Metallized film slitting device

Abstract

The present invention relates to a metallized film slitting device, comprising a slitting roller and a guide roller arranged opposite to each other, a gap being present between the guide roller and the slitting roller, a multi-component slitting assembly being provided axially on the slitting roller, the slitting assembly comprising a plurality of annular wind cutters arranged circumferentially along the outer side of the slitting roller, the annular wind cutters being movable radially along the guide roller, an elastic member being connected between the annular wind cutters and the slitting roller, a pushing portion and a suction and pulling portion being provided between the annular wind cutters and the slitting roller, the pushing portion being used to drive the annular wind cutters radially away from the slitting roller, and the suction and pulling portion being used to drive the annular wind cutters radially close to the slitting roller. The present application can avoid the part of the film body not being slid off, and also avoid the annular wind cutters from excessively contacting the surface of the slitting roller, and avoid the annular wind cutters from being damaged due to wear and tear during long-term operation, that is, the slitting quality of the film body is ensured, and also the service life of the annular wind cutters is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of metallized film equipment, and in particular to a metallized film slitting device. Background Art

[0002] The metallized film slitting machine is a device that slits the metallized film processed by the vacuum coating machine according to the width requirements.

[0003] A Chinese invention patent with publication number CN106395480B discloses a rotatable metallized film slitting knife device, including a slitting knife, a horizontal adjustment mechanism for adjusting the left and right movement of the slitting knife, and a swing mechanism for adjusting the up and down swing position of the slitting knife; the horizontal adjustment mechanism includes a slitting knife sleeve and a slitting knife mounting shaft, and the slitting knife sleeve is sleeved on the periphery of the slitting knife mounting shaft; the swing mechanism includes a guide assembly, an elastic connector, and an elastic member.

[0004] As in the above-mentioned prior art solution, in order to better cut the metallized film, the slitting knife is connected by an elastic part, so that the slitting knife has a certain degree of mobility when cutting the metallized film. When slitting the metallized film, it is difficult to control the distance at which the slitting knife cuts the metallized film. If the slitting knife excessively contacts the support surface of the metallized film, it is easy to cause wear to the slitting knife, affecting the service life of the slitting knife. If the thickness or material of the metallized film causes the slitting knife to be away from the metallized film to a certain extent, the metallized film cannot be cut well, affecting the slitting production quality of the metallized film. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a metallized film slitting device, and the specific technical solution is as follows:

[0006] The metallized film slitting device comprises a slitting roller and a guide roller arranged opposite to each other, a gap exists between the guide roller and the slitting roller, the slitting roller is provided with a multi-component slitting assembly in the axial direction, the slitting assembly comprises a plurality of annular wind cutters arranged along the circumference of the outer side of the slitting roller, the annular wind cutters can move radially along the guide roller, an elastic member is connected between the annular wind cutter and the slitting roller, a pushing part and a suction and pulling part are further provided between the annular wind cutter and the slitting roller, the pushing part is used to drive the annular wind cutter radially away from the slitting roller, and the suction and pulling part is used to drive the annular wind cutter radially close to the slitting roller, so as to maintain a constant distance between the slitting roller and the annular wind cutter through the pushing part and the suction and pulling part.

[0007] As an improvement of the above technical solution: the pushing part includes a first electromagnet installed on the outside of the slitting roller and a first magnet block installed on the inside of the annular wind cutter, the first electromagnet and the first magnet block are coaxially arranged, the suction and pulling part includes a second electromagnet installed on the outside of the slitting roller and a second magnet block installed on the annular wind cutter, the second electromagnet and the second magnet block are coaxially arranged, the pushing part is provided with two groups, and the suction and pulling part is located between the two groups of the pushing parts, the opposite ends between the second magnet block and the second electromagnet are arranged with different poles, and the opposite ends between the first electromagnet and the first magnet block are arranged with the same poles.

[0008] As an improvement of the above technical solution: guide columns are connected to both sides of the annular wind cutter near the slitting roller, the other end of the guide column movably extends to the interior of the slitting roller, and the guide column is extended along the radial direction of the slitting roller, the elastic member includes a second spring, the second spring is sleeved on the surface of the guide column, one end of the second spring is connected to the annular wind cutter, and the other end of the second spring is connected to the slitting roller.

[0009] As an improvement of the above technical solution: it also includes a controller, a displacement sensor is installed on the guide column, and the displacement sensor, the first electromagnet and the second electromagnet are all connected to the controller.

[0010] As an improvement of the above technical solution: it also includes a rotating part 1 and a rotating part 2, the rotating part 1 is used to drive the guide roller to rotate, the rotating part 2 is used to drive the slitting roller to rotate, the rotating part 1 includes a mounting frame, the rotating part 1 includes a driving motor 2 installed on the mounting frame, the output shaft of the driving motor 2 is fixedly connected to the center of one end of the slitting roller, the rotating part 2 includes a driving motor 1 installed on the mounting frame, the output shaft of the driving motor 1 is fixedly connected to the center of one end of the guide roller, and the driving motor 1 and the driving motor 2 are both connected to a controller.

[0011] As an improvement of the above technical solution: arc-shaped guide blocks are fixedly connected on both sides of the annular wind cutter, and the arc-shaped guide blocks are connected to the annular wind cutter through a connecting member, and the annular wind cutter can be moved radially toward the slitting roller through the connecting member. The connecting member includes a spring 1 and a connecting plate, and the connecting plate is fixedly connected to the annular wind cutter, and the spring 1 is fixedly connected between the arc-shaped guide block and the connecting plate.

[0012] As an improvement of the above technical solution: a vacuum cleaner is provided inside the slitting roller, an annular material extraction main pipe is installed on the vacuum cleaner, the dust extraction end of the vacuum cleaner is connected to the annular material extraction main pipe through a pipe, the annular wind cutter is connected to a material extraction branch pipe, a plurality of branch nozzles are installed and connected on the side of the material extraction branch pipe away from the slitting roller, and the end of the annular material extraction main pipe located outside the slitting roller is connected to the material extraction branch pipe through a pipe.

[0013] The beneficial effects of the present invention are:

[0014] 1. When the annular wind cutter is cutting the film body, if the thickness of the film body or the material is uneven to the point that the position of the annular wind cutter deviates, the displacement sensor can be used to monitor the change value of the guide column at the first time, and the signal can be transmitted to the controller. The controller can control the second drive motor to drive the slitting roller to rotate slowly or stop rotating, and then start and / or close the first electromagnet and / or the second electromagnet to adjust the displacement of the annular wind cutter and the guide column to correspond to the value of the displacement sensor during debugging, so that the annular wind cutter is calibrated to the position that just cuts the film body, thereby ensuring that the film body is effectively cut and part of the film body is not cut off. At the same time, it also prevents the annular wind cutter from excessively contacting the surface of the slitting roller and avoids damage caused by wear and tear of the annular wind cutter during long-term operation, thereby ensuring the cutting quality of the film body and the service life of the annular wind cutter.

[0015] 2. While the film body is being cut, the vacuum cleaner can be started so that the waste generated during cutting can be extracted through the hose, guide column, extraction branch pipe and multiple nozzles to splash onto the film body and affect it, thereby further improving the cutting production quality of the film body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the connection structure between the slitting roller and the annular wind cutter in the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure numerals: 1, guide roller; 100, film body; 2, slitting roller; 3, annular wind cutter; 4, arc-shaped guide block; 41, spring one; 42, connecting plate; 5, mounting bracket; 6, drive motor one; 7, drive motor two; 8, vacuum cleaner; 81, annular material extraction main pipe; 9, first electromagnet; 10, first magnet block; 11, second electromagnet; 12, second magnet block; 13, guide column; 130, displacement sensor; 131, hose; 14, material extraction branch pipe; 141, nozzle; 15, spring two. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] Example:

[0022] Please refer to Figure 1-Figure 3 The metallized film slitting device comprises a slitting roller 2 and a guide roller 1 which are arranged opposite to each other, and there is a gap between the guide roller 1 and the slitting roller 2. The slitting roller 2 is provided with a plurality of slitting components in the axial direction. Specifically, the plurality of grouping components are evenly distributed on the slitting roller 2. The film body 100 can be slit into a plurality of groups by the plurality of slitting components, so that the film body 100 can be evenly slit. The slitting component comprises a plurality of annular wind cutters 3 which are arranged along the circumference of the outer side of the slitting roller 2. The annular wind cutter 3 can move radially along the guide roller 1. An elastic member is connected between the annular wind cutter 3 and the slitting roller 2. A pushing portion and a suction and pulling portion are further provided between the annular wind cutter 3 and the slitting roller 2. The pushing portion is used to drive the annular wind cutter 3 radially away from the slitting roller 2, and the suction and pulling portion is used to drive the annular wind cutter 3 radially close to the slitting roller 2, so as to maintain a constant distance between the slitting roller 2 and the annular wind cutter 3 through the pushing portion and the suction and pulling portion.

[0023] In an optional embodiment: the pushing part includes a first electromagnet 9 installed on the outside of the slitting roller 2 and a first magnet block 10 installed on the inside of the annular wind cutter 3, the first electromagnet 9 and the first magnet block 10 are coaxially arranged, the suction and pulling part includes a second electromagnet 11 installed on the outside of the slitting roller 2 and a second magnet block 12 installed on the annular wind cutter 3, the second electromagnet 11 and the second magnet block 12 are coaxially arranged, the pushing part is provided with two groups, and the suction and pulling part is located between the two groups of pushing parts, the facing ends between the second magnet block 12 and the second electromagnet 11 are arranged with different poles, specifically N / S or S / N poles, and the facing ends between the first electromagnet 9 and the first magnet block 10 are arranged with the same poles, specifically N / N poles or S / S. Furthermore, the two first magnet blocks 10 are located on both sides of the annular wind cutter 3, and the second magnet block 12 is located on the middle side of the annular wind cutter 3, so that the pushing part or the suction and pulling part can better cooperate with each other to force the annular wind cutter 3 to move.

[0024] In an optional embodiment: guide columns 13 are connected to both sides of the annular wind cutter 3 near the slitting roller 2, the other end of the guide column 13 is movably extended to the inside of the slitting roller 2, and the guide column 13 is extended along the radial direction of the slitting roller 2, and the spring 15 is sleeved on the surface of the guide column 13, one end of the spring 15 is connected to the annular wind cutter 3, and the other end of the spring 15 is connected to the slitting roller 2.

[0025] In an optional embodiment: a controller is also included, a displacement sensor 130 is installed on the guide column 13, the displacement sensor 130, the first electromagnet 9 and the second electromagnet 11 are all connected to the controller, and the controller and the displacement sensor 130 are wirelessly communicated or electrically connected.

[0026] In an optional embodiment: it also includes a rotating part 1 and a rotating part 2, the rotating part 1 is used to drive the guide roller 1 to rotate, the rotating part 2 is used to drive the slitting roller 2 to rotate, the rotating part 1 includes a mounting frame 5, the rotating part 1 includes a driving motor 2 7 installed on the mounting frame 5, the output shaft of the driving motor 2 7 is fixedly connected to the center of one end of the slitting roller 2, the rotating part 2 includes a driving motor 1 6 installed on the mounting frame 5, the output shaft of the driving motor 1 6 is fixedly connected to the center of one end of the guide roller 1, and the driving motor 1 6 and the driving motor 2 7 are both connected to the controller.

[0027] In an optional embodiment: arc-shaped guide blocks 4 are fixedly connected to both sides of the annular wind cutter 3, and the arc-shaped guide blocks 4 are connected to the annular wind cutter 3 through a connecting piece, and the annular wind cutter 3 can be moved radially toward the slitting roller 2 through the connecting piece. The connecting piece includes a spring 41 and a connecting plate 42, and the connecting plate 42 is fixedly connected to the annular wind cutter 3. The spring 41 is fixedly connected between the arc-shaped guide block 4 and the connecting plate 42. The arc-shaped guide block 4 can be used to guide the film body 100 during slitting to avoid wrinkles when the film body 100 is slitting.

[0028] In an optional embodiment: a vacuum cleaner 8 is provided inside the slitting roller 2, and an annular material extraction main pipe 81 is installed on the vacuum cleaner 8. The dust extraction end of the vacuum cleaner 8 is connected to the annular material extraction main pipe 81 through a pipeline. A material extraction branch pipe 14 is connected to the annular wind cutter 3. A plurality of branch nozzles 141 are installed and connected to the side of the material extraction branch pipe 14 away from the slitting roller 2. The end of the annular material extraction main pipe 81 located outside the slitting roller 2 is connected to the material extraction branch pipe 14 through a pipeline.

[0029] Specifically, in this application, the working principle of the electromagnet is based on Ampere's law and Biot-Savart's law. When current passes through the coil, a magnetic field is generated around it. The strength of the magnetic field is proportional to the magnitude of the current and can be expressed by the following formula:

[0030] B is the magnetic field strength (unit: Tesla, T),

[0031] μ0 is the vacuum magnetic permeability, which is about 4π×10-7T·m / A.

[0032] N is the number of turns of the coil,

[0033] I is the current passing through the coil (in amperes, A),

[0034] L is the length of the coil (unit: meter, m),

[0035] Magnetic field strength is proportional to current: From the above formula, it can be seen that the magnetic field strength B is proportional to the current I. This means that the greater the current, the greater the magnetic field strength generated.

[0036] The magnetic force is proportional to the strength of the magnetic field: the magnitude of the magnetic force is proportional to the square of the magnetic field strength. Therefore, when the magnetic field strength increases, the magnetic force increases significantly.

[0037] When the facing ends of two magnets (one is a permanent magnet and the other is an electromagnet) have the same polarity, a repulsive force will be generated between them. The magnitude of this repulsive force can be approximately expressed by the following formula:

[0038] F is the magnetic force (unit: Newton, N),

[0039] μ0 is the magnetic permeability of vacuum,

[0040] m1 and m2 are the distances between the two magnets, r is the distance between the two magnets,

[0041] Since the magnetic moment m2 of the electromagnet is proportional to the current I, it can be written as:

[0042] m2=kI, where k is a constant related to the number of turns and geometry of the coil. Substitute m2 into the magnetic force formula:

[0043] From this formula, we can see that the magnetic force F is proportional to the current I. Therefore, when the current intensity of the electromagnet increases, the magnetic force generated will also increase, and thus the thrust on the other board will also increase, that is, the greater the current intensity of the electromagnet, the greater the magnetic field intensity and magnetic force generated, and thus the greater the thrust on the other board.

[0044] Specifically, before the film body 100 is cut, debugging is performed: the guide column 13 is moved to drive the annular wind cutter 3 to move toward the film body 100 pre-placed on the guide roller 1 and cut, and the displacement sensor 130 also monitors the displacement value of the guide column 13 at this time, so that the displacement value of the guide column 13 at this time corresponds to just cutting off the film body 100;

[0045] When the film body 100 is to be cut, the second electromagnet 11 is controlled to drive the second magnet block 12 to be attracted close, so that the annular wind cutter 3 is close to the slitting roller 2. First, the film body 100 is introduced and rolled onto the guide roller 1 through the material roller of the prior art, so that the film body 100 is located between the guide roller 1 and the slitting roller 2. Then, the second electromagnet 11 is stopped, and the annular wind cutter 3 is brought close to the film body 100 through the elastic force of the spring 2 15. Then, the first electromagnet 9 is started, so that the first electromagnet 9 pushes the first magnet block 10 away from the slitting roller 2. Then, the displacement sensor 130 monitors the movement of the guide column 13, so that the annular wind cutter 3 moves to a specified distance. Then, the slitting roller 2 is driven to rotate by running the driving motor 2 7, so that the annular wind cutter 3 just cuts the film body 100 introduced onto the guide roller 1.

[0046] When the annular wind cutter 3 is cutting the film body 100, if the thickness or material of the film body 100 is uneven to the point that the position of the annular wind cutter 3 deviates, the displacement sensor 130 can be used to monitor the change value of the guide column 13 in the first time, and the signal can be transmitted to the controller. The controller can control the driving motor 2 7 to drive the slitting roller 2 to rotate slowly or stop rotating, and then start and / or close: the first electromagnet 9 and / or the second electromagnet 11, so as to adjust the displacement of the annular wind cutter 3 and the guide column 13 so that it corresponds to the value of the displacement sensor 130 during debugging, so that the annular wind cutter 3 is calibrated to the position that just cuts the film body 100, so that the film body 100 can be effectively cut and part of the film body 100 is prevented from being not cut off. At the same time, it also prevents the annular wind cutter 3 from excessively contacting the surface of the slitting roller 2, and prevents the annular wind cutter 3 from being damaged due to wear and tear during long-term operation, thereby ensuring the cutting quality of the film body 100 and the service life of the annular wind cutter 3.

[0047] While the film body 100 is being cut, the vacuum cleaner 8 can be started so that the vacuum cleaner 8 can extract the waste generated during cutting through the hose 131, the guide column 13, the extraction branch pipe 14 and the multiple branch nozzles 141, and splash the waste onto the film body 100 to affect it, thereby further improving the cutting production quality of the film body 100.

[0048] And through the indirect contact between the first magnet block 10 and the first electromagnet 9 in the pushing part of the present application, and the indirect contact between the second electromagnet 11 and the second magnet block 12 in the suction and pulling part, when the pushing part drives the annular wind cutter 3 to move or the suction and pulling part drives the annular wind cutter 3 to move, the mutual influence between them, such as when both the pushing part and the suction and pulling part adopt a hydraulic structure to move the annular wind cutter 3, the movement of the annular wind cutter 3 between them will be restricted by the hydraulic rod connected to the annular wind cutter 3 and cannot be moved effectively.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metallized film slitting device, comprising a slitting roller (2) and a guide roller (1) arranged opposite to each other, wherein a gap exists between the guide roller (1) and the slitting roller (2), characterized in that: The slitting roller (2) is provided with a multi-component slitting assembly in the axial direction, and the slitting assembly includes a plurality of annular wind cutters (3) arranged along the circumference of the outer side of the slitting roller (2); the annular wind cutters (3) can move radially along the guide roller (1); an elastic member is connected between the annular wind cutter (3) and the slitting roller (2); a pushing part and a suction and pulling part are also provided between the annular wind cutter (3) and the slitting roller (2); the pushing part is used to drive the annular wind cutter (3) radially away from the slitting roller (2); the suction and pulling part is used to drive the annular wind cutter (3) radially close to the slitting roller (2), so as to maintain a constant distance between the slitting roller (2) and the annular wind cutter (3) through the pushing part and the suction and pulling part.

2. The metallized film slitting device according to claim 1, characterized in that: The pushing part comprises a first electromagnet (9) installed on the outside of the slitting roller (2) and a first magnet block (10) installed on the inside of the annular wind cutting knife (3), the first electromagnet (9) and the first magnet block (10) being coaxially arranged, the suction and pulling part comprises a second electromagnet (11) installed on the outside of the slitting roller (2) and a second magnet block (12) installed on the annular wind cutting knife (3), the second electromagnet (11) and the second magnet block (12) being coaxially arranged, the pushing part is provided with two groups, and the suction and pulling part is located between the two groups of the pushing parts, the opposite ends between the second magnet block (12) and the second electromagnet (11) are arranged with different poles, and the opposite ends between the first electromagnet (9) and the first magnet block (10) are arranged with the same poles.

3. The metallized film slitting device according to claim 2, characterized in that: Guide columns (13) are connected to both sides of the annular wind cutting knife (3) near the slitting roller (2), the other end of the guide column (13) movably extends to the inside of the slitting roller (2), and the guide column (13) is arranged to extend radially along the slitting roller (2), and the elastic member includes a second spring (15), the second spring (15) is sleeved on the surface of the guide column (13), one end of the second spring (15) is connected to the annular wind cutting knife (3), and the other end of the second spring (15) is connected to the slitting roller (2).

4. The metallized film slitting device according to claim 3, characterized in that: It also includes a controller. A displacement sensor (130) is installed on the guide column (13). The displacement sensor (130), the first electromagnet (9) and the second electromagnet (11) are all connected to the controller.

5. The metallized film slitting device according to claim 3, characterized in that: The invention also comprises a rotating part 1 and a rotating part 2, wherein the rotating part 1 is used to drive the guide roller (1) to rotate, and the rotating part 2 is used to drive the slitting roller (2) to rotate, the rotating part 1 comprises a mounting frame (5), the rotating part 1 comprises a driving motor 2 (7) mounted on the mounting frame (5), the output shaft of the driving motor 2 (7) is fixedly connected to the center of one end of the slitting roller (2), the rotating part 2 comprises a driving motor 1 (6) mounted on the mounting frame (5), the output shaft of the driving motor 1 (6) is fixedly connected to the center of one end of the guide roller (1), and the driving motor 1 (6) and the driving motor 2 (7) are both connected to a controller.

6. The metallized film slitting device according to claim 4, characterized in that: Both sides of the annular wind cutter (3) are fixedly connected with arc-shaped guide blocks (4), and the arc-shaped guide blocks (4) are connected to the annular wind cutter (3) through a connecting piece, and the annular wind cutter (3) can be moved radially toward the slitting roller (2) through the connecting piece. The connecting piece includes a spring 1 (41) and a connecting plate (42), and the connecting plate (42) is fixedly connected to the annular wind cutter (3). The spring 1 (41) is fixedly connected between the arc-shaped guide block (4) and the connecting plate (42).

7. The metallized film slitting device according to claim 5, characterized in that: A vacuum cleaner (8) is provided inside the slitting roller (2), and an annular material extraction main pipe (81) is installed on the vacuum cleaner (8). The dust extraction end of the vacuum cleaner (8) is connected to the annular material extraction main pipe (81) through a pipeline, and the annular material extraction main pipe (81) is connected to the guide column (13) through a hose (131). The annular wind cutting knife (3) is connected to a material extraction branch pipe (14), and a plurality of branch nozzles (141) are installed and connected on the side of the material extraction branch pipe (14) away from the slitting roller (2). The end of the annular material extraction main pipe (81) located outside the slitting roller (2) is connected to the material extraction branch pipe (14) through a pipeline.

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