Color detection and control device for printing press

Abstract

This utility model relates to the field of printing press technology and discloses a color detection and control device for a printing press. It includes a main frame, a paper roll, a take-up roller, a guide device, an auxiliary detection device, and an integrated device for multiple color sensors. The auxiliary detection device and the integrated device for multiple color sensors are located on the top surface of the main frame. A paper roll is located at one end of the bottom of the main frame, and a take-up roller is located at the other end. The integrated device for color sensors is located within the auxiliary detection device. The sensors in the integrated device for color sensors are slidably connected to sliding insertion slots on a crossbeam via snap-fit ​​blocks. These sliding insertion slots have multiple snap-fit ​​slots and positioning magnets, facilitating sensor installation and position adjustment, improving sensor installation flexibility, and adapting to various paper sizes.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, specifically to a color detection and control device for printing presses. Background Technology

[0002] In the printing industry, precise color control is a core element in ensuring the quality of printed materials. Printing press color inspection technology, by objectively quantifying color data, solves the problem of subjective factors affecting traditional visual assessment, providing quantifiable quality standards for the entire printing process (pre-press, printing, and post-press).

[0003] Most existing color detection and control devices for printing presses are not suitable for various paper sizes, and the detection devices are also relatively difficult to replace.

[0004] To address the aforementioned issues, we propose a color detection and control device for printing presses. Utility Model Content

[0005] The purpose of this invention is to provide a color detection and control device for printing presses to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a color detection and control device for a printing press, comprising a main frame, a paper roll, a take-up roller, a guide device, an auxiliary detection device, and an integrated device for multiple color sensors;

[0007] The main frame is equipped with the auxiliary detection device and multiple color light sensor integrated devices on its top surface; the paper roll is provided at one bottom end of the main frame; the paper receiving roller is provided at the other bottom end of the main frame; the color light sensor integrated device is provided inside the auxiliary detection device.

[0008] Preferably, the auxiliary detection device includes an outer frame, multiple electric cylinders, and pressure rollers;

[0009] Multiple electric cylinders are fixed at their ends on the top surface of the main frame; the electric cylinders are driven at their ends and connected to the bottom surface of the outer frame; the color light sensor integrated device is provided inside the outer frame; the pressure roller is rotatably connected inside the outer frame; the main frame is rotatably connected to the top of the main frame; and the pressure roller is located above the drive roller.

[0010] Preferably, the pressure roller has a rotating shaft inside; both ends of the rotating shaft are connected to the outer frame through bearing seats; the outer frame has a side wall cavity; the side wall cavity of the outer frame is connected to the bearing seat through an elastic element.

[0011] Preferably, the color light sensor integrated device includes a sensor and a crossbeam; a sliding insertion groove is provided on the side wall of the crossbeam; a plurality of snap-fit ​​grooves are evenly provided on the sliding insertion groove along the setting direction of the crossbeam; a positioning magnet is provided in the snap-fit ​​groove; a snap-fit ​​block is provided on the connection surface between the sensor and the crossbeam; the sensor snap-fit ​​block is slidably connected in the sliding insertion groove.

[0012] Preferably, the guiding device includes a drive roller, an auxiliary roller, two mounting plates, and two brackets; the mounting plates are connected to the side of the main frame through the brackets; the drive roller is rotatably connected between the two mounting plates; a motor is provided on the outer side of one of the mounting plates; the motor drive end is connected to one end of the drive roller; the auxiliary roller is rotatably connected between the two brackets.

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

[0014] Enhanced device stability: The pressure roller is connected to the outer frame via a rotating shaft and bearing housing, and the inner cavity of the outer frame's side wall is connected to the bearing housing via an elastic element, giving the pressure roller a certain degree of elastic cushioning during paper pressing, thus enhancing the device's stability. Furthermore, the electric cylinder can drive the outer frame to rise and fall, adjusting the pressure roller height to accommodate different paper sizes.

[0015] Improved sensor installation flexibility: The sensor in the color sensor integrated device is slidably connected to the sliding insertion slot on the crossbeam via a snap-fit ​​block. The sliding insertion slot is equipped with multiple snap-fit ​​slots and positioning magnets, which facilitates the installation and position adjustment of the sensor, improves the installation flexibility of the sensor, and adapts to various paper sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main sectional view of the structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the integrated color light sensor device of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection relationship between the rotating shaft and the outer frame in this utility model.

[0020] In the diagram: 1-Main frame, 11-Drive roller, 2-Paper roll, 3-Take-up roller, 4-Guide device, 41-Drive roller, 42-Auxiliary roller, 43-Mounting plate, 44-Bracket, 5-Auxiliary detection device, 51-Outer frame, 52-Electric cylinder, 53-Pressure roller, 531-Rotating shaft, 6-Color light sensor integrated device, 61-Sensor, 62-Crossbeam, 621-Sliding insertion slot. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 Figure 4 shows a technical solution provided by this utility model: a color detection and control device for a printing press, including a main frame 1, a paper roll 2, a take-up roller 3, a guide device 4, an auxiliary detection device 5, and an integrated device for multiple color light sensors 6.

[0023] The main frame 1 is provided with the auxiliary detection device 5 and multiple color light sensor integrated devices 6 on its top surface. The paper roll 2 is provided at one bottom end of the main frame 1, and the paper receiving roller 3 is provided at the other bottom end of the main frame 1. The color light sensor integrated device 6 is provided inside the auxiliary detection device 5.

[0024] Furthermore, the auxiliary detection device 5 includes an outer frame 51, multiple electric cylinders 52, and pressure rollers 53.

[0025] Multiple electric cylinders 52 are fixed at their fixed ends on the top surface of the main frame 1, and the driving ends of the electric cylinders 52 are connected to the bottom surface of the outer frame 51. The color light sensor integrated device 6 is provided inside the outer frame 51. The pressure roller 53 is rotatably connected inside the outer frame 51. The main frame 1 is rotatably connected to the top of the main frame 1, and the pressure roller 53 is located above the active roller 11.

[0026] Furthermore, the pressure roller 53 is provided with a rotating shaft 531, and both ends of the rotating shaft 531 are connected to the outer frame 51 through bearing seats. The outer frame 51 is provided with a side wall cavity, and the side wall cavity of the outer frame 51 is connected to the bearing seat through an elastic element.

[0027] Furthermore, the color sensor integrated device 6 includes a sensor 61 and a crossbeam 62. A sliding insertion groove 621 is formed on the side wall of the crossbeam 62. Multiple snap-fit ​​grooves are evenly formed on the sliding insertion groove 621 along the direction of the crossbeam 62. A positioning magnet is provided in each snap-fit ​​groove. A snap-fit ​​block is provided on the connection surface between the sensor 61 and the crossbeam 62. The sensor 61 snap-fit ​​block is slidably connected to the sliding insertion groove 621. The positioning magnet in the sliding insertion groove 621 is disposed in the snap-fit ​​groove of the sliding insertion groove 621, and the positioning magnet does not need to fill the snap-fit ​​groove completely, leaving a certain gap in the snap-fit ​​groove, such as... Figure 3 As shown. This design facilitates the positioning and locking of the sensor 61's locking block. The locking block of the sensor 61 can be made of ordinary iron.

[0028] The sensor 61 described in this application employs an RGB color sensor, which separates the spectrum using red, green, and blue primary color filters to measure the light intensity of each color channel. The RGB color sensor offers high reliability in detecting similar colors and hues and can distinguish minute color differences (such as between different batches of white paper). It analyzes the proportions of red, green, and blue light, unaffected by changes in detection distance (only the light intensity changes, the proportions remain constant). It utilizes the intensity of reflected light from the three primary colors to achieve minute color discrimination. However, a fixed distance between the sensor and the paper is necessary to avoid errors. This problem is addressed in this application by using the electric cylinder 52 to drive the outer frame 51 to adjust the distance between the integrated color sensor device 6 inside the outer frame 51 and the paper. The distance between the integrated color sensor device 6 in the main frame 1 and the bottom surface of the paper remains constant.

[0029] Furthermore, the guiding device 4 includes a drive roller 41, an auxiliary roller 42, two mounting plates 43, and two brackets 44. The mounting plates are connected to the side of the main frame 1 via the brackets 44. The drive roller 41 is rotatably connected between the two mounting plates 43. A motor is provided on the outer side of one of the mounting plates 43, and the motor's driving end is connected to one end of the drive roller 41. The auxiliary roller 42 is rotatably connected between the two brackets 44. It should be noted that a motor is also provided on the outside of the paper receiving roller 3 for driving. The paper receiving roller 3 rotates in the same direction as the drive roller 41, and simultaneously drives and collects the paper.

[0030] Working principle:

[0031] Start the motor to drive the drive roller 41 to rotate, and at the same time the take-up roller 3 also starts to rotate. The paper on the paper roll 2 moves under the drive of the drive roller 41 and the take-up roller 3.

[0032] The electric cylinder 52 drives the outer frame 51 to move downward, so that the pressure roller 53 cooperates with the drive roller 11 to flatten the paper.

[0033] The sensor 61 in the color sensor integrated device 6 detects the color of the flattened paper and transmits the detection data to the control system.

[0034] The control system adjusts the color parameters of the printing press based on the detection data to ensure the color quality of the printed materials.

[0035] When the paper size changes, the sensor 61 on the crossbeam 62 can be disassembled or installed as needed to adapt to the paper size change for detection. The locking block of the sensor 61 slides in the sliding insertion slot 621, and the positioning magnet in the slot attracts the locking block of the sensor 61 and achieves positioning.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A print engine color detection and control apparatus, characterized by, It includes a main frame (1), a paper roll (2), a take-up roller (3), a guide device (4), an auxiliary detection device (5), and an integrated device for multiple color light sensors (6). The main frame (1) is provided with the auxiliary detection device (5) and multiple color light sensor integrated devices (6) on its top surface; the paper roll (2) is provided at one bottom end of the main frame (1); the paper receiving roller (3) is provided at the other bottom end of the main frame (1); the color light sensor integrated device (6) is provided inside the auxiliary detection device (5).

2. The printing press color detection and control apparatus of claim 1 wherein, The auxiliary testing device (5) includes an outer frame (51), multiple electric cylinders (52), and pressure rollers (53); Multiple electric cylinders (52) are fixed at their fixed ends on the top surface of the main frame (1); the driving end of the electric cylinders (52) is connected to the bottom surface of the outer frame (51); the color light sensor integrated device (6) is provided inside the outer frame (51); the pressure roller (53) is rotatably connected inside the outer frame (51); the main frame (1) is rotatably connected to the top of the main frame (1); the pressure roller (53) is located above the active roller (11).

3. A printing press color detection and control apparatus as in claim 2 wherein, The pressure roller (53) is provided with a rotating shaft (531); both ends of the rotating shaft (531) are connected to the outer frame (51) through bearing seats; the outer frame (51) is provided with a side wall cavity; the side wall cavity of the outer frame (51) is connected to the bearing seat through an elastic element.

4. The printing press color detection and control apparatus of claim 2 wherein, The color light sensor integrated device (6) includes a sensor (61) and a crossbeam (62); a sliding insertion groove (621) is provided on the side wall of the crossbeam (62); a plurality of snap-fit ​​grooves are evenly provided on the sliding insertion groove (621) along the setting direction of the crossbeam (62); a positioning magnet is provided in the snap-fit ​​groove; a snap-fit ​​block is provided on the connection surface between the sensor (61) and the crossbeam (62); the snap-fit ​​block of the sensor (61) is slidably connected to the sliding insertion groove (621).

5. The printing press color detection and control apparatus of claim 1 wherein, The guiding device (4) includes a drive roller (41), an auxiliary roller (42), two mounting plates (43), and two brackets (44); the mounting plates are connected to the side of the main frame (1) through the brackets (44); the drive roller (41) is rotatably connected between the two mounting plates (43); a motor is provided on the outer side of one of the mounting plates (43); the motor drive end is connected to one end of the drive roller (41); the auxiliary roller (42) is rotatably connected between the two brackets (44).

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