Automatic speed regulation driving back pressure roller mechanism

Abstract

The utility model discloses an automatic speed regulation driving back pressure roller mechanism which comprises a supporting frame, a supporting air cylinder, a driving roller, a driven roller, a first rotating frame, a back pressure roller and a back pressure roller driving assembly. The driving roller is rotationally connected with the supporting frame; hinge seats are symmetrically arranged on the supporting frame, and the first rotating frame is hinged to the hinge seats. One end of the supporting air cylinder is hinged to the supporting frame, the other end of the supporting air cylinder is hinged to the first rotating frame, the driven roller and the back pressure roller are rotationally connected to the first rotating frame, and the driven roller abuts against the back pressure roller; the back pressure roller is arranged on the side surface of the driven roller, so that the inner side and the outer side of the composite film are driven to rotate, the rotational inertia generated by the driven roller is reduced or counteracted, the influence of the rotational inertia of the driven roller on the composite film is reduced, the possibility of tensile deformation of the composite film is reduced, and finally the quality of the composite film is improved; and slippage of the surface of each layer of composite material film is avoided.

Description

Technical Field

[0001] The utility model relates to the field of composite film production and manufacturing equipment, and particularly relates to an automatic speed-regulating active back pressure roller mechanism. Background Art

[0002] During the implementation of the existing multi-layer film composite process, due to the influence of the anti-tensile performance of materials, the deflection and cylindricity of the roller system are extremely likely to affect the flatness of the substrate film walking. Therefore, a driven back pressure roller structure is introduced to reduce the bending deformation of the pressure roller. However, with the introduction of the back pressure roller structure, the load on the rubber roller is increased, which also increases the possibility of slippage on the surfaces of the composite material films of each layer. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide an automatic speed-regulating active back pressure roller mechanism for solving the above problems.

[0004] To solve the above technical problems, the technical solution of the utility model is: an automatic speed-regulating active back pressure roller mechanism, including a support frame, a support cylinder, a driving roller, a driven roller, a first rotating frame, a back pressure roller and a back pressure roller driving component; the support frame is arranged in parallel on both sides of the driving roller, and the driving roller is rotationally connected with the support frame; hinge seats are symmetrically arranged on the support frame, and the first rotating frame is hinged with the hinge seats; one end of the support cylinder is hinged with the support frame, and the other end is hinged with the first rotating frame. The driven roller and the back pressure roller are both rotationally connected to the first rotating frame, and the driven roller abuts against the back pressure roller; the back pressure roller driving component is fixedly installed on the first rotating frame, and the output end of the back pressure roller driving component is in mating connection with the back pressure roller.

[0005] Preferably, a second rotating frame is also hinged on the hinge seat, the driven roller is hinged and fixed on the second rotating frame, a rotating groove is formed on the first rotating frame, and a limiting pin passing through the rotating groove is arranged on the second rotating frame; a first through hole is arranged on the first rotating frame, a first threaded hole corresponding to the position of the first through hole is arranged on the second rotating frame, an adjusting bolt is arranged in the first through hole, and the end of the adjusting bolt enters the first threaded hole and is in threaded cooperation with the first threaded hole.

[0006] Preferably, the back pressure roller driving component includes a first synchronous pulley, a second synchronous pulley, a first synchronous belt and a motor; the motor is fixedly installed on the first rotating frame through a bracket, the first synchronous pulley is fixedly installed on the output shaft of the motor, the second synchronous pulley is arranged on the back pressure roller, and the first synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley.

[0007] Preferably, a driving assembly for the driving roller is further provided on the support frame; the output end of the driving assembly for the driving roller is connected to the driving roller to drive the driving roller to rotate.

[0008] Preferably, the driving roller, the driven roller and the back pressure roller are arranged in parallel.

[0009] Preferably, a first bearing is arranged between the driving roller and the support frame, a second bearing is arranged between the back pressure roller and the first rotating frame, and a third bearing is arranged between the driven roller and the second rotating frame.

[0010] Preferably, a retaining ring is arranged on the hinge seat, the retaining ring is located between the first rotating frame and the second rotating frame, and a limiting cover is fixedly installed on the end face of the hinge seat.

[0011] The technical effect of the present utility model is mainly reflected in that: by arranging a back pressure roller on the side of the driven roller, when the inner side of the composite film passes around the driving roller, and the outer side of the composite film abuts against the driven roller, the back pressure roller driving assembly drives the back pressure roller to rotate and drives the driven roller to rotate, so that both the inner and outer sides of the composite film have the power of external active rotation, thereby reducing or offsetting the rotational inertia generated by the driven roller, further reducing the influence of the rotational inertia of the driven roller on the composite film, reducing the possibility of stretching deformation of the composite film, finally improving the quality of the composite film, and avoiding slippage on the surfaces of the composite material films of each layer. Description of the Drawings

[0012] Figure 1 is the front view of the present utility model;

[0013] Figure 2 is the schematic diagram of the cooperation of the driving roller, the driven roller and the back pressure roller;

[0014] Figure 3 is Figure 1 the enlarged view of part A in

[0015] The reference numerals are: 1 - support frame, 11 - hinge seat, 12 - first bearing, 13 - retaining ring, 14 - limiting cover, 2 - support cylinder, 3 - driving roller, 4 - driven roller, 5 - first rotating frame, 51 - rotating groove, 52 - first through hole, 53 - adjusting bolt, 54 - second bearing, 6 - back pressure roller, 7 - back pressure roller driving assembly, 71 - first synchronous pulley, 72 - second synchronous pulley, 73 - first synchronous belt, 74 - motor, 8 - second rotating frame, 81 - limiting pin, 82 - first threaded hole, 83 - third bearing, 9 - driving assembly for the driving roller. Detailed Description of the Invention

[0016] The following further details the specific embodiments of the present utility model in conjunction with the drawings, so that the technical solutions of the present utility model are easier to understand and master.

[0017] In this embodiment, it should be understood that the orientation or positional relationship indicated by terms such as "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle part", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention.

[0018] In addition, in this specific embodiment, if the connection or fixing method between components is not specifically described, the connection or fixing method can be bolt fixing, pin fixing, or pin shaft connection, etc., which are commonly used in the prior art. Therefore, it will not be elaborated in this embodiment.

[0019] The present utility model provides an automatic speed regulation active back pressure roller 6 mechanism, as Figures 1-3 shown, which includes a support frame 1, a support cylinder 2, a driving roller 3, a driven roller 4, a first rotating frame 5, a back pressure roller 6, and a back pressure roller 6 driving assembly; the support frame 1 is arranged in parallel on both sides of the driving roller 3, and the driving roller 3 is rotatably connected to the support frame 1; hinge seats 11 are symmetrically arranged on the support frame 1, and the first rotating frame 5 is hinged to the hinge seats 11; one end of the support cylinder 2 is hinged to the support frame 1, and the other end is hinged to the first rotating frame 5. The support air pipe is used to push the first rotating frame 5 to rotate around the hinge seat 11, so that the driven roller 4 approaches the driving roller 3 and abuts against the composite film on the driving roller 3. The driven roller 4 and the back pressure roller 6 are both rotatably connected to the first rotating frame 5, and the driven roller 4 abuts against the back pressure roller 6; the back pressure roller 6 driving assembly is fixedly installed on the first rotating frame 5, and the output end of the back pressure roller 6 driving assembly is cooperatively connected with the back pressure roller 6. By arranging the back pressure roller 6 on the side of the driven roller 4, when the inner side of the composite film passes around the driving roller 3 and the outer side of the composite film abuts against the driven roller 4, the back pressure roller 6 driving assembly drives the back pressure roller 6 to rotate and drives the driven roller 4 to rotate, so that both the inner and outer sides of the composite film have the power of external active rotation, thereby reducing or offsetting the rotational inertia generated by the driven roller 4, further reducing the influence of the rotational inertia of the driven roller 4 on the composite film, reducing the possibility of stretching deformation of the composite film, and finally improving the quality of the composite film.

[0020] Preferably, a second rotating frame 8 is also hinged to the hinge seat 11. The driven roller 4 is hinged and fixed to the second rotating frame 8. A rotating groove 51 is formed in the first rotating frame 5. A limit pin 81 passing through the rotating groove 51 is arranged on the second rotating frame 8. A first through hole 52 is arranged on the first rotating frame 5. A first threaded hole 82 corresponding to the position of the first through hole 52 is arranged on the second rotating frame 8. An adjusting bolt 53 is arranged in the first through hole 52. The end of the adjusting bolt 53 enters the first threaded hole 82 and is in threaded cooperation with the first threaded hole 82. By rotating the adjusting bolt 53, the first rotating frame 5 and the second rotating frame 8 rotate around the hinge seat 11 as the center, so as to adjust the center distance between the driven roller 4 and the back pressure roller 6, and correspondingly adjust the pressure between the driven pipe and the back pressure roller 6.

[0021] Preferably, the back pressure roller 6 driving assembly includes a first synchronous pulley 71, a second synchronous pulley 72, a first synchronous belt 73 and a motor 74. The motor 74 is fixedly installed on the first rotating frame 5 through a bracket. The first synchronous pulley 71 is fixedly installed on the output shaft of the motor 74. The second synchronous pulley 72 is arranged on the back pressure roller 6. The first synchronous belt 73 is sleeved on the first synchronous pulley 71 and the second synchronous pulley 72. By adopting the transmission mode of the flexible synchronous belt and synchronous pulley for the back pressure roller 6 driving assembly, it is convenient for the hard connection when the back pressure roller 6 abuts against the driven roller 4 to cause deformation of the composite film.

[0022] Preferably, a driving assembly for the driving roller 3 is further arranged on the support frame 1. The output end of the driving assembly for the driving roller 3 is connected to the driving roller 3 for driving the driving roller 3 to rotate.

[0023] Preferably, the driving roller 3, the driven roller 4 and the back pressure roller 6 are all arranged in parallel, so as to avoid the composite film being deformed due to uneven force when the driving roller 3, the driven roller 4 and the back pressure roller 6 are not parallel when abutting against the composite film, resulting in damage or unqualified quality of the composite film.

[0024] Preferably, a first bearing 12 is arranged between the driving roller 3 and the support frame 1, a second bearing 54 is arranged between the back pressure roller 6 and the first rotating frame 5, and a third bearing 83 is arranged between the driven roller 4 and the second rotating frame 8.

[0025] Preferably, a retaining ring 13 is arranged on the hinge seat 11. The retaining ring 13 is located between the first rotating frame 5 and the second rotating frame 8 for spacing the first rotating frame 5 and the second rotating frame 8. A limit cover 14 is fixedly installed on the end face of the hinge seat 11 for limiting the first rotating frame 5 and the second rotating frame 8 in the axial direction of the hinge seat.

[0026] The technical effects of the present utility model are mainly reflected as follows: by arranging a back pressure roller on the side of the driven roller, when the inner side of the composite film winds around the driving roller and the outer side of the composite film abuts against the driven roller, the back pressure roller driving assembly drives the back pressure roller to rotate and drives the driven roller to rotate accordingly, so that both the inner and outer sides of the composite film have the power of external active rotation, thereby reducing or offsetting the rotational inertia generated by the driven roller, further reducing the influence of the rotational inertia of the driven roller on the composite film, reducing the possibility of stretching deformation of the composite film, ultimately improving the quality of the composite film, and avoiding slippage on the surfaces of the composite material films of each layer.

[0027] Certainly, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. An automatic speed regulation active back pressure roller mechanism, characterized in that, It includes a support frame, a support cylinder, a driving roller, a driven roller, a first rotating frame, a back pressure roller and a back pressure roller driving assembly; the support frames are arranged in parallel on both sides of the driving roller, and the driving roller is rotatably connected to the support frames; hinge seats are symmetrically arranged on the support frames, and the first rotating frame is hinged to the hinge seats; one end of the support cylinder is hinged to the support frame, and the other end is hinged to the first rotating frame. The driven roller and the back pressure roller are both rotatably connected to the first rotating frame, and the driven roller is in contact with the back pressure roller; the back pressure roller driving assembly is fixedly installed on the first rotating frame, and the output end of the back pressure roller driving assembly is cooperatively connected with the back pressure roller.

2. The automatic speed-regulating active back pressure roller mechanism according to claim 1, wherein, A second rotating frame is also hinged to the hinge seat, the driven roller is hinged and fixed to the second rotating frame, a rotating groove is formed on the first rotating frame, and a limiting pin passing through the rotating groove is arranged on the second rotating frame; a first through hole is arranged on the first rotating frame, a first threaded hole corresponding to the position of the first through hole is arranged on the second rotating frame, an adjusting bolt is arranged in the first through hole, and the end of the adjusting bolt enters the first threaded hole to be in threaded cooperation with the first threaded hole.

3. The automatic speed regulation active back pressure roller mechanism according to claim 2, characterized in that, The back pressure roller driving assembly includes a first synchronous pulley, a second synchronous pulley, a first synchronous belt and a motor; the motor is fixedly installed on the first rotating frame through a bracket, the first synchronous pulley is fixedly installed on the output shaft of the motor, the second synchronous pulley is arranged on the back pressure roller, and the first synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley.

4. The automatic speed-regulating active back pressure roller mechanism according to claim 3, characterized in that, A driving roller driving assembly is also arranged on the support frame; the output end of the driving roller driving assembly is connected to the driving roller to drive the driving roller to rotate.

5. An automatic speed-regulating active back pressure roller mechanism according to claim 1, wherein The driving roller, the driven roller and the back pressure roller are all arranged in parallel.

6. The automatic speed-regulating active back pressure roller mechanism according to claim 2, characterized in that, A first bearing is arranged between the driving roller and the support frame, a second bearing is arranged between the back pressure roller and the first rotating frame, and a third bearing is arranged between the driven roller and the second rotating frame.

7. The automatic speed regulation active back pressure roller mechanism according to claim 4, characterized in that, A retaining ring is arranged on the hinge seat, the retaining ring is located between the first rotating frame and the second rotating frame, and a limiting cover is fixedly installed on the end face of the hinge seat.

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