Automatic winding and roll changing device for membrane material

Abstract

The utility model discloses an automatic winding and roll changing device for membrane materials, which comprises a turnover device and two groups of winding core tubes which are arranged on the turnover device and are standby for each other, and the turnover device comprises a rotating shaft which rotates around the axis of the rotating shaft. The two groups of winding core tubes are symmetrically arranged about the axis of the rotating shaft and rotate by taking the rotating shaft as a rotating center to change rolls; the film cutting mechanism and the electrostatic generator move between the two sets of winding core pipes, the film cutting mechanism comprises a cutter moving in the axial direction of the winding core pipes, and the electrostatic generator discharges electricity to the winding core pipes through an electrostatic rod so that a film material cut by the cutter can be adsorbed to the winding core pipes in the roll changing process. According to the structure, a rubberizing mechanism does not need to be used, the operation process is simplified, and meanwhile possible additional damage to the membrane material is avoided.

Description

Technical Field

[0001] The utility model relates to the field of mechanical automation, in particular to an automatic film material winding and changing device. Background Art

[0002] In the prior art, the winding and changing of membrane materials usually requires manual operation or the use of complex mechanical devices. Manual operation is inefficient and may cause damage to the membrane material. In the existing mechanical device, when the length of the membrane material wound by the winding core tube reaches the set value, the winding core tube needs to be replaced for winding. When changing the roll, it is often necessary to use a glue sticking mechanism to first attach the membrane material to the winding core tube, which not only increases the complexity of the device, but may also cause additional damage to the membrane material. Therefore, it is necessary to develop a new automatic winding and changing device for membrane materials to improve work efficiency and protect the membrane material. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a film material automatic winding and changing device.

[0004] The technical solution of the utility model is: comprising a turning device and two groups of winding core tubes arranged on the turning device and serving as backup for each other, the turning device comprising a rotating shaft rotating around its own axis, the two groups of winding core tubes being symmetrically arranged about the axis of the rotating shaft and rotating around the rotating shaft as the rotation center to change the roll;

[0005] It also includes a film cutting mechanism and an electrostatic generator that move between two groups of winding core tubes. The film cutting mechanism includes a cutting knife that moves along the axial direction of the winding core tube, and the electrostatic generator includes an electrostatic rod that extends along the core axis of the winding core tube. The electrostatic generator discharges the winding core tube through the electrostatic rod so that the film material cut by the cutting knife is adsorbed on the winding core tube when changing the roll.

[0006] A further technical solution is: the winding core tube includes a main winding core tube located at the film material winding position, and a rubber roller that moves relative to the main winding core tube is also provided on one side of the main winding core tube, and the rubber roller is parallel to the axis of the main winding core tube.

[0007] A further technical solution is that the rubber roller moves under the drive of the pressure roller driving member, and the rubber roller and the pressure roller driving member are connected through a transmission structure.

[0008] Its further technical solution is: the transmission structure includes a rotating rod connected to the output end of the pressure roller driving component and two groups of transmission rods connected to the two ends of the rotating rod through synchronous wheels, and the two ends of the rubber roller are connected to the two groups of transmission rods through a screw structure.

[0009] A further technical solution is: the screw rod structure comprises a nut fitting that moves axially along the transmission rod, and a reinforcing connecting rod is provided between two groups of nut fittings.

[0010] A further technical solution thereof is as follows: A film cutting support is provided on one side of the flipping device. The film cutting mechanism is rotatably connected to the film cutting support through a swinging mechanism. The swinging mechanism includes a swing shaft that rotates around its own axis and two groups of swing arms arranged side by side on the swing shaft. The free ends of the two groups of swing arms are respectively connected to both ends of the film cutting mechanism.

[0011] A further technical solution thereof is as follows: A first cylinder with an output end stroke perpendicular to the width direction of the film material is provided at the free end of the swing arm, and a second cylinder with an output end stroke along the vertical direction is provided at the output end of the first cylinder. The film cutting mechanism is arranged at the stroke output end of the second cylinder.

[0012] A further technical solution thereof is as follows: A synchronous shaft is provided between the output ends of the two groups of first cylinders, and the two groups of second cylinders are respectively fixedly arranged at both ends of the synchronous shaft.

[0013] A further technical solution thereof is as follows: A scraper extending along the axial direction of the main winding core tube is further provided on the film cutting mechanism, and the length of the scraper is not less than the width of the film material.

[0014] A further technical solution thereof is as follows: A tension roller is further provided on the film material incoming side along the rubber roller. The two ends of the tension roller are respectively adjusted in the vertical and horizontal directions through adjusting lead screws.

[0015] The beneficial technical effect of the present utility model is as follows: The two mutually backup winding core tubes are flipped and displaced through the rotating rotating shaft, simplifying the winding change operation; and the winding core tube is discharged through the cooperation of the cutting knife and the static electricity bar of the static electricity generator, so that the cut film material is adsorbed on the winding core tube to complete the winding change; the whole structure does not need to use a gluing mechanism, simplifies the operation process, and also avoids possible additional damage to the film material. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model from the first perspective;

[0017] Figure 2 is a schematic diagram of the overall structure of the present utility model from the second perspective;

[0018] Figure 3 is a schematic diagram of the flipping device of the present utility model;

[0019] Figure 4 is a schematic diagram of the film cutting mechanism and the swinging mechanism of the present utility model;

[0020] Figure 5 is the present utility model Figure 4 partial enlarged schematic diagram;

[0021] Figure 6It is a schematic diagram of the pressure roller mechanism of the present utility model;

[0022] Figure 7 It is a schematic diagram of the detection component of the present utility model;

[0023] Figure 8 It is a schematic diagram of the film material path of the present utility model;

[0024] Figure 9 It is a schematic diagram of the positions of the tension roller and the static electricity bar of the present utility model;

[0025] 1. Winding core tube, 11. Main winding core tube; 2. Transition roller; 3. Film cutting mechanism; 31. Cutting knife; 32. Cutting drive member; 33. Scraper; 4. Flipping device; 41. Rotation shaft; 5. Swing mechanism; 51. Swing arm; 52. Swing drive member; 53. Swing shaft; 54. First air cylinder; 55. Second air cylinder; 56. Synchronous shaft; 6. Pressure roller mechanism; 61. Rubber roller; 62. Pressure roller drive member; 63. Rotating rod; 64. Synchronous pulley; 65. Transmission rod; 66. Ultra-thin air cylinder; 67. Reinforcing connecting rod; 7. Detection component; 71. Proximity switch; 72. Inductive sheet; 8. Tension roller; 81. Adjusting screw rod; 9. Static electricity bar. Detailed implementation manners

[0026] In order to be able to more clearly understand the technical means of the present utility model and implement it according to the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but do not limit the scope of the present utility model.

[0027] As Figures 1 to 2 shown, a film material automatic winding and rewinding device of the present utility model includes at least two winding core tubes 1, a plurality of transition rollers 2, and a film cutting mechanism 3 disposed between the two winding core tubes 1. The winding core tubes 1 and the transition rollers 2 are all axially parallel. The film material needs to be guided by a plurality of transition rollers 2 along the film running path and then wound around the winding core tube 1 for winding. When the film material wound on the winding core tube 1 reaches the set length, the film material is cut off by the film cutting mechanism 3 and transferred to another winding core tube 1 for continuous winding.

[0028] Specifically, as Figure 3 shown, in this embodiment, there are two groups of the winding core tubes 1, including a main winding core tube 11 located at the film material winding position and a spare winding core tube located at the spare winding position. The two groups of winding core tubes 1 are disposed on a flipping device 4. The flipping device 4 includes a rotation shaft 41 and a flipping drive member that drives the rotation shaft 41 to rotate around its own axis. The two groups of winding core tubes 1 are symmetrically disposed with respect to the axis of the rotation shaft 41 and are rotatably connected with the rotation shaft 41 as the rotation center. The main winding core tube 11 and the spare winding core tube are respectively flipped under the drive of the rotation shaft 41 and alternately located at the film material winding position and the spare winding position.

[0029] The flipping device 4 is also provided with two transition rollers 2 , which are symmetrically arranged about the axis of the rotating shaft 41 and are rotatably connected with the rotating shaft 41 as the rotation center.

[0030] The film cutting mechanism 3 moves between the two winding core tubes 1, and is used to cut the film material being wound, and transfer the film material from the main winding core tube 11 that has completed winding to the standby winding core tube. Driven by the rotation of the rotating shaft 41, the standby winding core tube flips to the film material winding position and rotates around its core shaft to start winding the film material, thereby realizing automatic roll changing of the film material.

[0031] Specifically, Figures 4 to 5 The film cutting mechanism 3 includes a cutting knife 31 and a cutting driving member 32 for driving the cutting knife 31 to move along the axial direction of the main winding core tube 11. The cutting knife 31 is connected to the output end of the cutting driving member 32 through a cutting knife seat.

[0032] A film cutting bracket is provided on one side of the flip device 4, and the film cutting mechanism 3 is rotatably connected to the film cutting bracket through a swing mechanism 5. The swing mechanism 5 includes a swing shaft 53 that rotates around its own axis and two groups of swing arms 51 arranged side by side on the swing shaft 53, and the free ends of the two groups of swing arms 51 are respectively connected to the two ends of the film cutting mechanism 3. The swing shaft is driven to rotate by a swing driving member 52 and is rotatably connected to the film cutting bracket through bearings at both ends. Specifically, the free ends of the two groups of swing arms 51 are provided with a cylinder driving assembly, and the cylinder driving assembly includes a first cylinder 54 whose output end stroke is perpendicular to the width direction of the film material and a second cylinder 55 arranged at the output end of the first cylinder 54 and whose output end stroke is in the vertical direction. The film cutting mechanism 3 is arranged at the stroke output end of the second cylinder 55. Driven by the swing driving member 52, the film cutting mechanism 3 swings with the swing arm 51, avoids the film material when the film material is rolled up, and cuts the film material after the film material is rolled up.

[0033] In order to ensure the synchronous coordination of the strokes of the two groups of first cylinders 54 , a synchronization shaft 56 is provided between the output ends of the two groups of first cylinders 54 , and the two groups of second cylinders 55 are fixedly disposed at both ends of the synchronization shaft 56 .

[0034] Furthermore, the film cutting mechanism 3 is also provided with a scraper 33 extending along the axial direction of the main winding core tube 11. The length of the scraper 33 is not less than the width of the film material. When the cutter 31 cuts the film material, the scraper 33 cooperates to smooth the film material on the spare winding core tube to achieve efficient cutting.

[0035] Furthermore, a pressing roller mechanism 6 is provided on one side close to the main winding core tube 11. Figures 6 to 7The pressing roller mechanism 6 includes a rubber roller 61 that moves relative to the main winding core tube 11. The core axis of the rubber roller 61 is located in the same plane as the core axes of the main winding core tube 11 and the spare winding core tube. The roller surface of the rubber roller 61 is made of rubber.

[0036] In this embodiment, Figure 8 As described above, when the main winding core tube 11 is winding, the film material passes under the rubber roller 61, then passes over the main winding core tube 11, and is wound on the main winding core shaft. At this time, the distance between the rubber roller 61 and the main winding core tube 11 can be adjusted to adjust the wrap angle between the film material and the main winding core tube 11; when the length of the wound film material reaches the set value, the main winding core tube 11 is driven by the rotating drive member to flip from the film material winding position to the standby winding position for film material cutting. At this time, the standby winding core tube is located at the film material winding position and takes turns to become the main winding core tube 11. The rubber roller 61 moves toward the main winding core tube 11 and presses the main winding core tube 11, so that a larger covering surface is formed between the film surface and the main winding core tube 11. After the film material is cut, it is wound on the main winding core tube 11.

[0037] The rubber roller 61 moves relative to the main winding core tube 11 under the drive of the roller driving assembly, and the roller driving assembly includes a roller driving member 62 fixedly arranged on the film cutting support, a rotating rod 63 fixedly connected to the output end of the roller driving member 62, and two groups of transmission rods 65 respectively connected to the two ends of the rotating rod 63 through synchronous wheels 64. The two ends of the rotating rod 63 are respectively connected to the film cutting support through bearings. The synchronous wheel 64 includes a driving wheel arranged on the rotating rod 63 and a driven wheel rotating under the drive of the driving wheel, and the driving wheel is meshed with the driven wheel; the driven wheel drives the transmission rod 65 to rotate, and the structure between the two ends of the rubber roller 61 and the two groups of transmission rods 65 adopts a screw structure. Under the drive of the roller driving member 62, the rotating rod 63 rotates to drive the transmission rod 65 to rotate, thereby driving the rubber roller 61 to move axially along the transmission rod 65.

[0038] In this embodiment, a connecting plate is provided on the nut fitting of the screw rod structure, an ultra-thin cylinder 66 is fixed on the connecting plate, and both ends of the rubber roller 61 are respectively connected to the output ends of the ultra-thin cylinder 66 on both sides, so as to achieve precise control of short stroke.

[0039] Furthermore, the film cutting bracket is provided with slide rail pairs corresponding to the two groups of transmission rods 65 respectively, and the connecting plate is slidably connected to the film cutting bracket through the slide rail pairs. The radial force of the transmission rod 65 is avoided and reduced through the bearing effect of the slide rail pairs.

[0040] To enhance the synchronization of the movement of both ends of the rubber roller 61 relative to the main core tube 11, a reinforcing connecting rod 67 is provided between the two sets of nut fittings. Under the connection of the reinforcing connecting rod 67, the two sets of nut fittings can maintain strict synchronization when moving axially along the transmission rod 65, so as to drive the synchronous movement of both ends of the rubber roller 61.

[0041] A stroke detection assembly 7 is provided below the pressure roller drive assembly for detecting the position distance of the rubber roller 61 moving relative to the main core tube 11, including a proximity switch 71 fixedly arranged on the film cutting bracket and an induction sheet 72 moving with the nut. When the nut drives the rubber roller 61 to move to the proximity switch 71, the rubber roller 61 presses the main core tube 11 tightly, and at this time the pressure roller drive 62 responds in a timely manner.

[0042] Two sets of transition rollers 2 and tension rollers 8 are successively arranged along the film material incoming side of the rubber roller 61. The two sets of transition rollers 2 are arranged at intervals, so that the film material path passing through the transition rollers 2 is in an S shape. The tension roller 8 is located between the rubber roller 61 and the transition roller 2. After the film material bypasses the two transition rollers 2 in sequence along the forward direction, it bypasses below the tension roller 8 and the rubber roller 61, and then after being wound on the main winding shaft, it bypasses above the transition roller 2 on the flipping device 4 and is cut by the film cutting mechanism 3.

[0043] To ensure the uniform tension of the film material along the width direction during the winding process, adjusting screws 81 with the movement direction along the vertical direction and adjusting screws 81 with the movement direction along the horizontal direction are respectively provided at both ends of the tension roller 8, as Figure 9 。

[0044] Furthermore, an electrostatic bar 9 extending along the core axis direction of the main core tube 11 is provided below the main core tube 11 at the film material winding position. The electrostatic bar 9 discharges electricity to the main core tube 11 through an electrostatic generator, and cooperates with the rubber roller 61 to press the film material tightly on the main core tube 11, so that the cut film material is automatically adsorbed on the main core tube 11.

[0045] The working principle of this structure is: when the winding length of the film material on the main core tube 11 reaches the set length, the main core tube 11 is flipped to the backup winding position by the flipping device 4, and the backup core tube is flipped to the film material winding position to become the main core tube 11. At this time, the induction sheet 72 moves to the proximity switch 71. Driven by the swing drive 52, the film cutting mechanism 3 swings to the film material waiting-to-be-cut position by the swing mechanism 5 to wait for cutting. At the same time, the electrostatic bar 9 moves below the main core tube 11, and the electrostatic generator discharges electricity to the film material so that the main core tube 11 and the film material have the ability to adsorb each other. After the squeegee 33 cooperates to smooth the film material on the main core tube 11, the cutting knife 31 starts to cut. After the cutting is completed, the film cutting mechanism 3 withdraws through the swing mechanism 5, and at the same time, the distance between the rubber roller 61 and the main core tube 11 is adjusted to adjust the wrap angle between the film material and the main core tube 11 within the set range.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An automatic winding and rewinding device for a film material, characterized in that: The invention comprises a turning device (4) and two groups of winding core tubes (1) arranged on the turning device (4) and serving as backup for each other, wherein the turning device (4) comprises a rotating shaft (41) rotating around its own axis, and the two groups of winding core tubes (1) are symmetrically arranged about the axis of the rotating shaft (41) and rotate around the rotating shaft (41) as the rotation center to change the roll; The invention also comprises a film cutting mechanism (3) and an electrostatic generator which move between two groups of winding core tubes (1); the film cutting mechanism (3) comprises a cutting knife (31) which moves along the axial direction of the winding core tube (1); the electrostatic generator comprises an electrostatic rod (9) which extends along the core axis direction of the winding core tube (1); the electrostatic generator discharges the winding core tube (1) through the electrostatic rod (9) so that the film material cut by the cutting knife (31) is adsorbed on the winding core tube (1) when changing the roll.

2. The automatic winding and rewinding device for film materials according to claim 1, characterized in that: The winding core tube (1) comprises a main winding core tube (11) located at the film material winding position, and a rubber roller (61) movable relative to the main winding core tube (11) is also provided on one side of the main winding core tube (11), and the rubber roller (61) is axially parallel to the main winding core tube (11).

3. The automatic winding and roll-changing device for a film material according to claim 2, characterized in that: The rubber roller (61) moves under the drive of the pressure roller driving member (62), and the rubber roller (61) and the pressure roller driving member (62) are connected to each other via a transmission structure.

4. The automatic winding and roll-changing device for a film material according to claim 3, characterized in that: The transmission structure comprises a rotating rod (63) connected to the output end of the pressure roller driving member (62) and two groups of transmission rods (65) respectively connected to the two ends of the rotating rod (63) through synchronous wheels (64); the two ends of the rubber roller (61) are connected to the two groups of transmission rods (65) through a screw structure.

5. The automatic winding and roll-changing device for a film material according to claim 4, characterized in that: The screw rod structure comprises a nut fitting that moves axially along the transmission rod (65), and a reinforcing connecting rod (67) is provided between two groups of nut fittings.

6. The automatic winding and rewinding device for film materials according to claim 1, characterized in that: A film cutting support is provided on one side of the flipping device (4), and the film cutting mechanism (3) is rotatably connected to the film cutting support via a swing mechanism (5). The swing mechanism (5) comprises a swing shaft (53) that rotates around its own axis and two groups of swing arms (51) arranged side by side on the swing shaft (53), and the free ends of the two groups of swing arms (51) are respectively connected to the two ends of the film cutting mechanism (3).

7. The automatic winding and roll-changing device for a film material according to claim 1, characterized in that: The free end of the swing arm (51) is provided with a first cylinder (54) whose output end stroke is perpendicular to the width direction of the film material, and a second cylinder (55) which is arranged at the output end of the first cylinder (54) and whose output end stroke is in the vertical direction. The film cutting mechanism (3) is arranged at the stroke output end of the second cylinder (55).

8. The automatic winding and roll-changing device for film materials according to claim 7, characterized in that: A synchronization shaft (56) is provided between the output ends of the two groups of the first cylinders (54), and the two groups of the second cylinders (55) are respectively fixedly arranged at both ends of the synchronization shaft (56).

9. The automatic winding and roll-changing device for a film material according to claim 2, wherein: The film cutting mechanism (3) is also provided with a scraper (33) extending along the axial direction of the main winding core tube (11), and the length of the scraper (33) is not less than the width of the film material.

10. The automatic winding and roll-changing device for a film material according to claim 1, characterized in that: A tension roller (8) is also provided along the film material incoming side of the rubber roller (61), and the two ends of the tension roller (8) are respectively adjusted by adjusting the screw rod (81) to adjust the displacement of the tension roller (8) in the vertical direction and the horizontal direction.

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