Rewinding machine

Abstract

The utility model discloses a rewinding machine which comprises a side plate, an unwinding roller, a winding roller used for winding a thin film and a pressing roller which is installed on the side plate in a rotating mode and used for pressing the winding roller, a plurality of passing rollers are arranged between the unwinding roller and the pressing roller, and driving mechanisms are arranged at the two ends of the winding roller. The driving mechanism is used for driving the winding roller to move in the direction close to or away from the pressing roller. The rewinding roller system has the advantage of ensuring that the film is tensioned in the rewinding roller system in the winding process, and the possibility that a film roll is wrinkled during winding is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of film rewinding, in particular to a rewinding machine. Background Art

[0002] After the metallized film has gone through the coating and slitting processes, the resulting film roll has problems such as uneven end faces, warped edges, and the edges on the same side cannot be paired. In addition, the resulting film roll is too loose to be shipped directly. Therefore, the film roll needs to be rewound by a rewinder to form a finished roll that meets the specification requirements and tightness requirements.

[0003] The existing rewinding machine sets a pressure roller in front of the winding roller to press the film tightly against the winding roller before winding, so as to prevent the film from wrinkling when winding. During the winding process, the size of the film roll continues to increase, but the pressure roller needs to be in contact with the surface of the film roll at all times to ensure that the film does not wrinkle when winding. The existing solution is to set a movable pressure roller with adjustable position, and as the size of the film increases, the pressure roller moves away from the winding roller. However, when using this method of adjusting the position of the pressure roller, a certain amount of space must be left for the pressure roller to move when starting to wind. Therefore, when starting to wind, the distance between the pressure roller and the previous roller is large, and other rollers cannot be installed in the middle. Therefore, the film has to pass a long and unsupported distance between the roller and the pressure roller, which makes it easy for the film to wrinkle when winding.

[0004] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a rewinding machine, which solves the problem that a film roll is easily wrinkled when the rewinding machine is rewinding.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A rewinding machine comprises a side plate, a rewinding roller, a rewinding roller for rewinding a film and a pressure roller rotatably mounted on the side plate for pressing the rewinding roller, a plurality of rollers are arranged between the rewinding roller and the pressure roller, and a driving mechanism is arranged at both ends of the rewinding roller, and the driving mechanism is used to drive the rewinding roller to move toward or away from the pressure roller.

[0008] In the above structure, a sensing element is provided on the pressure roller, and when the sensing element senses that the winding roller is close to the surface of the pressure roller, the sensing signal is fed back to the driving mechanism.

[0009] In the above structure, the sensing element is a pressure sensor, and the pressure sensor is arranged on a side of the pressure roller close to the winding roller.

[0010] In the above structure, the driving mechanism includes a base plate arranged on both sides of the winding roller, a driving component and a sliding plate slidably arranged on the base plate, a support plate is arranged on the sliding plate, and the two side ends of the winding roller are installed on the support plate, and the driving component is used to drive the sliding plate to slide on the base plate.

[0011] In the above structure, the driving assembly includes a driving motor, a gear and a rack, the rack is arranged at the top of the sliding plate close to the side plate, the gear is arranged on the side plate and meshes with the rack, the driving motor is fixedly arranged on the side plate, and the output shaft of the driving motor is connected to the gears located on both side plates, and is used to drive the two gears to rotate.

[0012] In the above structure, a reinforcing rib is fixedly connected to the top of the sliding plate, and the rack is fixedly connected to the top of the reinforcing rib close to the side plate.

[0013] The reinforcing rib is in an "L"-shaped structure, and one side of the reinforcing rib is fixedly connected to the supporting plate.

[0014] In the above structure, a slide rail is arranged on the bottom plate, a slider is slidably arranged on the slide rail, and the slide plate is fixedly connected to the slider.

[0015] In the above structure, a limit member for limiting the movable range of the sliding plate is provided on the base plate, and the limit member includes a limit groove, and the limit groove is provided on the upper surface of the base plate, and proximity switches located at both ends of the movable range of the sliding plate are provided on the limit groove. A fixing member is provided on the side of the sliding plate facing the base plate, and the proximity switch is used to sense the position of the fixing member.

[0016] In the above structure, the driving mechanism further includes a circuit protection belt, one end of which is connected to the sliding plate, and the other end of which is connected to the bottom plate.

[0017] The beneficial effect of the utility model is that by arranging a driving mechanism at both ends of the winding roller, the distance between the pressure roller and the winding roller can change with the diameter of the film roll, the pressure roller always presses the film against the surface of the winding roller, and the distance between the pressure roller and the previous roller is kept constant, effectively reducing the occurrence of wrinkles caused by insufficient film tension due to the increase in the distance between the roller and the pressure roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of one side of the utility model;

[0021] Figure 3 yes Figure 1 A magnified schematic diagram of the middle part;

[0022] Figure 4 yes Figure 1 Enlarged schematic diagram of part B in the middle.

[0023] Figure numerals: 1. side panel; 2. winding roller; 21. support plate; 3. passing roller; 4. pressure roller; 5. driving mechanism; 51. bottom plate; 511. slide rail; 512. slider; 52. sliding plate; 521. reinforcing rib; 522. fixing piece; 53. driving assembly; 531. driving motor; 532. rack; 533. gear; 6. limiting groove; 61. proximity switch; 7. line protection belt; 8. unwinding roller. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-4 The utility model is further described.

[0025] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0026] Reference Figures 1 to 4A rewinding machine includes an unwinding roller 8, a side plate 1, a winding roller 2, a pressure roller 4 and a plurality of rollers 3, wherein the winding roller 2 is used to wind up a film; the pressure roller 4 is arranged on the side plate 1 and is used to press the winding roller 2 or the film roll on the winding roller 2; the plurality of rollers 3 are arranged between the pressure roller 4 and the unwinding roller 8 to ensure that the film roll is neat during the winding process. A driving mechanism 5 is arranged at both ends of the winding roller 2, and the driving mechanism 5 is used to drive the winding roller 2 to move toward or away from the pressure roller 4. The pressure roller 4 is provided with a sensor, which can sense that the surface of the winding roller 2 is close to the pressure roller 4 and send a sensing signal to the driving mechanism 5. In this embodiment, the induction element is used to sense the size of the pressure signal between the winding roller 2 and the pressure roller 4, that is, when the size of the film roll on the winding roller 2 increases and the pressure on the pressure roller 4 is greater than the set maximum value, the induction element feeds back the signal to the driving mechanism 5, and the driving mechanism 5 drives the winding roller 2 to move away from the pressure roller 4 until the induction element senses the minimum value of the pressure signal, and then the winding roller 2 stops moving. Such a setting can adjust the position of the winding roller 2 in real time according to the thickness of the film roll during the winding process. Compared with adjusting the position of the pressure roller 4, the movement of the pressure roller 4 is converted into the movement of the winding roller 2, which can ensure that the winding roller 2 and the pressure roller 4 remain in contact, while keeping a suitable distance between the pressure roller 4 and the previous roller 3 unchanged, ensuring that the film is tensioned on the rewinding machine roller system, and effectively reducing the possibility of wrinkles in the film when winding.

[0027] Reference Figure 1 and Figure 2 There are two side plates 1, which are arranged at the two ends of the rewinding roller system. The two ends of the pressure roller 4 are rotatably connected to the side plates 1 on both sides. The unwinding roller 8 is arranged on one side of the two side plates 1. The winding roller 2 is arranged on the side of the two side plates 1 away from the unwinding roller 8. The two ends of a plurality of rollers 3 are rotatably connected to the side plates 1 on both sides. The winding roller 2 includes a roller shaft and a rotating driving member arranged at both ends of the roller shaft. The rotating driving member drives the winding roller 2 to rotate to perform the film winding work. The rotating driving member is fixedly connected to a bearing seat, and the driving mechanism 5 is connected to the bearing seats at both ends of the winding roller 2.

[0028] The bearing seats on both sides of the winding roller 2 are fixedly connected with support plates 21, and the driving mechanism 5 includes a bottom plate 51, a sliding plate 52 and a driving assembly 53. The sliding plate 52 is slidably arranged on the bottom plate 51, and the driving assembly 53 is used to drive the sliding plate 52 to slide on the bottom plate 51. The two support plates 21 are respectively fixedly connected to the upper surface of the sliding plate 52 on the corresponding side, and the support plates 21 and the sliding plates 52 are arranged perpendicularly. In this embodiment, a slide rail 511 is fixedly connected to the bottom plate 51, a slider 512 is slidably connected to the slide rail 511, and the bottom of the sliding plate 52 is fixedly connected to the slider 512.

[0029] Reference Figures 1 to 3The driving assembly 53 includes a driving motor 531, a rack 532 and a gear 533. The rack 532 is fixedly connected to the top of the sliding plate 52 near the side plate 1. The gear 533 is arranged on the side plate 1, and the gear 533 on the same side is meshed with the rack 532. The driving motor 531 is fixedly arranged on one side plate 1, and the output shaft of the driving motor 531 is connected to the gear 533 on both side plates 1. The driving motor 531 drives the gears 533 on both sides to rotate and drive the rack 532 to move, thereby driving the sliding plate 52 to slide on the bottom plate 51, so as to realize the movement of the winding roller 2 towards or away from the pressing roller 4. In this embodiment, a reinforcing rib 521 is fixedly connected to the top of the sliding plate 52. The reinforcing rib 521 is in an "L" shape. One of the two sides perpendicular to the reinforcing rib 521 is fixedly connected to the top of the sliding plate 52, and the other side is fixedly connected to the support plate 21. The rack 532 is fixedly connected to the top of the reinforcing rib 521 near the side plate 1. The reinforcement ribs 521 are provided to strengthen the connection strength between the support plate 21 and the sliding plate 52 , thereby effectively ensuring the connection reliability between the driving mechanism 5 and the winding roller 2 .

[0030] The pressure roller 4 is provided with a sensing element, specifically, the sensing element is a pressure sensor (not shown in the figure), which is provided on the side of the pressure roller 4 close to the winding roller 2. The pressure sensor is used to sense the pressure between the winding roller 2 and the pressure roller 4, and transmit the pressure signal to the drive motor 531. During the film winding process, when the film roll on the winding roller 2 becomes larger as it is wound, the pressure between the surface of the film roll and the pressure roller 4 gradually increases. When the pressure signal sensed by the pressure sensor reaches a predetermined maximum value, the pressure signal is fed back to the drive motor 531. The drive motor 531 receives the signal and controls the winding roller 2 to move away from the pressure roller 4. At this time, the pressure between the winding roller 2 and the film roll gradually decreases until the pressure signal sensed by the pressure sensor reaches a predetermined minimum value, and the drive motor 531 stops. By providing a movable winding roller 2, the position of the winding roller 2 is adjusted in real time during the rewinding process, which effectively reduces the possibility of film wrinkling during the rewinding process. It should be noted that the pressure range that triggers the pressure sensor (ie, the predetermined maximum value and the predetermined minimum value) can be set according to actual applications and is not specifically limited here.

[0031] Reference Figures 1 to 4, a limiter is provided on the bottom plate 51, and the limiter is used to limit the sliding range of the sliding plate 52. The limiter includes a limiter slot 6, and the limiter slot 6 is fixedly provided in the middle of the bottom plate 51 on the side facing the sliding plate 52, and the length direction of the limiter slot 6 is parallel to the length direction of the slide rail 511. Two proximity switches 61 are fixedly provided at both ends of the limiter slot 6, and the two proximity switches 61 are respectively located at the two ends of the maximum range of motion in the sliding direction of the sliding plate 52, that is, the positions of the two proximity switches 61 correspond to the farthest distances of the sliding plate 52 moving forward and backward. A fixing member 522 is fixedly provided on the side of the sliding plate 52 facing the bottom plate 51, and the second switch is used to sense the position of the fixing member 522. When the drive motor 531 drives the winding roller 2 to move toward or away from the pressure roller 4 until the proximity switches 61 at both ends sense the fixing member 522, the proximity switches 61 send a sensing signal to the drive motor 531 to control the drive motor 531 to stop moving. The fixing member 522 cooperates with the proximity switches 61 at both ends to limit the range of motion of the sliding plate 52 , thereby effectively preventing the sliding plate 52 from sliding off the slide rail 511 due to excessive sliding distance.

[0032] Reference Figure 1 and Figure 2 The driving mechanism 5 also includes a line protection belt 7, one end of which is fixedly connected to the sliding plate 52, and the other end is fixedly connected to the sliding plate 52. The line protection belt 7 is a crawler structure and can bend with the movement of the sliding plate 52 to protect the wires, which is beneficial to ensuring the service life of the wires.

[0033] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A rewinding machine, characterized in that: It includes a side plate, a reeling roller, a reeling roller for reeling up the film, and a pressure roller rotatably installed on the side plate for pressing the reeling roller, a plurality of rollers are arranged between the reeling roller and the pressure roller, and a driving mechanism is arranged at both ends of the reeling roller, and the driving mechanism is used to drive the reeling roller to move toward or away from the pressure roller.

2. A rewinding machine according to claim 1, characterized in that: The pressure roller is provided with a sensing element, and when the sensing element senses that the winding roller is close to the surface of the pressure roller, the sensing signal is fed back to the driving mechanism.

3. A rewinding machine according to claim 2, characterized in that: The sensing element is a pressure sensor, and the pressure sensor is arranged on a side of the pressure roller close to the winding roller.

4. A rewinding machine according to any one of claims 1 to 3, characterized in that: The driving mechanism includes a base plate arranged on both sides of the winding roller, a driving component and a sliding plate slidably arranged on the base plate, a supporting plate is arranged on the sliding plate, and the two side ends of the winding roller are installed on the supporting plate. The driving component is used to drive the sliding plate to slide on the base plate.

5. A rewinding machine according to claim 4, characterized in that: The driving assembly includes a driving motor, a gear and a rack. The rack is arranged at the top of the sliding plate close to the side plate. The gear is arranged on the side plate and meshes with the rack. The driving motor is fixedly arranged on the side plate, and the output shaft of the driving motor is connected to the gears located on both side plates and is used to drive the two gears to rotate.

6. A rewinding machine according to claim 5, characterized in that: The top of the sliding plate is fixedly connected with a reinforcing rib, and the rack is fixedly connected to the top of the reinforcing rib close to one side of the side plate.

7. A rewinding machine according to claim 6, characterized in that: The reinforcing rib is in an "L"-shaped structure, and one side of the reinforcing rib is fixedly connected to the support plate.

8. A rewinding machine according to claim 4, characterized in that: The bottom plate is provided with a slide rail, a slider is slidably provided on the slide rail, and the slide plate is fixedly connected to the slider.

9. A rewinding machine according to claim 4, characterized in that: The bottom plate is provided with a limit piece for limiting the movable range of the sliding plate, the limit piece includes a limit groove, the limit groove is provided on the upper surface of the bottom plate, the limit groove is provided with proximity switches located at both ends of the movable range of the sliding plate, the sliding plate is provided with a fixing piece on the side facing the bottom plate, and the proximity switch is used to sense the position of the fixing piece.

10. A rewinding machine according to claim 4, characterized in that: The driving mechanism further includes a circuit protection belt, one end of which is connected to the sliding plate, and the other end of which is connected to the bottom plate.

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