An automatic printed matter color detection device and detection method

Abstract

The application discloses a printed matter color automatic detection device and detection method, which comprises a chassis, a transmission assembly arranged above the chassis to realize transmission of the printed matter, and a detection cabinet mounted on the top of the chassis, and a color detection mechanism arranged in the detection cabinet to realize multiple detection operations of the color of the printed matter. The application relates to the color automatic detection technical field. The printed matter color automatic detection device and detection method are provided with the color detection mechanism, a switching unit is used to realize switching operations of different light source lamps, color tests under different environments in the detection process are realized, personnel is not needed to replace the light source lamps, the clamping unit is used to realize clamping opening of the light source lamps, and the clamping opening realizes light source generation and stable operations, light source switching and positioning operations, so that the overall detection operation is more convenient, the efficiency is higher, and integrated automatic color detection operations are realized.

Description

An automatic color detection device and method for printed materials Technical Field

[0001] This invention relates to the field of automatic color detection technology, specifically to an automatic color detection device and method for printed materials. Background Technology

[0002] In printing, colorimetry is widely used in plate making, proofing, and printing, and there is a growing pursuit of color accuracy and describability. Colorimetry, as the name suggests, is the measurement of color.

[0003] The reference patent title is: An Automatic Color Detection Device for Printed Materials (Patent Publication No.: CN219474796U, Patent Publication Date: 2023-08-04), which includes a three-way adjustable detection component, a displacement sensor, and a fully enclosed visible housing. The three-way adjustable detection component is located inside the fully enclosed visible housing and includes an X-direction moving component, a Y-direction moving component, and a Z-direction moving component. The combined movement of the X-direction moving component, the Y-direction moving component, and the Z-direction moving component drives the colorimeter of the automatic color detection device to move along the X, Y, and Z directions. The displacement sensor is installed on the colorimeter of the automatic color detection device and is at the same height as the probe of the colorimeter. It can accurately measure the distance between the colorimeter probe and the surface of the printed material to be detected, ensuring that the colorimeter can measure the color of printed materials of different thicknesses and materials through contact, thereby improving detection efficiency and the accuracy of positioning during the movement of the colorimeter.

[0004] Based on the description in the above documents, the existing printing color detection process requires different light sources due to changes in the environment. However, the current method of changing light sources is not convenient, or multiple devices are used to complete the detection, which affects efficiency. Furthermore, the detection results of printing color will also vary depending on the angle of the light source. Therefore, the present invention provides an automatic printing color detection device and detection method. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an automatic color detection device and method for printed materials. It solves the problem that in the process of detecting the color of printed materials, different light sources are required due to changes in the environment. Currently, it is not convenient to change the light source, or multiple devices are used to complete the detection, which affects efficiency. Furthermore, the detection results of printed materials will vary depending on the angle of the light source.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic color detection device for printed materials, comprising a base frame, a transmission component disposed above the base frame for transmitting printed materials, a detection cabinet mounted on the top of the base frame, and a color detection mechanism disposed inside the detection cabinet for performing multiple color detection operations on the printed materials, wherein the color detection mechanism comprises:

[0007] The light source unit is located inside the testing cabinet and includes a symmetrical fixed plate. Different light sources are installed equidistantly in a circular pattern on the surface of the fixed plate. The light sources are switched through a switching unit. The switching unit switches between different light sources or contacts them to generate light by moving the clamping unit.

[0008] The testing department, located inside the testing cabinet, is used for testing the received reflected light.

[0009] The light source unit and the detection unit achieve horizontal displacement operation through the set adjustment unit and complete the synchronous adjustment of the light source illumination angle and the light receiving angle.

[0010] Preferably, the switching unit includes:

[0011] The testing box has support plates symmetrically installed on the front and rear sides at the bottom, and support rods are rotatably installed on opposite sides of the support plates, with the extended ends of the support rods fixed to the center of one side of the fixed plate.

[0012] A cylindrical core is fitted onto the surface of a front support rod, and a movable column is connected to the surface of the front support rod via an elastic component. A control groove for controlling the movable column is provided on the inner surface of the cylindrical core.

[0013] Preferably, the elastic component includes:

[0014] The connecting column is installed on the arc surface of the front support rod, and a placement groove is opened on the opposite side of the connecting column and the moving column;

[0015] The abutment spring has its two ends fixed to the opposite sides of the placement slot and the moving column, respectively. The abutment spring returns to its elasticity without being affected by external force, thereby enabling the moving column to move to the outside of the placement slot.

[0016] Preferably, the control slot is composed of multiple identical slots matching the number of light sources, and the multiple identical slots are interconnected to form a complete control slot. Each identical slot consists of a curved slot and a straight slot. When the moving column moves in the curved slot, it gradually retracts into the placement slot until it reaches the end of the straight slot and is reset to the initial state under the elasticity of the abutment spring. The movement of the central cylinder drives the rotation of the support rod to achieve the switching of the light source. When the moving column moves in the straight slot, it gradually retracts into the placement slot until it reaches the end of the next curved slot and is reset to the initial state under the elasticity of the abutment spring. The movement of the central cylinder has no effect on the support rod.

[0017] Preferably, the clamping unit includes:

[0018] Two clamping plates are symmetrically arranged. Fixing rings are installed on opposite sides of the two clamping plates. The light source is generated when the fixing rings contact the side of the light source. A moving block is installed on the top of the clamping plates. The side of the rear clamping plate is fixed to the surface of the central cylinder through an insulating connecting plate.

[0019] The clamping box is installed inside the detection box, and the rear moving block is moved by a pneumatic component inside the clamping box. The rear moving block extends through the interior of the clamping box and the front moving block is moved relative to or away from each other by a linkage component.

[0020] Preferably, the pneumatic assembly includes a locking cylinder fixedly installed inside the clamping box, and a piston rod is slidably arranged inside the locking cylinder, with one end of the piston rod fixed to the side of the rear moving block.

[0021] Preferably, the linkage component includes:

[0022] A rotating shaft is rotatably mounted at the center of the bottom of the clamping box cavity, and a rotating rod is mounted at the top of the rotating shaft;

[0023] A pair of linkage rods are arranged in parallel. The opposite ends are rotatably connected to the two ends of the rotating rod, and the ends that are far apart from each other are rotatably connected to the top of the moving block, so as to realize the synchronous movement of the two moving blocks relative to each other or in opposite directions.

[0024] Preferably, the adjustment unit includes:

[0025] The slotted frame is installed on the inner wall of the testing cabinet and has an opening on the top.

[0026] The I-shaped block is provided with a pair that are adapted to the channel frame and are located inside the channel frame for horizontal sliding. The front edge of the I-shaped block is equipped with a protrusion, and the front ends of the two protrusions are respectively connected and fixed to the detection part and the rear side of the detection box. They are located inside the channel frame, and a traction component is provided between the two I-shaped blocks to realize the relative or opposite movement of the I-shaped blocks.

[0027] Preferably, the traction assembly includes:

[0028] The drive motor is mounted on a platform at the center of the top of the slotted frame. One end of the drive motor's output shaft is fixed to the drive shaft via a coupling, while the other end of the drive shaft extends through to the bottom of the platform and is fixed with a drive gear.

[0029] The transmission rack has a pair of racks positioned in the front and rear directions of the drive gear. The ends of the two racks that are far apart from each other are fixed to the side opposite to the I-shaped block. The drive gear meshes with the surface of the transmission racks to move the racks when the drive gear rotates.

[0030] This invention also discloses an automatic color detection method for printed materials, which specifically includes the following steps:

[0031] S1. The printed materials are transferred into the inspection cabinet through the transmission component, and the inspection is carried out during the process.

[0032] S2. The light source unit generates a light source to illuminate the printed material, and the detection unit receives the reflected light to perform analysis. At the same time, the light source is switched according to the switching unit to realize simulation test of different environments. The position of the light source unit and the detection unit is adjusted by the adjustment unit to change the light source angle during detection.

[0033] S3. Display the detected data through a visual interface.

[0034] This invention provides an automatic color detection device and method for printed materials. Compared with the prior art, it has the following advantages:

[0035] 1. This automatic color detection device and method for printed materials, by setting up a color detection mechanism and using a switching unit to switch between different light sources, simulates color testing under different environments during the detection process. At the same time, no personnel are required to change the light sources. The clamping unit clamps and opens the light sources, and the clamping completes the operation of light source generation and stabilization. The opening of the clamp enables the operation of light source switching and positioning, making the overall detection operation more convenient and efficient, and performing integrated automatic color detection operation.

[0036] 2. The automatic color detection device and method for printed materials, by setting up a clamping unit, uses a locking cylinder to drive the piston rod to move, which in turn drives the rear moving block to move. The movement of the rear moving block drives the rotating rod to rotate around the rotating shaft via a linkage rod, which in turn drives another linkage rod to rotate. This allows the two moving blocks to move in opposite directions or relative to each other, thereby clamping or opening the clamping plate. This achieves stable clamping of the light source and forms a closed circuit. The switching of the light source is achieved by the opening and closing movement of the clamping plate, effectively ensuring the stability and versatility of the detection operation.

[0037] 3. The automatic color detection device and method for printed materials, by setting up an adjustment unit, drives the drive motor to rotate the drive shaft, and then the drive shaft drives the drive gear to rotate. Due to the meshing of the transmission rack and the drive gear, the transmission rack moves, which drives two I-shaped blocks to move synchronously relative to each other or in opposite directions, thereby realizing the movement of the detection unit and the detection box. This changes the position of the light source and the position of the emitted light receiving, thus completing the multi-angle adjustment color detection in the detection operation, ensuring more complete product detection and more accurate data results. Attached Figure Description

[0038] Figure 1 is an external perspective view of the present invention;

[0039] Figure 2 is a three-dimensional structural diagram of the internal structure of the testing cabinet of the present invention;

[0040] Figure 3 is a three-dimensional structural diagram of the adjustment part of the present invention;

[0041] Figure 4 is an enlarged view of a partial structure at point A in Figure 3 of the present invention;

[0042] Figure 5 is a three-dimensional cross-sectional view of the detection box of the present invention;

[0043] Figure 6 is a three-dimensional cross-sectional view of the clamping box of the present invention;

[0044] Figure 7 is a three-dimensional structural diagram of the clamping unit of the present invention;

[0045] Figure 8 is a three-dimensional structural diagram of the linkage component of the present invention;

[0046] Figure 9 is an enlarged view of a partial structure at point B in Figure 8 of the present invention;

[0047] Figure 10 is a three-dimensional structural diagram of the light source section of the present invention;

[0048] Figure 11 is a three-dimensional structural breakdown diagram of the switching unit of the present invention;

[0049] Figure 12 is a three-dimensional structural breakdown diagram of the elastic component of the present invention.

[0050] In the picture:

[0051] 1-Base frame;

[0052] 2-Transmission components;

[0053] 3-Testing cabinet;

[0054] 4-Light source unit, 41-Fixing plate, 42-Light source lamp;

[0055] 5-Switching unit, 51-Detection box, 52-Support plate, 53-Support rod, 54-Central cylinder, 55-Elastic component, 551-Connecting column, 552-Placement slot, 553-Abutting spring, 56-Moving column, 57-Control slot;

[0056] 6-Clamping unit, 61-Clamping plate, 62-Fixing ring, 63-Moving block, 64-Connecting plate, 65-Clamping box, 66-Pneumatic assembly, 661-Locked cylinder, 662-Piston rod, 67-Linkage assembly, 671-Rotating shaft, 672-Rotating rod, 673-Linkage rod;

[0057] 7-Inspection Department;

[0058] 8-Adjustment section, 81-Slotted frame, 82-I-shaped block, 83-Protrusion, 84-Traction assembly, 841-Drive motor, 842-Drive shaft, 843-Drive gear, 844-Transmission rack. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Please refer to Figures 1-12. This invention provides two technical solutions:

[0061] Example 1: An automatic color detection device for printed materials includes a base frame 1, a transmission component 2 located above the base frame 1 for transmitting printed materials, and a detection cabinet 3 installed on the top of the base frame 1. The detection cabinet 3 contains a color detection mechanism that performs multiple color detection operations on the printed materials. The color detection mechanism includes:

[0062] The light source unit 4 is located inside the testing cabinet 3 and includes a symmetrical fixing plate 41. Different light sources 42 are equidistantly installed in a circular pattern on the surface of the fixing plate 41. The light sources 42 are switched through the switching unit 5. The switching unit 5 switches the different light sources 42 or contacts them to generate light by moving the clamping unit 6.

[0063] The detection unit 7, located inside the detection cabinet 3, is used for the detection operation of the received reflected light.

[0064] The light source unit 4 and the detection unit 7 achieve horizontal displacement operation through the adjustment unit 8 and complete the synchronous adjustment of the light source illumination angle and the light receiving angle.

[0065] By incorporating a color detection mechanism and utilizing the switching unit 5 to switch between different light sources 42, color testing can be simulated under different environments during the detection process. This eliminates the need for personnel to replace the light sources 42. The clamping unit 6 clamps and opens the light sources 42, thus enabling the generation and stabilization of the light source through clamping. Opening the clamp allows for the switching and positioning of the light source, making the overall detection operation more convenient and efficient, and enabling integrated automatic color detection.

[0066] The transmission component 2 rotates by driving the transmission belt through the transmission wheel, and the printed matter is transmitted under the drive source. This is an existing mature technology and will not be described in detail. The printed matter passes through the inspection cabinet 3 and is detected by the color detection device in the inspection cabinet 3. The detection unit 7 is a colorimeter or a spectrophotometer in the prior art, which is used to receive reflected light for analysis and detection.

[0067] Please refer to Figures 5-7 and 10-12. In this embodiment of the invention, the switching unit 5 includes:

[0068] The testing box 51 has support plates 52 symmetrically installed on the front and rear sides at the bottom, and support rods 53 are rotatably installed on opposite sides of the support plates 52, and the extended ends of the support rods 53 are fixed to the center of one side of the fixed plate 41.

[0069] A cylindrical core 54 is sleeved on the surface of the front support rod 53, and the surface of the front support rod 53 is connected to a movable column 56 via an elastic component 55. The inner surface of the cylindrical core 54 is provided with a control groove 57 for controlling the movable column 56.

[0070] Please refer to Figures 11-12. In this embodiment of the invention, the elastic component 55 includes:

[0071] The connecting column 551 is installed on the arc surface of the front support rod 53, and the connecting column 551 and the moving column 56 are provided with a placement groove 552 on the opposite side.

[0072] The abutment spring 553 is fixed at both ends to the opposite sides of the placement groove 552 and the moving column 56, and the abutment spring 553 returns to its elasticity without being affected by external force, so that the moving column 56 moves to the outside of the placement groove 552.

[0073] Please refer to Figure 11. In this embodiment of the invention, the control groove 57 is composed of multiple identical grooves matching the number of light sources 42, and the multiple identical grooves are interconnected to form a complete control groove 57. Each identical groove consists of a curved groove and a straight groove. When the moving column 56 moves in the curved groove, the moving column 56 gradually retracts into the placement groove 552 until it reaches the end of the straight groove and is reset to the initial state under the elasticity of the abutment spring 553. The movement of the central cylinder 54 drives the rotation of the support rod 53 to achieve the switching of the light source. When the moving column 56 moves in the straight groove, the moving column 56 gradually retracts into the placement groove 552 until it reaches the end of the next curved groove and is reset to the initial state under the elasticity of the abutment spring 553. The movement of the central cylinder 54 has no effect on the support rod 53.

[0074] Please refer to Figures 7-9. In this embodiment of the invention, the clamping unit 6 includes:

[0075] Two clamping plates 61 are symmetrically arranged. Fixing rings 62 are installed on opposite sides of the two clamping plates 61. After the fixing rings 62 contact the side of the light source 42, the light source 42 generates light. A moving block 63 is installed on the top of the clamping plate 61. The side of the rear clamping plate 61 is fixed to the surface of the central cylinder 54 through an insulating connecting plate 64.

[0076] The clamping box 65 is installed inside the detection box 51, and the rear moving block 63 is moved by the pneumatic component 66 inside the clamping box 65. The rear moving block 63 extends through the interior of the clamping box 65 and the front moving block 63 is moved relative to or opposite to each other by the linkage component 67.

[0077] By setting up the clamping unit 6, the locking cylinder 661 drives the piston rod 662 to move, which in turn drives the rear moving block 63 to move. The movement of the rear moving block 63 drives the rotating rod 672 to rotate around the rotating shaft 671 through the linkage rod 673, and realizes the rotation of another linkage rod 673. Then, the two moving blocks 63 can perform opposite or relative movement operations to realize the clamping or opening of the clamping plate 61, thereby realizing the stable clamping of the light source lamp 42, forming a closed circuit, and relying on the opening and closing movement of the clamping plate 61 to realize the switching of the light source lamp 42, effectively ensuring the stability and diversity of the detection operation.

[0078] The fixing ring 62 and the clamping plate 61 can be electrically connected to an external power source through wires, and can be turned on and off through a switch. At the same time, the fixing ring 62 contacts both sides of the light source 42 to achieve closed-loop operation, thereby realizing the operation of the light source 42 to generate light. This operation is a mature existing technology.

[0079] Please refer to Figure 9. In this embodiment of the invention, the pneumatic assembly 66 includes a locking cylinder 661 fixedly installed inside the clamping box 65, and a piston rod 662 is slidably arranged inside the locking cylinder 661, with one end of the piston rod 662 fixed to the side of the rear moving block 63.

[0080] Among them, the locking cylinder 661 is a lockable cylinder, which can realize the fixed operation after the movement, so as to facilitate better detection. The locking cylinder 661 can be connected to the external air circuit and can be opened and closed through the human control panel, which is an existing mature technology.

[0081] Please refer to Figure 8. In this embodiment of the invention, the linkage component 67 includes:

[0082] A rotating shaft 671 is rotatably mounted at the center of the bottom of the inner cavity of the clamping box 65, and a rotating rod 672 is mounted on the top of the rotating shaft 671.

[0083] A pair of linkage rods 673 are arranged in parallel. Their opposite ends are rotatably connected to the two ends of the rotating rod 672, and their opposite ends are rotatably connected to the top of the moving block 63, so as to realize the synchronous movement of the two moving blocks 63 relative to each other or opposite to each other.

[0084] Please refer to Figures 2-4. In this embodiment of the invention, the adjustment unit 8 includes:

[0085] The slotted frame 81 is installed on the inner wall of the testing cabinet 3, and has an opening on the top side;

[0086] The I-shaped block 82 is provided with a pair of protrusions that are adapted to the channel frame 81 and are located inside the channel frame 81 for horizontal sliding. The front edge of the I-shaped block 82 is equipped with protrusions 83, and the front ends of the two protrusions 83 are respectively connected and fixed to the rear side of the detection unit 7 and the detection box 51. The I-shaped block 82 is located inside the channel frame 81, and a traction component 84 is provided between the two I-shaped blocks 82 to realize the relative or opposite movement of the I-shaped blocks 82.

[0087] Please refer to Figures 4-5. In this embodiment of the invention, the traction assembly 84 includes:

[0088] A drive motor 841 is mounted on a platform at the top center of the slot frame 81, and one end of the output shaft of the drive motor 841 is fixed to a drive shaft 842 via a coupling, while one end of the drive shaft 842 extends through to the bottom of the platform and is fixed to a drive gear 843.

[0089] A pair of transmission racks 844 are provided and are arranged in the front and rear directions of the drive gear 843. The ends of the two transmission racks 844 that are far apart from each other are fixed to the side opposite to the I-shaped block 82. The drive gear 843 and the transmission racks 844 mesh with each other so that the transmission racks 844 move when the drive gear 843 rotates.

[0090] With the adjustment unit 8, the drive motor 841 drives the drive shaft 842 to rotate, and then the drive shaft 842 drives the drive gear 843 to rotate. Due to the meshing of the transmission rack 844 and the drive gear 843, the transmission rack 844 moves, which drives the two I-shaped blocks 82 to move synchronously relative to each other or in opposite directions, thereby realizing the movement of the detection unit 7 and the detection box 51. This changes the position of the light source and the position of the emitted light receiving, thus completing the multi-angle adjustment color detection in the detection operation, ensuring more complete product detection and more accurate data results.

[0091] The drive motor 841 is electrically connected to an external power supply and can be started and stopped via a control panel. The drive motor 841 is a geared motor, which can achieve forward and reverse operation and has a self-locking function to fix the rotational position.

[0092] When the rotation of the drive gear 843 causes the transmission rack 844 to move relative to it, the angle between the light source and the reflected light during detection decreases. Conversely, when the rotation of the drive gear 843 causes the transmission rack 844 to move to the opposite side, the angle between the light source and the reflected light during detection increases. This allows for the control of the light source at different angles. The angle of the light source is changed according to the number of teeth of the drive gear 843 and the distance the transmission rack 844 moves. The specific calculation method is not described in detail, but is controlled by the existing control system.

[0093] Example 2 differs from Example 1 in that: the present invention also discloses an automatic color detection method for printed materials, specifically including the following steps:

[0094] S1. The printed matter is transferred into the inspection cabinet 3 through the transmission component 2, and the printed matter is stopped during inspection.

[0095] S2. The light source unit 4 generates a light source to illuminate the printed material, and the detection unit 7 receives the reflected light to perform analysis. At the same time, the light source is switched according to the switching unit 5 to realize simulation test of different environments. The position of the light source unit 4 and the detection unit 7 is adjusted by the adjustment unit 8 to change the light source angle during detection.

[0096] S3. Display the detected data through a visual interface.

[0097] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0098] During operation, the product is placed on the transmission component 2, and the printed material is transferred into the inspection cabinet 3 by relying on the existing transmission component 2, and the product is stopped during inspection.

[0099] Then, the light source 42 illuminates the printed material at an initial angle, and the detection unit 7 receives and analyzes the reflected light. After completion, the angle of the light source 42 is adjusted.

[0100] The command is transmitted to the drive motor 841, which drives the drive shaft 842 to rotate. The drive shaft 842 then drives the drive gear 843 to rotate. Due to the meshing of the transmission rack 844 and the drive gear 843, the transmission rack 844 moves. At this time, it drives the two I-shaped blocks 82 to move synchronously relative to each other or in opposite directions. Then, the I-shaped blocks 82 drive the protrusion 83 to move, thereby realizing the movement of the detection unit 7 and the detection box 51. This changes the position of the light source and the position of the emitted light receiving. After the angle change detection operation is completed, the initial angle is reset.

[0101] At this time, the simulation detection of different scenes is completed by switching the light source. The corresponding command is transmitted to the locking cylinder 661. The locking cylinder 661 drives the piston rod 662 to move, which in turn drives the rear moving block 63 to move. The movement of the rear moving block 63 drives the rotating rod 672 to rotate around the rotating shaft 671 through the linkage rod 673, and realizes the rotation of another linkage rod 673. Then, the two moving blocks 63 move in opposite directions. At this time, the two clamping plates 61 also open and separate from the light source 42.

[0102] During the opening and movement of the clamping plate 61, the connecting plate 64 drives the central cylinder 54 to move synchronously, and the control groove 57 in the central cylinder 54 drives the moving column 56 to retract. At this time, the curved groove in the control groove 57 controls the moving column 56, so that the moving column 56, the connecting column 551 and the support rod 53 rotate during the movement, and the center of the support rod 53 is the center of rotation, thereby driving the rotation of the fixed plate 41, so as to realize the switching operation of different light sources 42.

[0103] After the switching is completed, the locking cylinder 661 drives the piston rod 662 to move, so that the two clamping plates 61 can move relative to each other. At this time, during the movement, the connecting plate 64 drives the central cylinder 54 to move synchronously, and the control groove 57 in the central cylinder 54 drives the moving column 56 to retract. At this time, the straight groove in the control groove 57 abuts against the moving column 56, so that the moving column 56 retracts but does not rotate. Then, the fixing ring 62 of the clamping plate 61 contacts the side of the light source 42 to realize the operation of the light source 42 to generate light.

[0104] Finally, the tested data is displayed on the visual interface installed on the side of the testing cabinet.

[0105] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0106] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic color detection device for printed materials, comprising a base frame (1), a transmission component (2) disposed above the base frame (1) for transmitting printed materials, and a detection cabinet (3) mounted on the top of the base frame (1), characterized in that: The inspection cabinet (3) is equipped with a color inspection mechanism to perform multiple color inspections on printed materials. The color inspection mechanism includes: a light source unit (4), which is located inside the inspection cabinet (3) and includes a symmetrical fixed plate (41). Different light sources (42) are equidistantly mounted in a circular pattern on the surface of the fixed plate (41). The light sources (42) are switched through a switching unit (5). The switching unit (5) switches between different light sources (42) by moving the clamping unit (6) or by contacting the power source to generate a light source. The inspection unit (7), located inside the inspection cabinet (3), is used to inspect the reflected light after receiving it. The light source unit (4) and the detection unit (7) achieve horizontal displacement operation and complete the synchronous adjustment of the light source illumination angle and the light receiving angle through the set adjustment unit (8); the switching unit (5) includes: a detection box (51), with support plates (52) symmetrically installed on the front and rear sides of the bottom, and support rods (53) rotatably installed on the opposite sides of the support plates (52), and the extension end of the support rods (53) is fixed to the center of one side of the fixed plate (41); a cylindrical cylinder (54), which is sleeved on the surface of the front support rod (53), and the surface of the front support rod (53) is connected to a moving column (56) through an elastic component (55), and the inner surface of the cylindrical cylinder (54) is opened The control slot (57) has a control moving column (56); the elastic component (55) includes: a connecting column (551), which is installed on the arc surface of the front support rod (53), and a placement slot (552) is provided on the opposite side of the connecting column (551) and the moving column (56); a stop spring (553), whose two ends are fixed to the opposite side of the placement slot (552) and the moving column (56) respectively, and the stop spring (553) resets its elasticity under the influence of no external force to realize the movement of the moving column (56) to the outside of the placement slot (552); the control slot (57) is composed of multiple identical slots matching the number of light source lamps (42), and the multiple identical slots are interconnected to form a complete control slot. (57), and the same groove is composed of a curved groove and a straight groove. When the moving column (56) moves in the curved groove, the moving column (56) gradually shrinks into the interior of the placement groove (552) until it reaches the end of the straight groove and is reset to the initial state under the elasticity of the abutment spring (553). The movement of the cylindrical cylinder (54) drives the rotation of the support rod (53) to realize the switching of the light source. When the moving column (56) moves in the straight groove, the moving column (56) gradually shrinks into the interior of the placement groove (552) until it reaches the end of the next curved groove and is reset to the initial state under the elasticity of the abutment spring (553). The movement of the cylindrical cylinder (54) has no effect on the support rod (53).The clamping unit (6) includes: two clamping plates (61), two of which are symmetrically arranged, with fixing rings (62) installed on opposite sides of the two clamping plates (61), and the fixing rings (62) contacting the side of the light source lamp (42) to realize the light source generation operation of the light source lamp (42); a moving block (63) is installed on the top of the clamping plate (61), and the side of the rear clamping plate (61) is fixed to the surface of the central cylinder (54) through an insulating connecting plate (64); and a clamping box (65), which is installed inside the detection box (51). The rear moving block (63) is moved inside the clamping box (65) via a pneumatic assembly (66), and the rear moving block (63) extends through the interior of the clamping box (65) and moves relative to or away from the front moving block (63) via a linkage assembly (67); the pneumatic assembly (66) includes a locking cylinder (661) fixedly installed inside the clamping box (65), and a piston rod (662) is slidably arranged inside the locking cylinder (661), and one end of the piston rod (662) is connected to the rear moving block (63). The side is fixed; the linkage component (67) includes: a rotating shaft (671), which is rotatably installed at the center of the bottom of the inner cavity of the clamping box (65), and a rotating rod (672) is installed at the top of the rotating shaft (671); a pair of linkage rods (673) are arranged in parallel, with their opposite ends rotatably connected to the two ends of the rotating rod (672) respectively, and their opposite ends rotatably connected to the top of the moving block (63), so as to realize the synchronous movement of the two moving blocks (63) relative to each other or back to back; the adjustment part (8) includes: a slotted frame (81), which is installed On the inner wall of the testing cabinet (3), with an opening on the upper side; a pair of I-shaped blocks (82) are provided, which are adapted to the channel frame (81) and are located inside the channel frame (81) for horizontal sliding. A protrusion (83) is installed between the front edges of the I-shaped blocks (82), and the front ends of the two protrusions (83) are respectively connected and fixed to the rear side of the testing section (7) and the testing box (51), and are located inside the channel frame (81). A traction component (84) is provided between the two I-shaped blocks (82) to realize the relative or opposite movement of the I-shaped blocks (82).

2. The automatic color detection device for printed matter according to claim 1, characterized in that: The traction assembly (84) includes: a drive motor (841) mounted on a platform at the top center of the slot frame (81), and one end of the output shaft of the drive motor (841) is fixed to a drive shaft (842) via a coupling, while one end of the drive shaft (842) extends through to the bottom of the platform and is fixed to a drive gear (843); a transmission rack (844), a pair of which are arranged in the front and rear directions of the drive gear (843), and the ends of the two transmission racks (844) that are far apart from each other are fixed to the side opposite to the I-shaped block (82), and the surface meshing of the drive gear (843) and the transmission rack (844) enables the transmission rack (844) to move when the drive gear (843) rotates.

3. An automatic color detection method for printed matter, employing an automatic color detection device for printed matter as described in any one of claims 1-2, characterized in that: Specifically, the following steps are included: S1. The printed matter is transferred to the inspection cabinet (3) through the transmission component (2) and stopped during inspection; S2. The printed matter is illuminated by the light source unit (4) and the reflected light is received and analyzed by the inspection unit (7). At the same time, the light source is switched according to the switching unit (5) to realize the simulation test of different environments. The position of the light source unit (4) and the inspection unit (7) is adjusted by the adjustment unit (8) to change the light source angle during inspection; S3. The inspection data is displayed through the visualization interface.

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