A base cloth unwinding mechanism with fast mounting and fast dismounting brake

Abstract

The utility model discloses a base cloth unwinding mechanism of quick -mounting quick -disassembly with brake, including frame, the horizontal setting of frame has the gas inflation axle, and the gas inflation axle is used to place base cloth volume, and the both ends axle head of gas inflation axle is provided with the pressing plate, and the one end of pressing plate is through the pivot and is rotatively connected with the frame, and the other end is through locking piece and is locked on the frame, to realize the quick installation and disassembly of gas inflation axle, be provided with the magnetic powder brake on the frame, and the gear drive connection between magnetic powder brake and gas inflation axle, be provided with the compression transmission subassembly on the frame, and the compression transmission subassembly includes upper compression roller and lower compression roller, and the both ends of upper compression roller are connected with compression cylinder respectively, and compression cylinder drives upper compression roller and moves down and compresses base cloth on lower compression roller, be provided with the speed -reducing motor of drive lower compression roller rotation on the frame. Under the premise of cost is appropriate, increase a standard magnetic powder brake at base cloth volume axle end, and increase quick -mounting quick -disassembly pressing plate structure additionally at the both ends of axle, to reach the technological demand, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of base fabric unwinding machine, and relates to a base fabric unwinding mechanism with a brake for quick installation and unloading. Background Technology

[0002] Currently, base fabric unwinding machines are mainly divided into two types: active unwinding and passive unwinding. Although active unwinding machines can achieve a certain degree of active control, they have obvious shortcomings. The installation and disassembly of their base fabric rolls are inconvenient, and their load-bearing capacity is limited, making it difficult to meet the needs of large-scale production. At the same time, their costs are relatively high, increasing the production costs of enterprises.

[0003] Passive unwinding machines are relatively inexpensive and have certain advantages in cost-sensitive applications. However, they rely on external traction to pull the base fabric. When the external tension is unstable, the base fabric roll can become disordered due to inertia, requiring frequent manual intervention and adjustment. This not only reduces production efficiency but also, due to its operational instability, makes it difficult to integrate into automated production lines, limiting its application in modern, efficient production models. Utility Model Content

[0004] The purpose of this utility model is to provide a base fabric unwinding mechanism with a brake for quick installation and removal. Under the premise of reasonable cost, a standard magnetic powder brake is added to the end of the base fabric roll, and a quick installation and removal pressure plate structure is added to both ends of the shaft to meet the process requirements and improve production efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A quick-installation and quick-removal base fabric unwinding mechanism with a brake includes a frame, on which an air shaft is horizontally arranged for placing the base fabric roll; pressure plates are provided at both ends of the air shaft, one end of the pressure plate is rotatably connected to the frame via a pivot, and the other end is locked to the frame via a locking device to realize the quick installation and removal of the air shaft;

[0007] A magnetic powder brake is installed on the frame, and the magnetic powder brake is connected to the air shaft by gear transmission.

[0008] The frame is equipped with a pressing and transmission assembly, which includes an upper pressing roller and a lower pressing roller. The two ends of the upper pressing roller are respectively connected to a pressing cylinder. The pressing cylinder drives the upper pressing roller to move down and press the base fabric onto the lower pressing roller. The frame is equipped with a reduction motor that drives the lower pressing roller to rotate.

[0009] As a further improvement of one embodiment of the present invention, a small gear is provided at one end of the air expansion shaft, and a large gear is provided on the output shaft of the magnetic powder brake, wherein the large gear and the small gear mesh and drive each other.

[0010] As a further improvement of one embodiment of this utility model, the two ends of the lower pressure roller are fixed to the frame by the first bearing seat. A guide plate is provided on one side of the frame, and a sliding groove for placing the upper pressure roller is provided vertically on the guide plate. A second bearing seat is provided on the outer side of the guide plate and pivotally connected to the upper pressure roller. The upper end of the pressing cylinder is hinged to one end of the support member, and the other end of the support member is fixed to the frame. The piston end of the pressing cylinder is hinged to the second bearing seat.

[0011] As a further improvement of one embodiment of the present invention, the upper pressure roller is provided with a plurality of passive wheel couplings, and the lower pressure roller is provided with a plurality of active wheel couplings, wherein the passive wheel couplings and the active wheel couplings are vertically corresponding.

[0012] As a further improvement of one embodiment of the present utility model, the locking member is a star nut, the pressure plate is provided with a through hole for inserting one end of the star nut, and the frame is provided with a threaded hole for locking with the star nut.

[0013] As a further improvement of one embodiment of the present invention, the frame is provided with a pair of U-shaped groove support bearings, and the two ends of the air expansion shaft are respectively placed in the corresponding U-shaped groove support bearings; the pressure plate can rotate 180° around the pivot to open or close the upper opening of the U-shaped groove support bearing.

[0014] When it is necessary to install or remove the air shaft, the upper opening of the U-groove support bearing is opened by rotating the pressure plate 180°. At this time, the air shaft can be easily put into or taken out of the U-groove support bearing. After the air shaft is installed in place, the pressure plate is rotated 180° again to cover the upper opening of the U-groove support bearing, which limits the air shaft and prevents it from moving axially during unwinding. This improves the efficiency of air shaft installation and disassembly and the stability of operation.

[0015] The above technical solution has the following advantages: the braking torque is controlled by adjusting the current of the magnetic powder brake to achieve stable unwinding of the base fabric roll; the application of U-groove support bearings and pressure plates enables quick installation and removal of the air expansion shaft, resulting in lower cost. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. shown in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0019] Figure 2 This is a side view structural diagram of the present invention.

[0020] Figure 3 for Figure 1 An enlarged schematic diagram of region A in the middle.

[0021] In the picture:

[0022] 1. Rack;

[0023] 2. Magnetic powder brake;

[0024] 3. Large gear;

[0025] 4. Small gear;

[0026] 5. Air-expanding shaft;

[0027] 6. Pressure plate;

[0028] 7. Gear motor;

[0029] 8. Drive wheel assembly;

[0030] 9. Driven wheel assembly;

[0031] 10. U-groove support bearing;

[0032] 11. Base fabric roll;

[0033] 12. Locking components;

[0034] 13. Upper pressure roller;

[0035] 14. Lower pressure roller;

[0036] 15. Pressing cylinder;

[0037] 16. Guide plate;

[0038] 17. Support components;

[0039] 18. Second bearing housing;

[0040] 19. First bearing housing. Detailed Implementation

[0041] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0042] First embodiment, such as Figures 1-3 As shown, a quick-installation and quick-removal base fabric unwinding mechanism with a brake includes a frame 1. An air shaft 5 is horizontally arranged on the frame 1, and the air shaft 5 is used to hold the base fabric roll 11. Pressure plates 6 are provided at both ends of the air shaft 5. One end of the pressure plate 6 is rotatably connected to the frame 1 via a pivot, and the other end is locked to the frame 1 by a locking member 12, so as to realize the quick installation and removal of the air shaft 5.

[0043] Specifically, a pair of U-shaped groove support bearings 10 are provided on the frame 1, and the two ends of the air expansion shaft 5 are respectively placed in the corresponding U-shaped groove support bearings 10; the pressure plate 6 can rotate 180° around the pivot to open or close the upper opening of the U-shaped groove support bearing 10.

[0044] The locking component 12 is a star-shaped nut. The pressure plate 6 has a through hole for inserting one end of the star-shaped nut, and the frame 1 has a threaded hole for locking with the star-shaped nut. The threaded connection between the star-shaped nut and the threaded hole enables quick assembly and disassembly of the pressure plate 6.

[0045] When it is necessary to install or remove the air shaft 5, the upper opening of the U-groove support bearing 10 is opened by rotating the pressure plate 6 180°. At this time, the air shaft 5 can be easily put into or taken out of the U-groove support bearing 10. After the air shaft 5 is installed in place, the pressure plate 6 is rotated 180° again to cover the upper opening of the U-groove support bearing 10, which limits the air shaft 5 and prevents it from moving axially during unwinding, thereby improving the efficiency of air shaft 5 installation and removal and the stability of operation.

[0046] In this design, a magnetic powder brake 2 is installed on the frame 1, which is a key component ensuring stable unwinding of the base fabric roll 11. The magnetic powder brake 2 is connected to the air shaft 5 by gear transmission. This connection method is simple in structure, reliable in transmission, and has a stable transmission ratio. In practical applications, gears with appropriate module and number of teeth can be selected according to different transmission requirements.

[0047] By adjusting the current of the magnetic powder brake 2, the magnitude of the braking torque it generates can be precisely controlled. Increasing the current increases the braking torque; decreasing the current decreases the braking torque, thus flexibly adapting to the unwinding requirements of base fabric rolls 11 of different specifications.

[0048] Specifically, a small gear 4 is fixedly installed at one end of the air expansion shaft 5, and a large gear 3 is assembled on the output shaft of the magnetic powder brake 2. The large gear 3 and the small gear 4 mesh with each other for transmission. This meshing transmission method can effectively transmit power and can achieve deceleration or speed-up transmission according to the gear ratio of the large and small gears, further optimizing the control accuracy of the unwinding process and ensuring that the base fabric is unwound smoothly and stably.

[0049] The frame 1 is equipped with a pressing and conveying assembly for the smooth transport of the base fabric. This pressing and conveying assembly mainly consists of an upper pressure roller 13 and a lower pressure roller 14. Each end of the upper pressure roller 13 is connected to a pressing cylinder 15. The pressing cylinders 15 can precisely drive the upper pressure roller 13 downwards according to actual needs, firmly pressing the base fabric onto the lower pressure roller 14, ensuring that the base fabric does not slip during transport.

[0050] A geared motor 7 is also installed on the frame 1. Its output shaft is connected to the lower pressure roller 14 by means of a coupling or direct key, so as to provide stable rotation power for the lower pressure roller 14.

[0051] Specifically, the two ends of the lower pressure roller 14 are securely fixed to the frame 1 by means of the first bearing housing 19. The first bearing housing 19 can be of integral or split structure, depending on the convenience of installation and maintenance, to ensure that the lower pressure roller 14 can rotate smoothly. A guide plate 6 is provided on one side of the frame 1, on which a vertical groove for placing the upper pressure roller 13 is opened. The size of the groove is adapted to the upper pressure roller 13 to ensure that the upper pressure roller 13 slides smoothly in it without shaking. A second bearing housing 18 is installed on the outer side of the guide plate 6 and is pivotally connected to the upper pressure roller 13. This bearing housing can move with the upper pressure roller 13.

[0052] The upper end of the pressing cylinder 15 is hinged to one end of the support member 17, and the other end of the support member 17 is fixed to the frame 1. This hinge structure allows the pressing cylinder 15 to swing flexibly. The piston end of the pressing cylinder 15 is hinged to the second bearing seat 18. When the pressing cylinder 15 extends or retracts, it can drive the second bearing seat 18 and the upper pressure roller 13 to move up and down along the slide groove through the piston end, thereby realizing the pressing and releasing operation of the base fabric.

[0053] Preferably, a plurality of passive wheel couplings 9 are evenly distributed on the upper pressure roller 13. These passive wheel couplings 9 can be fixed to the upper pressure roller 13 by common methods such as key connection or interference fit, ensuring a firm connection and synchronous rotation with the upper pressure roller 13. A plurality of driving wheel couplings 8 are correspondingly provided on the lower pressure roller 14. The driving wheel couplings 8 can also be reliably connected and installed on the lower pressure roller 14. The passive wheel couplings 9 and driving wheel couplings 8 correspond one-to-one. During the transmission of the base fabric, the driving wheel couplings 8 drive the passive wheel couplings 9 to rotate, thereby assisting in the smooth transmission of the base fabric, reducing slippage, and improving transmission efficiency and stability.

[0054] The base fabric unwinding mechanism is a component of the base fabric unwinding equipment. It is closely integrated with other parts of the base fabric unwinding equipment and shares the control system, power supply system, air supply system, vacuum system, etc. of the base fabric unwinding equipment. Through a unified interface and operation instructions, it realizes the coordinated operation of each link and achieves automated production.

[0055] The quick-release base fabric unwinding mechanism with brake provided by this utility model features an innovative design while maintaining cost-effectiveness. A standard magnetic powder brake is added to the end of the base fabric roll. This brake can precisely adjust the current based on the specifications and material of the base fabric in actual production, flexibly controlling the braking torque to effectively ensure the stability of the base fabric unwinding process. Simultaneously, the structure employing a U-shaped groove support bearing and pressure plate, utilizing the rotation of the pressure plate to open and close the U-shaped groove, allows for rapid installation and disassembly of the air shaft. This simple and cost-effective design fully meets process requirements and significantly improves overall production efficiency.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-release base fabric unwinding mechanism with a brake, comprising a frame, characterized in that: An air expansion shaft is horizontally arranged on the frame, and the air expansion shaft is used to place the base fabric roll; pressure plates are provided at both ends of the air expansion shaft, one end of the pressure plate is rotatably connected to the frame via a pivot, and the other end is locked to the frame via a locking device, so as to realize the quick installation and removal of the air expansion shaft; A magnetic powder brake is installed on the frame, and the magnetic powder brake is connected to the air shaft by gear transmission. The frame is equipped with a pressing and transmission assembly, which includes an upper pressing roller and a lower pressing roller. The two ends of the upper pressing roller are respectively connected to a pressing cylinder. The pressing cylinder drives the upper pressing roller to move down and press the base fabric onto the lower pressing roller. The frame is equipped with a reduction motor that drives the lower pressing roller to rotate.

2. The base fabric unwinding mechanism according to claim 1, characterized in that, One end of the air shaft is provided with a small gear, and the output shaft of the magnetic powder brake is provided with a large gear. The large gear and the small gear mesh and drive each other.

3. The base fabric unwinding mechanism according to claim 1, characterized in that, The two ends of the lower pressure roller are fixed to the frame by the first bearing seat. A guide plate is provided on one side of the frame. A groove for placing the upper pressure roller is provided vertically on the guide plate. A second bearing seat is provided on the outside of the guide plate and pivotally connected to the upper pressure roller. The upper end of the pressing cylinder is hinged to one end of the support member, and the other end of the support member is fixed to the frame. The piston end of the pressing cylinder is hinged to the second bearing seat.

4. The base fabric unwinding mechanism according to claim 3, characterized in that, The upper pressure roller is provided with several passive wheel couplings, and the lower pressure roller is provided with several active wheel couplings, with the passive wheel couplings and active wheel couplings corresponding vertically.

5. The base fabric unwinding mechanism according to claim 1, characterized in that, The locking component is a star nut, the pressure plate is provided with a through hole for inserting one end of the star nut, and the frame is provided with a threaded hole for locking with the star nut.

6. The base fabric unwinding mechanism according to claim 1, characterized in that, The frame is equipped with a pair of U-shaped groove support bearings, and the two ends of the air expansion shaft are respectively placed in the corresponding U-shaped groove support bearings; the pressure plate can rotate 180° around the pivot to open or close the upper opening of the U-shaped groove support bearing.

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