A composite paper can drying and curing device

Abstract

This utility model discloses a composite paper can drying and curing device, including a conveyor belt and a drying fan. A straightening device and a mounting frame are sequentially mounted on the conveyor belt from front to back. The straightening device includes a pair of straightening baffles and a bidirectional threaded rod for lateral rotation. The pair of straightening baffles are adjustable above the conveyor belt via the bidirectional threaded rod. The mounting frame includes a first air guide structure and a second air guide structure. The first air guide structure is located on the upper inner side of the mounting frame, and the second air guide structure is located on both sides of the conveyor belt inside the mounting frame. The drying fan is mounted on the upper surface of the mounting frame and directly above the first air guide structure. This utility model guides the hot air from the drying fan into the inside of the paper can through the first air guide structure and guides another portion of the hot air to the outer side of the paper can through the second air guide structure, simultaneously drying both the inner and outer sides of the paper can. This ensures consistent drying levels inside and outside the paper can and improves drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of paper can drying technology, specifically a composite paper can drying and curing device. Background Technology

[0002] In the paper can manufacturing industry, the main raw materials are fibrous materials such as kraft paper and cardboard. The production process involves multiple steps, including rolling, interlayer bonding, and sealing the bottom and top. Because paper fibers are highly absorbent, the water-based adhesives applied during processing (such as white glue) and ambient humidity can cause a sharp increase in the moisture content of the paper can substrate. If not dried and cured, the paper fibers will expand due to moisture, generating stress that leads to can deformation and decreased dimensional accuracy. Uncured adhesives are prone to delamination and separation, significantly reducing structural strength. Simultaneously, a humid environment can promote mold growth, contaminating the contents and shortening the can's lifespan. Therefore, a drying device is needed to quickly cure the adhesive on the paper can.

[0003] In the prior art, utility model patent application number CN202222937231.8 discloses a drying device for paper can processing, including a box body with material inlets on both sides. A drying mechanism is installed inside the box body, located on one side where two first guide rollers are close together. The drying mechanism includes two adjusting components installed inside the box body, two heating components installed between the two adjusting components, and two second guide rollers installed between the two adjusting components. This drying device for paper can processing allows for flexible adjustment of the drying temperature and time of the paper strip, achieving uniform drying of paper strips of different thicknesses, avoiding over-drying or incomplete drying, and further improving the drying efficiency of the device for paper strips of different thicknesses.

[0004] The aforementioned patent discloses a device for drying and curing paper cans. This device allows for flexible adjustment of drying temperature and time, thereby improving drying efficiency. However, when drying and curing paper cans, the drying heat acts directly on the surface of the paper cans, without directly drying the interior. This results in the paper cans drying gradually from the outside in, leading to low drying efficiency and potentially inconsistent drying levels between the outside and inside of the paper cans; further improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a composite paper can drying and curing device, which aims to improve the existing paper can drying and curing devices that can only directly heat and dry the surface of the paper can, and cannot specifically dry the inside of the paper can, resulting in low drying efficiency and inconsistent drying degree inside and outside the paper can.

[0006] This utility model is implemented as follows:

[0007] A composite paper can drying and curing device includes a conveyor belt and a drying fan. A straightening device and a mounting frame are sequentially mounted on the conveyor belt from front to back. The straightening device includes a pair of straightening baffles and a bidirectional threaded rod that is laterally rotatable. The pair of straightening baffles are adjustable above the conveyor belt via the bidirectional threaded rod. The mounting frame includes a first air guide structure and a second air guide structure. The first air guide structure is located on the upper inner side of the mounting frame, and the second air guide structure is located on both sides of the conveyor belt inside the mounting frame. The drying fan is mounted on the upper surface of the mounting frame and is located directly above the first air guide structure.

[0008] Preferably, the straightening device includes a pair of side support plates, which are symmetrically arranged on both sides of the conveyor belt. A bidirectional threaded rod is rotatably arranged between the pair of side support plates, and one end of the bidirectional threaded rod is connected to a first motor.

[0009] Preferably, the aligning baffle includes an aligning frame, the back of the aligning baffle is provided with the aligning frame, the aligning frame is provided with a threaded hole corresponding to the position of the bidirectional threaded rod, the aligning frame is threadedly installed on the bidirectional threaded rod through the threaded hole, and a pair of side support plates can move in the same or opposite directions through the corresponding aligning frame.

[0010] Preferably, the straightening device further includes a slide bar, and a slide bar located on both sides of the bidirectional threaded rod is provided between the pair of side support plates, and the pair of straightening baffles are limited and guided to move by the slide bar.

[0011] Preferably, the sizing frame is provided with a sliding hole at the position corresponding to the slide rod, and the sizing frame is slidably mounted on the slide rod through the sliding hole.

[0012] Preferably, the mounting frame includes mounting openings, and multiple mounting openings are sequentially formed on the upper surface of the mounting frame along its length. The first air guide structure is located below the mounting openings, and the drying fan is installed in the mounting openings.

[0013] Preferably, the first air guiding structure includes an inner air guiding surface and an outer air guiding surface. The middle part of the first air guiding structure is provided with an inner air guiding surface with a gradually decreasing diameter, and the outer air guiding surface is provided at an angle on the outside.

[0014] Preferably, the outer air guide surface includes multiple mounting rods, and multiple mounting rods are sequentially arranged along the circumferential direction on the upper end surface of the outer air guide surface, with the upper ends of the mounting rods fixedly mounted on the mounting frame.

[0015] Preferably, the second air guide structure is a straight plate structure, and the second air guide structure is installed obliquely on the inner side of the mounting frame, with the lower end of the outer air guide surface located on the upper end surface of the second air guide structure.

[0016] Preferably, the drying fan includes a fan housing, which is a shell with an opening at the bottom. Inside the fan housing, fan blades and a heating coil are arranged sequentially from top to bottom. A second motor is installed on the upper surface of the fan housing. The output shaft of the second motor passes through the fan housing and extends into the interior to connect with the fan blades. The heating coil is connected to a temperature controller.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting a first air guide structure and a second air guide structure on the mounting frame, allows the hot air from the drying fan to be guided into the inside of the paper can through the first air guide structure, and another part of the hot air to be guided to the outer side of the paper can through the second air guide structure. This allows the inside and outside of the paper can to be dried simultaneously, thereby ensuring that the drying degree inside and outside the paper can is consistent and improving the drying efficiency.

[0019] 2. By setting up a regulating device, this utility model can automatically adjust the paper can placed on the conveyor belt to the middle position of the conveyor belt, so that the paper can accurately pass under the first air guide structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the conveyor belt and straightening device of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the regulating baffle and regulating frame of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0024] Figure 5 This is a front structural diagram of the mounting bracket of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the drying fan of this utility model.

[0026] In the diagram: 1. Conveyor belt; 2. Straightening device; 201. Side support plate; 202. Slide bar; 203. Bidirectional threaded rod; 204. Straightening baffle; 205. First motor; 206. Straightening frame; 207. Sliding hole; 208. Threaded hole; 3. Mounting frame; 301. Mounting port; 302. First air guide structure; 303. Second air guide structure; 304. Inner air guide surface; 305. Outer air guide surface; 306. Mounting connecting rod; 4. Drying fan; 401. Fan housing; 402. Fan blade; 403. Heating coil; 404. Temperature controller; 405. Second motor. Detailed Implementation

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0029] Example 1

[0030] like Figures 1-3 As shown, a composite paper can drying and curing device includes a conveyor belt 1 and a drying fan 4. A straightening device 2 and a mounting frame 3 are sequentially mounted on the conveyor belt 1 from front to back. The straightening device 2 includes a pair of straightening baffles 204, and a bidirectional threaded rod 203 is laterally rotatably mounted on the straightening device 2. The pair of straightening baffles 204 are adjustablely positioned above the conveyor belt 1 via the bidirectional threaded rod 203. The straightening device 2 also includes a pair of side support plates 201, symmetrically arranged on both sides of the conveyor belt 1. A bidirectional threaded rod 203 is rotatably mounted between the pair of side support plates 201, and one end of the bidirectional threaded rod 203 is connected to a first motor 205. The straightening device 2 further includes a sliding rod 202, with sliding rods 202 positioned on both sides of the bidirectional threaded rod 203 between the pair of side support plates 201. The pair of straightening baffles 204 are limited and guided to move via the sliding rods 202. The leveling baffle 204 includes a leveling frame 206, which is located on the back of the leveling baffle 204. The leveling frame 206 has a threaded hole 208 corresponding to the position of the bidirectional threaded rod 203, and a sliding hole 207 corresponding to the position of the sliding rod 202. The leveling frame 206 is threaded onto the bidirectional threaded rod 203 through the threaded hole 208 and slidably mounted onto the sliding rod 202 through the sliding hole 207. A pair of leveling baffles 204 are threaded onto the bidirectional threaded rod 203. The thread directions of the threaded holes on the pair of leveling baffles 204 are opposite, allowing the first motor 205 to drive the bidirectional threaded rod 203 to rotate. This rotation, in turn, causes the pair of leveling baffles 204 to move in the same or opposite directions, thus adjusting the distance between the pair of leveling baffles 204. By placing the paper can vertically on the conveyor belt 1, the position of the conveyor belt 1 can be adjusted by a pair of regularizing baffles 204 during the movement, so that the paper can automatically return to the center position of the conveyor belt 1.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the mounting frame 3 includes a first air guide structure 302 and a second air guide structure 303. The first air guide structure 302 is located on the upper inner side of the mounting frame 3, and the second air guide structure 303 is located on both sides of the conveyor belt 1 on the inner side of the mounting frame 3. The mounting frame 3 includes a mounting port 301, and the drying fan 4 is installed in the mounting port 301 by welding or bolts. Multiple mounting ports 301 are sequentially opened on the upper end surface of the mounting frame 3 along its length. The first air guide structure 302 is located below the mounting port 301, and the drying fan 4 is installed in the mounting port 301. The first air guide structure 302 includes an inner air guide surface 304 and an outer air guide surface 305. The inner air guide surface 304 with a gradually decreasing diameter is provided in the middle of the first air guide structure 302, and the outer air guide surface 305 is inclined on the outer side. Multiple mounting connecting rods 306 are sequentially arranged on the upper end surface of the outer air guide surface 305 along its circumference, and the upper ends of the mounting connecting rods 306 are fixedly mounted on the mounting frame 3. The second air guide structure 303 is a straight plate structure. It is installed at an angle on the inner side of the mounting frame 3, and the lower end of the outer air guide surface 305 is located on the upper end surface of the second air guide structure 303. The first air guide structure 302 is located in the middle of the transverse direction of the conveyor belt 1. During the movement of the paper can, it will be located directly below the first air guide structure 302. The drying hot air delivered by the drying fan 4 can be delivered to the inside of the paper can through the inner air guide surface 304 via the first air guide structure 302, and a portion of the hot air can be delivered to the outside through the outer air guide surface 305. Then, the hot air can be delivered to the outer side of the paper can through the second air guide structure 303, thereby drying the inside and outside of the paper can simultaneously.

[0032] like Figure 1 , Figure 4 and Figure 6 As shown, the drying fan 4 is installed on the upper surface of the mounting frame 3 and is located directly above the first air guide structure 302. The drying fan 4 includes a fan housing 401, which is an open-bottom shell. Inside the fan housing 401, from top to bottom, fan blades 402 and heating coils 403 are arranged sequentially. A second motor 405 is installed on the upper surface of the fan housing 401. The output shaft of the second motor 405 extends through the fan housing 401 and connects to the fan blades 402. The heating coil 403 is connected to a temperature controller 404. The heating method of the heating coil 403 is resistance heating. The temperature controller 404 is an intelligent temperature controller with a display screen. The temperature controller 404 controls the temperature by controlling the current on the heating coil 403. Furthermore, by controlling the rotation speed of the conveyor belt 1, the time it takes for the paper can to pass through the area of ​​the mounting frame 3 can be adjusted, thereby controlling the drying time by controlling the rotation speed of the conveyor belt 1.

[0033] Example 2

[0034] like Figures 1-3As shown, a composite paper can drying and curing device includes a conveyor belt 1 and a drying fan 4. A straightening device 2 and a mounting frame 3 are sequentially mounted on the conveyor belt 1 from front to back. The straightening device 2 includes a pair of straightening baffles 204, and a bidirectional threaded rod 203 is laterally rotatably mounted on the straightening device 2. The pair of straightening baffles 204 are adjustablely positioned above the conveyor belt 1 via the bidirectional threaded rod 203. The straightening device 2 also includes a pair of side support plates 201, symmetrically arranged on both sides of the conveyor belt 1. A bidirectional threaded rod 203 is rotatably mounted between the pair of side support plates 201, and one end of the bidirectional threaded rod 203 is connected to a first motor 205. The straightening device 2 further includes a sliding rod 202, with sliding rods 202 positioned on both sides of the bidirectional threaded rod 203 between the pair of side support plates 201. The pair of straightening baffles 204 are limited and guided to move via the sliding rods 202. The aligning baffle 204 includes an aligning frame 206. The aligning frame 206 is provided on the back of the aligning baffle 204. The aligning frame 206 is provided with a threaded hole 208 corresponding to the position of the bidirectional threaded rod 203. The aligning frame 206 is provided with a sliding hole 207 corresponding to the position of the sliding rod 202. The aligning frame 206 is threaded onto the bidirectional threaded rod 203 through the threaded hole 208 and slidably mounted onto the sliding rod 202 through the sliding hole 207.

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, the mounting frame 3 includes a first air guide structure 302 and a second air guide structure 303. The first air guide structure 302 is located on the upper inner side of the mounting frame 3, and the second air guide structure 303 is located on both sides of the conveyor belt 1 on the inner side of the mounting frame 3. The mounting frame 3 includes mounting openings 301. Multiple mounting openings 301 are sequentially formed along the length of the upper end surface of the mounting frame 3. The first air guide structure 302 is located below the mounting openings 301, and the drying fan 4 is installed in the mounting openings 301. The first air guide structure 302 includes an inner air guide surface 304 and an outer air guide surface 305. The inner air guide surface 304 with a gradually decreasing diameter is provided in the middle of the first air guide structure 302, and the outer air guide surface 305 is inclined on the outer side. Multiple mounting connecting rods 306 are sequentially formed along the circumference of the upper end surface of the outer air guide surface 305, and the upper ends of the mounting connecting rods 306 are fixedly mounted on the mounting frame 3. The second air guide structure 303 is a straight plate structure. The second air guide structure 303 is installed at an angle on the inner side of the mounting bracket 3, and the lower end of the outer air guide surface 305 is located on the upper end surface of the second air guide structure 303.

[0036] like Figure 1 , Figure 4 and Figure 6As shown, the drying fan 4 is installed on the upper surface of the mounting bracket 3 and is located directly above the first air guide structure 302. The drying fan 4 includes a fan housing 401, which is an open-bottom shell. Inside the fan housing 401, from top to bottom, fan blades 402 and heating coils 403 are arranged sequentially. A second motor 405 is installed on the upper surface of the fan housing 401. The output shaft of the second motor 405 extends through the fan housing 401 and connects to the fan blades 402. The heating coils 403 are connected to a temperature controller 404.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite paper can drying and curing apparatus comprising a conveyor belt (1), characterized in that, It also includes a drying fan (4), and a straightening device (2) and a mounting frame (3) are installed on the conveyor belt (1) from front to back; the straightening device (2) includes a pair of straightening baffles (204), and the straightening device (2) is rotatably provided with a bidirectional threaded rod (203). The pair of straightening baffles (204) are adjustablely positioned above the conveyor belt (1) through the bidirectional threaded rod (203); the mounting frame (3) includes a first air guide structure (302) and a second air guide structure (303). The first air guide structure (302) is located on the upper inner side of the mounting frame (3), and the second air guide structure (303) is located on the inner side of the mounting frame (3) on both sides of the conveyor belt (1); the drying fan (4) is installed on the upper surface of the mounting frame (3) and is located directly above the first air guide structure (302).

2. A composite paper can drying and curing apparatus according to claim 1, wherein The straightening device (2) includes a pair of side support plates (201), which are symmetrically arranged on both sides of the conveyor belt (1). A bidirectional threaded rod (203) is rotatably arranged between the pair of side support plates (201), and one end of the bidirectional threaded rod (203) is connected to a first motor (205).

3. A composite paper can drying and curing apparatus according to claim 2, wherein The aligning baffle (204) includes an aligning frame (206). The aligning frame (206) is provided on the back of the aligning baffle (204). The aligning frame (206) is provided with a threaded hole (208) at the position corresponding to the bidirectional threaded rod (203). The aligning frame (206) is threaded onto the bidirectional threaded rod (203) through the threaded hole (208). A pair of side support plates (201) can move in the same or opposite directions through the corresponding aligning frames (206).

4. A composite paper can drying and curing apparatus according to claim 3, wherein The straightening device (2) also includes a slide rod (202), and a slide rod (202) is provided between a pair of side support plates (201) on both sides of the bidirectional threaded rod (203). A pair of straightening baffles (204) are limited and guided to move by the slide rod (202).

5. A composite paper can drying and curing apparatus according to claim 4 wherein, The sizing frame (206) is provided with a sliding hole (207) at the position corresponding to the slide rod (202), and the sizing frame (206) is slidably installed on the slide rod (202) through the sliding hole (207).

6. A composite paper can drying and curing apparatus according to claim 1 wherein, The mounting frame (3) includes a mounting port (301). Multiple mounting ports (301) are sequentially opened on the upper surface of the mounting frame (3) along its length direction. The first air guide structure (302) is located below the mounting port (301). The drying fan (4) is installed in the mounting port (301).

7. A composite paper can drying and curing apparatus according to claim 6 wherein, The first air guide structure (302) includes an inner air guide surface (304) and an outer air guide surface (305). The middle part of the first air guide structure (302) is provided with an inner air guide surface (304) with a gradually decreasing diameter, and the outer air guide surface (305) is provided at an angle on the outside.

8. A composite paper can drying and curing apparatus according to claim 7, wherein The outer air guide surface (305) includes multiple mounting rods (306). Multiple mounting rods (306) are arranged sequentially along the circumferential direction on the upper surface of the outer air guide surface (305). The upper ends of the mounting rods (306) are fixedly mounted on the mounting frame (3).

9. A composite paper can drying and curing apparatus according to claim 8, wherein, The second air guide structure (303) is a straight plate structure. The second air guide structure (303) is installed obliquely on the inner side of the mounting bracket (3). The lower end of the outer air guide surface (305) is located on the upper end surface of the second air guide structure (303).

10. A composite paper can drying and curing apparatus according to claim 1 wherein, The drying fan (4) includes a fan housing (401), which is a shell with an opening at the bottom. Inside the fan housing (401), fan blades (402) and heating tube coils (403) are arranged sequentially from top to bottom. A second motor (405) is installed on the upper surface of the fan housing (401). The output shaft of the second motor (405) extends through the fan housing (401) and connects to the fan blades (402). The heating tube coils (403) are connected to a temperature controller (404).

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