A cutting device for bulking paper

Abstract

This utility model relates to the field of expanded paper technology, specifically to a cutting device for expanded paper. It includes a cutting machine body and cutting and traction components mounted on the machine body. A humidifying chamber is fixedly installed on the machine body, and a humidifying plate is provided on the humidifying chamber. A smoothing component for keeping the edges of the expanded paper flat is also provided on the machine body. The smoothing component includes a movable frame mounted on the machine body, a rotating rod on the movable frame, and a connecting rod in the rotating rod. This utility model, by setting up a humidifying chamber, allows an ultrasonic atomizer to humidify the interior of the paper through the humidifying plate. This allows the expanded paper passing through the guide rollers to absorb moisture from the humidifying chamber and become humidified, thereby restoring the moisture content between the edges and the interior of the expanded paper to a new equilibrium. The internal stress caused by drying is gradually released, and the raised edges are smoothed back after the humidity is evenly distributed, thus gradually improving the edge curling situation.

Description

Technical Field

[0001] This utility model relates to the field of expanded paper technology, and in particular to a cutting device for expanded paper. Background Technology

[0002] Expanded paper is made from pulp, old newsprint, old writing paper, and waste yellow core cardboard as raw materials, along with auxiliary materials such as deinking agent, bleaching agent, cationic starch, expanding agent, SPN-1 rosin gum, and liquid aluminum sulfate. It is prepared through processes of pulp preparation, papermaking, and drying. In application, expanded paper often requires specific sizes and shapes to meet the production requirements of different products. Therefore, expanded paper needs to be cut into precise sizes by a cutting device.

[0003] However, during the cutting process of expanded paper, it is a common problem that the paper curls up on both sides when it is fed to the cutter. Uneven moisture distribution in the transverse direction of the paper web, differences in drying between the upper and lower drying cylinders leading to an imbalance in the drying stage, or tension fluctuations causing the paper to stretch or shrink, all contribute to the curling of the sides. This curling of the sides leads to deviations between the cut and the preset position, decreased dimensional accuracy, and increased scrap rate, among other quality problems.

[0004] To address this, a cutting device for expanded paper is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for expanded paper to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for expanded paper, comprising a cutting machine body and a cutting component and a traction component disposed on the cutting machine body, wherein a humidification box is fixedly installed on the cutting machine body, and a humidification plate is disposed on the humidification box; the cutting machine body is provided with a smoothing component for keeping the edges of the expanded paper flat, the smoothing component comprising a movable frame disposed on the cutting machine body, a rotating rod disposed on the movable frame, a connecting rod disposed in the rotating rod, and a smoothing plate fixedly connected to the bottom end of the connecting rod.

[0007] Preferably, the humidification box is provided with a plurality of guide rollers for guiding the expanded paper, the plurality of guide rollers being arranged alternately, and an ultrasonic atomizer is fixedly installed on the humidification box.

[0008] Preferably, a conduit connects the humidifying plate to the ultrasonic atomizer, the humidifying plate is hollow, and several through holes are formed on the humidifying plate.

[0009] Preferably, a motor is fixedly installed on the movable frame, and the output shaft of the motor is fixedly connected to the rotating rod. The connecting rod is slidably connected in the rotating rod, and a first spring is fixedly connected between the connecting rod and the rotating rod.

[0010] Preferably, a guide cylinder is fixedly installed on the movable frame, and the top surface of the guide cylinder is inclined, and a guide rod is fixedly connected to the connecting rod.

[0011] Preferably, a telescopic component is fixedly installed on the cutting machine body, and the telescopic component is fixedly connected to the moving frame.

[0012] Preferably, an electric push rod is fixedly installed on the cutting assembly, a connecting frame is fixedly connected to the electric push rod, a pressure plate for pressing the expanded paper is provided at the bottom of the connecting frame, and a telescopic rod and a second spring are fixedly connected between the pressure plate and the connecting frame. A gap is provided on the pressure plate for the cutting blade in the cutting assembly to pass through.

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

[0014] This invention uses a humidification box to humidify the interior of the ultrasonic atomizer via a humidification plate. This allows the expanded paper passing through the guide rollers to absorb moisture from the humidification box and become humidified, thereby restoring the moisture content between the edges and the interior of the expanded paper. The internal stress caused by drying is gradually released, and the curled edges are straightened again after the humidity is evenly distributed, thus gradually improving the situation of edge curling.

[0015] This invention uses a smoothing assembly to drive a motor-driven smoothing plate at the bottom, which smooths the surface of the puffed paper, making the edges of the humidified puffed paper smoother. At the same time, the guide rod rotates along the top surface of the guide cylinder, allowing the connecting rod to move the smoothing plate up and down during rotation. This ensures that when the smoothing plate comes into contact with the puffed paper again after rotation, it will not come into contact with the edges of the puffed paper, thus preventing the edges from lifting again. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a cutting device for expanded paper according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the humidification box of a cutting device for expanded paper according to an embodiment of the present invention.

[0019] Figure 3This is a schematic diagram of the humidifying plate structure of a cutting device for expanded paper according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the flat plate structure of a cutting device for expanded paper according to an embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the rotating rod structure of a cutting device for puffed paper according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the cutting machine body of a cutting device for puffed paper according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the pressure plate structure of a cutting device for expanded paper according to an embodiment of the present invention.

[0024] The components in the diagram are labeled as follows: 1. Cutting machine body; 2. Cutting assembly; 3. Traction assembly; 4. Humidification box; 5. Humidifying plate; 6. Moving frame; 7. Rotating rod; 8. Connecting rod; 9. Smoothing plate; 10. Guide roller; 11. Ultrasonic atomizer; 12. Through hole; 13. Motor; 14. First spring; 15. Guide cylinder; 16. Guide rod; 17. Telescopic assembly; 18. Electric push rod; 19. Connecting frame; 20. Pressure plate; 21. Telescopic rod; 22. Second spring; 23. Gap opening. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 7As shown, a specific embodiment of this utility model provides a cutting device for puffed paper, including a cutting machine body 1 and a cutting component 2 and a traction component 3 disposed on the cutting machine body 1. The cutting blade in the cutting component 2 can move laterally to cut the puffed paper on the cutting machine body 1, while the traction component 3 can pull the end of the puffed paper, thereby cooperating with the cutting machine body 1 to move the puffed paper and maintain a straight effect, thus facilitating cutting. The cutting component 2 and the traction component 3 are both prior art, and their specific structures will not be described in detail. A humidifying box 4 is fixedly installed on the cutting machine body 1, and a humidifying plate 5 is provided on the humidifying box 4. The setting of the humidifying box 4 allows the dry puffed paper to be humidified when passing through the humidifying box 4. This allows the internal stress generated by drying inside the paper to be gradually released, and the curled-up edges are straightened again after the humidity is evenly distributed. The humidity of the expanded paper is adjusted according to different types of expanded paper to ensure that humidification can help improve the curling of the edges without affecting the properties of the expanded paper itself. The cutting machine body 1 is equipped with a smoothing component for keeping the edges of the expanded paper flat. By setting the smoothing component, it can work with the humidification box 4 to further smooth the curled-up edges of the expanded paper, increase the flatness of the expanded paper, and improve the curling of the edges. The smoothing component includes a movable frame 6 on the cutting machine body 1, a rotating rod 7 on the movable frame 6, a connecting rod 8 in the rotating rod 7, and a smoothing plate 9 fixedly connected to the bottom end of the connecting rod 8.

[0028] like Figures 1 to 3 As shown, specifically, the humidification box 4 is equipped with several guide rollers 10 for guiding the expanded paper. These guide rollers 10 are arranged alternately. An ultrasonic atomizer 11 is fixedly installed on the humidification box 4. A conduit connects the humidifying plate 5 to the ultrasonic atomizer 11. The humidifying plate 5 is hollow and has several through holes 12. Activating the ultrasonic atomizer 11 atomizes the water, which then enters the inner cavity of the humidifying plate 5 through the conduit and is subsequently discharged into the humidification box 4 through the through holes 12. This creates a humid environment within the humidification box 4, allowing the expanded paper to be properly humidified. After the guide roller 10 in the humidification chamber 4, the top and bottom surfaces of the expanded paper can come into contact with the humid air in the humidification chamber 4 under the guidance of the guide roller 10, thereby absorbing the moisture in the air and humidifying itself. The moisture content of the edge and the inside of the expanded paper is rebalanced, and the internal stress caused by drying is gradually released. The curled-up parts at the edge are flattened again after the humidity is uniformized, thereby gradually improving the edge curling. The ultrasonic atomizer 11 can be freely adjusted so that the humidity in the humidification chamber 4 can be adjusted in time to adapt to the humidity required by different expanded papers.

[0029] like Figure 1 , Figure 4 and Figure 5As shown, specifically, a motor 13 is fixedly installed on the movable frame 6, and the output shaft of the motor 13 is fixedly connected to the rotating rod 7. The connecting rod 8 is slidably connected in the rotating rod 7, and a first spring 14 is fixedly connected between the connecting rod 8 and the rotating rod 7. A guide cylinder 15 is fixedly installed on the movable frame 6, and the top surface of the guide cylinder 15 is inclined. A guide rod 16 is fixedly connected to the connecting rod 8. After the puffed paper is moistened in the above process, it moves backward on the cutting machine body 1. The motor 13 is started to drive the rotating rod 7 to rotate, thereby driving the connecting rod 8 and the smoothing plate 9 to rotate. The smoothing plate 9 rotates along the top surface of the puffed paper, thereby smoothing the puffed paper and making the raised edges of the moistened puffed paper even flatter.

[0030] As the connecting rod 8 rotates, it causes the guide rod 16 to rotate against the top surface of the guide cylinder 15. Since the top surface of the guide cylinder 15 is inclined, when the guide rod 16 rotates past the protruding inclined surface, the connecting rod 8 gradually moves upward, causing the bottom straightening plate 9 to move upward. This makes the position of the straightening plate 9 higher than the height of the expanded paper. The upward movement of the connecting rod 8 causes the first spring 14 to contract and generate a reaction force. When the position of the straightening plate 9 is higher than the height of the expanded paper, the straightening plate 9 contacts the expanded paper again after rotation. When the paper is being straightened, it will not come into contact with the edge of the expanded paper, which would cause the edge to lift up again. That is, after the guide rod 16 passes the raised inclined surface, it pushes the connecting rod 8 downward under the reaction force of the first spring 14, so that the straightening plate 9 moves downward and fits the expanded paper at the bottom to straighten it again. The cutting machine body 1 is fixedly installed with a telescopic component 17, and the telescopic component 17 is fixedly connected to the moving frame 6. The telescopic component 17 can drive the moving frame 6 to move up and down, thereby adjusting the position and height of the straightening plate 9 so that it can be adapted to fit expanded paper of different thicknesses.

[0031] like Figure 1 , Figure 6 and Figure 7As shown, specifically, an electric push rod 18 is fixedly installed on the cutting assembly 2, and a connecting frame 19 is fixedly connected to the electric push rod 18. The bottom of the connecting frame 19 is provided with a pressure plate 20 for holding the puffed paper, and a telescopic rod 21 and a second spring 22 are fixedly connected between the pressure plate 20 and the connecting frame 19. The pressure plate 20 has a gap 23 for the cutting blade in the cutting assembly 2 to pass through. When the flattened puffed paper is cut by the cutting assembly 2, the traction assembly 3 pulls the end of the puffed paper to straighten it. The electric push rod 18 retracts, causing the connecting frame 19 to move downwards, thereby causing the bottom pressure plate 20 to move downwards to hold the bottom puffed paper. During the holding process, the telescopic rod 21 and the second spring 22 between the pressure plate 20 and the connecting frame 19 provide a buffering effect on the holding force, thereby preventing excessive holding force from damaging the puffed paper. At this time, after the pressure plate 20 holds the puffed paper, the cutting assembly 2... The cutting blade moves in the gap 23 to cut the expanded paper laterally. At this time, the cutting position of the expanded paper is at the gap 23. Both ends of the gap 23 are pressed by the pressure plate 20. Therefore, the pressure of the pressure plate 20 during the cutting process will prevent the expanded paper from curling up at the cut, thus not affecting the further processing of the expanded paper. In the conventional cutting process, the difference in the stress shrinkage performance of the paper causes the side with greater stress shrinkage performance to pull the paper up, thus causing it to warp in that direction. However, under the pressure of the pressure plate 20, the movement or deformation of the paper at both ends of the cutting position is reduced during the cutting process. With the support of the flattening operation of the expanded paper itself, the curling up at the cut position is greatly improved. After the cutting is completed, the cut expanded paper is sorted and collected under the continuous operation of other equipment on the cutting machine body 1.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting device for bulking paper, comprising a cutting machine body (1) and a cutting assembly (2) and a traction assembly (3) provided on the cutting machine body (1), characterized in that, A humidification box (4) is fixedly installed on the main body (1) of the cutting machine, and a humidification plate (5) is provided on the humidification box (4). The cutting machine body (1) is provided with a smoothing component for keeping the edge of the expanded paper flat. The smoothing component includes a movable frame (6) on the cutting machine body (1), a rotating rod (7) on the movable frame (6), a connecting rod (8) in the rotating rod (7), and a smoothing plate (9) fixedly connected to the bottom end of the connecting rod (8).

2. The cutting device for expanded paper according to claim 1, characterized in that, The humidification box (4) is provided with a number of guide rollers (10) for guiding the expanded paper. The number of guide rollers (10) are arranged alternately. An ultrasonic atomizer (11) is fixedly installed on the humidification box (4).

3. The puffed paper cutting device according to claim 2, characterized in that, A conduit connects the humidifying plate (5) to the ultrasonic atomizer (11). The humidifying plate (5) is hollow and has several through holes (12).

4. The cutting device for expanded paper according to claim 1, characterized in that, A motor (13) is fixedly installed on the movable frame (6), and the output shaft of the motor (13) is fixedly connected to the rotating rod (7). The connecting rod (8) is slidably connected in the rotating rod (7), and a first spring (14) is fixedly connected between the connecting rod (8) and the rotating rod (7).

5. The cutting device for expanded paper according to claim 1, characterized in that, A guide cylinder (15) is fixedly installed on the movable frame (6), and the top surface of the guide cylinder (15) is inclined. A guide rod (16) is fixedly connected to the connecting rod (8).

6. The cutting device for expanded paper according to claim 1, characterized in that, The cutting machine body (1) is fixedly installed with a telescopic component (17), and the telescopic component (17) is fixedly connected to the moving frame (6).

7. The cutting device for expanded paper according to claim 1, characterized in that, An electric push rod (18) is fixedly installed on the cutting assembly (2). A connecting frame (19) is fixedly connected to the electric push rod (18). A pressure plate (20) for pressing the expanded paper is provided at the bottom of the connecting frame (19). A telescopic rod (21) and a second spring (22) are fixedly connected between the pressure plate (20) and the connecting frame (19). A gap (23) is opened on the pressure plate (20) for the cutting blade in the cutting assembly (2) to pass through.

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