Digital printing quality monitoring device

Abstract

The utility model relates to a digital printing quality monitoring device which comprises a fixing mechanism, an adjusting mechanism and a monitoring mechanism, the fixing mechanism comprises a fixing column, the adjusting mechanism comprises an adjusting rod, a mounting rod and an adjusting assembly, the adjusting rod is fixed with the fixing column through a bolt, and the fixing column abuts against a groove of the adjusting rod; the mounting rod is transversely fixed to the top of the adjusting rod, the adjusting assembly comprises a screw rod, a motor and two adjusting units, each adjusting unit comprises a moving seat and a pair of infrared sensors, the screw rod is divided into a left half section and a right half section, and threads of the left half section and threads of the right half section of the screw rod are opposite in screwing direction and symmetrical to each other; and the left half section and the right half section of the screw rod are respectively in threaded connection with the moving seats of the two groups of adjusting units. According to the utility model, not only can the quality of post-printing processes such as post-printing code spraying or gold stamping be detected, but also the quality of digital printing of metal printing presswork can be detected, automatic monitoring of the printing quality can be realized only by adopting two pairs of infrared sensors, the cost is lower, and the effect is remarkable.

Description

TECHNICAL FIELD

[0001] The utility model relates to digital printing equipment for iron printing, especially relates to a digital printing quality monitoring device. BACKGROUND

[0002] Digital printing refers to printing technology that computer processed digital information is directly output to paper or other substrates, and the printing technology does not need to make a plate in actual operation, and output information is randomly variable, and the printing technology is more suitable for modern production needs than traditional printing technology.

[0003] In the prior art, the digital printing machine needs to print a specified pattern on a sample sheet in the first use, and then calibrate the nozzle according to the pattern quality, and the pattern quality on the digital printing machine is mainly judged by manual naked eye observation to determine whether the pattern is offset, the detection result accuracy is low, and the printing quality is reduced. There are also visual detection cameras for monitoring printing quality. The visual detection equipment is essentially a kind of detection equipment that converts the target to be taken into an image signal through an image sensor, transmits the image signal to a special image processing system, converts the image signal into a digital signal according to the pixel distribution and brightness, color and other information, the image system performs various operations on these signals to extract the characteristics of the target, and then controls the action of the equipment on site according to the judgment result. Therefore, the digital printing machine with the visual detection equipment is more precise and has a higher cost. For the post-printing code or gold stamping process of the iron printing product that has completed all the color matching, if the visual detection is used, the equipment cost will increase. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is that under the premise of controlling the cost, the automatic detection of the printing quality can be realized, and the utility model provides a digital printing quality monitoring device.

[0005] The utility model discloses a technical scheme that solves its technical problem is adopted: a digital printing quality monitoring device, including fixed establishment, adjusting mechanism and monitoring mechanism, the fixed establishment includes fixed column, the fixed column has the vertical strip -shaped hole on, adjusting mechanism includes adjusting lever, mounting rod and adjusting assembly, adjusting lever's one side has vertical recess, is provided with a plurality of through -holes in recess, the width of recess is slightly greater than the width of fixed column, adjusting lever is fixed with fixed column through bolt, bolt is arranged in through -hole and strip -shaped hole, the recess of fixed column and adjusting lever abuts on, the mounting rod is transversely fixed at the top of adjusting lever, adjusting assembly is installed on mounting rod, adjusting assembly includes screw rod, motor and two sets of adjusting unit, one end of screw rod is connected with motor transmission, and the other end of screw rod is fixed with mounting rod through bearing seat, adjusting unit includes mobile seat and a pair of infrared sensor, mobile seat has mobile hole and limit hole, mobile hole has internal thread, screw rod is arranged in mobile hole of mobile seat and is connected with mobile seat thread, mounting rod is arranged in the limit hole of mobile seat and is connected with mobile seat sliding, the screw rod is divided into left half segment and right half segment, and the thread of screw rod left half segment is opposite and mutually symmetrical with the thread of right half segment, and the left half segment and right half segment of screw rod are respectively connected with the mobile seat thread of two sets of adjusting units, and a pair of infrared sensors of the same adjusting unit are arranged below the mobile seat of the adjusting unit, and a pair of infrared sensors of the same adjusting unit are arranged oppositely.

[0006] Each through -hole in recess is vertically distributed.

[0007] A pair of infrared sensors of the same adjusting unit are arranged oppositely through connecting rod.

[0008] The adjusting lever is provided with a control box, the control box is provided with a signal sending module, and the infrared sensor of the adjusting unit is signal connected with the signal sending module.

[0009] The utility model discloses a digital printing quality monitoring device, in addition to can detect the quality of post -printing process such as post -printing code or gilding, also can be used for detecting the quality of digital printing of iron printing, only adopts two pairs of infrared sensors to realize the automatic monitoring of printing quality, and the cost is lower, and the effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model is further explained in connection with the drawings and examples.

[0011] Figure 1 It is the structure schematic diagram of a digital printing quality monitoring device of the utility model.

[0012] Figure 2 It is the structure schematic diagram of a digital printing quality monitoring device of the utility model after elevating.

[0013] Figure 3 This is a side view of the adjusting rod of a digital printing quality monitoring device according to this utility model.

[0014] In the diagram: 1. Fixed column, 2. Adjusting rod, 2-1. Groove, 2-2. Through hole, 3. Mounting rod, 4. Bolt, 5. Screw, 6. Motor, 7. Bearing seat, 8. Moving seat, 9. Infrared sensor, 10. Connecting rod, 11. Control box. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0016] like Figures 1-2 As shown, this utility model discloses a digital printing quality monitoring device, comprising a fixing mechanism, an adjusting mechanism, and a monitoring mechanism. The fixing mechanism includes a fixing column 1 with a vertical strip hole. The adjusting mechanism includes an adjusting rod 2, a mounting rod 3, and an adjusting assembly. One side of the adjusting rod 2 has a vertical groove 2-1 with several through holes 2-2. The width of the groove 2-1 is slightly larger than the width of the fixing column 1. The adjusting rod 2 is fixed to the fixing column 1 by bolts 4, which pass through the through holes 2-2 and the strip hole. The fixing column 1 abuts against the groove 2-1 of the adjusting rod 2. The width of the groove 2-1 is slightly larger than the width of the fixing column 1, allowing the fixing column 1 to be embedded in the groove 2-1 of the adjusting rod 2. When the adjusting rod 2 is fixed to the fixing column 1 by bolts 4, the fixing column 1 and the adjusting rod 2 are restricted by the groove 2-1 and cannot rotate relative to each other, thus achieving the fixation between the fixing column 1 and the adjusting rod 2 and improving the fixing effect.

[0017] The installation rod 3 is transversely fixed at the top of the adjusting rod 2, and an adjusting assembly is mounted on the installation rod 3, the adjusting assembly comprising a screw rod 5, a motor 6 and two groups of adjusting units, one end of the screw rod 5 is in transmission connection with the motor 6, the other end of the screw rod 5 is fixed with the installation rod 3 through a bearing seat 7, the bearing seat 7 is provided with a bearing, the inner ring of the bearing is fixed with the screw rod 5, and the outer ring of the bearing is fixed with the bearing seat 7. The adjusting unit comprises a moving seat 8 and a pair of infrared sensors 9, the moving seat 8 is provided with a moving hole and a limiting hole, the moving hole is provided with an internal thread, the screw rod 5 is arranged in the moving hole of the moving seat 8 and is in threaded connection with the moving seat 8, the installation rod 3 is arranged in the limiting hole of the moving seat 8 and is in sliding connection with the moving seat 8, the screw rod 5 is divided into a left half and a right half, the threads of the left half and the right half of the screw rod 5 are opposite in rotation direction and are symmetrical to each other, the left half and the right half of the screw rod 5 are respectively in threaded connection with the moving seats 8 of the two groups of adjusting units, and the pair of infrared sensors 9 of the same adjusting unit are arranged below the moving seat 8 of the adjusting unit.

[0018] As shown in Figure 3 , each through hole 2-2 in the groove 2-1 is vertically distributed. As shown in Figures 1-2 , the height of the adjusting rod 2 on the fixed column 1 can be adjusted by replacing the through hole 2-2 with a bolt 4 of different height, so as to realize the height adjustment of the adjusting rod 2. The fixed column 1 is fixed on the digital printing machine, so that the digital printing quality monitoring device of the utility model is fixed with the digital printing machine. In this way, the height of the adjusting rod 2 is adjusted, which is equivalent to adjusting the height of the installation rod 3 thereon, that is, adjusting the height of the two groups of adjusting units, so that the infrared sensors 9 in the two groups of adjusting units can match the height of the tin printing product, so that one of the two infrared sensors 9 in the same adjusting unit is located above the tin printing product, and the other is located below the tin printing product.

[0019] The pair of infrared sensors 9 of the same adjusting unit are arranged opposite to each other through the connecting rod 10.

[0020] The control box 11 is arranged on the adjusting rod 2, and a signal sending module is arranged in the control box 11; the infrared sensor 9 of the adjusting unit is in signal connection with the signal sending module. If the infrared sensor 9 of the same adjusting unit is not blocked, it is indicated that the printing product is offset and is not between the infrared sensor 9. If the infrared sensor 9 of the two adjusting units is blocked and cannot receive the signal, it is indicated that the two side edges of the printing product are between the infrared sensor 9 of the two adjusting units, that is, the two side edges of the printing product are in the normal position and are not offset. The distance between the two adjusting units can be determined according to the maximum offset that can be accepted in practice. If the printing product is offset, one side exceeds the set offset range, that is, it is determined that the printing product is offset, and it can be judged that the printing product is skewed during printing, and the printing quality is determined to be poor, and the signal sending module in the control box 11 sends a signal and alarms.

[0021] The digital printing quality monitoring device of the utility model can be applied to the premise that the two side edges of the printing product are protruded from the conveying belt of the conveying device, so that the detection of the two adjusting units on the two half sections of the screw rod 5 is not interfered by the conveying belt. During detection, the motor 6 drives the screw rod 5 to rotate forward or reversely, so that the two adjusting units on the two half sections of the screw rod 5 can move towards each other or reversely, so as to adjust the distance between the two infrared sensors 9, so as to adapt to the monitoring of printing products with different widths. When the motor 6 rotates, the moving seat 8 connected with the screw rod 5 cannot rotate with the screw rod 5 due to the limitation of the mounting rod 3, so the moving seat 8 moves left and right along the screw rod 5. Since the screw threads of the left and right half sections of the screw rod 5 are opposite and symmetrical, the moving seats 8 of the two adjusting units always move towards each other or reversely, so that the distance between the moving seats 8 of the two adjusting units changes, and the distance between the infrared sensors 9 on the two moving seats 8 changes.

[0022] The digital printing quality monitoring device of the utility model can be applied to the premise that the two side edges of the printing product are protruded from the conveying belt of the conveying device, so that the detection of the two adjusting units on the two half sections of the screw rod 5 is not interfered by the conveying belt. During detection, the motor 6 drives the screw rod 5 to rotate forward or reversely, so that the two adjusting units on the two half sections of the screw rod 5 can move towards each other or reversely, so as to adjust the distance between the two infrared sensors 9, so as to adapt to the monitoring of printing products with different widths. When the motor 6 rotates, the moving seat 8 connected with the screw rod 5 cannot rotate with the screw rod 5 due to the limitation of the mounting rod 3, so the moving seat 8 moves left and right along the screw rod 5. Since the screw threads of the left and right half sections of the screw rod 5 are opposite and symmetrical, the moving seats 8 of the two adjusting units always move towards each other or reversely, so that the distance between the moving seats 8 of the two adjusting units changes, and the distance between the infrared sensors 9 on the two moving seats 8 changes. The digital printing quality monitoring device of the utility model can be applied to the premise that the two side edges of the printing product are protruded from the conveying belt of the conveying device, so that the detection of the two adjusting units on the two half sections of the screw rod 5 is not interfered by the conveying belt. During detection, the motor 6 drives the screw rod 5 to rotate forward or reversely, so that the two adjusting units on the two half sections of the screw rod 5 can move towards each other or reversely, so as to adjust the distance between the two infrared sensors 9, so as to adapt to the monitoring of printing products with different widths. When the motor 6 rotates, the moving seat 8 connected with the screw rod 5 cannot rotate with the screw rod 5 due to the limitation of the mounting rod 3, so the moving seat 8 moves left and right along the screw rod 5. Since the screw threads of the left and right half sections of the screw rod 5 are opposite and symmetrical, the moving seats 8 of the two adjusting units always move towards each other or reversely, so that the distance between the moving seats 8 of the two adjusting units changes, and the distance between the infrared sensors 9 on the two moving seats 8 changes.

[0023] The above is the ideal embodiment according to the present application, and the above description can be changed and modified without departing from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A digital print quality monitoring device, characterized by: The utility model relates to a kind of adjustable fixed mechanism, including fixed mechanism, adjusting mechanism and monitoring mechanism, the fixed mechanism includes fixed column (1), the fixed column (1) has vertical strip hole, the adjusting mechanism includes adjusting rod (2), mounting rod (3) and adjusting assembly, the adjusting rod (2) has vertical recess (2-1) on one side, several through holes (2-2) are arranged in the recess (2-1), the width of the recess (2-1) is slightly greater than the width of fixed column (1), the adjusting rod (2) is fixed with the fixed column (1) by bolt (4), the bolt (4) is arranged in through hole (2-2) and strip hole, the fixed column (1) is abutted with the recess (2-1) of adjusting rod (2);The mounting rod (3) is transversely fixed at the top of adjusting rod (2), and the adjusting assembly is installed on mounting rod (3), and the adjusting assembly includes screw rod (5), motor (6) and two groups of adjusting units, one end of the screw rod (5) is drivingly connected with motor (6), the other end of screw rod (5) is fixed with mounting rod (3) by bearing seat (7), and the adjusting unit includes moving seat (8) and a pair of infrared sensors (9), the moving seat (8) has moving hole and limiting hole, the moving hole has internal thread, the screw rod (5) is arranged in the moving hole of moving seat (8) and is threadedly connected with moving seat (8), the mounting rod (3) is arranged in the limiting hole of moving seat (8) and is slidably connected with moving seat (8), the screw rod (5) is divided into left half and right half, the thread of screw rod (5) left half is opposite and mutually symmetrical with the thread of right half, the left half and the right half of screw rod (5) are respectively threadedly connected with the moving seat (8) of two groups of adjusting units, and a pair of infrared sensors (9) of same adjusting unit is arranged below the moving seat (8) of the adjusting unit, and a pair of infrared sensors (9) of same adjusting unit is arranged oppositely.

2. The digital print quality monitoring device of claim 1, wherein: Each through hole (2-2) in the recess (2-1) is vertically distributed.

3. The digital print quality monitoring device of claim 1, wherein: A pair of infrared sensors (9) of same adjusting unit is arranged oppositely by connecting rod (10).

4. The digital print quality monitoring apparatus of claim 1, wherein: Control box (11) is installed on the adjusting rod (2), signal sending module is arranged in the control box (11), and the infrared sensor (9) of adjusting unit is signal connected with signal sending module.

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