Paper cutting device of non-stop unreeling machine

Abstract

The utility model discloses a paper cutting device of a non-stop unreeling machine, which belongs to the technical field of paper cutting equipment and comprises a concentric-square-shaped mounting frame, fixing plates are mounted on the outer side of the concentric-square-shaped mounting frame in a rectangular distribution manner, U-shaped mounting frames are fixedly mounted at two ends of the inner side of the concentric-square-shaped mounting frame, and a dead knife is fixedly mounted between the U-shaped mounting frames. Paper pressing assemblies used for limiting paper are symmetrically mounted on the two sides of the dead knife and comprise supporting frames and electric air cylinders, limiting plates are slidably mounted at the upper ends of the supporting frames, electric linear guide rails are fixedly mounted at the two ends of the inner side of a concentric-square-shaped mounting frame, sliding plates are mounted at one ends of the electric linear guide rails, and paper cutters are symmetrically and detachably mounted at the upper ends of the sliding plates. An integrated control panel is fixedly mounted at one end of the concentric-square-shaped mounting frame, old paper is fixed by moving a limiting plate through an electric air cylinder, then the old paper is automatically cut by a paper cutter, the cutting stability and accuracy are high, the cutting efficiency is improved, and meanwhile the limiting plate can drive the old paper and new paper to be automatically pasted.

Description

Technical Field

[0001] This utility model specifically relates to a paper cutting device for a non-stop unwinding machine, belonging to the technical field of paper cutting equipment. Background Technology

[0002] In the roll material processing industry, a non-stop unwinding machine is a crucial piece of equipment. Its core function is to perform roll material changes while the machine is continuously running during the processing. This equipment typically has two unwinding stations: a main station and a backup station. When the roll material at the main station is nearly depleted, the roll material at the backup station is ready and can be switched at any time, ensuring an uninterrupted supply of roll material and effectively avoiding production efficiency losses caused by machine downtime during roll material changes. During the roll material changeover process, the paper cutting device plays a key role, precisely cutting the old roll material.

[0003] Taking the "Cutting Device for Non-Stop Unwinding Equipment" (CN211283068U) as an example, this device includes an unwinding frame, an upper cutting mechanism, and a lower cutting mechanism. The upper cutting mechanism consists of two upper support plates, each with a slidably mounted upper slide plate. A first pressing mechanism is located between the two upper slide plates, and an upper cutting blade driven by a first driving mechanism is mounted on the outside of the first pressing mechanism. The lower cutting mechanism also includes two lower support plates, each with a slidably mounted lower slide plate. All upper and lower slide plates are driven synchronously by the same power mechanism. A second pressing mechanism is located between the two lower slide plates, and a lower cutting blade driven by a second driving mechanism is mounted on the outside of the second pressing mechanism. This utility model has the ability to cut paper unwound from either the front or back, enabling automatic cutting of small-diameter paper rolls. It also improves the stability and accuracy of the device during the cutting process to a certain extent, demonstrating advantages such as strong applicability and minimal paper path fluctuation during cutting.

[0004] However, in practical applications, the paper cutting devices of common non-stop unwinding machines still reveal many problems that urgently need to be solved. Although existing devices can cut paper, their stability and accuracy during the cutting process are poor, making it difficult to meet the stringent requirements of high-precision roll material processing. Even with claims of strong applicability, existing paper cutting devices often fall short in practical applications when faced with complex and diverse roll material materials, specifications, and different processing requirements. They are unable to complete the cutting task efficiently and stably, which undoubtedly limits the application and promotion of non-stop unwinding machines in a wider range of fields and higher-standard production environments.

[0005] Therefore, how to obtain a paper cutting device that can operate without stopping the unwinding machine in order to improve the stability and accuracy of cutting has become a realistic and urgent need. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a paper cutting device that allows the unwinding machine to operate without stopping, thereby improving the stability and accuracy of the cutting process.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a paper cutting device for a non-stop unwinding machine, comprising a U-shaped mounting frame, with fixed plates installed on the outer side of the U-shaped mounting frame in a rectangular arrangement, and U-shaped mounting frames fixedly installed at both ends of the inner side of the U-shaped mounting frame, with a bottom knife fixedly installed between the U-shaped mounting frames. Paper-pressing components for limiting paper position are symmetrically installed on both sides of the bottom knife. Electric linear guides are fixedly installed at both ends of the inner side of the U-shaped mounting frame, with a sliding plate installed at one end of the electric linear guide. Paper cutters are symmetrically and detachably installed on the upper end of the sliding plate, with one end of the paper cutter contacting the bottom knife. An integrated control panel is fixedly installed at one end of the U-shaped mounting frame. During use, the integrated control panel contains a controller for controlling various components. The cutting blade and the bottom knife are used to cut the paper. The sliding plate is fixedly connected to a slider in the electric linear guide, and the electric linear guide is used to reciprocate linearly moving the sliding plate. The paper-pressing components are used to limit the paper position. The fixed plates are used to connect the U-shaped mounting frame to external equipment.

[0008] Furthermore, in order to control the electric linear guide, the control terminal of the electric linear guide is electrically connected to the integrated control panel.

[0009] Furthermore, in order to limit the paper position, the paper pressing assembly includes a support frame and an electric cylinder. The support frame is fixedly installed at both ends of the inner side of the U-shaped mounting frame. A limit plate is slidably installed on the upper end of the support frame. An anti-slip block is fixedly installed at one end of the limit plate. The anti-slip block is used to limit the position of the paper.

[0010] Furthermore, in order to enable the limiting plate to move, mounting plates are fixedly installed on both sides of one end of the support frame, one end of the electric cylinder is fixedly installed on the mounting plate, the output end of the electric cylinder is fixedly connected to the limiting plate, and the electric cylinder is used to change the position of the limiting plate.

[0011] Furthermore, in order to control the electric cylinder, the electric cylinder is electrically connected to the integrated control panel.

[0012] Furthermore, in order to increase the friction between the limiting plate and the paper, the anti-slip block is made of rubber.

[0013] Furthermore, in order to fix the paper cutter, a screw hole is provided at the upper end of the sliding plate, and a positioning screw is rotatably installed at one end of the paper cutter. One end of the positioning screw extends into the screw hole, and the positioning screw matches the screw hole.

[0014] The technical effects and advantages of this utility model are as follows: When this utility model is in use, the old paper is fixed by moving the limiting plate through the electric cylinder, and then the paper cutter automatically cuts the old paper. The cutting stability and accuracy are high, and the cutting efficiency is also improved. At the same time, the limiting plate can drive the old paper and the new paper to be automatically pasted. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the mounting structure of the U-shaped mounting bracket of this utility model;

[0017] Figure 3 This is a schematic diagram of the paper cutter connection structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the paper pressing assembly structure of this utility model.

[0019] In the diagram: 1. U-shaped mounting bracket; 2. Fixing plate; 3. U-shaped mounting bracket; 4. Bottom knife; 5. Paper pressing assembly; 501. Support frame; 502. Electric cylinder; 503. Limiting plate; 504. Anti-slip block; 505. Mounting plate; 6. Electric linear guide rail; 7. Sliding plate; 8. Paper cutter; 9. Integrated control panel; 10. Positioning screw. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4As shown, a paper cutting device for a non-stop unwinding machine includes a U-shaped mounting frame 1. Fixed plates 2 are installed in a rectangular arrangement on the outer side of the U-shaped mounting frame 1. U-shaped mounting frames 3 are fixedly installed at both ends of the inner side of the U-shaped mounting frame 1. A bottom blade 4 is fixedly installed between the U-shaped mounting frames 3. Paper-pressing components 5 for limiting paper position are symmetrically installed on both sides of the bottom blade 4. Electric linear guides 6 are fixedly installed at both ends of the inner side of the U-shaped mounting frame 1. A sliding plate 7 is installed at one end of the electric linear guide 6. Paper cutters 8 are symmetrically and detachably installed on the upper end of the sliding plate 7, with one end of the paper cutter 8 contacting the bottom blade 4. An integrated control panel 9 is fixedly installed at one end of the U-shaped mounting frame 1. The control end of the electric linear guide 6 is electrically connected to the integrated control panel 9. A screw hole is opened at the upper end of the sliding plate 7. A positioning screw 10 is rotatably installed at one end of the paper cutter 8, with one end of the positioning screw 10 extending to... When using the screw hole, to replace the paper roll, first manually control the paper pressing assembly 5 via the integrated control panel 9 to press the new paper against the bottom blade 4. Then, manually control the other side of the paper pressing assembly 5 via the integrated control panel 9 to limit the old paper. The new paper has tape on one end, which automatically adheres to the new paper via the tape when the old paper is limited. Then, activate the electric linear guide 6 on one side via the integrated control panel 9 to move the sliding plate 7 linearly to one side, and the paper cutter 8 moves accordingly to cut the old paper. The cutting stability and accuracy are high, improving cutting efficiency. After cutting, reset the paper pressing assembly 5 at the new paper end via the integrated control panel 9. Finally, remove the old paper roll and replace it with a new one for easy replacement next time.

[0022] like Figure 4 As shown, the paper pressing assembly 5 includes a support frame 501 and an electric cylinder 502. The support frame 501 is fixedly installed at both ends of the inner side of the U-shaped mounting frame 1. A limit plate 503 is slidably installed on the upper end of the support frame 501. An anti-slip block 504 is fixedly installed at one end of the limit plate 503. Mounting plates 505 are fixedly installed on both sides of one end of the support frame 501. One end of the electric cylinder 502 is fixedly installed on the mounting plate 505. The output end of the electric cylinder 502 is fixedly connected to the limit plate 503. The electric cylinder 502 is electrically connected to the integrated control panel 9. The anti-slip block 504... 4 is made of rubber. During use, the electric cylinder 502 on one side is manually activated via the integrated control panel 9, which moves the limit plate 503 to one side on the upper end of the support frame 501 to limit the new paper. Then, the electric cylinder 502 on the other side is activated via the integrated control panel 9 to limit the old paper. Next, the paper cutter 8 is controlled by the integrated control panel 9 to cut the old paper. After cutting, the limit plate 503 at one end of the new paper is reset via the integrated control panel 9 to release the limiting effect on the new paper and achieve continuous paper supply.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cutting device of off-line unwinder, comprising a back-shaped mounting frame (1), a fixed plate (2) is installed outside the back-shaped mounting frame (1) in a rectangular distribution, characterized in that: The U-shaped mounting bracket (3) is fixedly installed between the two ends of the meandering mounting rack (1), the bottom knife (4) is fixedly installed between the U-shaped mounting brackets (3), the paper pressing assembly (5) for limiting paper is symmetrically installed on both sides of the bottom knife (4), the electric linear guide rail (6) is fixedly installed at the two ends of the meandering mounting rack (1), the sliding plate (7) is installed at one end of the electric linear guide rail (6), the paper cutting knife (8) is detachably installed on the upper end of the sliding plate (7), one end of the paper cutting knife (8) is in contact with the bottom knife (4), and the integrated control panel (9) is fixedly installed at one end of the meandering mounting rack (1).

2. The apparatus of claim 1 wherein: The control end of the electric linear guide rail (6) is electrically connected with the integrated control panel (9).

3. The apparatus of claim 1 wherein: The paper pressing assembly (5) comprises a supporting frame (501) and an electric cylinder (502), the supporting frame (501) is fixedly installed at the two ends of the meandering mounting rack (1), the limiting plate (503) is slidably installed on the upper end of the supporting frame (501), and the anti-skid block (504) is fixedly installed at one end of the limiting plate (503).

4. The apparatus of claim 3 wherein: The mounting plate (505) is fixedly installed at the two ends of the supporting frame (501), the electric cylinder (502) is fixedly installed on the mounting plate (505), and the output end of the electric cylinder (502) is fixedly connected with the limiting plate (503).

5. The apparatus of claim 4 wherein: the cutting device is a guillotine cutter. The electric cylinder (502) is electrically connected with the integrated control panel (9).

6. The apparatus of claim 3 wherein: The anti-skid block (504) is made of rubber.

7. The apparatus of claim 1 wherein: The screw hole is formed in the upper end of the sliding plate (7), the positioning screw (10) is rotatably installed at one end of the paper cutting knife (8), and one end of the positioning screw (10) extends into the screw hole.

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