Color correcting device of corrugated carton printing machine

Abstract

The utility model discloses a color correction device of a corrugated carton printing machine in the technical field of corrugated carton printing, which comprises a correction bin, a standard color plate and a printing sample sheet plate are arranged in the correction bin, and a clamping mechanism is arranged behind the upper ends of the standard color plate and the printing sample sheet plate. The upper portion and the lower portion of the standard color plate and the upper portion and the lower portion of the printing sample sheet plate are each provided with a regulation and control mechanism, the first clamping plate is located on the outer side of the printing sample sheet plate, and the color correction device of the corrugated carton printing machine is composed of a correction bin, a clamping mechanism and the regulation and control mechanisms. Meanwhile, variable comparison operation is carried out in cooperation with light changes, the clamping mechanism directly fixes the standard color plate and the printing specimen plate, rapid comparison operation is convenient to carry out, the stability and accuracy of calibration are effectively improved, the standard color plate and the printing specimen plate can be turned over under driving of the clamping mechanism, and the calibration efficiency is improved. Therefore, conversion operation between sensor calibration and human eye calibration is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box printing technology, specifically a color calibration device for a corrugated cardboard box printing machine. Background Technology

[0002] Corrugated cardboard boxes are packaging containers made from corrugated cardboard. They are widely used for transport packaging and sales packaging of various products. Corrugated cardboard boxes are mainly made of corrugated cardboard, which is composed of three or more layers of paper: face paper, corrugated core paper, and backing paper. The corrugated shape in the middle of the cardboard enhances its elasticity and compressive strength. A corrugated cardboard box printing machine is a mechanical device specifically designed for printing on corrugated cardboard. It can print various patterns, text, and logos on the surface of the box to meet the needs of packaging and brand promotion. Color proofing is the process of accurately matching and confirming colors before printing to ensure that the printed product colors match the design intent.

[0003] Patent application number CN202022106615.6 discloses a corrugated carton printing machine, the structure of which includes: a main circuit chamber, a working indicator light, a printing machine body, an anilox roller, a conveying device, and a pigment tube. The main circuit chamber is installed on the right side of the printing machine body, and the working indicator light is installed on the top left side of the printing machine body. The anilox roller is installed in the middle of the front wall of the printing press body, the ink tube is installed below the working indicator light, and the conveying device is installed below the anilox roller and fixedly connected to the printing press body. This utility model adds an electric conveyor belt and a stacking area to the original conveying device. It eliminates the need for manual placement and pushing of cartons one by one into the printing press. It only requires stacking a sufficient number of cartons on the stacking table, adjusting the height of the baffle according to the thickness of the cartons, and then conveying them to the electric conveyor belt through two sets of conveyor wheels inside the stacking table. The electric conveyor belt then feeds the cartons into the printing press. This method is highly efficient and avoids hard printing errors caused by skewed cartons. Based on the above patent search and combined with the existing corrugated carton printing press technology, it was found that due to factors such as uneven ink transfer and printing pressure fluctuations during the printing process, there are certain deviations in color matching, especially during color proofing operations, where proofing efficiency is low. Utility Model Content

[0004] The purpose of this invention is to provide a color calibration device for a corrugated cardboard box printing machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a color calibration device for a corrugated cardboard box printing machine, comprising a calibration chamber, wherein a standard color plate and a printing sample plate are disposed inside the calibration chamber, a clamping mechanism is disposed at the upper rear of the standard color plate and the printing sample plate, and an adjustment mechanism is disposed on both the upper and lower sides of the standard color plate and the printing sample plate, the clamping mechanism comprising a first clamping plate located outside the printing sample plate, a second clamping plate disposed on the left side of the first clamping plate, the second clamping plate located outside the standard color plate, and the adjustment mechanism comprising a mounting base, wherein a spectral sensor is fixedly mounted on the upper end of the mounting base, the spectral sensor being located below the standard color plate and the printing sample plate.

[0006] Optionally, the clamping mechanism further includes a motor bracket, a drive motor, a drive gear, a first bearing ring, a first rotating rod, a first transmission gear, a first limiting screw, a second bearing ring, a second rotating rod, a second transmission gear, and a second limiting screw, with the motor bracket fixedly installed on the inner wall of the calibration chamber.

[0007] Optionally, a drive motor is fixedly mounted on the motor bracket, a drive gear is fixedly mounted on the transmission end of the drive motor, and a first transmission gear is provided on the right side of the drive gear.

[0008] Optionally, the first transmission gear meshes with the drive gear, a first rotating rod is fixedly installed in the middle of the first transmission gear, and a first bearing ring is provided behind the first rotating rod.

[0009] Optionally, a second transmission gear is provided on the left side of the drive gear, the second transmission gear meshes with the drive gear, a second rotating rod is fixedly installed in the middle of the second transmission gear, and a second bearing ring is provided behind the second rotating rod.

[0010] Optionally, a first limiting screw is installed at the upper end of the first clamping plate, and a second limiting screw is installed at the upper end of the second clamping plate.

[0011] Optionally, the control mechanism further includes a top cover plate, a glass tank, a lamp holder, a lighting lamp, and an electrical control chamber. The top cover plate is fixedly installed at the upper end of the calibration chamber, and the electrical control chamber is fixedly installed at the bottom inside the calibration chamber.

[0012] Optionally, a glass groove is provided in the middle of the upper cover plate, and a lamp holder is fixedly installed on the inner wall of the upper cover plate, and a lighting lamp is fixedly installed on the lamp holder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, a clamping mechanism is provided. The clamping mechanism precisely fixes the standard color plate and the printing sample plate through the first clamping plate and the second clamping plate, ensuring the precise alignment of the two positions during the color calibration process, thereby improving the comparison accuracy. The drive motor, drive gear, first transmission gear and second transmission gear in the clamping mechanism work together to make the standard color plate and the printing sample plate easy to flip, which facilitates switching between sensor calibration and human eye calibration. Through the motor-driven gear and bearing ring and other components, the clamping mechanism can ensure that the color plate and sample plate maintain stability during the flipping process, while ensuring the accuracy of repeated positioning.

[0015] 2. In this utility model, an adjustment mechanism is provided. The spectral sensor can accurately measure the color data of the standard color plate and the printed sample, providing high-precision data support for automatic calibration. The adjustable light (warm and cool light) provided by the lighting lamp helps users to more accurately identify color differences visually, thereby improving the accuracy of human eye calibration. Attached Figure Description

[0016] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model from a frontal view.

[0019] Figure 4 This is a three-dimensional sectional view of the structure of this utility model. Figure 1 ;

[0020] Figure 5 This is a three-dimensional sectional view of the structure of this utility model. Figure 2 ;

[0021] Figure 6 This is a three-dimensional sectional view of the structure of this utility model. Figure 3 .

[0022] In the diagram: 1. Sample chamber; 2. Standard color plate; 3. Printed sample plate; 4. Clamping mechanism; 401. Motor bracket; 402. Drive motor; 403. Drive gear; 404. First bearing ring; 405. First rotating rod; 406. First transmission gear; 407. First clamping plate; 408. First limiting screw; 409. Second bearing ring; 410. Second rotating rod; 411. Second transmission gear; 412. Second clamping plate; 413. Second limiting screw; 5. Control mechanism; 501. Top cover plate; 502. Glass tank; 503. Lamp holder; 504. Lighting lamp; 505. Mounting base; 506. Spectrum sensor; 507. Electrical control chamber. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6In this embodiment of the present invention, a color calibration device for a corrugated cardboard box printing machine includes a calibration chamber 1. The calibration chamber 1 contains a standard color plate 2 and a printing sample plate 3. A clamping mechanism 4 is located behind the upper end of the standard color plate 2 and the printing sample plate 3. Adjustment mechanisms 5 are located on both the upper and lower sides of the standard color plate 2 and the printing sample plate 3. The clamping mechanism 4 includes a first clamping plate 407 located outside the printing sample plate 3. A second clamping plate 412 is located to the left of the first clamping plate 407, located outside the standard color plate 2. The clamping mechanism 4 also includes a motor bracket 401, a drive motor 402, a drive gear 403, a first bearing ring 404, a first rotating rod 405, and a first transmission... The sample chamber 1 comprises a drive gear 406, a first limiting screw 408, a second bearing ring 409, a second rotating rod 410, a second transmission gear 411, and a second limiting screw 413. A motor bracket 401 is fixedly installed on the inner wall of the sample chamber 1. A drive motor 402 is fixedly installed on the motor bracket 401. A drive gear 403 is fixedly installed on the transmission end of the drive motor 402. A first transmission gear 406 is located on the right side of the drive gear 403, and the first transmission gear 406 meshes with the drive gear 403. A first rotating rod 405 is fixedly installed in the middle of the first transmission gear 406. A first bearing ring 404 is located behind the first rotating rod 405. A second transmission gear 411 is located on the left side of the drive gear 403. The second transmission gear 411 meshes with the drive gear 403. A second rotating rod 410 is fixedly installed in the middle of the second transmission gear 411, and a second bearing ring 409 is provided behind the second rotating rod 410. A first limiting screw 408 is installed at the upper end of the first clamping plate 407, and a second limiting screw 413 is installed at the upper end of the second clamping plate 412. The motor bracket 401 provides a stable mounting platform for the drive motor 402, ensuring the stability and accuracy of the drive motor 402 during operation. As a power source, the drive motor 402 improves the operating efficiency and repeatability of the clamping mechanism 4 by precisely controlling the flipping action, ensuring the consistency and accuracy of the calibration. The drive gear 403 and the first transmission gear 403 mesh with each other. Gear 406 and second transmission gear 411 form a precision transmission system that not only ensures the smooth flipping of color swatches and samples, but also achieves precise control of flipping speed and angle through gear ratio design. First rotating rod 405 and second rotating rod 410, as key components for power transmission, ensure stability and reliability during flipping operations. First clamping plate 407 and second clamping plate 412 enable color swatches and samples to be quickly and firmly fixed, facilitating rapid replacement, while ensuring accurate positioning during flipping. First limiting screw 408 and second limiting screw 413 provide additional fixing and positioning functions, ensuring the correct position of color swatches and samples during proofreading and preventing displacement and skewing.

[0027] The control mechanism 5 includes a mounting base 505, on the upper end of which a spectral sensor 506 is fixedly mounted. The spectral sensor 506 is located below the standard color plate 2 and the printing sample plate 3. The control mechanism 5 also includes a top cover plate 501, a glass tank 502, a lamp holder 503, a lighting lamp 504, and an electrical control compartment 507. The top cover plate 501 is fixedly mounted on the upper end of the calibration compartment 1, and the electrical control compartment 507 is fixedly mounted on the bottom end inside the calibration compartment 1. A glass tank 502 is provided in the middle of the top cover plate 501, and a lamp holder 503 is fixedly mounted on the inner wall of the top cover plate 501. A fixed lighting lamp 504 is installed; the top cover 501 provides a certain degree of isolation to avoid the influence of the external environment on color detection; the glass slot 502 provides a stable installation position for the transparent glass, providing users with a clean and transparent observation window; the lighting of the lamp holder 503 and the lighting lamp 504 can be precisely controlled to provide users with the necessary lighting conditions, thereby optimizing the environment for color comparison; the spectral sensor 506 is the core of automatic color calibration, which can detect the color data of the color swatch and sample, providing real-time feedback for the printing process and ensuring color consistency.

[0028] The working principle of this utility model is as follows: The color calibration device for this corrugated carton printing machine consists of a calibration chamber 1, a clamping mechanism 4, and an adjustment mechanism 5. Before using this color calibration device, the drive motor 402, spectral sensor 506, lighting lamp 504, and electrical control chamber 507 need to be pre-energized and connected to the control terminal. When using this color calibration device, firstly, the standard color plate 2 and the printing sample plate 3 are placed on the clamping mechanism 4, and the first limit screw 408 and the second limit screw 413 are tightened to fix the standard color plate 2 on the second clamping plate 412 and the printing sample plate 3 on the first clamping plate 407. This achieves the effect of positioning the standard color plate 2 and the printing sample plate 3. At this time, the user can compare and observe with the naked eye, and turn on the lighting lamp 504 to adjust the warm and cool colors to obtain variable comparison data. To improve the accuracy of visual observation, the clamping mechanism 4 is then activated, and the drive motor 402 drives the drive gear 403 to rotate, thereby transmitting the first transmission gear 406 and the second transmission gear 411, causing the standard color plate 2 and the printing sample plate 3 to flip. At this time, the spectral sensor 506 detects the standard color plate 2 and the printing sample plate 3 to perform a calibration operation. In summary, the color calibration device of this corrugated carton printing machine adopts a dual calibration method of sensor calibration and physical calibration, and also performs variable comparison operation in conjunction with changes in lighting. The clamping mechanism 4 directly fixes the standard color plate 2 and the printing sample plate 3, which facilitates rapid comparison operation and effectively improves the stability and accuracy of calibration. Furthermore, the standard color plate 2 and the printing sample plate 3 can be flipped under the drive of the clamping mechanism 4, which facilitates the switching operation between sensor calibration and human eye calibration.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A color proofing device of a corrugated carton printing machine, comprising a proofing bin (1), the inside of the proofing bin (1) is provided with a standard color plate (2) and a printing sample plate (3), characterized in that: The standard color plate (2) and the printing sample plate (3) are provided with clamping mechanisms (4) at the upper rear ends, and the standard color plate (2) and the printing sample plate (3) are provided with regulating mechanisms (5) at the upper and lower two sides, the clamping mechanism (4) comprises a first clamping plate (407), the first clamping plate (407) is located outside the printing sample plate (3), a second clamping plate (412) is arranged at the left side of the first clamping plate (407), the second clamping plate (412) is located outside the standard color plate (2), the regulating mechanism (5) comprises a mounting seat (505), a spectrum sensor (506) is fixedly installed at the upper end of the mounting seat (505), and the spectrum sensor (506) is located below the standard color plate (2) and the printing sample plate (3).

2. A color proofing device for a corrugated box printing press according to claim 1, wherein: The clamping mechanism (4) further comprises a motor support (401), a driving motor (402), a driving gear (403), a first bearing ring (404), a first rotating rod (405), a first transmission gear (406), a first limiting screw (408), a second bearing ring (409), a second rotating rod (410), a second transmission gear (411) and a second limiting screw (413), and the inner wall of the proofreading chamber (1) is fixedly provided with the motor support (401).

3. A color proofing device for a corrugated box printing press as defined in claim 2 wherein: The driving motor (402) is fixedly installed on the motor support (401), a driving gear (403) is fixedly installed at the transmission end of the driving motor (402), and a first transmission gear (406) is arranged at the right side of the driving gear (403).

4. A color proofing device for a corrugated box printing press as defined in claim 3 wherein: The first transmission gear (406) is in meshing connection with the driving gear (403), a first rotating rod (405) is fixedly installed at the middle portion of the first transmission gear (406), and a first bearing ring (404) is arranged at the rear of the first rotating rod (405).

5. A color proofing device for a corrugated box printing press as defined in claim 4 wherein: A second transmission gear (411) is arranged at the left side of the driving gear (403), the second transmission gear (411) is in meshing connection with the driving gear (403), a second rotating rod (410) is fixedly installed at the middle portion of the second transmission gear (411), and a second bearing ring (409) is arranged at the rear of the second rotating rod (410).

6. A color proofing device for a corrugated box printing press as defined in claim 2 wherein: A first limiting screw (408) is installed at the upper end of the first clamping plate (407), and a second limiting screw (413) is installed at the upper end of the second clamping plate (412).

7. A color proofing device for a corrugated box printing press according to claim 1 wherein: The regulating mechanism (5) further comprises an upper cover plate (501), a glass tank (502), a lamp holder (503), an illuminating lamp (504) and an electric control chamber (507), and the upper end of the proofreading chamber (1) is fixedly provided with the upper cover plate (501), and the bottom end of the interior of the proofreading chamber (1) is fixedly provided with the electric control chamber (507).

8. A color proofing device for a corrugated box printing press according to claim 7, wherein: The middle portion of the upper cover plate (501) is provided with the glass tank (502), the inner wall of the upper cover plate (501) is fixedly provided with the lamp holder (503), and the lamp holder (503) is fixedly provided with the illuminating lamp (504).

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