Drying device for paper printing

Abstract

The utility model provides a drying device for paper printing, which relates to the field of printing paper drying and comprises a conveying unit, a support, a conveying roller movably connected to an inner cavity of the support through a bearing and temperature sensors arranged on the front face and the back face of the inner cavity of the support and used for monitoring hot air temperature in real time. Stable and controllable hot air is generated through the hot air drying unit by means of the centrifugal fan and the electric heating pipe, paper is efficiently dried, the hot air is evenly blown to the surface of the paper through the flow dividing pipe and the spray head, the rapid and even drying effect is achieved, real-time feedback of the temperature sensor is received through the microcontroller in the drying process, and the drying efficiency is improved. The heating power of the electric heating pipe can be adjusted according to the preset temperature, the situation of overheating or insufficient drying is prevented while the drying quality of the paper is ensured, stable conveying of the paper is achieved through the conveying rollers of the conveying unit, automatic winding of the dried paper is achieved through the winding assembly, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of paper drying for printing, specifically a paper drying device for printing. Background Technology

[0002] With the continuous development of printing technology, the requirements for the quality and efficiency of printed materials are becoming increasingly higher. Among them, the drying equipment for paper printing is one of the most important pieces of equipment in the printing industry. It is mainly used to quickly and effectively dry the printing paper to ensure that there is no moisture left on the surface of the product, thus facilitating its rapid completion.

[0003] Existing paper printing drying equipment typically employs hot air drying technology. In operation, the printed paper is first placed on a conveyor mechanism, which then uniformly transports the paper. Simultaneously, a blower mechanism generates hot air and evenly distributes it to the surface of the paper. The hot air accelerates the evaporation of moisture from the paper surface, thereby achieving rapid drying.

[0004] However, in actual use, because the temperature of the hot air blown onto the paper surface cannot be known in real time, it is difficult to control the temperature in real time. As a result, the temperature of the hot air is prone to being too high or too low. When the hot air temperature is too high, the paper may deform, curl or lose ink due to over-drying. When the hot air temperature is too low, the drying efficiency of the paper will decrease, thus affecting the quality and efficiency of drying the printing paper.

[0005] In summary, this utility model provides a drying device for paper printing to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A drying apparatus for paper printing, comprising

[0008] The conveying unit includes a support frame, a conveying roller movably connected to the inner cavity of the support frame via bearings, temperature sensors disposed on the front and back sides of the inner cavity of the support frame for real-time monitoring of hot air temperature, and a winding assembly disposed on one side of the support frame for winding paper.

[0009] The hot air drying unit includes a housing, a microcontroller disposed on one side of the housing, a centrifugal fan fixedly connected to the top of the housing, a heating box connected to the air inlet of the centrifugal fan, an electric heating tube disposed in the inner cavity of the heating box, a diversion pipe connected to the air outlet of the centrifugal fan, a nozzle connected to the bottom of the diversion pipe and communicating with the inner cavity of the housing, and an air inlet pipe connected to one side of the heating box.

[0010] Furthermore, in this utility model, the cover is movably connected to the bracket via a hinge, and the lower end of one side of the bracket is movably connected to a limiting roller via a bearing. Both the limiting roller and the conveying roller are in contact with the paper.

[0011] Furthermore, in this utility model, the winding assembly includes a fixed frame fixedly connected to one side of the bracket, a reduction motor fixedly connected to the front of the fixed frame, a winding roller drivenly connected to the output shaft of the reduction motor, a clamping cylinder movably connected to the inner cavity of the winding roller, and a limiting frame movably connected to the clamping cylinder via a bearing.

[0012] Furthermore, in this utility model, a viewing window is provided at the lower end of the front of the cover, and an intercepting net is fixedly connected to the inner cavity of the air inlet pipe.

[0013] Furthermore, in this invention, the output terminal of the temperature sensor is connected to the input terminal of the microcontroller, and the output terminal of the microcontroller is connected to the input terminals of the electric heating tube and the geared motor, respectively.

[0014] Beneficial effects: This utility model has the following beneficial effects:

[0015] This invention utilizes a hot air drying unit, employing a centrifugal fan and electric heating tubes to generate stable and controllable hot air for efficient paper drying. The hot air is evenly distributed to the paper surface through a distribution pipe and nozzles, achieving a rapid and uniform drying effect. During the drying process, a microcontroller receives real-time feedback from a temperature sensor and adjusts the heating power of the electric heating tubes according to a preset temperature, ensuring the quality of paper drying while preventing overheating or under-drying. The conveying unit's conveying rollers ensure stable paper transport, and the winding assembly automatically winds up the dried paper, improving work efficiency. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the conveying unit structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the heating box of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the take-up roller and the limiting frame in the separated state of this utility model.

[0020] In the picture:

[0021] 100. Conveying unit; 110. Support frame; 111. Limiting roller; 120. Conveying roller; 130. Temperature sensor; 140. Rewinding assembly; 141. Fixing frame; 142. Gear motor; 143. Rewinding roller; 144. Limiting frame; 145. Cylinder; 200. Hot air drying unit; 210. Cover; 220. Microcontroller; 230. Centrifugal fan; 240. Heating box; 250. Electric heating element; 260. Diverter pipe; 270. Nozzle; 280. Air inlet pipe. Detailed Implementation

[0022] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0023] Example 1

[0024] like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a drying apparatus for paper printing, including...

[0025] The conveying unit 100 includes a support 110, a conveying roller 120 movably connected to the inner cavity of the support 110 via bearings, a temperature sensor 130 disposed on the front and back of the inner cavity of the support 110 for real-time monitoring of hot air temperature, and a winding assembly 140 disposed on one side of the support 110 for winding paper.

[0026] The hot air drying unit 200 includes a housing 210, a microcontroller 220 disposed on one side of the housing 210, a centrifugal fan 230 fixedly connected to the top of the housing 210, a heating box 240 connected to the air inlet of the centrifugal fan 230, an electric heating tube 250 disposed in the inner cavity of the heating box 240, a diversion pipe 260 connected to the air outlet of the centrifugal fan 230, a nozzle 270 connected to the bottom of the diversion pipe 260 and connected to the inner cavity of the housing 210, and an air inlet pipe 280 connected to one side of the heating box 240.

[0027] like Figure 1-4As shown, the printed paper to be dried is placed on the conveyor roller 120, which, in conjunction with the winding assembly 140, transports the paper at a uniform speed. The winding assembly 140 can automatically wind up the paper after drying, improving work efficiency. During the paper transport process, after the centrifugal fan 230 is started, it draws in external air and enters the heating box 240. The air is heated in the heating box 240 by the electric heating tube 250, generating high-temperature hot air. The hot air is then distributed to the nozzles 270 through the distributor 260 and evenly blown onto the paper surface, achieving a fast and uniform drying effect. During the drying process, the temperature sensor 130 monitors the hot air temperature in real time and transmits the signal to the microcontroller 220. The microcontroller 220 adjusts the heating power of the electric heating tube 250 according to the preset program and temperature feedback to maintain a stable hot air temperature and achieve automatic temperature control. This ensures the quality of paper drying while preventing overheating or under-drying, effectively improving the quality of paper drying.

[0028] Example 2

[0029] Reference Figure 1 , 2 4 and 5 represent the second embodiment of this utility model, which is based on the previous embodiment.

[0030] In this embodiment, the cover 210 is movably connected to the bracket 110 via a hinge, and the lower end of one side of the bracket 110 is movably connected to the limiting roller 111 via a bearing. Both the limiting roller 111 and the conveying roller 120 are in contact with the paper.

[0031] The winding assembly 140 includes a fixed frame 141 fixedly connected to one side of the bracket 110, a geared motor 142 fixedly connected to the front of the fixed frame 141, a winding roller 143 drivenly connected to the output shaft of the geared motor 142, a clamp 145 movably connected to the inner cavity of the winding roller 143, and a limiting frame 144 movably connected to the clamp 145 via a bearing.

[0032] like Figure 1 , 2As shown in Figure 4, the cover 210 is movably connected to the bracket 110, allowing the cover 210 to be easily opened or closed, facilitating cleaning and maintenance of the conveying unit 100. The cover 210 also shields the conveyed paper, preventing external dust from falling onto it. The limiting roller 111 and the conveying roller 120 work together to ensure the paper remains stable during conveying, preventing deviation or wrinkling. The reduction motor 142 drives the winding roller 143 to rotate and wind up the paper. The limiting frame 144 limits the winding of the paper. The clamp 145 facilitates the connection between the limiting frame 144 and the winding roller 143. The limiting frame 144 drives the clamp 145 to disengage from the inner cavity of the winding roller 143, making it easier for personnel to remove the wound paper from the surface of the winding roller 143, thus improving the convenience of paper collection.

[0033] Example 3

[0034] Reference Figure 1-3 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0035] In this embodiment, a viewing window is provided at the lower end of the front of the cover 210, and an intercepting net is fixedly connected to the inner cavity of the air inlet pipe 280.

[0036] The output of temperature sensor 130 is connected to the input of microcontroller 220. The output of microcontroller 220 is connected to the input of electric heating tube 250, centrifugal fan 230 and geared motor 142 respectively. Electric heating tube 250 is a stainless steel finned electric heating tube. Microcontroller 220 is an ESP32 series microcontroller. Temperature sensor 130 is a Lufft WS700.

[0037] like Figure 1-3 As shown, a viewing window is provided through the cover 210, allowing operators to visually observe the state of the paper during drying and to monitor for any abnormalities in real time. An interceptor mesh inside the air inlet duct 280 prevents external airborne debris such as dust or insects from entering, ensuring the cleanliness of the hot air and preventing debris from adhering to the paper surface. A temperature sensor 130 is connected to a microcontroller 220, which collects hot air temperature data in real time and transmits it to the microcontroller 220, providing accurate data for temperature control. The microcontroller 220 is connected to the electric heating element 250, centrifugal fan 230, and geared motor 142, enabling unified control of these components and improving the automation level of the equipment. The electric heating element 250 is made of stainless steel finned heating tube, which has excellent thermal conductivity and corrosion resistance, allowing for rapid and uniform heating of the air and improving drying efficiency.

[0038] In operation, the printed paper to be dried is first placed on the conveyor roller 120 and positioned by the limiting roller 111. Then, the microcontroller 220 starts the geared motor 142, which drives the winding roller 143 to rotate and wind up the paper. This winding process ensures the paper is conveyed at a uniform speed on the conveyor roller 120, improving work efficiency. During paper transport, the centrifugal fan 230 draws in external air and introduces it into the heating chamber 240. The electric heating tube 250 heats the air inside the heating chamber 240, generating high-temperature hot air. This hot air is then distributed to the nozzles 270 through the distributor 260, evenly blowing it onto the paper surface for rapid and uniform drying. The drying process is effective, and the temperature sensor 130 monitors the hot air temperature in real time and transmits the signal to the microcontroller 220. The microcontroller adjusts the heating power of the electric heating tube 250 according to the preset program and temperature feedback to maintain a stable hot air temperature and achieve automatic temperature control. This ensures the quality of paper drying and prevents overheating or under-drying, effectively improving the quality of paper drying. After the paper is dried, the personnel can pull the limit frame 144, which drives the clamp 145 to disengage from the inner cavity of the winding roller 143, making it easier for personnel to remove the wound paper from the surface of the winding roller 143. This improves the convenience and flatness of collecting the dried paper.

[0039] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0040] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A drying apparatus for paper printing, characterized in that: include The conveying unit (100) includes a support (110), a conveying roller (120) movably connected to the inner cavity of the support (110) via a bearing, a temperature sensor (130) disposed on the front and back sides of the inner cavity of the support (110) for real-time monitoring of hot air temperature, and a winding assembly (140) disposed on one side of the support (110) for winding paper. The hot air drying unit (200) includes a housing (210), a microcontroller (220) disposed on one side of the housing (210), a centrifugal fan (230) fixedly connected to the top of the housing (210), a heating box (240) connected to the air inlet of the centrifugal fan (230), an electric heating tube (250) disposed in the inner cavity of the heating box (240), a diverter pipe (260) connected to the air outlet of the centrifugal fan (230), a nozzle (270) connected to the bottom of the diverter pipe (260) and connected to the inner cavity of the housing (210), and an air inlet pipe (280) connected to one side of the heating box (240).

2. The paper printing drying apparatus as described in claim 1, characterized in that: The cover (210) is movably connected to the bracket (110) via a hinge. The lower end of one side of the bracket (110) is movably connected to a limiting roller (111) via a bearing. Both the limiting roller (111) and the conveying roller (120) are in contact with the paper.

3. The drying apparatus for paper printing as described in claim 1, characterized in that: The winding assembly (140) includes a fixed frame (141) fixedly connected to one side of the bracket (110), a geared motor (142) fixedly connected to the front of the fixed frame (141), a winding roller (143) drivenly connected to the output shaft of the geared motor (142), a chuck (145) movably connected to the inner cavity of the winding roller (143), and a limiting frame (144) movably connected to the chuck (145) via a bearing.

4. The drying apparatus for paper printing as described in claim 1, characterized in that: A viewing window is provided at the lower end of the front of the cover (210), and an intercepting net is fixedly connected to the inner cavity of the air inlet pipe (280).

5. The drying apparatus for paper printing as described in claim 1, characterized in that: The output of the temperature sensor (130) is connected to the input of the microcontroller (220), and the output of the microcontroller (220) is connected to the input of the electric heating tube (250) and the geared motor (142).

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