatably disposed inside the housing (21). The balance wheel (22) has multiple parallel rotating shafts (23) inside, and the upper edge of the rotating shafts (23) protrudes from the upper surface of the balance wheel (22). The balance wheel (22) is sleeved and fixed on the output shaft of the rotary motor (24), and the rotary motor (24) is communicatively connected to the main controller (6). A storage box (25) is provided on one side of the balance wheel disk (9).

5. The printing omission detection device according to claim 1, characterized in that: The visual inspection component (5) includes an inspection camera (14) and an illumination lamp (15). The lower end of the inspection camera (14) is movably equipped with a camera (26) and the receiving end of the camera (26) is aligned with the printed matter (2) being conveyed along the conveyor belt (1).

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