A winding-off mechanism for improving the unwinding efficiency of a roll-to-roll device

Abstract

The utility model relates to a kind of unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment, including unwinding frame, unwinding frame is provided with the unwinding drum with initiative unwinding function, buffer device, floating device, deviation rectifying device and cleaning device, diaphragm from unwinding drum, in turn after unwinding buffer device, unwinding floating device, deviation rectifying device and cleaning device enter the upper of exposure platform;The floating device is used to adjust the diaphragm tension between buffer device and deviation rectifying device, and the buffer device is active buffer device, and the diaphragm length of active adjustment buffer can be adjusted.The utility model aims at providing a kind of unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment, by active buffer device cooperation gas expansion shaft rotation unwinding, so it can greatly improve the speed of unwinding, and then improve the overall efficiency of roll-to-roll exposure equipment.

Description

Technical Field

[0001] This utility model relates to the field of exposure equipment, and in particular to an unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment. Background Technology

[0002] Flexible substrates (films) are printed with patterns using photolithography. With the development of technology, most film photolithography is now done in roll-to-roll mode, that is, the film is unwound by an unwinding mechanism, and after being exposed by an exposure mechanism, it is wound up by a rewinding mechanism.

[0003] However, existing unwinding methods rely on the rotation of an air shaft to unwind the unwinding drum. However, the rotation speed of the air shaft is not high, which limits the unwinding speed and thus affects the overall exposure efficiency of the roll-to-roll equipment. Utility Model Content

[0004] The purpose of this invention is to provide an unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment. By using an active buffer device in conjunction with an air shaft for rotating unwinding, the unwinding speed can be greatly increased, thereby improving the overall efficiency of the roll-to-roll exposure equipment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment, comprising an unwinding frame, an unwinding drum with active unwinding function, a buffer device, a floating device, a web-correcting device, and a cleaning device. The film enters the upper part of the exposure platform after passing through the unwinding buffer device, the unwinding floating device, the web-correcting device, and the cleaning device in sequence from the unwinding drum; the floating device is used to adjust the film tension between the buffer device and the web-correcting device; the buffer device is an active buffer device that can actively adjust the length of the buffered film.

[0006] Preferably, the buffer device includes a fixed buffer guide roller and a movable buffer seat. The movable buffer seat is equipped with a buffer drive structure, and a movable buffer guide roller is provided on the movable buffer seat. The number of both the movable buffer guide roller and the fixed buffer guide roller is greater than two.

[0007] Preferably, the buffer movable seat cooperates with the buffer movable slide rail provided on the unwinding frame, and the buffer drive structure includes a buffer drive motor and a buffer drive screw provided on the unwinding frame, with the buffer movable seat sleeved on the buffer drive screw.

[0008] Preferably, the floating device includes a floating cylinder mounted on the unwinding frame, the floating cylinder being connected to a floating slide, and a floating guide roller being mounted on the floating slide.

[0009] Preferably, the unwinding frame is provided with a floating slide rail that cooperates with the floating slide block, and the floating slide rail and the floating slide block are provided with a magnetic scale and a magnetic scale reading head that cooperate with each other.

[0010] The technical effects of this utility model are as follows: By using an active buffer device in conjunction with an air shaft for rotating unwinding, and by using a floating device to dynamically adjust the tension while reducing the buffer amount, the unwinding speed can be greatly improved, thereby increasing the overall efficiency of the roll-to-roll exposure equipment. The buffer device uses a motor and a lead screw to adjust the distance between the fixed and movable buffer guide rollers, thereby achieving active adjustment of the buffer amount. The overall operation is convenient, easy to implement, and the speed of buffer amount adjustment can be controlled. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device.

[0012] Figure 2 This is a three-dimensional schematic diagram of an unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device.

[0013] Figure 3 This is a schematic diagram of a cache device.

[0014] Figure 4 This is a three-dimensional schematic diagram of the floating device.

[0015] The text labels in the diagram represent: 21. Unwinding frame; 22. Unwinding drum; 23. Buffer device; 24. Floating device; 25. Correction device; 26. Cleaning device; 31. Buffer drive motor; 32. Buffer drive screw; 33. Buffer movable seat; 34. Buffer movable slide rail; 35. Buffer fixed guide roller; 36. Buffer movable guide roller; 37. Floating cylinder; 38. Floating slide block; 39. Floating guide roller; 40. Floating slide rail. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0017] like Figure 1As shown, the specific structure of this utility model is as follows: an unwinding mechanism for improving the unwinding efficiency of roll-to-roll equipment, including an unwinding frame 21, on which an unwinding drum 22 with active unwinding function, a buffer device 23, a floating device 24, a correction device 25, and a cleaning device 26 are arranged. The film enters the upper part of the exposure platform after passing through the unwinding buffer device 23, the unwinding floating device 24, the correction device 25, and the cleaning device 26 in sequence from the unwinding drum 22. The floating device 24 is used to adjust the film tension between the buffer device 23 and the correction device 25. The buffer device 23 is an active buffer device that can actively adjust the length of the buffered film.

[0018] The specific operating steps of this utility model are as follows: In the initial state, the buffer device 23 is in the maximum buffer state. When unwinding is required, the buffer device 23 actively reduces the buffer to the minimum position. During this process, the floating device 24 contracts, adjusting the pressure of the diaphragm, thereby increasing the diaphragm length between the buffer device 23 and the correction device 25. After the buffer device 23 has completed its active reduction, the floating device 24 returns to its original position. In this way, all the diaphragms stored in the buffer device are unwound. In the specific operation process, the buffer device 23 can be designed... The amount of film in the buffer is exactly the amount required for one exposure. Thus, unwinding can be done through the buffer device 23 without the need for unwinding through the unwinding drum 22. After unwinding through the buffer device 23, unwinding is performed through the unwinding drum 22. At the same time, the buffer amount is actively increased by the active buffer device 23 to buffer the film unwound from the unwinding drum 22 onto the buffer device 23. The speed at which the buffer device 23 actively reduces the buffer amount is greater than the speed at which it actively increases the buffer amount. This ensures that the unwinding speed when used with the exposure equipment is faster than the unwinding speed of the unwinding drum 22 rotating shaft alone.

[0019] like Figure 2-3 As shown, the buffer device 22 includes a fixed buffer guide roller 35 and a movable buffer seat 33. The movable buffer seat 33 is equipped with a buffer drive structure, and a movable buffer guide roller 36 is provided on the movable buffer seat 33. The number of both the movable buffer guide roller 36 and the fixed buffer guide roller 35 is greater than two. The movable buffer seat 33 cooperates with a movable buffer slide rail 34 provided on the unwinding frame 21. The buffer drive structure includes a buffer drive motor 31 and a buffer drive screw 32 provided on the unwinding frame 21. The movable buffer seat 33 is sleeved on the buffer drive screw 32.

[0020] The specific operation of the buffer device 23 is as follows: During unwinding, the buffer drive motor 31 drives the buffer drive screw 32 to rotate, thereby causing the buffer movable seat 33 to move towards the buffer fixed guide roller 35, thus reducing the distance between the buffer movable guide roller 36 and the buffer fixed guide roller 35, thereby realizing the operation of reducing the buffer unwinding; after the unwinding of the buffer device is completed, it needs to be buffered again. During the second buffering, the buffer drive motor 31 drives the buffer drive screw 32 to rotate, thereby causing the buffer movable seat 33 to move away from the buffer fixed guide roller 35, thereby increasing the distance between the buffer movable guide roller 36 and the buffer fixed guide roller 35, thus completing the buffering of the film. The speed of the buffer drive motor 31 during unwinding is greater than the speed of the buffer drive motor 31 during buffering.

[0021] like Figure 4 As shown, the floating device 24 includes a floating cylinder 37 mounted on the unwinding frame 21. The floating cylinder 37 is connected to a floating slide 38. A floating guide roller 39 is mounted on the floating slide 38. A floating slide rail 40 is mounted on the unwinding frame 21 to cooperate with the floating slide 38. A magnetic scale and a magnetic scale reading head are mounted on the floating slide rail 40 and the floating slide 38 to cooperate with each other.

[0022] When the floating device 24 is in operation, the floating cylinder 37 drives the floating slide 38 to move on the floating slide rail 40, which in turn drives the floating guide roller 39 to move. The floating guide roller 39 then adjusts the diaphragm length between the buffer device 23 and the correction device 25 and dynamically adjusts the diaphragm tension. During the adjustment process, the movement range of the floating guide roller 39 can be calculated by the magnetic scale and magnetic scale reading head to avoid over-adjustment.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device, comprising an unwinding frame, characterized in that, The unwinding frame is equipped with an unwinding drum with active unwinding function, a buffer device, a floating device, a web-correcting device, and a cleaning device. The film enters the top of the exposure platform after passing through the unwinding buffer device, the unwinding floating device, the web-correcting device, and the cleaning device in sequence from the unwinding drum. The floating device is used to adjust the film tension between the buffer device and the web-correcting device. The buffer device is an active buffer device that can actively adjust the length of the buffered film.

2. The unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device according to claim 1, characterized in that, The buffer device includes a fixed buffer guide roller and a movable buffer seat. The movable buffer seat is equipped with a buffer drive structure, and a movable buffer guide roller is provided on the movable buffer seat. The number of both the movable buffer guide roller and the fixed buffer guide roller is greater than two.

3. The unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device according to claim 2, characterized in that, The buffer movable seat cooperates with the buffer movable slide rail provided on the unwinding frame. The buffer drive structure includes a buffer drive motor and a buffer drive screw provided on the unwinding frame, and the buffer movable seat is sleeved on the buffer drive screw.

4. The unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device according to claim 1, characterized in that, The floating device includes a floating cylinder mounted on the unwinding frame, the floating cylinder being connected to a floating slide, and a floating guide roller mounted on the floating slide.

5. The unwinding mechanism for improving the unwinding efficiency of a roll-to-roll device according to claim 4, characterized in that, The unwinding frame is equipped with a floating slide rail that cooperates with the floating slide block, and the floating slide rail and the floating slide block are equipped with a magnetic scale and a magnetic scale reading head that cooperate with each other.

Images