Cross-cut knife device for roll change on-line cutting

Abstract

The utility model relates to cross cutting knife device technical field, especially be used for winding change roll online cut cross cutting knife device, including mounting bracket and the knife rest of sliding setting on mounting bracket, be provided with cutting knife on the knife rest, be provided with the first drive mechanism for driving cutting knife rotation on the knife rest, be provided with the second drive mechanism for driving the displacement of knife rest on mounting bracket on the knife rest, the second drive mechanism includes walking servo motor of installation on the knife rest, the mounting bracket is along the displacement direction of knife rest and is provided with chain, when using, through first drive mechanism can drive and to active rotation, and actively dismount to cloth, reduce the impact to knife rest, at the same time, cooperate second drive mechanism and drive the knife rest along the transverse displacement of mounting bracket, can dismount to wide -range cloth, effectively reduce the instability of cross cutting knife caused by impact, improve more cutting knife applicability, make automatic cutting cloth become possible in the non -stop change roll process of super -wide -range laminating machine of laminating machine.

Description

Technical Field

[0001] This utility model relates to the technical field of cross-cutting device, and in particular to a cross-cutting device for online cutting during winding and changing. Background Technology

[0002] During the operation of the laminating machine, to achieve continuous lamination production, it is necessary to ensure the uninterrupted movement of the base fabric during roll changes. Therefore, during roll changes, the moving fabric surface needs to be transversely cut to guide the fabric to the new take-up shaft for switching. However, in actual operation, the high-speed movement of the base fabric generates significant dynamic impact loads on the cutter, especially for wide-width laminating machines with a width exceeding 6 meters, where the impact intensity is even more pronounced. Currently used transverse cutter structures, due to insufficient strength and stability, are unable to achieve effective cutting under such conditions, resulting in this process still mainly relying on manual operation. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that the commonly used cross-cutting blade structure has insufficient strength and stability, and the high-speed traveling base fabric generates a significant dynamic impact load on the cutter, a cross-cutting blade device for online cutting during winding and changing is provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a cross-cutting device for online cutting of winding and changing rolls, including a mounting frame and a blade holder slidably mounted on the mounting frame. A cutter is mounted on the blade holder, a first driving mechanism for driving the cutter to rotate is mounted on the blade holder, and a second driving mechanism for driving the blade holder to move on the mounting frame is mounted on the blade holder. The second drive mechanism includes a walking servo motor mounted on the blade holder. A chain is arranged on the mounting frame along the displacement direction of the blade holder. A sprocket is provided on the output end of the walking servo motor, and the sprocket meshes with the chain. An adjustment mechanism for controlling the chain tension is provided on the mounting frame. Compared with the prior art, this solution can drive the blade holder to rotate actively through the first drive mechanism and actively disassemble the fabric, reducing the impact on the blade holder. At the same time, in conjunction with the second drive mechanism, the blade holder is moved laterally along the mounting frame, which can disassemble wide-width fabrics, effectively reducing the instability of the cross-cutting blade caused by impact, improving the applicability of the cross-cutting blade, and making it possible for the laminating machine to automatically cut fabric during roll changing without stopping the machine in ultra-wide-width laminating machines.

[0005] Because the length of the mounting frame needs to be greater than the width of the fabric, the overall width of the mounting frame is large, resulting in a long chain. To ensure chain stability and to implement the adjustment mechanism, in some preferred embodiments, the adjustment mechanism includes a set screw. One end of the set screw is threaded to the mounting frame, and the other end is rotatably mounted on the chain. The end of the chain away from the set screw is fixedly mounted on the mounting frame. By rotating the set screw, displacement along its length can be achieved, thereby adjusting the chain tension and ensuring stable and reliable displacement of the tool holder on the mounting frame.

[0006] Because of the long chain length, there is a certain degree of bending variation in the whole. In order to ensure that the chain is within the range and to ensure that the lateral displacement of the tool holder is stable and reliable, in some preferred embodiments, the mounting frame is provided with a positioning mechanism for limiting the displacement range of the chain.

[0007] To implement the positioning mechanism, in some preferred embodiments, the positioning mechanism includes a positioning seat, which is fixedly mounted on a mounting frame. The positioning seat has a positioning groove along the chain direction, and the chain is positioned within the positioning groove. The positioning groove on the positioning seat restricts chain displacement, ensuring that the chain does not bend or deform excessively.

[0008] To implement the first driving mechanism, in some preferred embodiments, the first driving mechanism includes a rotary servo motor, which is fixedly mounted on the tool holder, and the cutting blade is mounted on the output end of the rotary servo motor.

[0009] In some preferred embodiments, the cutter is circular.

[0010] In order to enable the tool holder to slide on the mounting bracket, in some preferred embodiments, the mounting bracket is provided with a linear guide rail, the tool holder is provided with a slider, and the slider is slidably disposed on the linear guide rail.

[0011] The beneficial effects of this utility model are as follows: The cross-cutting device for online cutting during roll-up and roll-changing is driven by a first drive mechanism to rotate actively and disassemble the fabric, reducing the impact on the cutter holder. Simultaneously, in conjunction with a second drive mechanism, the cutter holder is moved laterally along the mounting frame, enabling the disassembly of wide-width fabrics. This effectively reduces the instability of the cross-cutting blade caused by impact, improves the applicability of the cutter, and makes it possible for the laminating machine to automatically cut fabric during roll-changing without stopping the machine in ultra-wide-width laminating machines. This avoids the problem that currently commonly used cross-cutting blade structures suffer from insufficient strength and stability, resulting in significant dynamic impact loads on the cutter from the high-speed traveling base fabric. This is especially true for wide-width laminating machines with a width exceeding 6 meters, where the impact intensity is even more pronounced, making effective cutting difficult under such conditions and causing this process to still mainly rely on manual operation. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is the left view of this utility model; Figure 4 This is the right view of this utility model; Figure 5 This is a top view of the present invention; Figure 6 This is a bottom view of the present invention; Figure 7 yes Figure 2 A magnified view of part A in the image.

[0014] In the diagram: 1. Mounting bracket, 2. Tool holder, 3. Cutting blade; 4. First drive mechanism; 5. Second drive mechanism, 501. Walking servo motor, 502. Chain, 503. Sprocket, 504. Set screw, 505. Positioning seat, 506. Positioning groove; 6. Linear guide rail; 7. Slider. Detailed Implementation

[0015] like Figure 1-7 As shown, a cross-cutting device for online cutting during roll-up and roll-changing includes a mounting frame 1 and a blade holder 2. The blade holder 2 is slidably mounted on the mounting frame 1. A cutter 3 is mounted on the blade holder 2. A first drive mechanism 4 for driving the cutter 3 to rotate is mounted on the blade holder 2. A second drive mechanism 5 for driving the blade holder 2 to move on the mounting frame 1 is mounted on the blade holder 2. The second drive mechanism 5 includes a walking servo motor 501, which is fixedly mounted on the tool holder 2. A chain 502 is provided on the mounting frame 1, and the chain 502 is along the displacement direction of the tool holder 2. A sprocket 503 is provided on the output end of the walking servo motor 501, and the sprocket 503 meshes with the chain 502. An adjustment mechanism is provided on the mounting frame 1, which includes a set screw 504. One end of the set screw 504 is threaded to the mounting frame 1, and the other end of the set screw 504 is rotatably mounted on the chain 502. The end of the chain 502 away from the set screw 504 is fixedly mounted on the mounting frame 1. The adjustment mechanism can control the tension of the chain 502.

[0016] The mounting frame 1 is provided with a positioning mechanism, which is used to limit the displacement range of the chain 502. Specifically, the positioning mechanism includes a positioning seat 505, which is fixedly installed on the mounting frame 1. The positioning seat 505 is provided with a positioning groove 506 along the direction of the chain 502, and the chain 502 is placed in the positioning groove 506.

[0017] Specifically, the first drive mechanism 4 includes a rotary servo motor, which is fixedly mounted on the tool holder 2. The cutter 3 is mounted on the output end of the rotary servo motor and is circular.

[0018] Specifically, the mounting bracket 1 is equipped with a linear guide rail 6, and the tool holder 2 is equipped with a slider 7. The slider 7 is slidably mounted on the linear guide rail 6, so that the tool holder 2 is slidably mounted on the mounting bracket 1.

[0019] Its specific working principle is as follows: Before use, the tension of the chain 502 can be adjusted by rotating the set screw 504. The set screw 504 extends or retracts along the length of the chain 502 and pulls the chain 502 to adjust the tension of the chain 502. When in use, starting the rotary servo motor drives the cutter 3 to rotate, achieving active cutting without "blade slippage," making it suitable for cutting thicker base fabrics. Simultaneously, starting the travel servo motor 501 drives the blade holder 2 to slide back and forth on the mounting frame 1, controlling the back-and-forth movement of the cutter 3 for cutting operations. Furthermore, the rotary servo motor and travel servo motor 501 can be speed-adjusted according to the usage scenario, thus controlling the rotational speed of the cutter 3 and the travel speed of the blade holder 2 respectively, improving the applicability of the cutter 3 and making it possible for the laminating machine to automatically cut fabric during roll changes without stopping the machine in ultra-wide laminating machines.

[0020] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A cross-cutting device for online cutting during winding and changing, characterized in that: It includes a mounting bracket (1) and a blade holder (2) slidably mounted on the mounting bracket (1). A cutter (3) is mounted on the blade holder (2). A first drive mechanism (4) for driving the cutter (3) to rotate is mounted on the blade holder (2). A second drive mechanism (5) for driving the blade holder (2) to move on the mounting bracket (1) is mounted on the blade holder (2). The second drive mechanism (5) includes a walking servo motor (501) mounted on the tool holder (2), a chain (502) is provided on the mounting frame (1) along the displacement direction of the tool holder (2), a sprocket (503) is provided on the output end of the walking servo motor (501), the sprocket (503) meshes with the chain (502), and an adjustment mechanism for controlling the tension of the chain (502) is provided on the mounting frame (1).

2. The cross-cutting device for online cutting during winding and changing of rolls according to claim 1, characterized in that: The adjustment mechanism includes a set screw (504), one end of which is threaded to the mounting frame (1), and the other end of which is rotatably mounted on a chain (502). The end of the chain (502) away from the set screw (504) is fixedly mounted on the mounting frame (1).

3. The cross-cutting device for online cutting during winding and changing of rolls according to claim 1 or 2, characterized in that: The mounting frame (1) is provided with a positioning mechanism for limiting the displacement range of the chain (502).

4. The cross-cutting device for online cutting during winding and changing of rolls according to claim 3, characterized in that: The positioning mechanism includes a positioning seat (505), which is fixedly installed on the mounting frame (1). The positioning seat (505) has a positioning groove (506) along the direction of the chain (502), and the chain (502) is located in the positioning groove (506).

5. The cross-cutting device for online cutting during winding and changing of rolls according to claim 1, characterized in that: The first drive mechanism (4) includes a rotary servo motor, which is fixedly mounted on the tool holder (2), and the cutter (3) is mounted on the output end of the rotary servo motor.

6. The cross-cutting device for online cutting during winding and changing of rolls according to claim 5, characterized in that: The cutter (3) is circular.

7. The cross-cutting device for online cutting during winding and changing of rolls according to claim 1, characterized in that: The mounting bracket (1) is provided with a linear guide rail (6), and the tool holder (2) is provided with a slider (7), which is slidably mounted on the linear guide rail (6).

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