A humidification mechanism for printing

Abstract

This utility model discloses a humidification mechanism for printing, including a frame. A PLC controller is installed on the outer wall of the frame, and a front base plate is fixed to one side of the bottom of the frame. In use, the humidity sensor at the bottom of the front base plate performs non-contact humidity monitoring on the surface of the paper or other printing substrate, and feeds the monitored data back to the PLC controller. The PLC controller then calculates the optimal spray flow rate based on a preset model, turns on the ultrasonic atomizer, and controls the output flow of the flow control valve. Tap water in the pre-stored water tank is filtered and purified through a water purification cylinder before entering the ultrasonic atomizer for ultrasonic atomization, forming ultrafine droplets that are sprayed onto the surface of the printing substrate. The droplets diffuse easily and do not condense on the paper surface, improving the humidification effect of the substrate. This helps prevent water-based inks from absorbing too much moisture when humidity is too high, thus avoiding problems such as ink emulsification, ink smearing, and mottling.

Description

Technical Field

[0001] This utility model relates to the field of printing structure technology, specifically a humidification mechanism for printing. Background Technology

[0002] Printing equipment transfers graphic information from printing plates to substrates such as paper, plastic, and metal. The humidification mechanism is one of the most important components of printing equipment. It eliminates static electricity and optimizes print quality by spraying water to humidify the printing.

[0003] Current printing humidification systems often use spraying, which results in larger water droplets sprayed onto the substrate and poor uniformity of humidification. This can easily lead to excessive localized humidity on the substrate surface and water droplets accumulating inside the printing press, causing contamination. Based on this, we propose a new type of printing humidification system. Utility Model Content

[0004] The purpose of this invention is to provide a humidification mechanism for printing, so as to solve the problem mentioned in the background art that the humidification effect is not uniform and water droplets are prone to accumulating and contaminating the printing press.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a humidification mechanism for printing, comprising a frame, a PLC controller mounted on the outer wall of the frame, a front base plate fixed to one side of the bottom of the frame, a humidity sensor mounted at the bottom of the front base plate, a pre-storage water tank mounted on the top of the front base plate, water level sensors uniformly mounted on the pre-storage water tank, a liquid extraction pipe uniformly fixed at the top inside the pre-storage water tank, a humidification pipe uniformly fixed inside the frame, a humidification nozzle, a flow control valve, and an ultrasonic atomizer sequentially mounted on the humidification pipe, a water purification cylinder installed between the ultrasonic atomizer and the liquid extraction pipe, a blower plate fixed inside the frame on the side of the humidification pipe closest to the pre-storage water tank, an air pump mounted at one end of the blower plate, a gas purification cylinder threadedly connected to the input end of the air pump, and a uniformly distributed cover threadedly connected to the side of the blower plate closest to the humidification pipe.

[0006] As a further technical solution of this utility model, the bottom of both ends of the frame is fixed with a fixing arm, and the fixing arm is evenly provided with screw holes to facilitate the installation of the device on the printing equipment.

[0007] As a further technical solution of this utility model, the bottom end of the front substrate is provided with a recessed mounting groove that matches the humidity sensor, and a traceless adhesive tape layer is provided between the humidity sensor and the recessed mounting groove to facilitate the disassembly and maintenance of the humidity sensor.

[0008] As a further technical solution of this utility model, the liquid extraction pipes are arranged at equal intervals on the pre-storage water tank, and the liquid extraction pipes extend vertically to the bottom of the pre-storage water tank.

[0009] As a further technical solution of this utility model, an external water pipe is fixed to the top of one side of the pre-stored water tank, and the inner wall of the external water pipe is provided with an internal thread layer.

[0010] As a further technical solution of this utility model, an electromagnetic valve is installed on the external water pipe, and a rubber sealing layer is provided on the external water pipe.

[0011] As a further technical solution of this utility model, flanges are provided on the water purification cylinder, ultrasonic atomizer and liquid extraction pipe.

[0012] As a further technical solution of this utility model, both the gas purification cylinder and the water purification cylinder are provided with an activated carbon filter layer inside.

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

[0014] By installing a front substrate, the device optimizes its performance. The humidity sensor at the bottom of the front substrate performs non-contact humidity monitoring on the surface of the paper and other printing substrates before they are delivered, and feeds the monitored data back to the PLC controller. The PLC controller then calculates the optimal spray flow rate based on a preset model, turns on the ultrasonic atomizer, and controls the output flow of the flow control valve. The tap water in the pre-stored water tank is filtered and purified through the water purification tube before entering the ultrasonic atomizer for ultrasonic atomization, forming ultra-fine droplets that are sprayed onto the surface of the printing substrate. The droplets are easy to diffuse and do not easily condense on the paper surface, which improves the humidification effect of the printing substrate. This helps to avoid problems such as ink emulsification, ink smearing, and mottling caused by excessive water absorption when the humidity is too high.

[0015] By installing humidity sensors, the device optimizes its structure. The humidity sensor at the bottom of the substrate performs non-contact humidity monitoring on the surface of the paper and other printing substrates before they are delivered, and feeds the monitored data back to the PLC controller. The PLC controller then calculates the optimal spray flow rate based on a preset model, turns on the ultrasonic atomizer, and controls the output flow of the flow control valve. The tap water in the pre-stored water tank is filtered and purified through the water purification tube before entering the ultrasonic atomizer for ultrasonic atomization, forming ultra-fine droplets that are sprayed onto the surface of the printing substrate. The droplets are easy to diffuse and do not easily condense on the paper surface, improving the humidification effect of the printing substrate. This helps to avoid problems such as ink emulsification, ink smearing, and mottling caused by excessive water absorption when the humidity is too high.

[0016] By incorporating a pre-stored water tank, the device allows users to connect an external water source via a water pipe and automatically control the opening and closing of the tank using a solenoid valve. Water level sensors at the top and bottom of the pre-stored water tank monitor and provide real-time feedback on the water level. When the water level falls below a preset value, the solenoid valve opens, automatically replenishing the water level at the corresponding height of the water level sensor inside the tank. This provides the device with the advantage of automatic water replenishment and is quite convenient. Furthermore, by adding independently detachable gas and water purification cylinders, both equipped with activated carbon filter layers, the device can filter and purify the gas and water introduced into it, preventing the risk of clogging and facilitating the cleaning and maintenance of the gas and water purification cylinders. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the present invention.

[0020] Figure 4 This is a rear view schematic diagram of the air pump structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the front substrate structure of this utility model from below.

[0022] In the diagram: 1. Air pump; 2. Water purification cylinder; 3. Pre-stored water tank; 4. Frame; 5. Front base plate; 6. External water pipe; 7. Solenoid valve; 8. PLC controller; 9. Liquid extraction fittings; 10. Flange; 11. Gas purification cylinder; 12. Ultrasonic atomizer; 13. Water level sensor; 14. Humidifying nozzle; 15. Flow control valve; 16. Fixing arm; 17. Distributing cover; 18. Air blower plate; 19. Recessed mounting groove; 20. Humidity sensor; 21. Humidifying fittings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5An embodiment of this utility model is provided: a humidification mechanism for printing, including a frame 4, a PLC controller 8 installed on the outer side wall of the frame 4, a front base plate 5 fixed on one side of the bottom of the frame 4, a humidity sensor 20 installed at the bottom of the front base plate 5, a pre-storage water tank 3 installed on the top of the front base plate 5, water level sensors 13 evenly installed on the pre-storage water tank 3, and a liquid extraction pipe 9 evenly fixed at the top inside the pre-storage water tank 3.

[0025] Humidification pipes 21 are evenly fixed inside the frame 4. Humidification nozzles 14, flow control valves 15 and ultrasonic atomizers 12 are sequentially installed on the humidification pipes 21. A water purification cylinder 2 is installed between the ultrasonic atomizer 12 and the liquid extraction pipe 9.

[0026] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the humidity sensor 20 at the bottom of the front substrate 5 will perform non-contact humidity monitoring on the surface of the paper and other printing substrates before they are delivered, and feed the monitored data back to the PLC controller 8. Then, the PLC controller 8 calculates the optimal spray flow rate according to the preset model, turns on the ultrasonic atomizer 12, and controls the output flow rate of the flow control valve 15. The tap water in the pre-stored water tank 3 is filtered and purified by the water purification cylinder 2 and then enters the ultrasonic atomizer 12 for ultrasonic atomization treatment to form ultra-fine droplets and spray them onto the surface of the printing substrate. The droplets are easy to diffuse and do not easily condense on the paper surface, which improves the humidification effect of the printing substrate and helps to avoid the problem of ink emulsification, smearing and mottling caused by excessive water absorption when the humidity is too high.

[0027] A blower plate 18 is fixed inside the frame 4 on the side of the humidifying pipe 21 near the pre-stored water tank 3. An air pump 1 is installed at one end of the blower plate 18. A gas purification cylinder 11 is threadedly connected to the input end of the air pump 1. A uniformly distributed cover 17 is evenly threadedly connected to the side of the blower plate 18 near the humidifying pipe 21.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, while humidifying, the air pump 1 is started. The air from the external environment is filtered and purified by the gas purification cylinder 11 and then drawn into the interior of the blower plate 18. The air is then evenly sprayed towards the substrate conveying direction through the uniformly distributed cover 17 on the blower plate 18. The spraying mechanism is located in front of the spray structure, which helps to guide the droplets to evenly cover the surface of the substrate, avoiding the formation of excess water mist that may flow into the printing equipment and cause pollution, thus improving the safety protection of the printing equipment.

[0029] The bottom of both ends of the frame 4 is fixed with fixing arms 16, and screw holes are evenly distributed on the fixing arms 16 to facilitate the fixed installation of the device and printing equipment.

[0030] The bottom of the front substrate 5 is provided with a recessed mounting groove 19 that matches the humidity sensor 20. A traceless adhesive tape layer is provided between the humidity sensor 20 and the recessed mounting groove 19 to facilitate the disassembly and maintenance of the humidity sensor 20.

[0031] The liquid extraction pipes 9 are arranged at equal intervals on the pre-storage water tank 3, and the liquid extraction pipes 9 extend vertically to the bottom of the pre-storage water tank 3.

[0032] An external water pipe 6 is fixed to the top of one side of the pre-stored water tank 3, and the inner wall of the external water pipe 6 is provided with an internal thread layer.

[0033] An electromagnetic valve 7 is installed on the external water pipe 6, and a rubber sealing layer is provided on the external water pipe 6;

[0034] Flanges 10 are provided on the water purification cylinder 2, the ultrasonic atomizer 12, and the liquid extraction pipe 9.

[0035] Both the gas purification cylinder 11 and the water purification cylinder 2 are equipped with activated carbon filter layers inside.

[0036] Working principle: In use, an external power supply is connected. The user first uses the front base plate 5 with screw holes to fix the device on the printing equipment with screws. In specific operation, the humidity sensor 20 at the bottom of the front base plate 5 will perform non-contact humidity monitoring on the surface of the paper or other printing substrate and feed the monitored data back to the PLC controller 8. Then, the PLC controller 8 calculates the optimal spray flow rate according to the preset model, turns on the ultrasonic atomizer 12, and controls the output flow of the flow control valve 15, and uses the tap water in the pre-stored water tank 3. After being filtered and purified by the water purification cylinder 2, the water enters the ultrasonic atomizer 12 for ultrasonic atomization, forming ultrafine droplets that are sprayed onto the surface of the substrate. These droplets diffuse easily and do not condense on the paper surface, improving the humidification effect and helping to prevent water-based inks from absorbing too much moisture, which can lead to ink emulsification, smudging, and mottling. Furthermore, during humidification, the air pump 1 is activated, filtering and purifying the ambient air through the gas purification cylinder 11 before drawing it into the blower plate 18. The air is then evenly distributed on the blower plate 18... The uniform spray hood 17 sprays water evenly in the direction of substrate transport, and this spraying mechanism is located in front of the spray structure. This helps guide the droplets to evenly cover the surface of the substrate, preventing excess water mist from condensing and flowing into the printing equipment, thus improving the safety of the printing equipment. In addition, the user can connect an external water pipe 6 to a water source and automatically control the opening and closing of the water tank 3 via a solenoid valve 7. The water level sensors 13 installed at the top and bottom of the pre-stored water tank 3 will monitor and provide feedback on the water level inside the pre-stored water tank 3 in real time. When the water level is lower than the preset value... When the solenoid valve 7 is opened, the external tap water is automatically replenished to the water level of the water level sensor 13 at the corresponding high position inside the pre-stored water tank 3. This makes the device realize the advantage of automatic water replenishment and is more convenient. Furthermore, by adding independently detachable gas purification cylinder 11 and water purification cylinder 2, and by setting activated carbon filter layers inside both gas purification cylinder 11 and water purification cylinder 2, the gas and tap water introduced into the device can be filtered and purified, avoiding the risk of device blockage, and the gas purification cylinder 11 and water purification cylinder 2 can be easily cleaned and maintained.

[0037] 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.

Claims

1. A humidification mechanism for printing, characterized in that, The system includes a frame (4), on which a PLC controller (8) is mounted on the outer wall. A front base plate (5) is fixed to one side of the bottom of the frame (4). A humidity sensor (20) is mounted at the bottom of the front base plate (5). A pre-storage water tank (3) is mounted on the top of the front base plate (5). Water level sensors (13) are evenly mounted on the pre-storage water tank (3). A liquid extraction pipe (9) is evenly fixed at the top inside the pre-storage water tank (3). A humidification pipe (21) is evenly fixed inside the frame (4). A series of... The humidifying nozzle (14), flow control valve (15) and ultrasonic atomizer (12) are installed. A water purification cylinder (2) is installed between the ultrasonic atomizer (12) and the liquid extraction pipe (9). A blower plate (18) is fixed inside the frame (4) on the side of the humidifying pipe (21) near the pre-stored water tank (3). A vacuum pump (1) is installed at one end of the blower plate (18). A gas purification cylinder (11) is threaded to the input end of the vacuum pump (1). A uniformly distributed cover (17) is evenly threaded to the side of the blower plate (18) near the humidifying pipe (21).

2. The humidification mechanism for printing according to claim 1, characterized in that: The bottom of both ends of the frame (4) is fixed with a fixing arm (16), and the fixing arm (16) is evenly provided with screw holes.

3. The humidification mechanism for printing according to claim 1, characterized in that: The bottom end of the front substrate (5) is provided with a recessed mounting groove (19) that matches the humidity sensor (20), and a traceless adhesive tape layer is provided between the humidity sensor (20) and the recessed mounting groove (19).

4. The humidification mechanism for printing according to claim 1, characterized in that: The liquid extraction pipes (9) are arranged at equal intervals on the pre-storage water tank (3), and the liquid extraction pipes (9) extend vertically to the bottom of the pre-storage water tank (3).

5. A humidification mechanism for printing according to claim 1, characterized in that: An external water pipe (6) is fixed to the top of one side of the pre-stored water tank (3), and the inner wall of the external water pipe (6) is provided with an internal thread layer.

6. A humidification mechanism for printing according to claim 5, characterized in that: A solenoid valve (7) is installed on the external water pipe (6), and a rubber sealing layer is provided on the external water pipe (6).

7. A humidification mechanism for printing according to claim 1, characterized in that: Flanges (10) are provided on the water purification cylinder (2), the ultrasonic atomizer (12), and the liquid extraction pipe (9).

8. A humidification mechanism for printing according to claim 1, characterized in that: Both the gas purification cylinder (11) and the water purification cylinder (2) are equipped with activated carbon filter layers inside.

Images