Drying mechanism for coated paper coated with film

Abstract

The utility model relates to a drying mechanism for laminated paper after lamination. The device comprises a base, a negative pressure platform assembly arranged on the base, a first heating module fixedly arranged on the upper side of the negative pressure platform assembly and a traction assembly, and the traction assembly can enable coated paper to penetrate through a gap between the negative pressure platform assembly and the first heating module; the negative pressure platform assembly comprises a second heating module arranged on the base, a heating cover arranged on the upper side of the second heating module in a covering mode and an air draft module arranged on the base, a negative pressure cavity is formed in the heating cover, the air draft end of the air draft module is communicated with the negative pressure cavity, the upper surface of the heating cover is a horizontal plane, and a plurality of through air vents are formed in the heating cover. The heating module I can directly heat and dry the upper surface of the coated paper, the heating module II can directly heat the heating cover, the coated paper is adsorbed on the upper surface of the heating cover, and the direct contact heat exchange has high heat conduction efficiency, so that the drying efficiency can be obviously improved.

Description

Technical Field

[0001] This utility model relates to a drying mechanism, and more particularly to a drying mechanism for coated paper after coating. Background Technology

[0002] The production process of coated paper requires sequential coating and drying processes. The drying process is used to dry and solidify the liquid coating on the coated paper. Common drying modules in existing dryers mainly employ three drying methods: thermal radiation drying, hot air drying, and combined drying. Combined drying includes both thermal radiation drying and hot air drying. The dryer also contains a roller-type traction assembly. The coated paper passes through the drying zone via this assembly. To improve drying efficiency, drying modules are typically placed on both the top and bottom of the coated paper. However, due to the obstruction of the rollers on the bottom of the coated paper, its actual heat transfer efficiency is far lower than that of the top area. Summary of the Invention

[0003] This invention provides a drying mechanism for coated paper after coating; it solves the problem in the prior art where the actual heat transfer efficiency is low due to the obstruction of the rollers during the drying process of coated paper.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a drying mechanism for coated paper after coating, including a base, a negative pressure platform assembly disposed on the base, a heating module one fixedly disposed on the upper side of the negative pressure platform assembly, and a traction assembly, wherein the traction assembly can pass the coated paper through the gap between the negative pressure platform assembly and the heating module one; the negative pressure platform assembly includes a heating module two disposed on the base, a heating cover covering the heating module two, and an exhaust module disposed on the base, wherein a negative pressure cavity is formed inside the heating cover, the exhaust end of the exhaust module is connected to the negative pressure cavity, the upper surface of the heating cover is a horizontal plane, and the heating cover is provided with a plurality of through vents.

[0005] This utility model includes a heating module one and a heating module two distributed vertically. Heating module one can directly heat and dry the upper surface of the coated paper, while heating module two can directly heat the heating cover. After the exhaust module is turned on, the negative pressure chamber generates negative pressure. The air vent is connected to the negative pressure chamber, which can adsorb the coated paper onto the upper surface of the heating cover. In this way, the back of the coated paper directly exchanges heat with the heating cover. The contact area between the coated paper and the heating cover is large, and this direct contact heat exchange has a high heat conduction efficiency, which can significantly improve the drying efficiency.

[0006] Furthermore, the exhaust end of the exhaust module extends to one of the heating modules and is arranged to exhaust downwards. The air in the negative pressure chamber is heated by the heating module, so the gas extracted by the exhaust module also has a certain amount of heat. This hot air is guided to one of the heating modules and blown towards the front of the coated paper, which can significantly improve the evaporation efficiency of the coating and promote the curing rate.

[0007] Furthermore, the heating module includes a heat pipe mounting base, a reflective groove disposed thereon, and an infrared heat pipe disposed within the reflective groove, the reflective groove being positioned directly opposite the coated paper. When the infrared heat pipe is energized, it generates thermal radiation, achieving a high efficiency in converting electrical energy into heat energy. Moreover, the reflective groove can concentrate the dissipated thermal radiation onto the coated paper through reflection, thereby improving energy utilization.

[0008] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model includes a heating module one and a heating module two distributed vertically. Heating module one can directly heat and dry the upper surface of the coated paper, while heating module two can directly heat the heating cover. The coated paper is adsorbed on the upper surface of the heating cover. Such direct contact heat exchange has a high heat conduction efficiency, which can significantly improve the drying efficiency; 2. The air in the negative pressure chamber is heated by heating module two. This hot air is guided to one of the heating modules and blown towards the front of the coated paper, which can significantly improve the evaporation efficiency of the coating and promote the curing rate. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 It is attached Figure 1 Enlarged view of part A in the image;

[0011] Figure 3 This is a structural diagram of the negative pressure platform component. Detailed Implementation

[0012] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0013] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0014] Example 1: See Figure 1 , Figure 2 and Figure 3 A drying mechanism for coated paper after coating includes a base 100, a negative pressure platform assembly 200 disposed on the base, a heating module 301 fixedly disposed on the upper side of the negative pressure platform assembly, and a traction assembly. The traction assembly includes a front guide roller 401 located in front of the negative pressure platform assembly, a first pressure roller 402 located behind the negative pressure platform assembly, and a second pressure roller 403. The traction assembly can pass the coated paper through the gap between the negative pressure platform assembly and the heating module 302. The negative pressure platform assembly includes a heating module 302 disposed on the base, a heating cover 210 covering the heating module 302, and an exhaust module 220 disposed on the base. A negative pressure cavity 230 is formed inside the heating cover. The exhaust end of the exhaust module is connected to the negative pressure cavity. The upper surface of the heating cover is a horizontal plane, and the heating cover is provided with a plurality of through vents 211.

[0015] This embodiment includes a heating module one and a heating module two distributed vertically. Heating module one can directly heat and dry the upper surface of the coated paper, while heating module two can directly heat the heating cover. After the exhaust module is turned on, the negative pressure chamber generates negative pressure. The vent is connected to the negative pressure chamber, which can adsorb the coated paper onto the upper surface of the heating cover. In this way, the back of the coated paper directly exchanges heat with the heating cover. The contact area between the coated paper and the heating cover is large, and this direct contact heat exchange has a high heat conduction efficiency, which can significantly improve the drying efficiency.

[0016] See Figure 1 The exhaust end of the exhaust module extends to one of the heating modules and is vented downwards. The exhaust module specifically includes an exhaust fan 221, an exhaust pipe 222, and an exhaust pipe 223. The air in the negative pressure chamber is heated by the heating module, so the gas extracted by the exhaust module also has a certain amount of heat. This hot air is guided to one of the heating modules and blown towards the front of the coated paper, which can significantly improve the evaporation efficiency of the coating and promote the curing rate.

[0017] See Figure 2The heating module includes a heat pipe mounting base 310, a reflective groove 320 disposed thereon, and an infrared heat pipe 330 disposed within the reflective groove. The reflective groove is positioned directly opposite the coated paper. When the infrared heat pipe is energized, it can generate thermal radiation, and the efficiency of converting electrical energy into thermal energy is relatively high. Moreover, the reflective groove can concentrate the diffused thermal radiation onto the coated paper as much as possible through the reflection effect, thereby improving energy utilization.

[0018] See Figure 3 The vents are linear and elongated, and are arranged in an oblique array.

[0019] See Figure 2 An air chamber 110 is provided on the base and at the bottom of the second heating module. An air passage 224 that passes through the heat pipe mounting seat is connected between the air chamber and the negative pressure chamber. The exhaust end of the exhaust module is connected to the air chamber.

[0020] See Figure 2 The heat pipe mounting base on the heating module 1 is provided with a vertically penetrating air duct 225. The lower opening of the air duct 1 is located in the reflector groove. The exhaust end of the exhaust module is connected to the upper opening of the air duct 1, so that the airflow will be further heated by the infrared heat pipe on the heating module 1.

[0021] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A drying mechanism for coated paper after coating, characterized in that: The device includes a base, a negative pressure platform assembly mounted on the base, a heating module one fixedly mounted on the upper side of the negative pressure platform assembly, and a traction assembly. The traction assembly allows the coated paper to pass through the gap between the negative pressure platform assembly and the heating module one. The negative pressure platform assembly includes a heating module two mounted on the base, a heating cover covering the heating module two, and an exhaust module mounted on the base. A negative pressure cavity is formed inside the heating cover, and the exhaust end of the exhaust module communicates with the negative pressure cavity. The upper surface of the heating cover is horizontal, and the heating cover has several through vents.

2. The drying mechanism for coated paper after coating according to claim 1, characterized in that: The exhaust end of the exhaust module extends to one of the heating modules and is configured to exhaust downwards.

3. The drying mechanism for coated paper after coating according to claim 2, characterized in that: The heating module includes a heat pipe mounting base, a reflective groove disposed thereon, and an infrared heat pipe disposed within the reflective groove, wherein the reflective groove is positioned directly opposite the coated paper.

4. The drying mechanism for coated paper after coating according to claim 1, characterized in that: The vents are linear and elongated, and are arranged in an oblique array.

5. The drying mechanism for coated paper after coating according to claim 3, characterized in that: An air chamber is provided on the base and at the bottom of the second heating module. The air chamber is connected to the negative pressure chamber by an air passage that passes through the heat pipe mounting seat. The exhaust end of the exhaust module is connected to the air chamber.

6. The drying mechanism for coated paper after coating according to claim 5, characterized in that: The heat pipe mounting base on the heating module is provided with a vertically penetrating air passage. The lower opening of the air passage is located in the reflector groove, and the exhaust end of the exhaust module is connected to the upper opening of the air passage.

7. The drying mechanism for coated paper after coating according to claim 1, characterized in that: The traction assembly includes a front guide roller located in front of the negative pressure platform assembly, and a first pressure roller and a second pressure roller located behind the negative pressure platform assembly.

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