A conveying control method of a sheet automatic storage device and a roll-to-sheet processing system

Abstract

The application discloses a kind of conveying control method of sheet automatic storage device and roll-to-sheet processing system, it is related to semiconductor technical field, sheet automatic storage device includes belt conveying component and platform, sheet is conveyed to platform by belt conveying component, belt conveying component includes movable conveying unit, movable conveying unit includes first guide part, conveying control method includes: after sheet is conveyed to movable conveying unit, movable conveying unit moves to platform and simultaneously conveys sheet;After the head of sheet is conveyed to first guide part, reduce conveying speed;After the head of sheet is conveyed to platform, movable conveying unit reversely displaces and keeps the conveyance of sheet, displacement speed is greater than conveying speed;After the head of sheet extends first guide part and is set length, reduce displacement speed and conveying speed.The conveying control method of sheet automatic storage device of the application does not affect the quality of sheet under the premise of guaranteeing the storage efficiency of sheet.

Description

Technical Field

[0001] This invention relates to the field of semiconductor technology, and more specifically to a transfer control method and roll-to-roll processing system for an automated wafer storage device. Background Technology

[0002] Fine Metal Mask (FMM) is a core material in the display manufacturing process, and its main function is to achieve precise pattern transfer during the vapor deposition process. FMM is made from thin metal material through multiple processing steps, and it has a precise mask pattern. If the mask pattern is deformed or damaged, it will seriously affect the subsequent vapor deposition process.

[0003] Although FMMs undergo multiple quality checks during production to remove defective products, a certain number of defective products still remain in the final product. Through investigation of each manufacturing process, it was discovered that some FMMs experience quality issues during the transfer of finished products from the production line to the packaging box. Therefore, a better transfer method is needed to address the problem of FMMs being damaged due to deformation. Summary of the Invention

[0004] This invention aims to address one of the technical problems in related technologies to a certain extent. To this end, this invention provides a conveying control method for an automatic sheet storage device that ensures sheet storage efficiency without affecting sheet quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A conveying control method for an automated sheet storage device, the automated sheet storage device including a belt conveyor assembly and a platform located below the belt conveyor assembly, the sheet being conveyed from the belt conveyor assembly to the platform, the belt conveyor assembly including a movable conveying unit horizontally movable in the conveying direction, the end of the movable conveying unit including a first guide portion offset horizontally toward the platform in the conveying direction, the conveying control method including:

[0007] Obtain the position information of the sheet;

[0008] After the sheet is conveyed to the movable conveyor unit, the movable conveyor unit is controlled to move a set distance toward the platform while conveying the sheet.

[0009] After the first end of the sheet is conveyed to the first guide section, the conveying speed of the sheet is reduced.

[0010] After the sheet is conveyed from the first guide to the platform, the movable conveying unit is controlled to move in the opposite direction and maintain the conveying of the sheet. The displacement speed of the movable conveying unit is greater than the conveying speed of the sheet.

[0011] After the first guide extends a set length from the beginning of the sheet, the displacement speed of the movable conveying unit and the conveying speed of the sheet are reduced. The reduced displacement speed of the movable conveying unit is greater than the reduced conveying speed of the sheet.

[0012] This invention discloses an automated sheet storage device for conveying sheets and transferring them to a platform for storage. The automated sheet storage device includes a belt conveyor assembly and a platform. The belt conveyor assembly conveys the sheets via a belt, moving them towards the platform and transferring them from the belt conveyor assembly to the platform for storage. This achieves automated sheet storage, eliminating the need for manual transfer and avoiding sheet deformation caused by various uncertainties inherent in manual transfer.

[0013] The belt conveyor assembly supports and transports the sheet material via a belt. The platform is located below the belt conveyor assembly. When the sheet material is transported from the movable conveyor unit to the top of the platform, the movable conveyor unit can be moved to prevent the sheet material from falling onto the platform in a wavy or folded shape and deforming during the process of being transported out of the belt conveyor assembly. This eliminates the need to use a clamping method for transfer and avoids deformation of the sheet material due to localized stress.

[0014] The sheet material is soft and lightweight, making it prone to bending and deformation during free fall. Since the belt conveyor assembly and platform are at different heights, to prevent deformation at the ends of the sheet due to lack of support during its descent, the movable conveyor unit includes a first guide. This guide causes the sheet to gradually move towards the platform on the movable conveyor unit. Because the first guide is offset horizontally towards the platform, it reduces the impact of the height difference between the movable conveyor unit and the platform, preventing deformation of the sheet due to this height difference as it falls from the belt conveyor assembly onto the platform. Furthermore, the first guide also reduces positional shift of the sheet as it falls onto the platform, preventing deformation in the width direction.

[0015] To balance conveying efficiency and sheet protection, the automatic sheet storage device employs a conveying control method. The conveying speed is adjusted according to the sheet's position during conveying to achieve rapid sheet storage and prevent deformation during storage. Thus, a simple structure can ensure sheet storage efficiency without compromising sheet quality.

[0016] The sheet material is conveyed from the movable conveyor unit to the platform in four stages: Stage 1, the sheet material is conveyed to the first guide section; Stage 2, the leading end of the sheet material is conveyed from the first guide section to the platform; Stage 3, the sheet material begins to fall continuously onto the platform; Stage 4, the leading end of the sheet material of a set length extends beyond the first guide section. Each stage has a different conveying speed.

[0017] In stage one, the sheet is rapidly conveyed towards the platform, and the movable conveyor unit also moves towards the platform simultaneously. At this time, the sheet's speed relative to the platform is the moving speed of the movable conveyor unit plus the conveying speed of the belt on the movable conveyor unit. This allows the sheet to quickly reach the end of the platform. If the conveyor relies solely on the belt, excessively high conveying speeds can cause slippage between the sheet and the belt. Furthermore, to prevent the sheet from exiting the first guide section too quickly in stage two, the belt needs to be decelerated, which also requires a certain amount of time. The combined action of the movable conveyor unit and the belt not only prevents the sheet from moving too fast relative to the first guide section but also ensures a relatively fast conveying speed relative to the platform. In this stage, by adjusting the moving speed of the movable conveyor unit and the conveying speed of the belt, the sheet can be made to move a set distance on the movable conveyor unit so that its head reaches the first guide section, allowing it to directly enter stage two and improving conveying efficiency.

[0018] In stage two, the sheet gradually exits the first guide section and falls onto the platform under the conveyor belt. During this stage, the conveyor belt speed is reduced to prevent the first end of the sheet from falling onto the platform too quickly and deforming due to impact. In addition, the slow falling of the sheet onto the platform also makes it easier for the system to control the conveyor belt assembly in a timely manner after detecting changes in the sheet's position. This prevents the sheet from folding or bending at the first end due to excessive conveyor speed and the moving conveyor unit only starting to move in the opposite direction after falling onto the platform for a certain length.

[0019] In stage three, the movable conveyor unit reverses its displacement to reset, and the belt continues to convey the sheet, causing the sheet to fall continuously onto the platform. The reverse displacement of the movable conveyor unit allows different parts of the sheet to fall onto the platform at different positions, thus preventing deformation caused by stacking. During storage, the displacement speed of the movable conveyor unit is greater than the conveying speed of the sheet. Due to the friction between the belt and the sheet, the movable conveyor unit has a certain pulling effect on the sheet during the reset process, which can keep the sheet under tension during storage and prevent the middle from arching after storage.

[0020] In stage four, once the first end of the sheet extends beyond the first guide section by a set length, it means that the tail end of the sheet will also be stored. In order to avoid deformation of the tail end of the sheet due to inertia and other factors caused by excessively fast conveying speed, the reverse displacement speed of the moving conveyor unit and the conveying speed of the sheet are reduced after entering stage four, and the storage speed of the sheet is slowed down, so as to sacrifice some storage efficiency to ensure the quality of the sheet.

[0021] Optionally, the movable conveying unit includes a first movable roller and a second movable roller located downstream of the first movable roller. The belt is driven between the first movable roller and the second movable roller. The first guide is an inclined structure, which includes a first inclined surface that slopes from the top of the second movable roller toward the platform. The sheet is guided to the platform by the first inclined surface.

[0022] Optionally, from upstream to downstream, the belt conveyor assembly further includes a first conveying unit and a second conveying unit. The movable conveying unit is located downstream of the second conveying unit. The first conveying unit and the second conveying unit are located at the same height. The height of the movable conveying unit is lower than that of the second conveying unit. The conveying speed of the first conveying unit is less than that of the second conveying unit. The conveying speed of the second conveying unit is not greater than the speed at which the movable conveying unit moves toward the platform.

[0023] The belt conveyor assembly includes a first conveying unit, a second conveying unit, and a movable conveying unit. During the conveying process, the sheet material sequentially passes through the first conveying unit, the second conveying unit, and the movable conveying unit. All three conveying units transport the sheet material via belts. The movable conveying unit is positioned lower than the second conveying unit, allowing the sheet material on the second conveying unit to be stably conveyed to the movable conveying unit. This arrangement saves space occupied by the belt conveyor assembly in the conveying direction.

[0024] The three conveying units operate at different speeds. The first conveying unit transfers the sheet to the second conveying unit and provides initial acceleration. The second conveying unit then transfers the sheet to the moving conveying unit at an even faster speed, thus increasing the sheet's overall conveying speed. Since the sheet is thin and lightweight, setting a faster conveying speed for the first conveying unit would cause the slow-moving sheet to slip upon contact, reducing conveying efficiency. By progressively increasing the sheet's conveying speed through the first and second conveying units, stable and efficient sheet conveying is ensured.

[0025] The longer the conveyor unit is, the longer the time required for acceleration and deceleration will be. By adopting this solution, the length of the movable conveyor unit can be avoided, so as to adjust the conveying speed of the sheet in a timely manner and ensure that the quality of the sheet is not affected during storage.

[0026] Optionally, the end of the second conveying unit away from the first conveying unit includes a second guide portion offset horizontally toward the active conveying unit, and the conveying control method further includes:

[0027] After the first end of the sheet is detected to be conveyed to the second guide, the conveying speed of the sheet is reduced.

[0028] After recognizing that the first end of the sheet has been transferred from the second guide to the movable conveyor unit, the sheet conveying speed is increased.

[0029] Because of the height difference between the second conveying unit and the movable conveying unit, to prevent deformation of the sheet material during its transfer to the movable conveying unit due to this height difference, the second conveying unit includes a second guide section. The second guide section has a similar function to the first guide section, minimizing the impact of the height difference, preventing deformation of the sheet material during transfer to the movable conveying unit, and reducing positional deviation during this process. Since the movable conveying unit can move horizontally and simultaneously transfer the sheet material during the transfer process from the second conveying unit to the movable conveying unit, the sheet material maintains a certain tension through friction with the belt, preventing central arching and achieving high-efficiency sheet material transfer.

[0030] The sheet conveying process on the second conveying unit is divided into four stages: Stage 1, the sheet is conveyed from the first conveying unit to the second conveying unit; Stage 2, the entire sheet is conveyed from the second conveying unit to the second guide; Stage 3, the leading end of the sheet is conveyed to the second guide; Stage 4, the sheet is conveyed from the second conveying unit to the movable conveying unit. The conveying speed of the second conveying unit is adjusted according to the changes in the stages to ensure efficient sheet conveying while avoiding damage to the sheet.

[0031] In both phase one and phase two, the sheet conveying speed remains constant. In phase one, when the sheet is conveyed from the first conveying unit to the second conveying unit, the friction between the sheet and the belt on the first conveying unit is greater because the length of the sheet extending beyond the first conveying unit is shorter. The sheet is conveyed to the second conveying unit at the conveying speed of the first conveying unit. As the length of the sheet extending beyond the first conveying unit increases, the friction between the sheet and the belt on the second conveying unit gradually increases, thereby accelerating the sheet from the first conveying unit to the second conveying unit through friction.

[0032] In stage three, the sheet is gradually conveyed by the belt and falls from the second guide into the movable conveyor unit. In this stage, the conveying speed of the belt is reduced to prevent the first end of the sheet from falling into the movable conveyor unit too fast and deforming due to impact.

[0033] In stage four, the leading end of the sheet has fallen onto the movable conveyor unit, which is simultaneously moving and being conveyed by a belt. The leading end of the sheet is conveyed to the first guide unit by the movable conveyor unit as soon as it falls onto the movable conveyor unit, so the sheet will not stack during the process of falling onto the movable conveyor unit.

[0034] Optionally, the first conveying unit conveys the sheet at a speed V1;

[0035] The second conveying unit operates at a speed V 21 The sheet is transferred to the second guide section, V 21 =a×V1, a=1.2~2;

[0036] The second conveying unit operates at a speed V 22 The sheet is fed out of the second guide section, V 22 =b×V 21 b = 0.8 to 1;

[0037] The second conveying unit operates at a speed V 23 The sheet is conveyed to the movable conveyor unit, V 23 =c×V 21 c = 2 to 3;

[0038] The active conveyor unit operates at a speed V 31 Move towards the platform at speed V 41 The sheet is transferred to the first guide section, V 31 =V 23 V 41 =d×V 21 d = 0.8~1.5;

[0039] The active delivery unit uses V 42 The sheet is fed from the first guide section onto the platform, V 42 =e×V 41 e = 0.5~0.8;

[0040] The active conveyor unit operates at a speed V 32 After reversing the displacement and extending the first guide portion beyond the leading end of the sheet by a set length, the speed is reduced from V. 32 Reduce to V 33 At the same time, with speed V 42 After conveying the sheet and extending the first guide portion beyond the leading end of the sheet by a set length, the speed is increased from V. 42 Reduce to V 43 V 32 =V 41 V 33 =f×V 41 f = 0.8 ~ 1, V 43 =g×V 42 g = 0.8~1.

[0041] Optionally, the second conveying unit further includes a first roller and a second roller located downstream of the first roller. A belt is driven between the first roller and the second roller. The second guide is located downstream of the second roller and has an inclined structure. The second guide includes a second inclined surface that slopes from the top of the second roller toward the movable conveying unit. The sheet is guided to the movable conveying unit by the second inclined surface. By guiding the sheet with the second inclined surface, the sheet can gradually move closer to the movable conveying unit, and the sheet can maintain a uniform descent speed to avoid deformation of the sheet due to fluctuations in the descent speed.

[0042] Optionally, the sheet is a thin metal material, and multiple magnetic attractors are spaced apart on the second guide portion along the conveying direction of the sheet. The magnetic attractors can attract the sheet, allowing the sheet to adhere to the second inclined surface of the second guide portion during conveying, thus preventing the sheet from shifting or falling off during conveying.

[0043] Optionally, the length of the second conveying unit is greater than the length of the first conveying unit. The function of the first conveying unit is to initially accelerate the sheet and transfer it to the second conveying unit, where it is then further accelerated. The length of the first conveying unit only needs to be sufficient to accelerate the sheet to the required speed. Setting a longer length would shorten the length of the second conveying unit, reducing the sheet conveying efficiency.

[0044] Optionally, the belt conveyor assembly further includes multiple air blowing devices, which are spaced apart along the conveying path of the belt conveyor assembly. One of the multiple air blowing devices corresponds to the first guide section. The air blowing device can blow air onto the sheet, ensuring that the sheet remains in contact with the belt during conveying and preventing the sheet from arching during conveying. An air blowing device is also provided corresponding to the first guide section, allowing the sheet to adhere to the first guide section as it falls from the belt conveyor assembly into the box. When the tail end of the sheet reaches the first guide section, the belt can no longer convey the sheet, and the sheet is separated from the first guide section by the reverse displacement of the movable conveyor unit. The airflow generated by the air blowing device increases the force between the sheet and the first guide section, thereby enhancing the friction between them and preventing the tail end of the sheet from falling directly from the first guide section or shifting after leaving the belt. This prevents the tail end of the sheet from deforming and being damaged during storage.

[0045] Optionally, the belt conveyor assembly includes multiple belts with multiple through holes. The belt conveyor assembly also includes multiple air extraction devices that extract air through the through holes. These multiple air extraction devices are spaced apart along the conveying path of the belt conveyor assembly. The air extraction devices can extract air through the through holes, causing the sheet to be subjected to negative pressure during conveying and thus adhere to the belt, reducing sheet deviation during conveying. Furthermore, it can increase the static friction between the belt and the sheet, enabling the sheet to be conveyed stably with the belt.

[0046] Optionally, the automatic sheet storage device further includes multiple boxes, a lateral moving device, and loading and unloading platforms respectively arranged on both sides of the platform along the width direction of the sheet. The platform is used to place the boxes for storing the sheets, the loading platform is used to place spare boxes, and the unloading platform is used to place boxes containing sheets. The lateral moving device is used to transfer boxes from the loading platform to the platform or transfer boxes from the platform to the unloading platform. The boxes are used to store the sheets, so that the sheets can be picked up and put down together with the boxes. This way, when external equipment moves the boxes, the force will not be directly applied to the sheets, avoiding damage to the sheets during the transfer process. The lateral moving device can automatically transfer boxes containing sheets to the unloading platform for storage, and then transfer empty boxes from the loading platform to the platform for sheet storage, enabling large-scale automated sheet storage operations.

[0047] This invention also discloses a roll-to-sheet processing system for substrates, including an unwinding device and a conveying device located downstream of the unwinding device. A cutting device is provided along the conveying path of the conveying device, and the aforementioned automatic sheet storage device is located downstream of the cutting device. The roll-to-sheet processing system uses the aforementioned conveying control method to store the sheet. This invention also discloses a roll-to-sheet processing system for substrates, including an unwinding device and a conveying device. The unwinding device unwinds the substrate and conveys it through the conveying device. The cutting device can cut the substrate into sheets. The conveying device can continue to convey the sheets downstream. Downstream of the conveying device is the aforementioned automatic sheet storage device, used for automated storage of the sheets conveyed by the conveying device. The beneficial effects of the automatic sheet storage device have been described above and will not be repeated here.

[0048] Optionally, from upstream to downstream, the conveying device includes multiple conveyors with the same conveying speed, the conveying speed of which is less than the conveying speed of the belt conveyor assembly. The multiple conveyors form the conveying path, and the conveyor is located downstream of the cutting device. The substrate is conveyed simultaneously by multiple conveyors, and the cutting device is located between two conveyors. During the cutting process, the substrate is cut by the cutting device only after it has passed the set length (i.e., the length of the sheet). Then, the sheet is conveyed to the belt conveyor assembly by the conveyor downstream of the cutting device, instead of placing the cutting device between the conveying device and the belt conveyor assembly. This avoids the substrate being conveyed to the belt conveyor assembly before being cut, which would affect the conveying of the substrate upstream of the cutting device, and the excessively fast conveying speed of the belt conveyor assembly would also affect the cutting quality of the sheet. Therefore, at least one conveyor is provided downstream of the cutting device.

[0049] Optionally, an adsorption device is also provided downstream of the cutting device. This adsorption device can reciprocate along the conveying direction and is used to adsorb the cut substrate and guide it onto the downstream conveyor. Because the cutting device is located between two conveyors, the distance between these two conveyors is larger than the distance between other adjacent conveyors to allow sufficient space for cutting. The adsorption device can adsorb the substrate being conveyed downstream by the cutting device, preventing the substrate from falling into the area between the two conveyors. Furthermore, the adsorption device has the function of reciprocating along the conveying direction, allowing it to carry the substrate downstream after adsorption, ensuring smooth delivery to the downstream conveyor. The adsorption device holds the substrate by adsorption rather than clamping, reducing damage to the substrate.

[0050] Optionally, the conveying speed of the conveying device is V0, and the conveying speed of the belt conveyor assembly is not less than V0. 01 V 01 =A×V0, A=6~12. The conveying speed of the belt conveyor assembly is at least 6 times that of the conveying device, so that after the sheet is conveyed to the belt conveyor assembly, it can be quickly stored and processed before the next sheet is conveyed to the belt conveyor assembly, thereby preventing the two sheets from colliding and being damaged simultaneously due to untimely processing.

[0051] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0052] The present invention will be further described below with reference to the accompanying drawings:

[0053] Figure 1 This is a simplified structural diagram of the roll-to-roll processing system in this invention;

[0054] Figure 2 This refers to the sheet placement process in the box in this invention;

[0055] Figure 3 This is a flowchart illustrating the control process of transferring the sheet material from the active conveying unit to the box body according to the present invention.

[0056] Figure 4 This is a flowchart illustrating the control process of transferring the sheet material from the second conveying unit to the box body according to the present invention.

[0057] Figure label:

[0058] Unwinding device 100;

[0059] Film removal and cleaning device 200, film removal unit 210, cleaning unit 220, drying unit 230;

[0060] Cutting device 300;

[0061] 400 sheets;

[0062] Platform 500, box 510, feeding device 520;

[0063] The system includes a movable conveyor unit 600, a first guide part 601, a first movable roller 602, a second movable roller 603, a first inclined surface 604, a belt 610, a through hole 611, a first conveyor unit 620, a second conveyor unit 630, a second guide part 631, a first roller 632, a second roller 633, a second inclined surface 634, and a conveyor 640.

[0064] Air blowing device 700;

[0065] Adsorption device 800;

[0066] Automatic correction device 900. Detailed Implementation

[0067] Embodiments of the present invention are described in detail below, examples of which are illustrated 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 the present invention and should not be construed as limiting the invention.

[0068] 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 invention. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0069] Reference Figures 1 to 3 This invention discloses a roll-to-sheet processing system for substrates, including a roll-to-roll device and a conveying device located downstream of the roll-to-roll device. The roll-to-roll device includes an unwinding device 100 and a winding device, with the winding device located upstream of the conveying device. The front end of the substrate is pulled by a PET traction material, which is then wound up by the winding device. The substrate pulled by the PET traction material continues to be conveyed downstream to the conveying device. A film removal and cleaning device 200 is provided on the conveying path of the roll-to-roll device, and a cutting device 300 is provided on the conveying path of the conveying device. An automatic sheet storage device is located downstream of the cutting device 300.

[0070] The rolled substrate is unwound by the unwinding device 100 and conveyed by the conveying device. The film removal and cleaning device 200 is used to remove the photosensitive film on the surface of the substrate and clean the substrate after film removal. The cutting device 300 can cut the substrate after film removal and cleaning to make the substrate into sheet 400. The conveying device can continue to convey the sheet 400 downstream to the automatic sheet storage device, and the automatic sheet storage device performs an automated boxing operation on the sheet 400.

[0071] The automatic sheet storage device includes a belt conveyor assembly, a platform 500 located below the belt conveyor assembly, and a cassette 510 placed on the platform 500. Sheets 400 are conveyed by the belt conveyor assembly into the cassette 510 according to a conveying control method. The belt conveyor assembly includes a fixed conveying unit and a movable conveying unit 600 that can move horizontally relative to the fixed conveying unit. The movable conveying unit 600 is located downstream of the fixed conveying unit and includes a first guide portion 601 that is offset horizontally toward the platform 500. Figure 3 As shown above, the transmission control method includes:

[0072] Obtain the position information of sheet 400;

[0073] After the sheet 400 is transferred to the movable conveyor unit 600, the movable conveyor unit 600 is controlled to move a set distance toward the platform 500 while simultaneously transferring the sheet 400.

[0074] After the first end of the sheet 400 is conveyed to the first guide 601, the conveying speed of the sheet 400 is reduced.

[0075] After the sheet 400 is conveyed from the first guide 601 into the box 510, the movable conveying unit 600 is controlled to move in the opposite direction and maintain the conveying of the sheet 400. The displacement speed of the movable conveying unit 600 is greater than the conveying speed of the sheet 400.

[0076] After the first guide portion 601 extends a set length from the first end of the sheet 400, the displacement speed of the movable conveyor unit 600 and the conveying speed of the sheet 400 are reduced until the sheet 400 is sent out of the belt conveyor assembly, and the reduced displacement speed of the movable conveyor unit 600 is greater than the reduced conveying speed of the sheet 400.

[0077] The positional changes of the sheet 400 are perceived by a vision system, which includes multiple cameras set along the conveying path. By acquiring images and processing them with algorithms, the vision system can maintain the recognition of the sheet 400 during its conveying process, so as to accurately determine the real-time position of the sheet 400. The roll-to-sheet processing system can then generate corresponding conveying speed control commands based on the positional changes of the sheet 400.

[0078] The set length of the first end of the sheet 400 extending out of the first guide 601 is determined by the thickness of the sheet 400. The thinner the sheet 400, the longer the extension distance.

[0079] The automatic sheet storage device includes a belt conveyor assembly and a platform 500. The belt conveyor assembly can convey the sheet 400 via a belt 610, causing the sheet 400 to move towards the platform 500 and be transferred from the belt conveyor assembly to the box 510 on the platform 500 for storage. This enables automated storage of the sheet 400, eliminating the need for manual transfer and avoiding deformation of the sheet 400 caused by various uncertainties in manual transfer.

[0080] The belt conveyor assembly supports and transports the sheet 400 via the belt 610. The platform 500 is located below the belt conveyor assembly. When the sheet 400 is transported from the movable conveyor unit 600 to the top of the platform 500, the movable conveyor unit 600 can be moved to prevent the sheet 400 from falling into the box 510 and deforming into a wave shape or folding shape during the process of exiting the belt conveyor assembly. This eliminates the need to use the clamping method to transfer the sheet 400 and avoids deformation of the sheet 400 due to local stress.

[0081] The sheet 400 is soft and lightweight, making it prone to bending and deformation during free fall. Since the belt conveyor assembly and platform 500 are at different heights, to prevent deformation of the sheet 400's ends due to lack of support during its descent, the movable conveyor unit 600 includes a first guide 601. This guide 601 guides the sheet 400 gradually towards the platform 500. Because the first guide 601 is offset horizontally towards the platform 500, the impact of the height difference between the movable conveyor unit 600 and the platform 500 is reduced, preventing deformation of the sheet 400 during its fall from the belt conveyor assembly to the platform 500. Furthermore, the first guide 601 also reduces positional shift of the sheet 400 during its fall into the housing 510, preventing deformation in the width direction.

[0082] To balance conveying efficiency and protection of the sheet 400, the automatic sheet storage device employs a conveying control method to convey the sheet 400. The conveying speed is adjusted according to the position of the sheet 400 during conveying, so as to achieve rapid dropping of the sheet 400 into the box and avoid deformation of the sheet 400 during the dropping process. In this way, the quality of the sheet 400 can be guaranteed without affecting the efficiency of dropping the sheet 400 into the box through a simple structure.

[0083] The transfer of sheet 400 from the movable conveying unit 600 to the housing 510 is divided into four stages: Stage 1, sheet 400 is transferred to the first guide 601; Stage 2, the leading end of sheet 400 is transferred from the first guide 601 into the housing 510; Stage 3, sheet 400 begins to fall continuously into the housing 510; Stage 4, the leading end of sheet 400 of a set length extends out of the first guide 601. Figure 2 As shown, Figure 2 The process of sheet material falling into the box is disclosed in the figure. There are six process diagrams from top to bottom. The first to fourth views show the process of the sheet material arriving at the active conveyor unit 600, and the fifth view is the second stage mentioned above.

[0084] Each stage has a different teleportation speed:

[0085] In stage one, sheet 400 is rapidly conveyed towards platform 500, and movable conveyor unit 600 also moves towards platform 500 simultaneously. At this time, the moving speed of sheet 400 relative to platform 500 is the moving speed of movable conveyor unit 600 plus the conveying speed of belt 610 on movable conveyor unit 600. This allows sheet 400 to quickly reach the tail end of box 510. If conveying is solely reliant on belt 610, excessively high conveying speeds can cause slippage between sheet 400 and belt 610. Furthermore, to prevent sheet 400 from exiting the first guide section 601 too quickly in stage two, belt 610... 10 also needs to decelerate, and the belt 610 also needs a certain amount of time to decelerate. Through the movement of the movable conveyor unit 600 and the combined action of the belt 610, not only can the speed of the sheet 400 relative to the first guide part 601 be prevented from being too fast, but the conveying speed of the sheet 400 relative to the platform 500 can also be guaranteed to be relatively fast. In this stage, by adjusting the moving speed of the movable conveyor unit 600 and the conveying speed of the belt 610, the first end of the sheet 400 can reach the first guide part 601 after the movable conveyor unit 600 has moved a set distance, so as to directly enter the second stage and improve the conveying efficiency.

[0086] In stage two, the sheet 400 is gradually conveyed out of the first guide 601 and falls into the box 510 under the transmission of the belt 610. In this stage, the transmission speed of the belt 610 is reduced to prevent the first end of the sheet 400 from falling into the box 510 too quickly and deforming due to impact. In addition, the slow falling of the sheet 400 into the box 510 also makes it easier for the system to control the belt conveyor assembly in time after detecting the change in the position of the sheet 400, so as to prevent the sheet 400 from being folded or bent due to the excessive transmission speed, causing the movable conveyor unit 600 to start resetting after falling into the box 510 for a certain length.

[0087] In stage three, the movable conveyor unit 600 reverses its displacement and resets, while the belt 610 continues to convey the sheet 400, causing the sheet 400 to continuously enter the box 510. Through the reverse displacement of the movable conveyor unit 600, different parts of the sheet 400 can fall into the box 510 at different positions, thus avoiding deformation of the sheet 400 due to stacking. During the boxing process, the displacement speed of the movable conveyor unit 600 is greater than the conveying speed of the sheet 400. Because there is friction between the belt 610 and the sheet 400, the movable conveyor unit 600 has a certain pulling effect on the sheet 400 during the reset process, which can give the sheet 400 a certain tension during the boxing process and prevent the middle part from arching after the boxing.

[0088] In stage four, once the first end of sheet 400 extends a set length beyond the first guide 601, it means that the tail end of sheet 400 will also be placed in the box. In order to avoid deformation of the tail end of sheet 400 due to inertia and other factors caused by excessively fast conveying speed, the reset speed of the active conveying unit 600 and the conveying speed of sheet 400 are reduced after entering stage four, and the box-dropping speed of sheet 400 is slowed down, so as to sacrifice some box-dropping efficiency to ensure the quality of sheet 400.

[0089] By setting up the movable conveyor unit 600, the different parts of the sheet 400 can fall at different positions, thereby avoiding the stacking and deformation of the sheet 400 during the boxing process. If a fixed-length conveyor unit is used instead of the movable conveyor unit 600, and a reciprocating moving platform is used instead of the platform 500, the above purpose can also be achieved. However, multiple layers of sheet 400 usually need to be stacked in the box 510. If this method is adopted, the sheet 400 in the box 510 will also move and collide and deform during the movement of the moving platform. Therefore, this solution is not adopted in this application.

[0090] As shown in Table 1 below, after actual use, 10 sets of products were randomly selected from multiple batches of products, and the test results showed that the yield rate could be consistently up to 95%.

[0091] Table 1: Appearance Yield Statistics

[0092]

[0093] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, along the upstream to the downstream, the fixed conveying unit includes a first conveying unit 620 and a second conveying unit 630. The sheet 400 passes through the first conveying unit 620, the second conveying unit 630 and the movable conveying unit 600 in sequence during the conveying process. All three conveying units convey the sheet 400 through the belt 610.

[0094] The first conveying unit 620 and the second conveying unit 630 are located at the same height. The height of the movable conveying unit 600 is lower than that of the second conveying unit 630. The movable conveying unit 600 can be moved from below the second conveying unit 630 to above the platform 500. The sheet 400 on the second conveying unit 630 can be stably conveyed to the movable conveying unit 600. This arrangement can save the space occupied by the belt conveyor assembly in the conveying direction.

[0095] The conveying speed of the first conveying unit 620 is less than the conveying speed of the second conveying unit 630, and the conveying speed of the second conveying unit 630 is not greater than the speed at which the movable conveying unit 600 moves toward the platform 500.

[0096] The three conveying units have different conveying speeds. The first conveying unit 620 is used to convey the sheet 400 to the second conveying unit 630 and initially accelerate the sheet 400. The second conveying unit 630 can convey the sheet 400 to the moving conveying unit 600 at a faster speed, which can increase the conveying speed of the sheet 400. The sheet 400 is thin and lightweight. If the first conveying unit 620 is set to a faster conveying speed, the sheet 400 will slip after contacting the first conveying unit 620, which will reduce the conveying efficiency of the sheet 400. By gradually increasing the conveying speed of the sheet 400 through the first conveying unit 620 and the second conveying unit 630, the stable and efficient conveying of the sheet 400 can be ensured.

[0097] The longer the conveyor unit is, the longer the time required for acceleration and deceleration will be. By adopting this solution, the length of the movable conveyor unit 600 can be avoided, so as to adjust the conveying speed of the sheet 400 in a timely manner and ensure that the quality of the sheet 400 is not affected when it falls into the box.

[0098] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the conveying device includes multiple conveyors 640 with the same conveying speed from upstream to downstream. The conveying speed of the conveyors 640 is less than the conveying speed of the first conveying unit 620. The multiple conveyors 640 form a conveying path, and a conveyor 640 is provided downstream of the cutting device 300.

[0099] The substrate is simultaneously conveyed by multiple conveyors 640, passing sequentially through the film removal and cleaning device 200 and the cutting device 300. The cutting device 300 is located between two conveyors 640. During the cutting process, the substrate is cut by the cutting device 300 only after it has passed the set length (i.e., the length of the sheet 400). The sheet 400 is then conveyed to the belt conveyor assembly by the downstream conveyor 640 of the cutting device 300. Instead of placing the cutting device 300 between the conveyor and the belt conveyor assembly, this avoids the substrate being conveyed to the belt conveyor assembly before being cut, which would affect the conveying of the substrate upstream of the cutting device 300. Also, the excessively fast conveying speed of the belt conveyor assembly would affect the cutting quality of the sheet 400. Therefore, at least one conveyor 640 is provided downstream of the cutting device 300.

[0100] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the end of the second conveying unit 630 away from the first conveying unit 620 includes a second guide portion 631 that is offset horizontally toward the active conveying unit 600.

[0101] Because there is a height difference between the second conveying unit 630 and the movable conveying unit 600, to prevent the sheet 400 from deforming due to the height difference during its transfer to the movable conveying unit 600, the second conveying unit 630 includes a second guide part 631. The second guide part 631 has a similar function to the first guide part 601, which can reduce the impact of the height difference, prevent the sheet 400 from deforming during its transfer to the movable conveying unit 600, and reduce positional deviation of the sheet 400 during its transfer to the movable conveying unit 600. During the transfer of the sheet 400 from the second conveying unit 630 to the movable conveying unit 600, the movable conveying unit 600 can move horizontally and transfer simultaneously. The sheet 400 maintains a certain tension during this process through friction with the belt 610, preventing central arching and achieving high-efficiency transfer of the sheet 400.

[0102] Reference Figure 1 and Figure 4 Based on the above embodiments, in one embodiment of the present invention, the transmission control method further includes:

[0103] After it is detected that the first end of the sheet 400 has been conveyed to the second guide 631, the conveying speed of the sheet 400 is reduced.

[0104] After the first end of the sheet 400 is detected to be transferred from the second guide 631 to the movable conveying unit 600, the conveying speed of the sheet 400 is increased.

[0105] The conveying of sheet 400 on the second conveying unit 630 is divided into four stages: Stage 1, sheet 400 is conveyed from the first conveying unit 620 to the second conveying unit 630; Stage 2, the entire sheet 400 is conveyed from the second conveying unit 630 to the second guide part 631; Stage 3, the leading end of sheet 400 is conveyed to the second guide part 631; Stage 4, sheet 400 is conveyed from the second conveying unit 630 to the movable conveying unit 600.

[0106] The conveying speed of the second conveying unit 630 will be adjusted according to the stage changes, so as to avoid damage to the sheet 400 while ensuring high-efficiency conveying of the sheet 400.

[0107] In both phase one and phase two, the conveying speed of sheet 400 remains constant. In phase one, when sheet 400 is conveyed from the first conveying unit 620 to the second conveying unit 630, because the length of sheet 400 extending beyond the first conveying unit 620 is relatively short, the friction between sheet 400 and belt 610 on the first conveying unit 620 is greater. Sheet 400 is conveyed to the second conveying unit 630 at the conveying speed of the first conveying unit 620. As the length of sheet 400 extending beyond the first conveying unit 620 increases, the friction between sheet 400 and belt 610 of the second conveying unit 630 gradually increases. Thus, the sheet 400 is accelerated and dragged from the first conveying unit 620 to the second conveying unit 630 through the action of friction.

[0108] In stage three, the sheet 400 is gradually conveyed out of the second guide 631 and falls onto the movable conveyor unit 600 under the transmission of the belt 610. In this stage, the transmission speed of the belt 610 is reduced to prevent the first end of the sheet 400 from falling onto the movable conveyor unit 600 too fast and deformed due to impact.

[0109] In stage four, the first end of sheet 400 has fallen onto the movable conveyor unit 600, and the movable conveyor unit 600 is also moving and conveyed by belt 610 at the same time. The first end of sheet 400 is conveyed to the first guide part 601 by the movable conveyor unit 600 after falling onto the movable conveyor unit 600. Therefore, the sheet 400 will not stack during the process of falling onto the movable conveyor unit 600.

[0110] The length of sheet 400 is L. In stage one, when the length of sheet 400 conveyed to the second conveying unit 630 (which can be called the overlap length) reaches 1 / 3L to 1 / 2L, it can be pulled downstream by the second conveying unit 630. The thinner the sheet 400, the longer the overlap length.

[0111] Based on the above embodiments, in one embodiment of the present invention, the change in transmission speed is specifically described.

[0112] The conveying speed of conveyor 640 is V0, and the conveying speed of the belt conveyor assembly is not less than V. 01 V 01 =A×V0, A=6~12;

[0113] The first conveying unit 620 conveys the sheet 400 at a speed of V1, where V1 = V 01 ;

[0114] The second conveying unit 630 operates at a speed V during phase one and phase two. 21 Sheet 400 is conveyed to the second guide unit 631. 21 =a×V1, a=1.2~2;

[0115] The second conveying unit 630 operates at a speed V during phase three. 22 The sheet 400 is fed out of the second guide section 631, V 22 =b×V 21 b = 0.8 to 1;

[0116] The second conveying unit 630 operates at a speed of V during phase four. 23 The sheet 400 is transferred to the movable conveyor unit 600. 23 =c×V 21 c = 2 to 3;

[0117] The active conveyor unit 600 operates at a speed V during phase one. 31 Move towards platform 500 at speed V 41 Sheet 400 is conveyed to the first guide unit 601. 31 =V 23 V 41 =d×V 21 d = 0.8~1.5;

[0118] The active conveyor unit 600 operates at V during phase two. 42 The sheet 400 is fed from the first guide section 601 into the housing 510. 42 =e×V 41 e = 0.5~0.8;

[0119] The active conveyor unit 600 operates at a speed V during phase three. 32 Reverse displacement, with velocity V 42 Convey sheet 400, V 32 =V 41 ;

[0120] The moving speed of the active conveyor unit 600 in phase four is V 32 Reduce to V 33 The conveying speed of the sheet is 400V from V 42 Reduce to V 43 V 33 =f×V 41 f = 0.8 ~ 1, V 43 =g×V 42 g = 0.8~1.

[0121] The conveying speed of the belt conveyor assembly is at least 6 times that of the conveying device, so that after the sheet 400 is conveyed to the belt conveyor assembly, it can be quickly dropped into the box before the next sheet 400 is conveyed to the belt conveyor assembly. This prevents the two sheets 400 from colliding and being damaged simultaneously due to untimely processing.

[0122] The conveying speed V0 of the conveyor 640 is set according to the film removal and cleaning speed of the film removal and cleaning device 200.

[0123] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the movable conveying unit 600 includes a first movable roller 602 and a second movable roller 603, a belt 610 is provided between the first movable roller 602 and the second movable roller 603 for transmission, the first guide part 601 has an inclined structure, the first guide part 601 includes a first inclined surface 604 that is inclined from the top of the second movable roller 603 toward the platform 500, and the sheet 400 is guided toward the platform 500 by the first inclined surface 604.

[0124] The second conveying unit 630 also includes a first roller 632 and a second roller 633 located downstream of the first roller 632. A belt 610 is driven between the first roller 632 and the second roller 633. The second guide part 631 is located downstream of the second roller 633. The second guide part 631 has an inclined structure and includes a second inclined surface 634 that slopes from the top of the second roller 633 toward the movable conveying unit 600. The sheet 400 is guided to the movable conveying unit 600 by the second inclined surface 634.

[0125] During the conveying process, the sheet 400 passes through the second inclined plane 634 and the first inclined plane 604 respectively. Through the guiding effect of the two inclined planes during the conveying process, the sheet 400 can be gradually conveyed downward (from the second guide part 631 towards the movable conveying unit 600, and from the first guide part 601 towards the box 510). The sheet 400 can maintain a uniform speed of descent to avoid deformation of the sheet 400 due to fluctuations in the descent speed.

[0126] The first guide portion 601 and the second guide portion 631 have the same dimensions, with a horizontal length of 0.2m, and the inclination angles of the first inclined surface 604 and the second inclined surface 634 are both 20° to 60°.

[0127] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the belt conveyor assembly further includes a plurality of air blowing devices 700, which are spaced apart along the conveying path of the belt conveyor assembly. The first guide portion 601 and the second guide portion 631 are each correspondingly provided with an air blowing device 700. The air blowing device 700 includes a plurality of nozzles spaced apart along the width direction of the sheet 400.

[0128] The air blowing device 700 can blow air onto the sheet 400 so that the sheet 400 can stay in contact with the belt 610 during the conveying process, and prevent the sheet 400 from arching during the conveying process.

[0129] The air blowing device 700 corresponding to the first guide part 601 and the second guide part 631 can make the sheet 400 fit with the second inclined surface 634 and the first inclined surface 604 during the process of the sheet 400 falling from the second guide part 631 into the movable conveying unit 600 and from the first guide part 601 into the box 510.

[0130] When the tail end of the sheet 400 reaches the first guide 601, the belt 610 can no longer convey the sheet 400. The sheet 400 is separated from the first guide 601 by the reverse displacement of the movable conveying unit 600. The airflow generated by the blowing device 700 can increase the adhesion force between the sheet 400 and the first guide 601, thereby enhancing the friction between them and preventing the tail end of the sheet 400 from falling directly from the first guide 601 or deviating after leaving the belt 610. This can prevent the tail end of the sheet 400 from being deformed and damaged during the boxing process.

[0131] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the belt 610 is provided with a plurality of through holes 611, and the belt conveying assembly further includes a plurality of air extraction devices for extracting air through the through holes 611, and the plurality of air extraction devices are arranged at intervals along the conveying path of the belt conveying assembly.

[0132] The air extraction device can extract air through the through hole 611, so that the sheet 400 is subjected to negative pressure during the conveying process and fits against the belt 610, reducing the deviation of the sheet 400 during the conveying process; in addition, it can also increase the static friction between the belt 610 and the sheet 400, so that the sheet 400 can be conveyed stably with the belt 610.

[0133] Both the conveyor 640 and the belt 610 on the belt conveyor assembly are provided with through holes 611, and the conveyor 640 is also equipped with an air extraction device.

[0134] Based on the above embodiments, in one embodiment of the present invention, a plurality of magnetic suction elements are provided at intervals along the conveying direction of the sheet on the second guide portion.

[0135] The sheet is a thin metal material, and the magnetic attractor can attract the sheet, allowing it to adhere to the second inclined surface of the second guide during transport, preventing the sheet from shifting or falling off during transport. The magnetic attractor maintains the sheet's tension even before it has completely exited the second guide.

[0136] Based on the above embodiments, in one embodiment of the present invention, the length of the second conveying unit 630 is greater than the length of the first conveying unit 620.

[0137] The function of the first conveying unit 620 is to initially accelerate the sheet 400 and transfer it to the second conveying unit 630, where the second conveying unit 630 continues to accelerate the sheet. The length of the first conveying unit 620 only needs to be sufficient to accelerate the sheet 400 to the required speed. If the length is set too long, the length of the second conveying unit 630 will be shortened, reducing the conveying efficiency of the sheet 400.

[0138] In this application, the length of the first conveying unit 620 is L1=1.2m, the length of the second conveying unit 630 is L2=2m, and the maximum length of the movable conveying unit 600 is L3=2.3m.

[0139] The length of sheet 400 is L, and the length of conveyor 640 downstream of cutting device 300 is L4, where L4 ≥ 1.5L.

[0140] Based on the above embodiments, in one embodiment of the present invention, a loading platform and a unloading platform are respectively provided on both sides of the platform along the width direction of the sheet. The loading platform is used to place spare boxes, and the unloading platform is used to place boxes containing the sheet. The roll-to-sheet processing system also includes a lateral moving device, which is used to move the boxes laterally. The lateral moving device can transfer the boxes on the loading platform to the platform or transfer the boxes on the platform to the unloading platform, thus enabling large-scale automated boxing operations of sheet materials.

[0141] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, a feeding device 520 is further provided above the platform 500. The feeding device 520 is used to place lint-free paper into the box 510, so that the lint-free paper and the sheet 400 are stacked in an alternating overlapping manner. The lint-free paper can protect the sheet 400, blocking moisture and dust, and can also separate the two sheets 400 to avoid damage caused by friction between the two sheets 400.

[0142] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, an adsorption device 800 is provided downstream of the cutting device 300. The adsorption device 800 can reciprocate along the conveying direction. The adsorption device 800 is used to adsorb the cut substrate and guide the substrate to the downstream conveyor 640.

[0143] Because the cutting device 300 is located between the two conveyors 640, the distance between the two conveyors 640 is larger than the distance between other adjacent conveyors 640 in order to leave enough space for cutting. The adsorption device 800 can adsorb the substrate conveyed downstream by the cutting device 300 to prevent the substrate from falling into the area between the two conveyors 640. The adsorption device 800 also has the function of reciprocating along the conveying direction, and can carry the substrate to the downstream conveyor 640 after adsorbing it, so that the substrate can be smoothly conveyed to the downstream conveyor 640. The front end of the substrate is conveyed on the conveyor 640 for a certain distance before being cut by the cutting device 300 to make its front end into a sheet 400.

[0144] The adsorption device 800 holds the substrate by adsorption rather than clamping, which can reduce damage to the substrate.

[0145] Based on the above embodiments, in one embodiment of the present invention, the cutting device includes an identification unit and a cutting unit. Multiple mask patterns are spaced apart on the substrate along the length direction, and a cutting area is provided between two adjacent mask patterns. The identification unit identifies the substrate during the substrate transfer process, and controls the cutting unit to cut the substrate after identifying the cutting area.

[0146] The mask pattern is actually a pattern formed by multiple vapor-deposited holes penetrating the substrate. The rigidity of the part of the substrate with the mask pattern is much lower than that of the cutting area. By identifying the substrate through the recognition unit, the mask pattern and the cutting area can be effectively distinguished, preventing the cutting unit from cutting the part with the mask pattern. The cutting area has a certain rigidity and will not deform during the cutting process.

[0147] The cutting device can also move in the conveying direction. The moving speed of the cutting device is V, so that it moves synchronously with the substrate. This allows for simultaneous conveying and cutting, avoiding the situation where the upstream substrate arches due to continued conveying during the cutting process.

[0148] Reference Figure 1 Based on the above embodiments, in one embodiment of the present invention, the film removal and cleaning device 200 includes a film removal unit 210, a cleaning unit 220 and a drying unit 230 in sequence from upstream to downstream, and an automatic correction device 900 is provided upstream and downstream of the film removal and cleaning device 200.

[0149] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention 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 the present invention will be included within the scope of the claims.

Claims

1. A method for controlling the transfer of sheet material in an automatic sheet storage device, characterized in that, The automatic sheet storage device includes a belt conveyor assembly and a platform (500) located below the belt conveyor assembly. Sheets (400) are conveyed from the belt conveyor assembly onto the platform (500). The belt conveyor assembly includes a movable conveyor unit (600) that can move horizontally in the conveying direction. The end of the movable conveyor unit (600) in the conveying direction includes a first guide (601) that is offset horizontally toward the platform (500). The conveying control method includes: Obtain the position information of the sheet (400); After the sheet (400) is transferred to the movable conveyor unit (600), the movable conveyor unit (600) is controlled to move a set distance toward the platform (500) and transfer the sheet (400) at the same time. After the first end of the sheet (400) is conveyed to the first guide (601), the conveying speed of the sheet (400) is reduced; After the first end of the sheet (400) is transferred from the first guide (601) to the platform (500), the movable conveying unit (600) is controlled to move in the opposite direction and maintain the conveying of the sheet (400). The displacement speed of the movable conveying unit (600) is greater than the conveying speed of the sheet (400). After the first guide (601) extends a set length from the head end of the sheet (400), the displacement speed of the movable conveying unit (600) and the conveying speed of the sheet (400) are reduced. The displacement speed of the movable conveying unit (600) after the reduction is greater than the conveying speed of the sheet (400) after the reduction.

2. The conveying control method of the automatic sheet storage device according to claim 1, characterized in that, The movable conveying unit (600) includes a first movable roller (602) and a second movable roller (603) located downstream of the first movable roller (602). The first guide (601) has an inclined structure and includes a first inclined surface (604) that slopes from the top of the second movable roller (603) toward the platform (500). The sheet (400) is guided toward the platform (500) by the first inclined surface (604).

3. The conveying control method of the automatic sheet storage device according to claim 1, characterized in that, Along the upstream to downstream direction, the belt conveyor assembly also includes a first conveying unit (620) and a second conveying unit (630). The movable conveying unit (600) is located downstream of the second conveying unit (630). The first conveying unit (620) and the second conveying unit (630) are located at the same height. The height of the movable conveying unit (600) is lower than that of the second conveying unit (630). The conveying speed of the first conveying unit (620) is less than that of the second conveying unit (630). The conveying speed of the second conveying unit (630) is not greater than the speed at which the movable conveying unit (600) moves toward the platform (500).

4. The conveying control method of the automatic sheet storage device according to claim 3, characterized in that, The second conveying unit (630) includes a second guide (631) offset horizontally toward the movable conveying unit (600) at one end away from the first conveying unit (620), and the conveying control method further includes: After the first end of the sheet (400) is detected to be conveyed to the second guide (631), the conveying speed of the sheet (400) is reduced; After the first end of the sheet (400) is detected to be transferred from the second guide (631) to the active conveying unit (600), the conveying speed of the sheet (400) is increased.

5. The conveying control method of the automatic sheet storage device according to claim 4, characterized in that, The first conveying unit (620) conveys the sheet (400) at a speed V1. The second conveying unit (630) operates at a speed V 21 The sheet (400) is conveyed to the second guide section (631), V 21 =a×V1, a=1.2~2; The second conveying unit (630) operates at a speed V 22 The sheet (400) is fed out of the second guide section (631), V 22 =b×V 21 b = 0.8 to 1; The second conveying unit (630) operates at a speed V 23 The sheet (400) is conveyed onto the movable conveyor unit (600), V 23 =c×V 21 c = 2 to 3; The active conveyor unit (600) operates at a speed V 31 Move toward platform (500) at speed V 41 The sheet (400) is conveyed to the first guide section (601), V 31 =V 23 V 41 =d×V 21 d = 0.8~1.5; The active delivery unit (600) uses V 42 The sheet (400) is fed from the first guide (601) onto the platform (500), V 42 =e×V 41 e = 0.5~0.8; The active conveyor unit (600) operates at a speed V 32 After reversing the displacement and extending the first guide portion (601) by a set length from the head end of the sheet (400), the speed is reduced from V. 32 Reduce to V 33 At the same time, with speed V 42 After conveying the sheet (400) and extending the first guide (601) to a set length at the leading end of the sheet (400), the speed is increased from V. 42 Reduce to V 43 V 32 =V 41 V 33 =f×V 41 f = 0.8 ~ 1, V 43 =g×V 42 g = 0.8~1.

6. The conveying control method of the automatic sheet storage device according to claim 4, characterized in that, The second conveying unit (630) further includes a first roller (632) and a second roller (633) located downstream of the first roller (632). A belt (610) is driven between the first roller (632) and the second roller (633). The second guide (631) is located downstream of the second roller (633). The second guide (631) has an inclined structure and includes a second inclined surface (634) that slopes from the top of the second roller (633) toward the movable conveying unit (600). The sheet (400) is guided toward the movable conveying unit (600) by the second inclined surface (634).

7. The conveying control method of the automatic sheet storage device according to claim 6, characterized in that, The sheet (400) is a thin metal material, and the second guide (631) is provided with a plurality of magnetic suction elements at intervals along the conveying direction of the sheet (400).

8. The conveying control method of the automatic sheet storage device according to claim 3, characterized in that, The length of the second conveying unit (630) is greater than the length of the first conveying unit (620).

9. The transfer control method of the automatic sheet storage device according to any one of claims 1 to 8, characterized in that, The belt conveyor assembly further includes a plurality of air blowing devices (700), which are spaced apart along the conveying path of the belt conveyor assembly, and one of the plurality of air blowing devices (700) is provided corresponding to the first guide (601).

10. The transfer control method of the automatic sheet storage device according to any one of claims 1 to 8, characterized in that, The belt conveyor assembly includes multiple belts (610), each belt (610) having multiple through holes (611). The belt conveyor assembly also includes multiple air extraction devices that extract air through the through holes (611), and the multiple air extraction devices are spaced apart along the conveying path of the belt conveyor assembly.

11. The transfer control method of the automatic sheet storage device according to any one of claims 1 to 8, characterized in that, The automatic sheet storage device also includes multiple boxes (510), a lateral moving device, and loading and unloading platforms respectively arranged on both sides of the platform (500) along the width direction of the sheet (400). The platform (500) is used to place the boxes (510) for storing the sheet (400), the loading platform is used to place spare boxes (510), and the unloading platform is used to place the boxes (510) storing the sheet (400). The lateral moving device is used to transfer the boxes (510) on the loading platform to the platform (500) or to transfer the boxes (510) on the platform (500) to the unloading platform.

12. A roll-to-roll processing system for a substrate, characterized in that, The system includes an unwinding device (100) and a conveying device located downstream of the unwinding device (100). A cutting device (300) is provided on the conveying path of the conveying device. A sheet automatic storage device is provided downstream of the cutting device (300). The sheet automatic storage device is the sheet automatic storage device according to any one of claims 1 to 11. The roll-to-sheet processing system uses the conveying control method according to any one of claims 1 to 11 to store the sheet.

13. The roll-to-roll processing system for substrates according to claim 12, characterized in that, Along the upstream to the downstream, the conveying device includes multiple conveyors (640) with the same conveying speed. The conveying speed of the conveyors (640) is less than the conveying speed of the belt conveyor assembly. The multiple conveyors (640) constitute the conveying path. The conveyors (640) are located downstream of the cutting device (300).

14. The roll-to-roll processing system for substrates according to claim 13, characterized in that, Downstream of the cutting device (300) is an adsorption device (800), which can reciprocate along the conveying direction. The adsorption device (800) is used to adsorb the cut substrate and guide the substrate to the downstream conveyor (640).

15. The roll-to-roll processing system for substrates according to claim 12, characterized in that, The conveying speed of the conveying device is V0, and the conveying speed of the belt conveyor assembly is not less than V0. 01 V 01 =A×V0, A=6~12.

Images