A paperboard drying device for carton production

Abstract

The utility model relates to paper box paperboard production technical field discloses a kind of paperboard drying device for paper box production, including drying cabinet, rotating shaft and threaded rod are rotatably connected between the top and bottom of the inner wall of drying cabinet, the outer surface of rotating shaft is fixedly provided with cabinet door. The utility model is cooperatively used by transmission mechanism, cabinet door, extrusion plate and threaded rod and other structures, the action of switch cabinet door can be utilized, the rising and lowering of extrusion plate automation is realized, the paperboard to be dried is clamped by the lowering of extrusion plate, so as to offset the non-uniform shrinkage stress caused by moisture content difference, prevent local warping deformation, avoid the paperboard deformation problem caused by lack of compaction during drying process of the paperboard to be dried, when opening cabinet door, extrusion plate is automatically reset to release pressure, and it is convenient for operator to quickly take and place paperboard, so as to improve the drying quality of paper box paperboard, also improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cardboard production technology, and in particular to a cardboard drying device for cardboard production. Background Technology

[0002] Paperboard, also known as cardboard, is a thick sheet of paper made from various pulps and composed of interwoven fibers. Paperboard is an indispensable part of cardboard boxes. After being dried, paperboard can be cut, glued and other processes to produce cardboard boxes.

[0003] For example, Chinese utility model patent application number 202420429151.8 discloses a drying device for cardboard production, belonging to the field of cardboard production technology. It includes a drying box, with a push-out mechanism fixedly connected to the inner bottom wall of the drying box. A six-layer wire mesh frame for placing cardboard is fixedly connected to the upper end of the push-out mechanism. A reciprocating translation mechanism is connected to the rear side of the drying box, with one end extending into the drying box and fixedly connected to a vertically arranged mounting plate. Seven heating rods arranged at equal intervals are fixedly connected to the front side of the mounting plate from top to bottom, extending into the six-layer wire mesh frame. In this utility model, the push-out mechanism pushes the six-layer wire mesh frame out of the drying box, facilitating the placement and removal of cardboard from the outside, preventing contact with high temperatures, and improving operational safety. The reciprocating translation mechanism drives the heating rods to reciprocate, improving the overall uniformity of cardboard drying.

[0004] In the process of using the above-mentioned patent, the heating rod is driven to move back and forth in the drying box by the reciprocating translation mechanism to uniformly heat and dry the damp cardboard on the six-layer wire mesh. However, the moisture content of the damp cardboard varies in different areas in the initial state. During the heating process, the part with lower moisture content dries and shrinks first, while the part with higher moisture content still retains a large humidity. Since the device does not have a cardboard pressing mechanism, the shrinkage stress of the faster drying part cannot be effectively constrained, resulting in local warping and deformation of the cardboard, which not only affects the flatness of the cardboard but also increases the scrap rate. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cardboard drying device for carton production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cardboard drying device for carton production, comprising a drying chamber, wherein a rotating shaft and a threaded rod are rotatably connected between the top and bottom of the inner wall of the drying chamber, a door is fixedly sleeved on the outer surface of the rotating shaft, a transmission mechanism is provided between the outer surface of the rotating shaft and the outer surface of the threaded rod, a plurality of threaded sleeves are threadedly connected to the outer surface of the threaded rod, a pressing mechanism is provided on one side of each of the plurality of threaded sleeves, a wire mesh frame is fixedly connected to the bottom of the inner wall of the drying chamber, and a drying mechanism is provided on one side of the drying chamber.

[0007] As a further description of the above technical solution: The transmission mechanism includes a first rotating wheel and a second rotating wheel. The first rotating wheel is fixedly sleeved on the outer surface of the rotating shaft, and the second rotating wheel is fixedly sleeved on the outer surface of the threaded rod. The first rotating wheel and the second rotating wheel are connected by a belt drive. Through the setting of the transmission structure, the extrusion plate can rise or fall as the box door is opened or closed.

[0008] As a further description of the above technical solution: The pressing mechanism includes a limiting plate fixedly installed on the top of the threaded sleeve. The front of the limiting plate has several insertion holes. A pressing plate is slidably connected inside the limiting plate. The pressing plate has insertion holes, and a pin is movably inserted into the insertion holes. By setting the pressing mechanism, the distance between the pressing plate and the wire frame can be adjusted according to the different thicknesses of the cardboard to be dried.

[0009] As a further description of the above technical solution: The extrusion plate is slidably connected to the grid frame, and the insertion holes are arranged linearly.

[0010] As a further description of the above technical solution: The drying mechanism includes a drive motor and a mounting frame. The drive motor is fixedly mounted on one side of the drying chamber. A reciprocating lead screw is fixedly connected to the output end of the drive motor. A lead screw sleeve is threaded onto the outer surface of the reciprocating lead screw. A mounting plate is fixedly connected to the front of the lead screw sleeve. Several heating rods are fixedly connected to the front of the mounting plate. By setting up the drying mechanism, the heating rods can reciprocate within the drying chamber, improving the overall uniformity of drying the cardboard.

[0011] As a further description of the above technical solution: The lead screw sleeve is slidably connected to the mounting frame, and the reciprocating lead screw is rotatably installed inside the mounting frame.

[0012] As a further description of the above technical solution: A circulating fan is fixedly installed on one side of the drying box, and an exhaust port is fixedly connected to the top of the drying box. The circulating fan enables hot air to flow evenly inside the box.

[0013] As a further description of the above technical solution: The drying oven has an inspection door on one side, which allows staff to easily adjust the height of the extrusion plate.

[0014] This utility model has the following beneficial effects: 1. Compared with existing technologies, this cardboard drying device for carton production, through the coordinated use of transmission mechanisms, door, extrusion plate, and threaded rod, can automatically raise and lower the extrusion plate by opening and closing the door. The lowering of the extrusion plate clamps the cardboard to be dried, thereby offsetting the non-uniform shrinkage stress caused by differences in moisture content, preventing local warping and deformation, and avoiding the problem of cardboard deformation caused by insufficient clamping during the drying process. When the door is opened, the extrusion plate automatically resets to release pressure, and it is convenient for operators to quickly pick up and put away cardboard, thereby improving the drying quality of cardboard and increasing production efficiency.

[0015] 2. Compared with the existing technology, the cardboard drying device for carton production allows manual adjustment of the height of the extrusion plate by pulling out the pin. This ensures that the extrusion plate can contact cardboard of different thicknesses to be dried while maintaining a fixed downward stroke. This achieves the limitation of the extrusion plate on cardboard of different thicknesses and greatly improves the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a cardboard drying device for carton production proposed in this utility model; Figure 2 This is a three-dimensional schematic diagram of the structure of the inspection door and heating rod of a cardboard drying device for carton production proposed in this utility model. Figure 3 This is a three-dimensional schematic diagram of the wire frame and threaded rod of a cardboard drying device for carton production proposed in this utility model. Figure 4 This is a three-dimensional schematic diagram of the rotating wheel one and rotating wheel two of a cardboard drying device for cardboard box production proposed in this utility model. Figure 5 This is a three-dimensional schematic diagram of the reciprocating lead screw and mounting frame of a cardboard drying device for carton production proposed in this utility model. Figure 6 This is a three-dimensional schematic diagram of the extrusion plate and insertion hole structure of a cardboard drying device for carton production proposed in this utility model.

[0017] Legend: 1. Drying oven; 2. Rotating shaft; 3. Door; 4. Threaded rod; 5. Threaded sleeve; 6. Mesh frame; 7. Rotating wheel one; 8. Rotating wheel two; 9. Belt; 10. Limiting plate; 11. Insertion hole one; 12. Extrusion plate; 13. Insertion hole two; 14. Pin; 15. Drive motor; 16. Mounting frame; 17. Reciprocating lead screw; 18. Lead screw sleeve; 19. Mounting plate; 20. Heating rod; 21. Circulating fan; 22. Exhaust port; 23. Inspection door. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1-6 This utility model provides a cardboard drying device for carton production: it includes a drying box 1, a rotating shaft 2 and a threaded rod 4 rotatably connected between the top and bottom of the inner wall of the drying box 1, a box door 3 fixedly sleeved on the outer surface of the rotating shaft 2, a transmission mechanism between the outer surface of the rotating shaft 2 and the outer surface of the threaded rod 4, a plurality of threaded sleeves 5 threadedly connected to the outer surface of the threaded rod 4, a pressing mechanism provided on one side of each of the plurality of threaded sleeves 5, a wire mesh frame 6 fixedly connected to the bottom of the inner wall of the drying box 1, a drying mechanism provided on one side of the drying box 1, a circulating fan 21 fixedly installed on one side of the drying box 1, an exhaust port 22 fixedly connected to the top of the drying box 1, and an inspection door 23 provided on one side of the drying box 1.

[0020] The transmission mechanism includes a first rotating wheel 7 and a second rotating wheel 8. The first rotating wheel 7 is fixedly sleeved on the outer surface of the rotating shaft 2, and the second rotating wheel 8 is fixedly sleeved on the outer surface of the threaded rod 4. The first rotating wheel 7 and the second rotating wheel 8 are connected by a belt 9. Through the coordinated use of the transmission mechanism, door 3, extrusion plate 12, and threaded rod 4, the extrusion plate 12 can be automatically raised and lowered by opening and closing the door 3. The lowering of the extrusion plate 12 clamps the cardboard to be dried, thereby offsetting the non-uniform shrinkage stress caused by differences in moisture content, preventing local warping and deformation, and avoiding the problem of cardboard deformation caused by insufficient clamping during the drying process. When the door 3 is opened, the extrusion plate 12 automatically resets to release the pressure, making it easy for operators to quickly pick up and put away the cardboard, thereby improving the drying quality of the cardboard and increasing production efficiency.

[0021] The clamping mechanism includes a limiting plate 10 fixedly installed on the top of the threaded sleeve 5. The front of the limiting plate 10 has several insertion holes 11. The inside of the limiting plate 10 is slidably connected to a pressing plate 12. The pressing plate 12 has an insertion hole 13. A pin 14 is movably inserted into the insertion hole 13. The pressing plate 12 is slidably connected to the mesh frame 6. The insertion holes 11 are arranged linearly. By pulling out the pin 14, the height of the extrusion plate 12 can be manually adjusted so that the extrusion plate 12 can contact paperboards of different thicknesses to be dried when the downward stroke is fixed. This achieves the limitation of the extrusion plate 12 on paperboards of different thicknesses and greatly improves the practicality of the device.

[0022] The drying mechanism includes a drive motor 15 and a mounting frame 16. The drive motor 15 is fixedly installed on one side of the drying chamber 1. A reciprocating lead screw 17 is fixedly connected to the output end of the drive motor 15. A lead screw sleeve 18 is threadedly connected to the outer surface of the reciprocating lead screw 17. A mounting plate 19 is fixedly connected to the front of the lead screw sleeve 18. Several heating rods 20 are fixedly connected to the front of the mounting plate 19. The lead screw sleeve 18 is slidably connected to the mounting frame 16. The reciprocating lead screw 17 is rotatably installed in the mounting frame 16.

[0023] Working principle: During the cardboard drying process, the staff first adjusts the distance between the extrusion plate 12 and the wire frame 6 according to the thickness of the cardboard to be dried. By opening the inspection door 23 and pulling out the pin 14, the pin 14 exits the insertion hole 11 and insertion hole 2 13 to release the locking state of the extrusion plate 12. Then, the staff manually lifts the extrusion plate 12 to a suitable height, and then reinserts the pin 14 to fix the extrusion plate 12. After the height adjustment is completed, the inspection door 23 is closed, and the cardboard to be dried is placed stably on the top working surface of the wire frame 6. Then, the staff manually closes the box door 3. At this time, the box door 3 rotates counterclockwise around the rotating shaft 2, which drives the rotating wheel 7 to rotate. The rotating wheel 7 drives the rotating wheel 8 and the threaded rod 4 to rotate through the belt 9. As the box door 3 closes, the threaded sleeve 5 drives the extrusion plate 12 to descend smoothly, and finally limits the paperboard to be dried on the wire frame 6, ensuring that the paperboard deforms during the drying process. After the door 3 is closed, the drive motor 15, heating rod 20 and circulating fan 21 are started. The output end of the drive motor 15 drives the reciprocating screw 17 to rotate. The screw sleeve 18 drives the heating rod 20 to reciprocate in the drying box 1 under the limit of the mounting frame 16. At the same time, the circulating fan 21 promotes the uniform flow of hot air in the box to form a dynamic hot air circulation. The reciprocating movement of the heating rod 20, combined with the hot air, achieves uniform heating of the cardboard in all directions. After drying is complete, the staff opens the box door 3, causing the rotating shaft 2 to rotate clockwise. This causes the rotating wheel 7 to rotate via the belt 9, which in turn drives the rotating wheel 8 and the threaded rod 4 to rotate. As a result, the pressing plate 12 rises with the opening of the box door 3, thus not affecting the staff's subsequent removal of the dried cardboard.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cardboard drying apparatus for carton production, comprising a drying chamber (1), characterized in that: A rotating shaft (2) and a threaded rod (4) are rotatably connected between the top and bottom of the inner wall of the drying box (1). A box door (3) is fixedly fitted on the outer surface of the rotating shaft (2). A transmission mechanism is provided between the outer surface of the rotating shaft (2) and the outer surface of the threaded rod (4). Several threaded sleeves (5) are threadedly connected to the outer surface of the threaded rod (4). A pressing mechanism is provided on one side of each of the several threaded sleeves (5). A wire mesh frame (6) is fixedly connected to the bottom of the inner wall of the drying box (1). A drying mechanism is provided on one side of the drying box (1).

2. The cardboard drying device for carton production according to claim 1, characterized in that: The transmission mechanism includes a first rotating wheel (7) and a second rotating wheel (8). The first rotating wheel (7) is fixedly sleeved on the outer surface of the rotating shaft (2), and the second rotating wheel (8) is fixedly sleeved on the outer surface of the threaded rod (4). The first rotating wheel (7) and the second rotating wheel (8) are connected by a belt (9).

3. The cardboard drying device for carton production according to claim 1, characterized in that: The clamping mechanism includes a limiting plate (10) fixedly installed on the top of the threaded sleeve (5). The front of the limiting plate (10) has several insertion holes (11). The inside of the limiting plate (10) is slidably connected to a pressing plate (12). The pressing plate (12) has an insertion hole (13). A pin (14) is movably inserted into the insertion hole (13).

4. A cardboard drying device for carton production according to claim 3, characterized in that: The extrusion plate (12) is slidably connected to the grid frame (6), and the insertion holes (11) are arranged linearly.

5. A cardboard drying device for carton production according to claim 1, characterized in that: The drying mechanism includes a drive motor (15) and a mounting frame (16). The drive motor (15) is fixedly mounted on one side of the drying box (1). The output end of the drive motor (15) is fixedly connected to a reciprocating lead screw (17). The outer surface of the reciprocating lead screw (17) is threadedly connected to a lead screw sleeve (18). The front side of the lead screw sleeve (18) is fixedly connected to a mounting plate (19). The front side of the mounting plate (19) is fixedly connected to several heating rods (20).

6. The cardboard drying apparatus for carton production according to claim 5, characterized in that: The lead screw sleeve (18) is slidably connected to the mounting frame (16), and the reciprocating lead screw (17) is rotatably installed in the mounting frame (16).

7. A cardboard drying device for carton production according to claim 1, characterized in that: A circulating fan (21) is fixedly installed on one side of the drying box (1), and an exhaust port (22) is fixedly connected to the top of the drying box (1).

8. A cardboard drying apparatus for carton production according to claim 1, characterized in that: The drying oven (1) is provided with an inspection door (23) on one side.

Images