Cloth unwinding brake device and cloth processing line

Abstract

A cloth unwinding brake device and a cloth processing line; the cloth unwinding brake device is used for connecting a cloth feeding roller with cloth wound thereon, and comprises a moving table and a brake mechanism; the brake mechanism is arranged on the moving table, the moving table drives the brake mechanism to move; a brake and a support seat are arranged on the moving table; one end of an extension shaft cylinder is connected to the other end of a driving shaft, the other end of the extension shaft cylinder is detachably connected to one end of the cloth feeding roller, so that the driving shaft, the extension shaft cylinder and the cloth feeding roller are connected in a synchronous rotating mode; the extension shaft cylinder is rotatably connected to the support seat; and an output end of the brake is connected to one end of the driving shaft, so as to brake the driving shaft. According to the scheme, the tension of the cloth in a certain process of the cloth processing line can be temporarily adjusted to be stable, and the problem that the tension of the cloth cannot be adjusted in time when the tension of the cloth in a certain process of the cloth processing line is unstable is solved.

Description

Technical Field

[0001] This utility model relates to the textile field, and in particular to a fabric unwinding braking device and a fabric processing line. Background Technology

[0002] Traditional fabric production lines break down complex fabric production processes into standardized steps, enabling automated processing of the fabric in corresponding equipment at each step. These lines typically use multiple guide rollers to convey the fabric, which sequentially passes through multiple processing devices before finally being rolled up to complete the process. However, because the fabric is continuously conveyed between processing devices, the traction force experienced by the fabric as it passes over the feed rollers varies, potentially leading to excessive or insufficient tension. For example, in fabric feeding devices, the fabric is typically unwound by rotating the feed rollers. However, when the feed rollers are pulled too fast, they unwound even more fabric. Conversely, when the fabric conveying speed decreases, the feed rollers continue to unwound more fabric due to inertia, resulting in reduced tension. This causes the unwound fabric to loosen and fall to the ground, contaminating the fabric and reducing its unwinding stability. When a processing device experiences unstable tension, existing technology cannot promptly and specifically adjust the tension of that device. If left untreated for an extended period, this can lead to widespread quality defects on the fabric surface, performance degradation, and potential damage to the feed rollers. Utility Model Content

[0003] The purpose of this utility model is to provide a fabric unwinding device, whose moving platform can drive the braking mechanism to move, so that the braking mechanism can be combined and connected with the feeding roller used for unwinding or conveying fabric in the fabric processing line as needed, and the feeding roller can be braked by the brake after combination, so that the tension of the fabric in a certain process in the fabric processing line can be temporarily adjusted to a stable state.

[0004] This utility model also proposes a fabric processing line, which is equipped with the above-mentioned fabric unwinding device.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A fabric unwinding braking device for connecting a feed roller wound with fabric, comprising: a moving table and a braking mechanism;

[0007] The braking mechanism is mounted on the movable platform, and the movable platform drives the braking mechanism to move.

[0008] The braking mechanism includes: a support base, a drive shaft, an extension cylinder, and a brake;

[0009] The brake and support are disposed on the movable platform; one end of the extension cylinder is connected to the other end of the drive shaft, and the other end of the extension cylinder is detachably connected to one end of the feed roller, so that the drive shaft, the extension cylinder and the feed roller are connected to rotate synchronously; the extension cylinder is rotatably connected to the support; the output end of the brake is connected to one end of the drive shaft for braking the drive shaft.

[0010] Alternatively, the brake can be a magnetic powder brake.

[0011] Optimally, it may also include: a tension controller;

[0012] The tension controller is fixed to the moving platform; the tension controller is electrically connected to the brake and is used to adjust the excitation current of the brake.

[0013] Alternatively, the mobile platform may be equipped with a storage compartment for storing the power cords of both the brake and the tension controller.

[0014] Optimally, it may also include: a height adjustment mechanism;

[0015] The height adjustment mechanism is installed on the mobile platform; the lifting end of the height adjustment mechanism is connected to the support base and is used to adjust the height of the support base.

[0016] One end of the extension cylinder is angularly adjustable and connected to the drive shaft, and the other end of the extension cylinder is angularly adjustable and connected to the feed roller.

[0017] Optimally, the extension cylinder includes: a fixed cylinder, a conversion buckle, and a movable cylinder;

[0018] The fixed cylinder is rotatably mounted on the support base; fixed slots are provided at both ends of the fixed cylinder; a movable slot is provided at one end of the movable cylinder, and a mating port is provided at the other end of the movable cylinder; a conversion slot is provided at both ends of the conversion buckle, and a buckle seat is provided at each conversion slot, and the first axis of the buckle seat is rotatably mounted on the conversion slot.

[0019] The buckle seat at one end of the conversion buckle is rotatably connected to the fixed bayonet, and the second axis of the buckle seat rotates at the fixed bayonet, so that the conversion buckle is rotatably connected to both ends of the fixed cylinder respectively;

[0020] The buckle seat at the other end of the conversion buckle is rotatably connected to the movable latch, and the second shaft of the buckle seat rotates on the movable latch, so that one end of the movable cylinder is rotatably connected to the conversion buckle; the mating port at one end of one of the movable cylinders is connected to the drive shaft, and the mating port at one end of the other movable cylinder is connected to the feed roller.

[0021] Optimally, the mating opening is provided with a snap-fit ​​male part, and the outer surfaces of both the drive shaft and the feed roller are provided with snap-fit ​​female parts; the snap-fit ​​male part is detachably fitted to the snap-fit ​​female part, so that the drive shaft is synchronously rotatably connected to the movable cylinder, and the feed roller is synchronously rotatably connected to the movable cylinder;

[0022] One of the male and female snap-fit ​​parts is a snap-fit ​​groove, and the other is a snap-fit ​​block. The snap-fit ​​block moves horizontally relative to the snap-fit ​​groove, so that the male snap-fit ​​part can be detachably fitted to the female snap-fit ​​part.

[0023] Optimally, the height adjustment mechanism includes: an adjustment frame, an adjustment nut seat, a guide rail, and an adjustment screw;

[0024] The adjusting frame is mounted on the movable platform, the adjusting nut seat is mounted on the adjusting frame, and the guide rail is vertically mounted on the adjusting frame; the support seat is fixed to the adjusting screw, the support seat is movably connected to the guide rail, and the adjusting screw is threadedly engaged with the adjusting nut seat; when the adjusting screw is rotated, the adjusting screw moves relative to the adjusting nut seat, and the adjusting screw drives the support seat to rise and fall along the guide rail.

[0025] A fabric processing line includes: a fabric feeding device, a fabric processing device, and the aforementioned fabric unwinding braking device;

[0026] Multiple fabric processing devices are arranged in sequence, and the fabric feeding device is used to feed fabric to the fabric processing devices;

[0027] The fabric feeding device includes: a take-up frame and the fabric feeding roller;

[0028] The feed roller is rotatably mounted on the take-up frame; the feed roller is arranged laterally, and one end of the feed roller extends laterally beyond one side of the take-up frame;

[0029] The fabric feeding roller of the fabric feeding device is wound up with fabric, and part of the fabric processing device pulls the fabric to convey it, so that the fabric feeding roller of the fabric feeding device rotates and unwinds the fabric; the moving table moves at the winding frame, and the extension shaft is detachably connected to the fabric feeding roller of the fabric feeding device.

[0030] Alternatively, some of the fabric processing apparatus may be provided with a feed roller for conveying fabric; the movable table may be moved to the fabric processing apparatus, and the extension cylinder may be detachably connected to the feed roller of the fabric processing apparatus.

[0031] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0032] This solution provides a fabric unwinding device, whose movable platform can drive the braking mechanism to move, so that the braking mechanism can be combined and connected with the feed roller used for unwinding or transferring fabric in the fabric processing line as needed, and the feed roller can be braked by the brake after combination. This can temporarily adjust the tension of the fabric in a certain process of the fabric processing line to a stable state, solving the problem that the tension of the fabric cannot be adjusted in time when it is unstable in a certain process of the fabric processing line. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of the fabric unwinding braking device;

[0034] Figure 2 This is a schematic diagram of one embodiment of the fabric unwinding braking device connected to the feed roller;

[0035] Figure 3 This is a structural schematic diagram of one embodiment of a fabric processing line;

[0036] Figure 4 This is a structural schematic diagram of one embodiment of the extended shaft cylinder;

[0037] Figure 5 This is a schematic diagram of the structure of one embodiment of the fabric feeding device;

[0038] Figure 6 This is a schematic diagram of one embodiment of the height adjustment mechanism.

[0039] in:

[0040] 1. Moving platform; 2. Fabric loading device; 3. Braking mechanism; 5. Height adjustment mechanism; 6. Tension controller; 7. Fabric processing device; 8. Fabric;

[0041] Storage compartment 111; winding rack 21; feed roller 22; brake 31; support base 32; drive shaft 33; and extension shaft cylinder 34;

[0042] Fixed cylinder 341, conversion buckle 342, movable cylinder 343; fixed bayonet 3411, movable bayonet 3431, mating port 3432; conversion bayonet 3421; buckle seat 3422;

[0043] Card connection male part 41, card connection female part 42;

[0044] Adjustment bracket 51, adjusting nut seat 52, guide rail 53, adjusting screw 54. Detailed Implementation

[0045] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0046] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0047] like Figure 1-6 A fabric unwinding braking device for connecting a fabric feed roller 22 wound with fabric, comprising: a moving table 1 and a braking mechanism 3;

[0048] The braking mechanism 3 is disposed on the movable platform 1, and the movable platform 1 drives the braking mechanism 3 to move;

[0049] The braking mechanism 3 includes: a support base 32, a drive shaft 33, an extension shaft cylinder 34, and a brake 31;

[0050] The brake 31 and the support base 32 are disposed on the movable table 1; one end of the extension shaft 34 is connected to the other end of the drive shaft 33, and the other end of the extension shaft 34 is detachably connected to one end of the feed roller 22, so that the drive shaft 33, the extension shaft 34 and the feed roller 22 are synchronously rotated and connected; the extension shaft 34 is rotatably connected to the support base 32; the output end of the brake 31 is connected to one end of the drive shaft 33 for braking the drive shaft 33.

[0051] This solution provides a fabric unwinding device, whose movable platform 1 can drive the braking mechanism 3 to move, so that the braking mechanism 3 can be combined and connected with the feeding roller 22 used for unwinding or transferring fabric in the fabric processing line as needed, and after combination, the feeding roller 22 is braked by the brake 31, which can temporarily adjust the tension of the fabric in a certain process of the fabric processing line to a stable state, thus solving the problem that the fabric tension cannot be adjusted in time when it is unstable in a certain process of the fabric processing line.

[0052] Specifically, brake 31 is mounted on movable platform 1; movable platform 1 is movable, for example, by using casters, or by manual pushing, pulling, or handling. Feed roller 22 is laterally positioned in a device of the fabric processing line, such as the unwinding frame 21 of the fabric feeding device 2, or the fabric processing device 7 such as the dyeing device; feed roller 22 can rotate around its own central axis, with some feed rollers 22 unwinding fabric; some feed rollers 22 are arranged individually, with fabric passing around them, and the feed rollers 22 guide the fabric transport; some feed rollers 22 are arranged in pairs, abutting each other, for squeezing the fabric during transport. One end of the feed roller 22 extends horizontally outward from its location in the fabric feeding device 2 or fabric processing device 7. The extension cylinder 34 is connected to the drive shaft 33 at one end. The drive shaft 33 and the extension cylinder 34 are essentially on the same straight line. The support seat 32 on the moving table 1 can support the extension cylinder 34, ensuring that the drive shaft 33 and the extension cylinder 34 are subjected to uniform force. The output end of the brake 31 is connected to the drive shaft 33 and is used to brake the drive shaft 33. Since the drive shaft 33 and the extension cylinder 34 are detachably connected, braking the drive shaft 33 by the brake 31 will brake the extension cylinder 34. When the fabric processing line is in progress... When the tension of a fabric processing device 7 or a fabric feeding device 2 becomes unstable, the moving table 1 can be moved into the fabric processing device 7. One end of the feed roller 22 extends laterally to one side of the fabric processing device 7. The moving table 1 is then moved to pre-align the extension cylinder 34 with the extended end of the feed roller 22. Finally, the moving table 1 is moved towards the fabric processing device 7 to move the extension cylinder 34 to be integrated with the feed roller 22. The connection method can be a known connection method such as snap-fit, screw fixing, or threaded engagement. At this time, if the fabric tension is too low, the brake 31 is activated. The output end of the brake 31 brakes the drive shaft 33, which in turn brakes the extension cylinder 34. The extension cylinder 34 brakes the feed roller 22, causing the fabric conveying speed around the feed roller 22 to decrease. Under the traction of the fabric processing device 7 behind, the fabric gradually tightens, causing the tension to gradually increase. After the fabric tension in the fabric processing device 7 rises to a suitable level, the brake 31 is released, and the rotation of the drive shaft 33 is unrestricted. Furthermore, when the fabric is conveyed from the front fabric processing device 7 to the rear fabric processing device 7, if the fabric tension in the front fabric processing device 7 is too high, a fabric unwinding brake device can be connected to the feed roller 22 of the rear fabric processing device 7. This unwinding brake device brakes the rear feed roller 22, reducing its rotational speed and decreasing the overall fabric conveying speed, thereby reducing the fabric tension in the front fabric processing device 7. In this way, this solution can temporarily adjust the fabric tension to a stable level in a certain process of the fabric processing line, solving the problem of not being able to adjust the tension in a timely manner when unstable fabric tension occurs in a certain process of the fabric processing line.

[0053] Alternatively, the brake 31 can be a magnetic powder brake.

[0054] Magnetic powder brakes have advantages such as fast response, simple structure, no pollution, no noise, no impact vibration, and energy saving. The active rotor of the magnetic powder brake is connected to the drive shaft 33. As is common knowledge, when the coil of the magnetic powder brake is not energized, the active rotor rotates. Due to the centrifugal force, the magnetic powder is thrown onto the inner wall of the active rotor. There is no contact between the magnetic powder and the driven rotor, and the active rotor spins idly, that is, the drive shaft 33 spins idly. When the magnetic powder brake is powered on, it generates an electromagnetic field. The working medium, magnetic powder, forms a magnetic powder chain under the action of magnetic lines of force, connecting the inner rotor and the outer rotor, thereby achieving the purpose of transmitting braking torque to brake the drive shaft 33.

[0055] Optimally, it also includes: a tension controller 6;

[0056] The tension controller 6 is fixed to the moving platform 1; the tension controller 6 is electrically connected to the brake 31 and is used to adjust the excitation current of the brake 31.

[0057] The tension controller 6 moves with the moving platform 1 and is electrically connected to the brake 31. It can manually or automatically adjust the excitation current of the brake 31 according to actual conditions, thereby controlling the braking force of the brake 31. For the manually adjusted embodiment, no additional sensor is required, offering advantages of simplicity and low cost. For the automatically adjusted brake 31 embodiment, a known tension sensor can be installed at the position of the feed roller 22 as needed. The tension sensor is electrically connected to the tension controller 6. The tension controller 6 receives the electrical signal from the tension sensor and adjusts the excitation current of the brake 31 according to the received tension level, resulting in more precise tension control.

[0058] Alternatively, the mobile platform 1 may be provided with a storage compartment 111 for storing the power cords of both the brake 31 and the tension controller 6.

[0059] The storage compartment 111 is used to store items, primarily the power cords of the brake 31 and tension controller 6. Since the moving platform 1 can move to any position on the fabric processing line, the power cords of its brake 31 and tension controller 6 need to be relatively long to facilitate power connection at any location. However, placing the power cords on the ground during the movement of the moving platform 1 would affect the moving efficiency and easily damage the power cords. Therefore, this design provides a storage compartment 111 for the moving platform 1 to store the power cords during transfer, facilitating their transport.

[0060] Optimally, it may also include: a height adjustment mechanism 5;

[0061] The height adjustment mechanism 5 is installed on the mobile platform 1; the lifting end of the height adjustment mechanism 5 is connected to the support base 32 and is used to adjust the height of the support base 32.

[0062] One end of the extension cylinder 34 is angularly adjustable and connected to the drive shaft 33, and the other end of the extension cylinder 34 is angularly adjustable and connected to the feed roller 22.

[0063] The extension cylinder 34 of this design has multi-angle adjustment, and the movable cylinders 343 at both ends can be set at different axes. To address this, this embodiment provides a height adjustment mechanism 5 on the moving platform 1. The lifting end of the height adjustment mechanism 5 is connected to the support base 32 and is used to adjust the height position of the support base 32, allowing the fixed cylinder 341 to be at different heights. Since the feed rollers 22 at different positions may be set at different heights, after the support base 32 is height adjusted, the height position of the fixed cylinder 341 connected to it changes, corresponding to a change in the position of the movable cylinder 343 that cooperates with the feed roller 22. This allows the extension cylinder 34 to connect to multiple feed rollers 22 of different heights. Simultaneously, the two ends of the extension cylinder 34 are rotatable and adjustable. When connecting the drive shaft 33 or the feed roller 22, the ends can be adjusted at a moderate angle, allowing for lateral and vertical position adjustments during docking or height adjustment. This adaptively selects the optimal connection angle, reducing the difficulty of connecting the drive shaft 33 or the feed roller 22 to the extension cylinder 34, thereby shortening the assembly time.

[0064] The height adjustment mechanism 5 is a known mechanism with lifting and lowering functions, such as a cylinder, hydraulic cylinder, combination of motor and lead screw, or robotic arm, as long as it can adjust the height of the support base 32.

[0065] Optimally, the extension cylinder 34 includes: a fixed cylinder 341, a conversion buckle 342, and a movable cylinder 343;

[0066] The fixed cylinder 341 is rotatably mounted on the support base 32; both ends of the fixed cylinder 341 are respectively provided with fixed slots 3411; one end of the movable cylinder 343 is provided with a movable slot 3431, and the other end of the movable cylinder 343 is provided with a mating port 3432; both ends of the conversion buckle 342 are respectively provided with conversion slots 3421, and buckle seats 3422 are respectively provided at the conversion slots 3421, and the first shaft 344 of the buckle seat 3422 is rotatably mounted on the conversion slots 3421;

[0067] The buckle seat 3422 at one end of the conversion buckle 342 is rotatably connected to the fixed slot 3411, and the second shaft 345 of the buckle seat 3422 rotates on the fixed slot 3411, so that the conversion buckle 342 is rotatably connected to both ends of the fixed cylinder 341 respectively.

[0068] The buckle seat 3422 at the other end of the conversion buckle 342 is rotatably connected to the movable bayonet 3431. The second shaft 345 of the buckle seat 3422 rotates on the movable bayonet 3431, so that one end of the movable cylinder 343 is rotatably connected to the conversion buckle 342. The mating port 3432 at one end of one of the movable cylinders 343 is connected to the drive shaft 33, and the mating port 3432 at one end of the other movable cylinder 343 is connected to the feed roller 22.

[0069] The adapter buckles 342 are respectively installed at both ends of the fixed cylinder 341; each end of the adapter buckle 342 is provided with an adapter slot 3421, one end of which is used to rotatably connect with the fixed cylinder 341, and the other end of which is used to rotatably connect with the movable cylinder 343; specifically, the adapter slot 3421 of the adapter buckle 342 is provided with a buckle seat 3422, and the buckle seats 3422 at both ends can rotate around their first axis 344 in the adapter slot 3421; and the second axis 345 of the buckle seat 3422 at one end rotates in the fixed slot 3411, while the buckle seat 3422 at the other end... The second shaft 345 rotates around the movable latch 3431; thus, the conversion buckle 342 itself can rotate and adjust around the first shaft 344, and the two ends of the fixed cylinder 341 and one end of the conversion buckle 342 can rotate around the second shaft 345, and one end of the movable cylinder 343 and the other end of the conversion buckle 342 can rotate around the second shaft 345 respectively; the other end of the movable cylinder 343 is provided with a mating port 3432, and the movable cylinder 343 at one end of the fixed cylinder 341 is connected to the drive shaft 33 through the mating port 3432, and the movable cylinder 343 at the other end of the fixed cylinder 341 is connected to the feed roller 22 through the mating port 3432. Therefore, the extension shaft cylinder 34 can achieve multi-angle adjustment along its length, and can adaptively perform multi-directional angle adjustment. The drive shaft 33 and the feed roller 22 can be connected in a non-coaxial orientation, thereby reducing the assembly difficulty of the extension shaft cylinder 34 with the feed roller 22 and the drive shaft 33, etc.

[0070] Optimally, the mating port 3432 is provided with a snap-fit ​​male part 41, and the outer surfaces of both the drive shaft 33 and the feed roller 22 are provided with snap-fit ​​female parts 42; the snap-fit ​​male part 41 is detachably fitted to the snap-fit ​​female part 42, so that the drive shaft 33 is synchronously rotatably connected to the movable cylinder 343, and the feed roller 22 is synchronously rotatably connected to the movable cylinder 343;

[0071] One of the male snap-fit ​​part 41 and the female snap-fit ​​part 42 is a snap-fit ​​groove 411, and the other is a snap-fit ​​block 421. The snap-fit ​​block 421 moves horizontally relative to the male snap-fit ​​part 411 to snap into the snap-fit ​​groove 411, so that the male snap-fit ​​part 41 can be detachably fitted into the female snap-fit ​​part 42.

[0072] When it is necessary to fit the movable cylinder 343 of the extension shaft cylinder 34 to one end of the drive shaft 33 or one end of the feed roller 22, this embodiment provides a snap-fit ​​male part 41 in the fitting port 3432, and snap-fit ​​female parts 42 are respectively provided on the outer surfaces of one end of the drive shaft 33 and one end of the feed roller 22. The snap-fit ​​male part 41 and the snap-fit ​​female part 42 have a limiting function, which can make the drive shaft 33, the extension shaft cylinder 34 and the feed roller 22 rotate synchronously and connect. The extension cylinder 34 of this design has the advantage of multi-angle adaptive adjustment. When it is necessary to connect the feed roller 22 to the extension cylinder 34, the moving table 1 and the unwinding frame 21 can be moved horizontally so that one end of the feed roller 22 moves horizontally with the mating port 3432 of the movable cylinder 343. This allows the locking block 421 to move horizontally relative to the locking groove 411, which limits the locking block 421. Similarly, when one end of the drive shaft 33 is connected to the mating port 3432 of the movable cylinder 343, only a simple horizontal movement is required. The extension cylinder 34 can adaptively adjust to connect its movable cylinder 343 to the drive shaft 33 or the feed roller 22, which facilitates installation and disassembly.

[0073] Optimally, the height adjustment mechanism 5 includes: an adjustment frame 51, an adjustment nut seat 52, a guide rail 53, and an adjustment screw 54;

[0074] The adjusting frame 51 is mounted on the movable platform 1, the adjusting nut seat 52 is mounted on the adjusting frame 51, and the guide rail 53 is vertically mounted on the adjusting frame 51; the support seat 32 is fixed to the adjusting screw 54, the support seat 32 is movably connected to the guide rail 53, and the adjusting screw 54 is threadedly engaged with the adjusting nut seat 52; when the adjusting screw 54 is rotated to adjust, the adjusting screw 54 moves relative to the adjusting nut seat 52, and the adjusting screw 54 drives the support seat 32 to rise and fall along the guide rail 53.

[0075] The adjusting frame 51 is fixed to the moving table 1, meaning the moving table 1 has a height adjusting mechanism 5. The height adjusting mechanism 5 can move with the moving table 1 to any position on the fabric processing line, meaning the drive mechanism 3 can adapt to different height positions of the feed roller 22. When it is necessary to adjust the height of the movable cylinder 343 of the extension shaft cylinder 34 to align with the feed roller 22, the adjusting screw 54 can be rotated. The adjusting screw 54 and the adjusting nut seat 52 are threaded together. The rotation of the adjusting screw 54 will allow it to be adjusted up and down, thereby driving the support seat 32 to move under the guidance of the guide rail 53. The fixed cylinder 341 is located on the support seat 32. The lifting and lowering of the support seat 32 allows the support seat 32 it supports to be moved up and down. Based on the adaptive angle adjustment of the extension shaft cylinder 34, the movable cylinders 343 at both ends of the extension shaft cylinder 34 can be adjusted to different height positions, thereby connecting to the feed roller 22 of the fabric feeding device 2 or the fabric processing device 7.

[0076] The drive mechanism 3 also includes: a bearing 56;

[0077] The support base 32 is provided with a support opening 321. The outer ring of the bearing 56 is rotatably fixed to the support opening 321, and the fixing cylinder 341 is installed on the inner ring of the bearing 56. The extension cylinder 34 has multi-angle adaptive adjustment, so the fixing cylinder 341 can be installed on the inner ring of the bearing 56. The bearing 56 can improve the rotational stability of the fixing cylinder 341 and reduce the wear of the fixing cylinder 341 on the support base 32.

[0078] The height adjustment mechanism 5 further includes a buffer spring 55; the upper end of the buffer spring 55 is connected to the support base 32, and the lower end of the buffer spring 55 is connected to the adjustment frame 51 or the moving platform 1. Since the support base 32 is connected to the upper end of the buffer spring 55, when the support base 32 is adjusted in height, the support base 32 can compress or expand the buffer spring 55 according to the height position. The buffer spring 55 can provide a buffering effect for the lifting and lowering of the support base 32, and also prevent the support base 32 from lifting and lowering to the point that its extension shaft 34 exceeds its angle adjustment range, thereby providing protection for the extension shaft 34; at the same time, the buffer spring 55 is located below the support base 32, which can provide shock absorption for the support base 32.

[0079] A fabric processing line includes: a fabric feeding device 2, a fabric processing device 7, and the aforementioned fabric unwinding braking device;

[0080] Multiple fabric processing devices 7 are arranged in sequence, and the fabric feeding device 2 is used to feed fabric to the fabric processing devices 7;

[0081] The fabric feeding device 2 includes: a take-up frame 21 and the fabric feeding roller 22;

[0082] The feed roller 22 is rotatably mounted on the take-up frame 21; the feed roller 22 is arranged laterally, and one end of the feed roller 22 extends laterally beyond one side of the take-up frame 21.

[0083] The fabric feeding roller 22 of the fabric feeding device 2 is wound up with fabric, and part of the fabric processing device 7 pulls the fabric to convey it, so that the fabric feeding roller 22 of the fabric feeding device 2 rotates and unwinds the fabric; the moving table 1 moves to the winding frame 21, and the extension shaft 34 is detachably connected to the fabric feeding roller 22 of the fabric feeding device 2.

[0084] The fabric feeding device 2 is used to output fabric to the fabric processing device 7. Specifically, some fabric processing devices 7 are equipped with fabric rollers for pulling the fabric. The fabric rollers are driven to rotate directly or indirectly by a motor, which drives the fabric to be conveyed to multiple fabric processing devices 7 in sequence. The moving table 1 can drive the braking mechanism 3 to move, and the extension cylinder 34 moves to be connected to the feeding roller 22. The feeding roller 22 is located at the front end of the fabric processing device 7. When the fabric is pulled, the feeding roller 22 of the fabric processing device 7 rotates, thereby automatically unwinding the fabric. During the unwinding of the fabric by the feeding roller 22, the braking mechanism 3 of the moving table 1 can brake the drive shaft 33, thereby braking the feeding roller 22 through the extension cylinder 34, so as to avoid the feeding roller 22 unwinding too fast and resulting in an overly loose feeding state.

[0085] Alternatively, part of the fabric processing device 7 may be provided with a feed roller 22 for conveying fabric; the moving table 1 may be moved to the fabric processing device 7, and the extension cylinder 34 may be detachably connected to the feed roller 22 of the fabric processing device 7.

[0086] Some of the fabric feeding rollers 22 of the fabric processing device 7 can rotate under the drive of a motor, thereby driving the fabric conveying of the fabric feeding rollers 22; some of the fabric feeding rollers 22 are used to guide the direction of the fabric and can make the fabric taut.

[0087] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fabric unwinding braking device for connecting a feed roller on which fabric is wound, characterized in that, include: Moving platform and braking mechanism; The braking mechanism is mounted on the movable platform, and the movable platform drives the braking mechanism to move. The braking mechanism includes: a support base, a drive shaft, an extension cylinder, and a brake; The brake and support are disposed on the movable platform; one end of the extension cylinder is connected to the other end of the drive shaft, and the other end of the extension cylinder is detachably connected to one end of the feed roller, so that the drive shaft, the extension cylinder and the feed roller are connected to rotate synchronously; the extension cylinder is rotatably connected to the support; the output end of the brake is connected to one end of the drive shaft for braking the drive shaft.

2. The fabric unwinding braking device according to claim 1, characterized in that, The brake is a magnetic powder brake.

3. The fabric unwinding braking device according to claim 2, characterized in that, Also includes: Tension controller; The tension controller is fixed to the moving platform; The tension controller is electrically connected to the brake and is used to adjust the excitation current of the brake.

4. The fabric unwinding braking device according to claim 3, characterized in that, The mobile platform is equipped with a storage compartment for storing the power cords of both the brake and the tension controller.

5. A fabric unwinding braking device according to any one of claims 1-4, characterized in that, Also includes: Height adjustment mechanism; The height adjustment mechanism is installed on the mobile platform; The lifting end of the height adjustment mechanism is connected to the support base and is used to adjust the height of the support base; One end of the extension cylinder is angularly adjustable and connected to the drive shaft, and the other end of the extension cylinder is angularly adjustable and connected to the feed roller.

6. A fabric unwinding braking device according to claim 5, characterized in that, The extension sleeve includes: a fixed sleeve, a conversion buckle, and a movable sleeve; The fixed cylinder is rotatably mounted on the support base; fixed slots are provided at both ends of the fixed cylinder; a movable slot is provided at one end of the movable cylinder, and a mating port is provided at the other end of the movable cylinder; a conversion slot is provided at both ends of the conversion buckle, and a buckle seat is provided at each conversion slot, and the first axis of the buckle seat is rotatably mounted on the conversion slot. The buckle seat at one end of the conversion buckle is rotatably connected to the fixed bayonet, and the second axis of the buckle seat rotates at the fixed bayonet, so that the conversion buckle is rotatably connected to both ends of the fixed cylinder respectively; The buckle seat at the other end of the conversion buckle is rotatably connected to the movable latch, and the second shaft of the buckle seat rotates on the movable latch, so that one end of the movable cylinder is rotatably connected to the conversion buckle; the mating port at one end of one of the movable cylinders is connected to the drive shaft, and the mating port at one end of the other movable cylinder is connected to the feed roller.

7. A fabric unwinding braking device according to claim 6, characterized in that, The mating opening is provided with a male engaging part, and the outer surfaces of both the drive shaft and the feed roller are provided with female engaging parts; the male engaging part is detachably engaged with the female engaging part, so that the drive shaft is synchronously connected to the movable cylinder and the feed roller is synchronously connected to the movable cylinder. One of the male and female snap-fit ​​parts is a snap-fit ​​groove, and the other is a snap-fit ​​block. The snap-fit ​​block moves horizontally relative to the snap-fit ​​groove, so that the male snap-fit ​​part can be detachably fitted to the female snap-fit ​​part.

8. A fabric unwinding braking device according to claim 5, characterized in that, The height adjustment mechanism includes: an adjustment frame, an adjustment nut seat, a guide rail, and an adjustment screw; The adjusting frame is mounted on the movable platform, the adjusting nut seat is mounted on the adjusting frame, and the guide rail is vertically mounted on the adjusting frame; the support seat is fixed to the adjusting screw, the support seat is movably connected to the guide rail, and the adjusting screw is threadedly engaged with the adjusting nut seat; when the adjusting screw is rotated, the adjusting screw moves relative to the adjusting nut seat, and the adjusting screw drives the support seat to rise and fall along the guide rail.

9. A fabric processing line, characterized in that, include: The fabric feeding device, the fabric processing device, and the fabric unwinding braking device according to any one of claims 1-8; Multiple fabric processing devices are arranged in sequence, and the fabric feeding device is used to feed fabric to the fabric processing devices; The fabric feeding device includes: a take-up frame and the fabric feeding roller; The feed roller is rotatably mounted on the take-up frame; the feed roller is arranged laterally, and one end of the feed roller extends laterally beyond one side of the take-up frame; The fabric feeding roller of the fabric feeding device is wound up with fabric, and part of the fabric processing device pulls the fabric to convey it, so that the fabric feeding roller of the fabric feeding device rotates and unwinds the fabric; the moving table moves at the winding frame, and the extension shaft is detachably connected to the fabric feeding roller of the fabric feeding device.

10. A fabric processing line according to claim 9, characterized in that, The fabric processing device is provided with a feed roller for conveying fabric; the moving table moves at the fabric processing device, and the extension shaft is detachably connected to the feed roller of the fabric processing device.

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