Tensioning structure of rewinding machine

Abstract

The utility model relates to a rewinding machine tensioning structure, and relates to the technical field of rewinding machines, the rewinding machine tensioning structure comprises a support, a rewinding roller and a feeding roller are rotatably installed on the support, a motor is fixedly installed on the support, and the output end of the motor is coaxially and fixedly connected with the rewinding roller; a tensioning mechanism is arranged on the bracket; the tensioning mechanism comprises a rotating disc which is embedded and rotatably installed on the support. The first tensioning rod is eccentrically connected to the end face of the rotating disc; the second tensioning rod is eccentrically connected to the end face of the rotating disc, and the first tensioning rod and the second tensioning rod are symmetrically arranged about the axis of the rotating disc; the transmission assembly is connected with the rotating disc, and the transmission assembly is used for driving the rotating disc to rotate; and the control assembly is connected with the transmission assembly, and the control assembly is used for controlling start and stop of the transmission assembly. The rewinding device has the effect of improving the rewinding quality of the materials.

Description

Technical Field

[0001] The present application relates to the technical field of rewinding machines, and in particular to a tensioning structure of a rewinding machine. Background Art

[0002] Rewinders are commonly used in the production of paper, film, fiber and other materials, and are used to wind materials into rolls. The tensioning mechanism is an important part of the rewinder. Its main function is to ensure that the material maintains proper tension during the winding process, preventing the material from loosening or over-stretching, thereby ensuring product quality.

[0003] The tensioning mechanism of existing rewinders often needs to be adjusted manually and cannot automatically adapt to changes in operation, which may cause unstable tension and thus affect the rewinding quality of the material. Utility Model Content

[0004] In order to improve the rewinding quality of materials, the present application provides a rewinding machine tensioning structure.

[0005] The present application provides a rewinding machine tensioning structure, which adopts the following technical solution:

[0006] A rewinding machine tensioning structure comprises a bracket, on which a rewinding roller and a reeling roller are rotatably mounted, a motor is fixedly mounted on the bracket, and an output end of the motor is coaxially fixedly connected with the rewinding roller; a tensioning mechanism is arranged on the bracket; the tensioning mechanism comprises:

[0007] A rotating disk, the rotating disk is embedded and rotatably mounted on the bracket;

[0008] a first tensioning rod, the first tensioning rod being eccentrically connected to an end surface of the rotating disk;

[0009] A second tensioning rod, wherein the second tensioning rod is eccentrically connected to an end surface of the rotating disk, and the first tensioning rod and the second tensioning rod are symmetrically arranged about an axis of the rotating disk;

[0010] A transmission assembly, the transmission assembly is connected to the rotating disk, and the transmission assembly is used to drive the rotating disk to rotate;

[0011] A control component is connected to the transmission component, and the control component is used to control the start and stop of the transmission component.

[0012] By adopting the above technical solution, the motor can drive the rewinding roller to rotate to rewind the material, and at the same time, the motor can drive the rotating disk to rotate through the transmission component, and the first tensioning rod and the second tensioning rod connected to the rotating disk rotate accordingly to tension the material. After the material is tensioned, the control component is started, so that the transmission between the transmission component and the rotating disk is disconnected, thereby realizing automatic tensioning of the material, which is beneficial to improving the rewinding quality of the material.

[0013] Optionally, the transmission assembly includes:

[0014] A mounting plate, wherein the mounting plate is coaxially fixedly connected to an end of the rewinding roller away from the motor, the mounting plate has the same diameter as the rotating plate, and an end of the mounting plate away from the motor and an end of the rotating plate away from the first tensioning rod are located on the same plane;

[0015] a first mounting rod, the first mounting rod being connected to an end of the mounting plate away from the rewinding roller;

[0016] a second mounting rod, the second mounting rod being connected to an end of the rotating disk away from the first tensioning rod, the distance from the first mounting rod to the axis of the mounting disk being the same as the distance from the second mounting rod to the axis of the rotating disk;

[0017] A connecting rod, one end of which is sleeved and rotatably mounted on a first mounting rod, and the other end of which is sleeved and rotatably mounted on a second mounting rod.

[0018] By adopting the above technical solution, the motor drives the rewinding roller, the rewinding roller drives the mounting plate, the mounting plate drives the connecting rod to move, the connecting rod drives the rotating plate, and the rotating plate drives the first tensioning rod and the second tensioning rod, so that the material is automatically tensioned, which is beneficial to improving the rewinding quality of the material.

[0019] Optionally, the control component includes:

[0020] A first telescopic rod, wherein a fixed end of the first telescopic rod is fixedly mounted on the mounting plate, a movable end of the first telescopic rod is fixedly connected to the first mounting rod, and the first mounting rod can be coaxial with the mounting plate when the movable end of the first telescopic rod is fully extended;

[0021] a second telescopic rod, wherein the fixed end of the second telescopic rod is fixedly mounted on the rotating disk, the movable end of the second telescopic rod is fixedly connected to the second mounting rod, and the second mounting rod can be coaxial with the rotating disk after the movable end of the second telescopic rod is fully extended, the distance between the first telescopic rod and the second telescopic rod is equal to the distance between the axis of the rotating disk and the mounting disk, and the moving direction of the movable end of the first telescopic rod is the same as the moving direction of the movable end of the second telescopic rod;

[0022] A first airbag, the first airbag is circumferentially arranged on the first tensioning rod, and the first airbag is connected to the rod cavity of the first telescopic rod;

[0023] A second airbag, the second airbag is circumferentially arranged on the second tensioning rod, and the second airbag is connected to the rod cavity of the second telescopic rod;

[0024] A spring is fixedly installed in the rodless cavity of the first telescopic rod and the second telescopic rod, and the telescopic direction of the spring is along the telescopic direction of the movable end of the first telescopic rod.

[0025] By adopting the above technical solution, the material squeezes the first airbag and the second airbag, and the gas in the first airbag and the second airbag enters the rodless cavity of the first telescopic rod and the second telescopic rod respectively, so that the movable end of the first telescopic rod moves in the direction close to the axis of the rotating disk, and the movable end of the second telescopic rod moves in the direction close to the rotating axis of the mounting disk. When the first mounting rod is coaxial with the rotating disk and the second mounting rod is coaxial with the mounting disk, the mounting disk rotates so that the connecting rod rotates with the first mounting rod as the axis, so that the transmission of the motor and the mounting disk is disconnected, and the material is automatically tensioned, which is beneficial to improving the rewinding quality of the material.

[0026] Optionally, the first tensioning rod and the second tensioning rod are both connected to an adjustment mechanism, and the adjustment mechanism comprises: a slide groove, the slide groove is provided on the rotating disk, the slide groove passes through the axis of the rotating disk, and the first tensioning rod and the second tensioning rod are slidably installed in the slide groove;

[0027] A bidirectional stud is threadedly connected to the first tensioning rod and the second tensioning rod.

[0028] By adopting the above technical solution, the bidirectional stud is rotated to adjust the distance between the first tensioning rod and the second tensioning rod, and the tensioning force of the tensioning mechanism can be further adjusted, which is beneficial to improving the rewinding quality of the material.

[0029] Optionally, both the first airbag and the second airbag are provided with sleeves.

[0030] By adopting the above technical solution, the friction between the first airbag, the second airbag and the material can be avoided, thereby avoiding damage to the material, which is beneficial to improving the rewinding quality of the material.

[0031] Optionally, a handle is fixedly mounted on one end of the bidirectional stud.

[0032] By adopting the above technical solution, a good force application point can be provided when the operator rotates the stud, which is conducive to improving work efficiency.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. While the motor drives the rewinding roller to rewind the material, it can also drive the rotating disk to rotate through the transmission component. The first tensioning rod and the second tensioning rod connected to the rotating disk rotate accordingly to tension the material. When the material is tensioned, the control component starts to disconnect the transmission between the transmission component and the rotating disk, thus realizing automatic tensioning of the material, which is beneficial to improving the rewinding quality of the material;

[0035] 2. The material squeezes the first and second airbags, and the gases in the first and second airbags enter the rodless cavities of the first telescopic rod and the second telescopic rod respectively, causing the movable end of the first telescopic rod to move toward the axis of the mounting disk, and the movable end of the second telescopic rod to move toward the axis of the rotating disk. When the first mounting rod is coaxial with the mounting disk, and the second mounting rod is coaxial with the rotating disk, the mounting disk rotates to cause the connecting rod to rotate with the first mounting rod as the axis, so that the transmission between the motor and the mounting disk is disconnected, thus realizing automatic tensioning of the material, which is beneficial to improving the rewinding quality of the material;

[0036] 3. The sleeve can avoid friction between the first airbag, the second airbag and the material, thereby avoiding damage to the material, which is beneficial to improving the rewinding quality of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0038] Figure 2 It is a structural display diagram of the tensioning mechanism of the embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Bracket; 11. Rewinding roller; 12. Feeding roller; 13. Motor;

[0041] 2. tensioning mechanism; 21. rotating disk; 22. first tensioning rod; 23. second tensioning rod; 24. transmission assembly; 241. mounting disk; 242. first mounting rod; 243. second mounting rod; 244. connecting rod; 251. first telescopic rod; 252. second telescopic rod; 253. first airbag; 254. second airbag; 255. spring;

[0042] 3. Adjustment mechanism; 31. Slideway; 32. Bidirectional stud;

[0043] 4. Casing;

[0044] 5. Handle. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-2 This application is described in further detail.

[0046] The embodiment of the present application discloses a tensioning structure of a rewinding machine.

[0047] Reference Figure 1 A rewinding machine tensioning structure includes a bracket 1, on which a rewinding roller 11 and a reeling roller 12 are rotatably mounted, a motor 13 is fixedly mounted on the bracket 1, and an output shaft of the motor 13 is coaxially and fixedly connected to the rewinding roller 11; a tensioning mechanism 2 is arranged on the bracket 1.

[0048] Reference Figure 2 The tensioning mechanism 2 includes a rotating disk 21, which is embedded and rotatably mounted on the bracket 1. A first tensioning rod 22 and a second tensioning rod 23 are eccentrically connected to one end of the rotating disk 21 close to the bracket 1. The first tensioning rod 22 and the second tensioning rod 23 are symmetrically arranged about the axis of the rotating disk 21; the rotating disk 21 is connected to a transmission assembly 24, which is used to drive the rotating disk 21 to rotate; the transmission assembly 24 is connected to a control assembly, which is used to control the start and stop of the transmission assembly 24.

[0049] When in use, the material to be rewound is placed on the reeling roller 12, and then one end of the material is passed through the gap between the first tensioning rod 22 and the second tensioning rod 23, and fixed on the side wall of the rewinding roller 11. The motor 13 is started, and the motor 13 drives the rewinding roller 11 to rotate to rewind the material; at the same time, the motor 13 drives the transmission component 24 to operate, and the operation of the transmission component 24 drives the rotating disk 21 to rotate, and the first tensioning rod 22 and the second tensioning rod 23 can tension the material. When the material is fully tensioned, the control component is started, so that the transmission between the transmission component 24 and the rotating disk 21 is disconnected. At this time, the material is rewound by the rewinding roller 11 in a tensioned state.

[0050] Reference Figure 2 The transmission assembly 24 includes a mounting disk 241, which is coaxially fixedly connected to the end of the rewinding roller 11 away from the motor 13. The mounting disk 241 has the same diameter as the rotating disk 21, and the end of the mounting disk 241 away from the motor 13 and the end of the rotating disk 21 away from the first tensioning rod 22 are located on the same plane; a first mounting rod 242 is connected to the end of the mounting disk 241 away from the rewinding roller 11; a second mounting rod 243 is connected to the end of the rotating disk 21 away from the first tensioning rod 22, and the distance from the first mounting rod 242 to the axis of the mounting disk 241 is the same as the distance from the second mounting disk 241 to the axis of the rotating disk 21; a connecting rod 244 is sleeved and rotatably installed on the first mounting rod 242, and an end of the connecting rod 244 away from the first mounting rod 242 is sleeved and rotatably installed on the second mounting rod 243.

[0051] When the motor 13 drives the rewinding roller 11 to rotate, the rewinding roller 11 drives the mounting plate 241 to rotate, the mounting plate 241 drives the connecting rod 244 to move, the connecting rod 244 drives the rotating plate 21 to rotate, and the rotating plate 21 drives the first tensioning rod 22 and the second tensioning rod 23 to rotate, so that the material is tensioned.

[0052] Reference Figure 2 The control assembly includes a first telescopic rod 251, the fixed end of the first telescopic rod 251 is fixedly mounted on the mounting plate 241, the movable end of the first telescopic rod 251 is fixedly connected to the first mounting rod 242, and the first mounting rod 242 can be coaxial with the mounting plate 241 after the movable end of the first telescopic rod 251 is fully extended; a second telescopic rod 252 is fixedly mounted on the rotating plate 21, the movable end of the second telescopic rod 252 is fixedly connected to the second mounting rod 243, and the second mounting rod 243 can be coaxial with the rotating plate 21 after the movable end of the second telescopic rod 252 is fully extended, and the distance between the first telescopic rod 251 and the second telescopic rod 252 The distance between the axis of the rotating disk 21 and the mounting disk 241 is equal, and the moving direction of the movable end of the first telescopic rod 251 is the same as the moving direction of the movable end of the second telescopic rod 252; a first airbag 253 is arranged around the circumference of the first tensioning rod 22, and the first airbag 253 is connected to the rodless cavity of the first telescopic rod 251; a second airbag 254 is arranged around the circumference of the second tensioning rod 23, and the second airbag 254 is connected to the rodless cavity of the second telescopic rod 252; springs 255 are fixedly installed in the rod cavities of the first telescopic rod 251 and the second telescopic rod 252, and the extension direction of the spring 255 is along the extension direction of the first telescopic rod 251.

[0053] When the material is rewound, the rotating disk 21 rotates so that the first tensioning rod 22 and the second tensioning rod 23 tension the material. At the same time, the material squeezes the first airbag 253 and the second airbag 254, and the gas in the first airbag 253 is squeezed into the rodless cavity of the first telescopic rod 251, so that the movable end of the first telescopic rod 251 moves toward the direction close to the axis of the mounting disk 241; the gas in the second airbag 254 is squeezed into the rodless cavity of the second telescopic rod 252, so that the movable end of the second telescopic rod 252 moves toward the direction close to the axis of the rotating disk 21. At the same time, the spring 255 is stretched to maintain the pressure inside the first airbag 253 and the second airbag 254. When the first mounting rod 242 moves to be coaxial with the mounting disk 241, and the second mounting rod 243 moves to be coaxial with the rotating disk 21, the mounting disk 241 rotates so that the connecting rod 244 rotates with the first mounting rod 242 as the axis, and the rotating disk 21 cannot be driven to rotate.

[0054] Reference Figure 2The first tensioning rod 22 and the second tensioning rod 23 are both connected to an adjusting mechanism 3, and the adjusting mechanism 3 includes a slide groove 31. The slide groove 31 is opened on the rotating disk 21, and the slide groove 31 passes through the axis of the rotating disk 21. The first tensioning rod 22 and the second tensioning rod 23 are slidably installed in the slide groove 31. The first tensioning rod 22 and the second tensioning rod 23 are both threadedly connected with a bidirectional stud 32.

[0055] When in use, the bidirectional stud 32 is rotated so that the first tensioning rod 22 and the second tensioning rod 23 can move closer to each other or farther away from each other, thereby further increasing the tensioning force of the tensioning mechanism 2 .

[0056] Reference Figure 2 The first airbag 253 and the second airbag 254 are both sleeved with a sleeve 4.

[0057] The sleeve 4 can prevent the friction between the first airbag 253 and the second airbag 254 and the material, thereby preventing the material from being damaged.

[0058] Reference Figure 2 A handle 5 is fixedly mounted on one end of the bidirectional stud 32 .

[0059] The handle 5 can provide a good force application point when the operator rotates the bidirectional stud 32, which is conducive to improving work efficiency.

[0060] The implementation principle of the tensioning structure of a rewinding machine in the embodiment of the present application is as follows: when in use, the material to be rewound is placed on the reeling roller 12, and then one end of the material is passed through the gap between the first tensioning rod 22 and the second tensioning rod 23, and fixed on the side wall of the rewinding roller 11. The motor 13 is started, and the motor 13 drives the rewinding roller 11 to rotate to rewind the material. When the motor 13 drives the rewinding roller 11 to rotate, the rewinding roller 11 drives the mounting plate 241 to rotate, the rotation of the mounting plate 241 drives the connecting rod 244 to move, the movement of the connecting rod 244 drives the rotating plate 21 to rotate, and the rotation of the rotating plate 21 drives the first tensioning rod 22 and the second tensioning rod 23 to rotate, so that the material is tensioned. At the same time, the material squeezes the first airbag 253 and the second airbag 254, and the gas in the first airbag 253 is squeezed into the rodless cavity of the first telescopic rod 251, so that the movable end of the first telescopic rod 251 moves toward the direction close to the axis of the mounting plate 241; the gas in the second airbag 254 is squeezed into the rodless cavity of the second telescopic rod 252, so that the movable end of the second telescopic rod 252 moves toward the direction close to the axis of the rotating plate 21. At the same time, the spring 255 is stretched to maintain the pressure inside the first airbag 253 and the second airbag 254. When the first mounting rod 242 moves to be coaxial with the mounting plate 241, and the second mounting rod 243 moves to be coaxial with the rotating plate 21, the mounting plate 241 rotates so that the connecting rod 244 rotates with the first mounting rod 242 as the axis, and the rotating plate 21 cannot be driven to rotate. At this time, the material is tensioned, and the rewinding roller 11 rewinds the material, realizing automatic tensioning of the material, which is conducive to improving the rewinding quality of the material.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rewinding machine tensioning structure, characterized in that: The invention comprises a support (1), on which a rewinding roller (11) and a reeling roller (12) are rotatably mounted, and on which a motor (13) is fixedly mounted, wherein the output end of the motor (13) is coaxially fixedly connected to the rewinding roller (11); a tensioning mechanism (2) is arranged on the support (1); and the tensioning mechanism (2) comprises: A rotating disk (21), the rotating disk (21) being embedded and rotatably mounted on the bracket (1); A first tensioning rod (22), wherein the first tensioning rod (22) is eccentrically connected to an end surface of the rotating disk (21); a second tensioning rod (23), the second tensioning rod (23) being eccentrically connected to an end surface of the rotating disk (21), the first tensioning rod (22) and the second tensioning rod (23) being symmetrically arranged about an axis of the rotating disk (21); a transmission assembly (24), the transmission assembly (24) being connected to the rotating disk (21), and the transmission assembly (24) being used to drive the rotating disk (21) to rotate; A control component is connected to the transmission component (24), and is used to control the start and stop of the transmission component (24).

2. The rewinding machine tensioning structure according to claim 1, characterized in that: The transmission assembly (24) comprises: a mounting plate (241), the mounting plate (241) being coaxially fixedly connected to an end of the rewinding roller (11) away from the motor (13), the mounting plate (241) having the same diameter as the rotating plate (21), and the end of the mounting plate (241) away from the motor (13) and the end of the rotating plate (21) away from the first tensioning rod (22) being located on the same plane; a first mounting rod (242), the first mounting rod (242) being connected to an end of the mounting plate (241) away from the rewinding roller (11); a second mounting rod (243), the second mounting rod (243) being connected to an end of the rotating disk (21) away from the first tensioning rod (22), the distance from the first mounting rod (242) to the axis of the mounting disk (241) being the same as the distance from the second mounting rod (243) to the axis of the rotating disk (21); A connecting rod (244), one end of which is sleeved and rotatably mounted on the first mounting rod (242), and the other end of which is sleeved and rotatably mounted on the second mounting rod (243).

3. The rewinding machine tensioning structure according to claim 2, characterized in that: The control component comprises: a first telescopic rod (251), wherein a fixed end of the first telescopic rod (251) is fixedly mounted on the mounting plate (241), a movable end of the first telescopic rod (251) is fixedly connected to the first mounting rod (242), and when the movable end of the first telescopic rod (251) is fully extended, the first mounting rod (242) can be coaxial with the mounting plate (241); a second telescopic rod (252), wherein a fixed end of the second telescopic rod (252) is fixedly mounted on the rotating disk (21), a movable end of the second telescopic rod (252) is fixedly connected to the second mounting rod (243), and when the movable end of the second telescopic rod (252) is fully extended, the second mounting rod (243) can be coaxial with the rotating disk (21), a distance between the first telescopic rod (251) and the second telescopic rod (252) is equal to a distance between the axes of the rotating disk (21) and the mounting disk (241), and a moving direction of the movable end of the first telescopic rod (251) is the same as a moving direction of the movable end of the second telescopic rod (252); a first airbag (253), the first airbag (253) being circumferentially arranged on the first tensioning rod (22), the first airbag (253) being in communication with a rod cavity of the first telescopic rod (251); a second airbag (254), the second airbag (254) being circumferentially arranged on the second tensioning rod (23), the second airbag (254) being in communication with the rod cavity of the second telescopic rod (252); A spring (255), wherein the spring (255) is fixedly mounted in the rodless cavity of the first telescopic rod (251) and the second telescopic rod (252), and the telescopic direction of the spring (255) is along the telescopic direction of the movable end of the first telescopic rod (251).

4. The rewinding machine tensioning structure according to claim 1, characterized in that: The first tensioning rod (22) and the second tensioning rod (23) are both connected to an adjustment mechanism (3), and the adjustment mechanism (3) comprises: A slide groove (31), wherein the slide groove (31) is provided on the rotating disk (21), the slide groove (31) passes through the axis of the rotating disk (21), and the first tensioning rod (22) and the second tensioning rod (23) are slidably installed in the slide groove (31); A bidirectional stud (32), wherein the bidirectional stud (32) is threadedly connected to the first tensioning rod (22) and the second tensioning rod (23).

5. The rewinding machine tensioning structure according to claim 3, characterized in that: The first airbag (253) and the second airbag (254) are both sleeved with a sleeve (4).

6. The rewinding machine tensioning structure according to claim 4, characterized in that: A handle (5) is fixedly mounted on one end of the bidirectional stud (32).

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