Two-stage driving floating roller device

Abstract

The utility model discloses a two-stage driving floating roller device, which comprises a cross beam, a roller assembly, a synchronous driving shaft assembly, two groups of cylinder driving mechanisms and two groups of counterweight mechanisms, the two ends of the cross beam are connected with a rack, the two groups of cylinder driving mechanisms are arranged at the inner side end of the rack, and each cylinder driving mechanism comprises a stroke cylinder and an ultra-low friction cylinder. The ultra-low friction air cylinder is connected to the lower end of the stroke air cylinder, the roller assembly is parallel to the cross beam, the ultra-low friction air cylinder is connected with the roller assembly, the two balance weight mechanisms are arranged at the outer side end of the rack, the synchronous driving shaft assembly is installed on the cross beam, and the synchronous driving shaft assembly is installed on the cross beam. The two sides of the synchronous driving shaft assembly and the two sides of the roller assembly are connected with the balance weight mechanism. According to the floating roller device, the accurate control function of a floating roller tension system is not affected through two-stage driving, and meanwhile it can be guaranteed that the whole mechanism can move in a long distance in space.

Description

Technical Field

[0001] The utility model relates to the technical field of tension control, in particular to a two-stage driving floating roller device. Background Art

[0002] In the winding and reeling process of the diaphragm, the floating roller structure is an indispensable component of the tension control system, and the low or ultra-low friction cylinder in the floating roller structure is an indispensable guarantee for its precision and sensitivity; but in actual production applications, many special situations will be encountered. For example, the actual stroke required for the swing of the tension-controlled floating roller is very small, but when encountering some special occasions where the floating roller device needs to move a long distance, due to the stroke limitation of the ultra-low friction cylinder, only ordinary cylinders can be selected, which undoubtedly has a great impact on the sensitivity and precision of the tension system.

[0003] Therefore, it is necessary to provide a two-stage driving floating roller device to solve the above problems. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a two-stage drive floating roller device, which can ensure that the overall mechanism can move long distances in space while not affecting the precise control function of the floating roller tension system through the two-stage drive.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A two-stage driven floating roller device comprises a frame, a roller assembly mounted on the frame, and a cylinder driving mechanism, wherein both ends of the roller assembly are connected to the inner end of the frame, and both ends of the roller assembly are connected to the cylinder driving assembly, and the cylinder driving assembly is mounted on the inner end of the frame, and the cylinder driving mechanism comprises a stroke cylinder and an ultra-low friction cylinder, and the ultra-low friction cylinder is connected to the lower end of the stroke cylinder, and the ultra-low friction cylinder is connected to the roller assembly.

[0007] As a further improvement of the above technical solution, the floating roller device also includes a crossbeam, a synchronous drive shaft assembly and a counterweight mechanism, the two ends of the crossbeam are respectively connected to the frame, the synchronous drive shaft assembly is installed on the crossbeam, the counterweight mechanism is installed on the outer end of the frame, and both sides of the synchronous drive shaft assembly and the roller assembly are connected to the counterweight mechanism.

[0008] As a further improvement of the above technical solution, the roller assembly includes a roller body, two bearing seats and two connecting seats, the two ends of the roller body are respectively rotatably connected to the two bearing seats, the protruding end of the ultra-low friction cylinder is fixedly connected to the upper end of the bearing seat, the bearing seat is fixedly connected to the connecting seat, and the connecting seat is fixedly connected to the counterweight mechanism.

[0009] As a further improvement of the above technical solution, the synchronous drive shaft assembly includes a synchronous shaft and a plurality of bearing fixing seats, and the synchronous shaft is fixedly connected to the crossbeam through the plurality of bearing fixing seats, and both ends of the synchronous shaft are connected to the counterweight mechanism.

[0010] As a further improvement of the above technical solution, the cylinder drive mechanism also includes a linear guide, a first slider, a second slider and a cylinder connecting block, the stroke cylinder is fixedly connected to the frame, the linear guide is fixed to the frame, and the linear guide is arranged below the stroke cylinder, the first slider and the second slider are both connected to the linear guide, the first slider is arranged above the second slider, and the connecting seat is fixedly connected to the second slider, the cylinder connecting block is fixedly connected to the first slider, the protruding end of the stroke cylinder is connected to the upper end of the cylinder connecting block, and the ultra-low friction cylinder is fixedly installed at the lower end of the cylinder connecting block.

[0011] As a further improvement of the above technical solution, the counterweight mechanism includes a counterweight block, a transmission chain, a sprocket transmission assembly and a chain connecting member, the transmission chain is connected to the sprocket transmission assembly, the sprocket transmission assembly is installed on the frame, and the synchronization shaft is connected to the sprocket transmission assembly, the counterweight block and the chain connecting member are connected to the transmission chain, and the counterweight block and the chain connecting member are respectively arranged on both sides of the sprocket transmission assembly, and the chain connecting member is fixedly connected to the connecting seat.

[0012] As a further improvement of the above technical solution, the sprocket transmission assembly includes an upper sprocket, a lower sprocket, a transmission bearing, a rotating bearing and a mounting seat, the upper sprocket is connected to the lower sprocket via the transmission chain, the upper sprocket is connected to the synchronous shaft via the transmission bearing, the lower sprocket is connected to the rotating bearing, and the transmission bearing and the rotating bearing are fixedly connected to the frame via the mounting seat.

[0013] As a further improvement of the above technical solution, two slide grooves are provided at the side ends of the frame, and the two slide grooves are symmetrically arranged with the linear guide rail as the central axis, and the chain connecting member passes through the slide grooves and is fixedly connected to the connecting seat.

[0014] As a further improvement of the above technical solution, the chain connecting member is arranged in an inverted U-shaped structure.

[0015] As a further improvement of the above technical solution, the stroke cylinder is configured as a long-stroke cylinder with a lock.

[0016] The beneficial effect of the utility model is that the utility model adopts double cylinder drive, and sets a locked long-stroke cylinder to ensure that the overall floating roller device can move over a long stroke. At the same time, the floating roller device composed of an ultra-low friction cylinder ensures the accuracy of tension system control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural schematic diagram of the floating roller device of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the floating roller device of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the cylinder drive mechanism of the utility model.

[0021] : Illustrations: 1. frame; 11. slide; 2. crossbeam; 3. roller assembly; 31. roller body; 32. bearing seat; 33. connecting seat; 4. synchronous drive shaft assembly; 41. synchronous shaft; 42. bearing fixing seat; 5. cylinder drive mechanism; 51. stroke cylinder; 52. ultra-low friction cylinder; 53. linear guide; 54. first slider; 55. second slider; 56. cylinder connecting block; 57. fixing piece; 6. counterweight mechanism; 61. counterweight block; 62. transmission chain; 63. sprocket transmission assembly; 631. upper sprocket; 632. lower sprocket; 633. transmission bearing; 634. rotating bearing; 635. mounting seat; 64. chain connecting piece. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, 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 fact that according to the specific implementation situation, a better connection structure can be formed by adding or reducing connection accessories. For example, fixed connection / fixed installation can be selected according to the needs of screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods. For example, detachable connection can be selected according to the needs of screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods. The various technical features in the creation of the utility model can be combined interactively without conflicting with each other.

[0023] Reference Figure 1 , Figure 2 A two-stage driving floating roller device comprises a frame 1, a crossbeam 2, a roller assembly 3, a synchronous drive shaft assembly 4, a cylinder driving mechanism 5 and a counterweight mechanism 6. Both ends of the crossbeam 2 are fixedly connected to the frame 1, and two groups of the cylinder driving mechanisms 5 are arranged at the inner side ends of the frame 1, wherein the cylinder driving mechanism 5 comprises a stroke cylinder 51 and an ultra-low friction cylinder 52. The stroke cylinder 51 adopts a long-stroke cylinder with a lock, and the ultra-low friction cylinder 52 is connected to the lower end of the stroke cylinder 51. At the same time, the roller assembly 3 is arranged parallel to the crossbeam 2, and the ultra-low friction cylinder 52 Connected to the roller assembly 3, the stroke cylinder 51 serves as a primary drive to drive the overall ultra-low friction cylinder 52 and the roller assembly 3 to move up and down in a long stroke until the end cylinder locks the position; the two groups of the counterweight mechanisms 6 are arranged at the outer end of the frame 1, and the synchronous drive shaft assembly 4 is installed on the beam 2, and both ends of the synchronous drive shaft assembly 4 and the roller assembly 3 are connected to the counterweight mechanism 6, so that the ultra-low friction cylinder 52, the counterweight mechanism 6 and the synchronous drive shaft assembly 4 form a secondary floating roller control assembly, which ensures the closed-loop control of the diaphragm tension system and effectively improves the sensitivity and accuracy of the tension system.

[0024] Reference Figure 2 In the embodiment of the utility model, the roller assembly 3 includes a roller body 31, two bearing seats 32 and two connecting seats 33. The two ends of the roller body 31 are rotatably connected to the two bearing seats 32 respectively, so that the roller body 31 can rotate normally. The extended end of the ultra-low friction cylinder 52 is fixedly connected to the upper end of the bearing seat 32 to connect the roller body 31 with the ultra-low friction cylinder 52. The roller body 31 adopts a vertical up and down movement mode, using the weight of the roller body 31 to fall down, while the ultra-low friction cylinder 52 can pull up in the opposite direction, which can not only The tension formed on the wound material can also greatly improve the control accuracy, and the operation is simple. Only by adjusting the force of the ultra-low friction cylinder 52 can the tension required for films of different thicknesses and widths be met, effectively ensuring the quality of the product; the bearing seat 32 is fixedly connected to the connecting seat 33, and the connecting seat 33 is fixedly connected to the counterweight mechanism 6, connecting the roller assembly 3 and the counterweight mechanism 6 together. When the roller body 31 is adjusted, the counterweight mechanism 6 can effectively eliminate the gravity generated by the roller body 31 during the shaking process, thereby ensuring the accuracy of tension control.

[0025] Reference Figure 2In an embodiment of the utility model, the synchronous drive shaft assembly 4 includes a synchronous shaft 41 and a plurality of bearing fixing seats 42, and the synchronous shaft 41 is fixedly connected to the beam 2 through the plurality of bearing fixing seats 42, and both ends of the synchronous shaft 41 are connected to the counterweight mechanism 6. At the same time, the entire synchronous shaft 41 can be used to rotate synchronously with the counterweight mechanism 6, or multiple sections of the synchronous shaft 41 can be used to rotate synchronously with the counterweight mechanism 6 to ensure the consistency of diaphragm tension control, so that the counterweight mechanism 6 and the synchronous drive shaft assembly 4 and the ultra-low friction cylinder 52 form a secondary floating roller control of the roller assembly 3, thereby ensuring the closed-loop control of the diaphragm tension system.

[0026] Reference Figure 2 , Figure 3 In an embodiment of the utility model, the cylinder drive mechanism 5 further includes a linear guide 53, a first slider 54, a second slider 55, a cylinder connecting block 56 and a fixing member 57. The stroke cylinder 51 is fixedly connected to the frame 1 through the fixing member 57. The linear guide 53 is fixed to the frame 1, and the linear guide 53 is arranged below the stroke cylinder 51, and the first slider 54 and the second slider 55 are connected to the linear guide 53 in an up-and-down sliding manner. At the same time, the connecting seat 33 is fixedly connected to the second slider 55, and the cylinder connecting block 56 is fixedly connected to the first slider 54. The protruding end of the stroke cylinder 51 is connected to the upper end of the cylinder connecting block 56, and the ultra-low friction cylinder 52 is fixedly installed at the lower end of the cylinder connecting block 56, so that the roller assembly 3 and the ultra-low friction cylinder 52 are fixed on different sliders of the same guide rail, and the stroke cylinder 51 can drive the ultra-low friction cylinder 52 and the roller assembly 3 to move up and down in a long stroke, thereby realizing the primary drive control of the tension system.

[0027] Reference Figure 1 In an embodiment of the utility model, the counterweight mechanism 6 includes a counterweight block 61, a transmission chain 62, a sprocket transmission assembly 63 and a chain connector 64, wherein the transmission chain 62 is connected to the sprocket transmission assembly 63, the sprocket transmission assembly 63 is installed on the frame 1, and the synchronization shaft 41 is connected to the sprocket transmission assembly 63, the counterweight block 61 and the chain connector 64 are connected to the transmission chain 62, and the counterweight block 61 and the chain connector 64 are arranged on both sides of the sprocket transmission assembly 63, and the chain connector 64 is fixedly connected to the connecting seat 33 to ensure the synchronization of the movement of both sides of the transmission chain 62, so that the weight of the counterweight block 61 can eliminate the deadweight of the roller assembly 3, thereby further ensuring the fineness of the tension system control.

[0028] Specifically, the sprocket transmission assembly 63 includes an upper sprocket 631, a lower sprocket 632, a transmission bearing 633, a rotating bearing 634 and a mounting seat 635. The upper sprocket 631 and the lower sprocket 632 are arranged above and below the roller assembly 3. At the same time, the upper sprocket 631 and the lower sprocket 632 are connected through the transmission chain 62, so that the counterweight block 61 and the chain connecting member 64 connected on both sides of the transmission chain 62 move synchronously. At the same time, the upper sprocket 631 is connected to the synchronization shaft 41 through the transmission bearing 633, and the lower sprocket 632 is connected to the rotating bearing 634, so that the lower sprocket 632 can rotate synchronously with the upper sprocket 631. The transmission bearing 633 and the rotating bearing 634 are fixedly connected to the frame 1 through the mounting seat 635, and the counterweight mechanism 6 is fixed to the frame 1.

[0029] Reference Figure 2 In an embodiment of the utility model, the chain connector 64 is arranged in an inverted U-shaped structure, and two slide grooves 11 are arranged on the side ends of the frame 1, and the two slide grooves 11 are symmetrically arranged with the linear guide rail 53 as the central axis. The chain connector 64 passes through the slide groove 11 and is fixedly connected to the connecting seat 33, so that the counterweight mechanism 6 is connected to the roller assembly 3, so that the weight of the counterweight block 61 can eliminate the deadweight of the roller assembly 3, so as to control the external tension more accurately.

[0030] 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 two-stage driving floating roller device, characterized in that: It includes a frame, a roller assembly installed on the frame, and a cylinder drive mechanism, wherein both ends of the roller assembly are connected to the inner end of the frame, and both ends of the roller assembly are connected to the cylinder drive assembly, and the cylinder drive assembly is installed on the inner end of the frame, and the cylinder drive mechanism includes a stroke cylinder and an ultra-low friction cylinder, the ultra-low friction cylinder is connected to the lower end of the stroke cylinder, and the ultra-low friction cylinder is connected to the roller assembly.

2. A two-stage driving floating roller device according to claim 1, characterized in that: The floating roller device also includes a crossbeam, a synchronous drive shaft assembly and a counterweight mechanism, the two ends of the crossbeam are respectively connected to the frame, the synchronous drive shaft assembly is installed on the crossbeam, the outer ends of the frame are installed with the counterweight mechanism, and the two sides of the synchronous drive shaft assembly and the roller assembly are connected to the counterweight mechanism.

3. A two-stage driving floating roller device according to claim 2, characterized in that: The roller assembly includes a roller body, two bearing seats and two connecting seats. The two ends of the roller body are rotatably connected to the two bearing seats respectively. The protruding end of the ultra-low friction cylinder is fixedly connected to the upper end of the bearing seat. The bearing seat is fixedly connected to the connecting seat, and the connecting seat is fixedly connected to the counterweight mechanism.

4. A two-stage driving floating roller device according to claim 3, characterized in that: The synchronous drive shaft assembly includes a synchronous shaft and a plurality of bearing fixing seats, and the synchronous shaft is fixedly connected to the crossbeam through the plurality of bearing fixing seats, and both ends of the synchronous shaft are connected to the counterweight mechanism.

5. A two-stage driving floating roller device according to claim 4, characterized in that: The cylinder driving mechanism also includes a linear guide, a first slider, a second slider and a cylinder connecting block. The stroke cylinder is fixedly connected to the frame, the linear guide is fixed to the frame, and the linear guide is arranged below the stroke cylinder. The first slider and the second slider are both connected to the linear guide. The first slider is arranged above the second slider, and the connecting seat is fixedly connected to the second slider. The cylinder connecting block is fixedly connected to the first slider, the protruding end of the stroke cylinder is connected to the upper end of the cylinder connecting block, and the ultra-low friction cylinder is fixedly installed at the lower end of the cylinder connecting block.

6. A two-stage driving floating roller device according to claim 5, characterized in that: The counterweight mechanism includes a counterweight block, a transmission chain, a sprocket transmission assembly and a chain connecting piece. The transmission chain is connected to the sprocket transmission assembly, the sprocket transmission assembly is installed on the frame, and the synchronization shaft is connected to the sprocket transmission assembly. The counterweight block and the chain connecting piece are connected to the transmission chain, and the counterweight block and the chain connecting piece are respectively arranged on both sides of the sprocket transmission assembly, and the chain connecting piece is fixedly connected to the connecting seat.

7. A two-stage driving floating roller device according to claim 6, characterized in that: The sprocket transmission assembly includes an upper sprocket, a lower sprocket, a transmission bearing, a rotating bearing and a mounting seat. The upper sprocket is connected to the lower sprocket via the transmission chain, the upper sprocket is connected to the synchronous shaft via the transmission bearing, the lower sprocket is connected to the rotating bearing, and the transmission bearing and the rotating bearing are fixedly connected to the frame via the mounting seat.

8. A two-stage driving floating roller device according to claim 6, characterized in that: Two slide grooves are arranged at the side ends of the frame, and the two slide grooves are symmetrically arranged with the linear guide rail as the central axis, and the chain connecting member passes through the slide grooves and is fixedly connected to the connecting seat.

9. A two-stage driving floating roller device according to claim 6, characterized in that: The chain connecting piece is arranged in an inverted U-shaped structure.

10. The two-stage driving floating roller device according to claim 1, characterized in that: The stroke cylinder is configured as a long-stroke cylinder with a lock.

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