Printing dryer
By using a temperature control system controlled by far-infrared heating elements and temperature sensors in the printing dryer, combined with preheating and cooling measures, the problem of high energy consumption of existing hot air dryers is solved, and efficient and energy-saving printing drying effects are achieved.
Patent Information
- Application Number
- CN202422836142.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing hot air dryers consume high energy and have a slow drying speed during the printing process, resulting in high overall power consumption.
The far-infrared heating elements with quartz tubular structure are used as the main and auxiliary heating elements. Combined with temperature sensors and controllers, the temperature of the drying room and preheating room is controlled in real time. The hot air is circulated through the ventilation slots and circulating fans for preheating, and the cooling room is cooled by air. The temperature of the drying area is controlled by partitions, and the printed products are fixed by fixing components.
It improves drying efficiency and quality while reducing energy consumption, reduces safety risks, and reduces overall energy consumption and scalding risks.
Smart Images
Figure CN223420305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing and drying, in particular to a printing drying machine. Background Art
[0002] Printing is a technology that transfers ink from originals such as text, pictures, photos, and anti-counterfeiting materials to the surface of paper, textiles, plastics, leather, PVC, PC, and other materials through processes such as plate making, inking, and pressurization, thereby replicating the original content in batches. In the printing industry, to ensure the quality of printed products, the paper usually needs to go through a drying process after printing to remove moisture and other solvents from the ink, so that the ink can quickly stabilize.
[0003] Most existing printing dryers are hot air drying machines, which achieve drying by blowing high-temperature hot air on the printed materials. Specifically, they mostly include a conveyor belt and a drying tunnel. By placing the printed materials to be dried on the conveyor belt and starting the transmission belt, the dried printed materials are driven through the drying tunnel, and the hot air drying is carried out by the hot air blower in the drying tunnel.
[0004] However, in actual use, traditional hot air dryers evaporate the ink on the surface of the product to be dried by blowing high-temperature air continuously across the surface. However, during large-scale drying, the hot air dryer continuously maintains hot air, and the production of hot air consumes a considerable amount of electricity. The drying speed of hot air drying is slow, resulting in a large overall power consumption and high overall energy consumption. Utility Model Content
[0005] In order to reduce overall energy consumption, the present application provides a printing dryer.
[0006] The printing dryer provided in this application adopts the following technical solution:
[0007] A printing dryer includes a body and a conveyor belt, the conveyor belt is rotatably arranged on the body, the conveyor belt is used for printing products, the body is provided with a drying chamber, the body is provided with a feed port and a discharge port communicated with the drying chamber, the conveyor belt passes through the drying chamber, a main heating element is provided in the drying chamber, the main heating element is used for heating and drying, the body is provided with a controller connected to the main heating element signal, the drying chamber is provided with a first temperature sensor connected to the controller signal, and the controller is used to control the opening and closing of the main heating element according to the detection result of the first temperature sensor.
[0008] By adopting the above technical solution, the printed products are placed on the conveyor belt, and the conveyor belt is started during drying to drive the printed products into the drying chamber, and the main heating element in the drying chamber is started. The main heating element is a far-infrared heating element with a quartz tubular structure. The main heating element radiates and heats the drying chamber, thereby drying the printed products passing through the drying chamber. At the same time, the first temperature sensor detects the temperature in the drying chamber. When the temperature in the drying chamber reaches the set upper limit value, the controller turns off the main heating element according to the detection result of the first temperature sensor. When the temperature in the drying chamber drops below the set lower limit value, the controller starts the main heating element for reheating according to the detection result of the first temperature sensor to maintain the temperature in the drying chamber. Therefore, there is no need to start the main heating element all the time, thereby reducing energy consumption.
[0009] Preferably, the machine body is provided with a preheating chamber connected to the drying chamber, the feed port is provided on the preheating chamber, the conveyor belt passes through the preheating chamber, the machine body is provided with a ventilation groove connecting the drying chamber and the preheating chamber, and a circulating fan is provided in the preheating chamber.
[0010] By adopting the above technical solution, the circulating fan is a high-temperature resistant model with an adjustable speed to ensure uniform airflow distribution. The printed products first pass through the preheating chamber and then enter the drying chamber for drying. The high-temperature gas in the drying chamber enters the preheating chamber through the ventilation slot, and the circulating fan blows the air in the preheating chamber to circulate, so that the temperature in the preheating chamber is maintained at a high level, so that the printed products passing through the preheating chamber are preheated to a certain extent, thereby facilitating subsequent drying and utilizing the heat in the drying chamber to reduce energy consumption.
[0011] Preferably, an auxiliary heating element connected to the controller signal is provided in the drying chamber, and the auxiliary heating element is used to generate heat to increase the temperature of the preheating chamber. A second temperature sensor connected to the controller signal is provided in the preheating chamber, and the controller is used to control the opening and closing of the auxiliary heating element according to the value of the second temperature sensor.
[0012] By adopting the above technical solution, the auxiliary heating element is a far-infrared heating element with a quartz tubular structure, and the second temperature sensor monitors the temperature of the preheating chamber. When the temperature of the preheating chamber is lower than the lower limit, the controller starts the auxiliary heating element according to the detection value of the second temperature sensor, thereby increasing the temperature in the preheating chamber. When the temperature in the preheating chamber rises towards the set upper limit, the controller turns off the auxiliary heating element according to the detection value of the second temperature sensor, thereby ensuring that the temperature in the preheating chamber is within an appropriate range, ensuring the preheating effect of the printed products, and improving the subsequent drying effect. At the same time, the opening and closing of the auxiliary heating element are reasonably controlled to reduce power consumption and energy consumption.
[0013] Preferably, the machine body is provided with a cooling chamber communicated with the drying chamber, the discharge port is provided on the cooling chamber, the conveyor belt passes through the cooling chamber, and a cooling fan is provided in the cooling chamber.
[0014] By adopting the above technical scheme, the cooling fan cools the dried printing products by air cooling, reduces the possibility of high-temperature printing products scalding workers after drying, and reduces the safety risk.
[0015] Preferably, the machine body is provided with a heat insulation block arranged between the cooling chamber and the drying chamber.
[0016] By adopting the above technical scheme, the heat insulation block reduces the heat exchange between the cooling chamber and the drying chamber, thereby reducing unnecessary heat consumption and energy loss.
[0017] Preferably, a plurality of drying zones are arranged in the drying chamber, and the main heating element and the first temperature sensor are arranged in the drying zone.
[0018] By adopting the above technical scheme, the main heating element and the first temperature sensor are matched one by one, and a set of main heating element and first temperature sensor are arranged in each drying zone, thereby dividing the drying chamber into a plurality of drying zones, using main heating elements of far-infrared heating elements with different powers in each drying zone, so that the main heating elements of different drying zones are heated to different temperatures, and the temperature of the drying zone through which the printing products pass gradually increases, thereby better and faster heating and drying the printing products, making the temperature rise of the printing products more smooth and fast, on the one hand, improving the drying effect, on the other hand, reducing the drying time, to improve the drying efficiency, and reducing the overall energy consumption by reducing the drying time.
[0019] Preferably, the machine body is provided with a placing block arranged on the conveying belt, and the placing block is provided with a fixing assembly for fixing the printing products on the placing block.
[0020] By adopting the above technical scheme, the fixing assembly fixes the printing products on the placing block, thereby reducing the possibility of folding and wrinkling of the printing products during drying, thereby ensuring the drying effect and improving the drying quality.
[0021] Preferably, the fixing assembly includes a fixing rod, a first fixing magnetic sheet and a second fixing magnetic sheet, the fixing rod is rotatably arranged on the placing block, the first fixing magnetic sheet is arranged on the fixing rod, the second fixing magnetic sheet is arranged on the placing block, and the first fixing magnetic sheet and the second fixing magnetic sheet are magnetically attracted.
[0022] By adopting the above technical scheme, the printing products are placed on the placing block and covered with the second fixing magnetic sheet, then the fixing rod is rotated to press the printing products, and the first fixing magnetic sheet is attracted to the second fixing magnetic sheet, thereby fixing the printing products on the placing block, which is simple and convenient to operate and improves the convenience of use.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. The application provides a printing drying machine, which comprises a machine body, a conveying belt, a drying chamber, an inlet, an outlet, a main heating element, a controller and a first temperature sensor; the printing products to be dried are placed on the conveying belt of the machine body, and are pushed by the conveying belt to enter the drying chamber through the inlet, are dried in the drying chamber, and are discharged from the outlet; the drying chamber is heated by the main heating element to dry the printing products, and the temperature in the drying chamber is monitored by the first temperature sensor; when the temperature is too high, the controller turns off the main heating element; when the temperature is too low, the controller starts the main heating element, so that the opening and closing of the main heating element are better controlled, the main heating element does not need to be started all the time, and energy consumption is saved.
[0025] 2. The application provides a printing drying machine, which comprises a preheating chamber, a ventilation groove and a circulating fan; the hot air in the drying chamber enters the preheating chamber through the ventilation groove, and the hot air is circulated in the preheating chamber by the circulating fan, so that the preheating chamber maintains a certain temperature, the printing products before drying are preheated, the effect of subsequent drying is improved, and the energy consumption is reduced by using the heat escaping from the drying chamber.
[0026] 3. The application provides a printing drying machine, which comprises a cooling chamber, a cooling fan and a heat insulation block; the cooling fan in the cooling chamber is used for air cooling the printing products after drying, so that the temperature of the cooled products after drying is reduced, the risk of scalding the workers is reduced, and the safety risk is reduced; the cooling chamber and the drying chamber are separated by the heat insulation block, and unnecessary negative energy consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 FIG. 1 is a schematic diagram of the printing drying machine.
[0028] Figure 2 FIG. 2 is a sectional view for showing the internal structure of the machine body.
[0029] Figure 3 FIG. 3 is a sectional view for showing the structure of the fixing assembly.
[0030] Figure 4 FIG. 4 is a control block diagram of the printing drying machine.
[0031] Mark 1, machine body; 11, drying chamber; 111, drying area; 12, preheating chamber; 121, ventilation groove; 13, cooling chamber; 131, air outlet; 14, inlet; 15, outlet; 16, conveying belt; 2, controller; 21, first temperature sensor; 22, second temperature sensor; 23, main heating element; 24, auxiliary heating element; 3, circulating fan; 4, cooling fan; 5, heat insulation block; 6, placing block; 61, mounting groove; 7, fixing assembly; 71, fixing rod; 72, first fixing magnetic sheet; 73, second fixing magnetic sheet. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] The embodiment of the present application discloses a printing dryer. Figure 1 、 Figure 2 and Figure 4 The machine body 1 includes a conveyor belt 16, which is rotatably mounted on the machine body 1 and is used to transport printed products. The machine body 1 is provided with a preheating chamber 12, a drying chamber 11, and a cooling chamber 13, which are interconnected. The drying chamber 11 is disposed between the cooling chamber 13 and the preheating chamber 12. The preheating chamber 12 is provided with a feed port 14 on the side away from the drying chamber 11, and the cooling chamber 13 is provided with a discharge port 15 on the side away from the drying chamber 11. The conveyor belt 16 passes through the preheating chamber 12, the drying chamber 11, and the cooling chamber 13. The drying chamber 11 is divided into several drying areas 111. Each drying area 111 is fixedly provided with a main heating element 23 and a first temperature sensor 21 connected by the signal of the controller 2. The main heating element 23 is a far-infrared heating element with a quartz tubular structure of different powers. The controller 2 cooperates with the first temperature sensor 21 to adopt an intelligent adjustment algorithm integrated with the temperature control system to adjust the heating power in real time, so that the temperature in each drying area 111 in the drying chamber 11 is maintained in an increasing range, and the temperature in the drying area 111 is monitored by the first temperature sensor 21. The controller 2 is used to control the opening and closing of the main heating element 23 according to the detection result of the first temperature sensor 21. When the temperature is too low, the controller 2 starts the main heating element 23 for heating. When the temperature is too high, the controller 2 turns off the main heating element 23 to save energy.
[0034] To improve the convenience of use, refer to Figure 2 and Figure 4 The body 1 is provided with a ventilation groove 121 connecting the drying chamber 11 and the preheating chamber 12. The preheating chamber 12 and the cooling chamber 13 are also provided with a number of air outlets 131 connected to the outside. A circulating fan 3 is fixedly provided on the inner wall of the preheating chamber 12. The circulating fan 3 is made of heat-resistant material. The speed and wind direction are adjustable to ensure uniform airflow distribution. The circulating fan 3 is arranged above the ventilation groove 121. An auxiliary heating element 24 is fixedly provided on the top wall of the drying chamber 11. The auxiliary heating element 24 is also a far-infrared heating element with a quartz tubular structure. A second temperature sensor 22 connected to the signal of the controller 2 is provided in the preheating chamber 12. The controller 2 is used to control the opening and closing of the auxiliary heating element 24 according to the numerical value of the second temperature sensor 22. A plurality of cooling fans 4 are provided in the cooling chamber 13. The cooling fan 4 includes a combination of several axial flow fans, which are compactly arranged and have low noise. An insulating block 5 is provided on the body 1 between the cooling chamber 13 and the drying chamber 11. The printed products are preheated in the preheating chamber 12 before drying to improve the drying effect, and are cooled in the cooling chamber 13 after drying to reduce the risk of burns.
[0035] In order to ensure the drying quality, refer to Figure 1and Figure 3 The machine body 1 is provided with a plurality of placement blocks 6. The placement blocks 6 are placed on the conveyor belt 16 for carrying printed products. The placement blocks 6 are provided with a fixing assembly 7 for fixing the printed products to the placement blocks 6. The fixing assembly 7 includes a fixing rod 71, a first fixing magnet 72, and a second fixing magnet 73. The fixing rod 71 is rotatably mounted at the four corners of the placement block 6 surface via a rotating shaft. The fixing rod 71 can slide up and down a certain distance along the rotating shaft. The first fixing magnet 72 is fixedly mounted on the bottom wall of the fixing rod 71 away from the rotating shaft. The surface of the placement block 6 is provided with an arc-shaped mounting groove 61 centered on the rotating shaft of the fixing rod 71. The second fixing magnet 73 is fixedly mounted within the mounting groove 61, and the top wall of the second fixing magnet 73 is flush with the surface of the placement block 6. The first fixing magnet 72 and the second fixing magnet 73 are magnetically attracted to each other. When a printed product is placed on the surface of the placement block 6, the fixing rod 71 is rotated to press the printed product, causing the first fixing magnet 72 and the second fixing magnet 73 to magnetically attract each other, thereby fixing the printed product to the placement block 6. The placement block 6 is placed on the conveyor belt 16 and moved to dry the printed product, and the printed product is fixed by the fixing component 7 to reduce the possibility of wrinkling of the printed product during the drying process, thereby improving the drying quality.
[0036] The implementation principle of a printing dryer in an embodiment of the present application is as follows: a temperature control system of the drying area 111 is formed by a first temperature sensor 21, a main heating element 23 and a controller 2, thereby controlling the temperature of the drying area 111, so that the drying area 111 maintains an increasing temperature along the forward route of the printed product, thereby improving the drying efficiency, and at the same time controlling the temperature of the drying area 111, starting the main heating element 23 for heating when the temperature is too low, and shutting down the main heating element 23 when the temperature is too high to save energy. At the same time, a preheating chamber 12 is set, and the hot air from the drying chamber 11 escaping from the ventilation groove 121 is blown by the circulating risk, so that the preheating chamber 12 maintains a certain temperature for preheating, and an auxiliary heating element 24 is set to cooperate with the second temperature sensor 22 and the controller 2 to form a temperature control system in the preheating chamber 12, ensuring the temperature of the preheating chamber 12, thereby preheating the printed product before drying, thereby improving the drying effect and saving drying time. The present application achieves energy saving and consumption reduction by saving drying time and shutting down the heating equipment in time.
[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A printing dryer, characterized in that: The invention comprises a machine body (1) and a conveyor belt (16), wherein the conveyor belt (16) is rotatably arranged on the machine body (1), and the conveyor belt (16) is used to transport printed products. The machine body (1) is provided with a drying chamber (11), and the machine body (1) is provided with a feed port (14) and a discharge port (15) communicated with the drying chamber (11). The conveyor belt (16) passes through the drying chamber (11), and a main heating element (23) is provided in the drying chamber (11), and the main heating element (23) is used for heating and drying. The machine body (1) is provided with a controller (2) connected to the main heating element (23) by signal, and a first temperature sensor (21) connected to the controller (2) by signal is provided in the drying chamber (11), and the controller (2) is used to control the opening and closing of the main heating element (23) according to the detection result of the first temperature sensor (21).
2. A printing dryer according to claim 1, characterized in that: The machine body (1) is provided with a preheating chamber (12) communicating with a drying chamber (11), the feed port (14) is provided on the preheating chamber (12), the conveyor belt (16) passes through the preheating chamber (12), the machine body (1) is provided with a ventilation groove (121) communicating with the drying chamber (11) and the preheating chamber (12), and a circulating fan (3) is provided in the preheating chamber (12).
3. A printing dryer according to claim 2, characterized in that: An auxiliary heating element (24) connected to a controller (2) signal is provided in the drying chamber (11), and the auxiliary heating element (24) is used to generate heat to increase the temperature of the preheating chamber (12). A second temperature sensor (22) connected to a controller (2) signal is provided in the preheating chamber (12), and the controller (2) is used to control the opening and closing of the auxiliary heating element (24) according to the value of the second temperature sensor (22).
4. A printing dryer according to claim 1, characterized in that: The machine body (1) is provided with a cooling chamber (13) communicating with the drying chamber (11), the discharge port (15) is provided on the cooling chamber (13), the conveyor belt (16) passes through the cooling chamber (13), and a cooling fan (4) is provided in the cooling chamber (13).
5. A printing dryer according to claim 4, characterized in that: The machine body (1) is provided with a heat insulation block (5), and the heat insulation block (5) is arranged between the cooling chamber (13) and the drying chamber (11).
6. A printing dryer according to claim 1, characterized in that: A plurality of drying areas (111) are provided in the drying chamber (11), and the main heating element (23) and the first temperature sensor (21) are provided in the drying areas (111).
7. A printing dryer according to claim 1, characterized in that: The machine body (1) is provided with a placement block (6), the placement block (6) is placed on a conveyor belt (16), and the placement block (6) is provided with a fixing component (7), and the fixing component (7) is used to fix the printed product on the placement block (6).
8. A printing dryer according to claim 7, characterized in that: The fixing assembly (7) comprises a fixing rod (71), a first fixing magnetic piece (72) and a second fixing magnetic piece (73); the fixing rod (71) is rotatably arranged on the placement block (6); the first fixing magnetic piece (72) is arranged on the fixing rod (71); the second fixing magnetic piece (73) is arranged on the placement block (6); and the first fixing magnetic piece (72) and the second fixing magnetic piece (73) are magnetically attracted to each other.