Aluminum foil slitting and winding device

Abstract

An aluminum foil slitting and winding device relates to the technical field of slitting and rewinding and comprises a slitting unit, a rewinding unit, a tension adjusting device and a slitter edge winding device. The tension degree adjusting device works cooperatively through a rotary disc, a swing arm and a variable-diameter adjusting roller, it is ensured that the wrap angle and the tension degree are constant when aluminum foil enters the roller, and the problems of wrinkles and edge warping in the winding process are remarkably solved. The variable-diameter adjusting roller adopts the design of an elastic supporting framework and a double-spiral lead screw, and the transverse and longitudinal tension degree of the aluminum foil can be flexibly adjusted. And the slitter edge winding device is provided with a slewing bearing and a reel, so that ordered winding of slitter edges is realized, and normal winding operation is prevented from being interfered. In addition, a pulse type air hammer and a buffer device are further arranged and used for releasing the stress of the edge of the aluminum foil and preventing the slitter edge from being knotted or wound correspondingly, and the winding process is further optimized. According to the aluminum foil winding device, the stability and quality of aluminum foil winding are improved, the operation difficulty is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of slitting and rewinding, and in particular to an aluminum foil slitting and rewinding device. Background Art

[0002] In the production process of aluminum foil, slitting and winding are key links. Due to its excellent properties, aluminum foil is widely used in food, beverages, cigarettes, medicines, photographic plates, household daily necessities and other fields, usually as a packaging material. Traditional aluminum foil slitting and winding devices have some problems in actual use, which are mainly reflected in the following aspects: 1. Unstable winding quality: During the winding process, the tension and wrap angle of the aluminum foil are difficult to maintain constant, which leads to wrinkles, warping and other problems during winding, affecting the appearance and performance of the product.

[0003] 2. Insufficient adjustment flexibility: The existing slitting and winding devices are complicated to operate when adjusting the tension and wrap angle of the aluminum foil, and the adjustment accuracy is not high enough to meet the production needs of aluminum foils of different specifications.

[0004] 3. Imperfect waste edge processing: If the waste edges generated during the slitting process are not handled promptly and effectively, they may interfere with the normal operation of the winding unit, or even cause downtime, affecting production efficiency; they are easily scratched during manual collection and processing. Those skilled in the art are in urgent need of developing an aluminum foil slitting and winding device to solve the above defects. Summary of the invention

[0005] In order to overcome the shortcomings of the background technology, the present invention discloses an aluminum foil slitting and winding device, which aims to accurately control the tension and wrap angle of the aluminum foil to ensure that the aluminum foil can maintain good flatness and stability during the winding process to avoid wrinkles.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: An aluminum foil slitting and winding device, a slitting unit, is used for trimming the aluminum foil; The rewinding unit is located at the discharge end of the slitting unit and is used to rewind the aluminum foil; The tension adjustment device is located at the feeding end of the rewinding unit and is used to adjust the horizontal / vertical tension and wrap angle of the aluminum foil; Two scrap edge reeling devices are located between the tension adjustment device and the slitting unit, and are used to reel in the scrap edges on both sides of the aluminum foil; Wherein, the tension adjustment device comprises: Two turntables are respectively connected to the two sides of the rewinding unit frame for rotation, and the turntables are driven by a first motor; The swing arm is rotatably connected to the turntable surface, and a torsion spring and a limit device are provided between the swing arm and the turntable, so that the relative deflection angle between the swing arm and the turntable is 0-3°. The turntable drives the swing arm to deflect and adjust the longitudinal tension of the aluminum foil. The roller frame is telescopically connected to the ends of the two swing arms facing away from the turntable; The telescopic cylinder is installed between the swing arm and the roller frame to drive the roller frame to extend and retract to adjust the wrap angle of the aluminum foil entering the roller; The variable diameter adjusting roller is rotatably connected to the roller frame and adjusts the transverse tension of the aluminum foil by changing its diameter.

[0007] Preferably, the variable diameter adjusting roller comprises: Hollow rubber roller, used to support the aluminum foil; Two fixed plates are respectively tightly connected to the two ends of the hollow rubber roller, and the two fixed plates are respectively rotatably connected to the two ends of the roller frame; A plurality of elastic support frames are located in the hollow rubber roller and are symmetrically divided into two groups; the elastic support frames are arranged at intervals along the fixed disk, and one end of the elastic support frame is hinged to the fixed disk; A double-helical screw rod passes through the two fixed disks and is rotationally connected to the fixed disks; The two conical adjusting heads are respectively connected with the two sections of the double helical screw with opposite rotation directions. The double helical screw is rotated to drive the two conical adjusting heads to move away from or close to each other, so as to push the elastic support frame to expand or contract, thereby adjusting the diameter of the hollow rubber roller; A plurality of limiting slide grooves are arranged at intervals along the cone-shaped adjusting head in an annular direction and are used to limit the elastic support frame; The guide rod is fixedly connected between the two fixed plates and movably penetrates the conical adjusting head to limit the rotation of the conical adjusting head.

[0008] Preferably, the double-helical screw comprises two screws with opposite rotation directions, and one ends of the two screws are correspondingly rotatably connected.

[0009] Preferably, the end of the double-helical screw extending out of the fixed disk is threadedly connected with a locking nut that contacts the fixed disk.

[0010] Preferably, a pulse air hammer is provided on one side of the roller frame; The impulse hammer includes: The bracket is fastened and connected with the roller frame accordingly; A plurality of air jets are divided into two groups and symmetrically installed on both sides of the bracket, and an included angle of 15° to 75° is formed between an air jet axis of the air jet and an axis of the variable diameter adjusting roller.

[0011] Preferably, an angle encoder for monitoring the relative deflection angle between the swing arm and the turntable is installed between the swing arm and the turntable.

[0012] Preferably, the waste edge winding device comprises: The slewing bearing is installed on the frame of the rewinding unit and driven by the second motor to reciprocate in forward and reverse directions; A mounting frame, mounted on the rotating disk of the slewing bearing; A reel, one end of which is rotatably connected to the top of the mounting frame and is used to reel in the waste edge of the aluminum foil; The driving motor is installed on the mounting frame to drive the reel to reel in the waste edge of the aluminum foil; while the reel rotates, it deflects back and forth along the axis of the slewing bearing, so that the waste edge of the aluminum foil is reciprocated along the axial direction of the reel.

[0013] Preferably, the reel is in a fork-shaped structure.

[0014] Preferably, it further comprises a buffer device disposed between the scrap edge winding device and the slitting unit, the buffer device comprising: Buffer box, used to temporarily store aluminum foil scraps; The clamping roller group is installed on one side of the top of the buffer box, and includes two clamping rollers that can clamp the scrap edge of the aluminum foil, and one of the clamping rollers is synchronously connected with the cutting roller of the slitting unit; Guide roller, installed on the other side of the top of the buffer box.

[0015] Preferably, it further comprises a floating monitoring device arranged in the buffer tank, the floating monitoring device comprising: A fixing seat is installed at the bottom of the buffer box, and an operation opening is provided on the side of the buffer box; The floating rod is matched with the fixing seat in vertical sliding motion; A fork-shaped frame fixed to the top of the floating rod; A rotating shaft, rotatably connected to the open end of the fork frame, is used to redirect the waste edge of the aluminum foil; The straight-slide potentiometer is installed between the floating rod and the fixed seat to monitor the floating stroke of the floating rod.

[0016] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: 1. The aluminum foil slitting and winding device disclosed in the present invention can effectively ensure that the wrap angle and tension of the aluminum foil when it enters the roller are always constant through the deflection and expansion and contraction coordination of the roller frame of the tension adjustment device, thereby significantly improving the wrinkling of the aluminum foil when it is rolled up. Specifically, the tension adjustment device can automatically adjust according to the change of the tension of the aluminum foil, ensuring that the aluminum foil is rolled up in the best state, avoiding the problem of wrinkles.

[0017] 2. The variable diameter adjusting roller of the present invention can flexibly adjust the taper according to the width and thickness of the aluminum foil, further improving the winding quality. Through the design of the double spiral screw and the conical adjusting head, the positions of the two conical adjusting heads can be adjusted independently, thereby realizing the precise control of the lateral tension of the aluminum foil.

[0018] 3. The present invention sets two scrap edge reeling devices between the tension adjustment device and the slitting unit, which are used to collect the scrap edges cut from both sides of the aluminum foil. This design can not only effectively prevent the scrap edges of the aluminum foil cut from interfering with the normal rewinding operation of the rewinding unit, but also facilitate the centralized collection of the scrap edges of the aluminum foil, avoiding the need for operators to collect and sort the scrap edges of the aluminum foil due to downtime, thereby effectively improving the safety factor, better protecting the personal safety of the operators, and also improving the efficiency and stability of the entire rewinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of a tension adjustment device; Figure 3 It is a structural schematic diagram of a variable diameter adjusting roller; Figure 4 It is a partial cross-sectional view of the variable diameter adjusting roller; Figure 5 It is a three-dimensional structural schematic diagram of some parts of the variable diameter adjusting roller; Figure 6 It is a structural schematic diagram of the waste edge winding device; Figure 7 is a schematic diagram of the structure of the buffer device; Figure 8 It is a structural schematic diagram of the floating monitoring device.

[0020] In the figure: 1. Slitting unit; 2. Rewinding unit; 3. Tension adjustment device; 3-1. Turntable; 3-2. First motor; 3-3. Swing arm; 3-4. Roller frame; 3-5. Telescopic cylinder; 4. Waste edge rewinding device; 4-1. Slewing bearing; 4-2. Mounting frame; 4-3. Reel; 4-4. Driving motor; 5. Variable diameter adjustment roller; 5-1. Fixed plate; 5-2. Hollow rubber roller; 5-3. Double helical screw; 5-4, conical adjusting head; 5-5, limiting slide; 5-6, guide rod; 5-7, locking nut; 5-8, elastic supporting frame; 6, pulse air hammer; 6-1, bracket; 6-2, air nozzle; 7, buffer device; 7-1, buffer box; 7-2, clamping roller group; 7-3, guide roller; 7-4, fixed seat; 7-5, floating rod; 7-6, fork frame; 7-7, rotating shaft. DETAILED DESCRIPTION

[0021] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction. Embodiment 1:

[0022] Combined with Figures 1 to 5 , A device for slitting and winding aluminum foil, through the coordinated cooperation of various components of a tension adjustment device 3, can effectively ensure that the wrap angle and tension of the aluminum foil when it enters the roller are always in a constant state, thereby significantly improving the wrinkles of the aluminum foil when it is wound up. The device comprises a slitting unit 1, a rewinding unit 2, a tension adjustment device 3 and a waste edge winding device 4. Among them, the slitting unit 1 is a front-end processing module, and its main function is to ensure that the aluminum foil can obtain neat edges before entering the subsequent processing steps, providing a good foundation for subsequent processes. After the aluminum foil is trimmed, it is transported to the rewinding unit 2 through a guide roller. The rewinding unit 2 is responsible for receiving the trimmed aluminum foil and rolling it into a roll in a predetermined manner to complete the final winding work.

[0023] In order to ensure that the aluminum foil has proper tension and wrap angle before entering the rewinding unit 2, a tension adjustment device 3 is arranged before the feeding end of the rewinding unit 2. The main function of the tension adjustment device 3 is to adjust the tension of the aluminum foil in the transverse and longitudinal directions, as well as the wrap angle of the aluminum foil entering the roller, so as to ensure that the aluminum foil can be rolled up in the best state, effectively avoid wrinkles, warping and other problems, and provide a strong guarantee for high-quality rolling.

[0024] Specifically, as attached Figure 2As shown, the tension adjustment device 3 includes two turntables 3-1, which are rotatably connected to the two sides of the frame of the rewinding unit 2, and are driven by the first motor 3-2, and can be flexibly rotated to a corresponding angle according to actual needs. A swing arm 3-3 is rotatably connected to the disk surface of the turntable 3-1, and a torsion spring and a limit device are provided between the turntable 3-1 and the swing arm 3-3, wherein the limit device keeps the relative deflection angle between the swing arm 3-3 and the turntable 3-1 within the range of 0 to 3°; the torsion spring enables the swing arm 3-3 to deflect and float within the range of 0 to 3° corresponding to the turntable 3-1. After the tension is adjusted to the right level, the swing arm 3-3 is deflected upward by the upward push of the aluminum foil. Under the action of the torsion spring, the deflection angle of the swing arm 3-3 relative to the turntable 3-1 is maintained at 1.5°. When the tension increases, the swing arm 3-3 deflects upward, and the deflection angle of the swing arm 3-3 relative to the turntable 3-1 increases. Limited by the limitation of the limit device, the maximum increase is 3°; when the tension decreases, the swing arm 3-3 deflects downward under the action of the torsion spring, and the deflection angle of the swing arm 3-3 relative to the turntable 3-1 decreases. Limited by the limitation of the limit device, the minimum decrease is to 0°.

[0025] As attached Figure 2 As shown, the positions of the two swing arms 3-3 corresponding to the turntable 3-1 are connected through a hollow tube. This design enables the two swing arms 3-3 to achieve synchronous movement. In order to further ensure that the two turntables 3-1 can also move synchronously, a connecting rod is provided in the hollow tube, and the two ends of the connecting rod are respectively fastened to the two turntables 3-1. In this way, only one first motor 3-2 needs to be installed to drive the two turntables 3-1 to rotate synchronously, which greatly improves the operating efficiency and coordination of the device.

[0026] It is worth noting that the torsion spring plays a vital role in the device. It not only enables the swing arm 3-3 and the turntable 3-1 to rotate relative to each other, but also to reset automatically, so as to effectively deal with the sudden change of the tension of the aluminum foil, reserve sufficient time for the system adjustment, and ensure the stability of the entire winding process. At the same time, the torsion spring can also play the role of vibration filtering, significantly reducing the shaking during the winding process of the aluminum foil, and further improving the winding quality. In addition, the maximum torque of the torsion spring needs to be greater than the longitudinal tension of the aluminum foil during normal winding to avoid the failure of the torsion spring adjustment function and ensure that the device can operate stably under various working conditions.

[0027] Furthermore, an angle encoder for monitoring the relative deflection angle between the swing arm 3-3 and the turntable 3-1 is installed between the swing arm 3-3 and the turntable 3-1, which is not shown in the figure. During normal winding operation, the relative deflection angle between the swing arm 3-3 and the turntable 3-1 is set to 1.5° to ensure the best winding effect. When the tension of the aluminum foil suddenly increases, the relative deflection angle between the swing arm 3-3 and the turntable 3-1 will increase accordingly. At this time, the swing arm 3-3 needs to be driven by the first motor 3-2 to deflect upward to adjust the tension. Conversely, when the tension of the aluminum foil suddenly decreases, the relative deflection angle between the swing arm 3-3 and the turntable 3-1 will decrease. At this time, the swing arm 3-3 needs to be driven by the first motor 3-2 to deflect downward. In order to reduce the control difficulty and give full play to the vibration filtering effect of the torsion spring, a certain angle deflection threshold can be set. For example, during normal winding operation, the relative deflection angle between the swing arm 3-3 and the turntable 3-1 is 1.5°; only when the relative deflection angle between the swing arm 3-3 and the turntable 3-1 increases to 2°, or decreases to 1°, the first motor 3-2 will intervene to perform active adjustment.

[0028] The ends of the two swing arms 3-3 facing away from the turntable 3-1 are telescopically connected to the roller frame 3-4. A telescopic cylinder 3-5 is installed between the swing arm 3-3 and the roller frame 3-4, and the telescopic cylinder 3-5 drives the roller frame 3-4 to extend and retract, thereby accurately adjusting the wrap angle of the aluminum foil when it enters the roller. When the telescopic cylinder 3-5 drives the roller frame 3-4 to extend, the wrap angle of the aluminum foil when it enters the roller will increase accordingly; conversely, when the telescopic cylinder 3-5 drives the roller frame 3-4 to shorten, the wrap angle of the aluminum foil when it enters the roller will decrease.

[0029] The roller frame 3-4 is rotatably connected with a variable diameter adjustment roller 5. By adjusting the taper of the variable diameter adjustment roller 5, the transverse tension of the aluminum foil before entering the roller can be effectively adjusted. Specifically, the larger the taper of the variable diameter adjustment roller 5, the greater the transverse tension of the aluminum foil before entering the roller. After the aluminum foil is trimmed, it is first redirected by the guide roller, then redirected by the variable diameter adjustment roller 5, and finally enters the winding roller of the rewinding unit 2. Therefore, the turntable 3-1 can be driven to rotate by the first motor 3-2, the turntable 3-1 drives the swing arm 3-3 to deflect, and the swing arm 3-3 drives the variable diameter adjustment roller 5 to deflect, thereby realizing the adjustment of the longitudinal tension of the aluminum foil. When the variable diameter adjustment roller 5 deflects downward, the longitudinal tension of the aluminum foil increases; conversely, when the variable diameter adjustment roller 5 deflects upward, the longitudinal tension of the aluminum foil decreases.

[0030] It is worth noting that the horizontal displacement and vertical deflection of the variable diameter adjustment roller 5 driven by the roller frame 3-4 need to cooperate to ensure the stability and consistency of the entire winding process. During the normal winding operation, as the number of aluminum foil layers on the winding roller of the rewinding unit 2 continues to increase, the diameter of the aluminum foil roll will gradually increase, and accordingly, the wrap angle of the aluminum foil when it enters the roller will also increase. In order to keep the wrap angle of the aluminum foil entering the roller and the tension of the aluminum foil unchanged, it is necessary to shorten the telescopic cylinder 3-5 so that the variable diameter adjustment roller 5 is away from the rewinding unit 2. However, due to the horizontal displacement of the variable diameter adjustment roller 5, the tension will increase, so it is also necessary to adjust the roller frame 3-4 to deflect upward. The upward deflection of the roller frame 3-4 can not only reduce the wrap angle of the aluminum foil when it enters the roller, but also reduce the tension of the aluminum foil, thereby achieving the goal of keeping the wrap angle of the aluminum foil entering the roller and the tension of the aluminum foil unchanged.

[0031] Specifically, as attached Figures 3 to 5 As shown, the variable diameter adjustment roller 5 includes a hollow rubber roller 5-2 for supporting the aluminum foil. It should be noted that the hollow rubber roller 5-2 needs to have a certain elastic deformation ability to adapt to different working conditions. The two ends of the hollow rubber roller 5-2 are respectively fastened with fixed disks 5-1, and the two fixed disks 5-1 are respectively rotatably connected to the two ends of the roller frame 3-4. The fixed disk 5-1 plays the role of a transition connection here, so that the hollow rubber roller 5-2 can rotate freely on the roller frame 3-4, ensuring the flexibility and stability of the overall structure.

[0032] A plurality of elastic support skeletons 5-8 are arranged in the hollow rubber roller 5-2. These elastic support skeletons 5-8 are symmetrically divided into two groups, which are respectively located at the two ends of the hollow rubber roller 5-2. The elastic support skeletons 5-8 are arranged circumferentially and spaced apart along the fixed disk 5-1, and one end of the elastic support skeleton 5-8 is hinged to the fixed disk 5-1. The advantage of this design is that the free ends of the two groups of elastic support skeletons 5-8 can freely expand or contract along the radial direction of the hollow rubber roller 5-2, so as to flexibly adjust the taper of the hollow rubber roller 5-2.

[0033] A double helical screw 5-3 is provided between the two fixed disks 5-1, and the double helical screw 5-3 is rotatably connected to the fixed disk 5-1. The two sections of the screw rods of the double helical screw 5-3 with opposite rotation directions are respectively threadedly connected with a conical adjustment head 5-4, and the large ends of the two conical adjustment heads 5-4 are arranged facing each other. By rotating the double helical screw 5-3, the two conical adjustment heads 5-4 can be driven to move away from or close to each other. When the conical adjustment head 5-4 moves toward its small end, it will push the corresponding elastic support skeleton 5-8 to expand, so that the taper of the hollow rubber roller 5-2 increases, thereby increasing the lateral tension of the aluminum foil; conversely, when the conical adjustment head 5-4 moves toward its large end, the corresponding elastic support skeleton 5-8 will shrink, so that the taper of the hollow rubber roller 5-2 decreases, thereby reducing the lateral tension of the aluminum foil. It should be noted that the lateral tension of the aluminum foil needs to be accurately adjusted according to the actual situation in the initial stage of winding to ensure the smooth progress of the entire winding process.

[0034] The conical adjusting head 5-4 is provided with a plurality of limiting grooves 5-5 at intervals along its annular direction, and the number of the limiting grooves 5-5 on the conical adjusting head 5-4 matches the number of the elastic support skeletons 5-8 at the corresponding ends of the hollow rubber roller 5-2. This design can effectively limit the elastic support skeleton 5-8 through the limiting grooves 5-5, prevent the elastic support skeleton 5-8 from deflecting during the adjustment process, and ensure the stability and reliability of the overall structure.

[0035] It is worth noting that the more elastic support skeletons 5-8 there are, the better, so that the hollow rubber roller 5-2 can be effectively supported, so that its cross section maintains a good roundness. The reason for selecting the elastic support skeleton 5-8 is that it has a certain elastic deformation ability. During the expansion process of the elastic support skeleton 5-8, due to the lack of support at its free end, it can bend at a certain angle, and the position of the elastic support skeleton 5-8 corresponding to the conical adjustment head 5-4 will arch upward. On the one hand, this design can achieve a natural transition in the taper of the hollow rubber roller 5-2, thereby significantly improving the adjustment quality of the lateral tension of the aluminum foil; on the other hand, it can also make the elastic support skeleton 5-8 fit closely with the inner wall surface of the hollow rubber roller 5-2, provide effective support for the hollow rubber roller 5-2, and prevent the hollow rubber roller 5-2 from deforming when it is pulled by the aluminum foil. In addition, the free end of the elastic support skeleton 5-8 is provided with a bending portion, as shown in the attached Figure 5 As shown, the bent portion can prevent the hollow rubber roller 5-2 from being accidentally pierced when the elastic support skeleton 5-8 expands.

[0036] A plurality of guide rods 5-6 are fixedly connected between the two fixed disks 5-1, and the guide rods 5-6 movably penetrate the conical adjustment head 5-4. On the one hand, the guide rods 5-6 can effectively limit the rotation of the conical adjustment head 5-4 to ensure its stability during the adjustment process; on the other hand, the guide rods 5-6 also play the role of fastening the two fixed disks 5-1, further enhancing the structural stability of the overall structure.

[0037] Furthermore, the double helical screw 5-3 includes two screws with opposite rotation directions, and one end of the two screws is correspondingly connected for rotation. This design allows the two screws to be independently rotated, so that the positions of the two conical adjustment heads 5-4 can be independently adjusted. In this way, the taper of the corresponding end of the hollow rubber roller 5-2 can be flexibly adjusted according to the specific wrinkle conditions when the aluminum foil is rolled up, and the adjustment process is more flexible and convenient, which can effectively improve the wrinkle problem when the aluminum foil is rolled up and improve the rolling quality.

[0038] In order to prevent the double helical screw 5-3 from rotating under the action of inertia during the winding operation, the end of the double helical screw 5-3 extending out of the fixed disk 5-1 is threadedly connected with a locking nut 5-7 that contacts the fixed disk 5-1. The tight contact between the locking nut 5-7 and the fixed disk 5-1 can effectively lock the double helical screw 5-3, thereby significantly improving the structural stability and reliability of the variable diameter adjustment roller 5, and ensuring the stability and reliability of the overall structure during long-term operation.

[0039] Two scrap edge reeling devices 4 are arranged between the tension adjustment device and the slitting unit, and the two scrap edge reeling devices 4 are used to collect the scrap edges cut from both sides of the aluminum foil. This design can not only effectively prevent the scrap edges of the aluminum foil cut from interfering with the normal winding operation of the rewinding unit 2, but also facilitate the centralized collection of the scrap edges of the aluminum foil. In this way, it is possible to avoid the need for operators to collect and sort the scrap edges of the aluminum foil due to downtime during the winding process, thereby effectively improving the safety factor, better protecting the personal safety of the operators, and also improving the efficiency and stability of the entire winding operation. Embodiment 2:

[0040] In the actual winding process, the stress of the aluminum foil edge after trimming is often not effectively released, which causes the aluminum foil to easily warp during the winding process, seriously affecting the winding quality. In order to solve this technical problem, this embodiment is further improved on the basis of embodiment 1.

[0041] Combined with Figures 1-2 The aluminum foil slitting and winding device in this embodiment is based on the embodiment 1, and a pulse air hammer 6 is added. Figure 2As shown, the pulse air hammer 6 is installed on one side of the roller frame 3-4. By hammering the aluminum foil with pulsed pneumatic impact force, the stress generated when the aluminum foil is trimmed can be effectively released, thereby significantly improving the edge warping phenomenon of the aluminum foil during the winding process. The specific structure of the pulse air hammer 6 includes a bracket 6-1 that is fastened to the roller frame 3-4, and a plurality of air nozzles 6-2 are arranged on the bracket 6-1. These air nozzles 6-2 are divided into two groups and are symmetrically installed on both sides of the bracket 6-1. The jet axis of the air nozzle 6-2 and the axis of the variable diameter adjustment roller 5 form an angle of 15° to 75°, and the air nozzles 6-2 on both sides of the bracket 6-1 are arranged in an eight-shaped shape.

[0042] It should be noted that the multiple air nozzles 6-2 are connected to the air source through electromagnetic valves. During the operation, the air nozzles 6-2 are opened one by one from the middle of the aluminum foil to both sides. This design can not only effectively release the stress of the aluminum foil, but also spread out the wrinkles of the aluminum foil, further improve the wrinkles of the aluminum foil when it is rolled up, and thus significantly improve the rolling quality. Embodiment 3:

[0043] Combined with Figure 1 , 6 8, the aluminum foil slitting and winding device in this embodiment is based on the embodiment 1 or 2, and the waste edge winding device 4 is further improved. Figure 6 As shown, the specific structure of the scrap edge winding device 4 includes a slewing bearing 4-1 installed on the frame of the rewinding unit 2, and the slewing bearing 4-1 is driven by the second motor and can realize reciprocating forward and reverse rotation. The rotating disk of the slewing bearing 4-1 is tightly connected to the mounting frame 4-2, and the top of the mounting frame 4-2 is rotatably connected to a reel 4-3 for winding up the scrap edge of aluminum foil. The reel 4-3 is driven by a driving motor 4-4, and the driving motor 4-4 is installed on the mounting frame 4-2.

[0044] When the aluminum foil scrap is rolled up, the reel 4-3 not only rotates on its own, but also deflects back and forth along the axis of the slewing bearing 4-1, so that the aluminum foil scrap is wound back and forth along the axial direction of the reel 4-3. Since the width of the aluminum foil scrap is narrow, this reciprocating winding method can effectively reduce the radius of the aluminum foil scrap roll and avoid the collapse of the aluminum foil scrap roll during the rolling process. In addition, the length of the aluminum foil scrap wound along the axial direction of the reel 4-3 can be accurately controlled by controlling the reciprocating rotation angle of the slewing bearing 4-1.

[0045] Furthermore, the reel 4-3 is designed as a fork-shaped structure. In the early stage of reeling, this structure can facilitate the operator to wind the aluminum foil waste edges onto the reel 4-3. As shown in the figure, the shaft body of the reel 4-3 is movably sleeved with an isolation disk. On the one hand, the isolation disk can prevent the aluminum foil waste edges from winding around the mounting frame 4-2; on the other hand, when the machine is shut down, the operator can push the isolation disk to remove the aluminum foil waste edges from the reel 4-3 for unified treatment after collection, which greatly improves the efficiency and safety of waste edge treatment.

[0046] It is worth noting that, in actual use, in order to prevent the waste edge reeling device 4 from over-reeling the aluminum foil waste edge, causing the aluminum foil waste edge to be accidentally torn off, or affecting the normal slitting operation of the slitting unit 1, it is necessary to reserve a sufficiently long aluminum foil waste edge between the waste edge reeling device 4 and the slitting unit 1. However, during the reeling operation, it was found that the aluminum foil waste edge was easily knotted or entangled with other equipment after being reserved for a long time, resulting in the waste edge reeling device 4 being unable to operate normally. In order to solve this technical problem, this embodiment has been further improved.

[0047] A buffer device 7 is provided between the scrap winding device 4 and the slitting unit 1. Figure 7 As shown, the buffer device 7 includes a buffer box 7-1 for temporarily storing the waste edges of aluminum foil, which can effectively prevent the waste edges of aluminum foil from being accidentally entangled with other equipment. A clamping roller group 7-2 is installed on one side of the top of the buffer box 7-1. The clamping roller group 7-2 includes two clamping rollers that can clamp the waste edges of aluminum foil, and one of the clamping rollers is synchronously connected to the cutting roller of the slitting unit 1. The advantage of this design is that the waste edges of aluminum foil are driven and transmitted by the clamping roller group 7-2, so that the waste edges of aluminum foil between the clamping roller group 7-2 and the slitting unit 1 are prevented from being pulled, thereby not interfering with the normal operation of the slitting unit 1. A guide roller 7-3 is installed on the other side of the top of the buffer box 7-1. The guide roller 7-3 plays a redirecting role to prevent the waste edges of aluminum foil from being scratched against the top of the buffer box 7-1 during the winding process, further improving the stability of the waste edge winding.

[0048] Furthermore, a floating monitoring device is provided in the buffer tank 7-1. Figure 8 As shown, the specific structure of the floating monitoring device includes a fixed seat 7-4 installed at the bottom of the buffer box 7-1, and the fixed seat 7-4 is vertically slidably matched with a floating rod 7-5. A fork frame 7-6 is fixed on the top of the floating rod 7-5, and the open end of the fork frame 7-6 is rotatably connected to a rotating shaft 7-7. After the aluminum foil waste edge enters the buffer box 7-1, it is redirected by the rotating shaft 7-7. Pulling the aluminum foil waste edge by the rotating shaft 7-7 can effectively prevent the aluminum foil waste edge from being knotted in the buffer box 7-1, ensuring the smooth progress of the waste edge winding process.

[0049] Furthermore, a direct sliding potentiometer for monitoring the floating stroke of the floating rod 7-5 is provided between the floating rod 7-5 and the fixed seat 7-4, which is not shown in the figure. The direct sliding potentiometer is an existing mature sensor, and its structure and working principle are not described here.

[0050] In the initial stage, the floating rod 7-5 is in the middle position of the maximum floating stroke. During the winding process, the winding speed of the reel 4-3 can be adjusted according to the floating or downward stroke of the floating rod 7-5. When the floating stroke of the floating rod 7-5 increases greatly, it means that the winding speed is too fast, and the winding speed needs to be reduced; conversely, when the downward stroke of the floating rod 7-5 is large, it means that the winding speed is too slow, and the winding speed needs to be increased. This design can realize dynamic adjustment of the winding speed and ensure the stability and reliability of the scrap winding process.

[0051] It is worth noting that the side of the buffer box 7-1 is provided with an operation opening, which is convenient for the operator to make the aluminum foil waste edge bypass the rotating shaft 7-7 in the initial stage. This humanized design further improves the operating convenience of the device, reduces the operating difficulty, and improves production efficiency.

[0052] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. An aluminum foil slitting and winding device, characterized in that it comprises: A slitting unit (1), used for cutting the edges of the aluminum foil; A rewinding unit (2) is arranged at the discharge end of the slitting unit (1) and is used for rewinding the aluminum foil; A tension adjustment device (3) is provided at the feed end of the rewinding unit (2) and is used to adjust the transverse / longitudinal tension and wrap angle of the aluminum foil; Two scrap edge reeling devices (4) are located between the tension adjustment device (3) and the slitting unit (1) and are used to reel in the scrap edges on both sides of the aluminum foil; in, The tension adjustment device (3) comprises: Two turntables (3-1) are respectively connected to two sides of a frame of a rewinding unit (2) for rotation, and the turntables (3-1) are driven by a first motor (3-2); The swing arm (3-3) is rotatably connected to the surface of the turntable (3-1), and a torsion spring and a limit device are provided between the swing arm (3-3) and the turntable (3-1), so that the relative deflection angle between the swing arm (3-3) and the turntable (3-1) is between 0 and 3 degrees, and the turntable (3-1) drives the swing arm (3-3) to deflect, thereby adjusting the longitudinal tension of the aluminum foil; The roller frame (3-4) is telescopically connected to one end of the two swing arms (3-3) away from the rotating disk (3-1); A telescopic cylinder (3-5) is installed between the swing arm (3-3) and the roller frame (3-4) and is used to drive the roller frame (3-4) to telescope so as to adjust the wrap angle of the aluminum foil entering the roller; The variable diameter adjustment roller (5) is rotatably connected to the roller frame (3-4) and adjusts the transverse tension of the aluminum foil by changing its diameter.

2. The aluminum foil slitting and winding device according to claim 1, characterized in that: The variable diameter adjustment roller (5) comprises: A hollow rubber roller (5-2) for supporting the aluminum foil; Two fixed disks (5-1) are respectively tightly connected to two ends of the hollow rubber roller (5-2), and the two fixed disks (5-1) are respectively rotatably connected to two ends of the roller frame (3-4); A plurality of elastic support frames (5-8) are located inside the hollow rubber roller (5-2) and are symmetrically divided into two groups; the elastic support frames (5-8) are arranged at intervals along the fixed disk (5-1) in the circumferential direction, and one end of the elastic support frames (5-8) is correspondingly hinged to the fixed disk (5-1); A double helical screw rod (5-3) passes through the two fixed disks (5-1) and is rotationally connected to the fixed disks (5-1); The two conical adjusting heads (5-4) are respectively connected to two sections of the double helical screw (5-3) with opposite rotation directions, and the double helical screw (5-3) is rotated to drive the two conical adjusting heads (5-4) to move away from or towards each other, thereby pushing the elastic support frame (5-8) to expand or contract, thereby adjusting the diameter of the hollow rubber roller (5-2); A plurality of limiting slide grooves (5-5) are arranged at intervals in the circumferential direction along the conical adjustment head (5-4) and are used for limiting the elastic support frame (5-8); The guide rod (5-6) is fixedly connected between the two fixed disks (5-1) and movably passes through the conical adjustment head (5-4) to limit the rotation of the conical adjustment head (5-4).

3. The aluminum foil slitting and winding device according to claim 2, characterized in that: The double helical screw (5-3) comprises two screws with opposite rotation directions, and one end of the two screws are correspondingly rotatably connected.

4. The aluminum foil slitting and winding device according to claim 2, characterized in that: The end of the double-helical screw rod (5-3) extending out of the fixed disk (5-1) is threadedly connected to a locking nut (5-7) that contacts the fixed disk (5-1) accordingly.

5. The aluminum foil slitting and winding device according to claim 1 or 2, characterized in that: A pulse air hammer (6) is provided on one side of the roller frame (3-4); The impulse hammer (6) comprises: The bracket (6-1) is correspondingly and firmly connected to the roller frame (3-4); The plurality of air jets (6-2) are divided into two groups and symmetrically mounted on both sides of the bracket (6-1); an air jet axis of the air jets (6-2) and an axis of the variable diameter adjustment roller (5) form an angle of 15° to 75°.

6. The aluminum foil slitting and winding device according to claim 1, characterized in that: An angle encoder for monitoring the relative deflection angle between the swing arm (3-3) and the rotating disk (3-1) is installed between the swing arm (3-3) and the rotating disk (3-1).

7. The aluminum foil slitting and winding device according to claim 1, characterized in that: The waste edge winding device (4) comprises: The slewing bearing (4-1) is mounted on the frame of the rewinding unit (2) and driven by a second motor to reciprocate in forward and reverse directions; A mounting frame (4-2) is mounted on the rotating disk of the slewing bearing (4-1); A reel (4-3) has one end rotatably connected to the top of the mounting frame (4-2) and is used to reel in the waste edge of the aluminum foil; The drive motor (4-4) is mounted on the mounting frame (4-2) and is used to drive the reel (4-3) to reel in the waste edge of the aluminum foil; while the reel (4-3) rotates, it also reciprocates forward and reverse along the axis of the slewing bearing (4-1), so that the waste edge of the aluminum foil is reciprocated along the axial direction of the reel (4-3).

8. The aluminum foil slitting and winding device according to claim 7, characterized in that: The scroll (4-3) is in a fork-shaped structure.

9. The aluminum foil slitting and winding device according to claim 7 or 8, characterized in that: It also includes a buffer device (7) disposed between the scrap edge winding device (4) and the slitting unit (1), and the buffer device (7) includes: A buffer box (7-1) is used for temporarily storing aluminum foil waste edges; A clamping roller group (7-2) is installed on one side of the top of the buffer box (7-1), comprising two clamping rollers capable of clamping the waste edges of the aluminum foil, and one of the clamping rollers is synchronously connected to the cutting roller of the slitting machine group (1); The guide roller (7-3) is installed on the other side of the top of the buffer box (7-1).

10. The aluminum foil slitting and winding device according to claim 9, characterized in that: It also includes a floating monitoring device arranged in the buffer box (7-1), and the floating monitoring device includes: A fixing seat (7-4) is installed on the bottom of the buffer box (7-1), and an operation opening is provided on the side of the buffer box (7-1); The floating rod (7-5) is vertically slidably matched with the fixed seat (7-4); A fork frame (7-6) is fixed on the top of the floating rod (7-5); A rotating shaft (7-7) is rotatably connected to the open end of the fork frame (7-6) and is used to redirect the waste edge of the aluminum foil; The straight-slide potentiometer is installed between the floating rod (7-5) and the fixed seat (7-4) and is used to monitor the floating stroke of the floating rod (7-5).

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