Two-dimensional material transfer device

Abstract

The utility model belongs to the technical field of membrane materials, and discloses a two-dimensional material transfer device. The two-dimensional material transfer device comprises a first transfer assembly and a second transfer assembly, the first transfer assembly comprises a first unwinding roller, a main roller, a first winding roller and a first film, a two-dimensional material is attached to one side of the first film, and the first film extends out of the first unwinding roller, passes through the main roller and then is wound on the first winding roller; the ratio of the contact range of the first film and the peripheral side of the main roller to the peripheral side of the main roller is A, 1 / 3 < = A < = 2 / 3; the second transfer assembly comprises a second unwinding roller, a first middle roller, a second middle roller, a second winding roller and a second film. The second film extends out of the second unwinding roller, sequentially passes through the first middle roller and the second middle roller and then is wound on the second winding roller. According to the two-dimensional material transfer device, the two-dimensional material can be prevented from being extruded and deformed in the transfer process, and complete transfer of the two-dimensional material is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of film materials, in particular to a two-dimensional material transfer device. Background Art

[0002] The roll-to-roll transmission mechanism for film materials is a device used to transmit roll-shaped film or paper materials on the production line. The transmission mechanism is usually composed of components such as conveying rollers, tensioning devices, positioning guides and driving devices. The roll-to-roll transmission mechanism for film materials can stably transport the roll-shaped materials from one end to the other end, ensuring the continuity and stability of the materials during the production process. This mechanism is widely used in printing, packaging, coating and other industries to improve production efficiency and product quality.

[0003] Due to the particularity of the material itself, some two-dimensional materials can only be synthesized on the surface of a fixed film material, and the process includes but is not limited to vacuum coating, etc. In the use stage, the two-dimensional material formed on the surface needs to be transferred to the target surface, and in this process, the specific material formed on the surface needs to be transferred to another film material first. As a carrier, it is finally transferred to the surface of the target object. Taking graphene as an example, its preparation method is usually to grow a graphene film on the surface of a copper foil (with a very small thickness, which can be understood as a film material) by CVD growth; in subsequent graphene applications, the graphene film needs to be transferred to another film material (usually a sticky film material to achieve adhesion and peeling of the graphene film), and then the graphene on the film material is transferred to the surface of the target object (other film materials). The thickness of the graphene film is usually at the micro-nano scale, and the adhesion force is too large, too small, or uneven to achieve the complete transfer of the graphene film from the copper foil to the film material. If you are not careful, it will be damaged or the transfer will be incomplete.

[0004] In the prior art, such as Figure 1 As shown, the first film 1' (the two-dimensional material is located on the upper surface of the film) extends from the first unwinding roller 3', and is wound from the first winding roller 6' via the first intermediate roller 4' and the second intermediate roller 5'; the second film 2' extends from the second unwinding roller 7', and is wound from the second winding roller 10' via the third intermediate roller 8' and the fourth intermediate roller 9', wherein the first intermediate roller 4' and the third intermediate roller 8' abut against each other to achieve rolling adhesion, and the second intermediate roller 5' and the fourth intermediate roller 9' abut against each other to achieve rolling film tearing (the two-dimensional material is transferred to the lower surface of the second film 2'). The relationship between the first intermediate roller 4', the second intermediate roller 5', the third intermediate roller 8' and the fourth intermediate roller 9', if two or more of the four intermediate rollers are active rollers, long-term error accumulation will lead to inconsistent steps, causing the film to be over-tensioned or wrinkled, causing the two-dimensional material to be damaged. Therefore, only one of the intermediate rollers can be used as the active roller, and the friction force of single-line contact is required to drive the entire first film 1' and the second film 2' to move forward. In this case, greater pressure is required, which leads to greater deformation of the surface of the first film 1'.Figure 2 As shown in Figure 2 , the first film 1' will be squeezed and deformed during the rolling moment, which will cause the deformation of the two-dimensional material on its surface. When the deformation is too large, the two-dimensional material will be torn and damaged.

[0005] Therefore, it is urgent to design a two-dimensional material transfer device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a two-dimensional material transfer device, which can avoid the extrusion deformation of the two-dimensional material during the transfer process and ensure the complete transfer of the two-dimensional material.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A two-dimensional material transfer device, comprising:

[0009] A first transfer component, including a first unwinding roller, a main roller, a first winding roller and a first film. One side of the first film is attached with a two-dimensional material. The first film extends from the first unwinding roller, passes through the main roller and is wound on the first winding roller. The contact range between the first film and the circumferential side of the main roller accounts for a proportion A of the circumferential side of the main roller, and 1 / 3 ≤ A ≤ 2 / 3;

[0010] A second transfer component, including a second unwinding roller, a first intermediate roller, a second intermediate roller, a second winding roller and a second film. The second film extends from the second unwinding roller, passes through the first intermediate roller and the second intermediate roller in sequence and is wound on the second winding roller. Both the first intermediate roller and the second intermediate roller are in contact with a part of the main roller where the first film is attached to transfer the two-dimensional material to the second film.

[0011] As an optional solution, the diameter of the main roller is D1, the diameter of the first intermediate roller is D2, and the diameter of the second intermediate roller is D3, and D1 ≥ 2*D2 and D1 ≥ 2*D3.

[0012] As an optional solution, the first unwinding roller, the first winding roller, the second unwinding roller and the second winding roller are all fixed torque rollers.

[0013] As an optional solution, the distance between the first intermediate roller and the main roller is adjustable, and the distance between the second intermediate roller and the main roller is adjustable.

[0014] As an optional solution, the first intermediate roller is tangent to the main roller at point M, the second intermediate roller is tangent to the main roller at point N, and on the circumferential side of the main roller, the central angle corresponding to the arc MN is α, and 0° < α ≤ 180°.

[0015] As an alternative solution, a first release film is attached to one side of the second film. The second transfer assembly further includes a first release film winding roller, and the first release film is wound around the first release film winding roller between the second unwinding roller and the first intermediate roller.

[0016] As an alternative solution, the second transfer assembly further includes a first guide roller. The first guide roller abuts against the first release film extending from the second unwinding roller, and the first release film is wound around the first release film winding roller after passing through the first guide roller.

[0017] As an alternative solution, the second transfer assembly further includes a second release film and a second release film unwinding roller. The second release film extends from the second release film unwinding roller and adheres to the second film between the second intermediate roller and the second winding roller.

[0018] As an alternative solution, the second transfer assembly further includes a second guide roller. The second guide roller abuts against the second film extending from the second intermediate roller, and the second release film adheres to the second film after passing through the second guide roller.

[0019] As an alternative solution, the first film between the first unwinding roller and the main roller is parallel to the first film between the first winding roller and the main roller; and / or

[0020] The second film between the second unwinding roller and the first intermediate roller is parallel to the second film between the second winding roller and the second intermediate roller.

[0021] The beneficial effects of the present utility model are as follows:

[0022] The present utility model provides a two-dimensional material transfer device. By controlling the A value within the range of 1 / 3 to 2 / 3, the contact surface between the first film and the main roller is relatively large. On the premise of sufficient tension, when the main roller is driven to rotate, even if no pressure is applied to the outer surface of the first film, the first film can be driven to move forward. The first intermediate roller and the second intermediate roller abut against the outer side of the first film. Refer to Figure 5, the contact ranges between the second film and the first intermediate roller and the second intermediate roller are not point contacts either. When the pressures between the first intermediate roller and the main roller and between the second intermediate roller and the main roller both meet the requirement of transferring the two-dimensional material from the first film to the second film, the first intermediate roller and the second intermediate roller can move as the main roller rotates, without the need to increase the pressure to improve the friction between the first film and the second film to drive the first intermediate roller and the second intermediate roller to rotate. Therefore, compared with the prior art, the pressures between the first intermediate roller and the main roller and between the second intermediate roller and the main roller are smaller. On the one hand, the pressure on the two-dimensional material is smaller. On the other hand, since a smaller friction force is required to drive the second film to move forward, the tangential force between the first film and the second film is smaller, and the pulling force on the first film and the second film is smaller, thereby ensuring that the two-dimensional material attached thereto is not pulled, and further ensuring the integrity of the two-dimensional material during the transfer process. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a two-dimensional material transfer device provided by the prior art;

[0024] Figure 2 is a partially enlarged view of a two-dimensional material transfer device provided by the prior art;

[0025] Figure 3 is a schematic structure of a two-dimensional material transfer device provided by an embodiment of the present invention Figure 1 ;

[0026] Figure 4 is a schematic structure of a two-dimensional material transfer device provided by an embodiment of the present invention Figure 2 ;

[0027] Figure 5 is a partially enlarged view of a two-dimensional material transfer device provided by an embodiment of the present invention.

[0028] In the figure:

[0029] 1′, the first film; 2′, the second film; 3′, the first unwind roller; 4′, the first intermediate roller; 5′, the second intermediate roller; 6′, the first winding roller; 7′, the second unwind roller; 8′, the third intermediate roller; 9′, the fourth intermediate roller; 10′, the second winding roller;

[0030] 10, the first transfer assembly; 11, the first unwind roller; 12, the main roller; 13, the first winding roller; 14, the first film;

[0031] 20. Second transfer component; 21. Second unwinding roller; 22. First intermediate roller; 23. Second intermediate roller; 24. Second winding roller; 25. Second film; 251. First release film; 252. Second release film; 26. First release film winding roller; 27. First guide roller; 28. Second release film unwinding roller; 29. Second guide roller. Detailed implementation manners

[0032] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all structures.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include that the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the", and "on the" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the", and "under the" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0036] This embodiment provides a two-dimensional material transfer device, which can avoid the two-dimensional material being squeezed and deformed during the transfer process and ensure the complete transfer of the two-dimensional material. As Figure 3 and Figure 4As shown in the figure, the two-dimensional material transfer device includes a first transfer assembly 10 and a second transfer assembly 20. The first transfer assembly 10 includes a first unwinding roller 11, a main roller 12, a first winding roller 13, and a first film 14. One side of the first film 14 is attached with a two-dimensional material. The first film 14 extends from the first unwinding roller 11, passes through the main roller 12, and is wound around the first winding roller 13. The contact range between the first film 14 and the circumferential side of the main roller 12 accounts for a proportion A of the circumferential side of the main roller 12, where 1 / 3 ≤ A ≤ 2 / 3. The second transfer assembly 20 includes a second unwinding roller 21, a first intermediate roller 22, a second intermediate roller 23, a second winding roller 24, and a second film 25. The second film 25 extends from the second unwinding roller 21, passes through the first intermediate roller 22 and the second intermediate roller 23 in sequence, and is wound around the second winding roller 24. Both the first intermediate roller 22 and the second intermediate roller 23 are in contact with a part of the main roller 12 where the first film 14 is attached to transfer the two-dimensional material to the second film 25.

[0037] In the above two-dimensional material transfer device, by controlling the value of A within the range of 1 / 3 to 2 / 3, the contact surface between the first film 14 and the main roller 12 is relatively large. On the premise of sufficient tension, when the main roller 12 is driven to rotate, even without applying pressure on the outer surface of the first film 14, the first film 14 can be driven to move forward. Since the first intermediate roller 22 and the second intermediate roller 23 are in contact with the outside of the first film 14, referring to Figure 5 , the contact range between the second film 25 and the first intermediate roller 22 and the second intermediate roller 23 is not a point contact either. When the pressure between the first intermediate roller 22 and the main roller 12 and the pressure between the second intermediate roller 23 and the main roller 12 both meet the requirement of transferring the two-dimensional material from the first film 14 to the second film 25, the first intermediate roller 22 and the second intermediate roller 23 can move along with the rotation of the main roller 12 without increasing the pressure to increase the friction force between the first film 14 and the second film 25 to drive the first intermediate roller 22 and the second intermediate roller 23 to rotate. Therefore, compared with the prior art, the pressure between the first intermediate roller 22 and the main roller 12 and the pressure between the second intermediate roller 23 and the main roller 12 are smaller. On the one hand, the pressure on the two-dimensional material is smaller. On the other hand, since a smaller friction force is required to drive the second film 25 to move, the tangential force between the first film 14 and the second film 25 is smaller, and the pulling force on the first film 14 and the second film 25 is smaller, thereby ensuring that the two-dimensional material attached thereto is not pulled, and further ensuring the integrity of the two-dimensional material during the transfer process.

[0038] Optionally, as Figure 3 shown, the first intermediate roller 22 is tangent to the main roller 12 at point M, and the second intermediate roller 23 is tangent to the main roller 12 at point N. On the circumferential side of the main roller 12, the central angle corresponding to the arc MN is α, where 0° < α ≤ 180°. That is, the outermost edge positions of the first intermediate roller 22 and the second intermediate roller 23 can be set at the tangent positions of the main roller 12 and the first film 14. In this embodiment, α is approximately 60°.

[0039] Optionally, the portion of the second film 25 between the second unwinding roller 21 and the first intermediate roller 22 is arranged in parallel with the portion of the second film 25 between the second winding roller 24 and the second intermediate roller 23, which can ensure the overall aesthetics of the second transfer assembly 20 and minimize the occupied space of the second transfer assembly 20.

[0040] Optionally, the contact range between the second film 25 and the first intermediate roller 22 accounts for more than 1 / 3 of the circumferential side of the first intermediate roller 22, and the contact orientation between the second film 25 and the second intermediate roller 23 accounts for more than 1 / 3 of the circumferential side of the second intermediate roller 23, so that the tension of the second film 25 can play a certain role in driving the travel of the second film 25, ensuring that the first intermediate roller 22 and the second intermediate roller 23 are more labor-saving when traveling with the main roller 12.

[0041] In this embodiment, as Figure 4 shown, A = 1 / 2, that is, the portions of the first film 14 at both ends of the main roller 12 are parallel. With such a setting, it can not only ensure a large contact area between the first film 14 and the main roller 12, but also reasonably utilize the space to ensure that the occupied area of the first transfer assembly 10 is small.

[0042] Optionally, the diameter of the main roller 12 is D1, the diameter of the first intermediate roller 22 is D2, and the diameter of the second intermediate roller 23 is D3, where D1 ≥ 2*D2 and D1 ≥ 2*D3. Through the above settings, there is a long enough arc segment for arranging the first intermediate roller 22 and the second intermediate roller 23. Furthermore, there is enough space to arrange some devices in the middle position between the first intermediate roller 22 and the second intermediate roller 23 that can improve the adhesion of the second film 25, such as a heating device or an ultraviolet irradiation device, etc., to ensure that the second film 25 can stick the two-dimensional material off the first film 14.

[0043] Optionally, the first unwinding roller 11, the first winding roller 13, the second unwinding roller 21, and the second winding roller 24 are all fixed torque rollers. That is, the film tension in the corresponding section is kept constant. Exemplarily, if the torque tension is set to 20 N, the tension of the first film 14 in the section before the main roller 12 is 20 N at this time. If the pulling force exceeds 20 N, the first unwinding roller 11 starts to unwind; if the pulling force is less than 20 N, the first unwinding roller 11 remains stationary. In both cases, the tension of the first film 14 can be kept constant at 20 N, ensuring that the force on the first film 14 is relatively constant.

[0044] Optionally, the distance between the first intermediate roller 22 and the main roller 12 is adjustable, and the distance between the second intermediate roller 23 and the main roller 12 is adjustable. Through the above settings, during the debugging process, the distance between the first intermediate roller 22 and the main roller 12 can be appropriately adjusted to ensure that the pressure between the two can transfer the two-dimensional material, and then it can be fixed. The transfer pressures corresponding to different materials or different batches of two-dimensional materials may be different. With the above settings, the pressures of the first intermediate roller 22 and the second intermediate roller 23 on the main roller 12 can be adjusted adaptively. At the same time, during the debugging process, the first intermediate roller 22 and the second intermediate roller 23 can be completely separated from the main roller 12 for separate debugging.

[0045] Optionally, as Figure 3 and Figure 4 shown, a first release film 251 is attached to one side of the second film 25. The second transfer assembly 20 further includes a first release film winding roller 26. The first release film 251 is wound on the first release film winding roller 26 between the second unwinding roller 21 and the first intermediate roller 22. It can be understood that when the second unwinding roller 21 is in the core state, a layer of first release film 251 is attached to each layer of the second film 25 to ensure that the second film 25 is easily torn when unwound. Before entering the first intermediate roller 22, the first release film 251 needs to be torn off to expose the adhesive surface of the second film 25 for bonding and transferring the two-dimensional material.

[0046] Optionally, as Figure 4 shown, the second transfer assembly 20 further includes a first guide roller 27. The first guide roller 27 abuts against the first release film 251 extending from the second unwinding roller 21, and the first release film 251 is wound on the first release film winding roller 26 after passing through the first guide roller 27. Through the above settings, the first guide roller 27 guides the winding of the first release film 251 to prevent the position of the first release film 251 from being unfixed when it is peeled off.

[0047] Optionally, as Figure 4 shown, the second transfer assembly 20 further includes a second release film 252 and a second release film unwinding roller 28. The second release film 252 extends from the second release film unwinding roller 28 and adheres to the second film 25 between the second intermediate roller 23 and the second winding roller 24. It can be understood that if the second film 25 is directly wound after extending from the second intermediate roller 23, the adjacent two layers of the second film 25 will still stick together. If separated, it will damage the two-dimensional material. Therefore, the second release film 252 is adhered to the second film 25 before winding to prevent the above situation from occurring.

[0048] Optionally, the second transfer assembly 20 further includes a second guide roller 29. The second guide roller 29 abuts against the second film 25 extending from the second intermediate roller 23, and the second release film 252 is attached to the second film 25 after passing through the second guide roller 29. Through the above arrangement, the second guide roller 29 guides the unwinding of the second release film 252 to prevent the position of the second release film 252 from being unfixed during unwinding.

[0049] In this embodiment, the debugging method of the two-dimensional material transfer device includes:

[0050] S10: Set the first unwinding roller 11, the main roller 12, and the first winding roller 13 in their respective positions. Insert the core of the first film 14 into the first unwinding roller 11, and extend the first film 14 to pass through the main roller 12 and then wind it up on the first winding roller 13. Run the main roller 12 until the first transfer assembly 10 runs smoothly, and then stop the rotation of the main roller 12.

[0051] S20: Set the second unwinding roller 21, the first intermediate roller 22, the second intermediate roller 23, and the second winding roller 24 in their respective positions without contacting the first transfer assembly 10. Insert the core of the second film 25 into the second unwinding roller 21, and extend the second film 25 to pass through the first intermediate roller 22 and the second intermediate roller 23 and then wind it up on the second winding roller 24. Manually rotate the second winding roller 24 to make the second transfer assembly 20 run smoothly.

[0052] S30: Press the first intermediate roller 22 and the second intermediate roller 23 against the main roller 12 to ensure that the pressure between the first intermediate roller 22 and the main roller 12 and the pressure between the second intermediate roller 23 and the main roller 12 are sufficient to transfer the two-dimensional material from the first film 14 to the second film 25.

[0053] S40: Run the main roller 12.

[0054] It can be understood that the main roller 12 is a driving roller, and both the first intermediate roller 22 and the second intermediate roller 23 are driven rollers. When the main roller 12 starts to rotate, since the contact area between the first film 14 and the main roller 12 is large, the first film 14 can be pulled forward under a very small film tension. Also because the contact area between the first film 14 and the main roller 12 is large, it can ensure the smoothness of the first film 14 during transmission. At this time, the transmission of the first film 14 is completely independent of the transmission of the second film 25 and does not interfere with each other. Therefore, the first transfer assembly 10 and the second transfer assembly 20 can be debugged separately. After the first intermediate roller 22 and the second intermediate roller 23 are abutted against the main roller 12, the pressure meets the transfer conditions of the two-dimensional material. This force generally can be satisfied after 2 to 3 adjustments according to experience, and most of the time, it can be transferred successfully at one time, greatly improving the debugging speed.

[0055] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A two-dimensional material transfer device, characterized in that: include: A first transfer component (10) comprises a first unwinding roller (11), a main roller (12), a first winding roller (13) and a first film (14), wherein a two-dimensional material is attached to one side of the first film (14), the first film (14) extends from the first unwinding roller (11), passes through the main roller (12) and is wound on the first winding roller (13), and the proportion of the contact range between the first film (14) and the peripheral side of the main roller (12) to the peripheral side of the main roller (12) is A, and 1 / 3≤A≤2 / 3; The second transfer component (20) comprises a second unwinding roller (21), a first intermediate roller (22), a second intermediate roller (23), a second winding roller (24) and a second film (25). The second film (25) extends from the second unwinding roller (21), passes through the first intermediate roller (22) and the second intermediate roller (23) in sequence, and is wound on the second winding roller (24). The first intermediate roller (22) and the second intermediate roller (23) are both in contact with the portion of the main roller (12) bonded with the first film (14) to transfer the two-dimensional material to the second film (25).

2. The two-dimensional material transfer device according to claim 1, characterized in that: The diameter of the main roller (12) is D1, the diameter of the first intermediate roller (22) is D2, the diameter of the second intermediate roller (23) is D3, D1≥2*D2 and D1≥2*D3.

3. The two-dimensional material transfer device according to claim 1, characterized in that: The first unwinding roller (11), the first winding roller (13), the second unwinding roller (21) and the second winding roller (24) are all fixed torque rollers.

4. The two-dimensional material transfer device according to any one of claims 1 to 3, characterized in that: The distance between the first intermediate roller (22) and the main roller (12) is adjustable, and the distance between the second intermediate roller (23) and the main roller (12) is adjustable.

5. The two-dimensional material transfer device according to claim 1, characterized in that: The first intermediate roller (22) and the main roller (12) are tangent at point M, the second intermediate roller (23) and the main roller (12) are tangent at point N, and on the circumferential side of the main roller (12), the central angle corresponding to the arc MN is α, 0°<α≤180°.

6. The two-dimensional material transfer device according to any one of claims 1 to 3, characterized in that: A first release film (251) is attached to one side of the second film (25), and the second transfer component (20) also includes a first release film winding roller (26), and the first release film (251) is wound on the first release film winding roller (26) between the second unwinding roller (21) and the first intermediate roller (22).

7. The two-dimensional material transfer device according to claim 6, characterized in that: The second transfer assembly (20) further comprises a first guide roller (27), wherein the first guide roller (27) abuts against the first release film (251) extending from the second unwinding roller (21), and the first release film (251) is wound up by the first release film winding roller (26) after passing through the first guide roller (27).

8. The two-dimensional material transfer device according to any one of claims 1 to 3, characterized in that: The second transfer assembly (20) further comprises a second release film (252) and a second release film unwinding roller (28), wherein the second release film (252) extends from the second release film unwinding roller (28) and is bonded to the second film (25) between the second intermediate roller (23) and the second winding roller (24).

9. The two-dimensional material transfer device according to claim 8, characterized in that: The second transfer assembly (20) further comprises a second guide roller (29), wherein the second guide roller (29) abuts against the second film (25) extending from the second intermediate roller (23), and the second release film (252) is bonded to the second film (25) after passing through the second guide roller (29).

10. The two-dimensional material transfer device according to any one of claims 1 to 3, characterized in that: The first film (14) between the first unwinding roller (11) and the main roller (12) is parallel to the first film (14) between the first winding roller (13) and the main roller (12); and / or The second film (25) between the second unwinding roller (21) and the first intermediate roller (22) is parallel to the second film (25) between the second winding roller (24) and the second intermediate roller (23).

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