Roll-to-roll laser imaging equipment

Abstract

The utility model discloses reel-to-reel laser imaging equipment, which comprises an unwinding mechanism, a winding mechanism, a first laser assembly, a second laser assembly and a reversing mechanism, the unwinding mechanism and the winding mechanism are arranged up and down, a flexible material is wound on the unwinding mechanism, the flexible material is wound on the winding mechanism through the reversing mechanism, and the first laser assembly and the second laser assembly are arranged on the winding mechanism. The section, between the unwinding mechanism and the reversing mechanism, of the flexible material is a first material section, the section, between the winding mechanism and the reversing mechanism, of the flexible material is a second material section, the first laser assembly is arranged on the upper side of the end, close to the unwinding mechanism, of the first material section, and the second laser assembly is arranged on the upper side of the end, close to the reversing mechanism, of the second material section. The utility model provides a roll-to-roll laser imaging device which prevents local high temperature of a flexible material and facilitates improvement of imaging precision.

Description

Technical Field

[0001] This utility model relates to the field of imaging equipment technology, and in particular to a roll-to-roll laser imaging device. Background Technology

[0002] Roll-to-roll laser imaging equipment is used for continuous processing of flexible materials. Existing roll-to-roll laser imaging equipment, such as the patent application number CN201820793801.1, includes a roll-type feeding mechanism, a roll-type take-up mechanism, and a laser galvanometer. The flexible material is output from the roll-type feeding mechanism, passes under the laser galvanometer, and is then wound onto the roll-type take-up mechanism. The laser galvanometer illuminates the upper side of the flexible material, imaging the pattern onto the upper side. This type of roll-to-roll laser imaging equipment can only image the upper side of the flexible material at a time. When encountering tasks where both the upper and lower sides of the flexible material need to be imaged, it is necessary to perform imaging twice, affecting imaging efficiency. Another example is the patent application number CN202320157846.0, which includes a first laser component and a second laser component symmetrically arranged vertically. The flexible material passes between the first laser component and the second laser component. The first laser component images the upper side of the flexible material, and the second laser component images the lower side of the flexible material, achieving simultaneous imaging of both sides of the flexible material. This imaging method is prone to causing excessively high local temperatures in the flexible material, leading to excessive deformation and affecting imaging accuracy. Utility Model Content

[0003] To address the shortcomings of existing roll-to-roll laser imaging devices, which suffer from localized high temperatures on the top and bottom sides of flexible materials during imaging and thus affect imaging accuracy, this invention proposes a roll-to-roll laser imaging device that prevents localized high temperatures in flexible materials and improves imaging accuracy.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A roll-to-roll laser imaging device includes an unwinding mechanism, a winding mechanism, a first laser component, a second laser component, and a reversing mechanism. The unwinding mechanism and the winding mechanism are arranged vertically. A flexible material is wound on the unwinding mechanism, and the flexible material is wound onto the winding mechanism via the reversing mechanism. The section of the flexible material between the unwinding mechanism and the reversing mechanism is a first material segment, and the section of the flexible material between the winding mechanism and the reversing mechanism is a second material segment. The first laser component is located on the upper side of the first material segment near the unwinding mechanism, and the second laser component is located on the upper side of the second material segment near the reversing mechanism.

[0006] With the above configuration, the first laser component and the second laser component are staggered. After the first laser component processes one side of the flexible material, the flexible material has time to cool and buffer. When the second laser component processes the other side of the flexible material, the temperature will not be too high, preventing the flexible material from undergoing large deformation due to excessive local temperature. This is beneficial to improving the imaging accuracy of the laser imaging equipment.

[0007] Furthermore, the laser imaging device also includes a cooling cylinder, an inlet pipe, an outlet pipe, and a cooling device. The cooling cylinder is positioned between the first laser component and the second laser component. A first support surface is provided on the upper outer surface of the cooling cylinder, which horizontally supports the lower side of the first material segment. A second support surface is provided on the lower inner surface of the cooling cylinder. The second material segment passes through the cooling cylinder, and the second support surface horizontally supports the lower side of the second material segment. A flow channel is provided inside the cooling cylinder. One end of the flow channel is connected to the output end of the cooling device through the inlet pipe, and the other end of the flow channel is connected to the input end of the cooling device through the outlet pipe. A cooling circuit is formed between the flow channel, the inlet pipe, the cooling device, and the outlet pipe, and a coolant is provided in the cooling circuit.

[0008] The above settings accelerate the cooling rate of flexible materials, further reduce their temperature, and decrease their deformation. In addition, they also help to further reduce the length of laser imaging equipment.

[0009] Furthermore, the flow channel extends spirally around the axis of the cooling cylinder within the cooling cylinder, with both ends of the flow channel located at the two ends of the cooling cylinder.

[0010] Furthermore, the cooling cylinder includes a top plate, side plates, and a bottom plate. The top plate has the aforementioned first support surface on its upper side, and the bottom plate has the aforementioned second support surface on its upper side. There are two side plates, arranged left and right and fixedly connected between the top plate and the bottom plate. The cross-section of the cooling cylinder is rectangular, and the side plates abut against the left and right sides of the flexible material.

[0011] The above settings enhance the stability of the second section of the flexible material, thereby improving imaging accuracy.

[0012] Furthermore, the laser imaging equipment also includes an insulation sleeve wrapped around the side panel.

[0013] The above settings slow down the rate at which the cold energy of the refrigerant in the cooling cylinder diffuses into the atmosphere through the side plates, maintaining the low temperature of the refrigerant and ensuring the cooling effect of the cooling cylinder.

[0014] Furthermore, the laser imaging device also includes a base and a first support. The first support and the cooling cylinder are both fixedly connected to the upper side of the base. The unwinding mechanism is configured to be rotatably connected to the first air shaft of the first support. The winding mechanism includes a second air shaft rotatably connected to the first support, and a motor that can drive the second air shaft.

[0015] Furthermore, the reversing mechanism includes a second support, a first reversing roller, and a second reversing roller disposed below the first reversing roller. The second support is fixedly connected to the upper side of the base. Both the first and second reversing rollers are rotatably connected to the second support. The flexible material output from the unwinding mechanism passes through the first and second reversing rollers and moves toward the winding mechanism. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a laser imaging device as an example.

[0017] Figure 2 This is a top view of the laser imaging device used in this embodiment.

[0018] Figure 3 for Figure 1 AA sectional view. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0020] like Figures 1 to 3 A roll-to-roll laser imaging device includes an unwinding mechanism 3, a winding mechanism 4, a first laser component 5, a second laser component 6, and a reversing mechanism 7. The unwinding mechanism 3 and the winding mechanism 4 are arranged vertically. A flexible material 8 is wound on the unwinding mechanism 3. The flexible material 8 is wound onto the winding mechanism 4 through the reversing mechanism 7. The section of the flexible material 8 between the unwinding mechanism 3 and the reversing mechanism 7 is a first material segment 9, and the section of the flexible material 8 between the winding mechanism 4 and the reversing mechanism 7 is a second material segment 10. The first laser component 5 is located on the upper side of the first material segment 9 near the unwinding mechanism 3, and the second laser component 6 is located on the upper side of the second material segment 10 near the reversing mechanism 7.

[0021] With the above settings, the first laser component 5 and the second laser component 6 are staggered. After the first laser component 5 processes one side of the flexible material 8, the flexible material 8 has time to cool and buffer. When the second laser component 6 processes the other side of the flexible material 8, the temperature will not be too high, preventing the flexible material 8 from undergoing large deformation due to excessive local temperature. This is beneficial to improving the imaging accuracy of the laser imaging equipment.

[0022] Specifically, the structures of the unwinding mechanism 3 and the winding mechanism 4 can refer to existing roll-to-roll laser imaging equipment. The unwinding mechanism 3 is used to install the roll-shaped flexible material 8, and the winding mechanism 4 is used to install the take-up cylinder. After the flexible material 8 is output from the unwinding mechanism 3, it first extends forward, and after passing through the reversing mechanism 7, it turns around and connects to the take-up cylinder of the winding mechanism 4. After the winding mechanism 4 drives the take-up cylinder to rotate, the take-up cylinder winds the flexible material 8, pulling the flexible material 8 forward continuously. The flexible material 8 is continuously output from the unwinding mechanism 3. In this application, the flexible material 8 is divided into a first material segment 9 and a second material segment 10 with upper and lower layers between the unwinding mechanism 3 and the winding mechanism 4 through the reversing mechanism 7, which is beneficial to reducing the overall length of the laser imaging equipment and saving factory space. The first laser component 5 and the second laser component 6 in this application can refer to existing roll-to-roll laser imaging equipment and can output laser downwards to reach the flexible material. The imaging effect and specific structural principles will not be elaborated here. In this application, the first laser component 5 and the second laser component 6 are staggered. Specifically, the first laser component 5 is located on the upper side of the first material section 9 near the unwinding mechanism 3. After the flexible material 8 is output from the unwinding mechanism 3, the first laser component 5 can immediately image the upper side of the flexible material 8. After the upper side of the flexible material 8 is imaged, the temperature is relatively high, and it continues to move forward. When the flexible material 8 passes through the reversing mechanism 7, the upper and lower sides of the flexible material 8 are reversed. When the flexible material 8 approaches the second laser component 6, the temperature of the flexible material 8 has dropped significantly compared to the temperature when it left the first laser component 5. When the second laser component 6 emits a laser downward to image the other side of the flexible material 8, the temperature of the flexible material 8 will not be too high, preventing the flexible material 8 from becoming too hot and causing large deformation. The second laser component 6 has higher accuracy when imaging the flexible material 8.

[0023] As one implementation method, the laser imaging device also includes a cooling cylinder 11, an inlet pipe 12, an outlet pipe 13, and a cooling device. The cooling cylinder 11 is disposed between the first laser component 5 and the second laser component 6. A first support surface 14 is provided on the upper outer surface of the cooling cylinder 11, which horizontally supports the lower side of the first material segment 9. A second support surface 15 is provided on the lower inner surface of the cooling cylinder 11. The second material segment 10 passes through the cooling cylinder 11, and the second support surface 15 horizontally supports the lower side of the second material segment 10. A flow channel 20 is provided inside the cooling cylinder 11. One end of the flow channel is connected to the output end of the cooling device through the inlet pipe 12, and the other end of the flow channel is connected to the input end of the cooling device through the outlet pipe 13. A cooling circuit is formed between the flow channel, the inlet pipe 12, the cooling device, and the outlet pipe 13, and a coolant is provided in the cooling circuit.

[0024] The above settings accelerate the cooling rate of the flexible material 8, further reduce the temperature of the flexible material 8, reduce the deformation of the flexible material 8, and also help to further reduce the length of the laser imaging device.

[0025] The cooling cylinder 11 of this application has a rectangular cross-section. The axis of the cooling cylinder 11 is parallel to the first material section 9 and the second material section 10. A flow channel is provided inside the cooling cylinder 11, which passes under the first support surface 14 and the second support surface 15. The refrigerant can be a glycol solution. The cooling device specifically includes a radiator, a fan, and a pump. The pump drives the refrigerant to circulate in the cooling circuit. When the refrigerant moves to the radiator, the fan blows air onto the radiator to cool the refrigerant. The refrigerant enters the flow channel through the liquid inlet pipe 12. When the refrigerant passes the first support surface 14... When in contact with the second support surface 15, the heat of the flexible material 8 is absorbed to reduce the temperature of the flexible material 8. The coolant returns to the radiator through the outlet pipe 13 and enters the next cycle. The first support surface 14 of this application is specifically set in the middle of the first material section 9. The flexible material 8 passing through the first laser component 5 can be cooled immediately on the first support surface 14. The second support surface 15 is specifically set in the middle of the second material section 10. The flexible material 8 passing through the second laser component 6 can be cooled immediately on the second support surface 15, so that the flexible material 8 is not easy to stick when it is wound around the winding mechanism 4.

[0026] As one implementation method, the flow channel extends spirally around the axis of the cooling cylinder 11 in the cooling cylinder 11, with the two ends of the flow channel located at the two ends of the cooling cylinder 11 respectively.

[0027] As one implementation, the cooling cylinder 11 includes a top plate 111, side plates 112 and a bottom plate 113. The top plate 111 is provided with the aforementioned first support surface 14, and the bottom plate 113 is provided with the aforementioned second support surface 15. There are two side plates 112, which are arranged left and right and fixedly connected between the top plate 111 and the bottom plate 113. The cross-section of the cooling cylinder 11 is rectangular, and the side plates 112 abut against the left and right sides of the flexible material 8.

[0028] The above settings enhance the stability of the second section 10 of the flexible material 8, thereby improving imaging accuracy.

[0029] Specifically, the flexible material 8 on the lower side of the first laser component 5 is close to the unwinding mechanism 3, so the flexible material 8 will not be tilted or sway left or right. As the flexible material 8 is conveyed forward, it may have a large left or right offset. By setting the side plate 112, the side plate 112 abuts against the left and right sides of the flexible material 8, which plays a positioning role and prevents the second segment 10 of the flexible material 8 from having a large offset on the lower side of the second laser component 6, so as to improve the imaging accuracy of the second segment 10 of the flexible material 8 by the second laser component 6.

[0030] As one implementation, the laser imaging device also includes an insulation sleeve 16 wrapped around the side plate 112.

[0031] The above settings slow down the rate at which the cold energy of the refrigerant in the cooling cylinder 11 diffuses into the atmosphere through the side plate 112, keeping the refrigerant at a low temperature to ensure the cooling effect of the cooling cylinder 11.

[0032] As one implementation, the laser imaging device also includes a base 17 and a first support 18. The first support 18 and the cooling cylinder 11 are both fixedly connected to the upper side of the base 17. The unwinding mechanism 3 is configured to be rotatably connected to the first air shaft of the first support 18. The winding mechanism 4 includes a second air shaft 41 rotatably connected to the first support 18, and a motor 42 that can drive the second air shaft 41.

[0033] Specifically, the base plate 113 is a rectangular plate structure, which is placed flat on the ground. The first bracket 18 is used to support the first air shaft and the second air shaft 41. The structure of the first air shaft and the second air shaft 41 is similar to that of existing air shafts and will not be described again. The flexible material 8 to be imaged is initially wound on the roll. After the roll is put on the first air shaft, it is locked. The take-up cylinder is locked on the second air shaft 41. The flexible material 8 is connected to the take-up cylinder. After the motor 42 drives the second air shaft 41 to rotate, the take-up cylinder winds the flexible material 8 to drive the flexible material 8 forward.

[0034] As one implementation, the reversing mechanism 7 includes a second support 71, a first reversing roller 72, and a second reversing roller 73 disposed below the first reversing roller 72. The second support 71 is fixedly connected to the upper side of the base 17. The first reversing roller 72 and the second reversing roller 73 are both rotatably connected to the second support 71. The flexible material 8 output from the unwinding mechanism 3 passes through the first reversing roller 72 and the second reversing roller 73 in turn and moves toward the winding mechanism 4.

[0035] Specifically, the second support 71 is used to support the first reversing roller 72 and the second reversing roller 73. The axis of the first reversing roller 72 is basically at the same height as the axis of the first air expansion shaft, and the axis of the second reversing roller 73 is basically at the same height as the axis of the second air expansion shaft 41, so that the first material segment 9 and the second material segment 10 of the flexible material 8 are horizontal. The first reversing roller 72 and the second reversing roller 73 are both rotatably connected to the second support 71 to reduce the forward resistance of the flexible material 8.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A roll-to-roll laser imaging device, characterized in that, The device includes an unwinding mechanism, a winding mechanism, a first laser component, a second laser component, and a reversing mechanism. The unwinding mechanism and the winding mechanism are arranged vertically. A flexible material is wound around the unwinding mechanism. The flexible material is wound onto the winding mechanism via the reversing mechanism. The section of the flexible material between the unwinding mechanism and the reversing mechanism is a first material segment, and the section of the flexible material between the winding mechanism and the reversing mechanism is a second material segment. The first laser component is located on the upper side of the first material segment near the unwinding mechanism, and the second laser component is located on the upper side of the second material segment near the reversing mechanism.

2. The roll-to-roll laser imaging device according to claim 1, characterized in that, The laser imaging device further includes a cooling cylinder, an inlet pipe, an outlet pipe, and a cooling device. The cooling cylinder is disposed between the first laser component and the second laser component. A first support surface is provided on the upper outer surface of the cooling cylinder, which horizontally supports the lower side of the first material segment. A second support surface is provided on the lower inner surface of the cooling cylinder. The second material segment passes through the cooling cylinder, and the second support surface horizontally supports the lower side of the second material segment. A flow channel is provided inside the cooling cylinder. One end of the flow channel is connected to the output end of the cooling device through the inlet pipe, and the other end of the flow channel is connected to the input end of the cooling device through the outlet pipe. A cooling circuit is formed between the flow channel, the inlet pipe, the cooling device, and the outlet pipe. A coolant is provided in the cooling circuit.

3. The roll-to-roll laser imaging device according to claim 2, characterized in that, The flow channel extends spirally around the axis of the cooling cylinder within the cooling cylinder, with its two ends located at the two ends of the cooling cylinder, respectively.

4. A roll-to-roll laser imaging device according to claim 2, characterized in that, The cooling cylinder includes a top plate, side plates, and a bottom plate. The top plate has the aforementioned first support surface on its upper side, and the bottom plate has the aforementioned second support surface on its upper side. There are two side plates, arranged left and right and fixedly connected between the top plate and the bottom plate. The cooling cylinder has a rectangular cross-section, and the side plates abut against the left and right sides of the flexible material.

5. A roll-to-roll laser imaging device according to claim 4, characterized in that, The laser imaging device also includes an insulation sleeve wrapped around the side panel.

6. The roll-to-roll laser imaging device according to claim 1, characterized in that, The laser imaging device also includes a base and a first support. The first support and the cooling cylinder are both fixedly connected to the upper side of the base. The unwinding mechanism is configured to be rotatably connected to the first support on a first air shaft. The winding mechanism includes a second air shaft rotatably connected to the first support and a motor that can drive the second air shaft.

7. A roll-to-roll laser imaging device according to claim 6, characterized in that, The reversing mechanism includes a second bracket, a first reversing roller, and a second reversing roller disposed below the first reversing roller. The second bracket is fixedly connected to the upper side of the base. The first reversing roller and the second reversing roller are both rotatably connected to the second bracket. The flexible material output from the unwinding mechanism passes through the first reversing roller and the second reversing roller in turn and moves toward the winding mechanism.

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