A printing paper humidity control device
By incorporating drying and humidifying mechanisms into the printing equipment and extending the stable path along the paper's running path, combined with sensors and control devices, the problem of uneven humidity regulation was solved, enabling precise adjustment and uniform distribution of printing paper humidity, thus improving printing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HUALI PRINTING CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-03
AI Technical Summary
In existing printing equipment, the connection between drying and humidifying equipment lacks a buffer, resulting in delayed humidity response and uneven distribution, which affects printing quality.
The drying and humidifying mechanisms are set up separately in a sealed chamber. The stable path extends the travel distance of the printing paper, and temperature and humidity sensors and control equipment are provided to achieve precise humidity regulation.
It enables precise adjustment and uniform distribution of printing paper humidity, thereby improving the quality of printed products.
Smart Images
Figure CN224447196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of printing equipment, and in particular to a humidity regulating device for printing paper. Background Technology
[0002] The humidity of the printing paper needs to be controlled during the printing process to ensure accurate and clear registration during printing and to ensure that the finished paper has good quality.
[0003] In existing technologies, the final humidity is controlled by coordinating the drying and humidification of paper. However, the connection between the drying equipment and the humidification equipment lacks a buffer. Direct humidification with the residual heat of the dried paper results in problems such as lag in humidity response, uneven humidity distribution, and insufficient adjustment precision, which affect the quality of subsequent printing or processing. Utility Model Content
[0004] In order to improve the problems in the humidity control process of printing paper in the above-mentioned background art, the present invention provides a humidity control device for printing paper.
[0005] The printing paper humidity regulating device provided by this utility model adopts the following technical solution:
[0006] A printing paper humidity regulating device includes a support frame with conveying rollers for conveying printing paper distributed on the support frame. A humidity regulating mechanism is arranged along the conveying direction of the printing paper. The humidity regulating mechanism includes a drying mechanism and a humidifying mechanism. A stabilizing path is arranged at the rear end of the drying mechanism and the humidifying mechanism respectively. The stabilizing path extends the running distance of the printing paper.
[0007] Preferably, the stable path includes multiple staggered guide rollers, and the printing paper travels around the guide rollers in an "S" shaped path.
[0008] Preferably, the drying mechanism and the humidifying mechanism are respectively installed in a sealed box with a printing paper conveying channel. The sealed box is divided into multiple units along its length. Airflow from a fan is input into the sealed box unit where the drying mechanism is installed to achieve low-temperature drying of the printing paper. An ultrasonic atomizing nozzle is installed in the sealed box unit where the humidifying mechanism is installed to humidify the area of the printing paper.
[0009] Preferably, the effective running distance of the printing paper on the stable path is 2-4 times the running distance of the printing paper within the humidity control mechanism.
[0010] Preferably, a temperature and humidity sensor is provided at the end of the stabilization path, the sensing probe of the temperature and humidity sensor contacts the printing paper, and the temperature and humidity sensor is electrically connected to a control device mounted on the bracket.
[0011] Preferably, a tension adjustment mechanism is provided at the rear of the stabilization path. The tension adjustment mechanism includes a tension roller and an electric adjustment device, which adjusts the installation position and tension of the tension roller.
[0012] Preferably, a drive motor is installed on the stabilizing path, and the output end of the drive motor is connected to the guide roller in the stabilizing path through a transmission mechanism.
[0013] In summary, this utility model has the following beneficial technical effects:
[0014] 1. This utility model can achieve precise humidity control of printing paper. By setting up sealed boxes in different sections and extending the running path of printing paper after key processing steps, the temperature and humidity of the printing paper can be balanced, the residual effects of different processing steps in the humidity control process can be reduced, and the final humidity can be uniformly distributed to ensure the quality of the finished product.
[0015] 2. This utility model only requires setting multiple staggered guide rollers in the rear area of the humidity adjustment mechanism. The printing paper can be arranged around the guide rollers in an "S" shaped path to improve the humidity distribution area of the printing paper, which is convenient for the modification of existing equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a printing paper humidity regulating device according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the vertically misaligned guide roller according to an embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the structure of the laterally misaligned guide roller according to an embodiment of the present invention;
[0019] Figure 4 This is a schematic diagram of the tension adjustment mechanism according to an embodiment of the present invention.
[0020] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Conveyor roller; 3. Humidity adjustment mechanism; 4. Stabilizing path; 5. Guide roller; 6. Drive motor; 7. Temperature and humidity sensor; 8. Control equipment; 9. Tension adjustment mechanism; 10. Tensioning roller; 11. Electric adjustment equipment; 12. Drying mechanism; 13. Humidification mechanism; 14. Sealed chamber. Detailed Implementation
[0021] The following combination Figures 1-4 The present invention will be described in further detail below.
[0022] This utility model discloses a humidity regulating device for printing paper.
[0023] Reference Figure 1 , Figure 2 , Figure 3 A humidity regulating device for printing paper includes a support 1, on which conveying rollers 2 for conveying printing paper are distributed. A humidity regulating mechanism 3 is arranged along the conveying direction of the printing paper. The humidity regulating mechanism 3 includes a drying mechanism 12 and a humidifying mechanism 13. A stabilizing path 4 is arranged at the rear end of the drying mechanism 12 and the humidifying mechanism 13, respectively. The stabilizing path 4 includes multiple staggered guide rollers 5. The multiple guide rollers 5 can be vertically staggered, or horizontally or obliquely staggered. The printing paper travels around the guide rollers 5 in an "S" shaped path. The stabilizing path 4 extends the travel distance of the printing paper.
[0024] Reference Figure 1 The drying mechanism 12 and the humidifying mechanism 13 are respectively installed in the sealed box 14 with the printing paper conveying channel. The sealed box 14 is divided into multiple units along the length direction.
[0025] The airflow from the fan is input into the sealed chamber 14 unit where the drying mechanism 12 is installed to achieve low-temperature drying of the printing paper. A heating wire is installed at the output end of the fan, and the low-temperature airflow is input in a gradient to achieve the transition of low-temperature drying of the printing paper. The stabilization path 4 at the rear end of the drying mechanism 12 is the first stabilization path. The first stabilization path extends the running distance of the printing paper to balance the temperature and humidity of the printed paper after drying, so that the surface temperature rises back to the ambient temperature, and the humidity is evenly distributed, making it close to the natural state. The ultrasonic atomizing nozzle is installed in the sealed chamber 14 unit where the humidification mechanism 13 is installed to humidify the surface of the printing paper. The ultrasonic atomizing nozzle generates water mist to precisely humidify the surface of the printing paper. The humidity sensor inside the humidification mechanism 13 is linked with the control device 8 to automatically adjust the amount of water mist according to the target humidity. The atomizing nozzle accurately replenishes water according to the target humidity. The stabilization path 4 at the rear end of the humidification mechanism 13 is the second stabilization path. The second stabilization path extends the running distance of the printing paper to ensure that the water mist fully penetrates the printing paper fibers and ensures that the final humidity is uniform and stable.
[0026] Reference Figure 1 , Figure 2 , Figure 3 The effective running distance of the printing paper in the stable path 4 is 2-4 times the running distance of the printing paper in the humidity control mechanism 3.
[0027] Reference Figure 1Temperature and humidity sensors 7 are installed at the rear of the stable path 4. Temperature and humidity sensors 7 are electrically connected to control devices 8 installed on the bracket 1. Temperature and humidity sensors 7 detect the humidity and temperature of the paper and transmit them to control devices 8 in the form of electrical signals. Control devices 8 receive the information and provide feedback. Control devices 8 integrate the data from each sensor with a PLC controller as the core and realize the separate control of drying temperature, humidification amount and motor conveying speed.
[0028] Reference Figure 2 , Figure 3 , Figure 4 The stable path 4 is followed by a tension adjustment mechanism 9, which includes a tension roller 10 and an electric adjustment device 11. The tension of the paper is detected in real time by a tension sensor on the guide roller 5 and transmitted to the control device 8. After comparing the set value, the control device 8 adjusts the installation position and tension of the tension roller 10 through the electric adjustment device 11. The electric adjustment device 11 uses a servo motor, which adjusts the installation position of the tension roller 10 through a ball screw to achieve precise tension control. In the paper feeding of some large printing presses, a cylinder-driven tension adjustment structure can also be used.
[0029] Reference Figure 1 Multiple drive motors 6 are installed on the stabilizing path 4. The output end of the drive motor 6 is connected to the guide roller 5 in the stabilizing path 4 through a transmission mechanism to realize the conveying of printing paper. The same type of drive motor 6 is also set on the bracket. The output end of the drive motor 6 is connected to the conveying roller 2 through a transmission mechanism to realize the conveying of printing paper.
[0030] The stabilization path 4 can be set up in a separate printing box or exposed in the workshop. A humidity and temperature control system is set up in the workshop or printing box, using air conditioning and ventilation fans to regulate the overall temperature and humidity in the workshop or printing box, adapting to the storage environment of the printing paper, so that the printing paper can adapt to the environment on the stabilization path 4 and balance the temperature and humidity of the printing paper surface.
[0031] The implementation principle of the printing paper humidity adjustment device in this embodiment is as follows: a drying mechanism 12 and a humidifying mechanism 13 are set along the printing paper conveying direction to dry and humidify the printing paper respectively. The humidity is adjusted in conjunction with temperature and humidity sensors 7 and control equipment 8. Stable paths 4 are installed at the rear ends of the drying mechanism 12 and the humidifying mechanism 13 respectively to extend the running distance of the printing paper and balance the temperature and humidity of the printing paper surface.
[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A humidity regulating device for printing paper, characterized in that: Includes a support (1), on which are distributed conveying rollers (2) for conveying printing paper, and a humidity regulating mechanism (3) is provided along the conveying direction of the printing paper. The humidity regulating mechanism (3) includes a drying mechanism (12) and a humidifying mechanism (13). The rear ends of the drying mechanism (12) and the humidifying mechanism (13) are respectively provided with a stabilizing path (4), which extends the running distance of the printing paper.
2. A printed paper moisture conditioning apparatus as claimed in claim 1, wherein: The stable path (4) includes multiple staggered guide rollers (5), and the printing paper travels around the guide rollers (5) in an "S" shaped path.
3. A printed paper moisture conditioning apparatus as claimed in claim 1, wherein: The drying mechanism (12) and the humidifying mechanism (13) are respectively installed in a sealed box (14) with a paper conveying channel. The sealed box (14) is divided into multiple units along the length direction. The airflow output by the fan is input into the sealed box (14) unit where the drying mechanism (12) is installed to achieve low-temperature drying of the paper. An ultrasonic atomizing nozzle is installed in the sealed box (14) unit where the humidifying mechanism (13) is installed to humidify the paper surface.
4. The printing paper humidity regulating device according to claim 1, characterized in that: The effective running distance of the printing paper in the stable path (4) is 2-4 times the running distance of the printing paper in the humidity regulating mechanism (3).
5. A printed paper moisture conditioning apparatus as claimed in claim 1, wherein: A temperature and humidity sensor (7) is provided at the rear of the stable path (4), and the temperature and humidity sensor (7) is electrically connected to a control device (8) provided on the bracket (1).
6. A printed paper moisture conditioning apparatus as claimed in claim 1, wherein: The rear section of the stable path (4) is provided with a tension adjustment mechanism (9), which includes a tension roller (10) and an electric adjustment device (11). The installation position and tension of the tension roller (10) are adjusted by the electric adjustment device (11).
7. A printed paper moisture conditioning apparatus as claimed in claim 1, wherein: A drive motor (6) is installed on the stable path (4), and the output end of the drive motor (6) is connected to the guide roller (5) in the stable path (4) through a transmission mechanism.