Device for rolling convex points of thin film

Abstract

The invention provides a device for rolling convex points of a thin film, comprising a film unwinding and winding module, a main roller, a pressure roller, and an adjustment module arranged in a vacuum chamber; the main roller and the pressure roller are both arranged between the unwinding roller and the winding roller; the main roller is arranged on one side of the film and abuts against the side of the film, and a plurality of pressure rollers are provided, at least one of the plurality of pressure rollers corresponds to the abutment of the main roller on one side of the film, and is arranged on the other side of the film, and is used to roll the convex points on the film after coating; corresponding to the pressure roller arranged on the other side of the film, two adjustment modules are arranged in parallel at both ends of the pressure roller, and are used to adjust the pressure roller; the adjustment module comprises a slide rail, a slider, a spring and a limit block for limiting the spring, the slider is slidably installed on the slide rail, the spring is limited between the slider and the limit block, and the limit block is arranged at the far slider end of the slide rail; the two ends of the pressure roller are respectively rotatably installed on two parallel sliders, so that when the pressure roller rolls the convex points, the spring forms a buffer for the pressure roller.

Description

Technical Field

[0001] The invention relates to the technical field of film coating, and in particular to a device for rolling convex points of a thin film. Background Art

[0002] The vacuum coating device can be used to coat thin film substrates. After unwinding the film, the film substrate is coated over the evaporation boat and then reeled up by the reel. However, the sputtering generated during the evaporation process will affect the coating quality. For example, when coating aluminum film, the aluminum composite current collector forms a metal film layer of about 1um on the surface of the polymer base film by vacuum thermal evaporation; but the aluminum wire is heated and evaporated in the evaporation boat. During the evaporation process, aluminum splashing will occur, causing large particles to deposit on the surface of the film substrate, forming the so-called convex point defect in the field. When the reeling mechanism reels the film with convex points, the convex points will cause the film of the adjacent reeling layer to be punctured.

[0003] The existing coating equipment is provided with a pressing roller, which can roll and press the convex points on the coated film, but there is no roller supporting the film on the other side of the film, resulting in that the convex points may pierce the film during the rolling process.

[0004] Therefore, a new solution for rolling film convex points is needed to solve this problem. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a device for rolling convex points of a thin film to solve the above-mentioned technical problems.

[0006] The technical method adopted by the present invention to solve its technical problem is: a device for rolling convex points of a thin film, the improvement of which is that it includes a thin film unwinding and winding module, a main roller, a pressure roller, and an adjustment module arranged in a vacuum chamber; the thin film unwinding and winding module includes a unwinding roller and a winding roller, the unwinding roller is used to unwind the thin film, and the winding roller is used to receive the film after coating; the main roller and the pressure roller are both arranged between the unwinding roller and the winding roller; the main roller is arranged on one side of the thin film and abuts against the side of the thin film, and a plurality of pressure rollers are provided, at least one of the plurality of pressure rollers corresponds to the main roller on one side of the thin film The pressure roller is abutted on the other side of the film and is arranged on the other side of the film for rolling the convex points on the film after coating; corresponding to the pressure roller arranged on the other side of the film, two adjustment modules are arranged in parallel at both ends of the pressure roller for adjusting the pressure roller; the adjustment module includes a slide rail, a slider, a spring and a limit block for limiting the spring, the slider is slidably installed on the slide rail, the spring is limited between the slider and the limit block, and the limit block is arranged at the far end of the slider of the slide rail; the two ends of the pressure roller are respectively rotatably installed on two parallel sliders, so that when the pressure roller rolls the convex points, the spring forms a buffer for the pressure roller.

[0007] In the above structure, one end of the spring is fixed on the sliding block, and the other end is fixed on the limiting block.

[0008] In the above structure, other pressing rollers among the plurality of pressing rollers are arranged on both sides of the film, one side of which abuts against the film and the other side does not abut against the film, and are used to roll the convex points on the film after coating;

[0009] Corresponding to the pressing roller whose other side does not abut against the film, two adjustment modules are arranged in parallel at both ends of the pressing roller.

[0010] In the above structure, the distance between the pressing rollers on both sides of the film decreases along the film traveling direction.

[0011] In the above structure, along the film-moving direction of the coated film, the distance between the slider in each adjustment module and the corresponding limit block is reduced in sequence, so that the tension of the corresponding spring is increased in sequence.

[0012] In the above structure, the adjustment module also includes a first screw and a nut. One end of the first screw is fixed on the slider. After passing through the spring and the limit block in sequence, the other end is locked by the nut, so that the tightness of the spring can be adjusted by adjusting the distance of the slider on the first screw from the limit block.

[0013] In the above structure, the slider is also provided with a lug, and a cleaning roller for cleaning the pressure roller is provided on the lug;

[0014] The cleaning roller is rotatably mounted on the supporting ear.

[0015] In the above structure, the support ear is provided with a sliding hole and a second screw rod, the cleaning roller is rotatably mounted in the sliding hole and can slide along the sliding hole, so as to adjust the distance and position of the cleaning roller relative to the pressure roller;

[0016] The second screw rod is screwed on the support ear and is used for locking the cleaning roller on the sliding hole.

[0017] In the above structure, it also includes an evaporation boat for coating the thin film in the vacuum chamber, and the evaporation boat is arranged directly below the main roller;

[0018] The film passes around the left side, the lower side and the right side of the main roller in turn, so that the film is coated on the lower side of the main roller and then released from the right side of the main roller;

[0019] Corresponding to the abutment between the right side of the main roller and the inner side of the film, the pressure rollers arranged on the other side of the film are all arranged on the right side of the main roller.

[0020] The above structure also includes a baffle plate arranged in the vacuum chamber, which is arranged between the evaporation boat and the pressure roller on the right side of the main roller to prevent the plating material from evaporating onto the pressure roller on the right side of the main roller.

[0021] The beneficial effects of the present invention are as follows: when rolling the convex points of the film, the pressure roller on the other side of the film will press against the film from the other side of the film to form support for the film, thereby preventing the convex points from puncturing the film during the rolling process of the convex points; the film after rolling is collected by the winding roller, thereby preventing the convex points from puncturing the film of the adjacent winding layer after the winding roller winds up the film with the convex points; and the temperature in the vacuum chamber is high, and the convex points on the film are relatively soft, so the convex points are rolled at this time, and the rolling effect is good; buffering of the pressure roller is achieved, and when encountering a film with convex points, the pressure roller can move back due to the presence of the spring, and the relative distance of the pressure roller with respect to the main roller is adjusted, which can adapt to convex points of different heights, thereby preventing the convex points from not being able to pass through the pressure roller and causing the film to tear. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 The present invention is a schematic structural diagram of one embodiment of a device for rolling convex points on a thin film.

[0023] Attached Figure 2-3 The present invention is a schematic structural diagram of a device for rolling protrusions on a thin film in which the pressing rollers are arranged on both the inner and outer sides of the thin film.

[0024] Attached Figure 4 The present invention is a schematic diagram of the enlarged structure of a pressing roller and an adjusting module in a device for rolling convex points of a thin film.

[0025] Attached Figure 5 The invention discloses an enlarged structural schematic diagram of a cleaning roller in a device for rolling convex points of a thin film.

[0026] Attached Figure 6 The present invention is a schematic structural diagram of a second embodiment of a device for rolling protrusions on a thin film.

[0027] Among them, 1. film unwinding and winding module; 3. evaporation boat; 4. unwinding roller; 5. winding roller; 6. passing roller; 7. pressure roller; 8. main roller; 9. baffle; 20. adjustment module; 21. slide rail; 22. slider; 23. spring; 24. limit block; 25. first screw; 26. nut; 221. support ear; 222. cleaning roller; 223. slide hole; 224. second screw. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0030] Combination Figure 1As shown, the present invention discloses a device for rolling convex points of a thin film, comprising a thin film unwinding and winding module 1 arranged in a vacuum chamber, an evaporation boat 3 for coating the thin film, a plurality of pressure rollers 7, a main roller 8, and an adjustment module 20, wherein the thin film unwinding and winding module 1 comprises an unwinding roller 4, a winding roller 5 and at least one passing roller 6, the passing roller 6 is arranged between the unwinding roller 4 and the winding roller 5, and is used for turning the film; the main roller 8 and the pressure roller 7 are both arranged between the unwinding roller 4 and the winding roller 5; the main roller 8 is arranged on the inner side of the film and abuts against the inner side of the film, and corresponding to the abutment of the main roller 8 on the inner side of the film, at least one pressure roller 7 of the plurality of pressure rollers 7 is arranged on the outer side of the film; the evaporation boat 3 is arranged on the inner side of the film; The unwinding roller 4 releases the film, and the film turns through the passing roller 6, and bypasses the left side, the lower side and the right side of the main roller 8 in turn. When the film is on the lower side of the main roller 8, the coating material evaporated by the evaporation boat 3 is a thin film coating. After the film is coated, it is released from the right side of the main roller 8. If sputtering occurs during the evaporation process of the coating, there will be convex points on the surface of the film released from the right side of the main roller 8. The right side of the main roller 8 abuts against the inner side of the film. Correspondingly, the at least one pressing roller 7 arranged on the outside of the film rolls the convex points on the film on the right side of the main roller 8. In this way, when the pressing roller 7 on the outside of the film rolls the convex points on the film, the main roller 8 on the inside of the film moves from The inner side of the film is pressed against the film to form a support for the film, so as to prevent the convex points from puncturing the film during the rolling process. After the rolling is completed, the film is collected by the winding roller 5, so as to prevent the convex points from puncturing the film of the adjacent winding layer after the winding roller 5 rolls up the film with the convex points. In addition, the temperature in the vacuum chamber is relatively high. After the coating is just completed, the convex points on the film are relatively soft. At this time, the convex points are rolled, and the rolling effect is good. Corresponding to the pressing roller 7 arranged on the outer side of the film, two parallel adjustment modules 20 are arranged at both ends of the pressing roller 7 for adjusting the pressing roller. The adjustment module 20 includes a slide rail 21, a slider 22, a spring 23, and a limiter 24. The limit block 24 of the spring 23, the first screw 25 and the nut 26, the slider 22 is slidably installed on the slide rail 21, one end of the spring 23 is fixed on the slider 22, and the other end is fixed on the limit block 24. The limit block 24 is arranged at the end of the slide rail 21 far from the slider 22, and one end of the first screw 25 is fixed on the slider 22. After passing through the spring 23 and the limit block 24 in sequence, the other end is locked by the nut 26, so that the position of the movable limit block 24 on the first screw 25 is fixed, and then locked and fixed by the nut 26. The tightness of the spring 23 can be adjusted by adjusting the distance between the slider 22 and the limit block 24 on the first screw 25;The two ends of the pressure roller 7 are rotatably mounted on two parallel sliders 22 (the rotation of the pressure roller 7 is achieved by a motor or cylinder drive, and this driving method is a conventional application method in the technical field, so the detailed description of this driving method is omitted here), so that when the pressure roller 7 rolls on the convex point, the spring 23 forms a buffer for the pressure roller 7. When the pressure roller 7 rolls on the convex point, the convex point squeezes the pressure roller 7 to compress the spring 23. After passing through the convex point, the spring 23 returns to its original position, realizing the back and forth movement of the pressure roller 7, adjusting the relative distance of the pressure roller 7 relative to the main roller 8, and avoiding the convex point from not being able to pass through the pressure roller 7 and causing the film to tear; especially when the convex point is too large, for example, the height of the convex point exceeds the distance between the pressure roller 7 and the main roller 8, if there is no buffering of the pressure roller 7 by the spring 23, the relative distance between the pressure roller 7 and the main roller 8 cannot be increased, which easily causes the convex point to tear the film. In addition, by adjusting the tightness of the spring 23, the pressure roller 7 can adapt to convex points of different heights, and different roller pressures can be applied to the convex points. ;

[0031] The main roller 8 is a cooling roller, which can cool the film after coating. The diameter of the main roller 8 is larger than that of the pressing roller 7. Since the main roller 8 has a larger diameter, the supporting surface of the film is larger. When the other side of the film is rolled by the pressing roller 7, better support can be formed, further preventing the convex points from piercing the film.

[0032] The pressure rollers 7 are all active rollers and can be driven by a motor or a cylinder (motor or cylinder drive is a conventional application method in this technical field, so the specific description of the motor or cylinder drive is omitted here). The pressure rollers 7 on the inner and outer sides of the film rotate along the film moving direction; further, the main roller 8 rotates along the film moving direction, which has a better effect of rolling the convex points of the film and also avoids the film from being torn when rolling the convex points.

[0033] Further, see Figure 2 , Figure 3 and Figure 4 As shown, the pressing rollers 7 are provided in plurality, at least one of the plurality of pressing rollers 7 is arranged on the other side of the film corresponding to the abutment of the main roller 8 on one side of the film; the other pressing rollers 7 among the plurality of pressing rollers 7 are arranged on both sides inside and outside the film, one side of which abuts on the film and the other side does not abut on the film, and are used to roll the convex points on the film after coating, to ensure that when the pressing roller 7 not abutting on the film rolls the convex points, the pressing roller 7 abutting on the film forms a support for the film, and further rolls the convex points on the film after coating; the spacing between the pressing rollers 7 abutting on the inner and outer sides of the film decreases along the film moving direction of the film after coating, and the spacing becomes smaller and smaller, thereby forming a progressive rolling of the convex points, so that the height of the convex points meets the requirements step by step; combined with Figure 1 and Figure 4As shown, corresponding to the pressing roller 7 on the other side that does not abut against the film, two adjusting modules 20 are arranged in parallel at both ends of each pressing roller 7 that does not abut against the film. Along the film-moving direction of the film after coating, the distance between the slider 22 in each adjusting module 20 and the corresponding limit block 24 is reduced successively, and the tension of the corresponding spring 23 is increased successively. When the pressing roller 7 rolls the convex point, the rolling pressure on the convex point also increases successively, so that the convex point can be rolled progressively when rolling the convex point. For example, the first pressing roller 7 first presses the convex point a little smaller, the second pressing roller 7 increases the force to press the convex point a little smaller, and the third pressing roller 7 adds more force to press the convex point a little smaller, thereby realizing the step-by-step reduction of the convex point and further reducing the risk of the convex point piercing the film. Because the convex points are pressed smaller and smaller with the subsequent pressing rollers 7, it is necessary to make the distance between the pressing rollers 7 and the main roller closer and closer to better press the convex points. Therefore, while the roller pressures of the first pressing roller 7, the second pressing roller 7 and the third pressing roller 7 are increasing, the distances between the first pressing roller 7, the second pressing roller 7 and the third pressing roller 7 and the axis of the main roller are closer and closer.

[0034] Reference Figure 5 As shown, the slider 22 is also provided with a support ear 221, and the support ear 221 is provided with a cleaning roller 222 for cleaning the pressure roller 7. The support ear 221 is provided with a sliding hole 223, and the cleaning roller 222 is rotatably installed in the sliding hole 223 (the rotation of the cleaning roller 222 can be achieved through a bearing, for example, the cleaning roller 222 is rotatably installed in the sliding hole 223 through a bearing, and the bearing is a conventional application means in the technical field, so the detailed description of the bearing is omitted here), and can slide along the sliding hole 223 to adjust the distance and position of the cleaning roller 222 relative to the pressure roller 7, so as to adjust the force of the cleaning roller 222 when cleaning the pressure roller 7. A second screw 224 is also screwed on the support ear 221, which is used to lock the cleaning roller 222 on the sliding hole 223, so as to fix the cleaning roller 222 after adjusting the distance and position of the cleaning roller 222 to the pressure roller 7. The cleaning roller 222 can be a sticky roller or a polishing roller to clean the pressure roller 7. When the cleaning roller 222 is a sticky roller, the sticky roller adheres to the convex waste material after the pressure roller 7 rolls the film. After adhesion, the machine can be stopped and the outermost layer of the sticky roller can be peeled off. At this time, there is a distance between the sticky roller and the pressure roller 7. The sticky roller can be slid to make the sticky roller contact with the pressure roller 7 again, and then the second screw 224 is tightened to fix the sticky roller.

[0035] As one of the embodiments, refer to Figure 1 As shown, when the device for rolling thin film protrusions of the present invention is used in a wrapping coating device, the present invention also includes a baffle 9 arranged in the vacuum chamber, and the baffle 9 is arranged between the evaporation boat 3 and the pressure roller 7 on the right side of the main roller 8, and is used to block the evaporation of the plating material onto the pressure roller 7 on the right side of the main roller 8, so as to prevent the evaporation of the plating material from affecting the use of the pressure roller 7 on the right side of the main roller 8.

[0036] As a second embodiment, refer to Figure 6 As shown, when the device for rolling convex points of a thin film of the present invention is applied to a suspension coating device, two main rollers 8 can be provided, and the evaporation boat 3 is provided below the two main rollers 8 and between the two main rollers 8 .

[0037] When the device for rolling protrusions of a film of the present invention rolls protrusions of a film, a pressure roller on the other side of the film will press against the film from the other side to form support for the film, thereby preventing the protrusions from puncturing the film during the rolling process. After rolling, the film is taken up by a winding roller, thereby preventing the protrusions from puncturing the film of an adjacent winding layer after the winding roller rolls up the film with the protrusions. In addition, the temperature in the vacuum chamber is high and the protrusions on the film are relatively soft, so the protrusions are rolled at this time with good rolling effect. The pressure roller is buffered, and when encountering a film with protrusions, the pressure roller can move back due to the presence of a spring, and the relative distance of the pressure roller with respect to the main roller is adjusted to adapt to protrusions of different heights, thereby preventing the protrusions from not being able to pass through the pressure roller and causing film tearing.

[0038] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A device for rolling convex points of a thin film, characterized in that: It includes a film winding and unwinding module, a main roller, a pressure roller, and an adjustment module arranged in a vacuum chamber; The film unwinding and winding module includes an unwinding roller and a winding roller, wherein the unwinding roller is used to unwind the film and the winding roller is used to receive the film after coating; the main roller and the pressure roller are both arranged between the unwinding roller and the winding roller; The main roller is arranged on one side of the film and abuts against the side of the film, and the pressing rollers are provided in plurality, and at least one of the plurality of pressing rollers corresponds to the abutment of the main roller on one side of the film and is arranged on the other side of the film, and is used to roll and press the convex points on the film after coating; Corresponding to the pressing roller disposed on the other side of the film, two adjustment modules are disposed in parallel at both ends of the pressing roller for adjusting the pressing roller; The adjustment module includes a slide rail, a slider, a spring and a limit block for limiting the spring. The slider is slidably installed on the slide rail, the spring is limited between the slider and the limit block, and the limit block is arranged at the end of the slide rail far from the slider. The two ends of the pressing roller are rotatably mounted on two parallel sliding blocks, so that when the pressing roller presses the convex point, the spring forms a buffer for the pressing roller; Other pressing rollers among the plurality of pressing rollers are arranged on both sides of the film, one side of which is in contact with the film and the other side is not in contact with the film, and are used to press the convex points on the film after coating; The distance between the pressing rollers on both sides of the film decreases along the film traveling direction.

2. A device for rolling convex points of a thin film as claimed in claim 1, characterized in that: One end of the spring is fixed on the sliding block, and the other end of the spring is fixed on the limiting block.

3. A device for rolling convex points of a thin film as claimed in claim 1, characterized in that: Along the film-moving direction of the coated film, the distance between the slider in each adjustment module and the corresponding limit block is reduced in sequence, so that the tension of the corresponding spring is increased in sequence.

4. A device for rolling convex points of a thin film as claimed in claim 1, characterized in that: The adjustment module also includes a first screw and a nut. One end of the first screw is fixed to the slider. After passing through the spring and the limit block in sequence, the other end is locked by the nut, so that the tightness of the spring can be adjusted by adjusting the distance of the slider on the first screw from the limit block.

5. The device for rolling convex points of a thin film as claimed in claim 1, characterized in that: The slider is also provided with a lug, and the lug is provided with a cleaning roller for cleaning the pressure roller; The cleaning roller is rotatably mounted on the supporting ear.

6. A device for rolling convex points of a thin film as claimed in claim 5, characterized in that: The support ear is provided with a sliding hole and a second screw rod, the cleaning roller is rotatably installed in the sliding hole and can slide along the sliding hole, so as to adjust the distance and position of the cleaning roller relative to the pressure roller; The second screw rod is screwed on the support ear and is used for locking the cleaning roller on the sliding hole.

7. A device for rolling convex points of a thin film as claimed in claim 1, characterized in that: Also included is an evaporation boat disposed in the vacuum chamber for coating the thin film, the evaporation boat being disposed directly below the main roller; The film passes around the left side, the lower side and the right side of the main roller in turn, so that the film is coated on the lower side of the main roller and then released from the right side of the main roller; Corresponding to the abutment between the right side of the main roller and the inner side of the film, the pressure rollers arranged on the other side of the film are all arranged on the right side of the main roller.

8. A device for rolling convex points of a thin film as claimed in claim 7, characterized in that: It also includes a baffle plate arranged in the vacuum chamber, which is arranged between the evaporation boat and the pressure roller on the right side of the main roller and is used to prevent the plating material from evaporating onto the pressure roller on the right side of the main roller.

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