Support mechanism for constant pressure contact roller for aramid yarn winding

Abstract

The utility model discloses a kind of support mechanism of aramid yarn winding with constant pressure contact roller, it includes frame, contact roller and pressure detection device, the contact roller is rotatably connected on bearing seat, the side of bearing seat is provided with sliding block, the sliding block is slidably connected in slide groove on frame, driving assembly is connected on the sliding block, the driving assembly is used to drive sliding block to move up and down, the pressure detection device is used to detect the pressure suffered by the contact roller and control the driving assembly action.The utility model can realize aramid yarn constant pressure winding, reaches the effect of automatically adjusting contact pressure of contact roller.

Description

Technical Field

[0001] This utility model relates to the technical field of yarn winding equipment, and in particular to a support mechanism for a constant pressure contact roller for winding aramid yarn. Background Technology

[0002] Aramid yarn, as a high-performance fiber material, is widely used in high-end fields such as aerospace, military protection, and sporting goods due to its excellent properties such as high strength, high modulus, high temperature resistance, and chemical corrosion resistance. As the performance requirements of these high-end fields continue to increase, the quality and performance of aramid yarn become increasingly important, and its winding quality plays a crucial role in subsequent processing and use. Excellent winding ensures that the yarn maintains stable performance in subsequent stages, guaranteeing the quality of related high-end products. Therefore, aramid yarn winding technology is constantly developing and improving.

[0003] In existing aramid yarn winding equipment, specific support methods are often used to achieve contact between the contact roller and the yarn package. Rigid support is a common method, which uses a fixed structure to support the contact roller and ensure contact with the yarn package. Additionally, simple spring support is widely used. This method utilizes the elasticity of the spring to provide cushioning and support, allowing the contact roller to adapt to changes during the yarn winding process to some extent. These methods have met some of the needs of aramid yarn winding for a certain period.

[0004] However, existing support methods have significant drawbacks. Rigid support lacks flexibility and cannot automatically adjust the contact pressure according to actual changes during yarn winding. This can easily lead to excessive pressure damaging the yarn, or insufficient pressure resulting in loose winding. While simple spring support provides some elastic cushioning, the spring constant decays with use over time and frequency, making it difficult to maintain constant contact pressure and failing to meet the high-precision constant pressure contact requirements of aramid yarns during winding. Utility Model Content

[0005] This application provides a support mechanism for a constant pressure contact roller for aramid yarn winding, which realizes constant pressure winding of aramid yarn and achieves the effect of automatically adjusting the contact pressure of the contact roller.

[0006] This application provides a support mechanism for a constant pressure contact roller used in aramid yarn winding, which adopts the following technical solution: A support mechanism for a constant pressure contact roller for aramid yarn winding includes a frame, a contact roller, and a pressure detection device. The contact roller is rotatably connected to a bearing seat. A slider is provided on one side of the bearing seat. The slider is slidably connected to a groove on the frame. A drive assembly is connected to the slider. The drive assembly is used to drive the slider to move up and down. The pressure detection device is used to detect the pressure on the contact roller and control the operation of the drive assembly.

[0007] By adopting the above technical solution, the support mechanism of the constant pressure contact roller for aramid yarn winding designed in this utility model first detects the pressure when the yarn is in normal contact with the contact roller and presets the position of the slider on the groove. When the pressure on the contact roller is abnormal, the signal is transmitted to the drive component after detection by the pressure detection device. Then, the position of the bearing seat and the contact roller is adjusted by the slider. In this process, the position of the contact roller can be automatically adjusted according to the pressure change of the contact roller during the winding of aramid yarn to maintain a suitable contact pressure, so that the aramid yarn is wound evenly and tightly on the winding drum, forming a yarn package with a neat appearance and tight structure, avoiding problems such as uneven tension, uneven surface or even edge collapse, and ensuring the performance of the yarn in subsequent processing and use.

[0008] Preferably, the drive assembly includes a lead screw and a drive motor, one end of the lead screw is threadedly connected to the slider, and the output shaft of the drive motor is coaxially and fixedly connected to the lead screw.

[0009] By adopting the above technical solution, the drive assembly consisting of a lead screw and a drive motor can move the slider up and down during use, thereby adjusting the position of the contact roller to precisely control the contact pressure between the contact roller and the yarn package, meeting the high-precision requirement of constant pressure contact during the winding of aramid yarn.

[0010] Preferably, a guide structure is provided between the slider and the frame. The guide structure includes a guide rod fixed to the frame and a guide hole corresponding to the slider. The guide rod passes through the guide hole and restricts the rotational movement of the slider.

[0011] By adopting the above technical solution, the guide structure can prevent the slider from rotating during the movement, allowing the slider to move smoothly along the groove, thereby ensuring the stable up and down movement of the contact roller and guaranteeing the stability and accuracy of the contact pressure between the contact roller and the yarn package.

[0012] Preferably, the pressure detection device includes a strain gauge attached to the surface of the metal core layer of the contact roller, and a signal conversion module electrically connected to the strain gauge.

[0013] By adopting the above technical solution, the strain gauge can accurately detect the pressure on the contact roller during use, providing a reliable basis for the operation of the drive component, so that the contact roller maintains a stable and appropriate contact pressure during the winding of aramid yarn, and ensures the quality of yarn winding.

[0014] Preferably, a drive device for driving the contact roller to rotate is provided on one side of the bearing housing.

[0015] By adopting the above technical solution, the drive equipment can directly drive the contact roller to rotate during use, without the need for an additional complex transmission structure, thus simplifying the overall structure of the equipment.

[0016] Preferably, the outer peripheral surface of the contact roller is covered with an elastic material layer, which can better sense the pressure of the yarn on the contact roller.

[0017] By adopting the above technical solution, the contact roller can more sensitively sense changes in yarn pressure during use, which helps the pressure detection device to obtain pressure information in a timely manner and control the operation of the drive components to maintain constant contact pressure during the winding process.

[0018] Preferably, the frame includes an upper frame, a lower frame, and a column vertically connecting the two, and the slide groove is provided on the column.

[0019] By adopting the above technical solution, the frame is set with an upper frame, a lower frame and a column structure during use. The slide groove is set on the column to provide a stable sliding track for the slider, ensuring that the contact roller can move up and down stably during the winding process.

[0020] In summary, this application has the following beneficial effects: 1. The present invention relates to a support mechanism for a constant pressure contact roller for winding aramid yarn. The pressure detection device detects the pressure on the contact roller and controls the operation of the drive component. It can automatically adjust the contact pressure according to the changes in the yarn winding process to avoid excessive pressure damaging the yarn or insufficient pressure causing loose winding. 2. The present invention provides a support mechanism for a constant pressure contact roller for winding aramid yarn. The driving component drives the slider to move up and down, which enables the contact roller to maintain a stable and appropriate contact pressure during the winding process, so that the aramid yarn is wound evenly and tightly on the winding drum, forming a yarn package with a neat appearance and compact structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a schematic diagram showing the internal structure of the contact roller in the embodiment; Explanation of reference numerals in the attached drawings: 1. Frame; 2. Contact roller; 3. Pressure detection device; 31. Strain gauge; 4. Bearing housing; 5. Slider; 6. Slide groove; 7. Drive assembly; 71. Lead screw; 72. Drive motor; 8. Guide structure; 81. Guide rod. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] This utility model discloses a support mechanism for a constant pressure contact roller used in aramid yarn winding, such as... Figure 1 and Figure 2 As shown, the assembly includes a frame 1, a contact roller 2, a pressure detection device 3, a drive assembly 7, and a bearing housing 4. The contact roller 2 is rotatably connected to the bearing housing 4. A slider 5 on one side of the bearing housing 4 is slidably connected to a groove 6 in the frame 1. The drive assembly 7 is connected to the slider 5 to drive its up and down movement. The pressure detection device 3 detects the pressure on the contact roller 2 and controls the drive assembly 7, achieving the beneficial effect of automatically adjusting the contact pressure according to the yarn winding condition, ensuring stable contact pressure, and improving the winding quality of aramid yarn. This is because the pressure detection device 3 monitors the pressure of the contact roller 2 in real time, and the drive assembly 7 adjusts the position of the slider 5 according to the detection results, thereby changing the contact pressure between the contact roller 2 and the yarn package.

[0024] Specifically, the contact roller 2 includes a metal core layer and an elastic material layer covering its outer surface. The metal core layer is generally made of high-strength steel, possessing good rigidity and stability, and providing support for the contact roller 2. The elastic material layer can be made of materials such as rubber, which can better sense the pressure of the yarn on the contact roller 2. When the yarn comes into contact with the contact roller 2, the elastic material layer undergoes a certain deformation, thus more accurately transmitting the pressure to the interior of the contact roller 2. Of course, the elastic material layer can also be replaced with other elastic materials such as silicone, as long as a similar pressure sensing effect can be achieved.

[0025] The bearing housing 4 supports the contact roller 2, allowing it to rotate freely. The bearing housing 4 is typically made of materials such as cast iron, possessing a certain level of strength and wear resistance. A slider 5 is provided on one side of the bearing housing 4. The slider 5 is generally cuboid in shape and made of a metal material such as aluminum alloy, characterized by its light weight and high strength. The slider 5 is fixedly connected to the bearing housing 4, ensuring the stability of the connection. The slider 5 is slidably connected to the groove 6 on the frame 1.

[0026] The drive assembly 7 includes a lead screw 71 and a drive motor 72. One end of the lead screw 71 is threadedly connected to the slider 5. When the lead screw 71 rotates, it drives the slider 5 to move up and down. The drive motor 72 can be a stepper motor, which can precisely control the rotation angle and speed. The output shaft of the drive motor 72 is coaxially and fixedly connected to the lead screw 71, and the connection is achieved through a coupling or other device to ensure stable power transmission. Of course, the drive motor 72 can also be replaced by other types of motors such as servo motors, as long as they can drive the lead screw 71. The combination of the lead screw 71 and the drive motor 72 can precisely control the movement of the slider 5, thereby adjusting the position and pressure of the contact roller 2.

[0027] The pressure detection device 3 includes a strain gauge 31 attached to the surface of the metal core layer of the contact roller 2, and a signal conversion module electrically connected to the strain gauge 31. The strain gauge 31 is typically a foil strain gauge, which has advantages such as high sensitivity and good linearity. When the contact roller 2 is subjected to pressure, the metal core layer undergoes a slight deformation, and the strain gauge 31 also experiences a change in resistance. The signal conversion module converts the resistance change of the strain gauge 31 into an electrical signal, which is then transmitted to the control system for controlling the drive assembly 7. The signal conversion module can employ dedicated strain signal amplifiers or similar equipment, which can amplify and process weak strain signals, improving detection accuracy.

[0028] A guide structure 8 is provided between the slider 5 and the frame 1. The guide structure 8 includes a guide rod 81 fixed to the frame 1 and a corresponding guide hole in the slider 5. The guide rod 81 is generally a cylindrical metal rod made of materials such as stainless steel, which has good wear resistance and corrosion resistance. The guide rod 81 passes through the guide hole, which can restrict the rotational movement of the slider 5 and ensure that the slider 5 can only move in a straight line along the slide groove 6. The diameter of the guide hole is slightly larger than the diameter of the guide rod 81 to ensure that the guide rod 81 can pass through smoothly, while also providing a certain guiding function.

[0029] The frame 1 includes an upper frame, a lower frame, and vertical columns connecting the two. A sliding groove 6 is located on the column. The upper and lower frames can be welded from profiles such as channel steel, providing high strength and stability. The column is generally a square steel pipe, fixed to the upper and lower frames by welding or bolting. The sliding groove 6 can be formed on the column using milling or other machining processes to ensure its precision and surface quality.

[0030] In addition, a drive device for driving the contact roller 2 to rotate is provided on one side of the bearing housing 4. The drive device can be a common motor or a cylinder. This allows the contact roller 2 to continue rotating during the yarn winding process, thus realizing the yarn winding operation.

[0031] The implementation principle of this embodiment is as follows: The support mechanism monitors the pressure on the contact roller 2 in real time through the pressure detection device 3. When the pressure changes, the signal conversion module converts the pressure signal into an electrical signal and transmits it to the control system. The control system controls the drive motor 72 to rotate according to the preset pressure value. The drive motor 72 drives the lead screw 71 to rotate, thereby causing the slider 5 to move up and down along the slide groove 6, adjusting the position and pressure of the contact roller 2 to maintain a constant pressure. Compared with existing rigid supports and simple spring supports, this support mechanism can automatically adjust the contact pressure according to the actual situation during the yarn winding process, avoiding the problem of excessive pressure damaging the yarn or insufficient pressure causing loose winding. This greatly improves the winding quality of aramid yarn and meets the high-precision requirements of constant pressure contact during the winding process of aramid yarn.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A support mechanism for a constant pressure contact roller used in aramid yarn winding, characterized in that: The device includes a frame (1), a contact roller (2), and a pressure detection device (3). The contact roller (2) is rotatably connected to a bearing seat (4). A slider (5) is provided on one side of the bearing seat (4). The slider (5) is slidably connected to a groove (6) on the frame (1). A drive assembly (7) is connected to the slider (5). The drive assembly (7) is used to drive the slider (5) to move up and down. The pressure detection device (3) is used to detect the pressure on the contact roller (2) and control the operation of the drive assembly (7).

2. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: The drive assembly (7) includes a lead screw (71) and a drive motor (72). One end of the lead screw (71) is threadedly connected to the slider (5), and the output shaft of the drive motor (72) is coaxially and fixedly connected to the lead screw (71).

3. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: A guide structure (8) is provided between the slider (5) and the frame (1). The guide structure (8) includes a guide rod (81) fixed to the frame (1) and a guide hole corresponding to the slider (5). The guide rod (81) passes through the guide hole and restricts the rotational movement of the slider (5).

4. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: The pressure detection device (3) includes a strain gauge (31) attached to the surface of the metal core layer of the contact roller (2) and a signal conversion module electrically connected to the strain gauge (31).

5. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: A drive device for driving the contact roller (2) to rotate is provided on one side of the bearing housing (4).

6. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: The outer peripheral surface of the contact roller (2) is covered with an elastic material layer, which can better sense the pressure of the yarn on the contact roller (2).

7. The support mechanism for a constant pressure contact roller for aramid yarn winding according to claim 1, characterized in that: The frame (1) includes an upper frame, a lower frame and a column that vertically connects the two, and the slide (6) is provided on the column.

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