Paper product drying device

Abstract

The utility model discloses a paper product drying device, and particularly relates to the field of paper product processing, the paper product drying device comprises a mounting rack, a pair of vertical plates of the mounting rack are rotatably provided with a drying cylinder, a thermal medium circulates in the drying cylinder, the outside of the drying cylinder is wrapped with a moisture absorber, the top of the moisture absorber is communicated with an exhaust fan, and the exhaust fan is communicated with a water pump. A downward pressing and attaching mechanism is arranged at the top of the drying cylinder, a horizontal unfolding mechanism is installed on the other pair of vertical plates of the installation frame, a paper roll is clamped between the drying cylinder and the downward pressing and attaching mechanism, the other end of the paper roll is clamped by the horizontal unfolding mechanism, and a plurality of evenly-distributed thin seams are formed in the annular wall, facing the drying cylinder, of the moisture absorber. According to the paper product drying device, due to the cooperative effect of heating and dehumidifying, the drying efficiency of the paper roll is improved.

Description

Technical Field

[0001] The utility model belongs to the field of paper product processing, and specifically relates to a paper product drying device. Background Art

[0002] Paper products are often made from paper rolls, which need to be dried during production. Since paper rolls are long, they are usually dried in sections. Existing paper roll drying devices usually only have a heating function and cannot promptly remove the water vapor generated by heating, resulting in low drying efficiency.

[0003] For example, the Chinese patent with publication number CN110080029A, a paper roll rapid drying and winding device for papermaking, which "includes a frame, a drying box, a plurality of conveying rollers, a heating roller, a radiation heating device, a paper feed roller group, and a winding device. The upper end of the frame is provided with a drying box, and the side walls of the drying box are respectively provided with a paper feed port and a paper outlet. The side of the drying box is provided with a paper feed roller group that can cooperate with the paper feed port near the paper feed port." Only a heating device (heating roller and radiation heating device) is provided, which cannot discharge the water vapor generated by heating, affecting the drying efficiency of the paper roll. Therefore, a new paper product drying device is needed. Utility Model Content

[0004] In order to solve the above problems, the utility model discloses a paper product drying device.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] A paper product drying device comprises a mounting frame, a drying cylinder is rotatably mounted on one of a pair of vertical plates of the mounting frame, a heat medium flows in the drying cylinder, a desiccant is wrapped on the outside of the drying cylinder, the top of the desiccant is connected to an exhaust fan, a downward pressing and bonding mechanism is arranged on the top of the drying cylinder, a horizontal unfolding mechanism is installed on another pair of vertical plates of the mounting frame, a paper roll is clamped between the drying cylinder and the downward pressing and bonding mechanism, and the other end of the paper roll is clamped by the horizontal unfolding mechanism, a plurality of evenly distributed slits are opened on the annular wall of the desiccant facing the drying cylinder, and the slits are bonded to the surface of part of the paper roll.

[0007] As a preferred technical solution of the utility model, the drying cylinder includes: a first cylinder body and a second cylinder body nested together, each of the first cylinder body and the second cylinder body is provided with a plurality of evenly distributed coaxial cylinders, and the cylinders of the first cylinder body and the second cylinder body are staggered to form a flow channel that zigzags from the periphery of the drying cylinder to the axis.

[0008] As a preferred technical solution of the utility model, the extension tubes of the first cylinder and the second cylinder are respectively coaxially fixed with a rotating bearing, and the outer ring of each rotating bearing is fixedly connected to the mounting frame, and the extension tubes of the first cylinder and the second cylinder are respectively embedded with a sealed bearing, and the inner ring of each sealed bearing is coaxially fixedly connected with a threaded connecting tube.

[0009] As a preferred technical solution of the utility model, a pair of vertical plates of the mounting frame for mounting the drying cylinder are respectively fixedly connected to an extension plate, and the downward pressure fitting mechanism includes: two first T-shaped sliders respectively vertically slidably installed in the two extension plates, the two first T-shaped sliders are jointly rotatably installed with a downward pressure cylinder, the top of each of the first T-shaped sliders is connected to a downward pressure spring, and the top end of each downward pressure spring is pressed against the extension plate.

[0010] As a preferred technical solution of the utility model, the horizontal unfolding mechanism includes: a fixed roller rotatably connected to the mounting frame, two second T-shaped sliders horizontally slidably installed in two vertical plates of the mounting frame, and the two second T-shaped sliders are jointly rotatably installed with a movable roller, and each of the second T-shaped sliders is connected to a horizontal spring on the side away from the fixed roller, and the other end of each horizontal spring is pressed against the mounting frame.

[0011] As a preferred technical solution of the utility model, the bottom of the desiccant is fixedly connected to the mounting frame.

[0012] As a preferred technical solution of the utility model, the bottom plate of the mounting frame is provided with a plurality of mounting through slots.

[0013] The beneficial effects of the utility model are:

[0014] 1. During drying, the heat medium flows into the inner cavity of the drying cylinder from the extension pipe of the second cylinder, flows back and forth from the outer periphery of the drying cylinder to the axis along the flow channel, and finally flows out from the extension pipe of the first cylinder to dry the paper roll attached to the outer surface of the drying cylinder. Thanks to the design of the flow channel, the high-temperature heat medium flowing into the inner cavity of the drying cylinder is as close to the paper roll as possible, which improves the heat transfer efficiency of the heat medium to the paper roll and dries the paper roll;

[0015] 2. While drying, turn on the exhaust fan to exhaust air from the desiccant. The desiccant takes in air from the horizontal end and evenly distributed slits, so that the slits that fit the surface of the paper roll can quickly absorb the water vapor generated by the drying of the paper roll. Thanks to the coordinated effect of heating and dehumidification, the paper roll can be dried quickly, thereby improving the drying efficiency of the paper roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model without the mounting frame, the exhaust fan and the extension plate;

[0018] Figure 3 This is a schematic diagram of the structure of the dehumidifying breather according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a drying drum, a downward pressing and laminating mechanism, a horizontal unfolding mechanism and a paper roll according to an embodiment of the utility model;

[0020] Figure 5 It is a cross-sectional view of a drying drum according to an embodiment of the utility model.

[0021] List of Figure Symbols:

[0022] 1. Mounting frame;

[0023] 2. Drying cylinder; 201. First cylinder; 202. Second cylinder; 203. Rotary bearing; 204. Sealed bearing; 205. Threaded connecting pipe;

[0024] 3. Pressing fitting mechanism; 301. Pressing cylinder; 302. First T-shaped slider; 303. Pressing spring;

[0025] 4. Horizontal unfolding mechanism; 401. Fixed roller; 402. Moving roller; 403. Second T-shaped slider; 404. Horizontal spring;

[0026] 5. Paper roll; 6. Desiccant; 7. Exhaust fan; 8. Extension board. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0028] See also Figure 1-5A paper product drying device includes a mounting frame 1, a pair of vertical plates of the mounting frame 1 are rotatably mounted with a drying cylinder 2, and a heat medium flows in the drying cylinder 2. The drying cylinder 2 with the heat medium flowing inside is used to heat and dry a paper roll 5, and the flowing heat medium can be liquid or gas. The outside of the drying cylinder 2 is wrapped with a desiccant 6, and the top of the desiccant 6 is connected to an exhaust fan 7. The exhaust fan 7 is used to exhaust air to the desiccant 6. A downward pressing and laminating mechanism 3 is provided on the top of the drying cylinder 2, and a horizontal unfolding mechanism 4 is installed on the other pair of vertical plates of the mounting frame 1. A paper roll 5 is sandwiched between the drying cylinder 2 and the downward pressing and laminating mechanism 3, and the other end of the paper roll 5 is clamped by the horizontal unfolding mechanism 4. The downward pressing and laminating mechanism 3 is used to initially lax the paper roll 5 on the outer surface of the drying cylinder 2. The horizontal unfolding mechanism 4 is used to reversely curl the dried paper roll 5 to make the paper roll 5 flatter. The arrangement of the downward pressing and laminating mechanism 3 and the horizontal unfolding mechanism 4 can prevent the paper roll 5 from loosening and detaching from the drying cylinder 2. The annular wall of the moisture absorber 6 facing the drying drum 2 is provided with a plurality of evenly distributed slits, and the slits are in contact with the surface of a portion of the paper roll 5. When the exhaust fan 7 exhausts air from the moisture absorber 6, the moisture absorber 6 takes in air from the horizontal end and the slits at the same time, so that the slits in contact with the surface of the paper roll 5 quickly absorb the water vapor generated by the drying of the paper roll 5.

[0029] The drying cylinder 2 comprises: a first cylinder 201 and a second cylinder 202 which are nested together, and the first cylinder 201 and the second cylinder 202 are both provided with a plurality of evenly distributed coaxial cylinders, and the cylinders of the first cylinder 201 and the second cylinder 202 are arranged in an interlaced manner to form a flow channel that flows in a zigzag manner from the periphery of the drying cylinder 2 to the axis. The heat medium flows into the inner cavity of the drying cylinder 2 from the extension pipe of the second cylinder 202, flows back and forth from the periphery of the drying cylinder 2 to the axis along the flow channel, and finally flows out from the extension pipe of the first cylinder 201. The extension pipe of the second cylinder 202 is provided with a plurality of through holes in the inner cavity of the drying cylinder 2 for the heat medium to flow to the periphery of the drying cylinder 2.

[0030] The extension tubes of the first cylinder 201 and the second cylinder 202 are respectively coaxially fixedly sleeved with a rotating bearing 203, and the outer ring of each rotating bearing 203 is fixedly connected to the mounting frame 1. The setting of the rotating bearing 203 improves the smoothness of the rotation of the drying cylinder 2. The extension tubes of the first cylinder 201 and the second cylinder 202 are respectively embedded with a sealed bearing 204, and the inner ring of each sealed bearing 204 is coaxially fixedly connected with a threaded connecting pipe 205. The threaded connecting pipe 205 is threadedly connected with a pipeline for conveying heat medium, and each threaded connecting pipe 205 is provided with a hexagonal nut for tightening when connecting the pipeline. The setting of the sealed bearing 204 makes it unnecessary for the pipeline for conveying heat medium to rotate continuously with the drying cylinder 2.

[0031] A pair of vertical plates of the mounting frame 1 for mounting the drying cylinder 2 are respectively fixedly connected with an extension plate 8, and the downward pressing and fitting mechanism 3 comprises: two first T-shaped sliders 302 respectively vertically slidably mounted in the two extension plates 8, the two first T-shaped sliders 302 are rotated together to install a downward pressing cylinder 301, and the top of each first T-shaped slider 302 is connected with a downward pressing spring 303, and the top of each downward pressing spring 303 is pressed against the extension plate 8. Under the elastic force of the downward pressing spring 303, the downward pressing cylinder 301 presses the paper roll 5 on the outer surface of the drying cylinder 2 with less pressure. The first T-shaped slider 302 and the extension plate 8 are both provided with mounting holes adapted to the downward pressing spring 303 to reduce the slippage of the downward pressing spring 303.

[0032] The horizontal unfolding mechanism 4 includes: a fixed roller 401 rotatably connected to the mounting frame 1, two second T-shaped sliders 403 respectively mounted horizontally and slidably in two vertical plates of the mounting frame 1, and the two second T-shaped sliders 403 are mounted with a movable roller 402 for rotation together, and each second T-shaped slider 403 is connected to a horizontal spring 404 on the side away from the fixed roller 401, and the other end of each horizontal spring 404 is pressed against the mounting frame 1. Under the elastic force of the horizontal spring 404, the fixed roller 401 and the movable roller 402 clamp the paper roll 5, and the clamping force is relatively small. The second T-shaped slider 403 and the mounting frame 1 are both provided with mounting holes adapted to the horizontal spring 404 to reduce the slippage of the horizontal spring 404.

[0033] The bottom of the desiccant 6 is fixedly connected to the mounting frame 1. The bottom plate of the mounting frame 1 is provided with a plurality of mounting slots. The mounting frame 1 is fixedly installed by bolts penetrating the mounting slots.

[0034] Working principle:

[0035] When in use, the paper roll 5 at the end of the horizontal unfolding mechanism 4 is slowly pulled to drive the drying cylinder 2 to rotate slowly. At the same time, the heat medium flows into the inner cavity of the drying cylinder 2 from the extension pipe of the second cylinder 202, flows back and forth along the flow channel from the outer periphery of the drying cylinder 2 to the axis, and finally flows out from the extension pipe of the first cylinder 201, so as to dry the paper roll 5 attached to the outer surface of the drying cylinder 2. At the same time, the exhaust fan 7 is turned on to exhaust the moisture absorber 6. The moisture absorber 6 takes in air from the horizontal end and the evenly distributed slits, so that the slits attached to the surface of the paper roll 5 quickly absorb the water vapor generated by the drying of the paper roll 5, thereby improving the drying efficiency of the paper roll 5.

[0036] While drying the paper roll 5, the pressing and laminating mechanism 3 presses the paper roll 5 down and fits it to the outer surface of the drying cylinder 2, and the horizontal unfolding mechanism 4 reversely curls the dried paper roll 5 to make the paper roll 5 unfold more smoothly. The clamping of the paper roll 5 by the pressing and laminating mechanism 3 and the horizontal unfolding mechanism 4 can prevent the paper roll 5 from loosening and detaching from the drying cylinder 2, thereby reducing the drying efficiency.

[0037] It should be noted that the above content only illustrates the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications all fall within the protection scope of the claims of the utility model.

Claims

1. A paper product drying device, comprising a mounting frame (1), characterized in that: A drying cylinder (2) is rotatably mounted on one of the pairs of vertical plates of the mounting frame (1), and a heat medium flows in the drying cylinder (2). A desiccant (6) is wrapped around the outside of the drying cylinder (2), and the top of the desiccant (6) is connected to an exhaust fan (7). A downward pressing and bonding mechanism (3) is arranged on the top of the drying cylinder (2). A horizontal unfolding mechanism (4) is installed on the other pair of vertical plates of the mounting frame (1). A paper roll (5) is clamped between the drying cylinder (2) and the downward pressing and bonding mechanism (3), and the other end of the paper roll (5) is clamped by the horizontal unfolding mechanism (4). The desiccant (6) is provided with a plurality of evenly distributed fine slits on the annular wall facing the drying cylinder (2), and the fine slits are in contact with the surface of a portion of the paper roll (5).

2. A paper product drying device according to claim 1, characterized in that: The drying cylinder (2) comprises: a first cylinder body (201) and a second cylinder body (202) which are nested together, wherein the first cylinder body (201) and the second cylinder body (202) are both provided with a plurality of evenly distributed coaxial cylinders, and the cylinders of the first cylinder body (201) and the second cylinder body (202) are arranged in a staggered manner to form a flow channel for zigzag flow from the periphery of the drying cylinder (2) to the axis.

3. A paper product drying device according to claim 2, characterized in that: The extension tubes of the first cylinder (201) and the second cylinder (202) are respectively coaxially fixedly sleeved with a rotating bearing (203), and the outer ring of each rotating bearing (203) is fixedly connected to the mounting frame (1); the extension tubes of the first cylinder (201) and the second cylinder (202) are respectively embedded with a sealing bearing (204), and the inner ring of each sealing bearing (204) is coaxially fixedly connected with a threaded connecting tube (205).

4. A paper product drying device according to claim 1, characterized in that: A pair of vertical plates of the mounting frame (1) for mounting the drying cylinder (2) are respectively fixedly connected to an extension plate (8), and the downward pressing and fitting mechanism (3) comprises: two first T-shaped sliders (302) respectively mounted vertically and slidably in the two extension plates (8), the two first T-shaped sliders (302) being jointly rotatably mounted with a downward pressing cylinder (301), the top of each of the first T-shaped sliders (302) being connected to a downward pressing spring (303), and the top end of each downward pressing spring (303) being pressed against the extension plate (8).

5. The paper product drying device according to claim 1, characterized in that: The horizontal unfolding mechanism (4) comprises: a fixed roller (401) rotatably connected to the mounting frame (1), two second T-shaped sliders (403) respectively mounted horizontally and slidably in two vertical plates of the mounting frame (1), the two second T-shaped sliders (403) being mounted with a movable roller (402) for rotation together, a horizontal spring (404) being connected to a side of each second T-shaped slider (403) away from the fixed roller (401), and the other end of each horizontal spring (404) being pressed against the mounting frame (1).

6. A paper product drying device according to claim 1, characterized in that: The bottom of the desiccant (6) is fixedly connected to the mounting frame (1).

7. The paper product drying device according to claim 1, characterized in that: The bottom plate of the mounting frame (1) is provided with a plurality of mounting through slots.

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