Novel feeding equipment

By integrating the protective film winding structure into the movable baffle of the unwinding roller in the aluminum plate unwinding equipment, the unwinding of the aluminum plate and the winding of the protective film are synchronized by using movable components and a bevel gear system. This solves the problems of complex equipment structure and high operation requirements, and achieves automatic synchronization and improved stability.

CN224242315UActive Publication Date: 2026-05-15SUZHOU BAOLUO MASCH ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU BAOLUO MASCH ENG CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing aluminum sheet unwinding equipment has a complex structure and requires the aluminum sheet unwinding roller and the protective film take-up roller to operate synchronously, which places high demands on operation.

Method used

The protective film winding structure is integrated into the movable baffle of the unwinding roller. The unwinding of the aluminum plate and the winding of the protective film are synchronized through the movable components and bevel gear system. The position of the film roll holder is adjusted by the guide rail and the lead screw, and the winding speed of the protective film is dynamically adjusted to adapt to the change of aluminum roll diameter.

Benefits of technology

The equipment structure has been simplified, the operating requirements have been reduced, and automatic synchronization of aluminum sheet unwinding and protective film winding has been achieved, thus improving the equipment's versatility and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224242315U_ABST
    Figure CN224242315U_ABST
Patent Text Reader

Abstract

The utility model relates to novel feeding equipment, and relates to the technical field of aluminum plate unwinding, the novel feeding equipment comprises a rack, an unwinding roller is rotatably arranged on the rack, a fixed baffle is fixedly arranged at the end, close to the rack, of the unwinding roller, and a movable baffle is detachably connected to the end, away from the rack, of the unwinding roller; the side, away from the fixed baffle, of the movable baffle is provided with at least two connecting blocks, and the connecting blocks are evenly distributed in the circumferential direction of the movable baffle at intervals. The connecting block is provided with a film rolling frame extending in the direction away from the axis of the unwinding roller, all the film rolling frames are used for jointly rolling a protective film, a restraining groove is formed in the end, away from the connecting block, of each film rolling frame, and the film rolling frames abut against the protective film in the restraining grooves. The device has the effects that the operation requirement of equipment is lowered, and aluminum plate unwinding and protective film winding are conducted synchronously.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of aluminum sheet uncoiling technology, and in particular to a novel feeding device. Background Technology

[0002] Before use, aluminum sheets are generally processed into coils by a winding machine to form aluminum coils, thereby facilitating transportation and storage. When using aluminum sheets, aluminum sheet loading equipment is needed for unwinding, leveling and other operations.

[0003] In related technologies, in order to minimize wear caused by mutual friction between aluminum sheets on aluminum coils, a protective film is often attached to one side of the aluminum sheet. Therefore, when unwinding the aluminum sheet, an additional take-up roller is needed to take up the protective film. However, the unwinding of the aluminum sheet and the take-up of the protective film are completed by different rollers, which makes the equipment structure complex. Furthermore, it is necessary to keep the aluminum sheet unwinding roller and the protective film take-up roller running synchronously, which increases the operational requirements. Utility Model Content

[0004] In order to reduce the operational requirements of the equipment and achieve the simultaneous unwinding of aluminum sheets and rewinding of protective films, this application provides a novel feeding device.

[0005] The novel feeding device provided in this application adopts the following technical solution:

[0006] A novel feeding device includes a frame, on which an unwinding roller is rotatably mounted. A fixed baffle is fixedly mounted at one end of the unwinding roller near the frame, and a movable baffle is detachably connected at the end of the unwinding roller away from the frame. At least two connecting blocks are provided on the side of the movable baffle away from the fixed baffle, and all the connecting blocks are evenly and spaced apart along the circumference of the movable baffle. A film winding frame is provided on each connecting block, extending in a direction away from the axis of the unwinding roller. All the film winding frames are used to jointly wind a protective film. A constraint groove is provided at the end of the film winding frame away from the connecting block, and the film winding frame abuts against the protective film in the constraint groove.

[0007] By adopting the above technical solution, the winding structure of the protective film is integrated into the movable baffle of the unwinding roller. When the unwinding roller rotates, on the one hand, the aluminum coil rotates in the unwinding direction, and the aluminum plate detaches from the aluminum coil. On the other hand, the protective film detached from the aluminum coil is wound together by all the film rolls and constrained by the constraint groove, ensuring the stability of the protective film winding on all the film rolls. This allows the unwinding of the aluminum plate and the winding of the protective film to be driven by the same unwinding roller, reducing the number of rollers used for winding in the equipment, simplifying the equipment structure, and eliminating the need to specifically maintain the synchronous operation of the aluminum plate unwinding roller and the protective film winding roller, thus reducing the operational requirements.

[0008] Preferably, the movable baffle has at least two guide rails fixed on the end face away from the fixed baffle. The guide rails are arranged radially along the unwinding roller. The connecting blocks correspond one-to-one with the guide rails and are slidably connected to the guide rails. The movable baffle is also provided with a movable component for driving the connecting blocks to slide.

[0009] By adopting the above technical solution, the movable component drives the connecting block to slide along the guide rail, so that the position of the connecting block can be adjusted according to actual needs to adjust the distance from the constraint groove on the film roll frame to the axis of the unwinding roller, so as to adapt to aluminum rolls of different diameters, and match the length of the aluminum plate unwound in one rotation of the aluminum roll with the length of the protective film wound in one rotation of the film roll frame around the unwinding roller, thereby increasing the versatility of the equipment, and ensuring the stability of the film roll frame when winding the protective film after the position is adjusted.

[0010] Preferably, the movable component includes a lead screw and a fixed plate, the fixed plate is fixedly connected to the movable baffle, the lead screw is rotatably connected to the fixed plate, and the lead screw is threadedly engaged with the connecting block.

[0011] By adopting the above technical solution, when the lead screw is rotated, the lead screw is threadedly engaged with the connecting block, and the connecting block is slidably connected to the guide rail, which restricts the connecting block to move only along the direction of the guide rail. This converts the rotation of the lead screw into the linear sliding of the connecting block along the guide rail, thereby adjusting the position of the film roll frame and ensuring that the speed of winding the protective film and unwinding the aluminum sheet are matched.

[0012] Preferably, the movable component further includes a first bevel gear, a second bevel gear, and a fixing member. The first bevel gear is coaxial with and fixedly connected to the lead screw. The second bevel gear coincides with the axis of the unwinding roller. The second bevel gear is rotatably connected to the movable baffle. The second bevel gear meshes with all the first bevel gears. The fixing member is used to prevent the second bevel gear from rotating with the unwinding roller.

[0013] As the aluminum coil unwinds, its diameter decreases, and less aluminum sheet and protective film are released with each rotation. Meanwhile, as the coil rewinds, the length of protective film required to wrap around the film reel increases. At this point, the unwinding speed of the aluminum sheet and the rewinding speed of the protective film are mismatched, and the gap widens. By adopting the above technical solution, the fixing component prevents the second bevel gear from rotating with the unwinding roller. The rotation of the unwinding roller will drive the first bevel gear to rotate around the second bevel gear. The second bevel gear meshes with each of the first bevel gears, causing the first bevel gears to rotate synchronously. This, in turn, drives the lead screw coaxial with the first bevel gear to rotate. The rotation of the lead screw drives the connecting block to slide along the guide rail towards the axis of the unwinding roller. The film roll also moves closer to the axis of the unwinding roller. The length of the protective film wound by the film roll in one revolution around the unwinding roller is reduced accordingly. This dynamically adjusts the winding speed of the protective film, keeping the winding speed of the protective film matched with the gradually decreasing unwinding speed of the aluminum plate due to the smaller diameter of the aluminum roll. The entire process does not require frequent manual adjustments. The rotation of the unwinding roller of the equipment drives the position of the connecting block to change, realizing automatic adjustment of the winding speed and further simplifying the operation process.

[0014] Preferably, the fixing component includes a fixing sleeve, a telescopic rod, a connecting rod, and an insert block. The fixing sleeve is fixedly connected to the frame and is parallel to the axis of the unwinding roller. The telescopic rod is inserted into the fixing sleeve. The connecting rod is fixedly connected to the telescopic rod. The insert block is fixedly connected to the connecting rod. The second bevel gear has a slot on the side away from the movable baffle. The insert block is inserted into the slot and abuts against the slot.

[0015] By adopting the above technical solution, the operator inserts the insert block into the slot of the second bevel gear to connect the second bevel gear with the frame, thereby locking the second bevel gear and preventing it from rotating with the unwinding roller. At the same time, when it is necessary to remove the movable baffle, the telescopic rod is slid and the insert block is pulled out. The insert block will not obstruct the separation of the movable baffle from the unwinding roller.

[0016] Preferably, the fixing component further includes a locking pin, a first pin hole is provided through the side wall of the fixing sleeve, a second pin hole is provided on the side wall of the telescopic rod, and the locking pin is inserted into both the first pin hole and the second pin hole.

[0017] By adopting the above technical solution, when the insert block is inserted into the slot of the second bevel gear, the locking pin is simultaneously inserted into the first pin hole and the second pin hole, so that the position of the telescopic rod is fixed, thereby ensuring that the insert block is stably inserted into the slot, ensuring that the second bevel gear is reliably locked and will not loosen or rotate due to factors such as vibration during equipment operation, thus ensuring the stable realization of the automatic adjustment function of the protective film winding speed.

[0018] Preferably, a protective plate is fixedly provided on the movable baffle, and both the first bevel gear and the second bevel gear are located inside the protective plate.

[0019] By adopting the above technical solution, the guard plate can protect the first bevel gear and the second bevel gear, preventing external debris from entering between the first bevel gear and the second bevel gear, and especially preventing the protective film from accidentally contacting the first bevel gear and the second bevel gear, and then being wrapped between the first bevel gear and the second bevel gear, thereby causing equipment failure.

[0020] Preferably, an auxiliary roller is rotatably mounted on the frame. The auxiliary roller is used to press against the protective film and guide the protective film to move in the direction of detachment from the aluminum plate.

[0021] By adopting the above technical solution, when the unwinding roller rotates, the aluminum coil releases the aluminum plate and protective film. The aluminum plate enters the subsequent process, while the film winding frame rewinds and pulls the protective film. The protective film must pass around the auxiliary roller and be pressed against by the auxiliary roller, guiding the protective film to move in the direction of separating from the aluminum plate, so that the protective film and the aluminum plate can be reliably separated.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a movable baffle, connecting block, film roll frame, and constraint groove, the winding structure of the protective film is integrated on the movable baffle of the unwinding roller, so that the unwinding of the aluminum plate and the winding of the protective film are driven by the same unwinding roller. This reduces the number of rollers used for winding in the equipment, simplifies the equipment structure, and eliminates the need to keep the aluminum plate unwinding roller and the protective film winding roller running synchronously, reducing operational requirements. In addition, the constraint groove ensures the stability of the protective film winding.

[0024] 2. By setting guide rails, lead screws, and fixing plates, the rotation of the lead screw is converted into the linear sliding of the connecting block, which facilitates the adjustment of the distance from the constraint groove on the film roll frame to the axis of the unwinding roller, so as to adapt to aluminum rolls of different diameters and ensure that the speed of winding the protective film and unwinding the aluminum sheet are matched.

[0025] 3. By setting the first bevel gear, the second bevel gear, the fixed sleeve, the telescopic rod, the connecting rod, the insert block, and the slot, the winding speed of the protective film is dynamically adjusted so that the winding speed of the protective film matches the unwinding speed of the aluminum plate, which gradually decreases as the diameter of the aluminum coil decreases. This achieves automatic adjustment of the winding speed and further simplifies the operation process. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of a novel feeding device provided in the embodiments of this application.

[0027] Figure 2 yes Figure 1 Enlarged view of part A

[0028] Figure 3 This is a cross-sectional structural diagram of a novel feeding device provided in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Unwinding roller; 111. Fixed baffle; 2. Movable baffle; 21. Connecting block; 22. Film roll holder; 221. Constraint groove; 23. Guide rail; 24. Guard plate; 25. Auxiliary roller; 26. Guide roller; 3. Movable component; 31. Lead screw; 32. Fixed plate; 33. First bevel gear; 34. Second bevel gear; 341. Slot; 35. Fixing component; 351. Fixed sleeve; 3511. First pin hole; 352. Telescopic rod; 3521. Second pin hole; 353. Connecting rod; 354. Insert block; 355. Locking pin; 4. Aluminum coil; 41. Aluminum plate; 42. Protective film. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a novel feeding device. (Refer to...) Figures 1 to 3 The system includes a frame 1, with an unwinding roller 11 rotatably mounted on the side wall of the frame 1. A motor is also fixed on the frame 1, and the drive shaft of the motor is fixedly connected to the unwinding roller 11. The motor drives the unwinding roller 11 to rotate. A fixed baffle 111 is fixedly mounted on one end of the unwinding roller 11 near the frame 1, and a movable baffle 2 is detachably connected to the other end of the unwinding roller 11 away from the frame 1 via connecting bolts. Before unwinding the aluminum coil 4, the movable baffle 2 is removed, the aluminum coil 4 is installed on the unwinding roller 11, and then the movable baffle 2 is installed on the unwinding roller 11. The fixed baffle 111 and the constraint baffle limit and constrain both sides of the aluminum coil 4. The motor drives the unwinding roller 11 to rotate, thereby causing the aluminum coil 4 to rotate in the direction of releasing the aluminum plate 41.

[0032] Reference Figure 1 and Figure 3 The movable baffle 2 has at least two guide rails 23 fixed on the side away from the fixed baffle 111, and the guide rails 23 are arranged radially along the unwinding roller 11. The movable baffle 2 has at least two connecting blocks 21 on the side away from the fixed baffle 111, and the connecting blocks 21 correspond one-to-one with the guide rails 23, and the connecting blocks 21 slide on the guide rails 23. All connecting blocks 21 and guide rails 23 are evenly and spaced along the circumference of the movable baffle 2. The movable baffle 2 is also provided with a movable component 3, which is used to drive the connecting blocks 21 to slide. In this embodiment, there are two guide rails 23 and two connecting blocks 21. The connecting blocks 21 are fixed with film winding frames 22 extending in a direction away from the axis of the unwinding roller 11. All film winding frames 22 are used to jointly wind the protective film 42. The film winding frames 22 have a constraint groove 221 at the end away from the connecting blocks 21, and the film winding frames 22 abut against the protective film 42 in the constraint groove 221.

[0033] Reference Figure 1 An auxiliary roller 25 and a guide roller are rotatably mounted on the side wall of the frame 1. The auxiliary roller 25 is used to press against the protective film 42 and guide the protective film 42 in the direction of detachment from the aluminum plate 41. The guide roller has a guide groove in the circumferential direction. On the opposite axis of the unwinding roller 11, all the constraint grooves 221 and the center of the guide groove are located in the same vertical plane. The guide roller 26 is used to guide the protective film 42 to face the film winding frame 22.

[0034] Reference Figure 1 and Figure 3 As the unwinding roller 11 rotates, the aluminum plate 41 detached from the aluminum coil 4 and the protective film 42 pass over the auxiliary roller 25 together. The aluminum plate 41 enters the subsequent processing steps, while the protective film 42, guided by the auxiliary roller 25, moves away from the aluminum plate 41 and separates from its surface. The protective film 42, now away from the aluminum plate 41, is then guided by the guide roller and positioned directly opposite the film roll 22. The protective film 42 is wound together by all the film rolls 22 and constrained by the constraint groove 221, allowing the unwinding of the aluminum plate 41 and the winding of the protective film 42 to be driven by the same unwinding roller 11. The movable component 3 drives the connecting block 21 to slide along the guide rail 23 to adjust the distance from the constraint groove 221 on the film roll 22 to the axis of the unwinding roller 11, accommodating aluminum coils 4 of different diameters.

[0035] To automatically reduce the winding speed of the protective film 42, and to match the winding speed of the protective film 42 with the gradually decreasing unwinding speed of the aluminum plate 41 due to the decreasing diameter of the aluminum coil 4, refer to... Figure 1 and Figure 2 The movable component 3 includes a lead screw 31, a fixed plate 32, a first bevel gear 33, a second bevel gear 34, and a fixing member 35. The fixed plate 32 is fixedly connected to the movable baffle 2. The lead screw 31 is parallel to the guide rail 23 and rotatably connected to the fixed plate 32. The lead screw 31 is threadedly engaged with the connecting block 21. The first bevel gear 33 is coaxial with the lead screw 31 and fixedly connected. The second bevel gear 34 coincides with the axis of the unwinding roller 11 and is rotatably connected to the movable baffle 2 through a rotating shaft. The second bevel gear 34 meshes with all the first bevel gears 33. The fixing member 35 is used to prevent the second bevel gear 34 from rotating with the unwinding roller 11. A guard plate 24 is also fixedly installed on the movable baffle 2. The first bevel gear 33 and the second bevel gear 34 are both located inside the guard plate 24.

[0036] Reference Figure 1 and Figure 2The fixing member 35 prevents the second bevel gear 34 from rotating with the unwinding roller 11. The rotation of the unwinding roller 11 will drive the first bevel gear 33 to rotate around the second bevel gear 34. The second bevel gear 34 meshes with each of the first bevel gears 33, causing the first bevel gears 33 to rotate synchronously, which in turn drives the lead screw 31 coaxial with the first bevel gears 33 to rotate. The lead screw 31 drives the connecting block 21 to slide along the guide rail 23 towards the axis of the unwinding roller 11. The film roll 22 also moves closer to the axis of the unwinding roller 11. The length of the protective film 42 wound by the film roll 22 in one revolution around the unwinding roller 11 is reduced accordingly. This dynamically adjusts the winding speed of the protective film 42, so that the winding speed of the protective film 42 matches the gradually decreasing unwinding speed of the aluminum plate 41 due to the decreasing diameter of the aluminum coil 4. The guard plate 24 can prevent the protective film 42 from accidentally contacting the first bevel gear 33 and the second bevel gear 34, and thus being wrapped between the first bevel gear 33 and the second bevel gear 34, thereby causing equipment failure.

[0037] To facilitate fixing the second bevel gear 34 and thus prevent the second bevel gear 34 from rotating with the unwinding roller 11, refer to... Figures 1 to 3 The fixing component 35 includes a fixing sleeve 351, a telescopic rod 352, a connecting rod 353, an insert block 354, and a locking pin 355. The fixing sleeve 351 is fixedly connected to the frame 1 and is parallel to the axis of the unwinding roller 11. The telescopic rod 352 is inserted into the fixing sleeve 351. The connecting rod 353 is fixedly connected to the telescopic rod 352, and the insert block 354 is fixedly connected to the connecting rod 353. The second bevel gear 34 has a slot 341 on the side away from the movable baffle 2. The insert block 354 is inserted into the slot 341 and abuts against the slot 341. Specifically, the cross-sections of the insert block 354 and the slot 341 are both hexagonal. A first pin hole 3511 is formed through the side wall of the fixing sleeve 351, and a second pin hole 3521 is formed on the side wall of the telescopic rod 352. The locking pin 355 is inserted into both the first pin hole 3511 and the second pin hole 3521.

[0038] Reference Figures 1 to 3 When the insert block 354 is inserted into the slot 341 of the second bevel gear 34, the engagement of the insert block 354 and the slot 341 locks the second bevel gear 34, fixing it relative to the frame 1. Then, the locking pin 355 is simultaneously inserted into both the first pin hole 3511 and the second pin hole 3521, fixing the position of the telescopic rod 352 and ensuring that the insert block 354 is stably inserted into the slot 341. Simultaneously, when the movable baffle 2 needs to be removed, the locking pin 355 is pulled out, and the telescopic rod 352 is slid, moving the insert block 354 away from the second bevel gear 34. At this time, the insert block 354 will not obstruct the disengagement of the movable baffle 2 from the unwinding roller 11.

[0039] The implementation principle of a novel feeding device according to an embodiment of this application is as follows: When unwinding the aluminum coil 4, the unwinding roller 11 rotates, driving the aluminum coil 4 to rotate in the direction of releasing the aluminum plate 41. During the unwinding process, the aluminum plate 41 and the protective film 42 first detach from the aluminum coil 4 together and pass above the auxiliary roller 25. Then, the auxiliary roller 25 guides the protective film 42 to move in the direction of detaching from the aluminum plate 41. The separated aluminum plate 41 enters the subsequent processing steps, while the protective film 42 is guided by the guide roller to a position facing the film winding frame 22. The protective film 42 is finally wound around the film winding frame 22 on the movable baffle 2. The constraint groove 221 abuts against the protective film 42, constraining the winding of the protective film 42. This realizes that the unwinding of the aluminum plate 41 and the winding of the protective film 42 are driven by the same unwinding roller 11, simplifying the equipment structure and reducing the operation requirements.

[0040] In addition, the insert block 354 is inserted into the slot 341 to lock the second bevel gear 34. Therefore, when the unwinding roller 11 rotates, it drives all the first bevel gears 33 to move around the second bevel gear 34. The second bevel gear 34 meshes with each of the first bevel gears 33, causing the first bevel gears 33 to rotate synchronously, which in turn drives the lead screw 31 to rotate. The lead screw 31 drives the connecting block 21 to slide along the guide rail 23 towards the axis of the unwinding roller 11, and the film roll 22 also moves closer to the axis of the unwinding roller 11. This gradually reduces the length of the protective film 42 wound by the film roll 22 in one revolution around the unwinding roller 11, dynamically adjusting the winding speed of the protective film 42 to match the winding speed of the protective film 42 with the gradually decreasing unwinding speed of the aluminum plate 41 due to the decreasing diameter of the aluminum coil 4.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel feeding device, comprising a frame (1), wherein an unwinding roller (11) is rotatably mounted on the frame (1), a fixed baffle (111) is fixedly mounted at one end of the unwinding roller (11) near the frame (1), and a movable baffle (2) is detachably connected to the other end of the unwinding roller (11) away from the frame (1), characterized in that: The movable baffle (2) has at least two connecting blocks (21) on the side away from the fixed baffle (111). All the connecting blocks (21) are evenly and spaced apart along the circumference of the movable baffle (2). The connecting blocks (21) are provided with film winding frames (22) extending in a direction away from the axis of the unwinding roller (11). All the film winding frames (22) are used to jointly wind the protective film (42). The film winding frame (22) is provided with a constraint groove (221) at one end away from the connecting block (21). The film winding frame (22) abuts against the protective film (42) in the constraint groove (221).

2. The novel feeding device according to claim 1, characterized in that: The movable baffle (2) has at least two guide rails (23) fixed on the side away from the fixed baffle (111). The guide rails (23) are arranged radially along the unwinding roller (11). The connecting block (21) corresponds to the guide rail (23) one by one, and the connecting block (21) is slidably connected to the guide rail (23). The movable baffle (2) is also provided with a movable component (3), which is used to drive the connecting block (21) to slide.

3. The novel feeding device according to claim 2, characterized in that: The movable component (3) includes a lead screw (31) and a fixed plate (32). The fixed plate (32) is fixedly connected to the movable baffle (2). The lead screw (31) is rotatably connected to the fixed plate (32). The lead screw (31) is threadedly engaged with the connecting block (21).

4. The novel feeding device according to claim 3, characterized in that: The movable component (3) further includes a first bevel gear (33), a second bevel gear (34), and a fixing member (35). The first bevel gear (33) is coaxial with and fixedly connected to the lead screw (31). The second bevel gear (34) is aligned with the axis of the unwinding roller (11). The second bevel gear (34) is rotatably connected to the movable baffle (2). The second bevel gear (34) meshes with all the first bevel gears (33). The fixing member (35) is used to prevent the second bevel gear (34) from rotating with the unwinding roller (11).

5. The novel feeding device according to claim 4, characterized in that: The fixing component (35) includes a fixing sleeve (351), a telescopic rod (352), a connecting rod (353), and a plug (354). The fixing sleeve (351) is fixedly connected to the frame (1). The fixing sleeve (351) is parallel to the axis of the unwinding roller (11). The telescopic rod (352) is inserted into the fixing sleeve (351). The connecting rod (353) is fixedly connected to the telescopic rod (352). The plug (354) is fixedly connected to the connecting rod (353). The second bevel gear (34) has a slot (341) on the side away from the movable baffle (2). The plug (354) is inserted into the slot (341) and abuts against the slot (341).

6. The novel feeding device according to claim 5, characterized in that: The fastener (35) also includes a locking pin (355). A first pin hole (3511) is provided through the side wall of the fixed sleeve (351), and a second pin hole (3521) is provided on the side wall of the telescopic rod (352). The locking pin (355) is inserted into both the first pin hole (3511) and the second pin hole (3521).

7. The novel feeding device according to claim 4, characterized in that: A guard plate (24) is fixedly installed on the movable baffle (2), and the first bevel gear (33) and the second bevel gear (34) are both located inside the guard plate (24).

8. The novel feeding device according to claim 1, characterized in that: An auxiliary roller (25) is rotatably mounted on the frame (1). The auxiliary roller (25) is used to press against the protective film (42) and guide the protective film (42) to move in the direction of detaching from the aluminum plate (41).