reelers

Abstract

The utility model discloses a kind of winding and unwinding machine, including drive roller group, the drive roller group is used to drive winding material movement, the winding and unwinding machine further includes adjusting tension roller group, the drive roller group includes first roller group and second roller group, the first roller group and second roller group are sequentially arranged, the adjusting tension roller group is arranged between the first roller group and the second roller group, and with the part upper surface of winding material closely, the moving direction of winding material is from the first roller group to the second roller group;The adjusting tension roller group includes gravity wheel and monitoring mechanism, the monitoring mechanism is arranged in the two sides of gravity wheel moving direction, the position of gravity wheel can be monitored, and according to monitoring result, the winding speed of the first drive roller and the second drive roller is separately adjusted.The utility model has the advantages of high efficiency and high yield production of mask plate.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, specifically to a winding and unwinding machine. Background Technology

[0002] The production process of ultra-thin precision metal photomasks involves using a single sheet of material without any cutouts. The material moves within a winding mechanism, and the etching process is completed during this movement. To improve production efficiency, multiple ultra-thin precision metal photomasks are produced simultaneously. The winding mechanism etches the photomask along its moving direction. Multiple photomasks extend in the same direction and are parallel to the moving direction. Adjacent photomasks are separated by cutout strips.

[0003] However, the presence of the perforated strips means that the material is not a whole. During the production process, the parallel FMMs (ultra-thin precision metal masks) are prone to misalignment, causing bending and deformation, which makes it impossible to achieve high-yield production. Utility Model Content

[0004] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides a winding and unwinding machine, which has the advantages of high efficiency and high yield in mask production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A winding and unwinding machine includes a drive roller assembly for driving the movement of a roll material. The machine also includes an adjustable tension roller assembly. The drive roller assembly comprises a first roller assembly and a second roller assembly, arranged sequentially. The adjustable tension roller assembly is positioned between the first and second roller assemblies and is in close contact with a portion of the upper surface of the roll material. The roll material moves from the first roller assembly to the second roller assembly. The adjustable tension roller assembly includes a gravity wheel and a monitoring mechanism. The monitoring mechanism is positioned on both sides of the gravity wheel's movement direction and is capable of monitoring the position of the gravity wheel and adjusting the winding speed of the first and second drive rollers independently based on the monitoring results.

[0006] The gravity rollers are positioned on the roll material by gravity and compress it downwards to maintain a taut state. By continuously applying force to the roll material, it remains taut as it passes through the first roller group, the second roller group, and the tension adjustment roller group, thus improving production efficiency. The drive roller group is used to move the roll material, specifically feeding it into or out of the printing device. The first roller group is located upstream of the second roller group. The first roller group is responsible for feeding the roll material into the tension adjustment roller group, and the second roller group is responsible for feeding the roll material out of the tension adjustment roller group. By adjusting the tension adjustment roller group, the tension of the roll material is adjusted, thereby keeping the roll material taut during processing and avoiding product defects such as creases and deformation.

[0007] Optionally, the gravity wheel can change the roll length between the first roller group and the second roller group by moving in the height direction; the adjusting tension roller group further includes a limiting mechanism, which is disposed at both ends of the movement path of the gravity wheel, and the limiting mechanism is used to limit the gravity wheel to be within a set range.

[0008] The limiting mechanism is used to limit the movement path of the gravity wheel. By setting the limiting mechanism at both ends of the gravity wheel, the gravity wheel is prevented from exceeding the range and affecting the overall operation stability of the winding and unwinding machine. This has the advantage of improving operational stability and safety.

[0009] Optionally, the monitoring mechanism includes a first detection group, a second detection group, and a fixed guide rail. The first detection group and the second detection group are detachably fixed on the fixed guide rail. The first detection group is located at both ends of the movement path of the gravity wheel and is used to adjust the winding speed of the first drive roller or the second drive roller when the gravity wheel is detected passing by. The second detection group is located on both sides of the first detection group and is used to stop the winding of the first drive roller or the second drive roller when the gravity wheel is detected.

[0010] The first detection group is positioned between the second detection group. The first detection group serves as the first-level limit to ensure that the gravity wheel will not be unable to stop due to excessive speed when it approaches the fixed guide rail. The second detection group serves as the second-level limit to prevent the gravity wheel from moving further when it is about to leave the fixed guide rail, thus ensuring the safety of the winding and unwinding machine during operation.

[0011] Optionally, the gravity wheel is initially set at a set height. When the winding speed of the first roller group is greater than that of the second roller group, the gravity wheel descends, increasing the length of the roll material between the first and second roller groups. When the first detection group detects the gravity wheel, the winding speed of the first roller group is reduced. When the second detection group detects the gravity wheel, the first roller group stops rotating. When the winding speed of the first roller group is less than that of the second roller group, the gravity wheel rises, decreasing the length of the roll material between the first and second roller groups. When the first detection group detects the gravity wheel, the winding speed of the second roller group is reduced. When the second detection group detects the gravity wheel, the second roller group stops rotating.

[0012] In actual operation, the first and second detection groups provide four detection points. The two inner detection points belong to the first detection group. When the gravity wheel passes by, it can determine the speed difference between the first and second roller groups based on the height relationship between the trigger point and the initial height of the gravity wheel. Based on the speed difference, it slows down the roller group with the faster winding speed, thereby slowing down the movement speed of the gravity wheel and keeping it sliding within the fixed guide rail, ensuring operational safety. The two outer detection points belong to the second detection group. When the gravity wheel passes by, it can determine the speed difference between the first and second roller groups based on the height relationship between the trigger point and the initial height of the gravity wheel. Based on the speed difference, it controls the roller group with the faster winding speed to stop winding, preventing the gravity wheel from slipping off the fixed guide rail. This achieves automatic stopping and automatic control, with the advantages of high safety and accurate control.

[0013] Optionally, the diameter of the gravity wheel is greater than the diameter of the rollers in the first roller group or the diameter of the rollers in the second roller group.

[0014] The diameter of the gravity wheel determines the diameter of the arc formed by the coil under gravity. If the arc diameter is too small, the coil will turn too fast, causing deformation. Setting the diameter of the gravity wheel to the largest diameter in the winding and unwinding machine can reduce the probability of deformation and improve the production yield.

[0015] Optionally, the distance between the first roller group and the second roller group is greater than or equal to the diameter of the gravity wheel.

[0016] The spacing between the first roller group and the second roller group is large enough to allow the roll material entering the gravity wheel from the first roller group and entering the second roller group from the gravity wheel to be close to the vertical direction, which has the advantages of improving the yield of the roll material and preventing the roll material from deforming.

[0017] Optionally, the first roller group includes a first drive roller that rotates about a rotation axis of the first drive roller, and the second roller group includes a second drive roller that rotates about a rotation axis of the second drive roller, the first drive roller and the second drive roller being used to drive the roll material to move; the first roller group further includes at least one first conveyor roller, the top of an adjacent first drive roller being flush with the first conveyor roller; and / or, the second roller group further includes at least one second conveyor roller, the top of an adjacent second drive roller being flush with the second conveyor roller.

[0018] The first roller group may include, but is not limited to, the first drive roller, and the second roller group may include, but is not limited to, the second drive roller. The first and second drive rollers are in close contact with the lower surface of the roll material. The rotation of the first and second drive rollers drives the roll material to move. Since the drive rollers that provide power to the roll material are located on both sides of the gravity wheel, they have the advantage of uniform force distribution, reducing the possibility of roll material breakage. Conveyor rollers may be installed in the first and second roller groups. The conveyor rollers are used in conjunction with the drive rollers to move the roll material horizontally within the first or second roller group and provide support, preventing the roll material from bending within the roller group and improving the roll material yield.

[0019] Optionally, the number of first conveyor rollers is multiple, and the tops of the multiple first conveyor rollers are flush; and / or, the number of second conveyor rollers is multiple, and the tops of the multiple second conveyor rollers are flush.

[0020] Having the tops of multiple conveyor rollers flush allows the roll material to remain horizontal as it moves between the multiple conveyor rollers and drive rollers, reducing the likelihood of deformation during movement and improving production yield.

[0021] Optionally, the winding and unwinding machine further includes a winding shaft and a guiding mechanism. The winding shaft is located on the side of the drive roller group away from the adjusting tension roller group and is used to wind out or wind in the roll material. The guiding mechanism is located on the side of the drive roller group close to the winding shaft and is used to control the direction in which the roll material enters the drive roller group.

[0022] The roll spool is used to hold unprocessed or processed rolls of material, while the guide mechanism is used to control the direction of the rolls, ensuring the correctness of the roll movement direction and improving product yield.

[0023] Optionally, the winding and unwinding machine further includes a tension sensing wheel, which is disposed in the first roller group or the second roller group and is used to detect the tension of the roll material.

[0024] Tension sensing wheels can detect the tension received by the roll material during movement, preventing excessive tension from causing breakage and improving product yield.

[0025] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a structural block diagram of a winding and unwinding machine according to the present invention.

[0027] Figure 2 This is a schematic diagram of a winding and unwinding machine according to the present invention.

[0028] Figure 3 This is a schematic diagram of another structure of the winding and unwinding machine of this utility model.

[0029] Figure 4 This is a schematic diagram of the monitoring mechanism of a winding and unwinding machine according to the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Drive roller group; 11. First roller group; 111. First drive roller; 112. First conveyor roller; 12. Second roller group; 121. Second drive roller; 122. Second conveyor roller; 2. Adjustable tension roller group; 21. Gravity wheel; 22. Limiting mechanism; 23. Monitoring mechanism; 231. First detection group; 232. Second detection group; 233. Fixed guide rail; 3. Roll shaft; 4. Guiding mechanism; 5. Tension sensing wheel. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0032] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0033] The production process of ultra-thin precision metal photomasks involves using a single sheet of material without any cutouts. The material moves within a winding mechanism, and the etching process is completed during this movement. To improve production efficiency, multiple ultra-thin precision metal photomasks are produced simultaneously. The winding mechanism etches the photomask along its moving direction. Multiple photomasks extend in the same direction and are parallel to the moving direction. Adjacent photomasks are separated by cutout strips.

[0034] However, the presence of the perforated strips means that the material is not a whole. During the production process, the parallel FMMs (ultra-thin precision metal masks) are prone to misalignment, causing bending and deformation, which makes it impossible to achieve high-yield production.

[0035] like Figure 1 and Figure 2 As shown, this application proposes a winding and unwinding machine, including a drive roller group 1 for driving the movement of the roll material. The winding and unwinding machine also includes an adjusting tension roller group 2. The drive roller group 1 includes a first roller group 11 and a second roller group 12, which are arranged sequentially. The adjusting tension roller group 2 is arranged between the first roller group 11 and the second roller group 12 and is in close contact with a portion of the upper surface of the roll material. The movement direction of the roll material is from the first roller group 11 to the second roller group 12. The adjusting tension roller group 2 includes a gravity wheel 21 and a monitoring mechanism 23. The monitoring mechanism 23 is arranged on both sides of the movement direction of the gravity wheel 21 and can monitor the position of the gravity wheel 21 and adjust the winding speed of the first drive roller 111 and the second drive roller 121 separately according to the monitoring results.

[0036] The drive roller group 1 is used to drive the roll material to move, specifically to feed the roll material into or out of the printing device. The first roller group 11 is located upstream of the second roller group 12. The first roller group 11 is responsible for feeding the roll material into the tension adjustment roller group 2, and the second roller group 12 is responsible for feeding the roll material out of the tension adjustment roller group 2. By adjusting the tension adjustment roller group 2, the tightness of the roll material can be adjusted, thereby keeping the roll material taut during processing and avoiding product defects such as folding and deformation.

[0037] The gravity wheel 21 can change the length of the roll material between the first roller group 11 and the second roller group 12 by moving in the height direction; the adjusting tension roller group 2 also includes a limiting mechanism 22, which is disposed at both ends of the movement path of the gravity wheel 21. The limiting mechanism 22 is used to limit the position of the gravity wheel 21 and make the gravity wheel 21 stay within a set range.

[0038] The limiting mechanism 22 is used to limit the movement path of the gravity wheel 21. By setting the limiting mechanism 22 at both ends of the gravity wheel 21, the gravity wheel 21 is prevented from exceeding the range and affecting the overall operation stability of the winding and unwinding machine. This has the advantage of improving operation stability and safety.

[0039] like Figure 4 As shown, the monitoring mechanism includes a first detection group, a second detection group, and a fixed guide rail. The first detection group and the second detection group are detachably fixed on the fixed guide rail. The first detection group is located at both ends of the movement path of the gravity wheel 21 and is used to adjust the rolling speed of the first drive roller 111 or the second drive roller 121 when the gravity wheel 21 is detected to pass by. The second detection group is located on both sides of the first detection group and is used to stop the rolling of the first drive roller 111 or the second drive roller 121 when the gravity wheel 21 is detected.

[0040] The first detection group is set between the second detection group. The first detection group serves as the first-level limit to ensure that the gravity wheel 21 will not be unable to stop due to excessive speed when it approaches the fixed guide rail. The second detection group serves as the second-level limit to prevent the gravity wheel 21 from moving further when it is about to leave the fixed guide rail, thus ensuring the safety of the winding and unwinding machine during operation.

[0041] The gravity wheel 21 is initially set at a set height. When the winding speed of the first roller group 11 is greater than the winding speed of the second roller group 12, the gravity wheel 21 descends, increasing the length of the roll between the first roller group 11 and the second roller group 12. When the first detection group detects the gravity wheel 21, the winding speed of the first roller group 11 is reduced. When the second detection group detects the gravity wheel 21, the first roller group 11 stops rotating. When the winding speed of the first roller group 11 is less than the winding speed of the second roller group 12, the gravity wheel 21 rises, decreasing the length of the roll between the first roller group 11 and the second roller group 12. When the first detection group detects the gravity wheel 21, the winding speed of the second roller group 12 is reduced. When the second detection group detects the gravity wheel 21, the second roller group 12 stops rotating.

[0042] In actual operation, the first and second detection groups can provide four detection points. The two inner detection points are the first detection group. When the gravity wheel 21 passes by, it can determine the speed difference between the first roller group 11 and the second roller group 12 based on the height relationship between the trigger point and the initial height of the gravity wheel 21. Based on the speed difference, it slows down the roller group with the faster winding speed, thereby slowing down the movement speed of the gravity wheel 21 and keeping it sliding within the range of the fixed guide rail, ensuring operational safety. The two outer detection points are the second detection group. When the gravity wheel 21 passes by, it can determine the speed difference between the first roller group 11 and the second roller group 12 based on the height relationship between the starting point and the initial height of the gravity wheel 21. Based on the speed difference, it controls the roller group with the faster winding speed to stop winding, preventing the gravity wheel 21 from sliding off the fixed guide rail. This achieves automatic stopping and automatic control, with the advantages of high safety and accurate control.

[0043] The diameter of the gravity wheel 21 is greater than the diameter of the rollers of the first roller group 11 or the diameter of the rollers of the second roller group 12.

[0044] The diameter of the gravity wheel 21 determines the diameter of the arc formed by the coil under the action of gravity. If the arc diameter is too small, the coil will turn too fast, resulting in deformation. Setting the diameter of the gravity wheel 21 to the largest diameter in the winding and unwinding machine can reduce the probability of deformation and improve the production yield.

[0045] The distance between the first roller group 11 and the second roller group 12 is greater than or equal to the diameter of the gravity wheel 21.

[0046] The spacing between the first roller group 11 and the second roller group 12 is large enough to allow the roll material entering the gravity wheel 21 from the first roller group 11 and entering the second roller group 12 from the gravity wheel 21 to be close to the vertical direction, which has the advantages of improving the yield of the roll material and preventing the roll material from deforming.

[0047] like Figure 2 and Figure 3 As shown, the first roller group 11 includes a first drive roller 111, which rotates about the rotation axis of the first drive roller 111; the second roller group 12 includes a second drive roller 121, which rotates about the rotation axis of the second drive roller 121; the first drive roller 111 and the second drive roller 121 are used to drive the roll material to move; the first roller group also includes at least one first conveyor roller, the top of an adjacent first drive roller being flush with the first conveyor roller; and / or, the second roller group also includes at least one second conveyor roller, the top of an adjacent second drive roller being flush with the second conveyor roller.

[0048] The first roller group 11 may include, but is not limited to, the first drive roller 111, and the second roller group 12 may include, but is not limited to, the second drive roller 121. The first drive roller 111 and the second drive roller 121 are in close contact with the lower surface of the roll material. The roll material is moved by the rotation of the first drive roller 111 and the second drive roller 121. Since the drive rollers that provide power to the roll material are located on both sides of the gravity wheel 21, they have the advantage of uniform force distribution, which reduces the possibility of roll material breakage.

[0049] Conveyor rollers can be installed in the first roller group 11 and the second roller group 12. The conveyor rollers are used in conjunction with the drive rollers to make the roll material move horizontally inside the first roller group 11 or the second roller group 12 and provide support, thereby preventing the roll material from bending inside the roller group and improving the roll material yield.

[0050] The number of first conveyor rollers 112 is multiple, and the tops of the multiple first conveyor rollers 112 are flush; and / or, the number of second conveyor rollers 122 is multiple, and the tops of the multiple second conveyor rollers 122 are flush.

[0051] Having the tops of multiple conveyor rollers flush allows the roll material to remain horizontal as it moves between the multiple conveyor rollers and drive rollers, reducing the likelihood of deformation during movement and improving production yield.

[0052] The winding and unwinding machine also includes a winding shaft 3 and a guiding mechanism 4. The winding shaft 3 is located on the side of the drive roller group 1 away from the adjusting tension roller group 2 and is used to wind out or wind in the roll material. The guiding mechanism 4 is located on the side of the drive roller group 1 close to the winding shaft 3 and is used to control the direction of the roll material entering the drive roller group 1.

[0053] The roll shaft 3 is used to hold unprocessed or processed rolls of material, while the guide mechanism 4 is used to control the direction of the rolls, ensuring the correctness of the roll movement direction and improving product yield.

[0054] The winding and unwinding machine also includes a tension sensing wheel 5, which is disposed in the first roller group 11 or the second roller group 12 and is used to detect the tension of the roll material.

[0055] The tension sensing wheel 5 can detect the tension received by the roll material during movement, preventing excessive tension from causing breakage and improving product yield.

[0056] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A winding and unwinding machine, comprising a drive roller assembly (1) for driving the movement of a roll material, characterized in that, The winding and unwinding machine also includes an adjusting tension roller group (2). The driving roller group (1) includes a first roller group (11) and a second roller group (12). The first roller group (11) and the second roller group (12) are arranged in sequence. The adjusting tension roller group (2) is arranged between the first roller group (11) and the second roller group (12) and is in close contact with part of the upper surface of the roll material. The moving direction of the roll material is from the first roller group (11) to the second roller group (12). The tensioning roller assembly (2) includes a gravity wheel (21) and a monitoring mechanism (23). The monitoring mechanism (23) is located on both sides of the gravity wheel (21) in the direction of movement. It can monitor the position of the gravity wheel (21) and adjust the winding speed of the first drive roller (111) and the second drive roller (121) separately according to the monitoring results.

2. The winding and unwinding machine according to claim 1, characterized in that, The gravity wheel (21) can change the length of the roll between the first roller group (11) and the second roller group (12) by moving in the height direction; The tensioning roller assembly (2) further includes a limiting mechanism (22), which is located at both ends of the movement path of the gravity wheel (21) and is used to limit the gravity wheel (21) to be within a set range.

3. The winding and unwinding machine according to claim 1, characterized in that, The monitoring mechanism (23) includes a first detection group (231), a second detection group (232), and a fixed guide rail (233). The first detection group (231) and the second detection group (232) are detachably fixed on the fixed guide rail (233). The first detection group (231) is located at both ends of the movement path of the gravity wheel (21) and is used to adjust the winding speed of the first drive roller (111) or the second drive roller (121) when the gravity wheel (21) is detected to pass by. The second detection group (232) is located on both sides of the first detection group (231) and is used to stop the winding of the first drive roller (111) or the second drive roller (121) when the gravity wheel (21) is detected.

4. The winding and unwinding machine according to claim 3, characterized in that, The gravity wheel (21) is initially set at a set height. When the winding speed of the first roller group (11) is greater than the winding speed of the second roller group (12), the gravity wheel (21) descends, and the length of the roll between the first roller group (11) and the second roller group (12) increases. When the first detection group (231) detects the gravity wheel (21), the winding speed of the first roller group (11) is reduced. When the second detection group (232) detects the gravity wheel (21), the first roller group (11) stops rotating. When the winding speed of the first roller group (11) is less than the winding speed of the second roller group (12), the gravity wheel (21) rises, the length of the roll between the first roller group (11) and the second roller group (12) decreases, when the first detection group (231) detects the gravity wheel (21), the winding speed of the second roller group (12) is reduced, and when the second detection group (232) detects the gravity wheel (21), the second roller group (12) stops rotating.

5. The winding and unwinding machine according to claim 1, characterized in that, The diameter of the gravity wheel (21) is greater than the diameter of the rollers of the first roller group (11) or the diameter of the rollers of the second roller group (12).

6. The winding and unwinding machine according to claim 1, characterized in that, The distance between the first roller group (11) and the second roller group (12) is greater than or equal to the diameter of the gravity wheel (21).

7. The winding and unwinding machine according to any one of claims 1-6, characterized in that, The first roller group (11) includes a first drive roller (111) that rotates about the rotation axis of the first drive roller (111), and the second roller group (12) includes a second drive roller (121) that rotates about the rotation axis of the second drive roller (121). The first drive roller (111) and the second drive roller (121) are used to drive the roll material to move. The first roller group (11) further includes at least one first conveyor roller (112), the top of an adjacent first drive roller (111) being flush with the first conveyor roller (112); and / or, The second roller group (12) further includes at least one second conveyor roller (122), the top of which is flush with the top of the adjacent second drive roller (121).

8. The winding and unwinding machine according to claim 7, characterized in that, The number of the first conveyor rollers (112) is plurality of, and the tops of the plurality of first conveyor rollers (112) are flush; and / or, There are multiple second conveyor rollers (122), and the tops of the multiple second conveyor rollers (122) are flush.

9. The winding and unwinding machine according to any one of claims 1-4, characterized in that, The winding and unwinding machine also includes a winding shaft (3) and a guiding mechanism (4). The winding shaft (3) is located on the side of the drive roller group (1) away from the adjusting tension roller group (2) and is used to wind out or wind in the roll material. The guiding mechanism (4) is located on the side of the drive roller group (1) near the roll shaft (3) and is used to control the direction of the roll material entering the drive roller group (1).

10. The winding and unwinding machine according to any one of claims 1-4, characterized in that, The winding and unwinding machine also includes a tension sensing wheel (5), which is disposed in the first roller group (11) or the second roller group (12) and is used to detect the tension of the roll material.

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