Roll-to-roll feeding structure

By designing gravity wheel to adjust tension and CCD deviation correction cutting in roll-to-roll production, the problems of unstable feeding and inaccurate cutting of CVL material rolls are solved, stable feeding and high-precision cutting are achieved, and equipment costs are reduced.

CN223291961UActive Publication Date: 2025-09-02SHENZHEN BANGZHENG PRECISION MACHINERY CO LTD
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Patent Information

Application Number
CN202422804363.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-09-02
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

In roll-to-roll production, the pulling force of the CVL material roll causes unstable feeding, which may cause wrinkles or breaks, and inaccurate cutting.

Method used

A roll-to-roll feeding structure is designed, including feeding, cutting and collecting structures, using gravity wheels to adjust tension, equipped with cutting knife and CCD photo correction functions to ensure feeding stability and cutting accuracy.

Benefits of technology

It realizes the stability of feeding and the continuous cutting, improves work efficiency and cutting accuracy, and is suitable for CVL rolls of various specifications, reducing equipment investment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a roll-to-roll feeding structure which comprises a lower rack combination and further comprises a feeding structure and a cutting structure, the feeding structure is used for being connected with a CVL and comprises a CVL feeding shaft arranged on the lower rack combination, the CVL feeding shaft is connected with the CVL, and the cutting structure is used for cutting the CVL transferred by the feeding structure. Wherein the cutting structure comprises a cutting knife supporting plate arranged at the top of the lower rack combination and a cutting knife mechanism arranged on the cutting knife supporting plate, and a cutting knife air cylinder is arranged on the cutting knife mechanism. The roll-to-roll feeding structure has many remarkable advantages, the gravity wheel is arranged, tension can be effectively adjusted in the feeding process, so that the situation that a CVL material roll is too tight or too loose is prevented, the arranged cutter can rapidly cut the CVL material, time is greatly saved, the arranged CCD and the arranged deviation rectifying mechanism can conduct photographing deviation rectifying at first, and therefore the CVL material roll is prevented from being too tight or too loose. And then cutting is conducted, it is guaranteed that cutting is not deviated through the operation, and the cutting precision and quality are greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of FPC cover film feeding devices, in particular to a roll-to-roll feeding structure. Background Art

[0002] Flexible printed circuits (FPCs) are highly reliable and flexible printed circuit boards (PCBs). They feature high wiring density, light weight, thinness, good bendability, and excellent electrical properties, leading to their increasing application. However, in production, to prevent oxidation and corrosion of the copper foil, areas that do not require gold plating must be covered with CVL. This protects the circuits from dust, dirt, and static electricity, shielding them from exposure to air and preventing oxidation and corrosion of the copper foil.

[0003] During roll-to-roll CVL cover film lamination, the carrier tape exerts a pulling force on the CVL roll during loading and unloading. During feeding, the roll must be kept neat and wrinkles or even breakage must be avoided. During cutting, the cut must be accurate and not misaligned. Therefore, ensuring the flatness of the roll, reducing the pull of the gravity wheel on the carrier tape, and ensuring accurate cutting have become urgent challenges that need to be addressed. Utility Model Content

[0004] The purpose of the present invention is to provide a roll-to-roll feeding structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a roll-to-roll feeding structure, comprising:

[0006] A feeding structure, the feeding structure is used to connect with the CVL, including a CVL feeding shaft provided on the lower frame assembly, and the CVL is mounted on the CVL feeding shaft;

[0007] A cutting structure for cutting the CVL transferred by the loading structure, wherein the cutting structure includes a cutting blade support plate provided on the lower frame assembly, and a cutting mechanism provided on the cutting blade support plate, wherein the cutting mechanism is provided with a cutting blade cylinder, wherein the cutting blade cylinder drives the cutting mechanism to cut the CVL, wherein a CCD motion module is provided on the cutting blade support plate, wherein a light source emitter and an optical camera are mounted on the CCD motion module, wherein the light source emitter and the optical camera are used to photograph and position the CVL;

[0008] The material receiving structure includes a bottom film reel, which is connected to a main motor and collects the bottom film.

[0009] Preferably, a cutting deviation correction motor is provided at the bottom of the cutter support plate, which is used to adjust the position of the cutter mechanism after the light source emitter and the optical camera deviate from the positioning of the CVL.

[0010] Preferably, the lower frame assembly is further provided with a rear pressing plate and a rear rolling shaft, and the rear pressing plate and the rear rolling shaft are used to press and level the CVL.

[0011] Preferably, the CVL includes a CVL protective film, a CVL bottom film and a CVL sheet, wherein the CVL protective film is located on the upper part of the CVL sheet, the CVL bottom film is located below the CVL sheet, and the CVL sheet is in the middle.

[0012] Preferably, the lower frame assembly is further connected with a rubber-coated roller, a gravity guide shaft 1, a gravity guide shaft 2, a protective film reel and a loading gravity tensioning wheel, which are used to guide the CVL;

[0013] The lower frame assembly is also provided with a front rolling shaft 1, a front rolling shaft 2 and a front pressing plate. The front rolling shaft 1 and the front rolling shaft 2 are used to steer the CVL, and the front pressing plate is used to flatten the CVL.

[0014] Preferably, the feeding structure further includes a sticky wheel and sticky paper provided on the lower frame assembly, which are used to remove dust from the CVL.

[0015] Preferably, the lower frame assembly is further provided with a peeling roller and a peeling follower wheel, the peeling roller is used to peel and separate the CVL and the CVL bottom film, and the peeling follower wheel is used to guide the CVL bottom film after peeling onto the bottom film reel.

[0016] Preferably, the lower frame assembly is also provided with a CVL material taking turntable and a clamping plate gantry bracket, and the clamping plate gantry bracket is provided with a clamping plate, a finger cylinder and a clamping plate motion module. When the CVL material sheet passes through the peeling roller, the CVL material sheet will be separated from the CVL base film, and the clamping plate will move horizontally to the peeling roller position through the clamping plate motion module, and the finger cylinder will clamp the CVL material sheet and drag it to the required length. After cutting, the finger cylinder will clamp the cut CVL material sheet and place it on the CVL material taking turntable.

[0017] Preferably, a guide shaft tensioning slide rail and a gravity wheel sensor are further provided on the left side of the lower frame assembly, which are used to guide and transfer the sheet.

[0018] Preferably, the material collection structure further includes a bottom film collection rolling wheel and a film collection gravity tensioning wheel provided on the right side of the lower frame assembly, which are used to collect the CVL bottom film.

[0019] Compared with the existing technology, the beneficial effects of the present invention are: the roll-to-roll feeding structure has many significant advantages. First, it is equipped with a gravity wheel, which can effectively adjust the tension during the feeding process, thereby preventing the CVL material roll from being too tight or too loose. This design ensures the stability and continuity of feeding, and lays a solid foundation for subsequent processing links. Secondly, the equipped cutter can quickly cut the CVL material, which greatly saves time and significantly improves work efficiency. Furthermore, the set CCD can take pictures and correct the deviation before cutting. This operation ensures that the cutting is not offset and greatly improves the accuracy and quality of cutting. Finally, the device is applicable to CVL material rolls of various specifications and has strong versatility. This means that companies do not need to purchase different equipment for rolls of different specifications, reducing equipment investment costs and improving equipment utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the structure of the utility model;

[0021] Figure 2 It is a side view of the structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the deviation correction and cutting of the structure of the utility model.

[0023] Figure: 1. Lower frame assembly; 2. Rubber-coated roller; 3. Gravity guide shaft 1; 4. CVL protective film; 5. Gravity guide shaft 2; 6. Protective film reel; 7. CVL feed shaft; 8. Front rolling shaft 1; 9. Front rolling shaft 2; 10. Front pressure plate; 11. Peeling roller; 12. CVL reel; 13. Clamping plate; 14. Finger cylinder; 15. Rear pressure plate; 16. Rear rolling shaft; 17. Bottom film reel; 18. CVL bottom film; 19. Bottom film reel Shaft; 20. Peeling follower wheel; 21. Cutter support plate; 22. Clamping plate motion module; 23. Clamping plate gantry bracket; 24. Film winding gravity tensioning wheel; 25. Guide shaft tensioning slide; 26. Gravity wheel sensor; 27. Light source emitter; 28. Optical camera; 29. ​​Cutter cylinder; 30. Sticky paper; 31. Loading gravity tensioning wheel; 32. Sticky wheel; 33. Cutting correction motor; 34. Cutter mechanism; 35. CCD motion module; 36. CVL sheet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 The utility model provides a technical solution: a roll-to-roll feeding structure, including a lower frame assembly 1, and also including:

[0026] The feeding structure is used to install the CVL, so as to wind it and guide it to the top of the lower frame assembly 1 to cut the CVL. The feeding structure is used to connect with the CVL, including a CVL feeding shaft 7 provided on the lower frame assembly 1. The CVL feeding shaft 7 is used to connect with the CVL, and the CVL feeding shaft 7 and the bottom film reel 19 cooperate to move, thereby achieving the feeding effect. The CVL feeding shaft 7 is connected to the CVL, and the CVL feeding shaft 7 and the bottom film reel 19 rotate in coordination, thereby driving the CVL to discharge the feeding material outward. The lower frame assembly 1 is also connected with a rubberized roller 2 and a gravity guide roller. Axis 1 3, gravity guide shaft 2 5, protective film reel 6 and loading gravity tensioning wheel 31, rubber-coated roller 2 and gravity guide shaft 1 3 and gravity guide shaft 2, which are used to guide and tension the CVL material roll, 5, and the CVL protective film 4 is wound off by rotating the protective film reel 6. The protective film reel 6, CVL feeding shaft 7 and bottom film reel 19 are all driven by a motor to drive the material roll to rotate and unload the material and take up the film. The power required for the entire mechanism is provided by the bottom film reel 19 and the CVL feeding shaft 7 feeding shaft motor. The CVL protective film 4 is wound on the gravity guide shaft 1 3 and is tensioned by sliding the film taking-up gravity tensioning wheel 24 up and down.

[0027] like Figure 1 、 2 As shown, the lower frame assembly 1 is also provided with a front rolling shaft 8, a front rolling shaft 2 9 and a front pressing plate 10. The front rolling shaft 18, the front rolling shaft 2 9, the peeling follower wheel 20, and the bottom film rolling wheel 17 play the role of correction and guidance, and assist operation. The front pressing plate 10 and the rear pressing plate 15 press the CVL sheet 36 to make it flat. The front rolling shaft 18 and the front rolling shaft 2 9 are used to assist the CVL in steering. The front pressing plate 10 is used to flatten the CVL. The feeding structure also includes a sticky wheel 32 and a sticky paper 30 provided on the lower frame assembly 1. The CVL sheet 36 is wound around the sticky wheel 32. When feeding, dust that may exist on the CVL is adhered to. The dust on the sticky wheel 32 is taken away by the sticky paper 30 to ensure that the surface of the CVL sheet 36 is dust-free. It is used to remove dust from the CVL.

[0028] The left side of the lower frame assembly 1 is also provided with a guide shaft tensioning slide rail 25 and a gravity wheel sensor 26. The gravity wheel sensor 26 is installed on the bracket. The sensor determines whether material discharging is required. The gravity wheel sensor 26 senses the CVL feed shaft 7 to discharge the material, which is used to transfer the loading structure.

[0029] The lower frame assembly 1 is also provided with a CVL material picking turntable 12 and a clamping plate gantry bracket 23. The CVL material sheet 36 is placed on the CVL material picking turntable 12 and waits for material picking. The clamping plate gantry bracket 23 is provided with a clamping plate 13, a finger cylinder 14 and a clamping plate motion module 22. When the CVL material sheet 36 passes through the peeling roller 11, the CVL material sheet 36 will be separated from the CVL base film 18. The clamping plate 13 moves horizontally to the position of the peeling roller 11 through the clamping plate motion module 22. The finger cylinder 14 clamps the CVL material sheet 36 and drags it to the required length. After cutting, the finger cylinder 14 clamps the cut CVL material sheet 36 and places it on the CVL material picking turntable 12.

[0030] The lower frame assembly 1 is also provided with a peeling roller 11 and a peeling follower wheel 20. The rotation of the peeling roller 11 and the peeling follower wheel 20 is achieved by pulling and rotating the bottom film reel 19 using the CVL bottom film 18. The peeling roller 11 is used to peel the CVL sheet 36 from the CVL bottom film 18, thereby achieving the film peeling effect. The peeling roller 11 is used to peel the CVL, and the peeling follower wheel 20 is used to guide the CVL bottom film 18 after peeling and guide it to the bottom film reel 19.

[0031] The cutting structure is used to cut the CVL transferred from the loading structure, wherein the cutting structure includes a cutting knife support plate 21 arranged on the top of the lower frame assembly 1, the cutting knife support plate 21 is used to support the cutting knife mechanism 34, and the cutting knife mechanism 34 arranged on the cutting knife support plate 21. When the cutting knife mechanism 34 moves, the cutting deviation correction motor 33 is corrected, the bottom film reel 19 and the CVL feeding shaft 7 stop running, the front pressing plate 10 and the rear pressing plate 15 press the CVL material 36 to make it flat, and the cutting knife mechanism 34 is provided with a cutting knife. Cylinder 29, the cutter cylinder 29 drives the cutting mechanism 34 to cut the CVL, and the cutting support plate 21 is provided with a CCD motion module 35. The CCD motion module 35 is provided with a light source emitter 27 and an optical camera 28. The light source emitter 27 and the optical camera 28 are used to position and correct the CVL. The optical camera 28 takes pictures and positions the CVL sheet 36 along the CCD motion module 35. The cutting and correction motor 33 will drive the cutting mechanism 34 to move to the corresponding position according to the results of the picture to ensure that it is not offset during cutting.

[0032] like Figure 3 As shown, a cutting correction motor 33 is provided at the bottom of the cutter support plate 21. When the cutting correction motor 33 moves for correction, the bottom film reel 19 motor and the CVL feed shaft 7 stop running. It is used to adjust the position of the cutter mechanism 34 after the light source emitter 27 and the optical camera 28 deviate from the CVL positioning. A rear pressing plate 15 and a rear rolling shaft 16 are also provided on the lower frame assembly 1. The rear pressing plate 15 and the rear rolling shaft 16 are used to press and level the CVL.

[0033] The material receiving structure includes a base film reel 19, which is connected to the main motor. The base film reel 19 collects the remaining material after cutting. The CVL material sheet 36 is wound around the loading gravity tensioning wheel 31, the front rolling shaft 1 8 and the front rolling shaft 2 9. The motor of the base film reel 19 rotates to provide power to make it rotate. When it moves past the peeling roller 11, the CVL material sheet 36 and the CVL base film 18 are separated.

[0034] CVL includes a CVL protective film 4, a CVL bottom film 18 and a CVL material sheet 36. The CVL protective film 4 is located on the upper part of the CVL material sheet 36, the CVL bottom film 18 is located below the CVL material sheet 36, and the CVL material sheet 36 is in the middle. The material collection structure also includes a bottom film collection rolling wheel 17 and a film collection gravity tensioning wheel 24 arranged on the right side of the lower frame assembly 1, which are used to collect the bottom film.

[0035] When the roll-to-roll feeding structure is in use, when the device is running, the bottom film reel 19 motor rotates, the CVL feeding shaft 7 feeding shaft motor rotates together, the CVL protective film 4 protective film is wound on the gravity guide shaft 1 3 and the gravity guide shaft 2 5, and the CVL protective film 4 is taken up by the rotation of the protective film reel 6, and the CVL material sheet 36 is wound on the feeding gravity tensioning wheel 31 and the front rolling shaft 1 8 and the front rolling shaft 2 9. The bottom film reel 19 motor rotates to provide power to make it rotate, and the bottom film rolling wheel 17 and the film gravity tensioning wheel 24 guide and tension the CVL bottom film 18. When it moves through the peeling roller 11, the CVL material sheet 36 and the CVL bottom film 18 are peeled off. At this time, the clamping plate 13 moves horizontally to the peeling roller 11 position through the clamping plate movement module 22, and the finger cylinder 14 clamps the CVL material sheet 36 and drags it to the required length. The machine stops running, the front pressing plate 10 and the rear pressing plate 15 press the CVL material 36 to make it flat, the optical camera 28 takes a picture of the MARK point on the CVL material 36 along the CCD motion module 35, and the light source emitter 27 is turned on synchronously. After taking the picture, the cutting and correcting motor 33 will drive the cutting mechanism 34 to the relevant position according to the picture results to ensure that it is not offset during cutting. Then the cutter cylinder 29 drives the cutting mechanism 34 to move and cut the CVL material 36 to the required length. The finger cylinder 14 clamps the cut CVL material 36 and moves back through the clamping plate motion module 22 to place the CVL material 36 on the CVL material taking turntable 12, waiting for the material to be taken, the finger cylinder 14 returns to its original position, the front pressing plate 10 and the rear pressing plate 15 are released, the bottom film reel 19 motor CVL feed shaft 7 motor starts to run and feed, and the lower frame assembly 1 repeats the movement in a cycle.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roll-to-roll feeding structure, comprising a lower frame assembly (1), characterized in that: Also includes: A feeding structure, the feeding structure is used to connect with the CVL, and includes a CVL feeding shaft (7) provided on the lower frame assembly (1), the CVL feeding shaft (7) being connected to the CVL; A cutting structure for cutting the CVL transferred by the feeding structure, wherein the cutting structure comprises a cutting blade support plate (21) arranged on the top of the lower frame assembly (1), and a cutting mechanism (34) arranged on the cutting blade support plate (21), wherein the cutting mechanism (34) is provided with a cutting blade cylinder (29), and the cutting blade cylinder (29) drives the cutting mechanism (34) to cut the CVL, and the cutting blade support plate (21) is provided with a CCD motion module (35), and the CCD motion module (35) is provided with a light source emitter (27) and an optical camera (28), and the light source emitter (27) and the optical camera (28) are used for photographing and positioning the CVL; The material collecting structure comprises a bottom film reel (19), wherein the bottom film reel (19) is connected to a main motor and the bottom film reel (19) collects the bottom film.

2. The roll-to-roll feeding structure according to claim 1, characterized in that: A cutting deviation correction motor (33) is provided at the bottom of the cutter support plate (21), which is used to adjust the position of the cutter mechanism (34) after the light source emitter (27) and the optical camera (28) deviate from the CVL photographing positioning.

3. The roll-to-roll feeding structure according to claim 2, characterized in that: The lower frame assembly (1) is also provided with a rear pressing plate (15) and a rear rolling shaft (16), and the rear pressing plate (15) and the rear rolling shaft (16) are used for pressing and leveling the CVL.

4. The roll-to-roll feeding structure according to any one of claims 1 to 3, characterized in that: The CVL comprises a CVL protective film (4), a CVL bottom film (18) and a CVL sheet (36), wherein the CVL protective film (4) is arranged on the upper part of the CVL sheet (36), the CVL bottom film (18) is located below the CVL sheet (36), and the CVL sheet (36) is in the middle.

5. The roll-to-roll feeding structure according to claim 1, characterized in that: The lower frame assembly (1) is also connected to a rubber-coated roller (2), a gravity guide shaft 1 (3), a gravity guide shaft 2 (5), a protective film reel (6) and a loading gravity tension wheel (31), which are used to guide the CVL; The lower frame assembly (1) is also provided with a front rolling shaft (8), a front rolling shaft (9) and a front pressing plate (10). The front rolling shaft (8) and the front rolling shaft (9) are used to steer the CVL, and the front pressing plate (10) is used to flatten the CVL.

6. The roll-to-roll feeding structure according to claim 1 or 5, characterized in that: The feeding structure further comprises a dust-sticking wheel (32) and a dust-sticking paper (30) provided on the lower frame assembly (1), which are used for removing dust from the CVL.

7. The roll-to-roll feeding structure according to claim 1, characterized in that: The lower frame assembly (1) is further provided with a peeling roller (11) and a peeling follower wheel (20), wherein the peeling roller (11) is used to peel and separate the CVL and the CVL base film (18), and the peeling follower wheel (20) is used to guide the peeled CVL base film (18) onto the base film reel (19).

8. The roll-to-roll feeding structure according to claim 1, characterized in that: The lower frame assembly (1) is further provided with a CVL material taking transfer table (12) and a clamping plate gantry bracket (23); the clamping plate gantry bracket (23) is provided with a clamping plate (13), a finger cylinder (14) and a clamping plate motion module (22).

9. The roll-to-roll feeding structure according to claim 1, characterized in that: The left side of the lower frame assembly (1) is also provided with a guide shaft tensioning slide rail (25) and a gravity wheel sensor (26), which are used to tension the CVL protective film (4).

10. The roll-to-roll feeding structure according to claim 1, characterized in that: The material collecting structure further comprises a bottom film collecting rolling wheel (17) and a film collecting gravity tensioning wheel (24) arranged on the right side of the lower frame assembly (1), which are used to collect the CVL bottom film (18).