A rolling cutting device

Abstract

The utility model provides a kind of rolling type paper cutting device, including paper cutting wheel, its outer circle surface is equipped with several circumferential distribution and through negative pressure adsorption paper tape's paper suction block;With paper cutting wheel pair roll, several height adjustable cutting knives of circumferential distribution of cutting knife wheel;The transmission mechanism of driving both to preset linear velocity difference reverse rotation;By two supporting roller and adjusting roller composition phase compensation mechanism, and the automatic cleaning unit of rotating cleaning brush and paper cutting wheel surface doctor knife being equipped in the both sides of cutting knife wheel, the mounting end surface of paper cutting wheel, cutting knife wheel is equipped with the waist hole of circumferential distribution respectively, adjustable circumferential phase, and paper cutting wheel outer circle surface linear velocity ratio paper supply roller paper supply linear velocity is fast.The utility model solves the problems, such as low efficiency, poor precision, weak adaptability and inconvenient cleaning and maintenance of existing paper cutting device, with the advantages of high cutting precision, high efficiency, strong adaptability, stable operation and convenient maintenance, suitable for paper product processing industry cutting of various paper.

Description

Technical Field

[0001] This utility model relates to the field of paper cutting equipment technology, and more specifically, to a roller-type paper cutting device. Background Technology

[0002] In the paper processing industry, paper cutting is a crucial process. Traditional paper cutting methods have many drawbacks, seriously affecting production efficiency and product quality.

[0003] In the production of tapered tubes, the raw material is a roll of paper, which needs to be cut into sections according to certain specifications. There are high requirements for both length and cutting point; the paper must be cut at designated points to meet the appearance and other quality requirements of the subsequent rolled tubes.

[0004] In some older paper cutting equipment, a single-blade cutting method is often used. This method results in a relatively slow cutting speed, making it difficult to meet the demands of large-scale production. For example, in some printing processing plants, a large volume of paper needs to be processed daily. If single-blade cutting were used, the daily output might be far below market demand, leading to delivery delays. Furthermore, single-blade cutting is prone to paper misalignment during the cutting process, making it difficult to guarantee cutting accuracy. The edges of the cut paper may be uneven, affecting the product's appearance quality. For products with high dimensional accuracy requirements, such as high-grade packaging paper and precision printing paper, this error is unacceptable.

[0005] Some equipment uses flatbed cutting, which improves cutting efficiency to some extent, but still has many problems. During flatbed cutting, the friction between the paper and the blade is relatively high, easily causing scratches on the paper surface, especially for softer, smoother papers. This not only affects the paper's appearance but may also reduce its physical properties, such as strength. Furthermore, flatbed cutting requires significant cutting force, placing high demands on the equipment's power system and increasing energy consumption and maintenance costs. At the same time, flatbed cutting has poor adaptability to paper of different thicknesses and materials; switching paper types often requires a considerable amount of time to adjust blade parameters, further reducing production efficiency.

[0006] With the development of the paper processing industry, higher requirements have been placed on the precision, efficiency, adaptability, and cleanliness and maintenance of paper cutting devices. Therefore, there is an urgent need for a paper cutting device that can solve the above problems and has the advantages of high efficiency, precision, strong adaptability, and ease of maintenance. Utility Model Content

[0007] Based on the above-mentioned technical problems, this utility model proposes a rolling paper cutting device.

[0008] A rolling paper cutting device, comprising:

[0009] The paper cutting roller has several paper suction blocks evenly distributed around its outer surface. Each paper suction block has multiple suction holes and generates suction force by connecting to a negative pressure system.

[0010] The cutting wheel consists of several height-adjustable cutting blades that are set to roll against the paper cutting wheel and are evenly distributed around its outer circumference.

[0011] The transmission mechanism drives the paper cutting wheel and the blade cutting wheel to rotate in opposite directions with a preset linear speed difference to achieve roll cutting;

[0012] The phase compensation mechanism includes two idler rollers and an adjusting roller. The idler rollers guide the path of the paper tape leading out from the feed roller. The adjusting roller is located between the two idler rollers and is connected to the drive motor via a rotating shaft. When the cutter wheel performs cutting, the adjusting roller is in a vertical short axis state, which makes the paper tape taut. After cutting, the adjusting roller gradually rotates to a horizontal long axis state as the paper tape runs, which makes the paper tape slack.

[0013] The automatic cleaning unit includes a rotating cleaning brush located on the side of the cutter wheel and a scraper on the surface of the paper cutting wheel.

[0014] Preferably, the outer circumference of the cutter wheel is evenly distributed with several mounting surfaces, and the mounting surfaces are provided with screw holes. The cutter is provided with an elongated opening, and the bolt passes through the opening and is assembled with the screw holes to fix the cutter on the mounting surface.

[0015] Preferably, the linear velocity of the outer surface of the paper cutting roller is faster than the linear velocity of the paper feeding roller.

[0016] Preferably, the mounting end face of the paper cutting wheel is provided with a plurality of waist-shaped holes evenly distributed around its circumference, which are mounted on the transmission mechanism by screws to adjust the circumferential phase of the paper cutting wheel.

[0017] Preferably, the mounting end face of the cutter wheel is provided with a plurality of waist-shaped holes evenly distributed around its circumference, which are mounted on the transmission mechanism by screws to adjust the circumferential phase of the cutter wheel.

[0018] Beneficial effects:

[0019] 1. In terms of cutting precision, the paper suction block on the paper cutting wheel uses negative pressure to attract the paper belt. Combined with the counter-rolling cutting of the cutting wheel and the precise control of the speed difference by the transmission mechanism, high-precision cutting can be achieved, effectively avoiding paper deviation and shaking during the cutting process, and meeting the needs of various production scenarios with high requirements for paper size accuracy.

[0020] 2. In terms of cutting efficiency, the roller cutting method greatly improves the cutting speed compared with the traditional single-blade or flat-blade cutting, which can meet the needs of large-scale production and significantly improve production efficiency.

[0021] 3. The adjustable cutter height and adjustable circumferential phase of the paper cutting wheel and cutter wheel make the device highly adaptable to different paper thicknesses and materials, allowing it to handle various types of paper without frequent blade replacements or large-scale adjustments to the equipment.

[0022] 4. The phase compensation mechanism adjusts the paper tape state before and after cutting by adjusting the rollers, ensuring the stability and continuity of the cutting process;

[0023] 5. The automatic cleaning unit can promptly remove the glue adhering to the cutter during the paper cutting process, avoiding any impact on subsequent processes. It also reduces the amount of manual cleaning work and improves the overall operating efficiency of the equipment. Attached Figure Description

[0024] Figure 1 A simplified flowchart of the overall process of this utility model is shown;

[0025] Figure 2 A schematic diagram of the structure of this utility model is shown;

[0026] In the attached diagram, 1 is the paper cutting wheel, 2 is the cutter wheel, 3 is the support roller, 4 is the adjusting roller, 5 is the paper belt, 6 is the paper feeding roller, 7 is the rotating cleaning brush, 8 is the scraper, 9 is the mounting surface, 10 is the oblong hole, 11 is the paper suction block, and 12 is the cutter. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] like Figures 1-2 The illustrated roller-type paper cutting device includes:

[0029] Paper cutting roller 1: Several paper suction blocks 11 are evenly distributed in a circle on the outer circumference of the paper cutting roller 1. The design of these paper suction blocks 11 is crucial. Each paper suction block 11 has multiple suction holes and generates suction force by connecting to a negative pressure system. Its function is that when the paper strip 5 enters the paper cutting area, the paper suction block 11 can tightly adhere to the paper strip 5, ensuring that the paper strip 5 remains stable during the cutting process and does not shift or shake, thereby greatly improving the cutting accuracy. For example, for some thin and easily floating papers, the suction force of the paper suction block 11 can effectively overcome the instability of the paper caused by airflow and other factors, ensuring the accuracy of the cutting.

[0030] It should be noted that the paper tape 5 is driven by the paper cutting wheel 1. During cutting, the front end of the paper tape 5 is still attracted to the paper suction block 11 and will not detach from the paper cutting wheel 1.

[0031] Cutting wheel 2: It is set to roll against the paper cutting wheel 1. Several height-adjustable cutters 12 are evenly distributed on its outer circumference. The rolling design between the cutting wheel 2 and the paper cutting wheel 1 realizes rolling cut. During cutting, the cutters 12 cut at the gap between the paper suction blocks 11. This cutting method is more efficient than the traditional flat blade cutting. The height-adjustable feature of the cutters 12 allows the device to adapt to the cutting needs of paper of different thicknesses. Several mounting surfaces 9 are evenly distributed on the outer circumference of the cutting wheel 2. The mounting surfaces 9 are provided with screw holes. The cutters 12 are provided with elongated openings. Bolts pass through the openings and screw holes to fix the cutters 12 to the mounting surfaces 9. This installation method facilitates the adjustment and disassembly of the cutters 12, and can quickly complete the operation when the cutters 12 are worn and need to be replaced, thus improving the maintenance efficiency of the equipment. For example, when cutting thicker cardboard, the height of the cutter 12 can be adjusted appropriately to ensure that the paper can be cut smoothly; while when cutting thinner paper, the height of the cutter 12 should be lowered to avoid excessive cutting and causing unnecessary damage to the paper.

[0032] Transmission mechanism: Its function is to drive the paper cutting wheel 1 and the cutter wheel 2 to rotate in opposite directions with a preset linear speed difference to achieve roll cutting. By controlling the linear speed difference between the two, the cutting process can be better controlled. For example, an appropriate linear speed difference can enable the cutter 12 to generate a suitable shearing force on the paper during cutting, which can ensure that the paper can be cut smoothly without damaging the paper due to excessive force. At the same time, the reverse rotation design helps the paper to transition smoothly during the cutting process, further improving the stability and accuracy of cutting.

[0033] Phase compensation mechanism: Includes two idler rollers 3 and one adjusting roller 4. Idler rollers 3 are mainly used to guide the path of the paper belt 5 led out from the paper feed roller 6, ensuring that the paper belt 5 can accurately enter the cutting area. The adjusting roller 4 is located between the two idler rollers 3 and is connected to the drive motor through a rotating shaft. When the cutter wheel 2 performs cutting, the adjusting roller 4 is in a vertical short axis state, which makes the paper belt 5 taut. The ingenuity of this design is that at the moment of cutting, the paper belt is taut, which can ensure that the cutting is accurate and fast. As the paper belt 5 runs, the adjusting roller 4 gradually rotates to a horizontal long axis state to relax the paper belt 5, extend the paper belt path to form a slack margin, avoid stress accumulation from continuous cutting, facilitate subsequent conveying and collection, and improve the continuity and stability of the entire paper cutting process.

[0034] Automatic cleaning unit: A rotating cleaning brush 7 is located on the side of the cutter wheel 2, and a scraper 8 is located on the surface of the paper cutting wheel 1. The rotating cleaning brush 7 is driven by a motor to rotate. During the paper cutting process, glue on the paper is easily attached to the surface of the cutter 12, which affects the subsequent cutting effect and the service life of the equipment. The rotating cleaning brush 7 can clean the glue on the surface of the cutter 12 in time during the rotation of the cutter wheel 2, keeping the cutter 12 clean and sharp. The scraper 8 on the surface of the paper cutting wheel 1 can scrape off paper scraps and other impurities adsorbed on the paper cutting wheel 1, ensuring that the adsorption performance of the paper suction block 11 is not affected, ensuring that the entire paper cutting device is always in good working condition, and reducing the frequency of failures caused by untimely cleaning.

[0035] Furthermore, the linear velocity of the outer surface of the cutting roller 1 is faster than the feeding linear velocity of the feeding roller 6. This speed difference is small, which allows the paper belt 5 to be in a proper tension state when it enters the cutting area. Therefore, the cut paper immediately adheres to the cutting roller 1 and moves in a circular motion at the linear velocity of the cutting roller 1. The cut paper will be separated from the paper belt 5 waiting to be cut by a certain distance, which is called "slip".

[0036] The mounting end face of the paper cutting wheel 1 is provided with several evenly distributed oblong holes 10 around its circumference. These holes are mounted on the transmission mechanism by screws to adjust the circumferential phase of the paper cutting wheel 1. Similarly, the mounting end face of the cutter wheel 2 is provided with several evenly distributed oblong holes 10 around its circumference. These holes are mounted on the transmission mechanism by screws to adjust the circumferential phase of the cutter wheel 2. By adjusting the circumferential phase, the cooperation between the paper cutting wheel 1 and the cutter wheel 2 can be further optimized, ensuring that the cutter 12 contacts the paper in the optimal position, improving the cutting quality, and adapting to different cutting process requirements.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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 roller-type paper cutting device, characterized in that, include: The paper cutting wheel (1) has several paper suction blocks (11) evenly distributed in a circle on its outer circular surface. Each paper suction block (11) has multiple suction holes and generates suction force by connecting to a negative pressure system. Cutting wheel (2), which is set to roll against the paper cutting wheel (1) and has several height-adjustable cutters (12) evenly distributed on its outer circumference. The transmission mechanism drives the paper cutting wheel (1) and the cutter wheel (2) to rotate in opposite directions with a preset linear speed difference to achieve rolling cutting; The phase compensation mechanism includes two idler rollers (3) and an adjusting roller (4). The idler rollers (3) are used to guide the path of the paper tape (5) drawn from the paper feed roller (6). The adjusting roller (4) is located between the two idler rollers (3) and is connected to the drive motor through a rotating shaft. When the cutter wheel (2) performs cutting, the adjusting roller (4) is in a vertical short axis state, so that the paper tape (5) is taut. After the cutting is completed, the adjusting roller (4) gradually rotates to a horizontal long axis state as the paper tape (5) runs, so that the paper tape (5) has a slack margin. The automatic cleaning unit includes a rotating cleaning brush (7) located on the side of the cutting wheel (2) and a scraper (8) on the surface of the paper cutting wheel (1).

2. The rolling paper cutting device according to claim 1, characterized in that, The cutter wheel (2) has several mounting surfaces (9) evenly distributed on its outer circumference. The mounting surfaces (9) are provided with screw holes, and the cutter (12) is provided with a long strip-shaped opening. The bolt passes through the opening and is assembled with the screw hole to fix the cutter (12) on the mounting surface (9).

3. The rolling paper cutting device according to claim 1, characterized in that, The linear velocity of the outer surface of the paper cutting roller (1) is faster than the linear velocity of the paper feeding roller (6).

4. The rolling paper cutting device according to claim 1, characterized in that, The mounting end face of the paper cutting wheel (1) is provided with a number of waist-shaped holes (10) evenly distributed around the circumference. These holes are mounted on the transmission mechanism by screws to adjust the circumferential phase of the paper cutting wheel (1).

5. The rolling paper cutting device according to claim 1, characterized in that, The mounting end face of the cutter wheel (2) is provided with a number of waist-shaped holes (10) evenly distributed around the circumference, which are mounted on the transmission mechanism by screws to adjust the circumferential phase of the cutter wheel (2).

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