Fiber filament broadening adjustment device, fiber filament production device, and broadening adjustment method

Abstract

The present disclosure relates to a fiber yarn width adjustment device, a fiber yarn production device and a width adjustment method. The fiber yarn width adjustment device is used for adjusting the width of the fiber yarn, comprising a limiting ring and an adjusting member. The limiting ring is used for the fiber yarn to pass through, and the two sides of the fiber yarn in the width direction abut against the inner wall of the limiting ring. The width of the limiting ring is different along a first direction, wherein the first direction is perpendicular to the plane where the fiber yarn is located. The adjusting member is adjacent to the limiting ring, and the adjusting member is used for the fiber yarn passing through the limiting ring to bypass. The adjusting member and the limiting ring are relatively movable, and the adjusting member is used to drive the fiber yarn to move in the limiting ring along the first direction. The fiber yarn width adjustment device provided by the present disclosure realizes the adjustment of the width of the fiber yarn by utilizing the different sizes of the limiting ring along the first direction, and has the advantages of simple structure, easy realization and operation.

Description

Technical Field

[0001] This disclosure relates to the field of machining technology, and in particular to a fiber filament spreading adjustment device, a fiber filament production device, and a spreading adjustment method. Background Technology

[0002] In the industrial production of carbon fiber, large-scale, high-quality production has become one of the key technical challenges. Among these challenges, the broadening of carbon fiber tows is a crucial factor affecting tow quality and downstream applications of carbon fiber, occurring throughout the entire manufacturing process.

[0003] Currently, in the carbon fiber manufacturing process, the determination of tow width is usually carried out through traditional manual inspection methods, which are divided into online manual prediction and offline manual verification. Online manual prediction suffers from drawbacks such as large errors, low efficiency, susceptibility to interference, and strong subjectivity, making it difficult to establish quantifiable quality standards. Offline manual verification is lagging and cannot promptly expose production line problems. With the continuous expansion of carbon fiber production scale, the shortcomings of manual inspection are amplified. The workload increases with the expansion of carbon fiber production scale, and the rates of false positives and false negatives are high due to visual fatigue among personnel. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a fiber filament spreading adjustment device, a fiber filament production device, and a spreading adjustment method. It can adjust the fiber filament spreading by utilizing the size of a limiting ring, and has a simple structure that is easy to implement and operate.

[0005] According to embodiments of this disclosure, a fiber filament spreading adjustment device is provided for adjusting the spreading of fiber filaments, comprising:

[0006] A limiting ring is provided for the fiber filament to pass through, with both sides of the fiber filament abutting against the inner wall of the limiting ring in the spreading direction. The width of the limiting ring varies along a first direction, wherein the first direction is perpendicular to the plane in which the fiber filament is located.

[0007] An adjusting member, adjacent to the limiting ring, is used for the fiber filament passing through the limiting ring to bypass, the adjusting member and the limiting ring are movable relative to each other, and the adjusting member is used to drive the fiber filament to move within the limiting ring along the first direction.

[0008] In some exemplary embodiments of this disclosure, the fiber spreading adjustment device includes a fixing frame, and the limiting ring is fixedly disposed on the fixing frame;

[0009] The adjusting member can be raised or lowered relative to the limiting ring along the first direction.

[0010] In some exemplary embodiments of this disclosure, the defining ring is provided in a plurality of ways along the second direction, and the adjusting member extends along the second direction, wherein the second direction is the arrangement direction of the fiber filaments.

[0011] In some exemplary embodiments of this disclosure, in the first direction, the adjustment member is configured to allow the filament to pass over it, and along the direction in which the adjustment member rises, the defining ring is a polygon with a gradually increasing width dimension.

[0012] In some exemplary embodiments of this disclosure, the limiting ring is an isosceles triangle, and in the first direction, the apex angle of the limiting ring faces the direction in which the adjusting member is lowered.

[0013] Another aspect of this disclosure provides a fiber filament production apparatus, including the fiber filament stretching adjustment device described in any of the above claims;

[0014] A fiber stretching test device is located upstream of the fiber stretching device, along the fiber conveying direction.

[0015] The control device is electrically connected to both the fiber spreading test device and the fiber spreading adjustment device.

[0016] Another aspect of this disclosure provides a method for adjusting the fiber width, using the aforementioned fiber production apparatus to adjust the fiber width, the method comprising:

[0017] Obtain the fiber width value before entering the fiber width adjustment device;

[0018] When the measured width value is greater than the first width value, the fiber width adjustment device is controlled to move the fiber within the limiting ring toward a position where the width dimension of the limiting ring decreases.

[0019] When the measured width value is less than the second width value, the fiber width adjustment device is controlled to move the fiber within the limiting ring toward a position where the width dimension of the limiting ring increases;

[0020] The second expansion value is less than the first expansion value.

[0021] In some exemplary embodiments of this disclosure, the adjusting member of the fiber spreading adjusting device is configured to allow the fiber to pass over it, and the defining ring is a polygon with a gradually increasing width dimension along the direction of the rising adjusting member;

[0022] The widening adjustment method includes:

[0023] When the measured width value is greater than the first width value, the adjusting member is controlled to descend, causing the fiber to move to a position within the limiting ring where the width dimension is less than the first width value.

[0024] When the measured width value is less than the second width value, the adjusting member is controlled to rise, driving the fiber filament to move to a position within the limiting ring where the width dimension is greater than the second width value.

[0025] In some exemplary embodiments of this disclosure, the adjusting member of the fiber spreading adjusting device is raised or lowered along the first direction, the limiting ring is an isosceles right triangle, and in the first direction, the apex angle of the limiting ring faces the direction in which the adjusting member is lowered;

[0026] The widening adjustment method includes:

[0027] When the measured width value is greater than the first width value, the downward adjustment parameter value of the adjusting component is controlled to be the ratio of the difference between the width value and the first width value to the width value.

[0028] When the measured width value is less than the second width value, the upward adjustment parameter of the adjusting element is controlled to be the ratio of the difference between the second width value and the width value to the width value.

[0029] In some exemplary embodiments of this disclosure, the fiber production apparatus further includes the broadening test device located downstream of the fiber adjusting device along the fiber conveying direction; and multiple defining rings are provided along a direction parallel to the extension direction of the adjusting member for multiple bundles of the fiber to pass through.

[0030] The widening adjustment method includes:

[0031] Obtain the widthening values ​​of multiple bundles of fibers before they enter the fiber widthening adjustment device, calculate the width dispersion coefficient, and issue an alarm signal when the width dispersion value is greater than a first width dispersion value; and / or

[0032] The adjusted width value of the fiber obtained from the fiber width adjustment device is obtained. If the adjusted width value is greater than the first width value or less than the second width value, it is judged as unqualified. If the number of unqualified occurrences is greater than or equal to the first preset number, an alarm signal is issued.

[0033] The fiber filament widening adjustment device, fiber filament production apparatus, and widening adjustment method disclosed herein have the following beneficial effects: Since the limiting ring has different dimensions along the first direction, the adjusting member drives the fiber filament to move relative to the limiting ring in the first direction, thus positioning the fiber filament at different widths on the limiting ring. The two sides of the fiber filament also abut against the inner wall of the limiting ring, which restricts the widening of the fiber filament. The fiber filament widens at different positions on the limiting ring. Therefore, this disclosure adjusts the fiber filament widening by adjusting the relative positions of the limiting ring and the adjusting member. Utilizing the different dimensions of the limiting ring to adjust the fiber filament widening has a simple structure, is easy to implement and operate, and does not require complex devices or cumbersome procedures.

[0034] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0036] Figure 1 This is a schematic diagram of a fiber filament spreading adjustment device according to an exemplary embodiment.

[0037] Figure 2 This is a schematic diagram of a defined ring according to an exemplary embodiment.

[0038] Figure 3 This is a schematic diagram of an adjustment member according to an exemplary embodiment.

[0039] Figure 4 This is a partially enlarged view of a defined ring according to an exemplary embodiment.

[0040] Figure 5 This is a diagram illustrating a fiber filament production process according to an exemplary embodiment.

[0041] Figure 6 This is a process control example illustrated according to an exemplary embodiment. Figure 1 .

[0042] Figure 7 This is a diagram illustrating the relationship between the mean of broadening, the discrete value of broadening, and the adjustment state according to an exemplary embodiment.

[0043] Figure 8 This is a process control example illustrated according to an exemplary embodiment. Figure 2 .

[0044] Figure 9 This is a diagram illustrating the relationship between the average width, the lifting and lowering of the hydraulic adjustment roller, and the adjustment state, according to an exemplary embodiment. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0046] If this disclosure uses terms relating to directional indications or positional relationships (e.g., up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, terms such as "first" and "second" in this disclosure are used only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0047] Please refer to Figures 1 to 5 , Figure 1 This is a schematic diagram of a fiber spreading adjustment device. Figure 2 This is a schematic diagram of a limiting ring. Figure 3 This is a schematic diagram of the adjusting component. Figure 4 This is a magnified view of a portion of the bounding ring (half of the bounding ring). Figure 5 This is a process diagram for fiber filament production. This disclosure provides a fiber filament widening adjustment device a, used to adjust the widening of the fiber filament, including a limiting ring 100 and an adjusting member 200. The limiting ring 100 is used for the fiber filament to pass through, and the two sides of the fiber filament in the widening direction abut against the inner wall of the limiting ring 100. The width of the inner wall of the limiting ring 100 is the widening dimension of the fiber filament. (Combined with...) Figure 2 and Figure 4 Along the first direction x, the width of the limiting ring 100 varies, wherein the first direction x is perpendicular to the plane containing the fiber filament. An adjusting member 200 is adjacent to the limiting ring 100 and is used to allow the fiber filament passing through the limiting ring 100 to bypass it; this can be understood as the same bundle of fiber filaments passing through the limiting ring 100 and bypassing the adjusting member 200. The adjusting member 200 and the limiting ring 100 are relatively movable, and the adjusting member 200 is used to drive the fiber filament to move within the limiting ring 100 along the first direction x.

[0048] Combination Figure 1Firstly, the limiting ring 100 has different dimensions along the first direction x. The adjusting member 200 drives the fiber filament to move relative to the limiting ring 100 in the first direction x, thus positioning the fiber filament at different widths on the limiting ring 100. The two sides of the fiber filament also abut against the inner wall of the limiting ring 100, which restricts the widening of the fiber filament. Therefore, the widening of the fiber filament varies at different positions on the limiting ring 100. It should be noted that the relative movement between the adjusting member 200 and the limiting ring 100 can be relative movement along the first direction x. For example, the limiting ring 100 can be fixed while the adjusting member 200 moves along the first direction x, or vice versa. Alternatively, the adjusting member 200 can be configured as a column with varying diameters along the first direction x. Moving the adjusting member 200 along the second direction y changes the position of the fiber filament wound around the adjusting member 200 relative to the limiting ring 100 in the first direction x, according to the change in the column's dimensions.

[0049] This disclosure adjusts the fiber filament width by regulating the relative position of the limiting ring 100 and the adjusting member 200. The adjustment of fiber filament width is achieved by varying the size of the limiting ring 100; its structure is simple, easy to implement and operate, and requires no complex devices or cumbersome procedures. Furthermore, by appropriately changing the relative position between the limiting ring 100 and the adjusting member 200, fiber filament width can be controlled more precisely to meet the needs of different scenarios and applications, improving production flexibility and efficiency.

[0050] In one embodiment, combined with Figure 2 and Figure 3The fiber filament widening adjustment device a includes a fixed frame 300, on which a limiting ring 100 is fixedly mounted. The fixed frame 300 ensures the stability and durability of the limiting ring 100, reducing positional shifts or deformations of the limiting ring 100 as the fiber filament continuously passes through it for widening, thus further improving the accuracy of the fiber filament widening adjustment. The adjusting member 200 can rise or fall relative to the limiting ring 100 along a first direction x. That is, while the limiting ring 100 is fixed in position, the adjusting member 200 is movable. Because the width of the limiting ring 100 varies along the first direction x, and the adjusting member 200 moves along the first direction x, the movement of the adjusting member 200 directly affects the height of the fiber filament within the limiting ring 100 in the first direction x. There is a simple geometric relationship between the range of motion of the adjusting member 200 and the change in the height of the fiber filament, either equal or a simple trigonometric function relationship. By controlling the displacement of the adjusting member 200, the height change of the fiber filament within the limiting ring 100 can be directly calculated, thereby obtaining the width dimension of the corresponding position of the limiting ring 100, which is the widening of the fiber filament. Therefore, in this embodiment, the correspondence between the movement of the adjusting member 200 and the adjustment of the fiber filament widening is simple and easy to calculate. The adjusting member 200 can be a hydraulic adjusting roller adapted with a hydraulic servo valve. The control system directly drives the valve core displacement of the hydraulic servo valve, changing the hydraulic oil flow and direction, thereby driving the hydraulic cylinder piston to move, and causing the hydraulic adjusting roller, i.e., the adjusting member 200, to rise and fall.

[0051] In one embodiment, combined with Figure 2 Multiple limiting rings 100 are provided along the second direction y, and adjusting members 200 extend along the second direction y, where the second direction y is the arrangement direction of the fiber filaments. Multiple limiting rings 100 allow multiple bundles of fiber filaments to pass through, and the adjusting members 200 also extend along the second direction y, allowing the movement of the adjusting members 200 to simultaneously adjust the height of multiple bundles of fiber filaments relative to the multiple limiting rings 100, thereby simultaneously adjusting the width of the multiple bundles of fiber filaments. This embodiment can achieve synchronous adjustment of the width of multiple bundles of fiber filaments, significantly improving production efficiency and product quality consistency. This batch adjustment method is particularly suitable for large-scale production scenarios, effectively reducing manual intervention and improving the degree of automation in production.

[0052] In one embodiment, combined with Figure 1 and Figure 2In the first direction x, the adjusting member 200 is configured to allow the fiber filament to pass over it. Along the direction in which the adjusting member 200 rises, the limiting ring 100 is a polygon with a gradually increasing width, such as a common trapezoid, whose two sides are at a certain angle, causing the width to gradually increase from one end to the other; another example is a triangle, where the width increases in a certain direction through specific side lengths and angle designs; yet another example is a semicircle, whose arc-shaped contour naturally brings about a smooth change in width. On the one hand, the regularly increasing width of this limiting ring 100 facilitates the calculation of the expansion dimension of the fiber filament within the limiting ring 100 after adjusting the height of the adjusting member 200's movement along the first direction x. This further simplifies the design of the adjustment logic and provides convenience for technicians.

[0053] On the other hand, based on the structure of this embodiment, when the adjusting member 200 rises along the first direction x, the width of the fiber filament, adjusted by the limiting ring 100, gradually increases; conversely, when the adjusting member 200 descends along the first direction x, the width of the fiber filament decreases. Firstly, this positive correlation reduces error transmission in intermediate stages, making the entire adjustment process more stable and reliable. Secondly, if the surface of the adjusting member 200 is too smooth and the friction is too small, the fiber filament will hardly receive sufficient lateral force when passing through the adjusting member 200, thus limiting its width. In this embodiment, since the fiber filament is wound around the adjusting member 200, when the adjusting member 200 rises along the first direction x, the adjusting member 200 tightens the fiber filament, increasing the total frictional force generated at the contact surface between the fiber filament and the adjusting member 200, thus increasing the width of the fiber filament under the action of friction. When the adjusting member 200 descends along the first direction x, the total frictional force between the fiber filament and the adjusting member 200 decreases, the width of the fiber filament is less affected by friction, and its width decreases accordingly. This embodiment combines the effect of friction on the fiber filament with the restriction of the fiber filament corresponding to the limiting ring 100.

[0054] In one embodiment, reference Figure 1 and Figure 2 The limiting ring 100 is an isosceles triangle, and in the first direction x, the vertex angle of the limiting ring 100 faces the direction in which the adjusting member 200 is lowered. The vertex angle of an isosceles triangle is the included angle formed by the two equal sides. The geometric structure of an isosceles triangle is simple, and the movement distance of the adjusting member 200 in the first direction x can be directly calculated using trigonometric functions to determine the corresponding widening adjustment size. Further combining... Figure 4 The limiting ring 100 can be an isosceles right triangle. Figure 4 It is half of an isosceles right triangle.

[0055] refer to Figure 1This disclosure also provides a fiber production apparatus, including the fiber filament spreading adjustment device a of any of the above-mentioned embodiments, a spreading test device 400, and a control device (not shown in the figure). Along the fiber filament conveying direction, the spreading test device 400 is located upstream of the fiber filament adjustment device and is used to detect the spreading value of the fiber filament before spreading adjustment. The control device is electrically connected to both the spreading test device 400 and the fiber filament spreading adjustment device a. The control device is used to control the adjusting element 200 in the spreading adjustment device according to the spreading value measured by the spreading test device 400, thereby adjusting the spreading of the fiber filament. In addition, along the fiber filament conveying direction, a spreading test device 400 can also be provided downstream of the fiber filament adjustment device to detect whether the spread of the adjusted fiber filament is qualified, and to provide real-time feedback on the spreading adjustment effect of the fiber filament spreading adjustment device a based on this downstream spreading test device 400. The control device includes a computer and a DCS-based control system. The control device stores standard values. The fiber spreading test device 400 sends the fiber spreading data measured to the computer equipped with the DCS control system. The control device processes the fiber spreading test data and makes logical judgments. Based on the judgments, it issues corresponding commands to control the fiber spreading adjustment device a.

[0056] This disclosure also provides a method for adjusting fiber width using the aforementioned fiber production apparatus. The method includes: acquiring the width value of the fiber before it enters the fiber width adjustment device a; when the measured width value is greater than a first width value, controlling the fiber width adjustment device a to move the fiber within a limiting ring towards a position where the width of the limiting ring decreases; when the measured width value is less than a second width value, controlling the fiber width adjustment device a to move the fiber within the limiting ring towards a position where the width of the limiting ring increases; wherein the second width value is less than the first width value. The first and second width values ​​define a qualified fiber width. When the width value exceeds the qualified range, by controlling the fiber width adjustment device a to move the fiber within the limiting ring 100 in a corresponding direction, precise adjustment of the fiber width is achieved, ensuring that the fiber width always meets production requirements. The first and second widthening values ​​can be flexibly set according to actual production needs, so that the widthening adjustment method can adapt to the production of fiber filaments of different specifications and uses, and has versatility and adaptability.

[0057] In one embodiment, the adjusting member 200 of the fiber spreading adjusting device a is raised or lowered along a first direction x, and the defining ring 100 is an isosceles right triangle, with the apex angle of the defining ring 100 pointing towards the direction in which the adjusting member 200 is lowered along the first direction x. The spreading adjustment method includes: when the measured spreading value is greater than a first spreading value, controlling the downward adjustment parameter of the adjusting member 200 to be the ratio of the difference between the spreading value and the first spreading value to the spreading value, with the percentage formula being (spreading value - first spreading value) * 100% / spreading value. When the measured spreading value is less than a second spreading value, controlling the upward adjustment parameter of the adjusting member 200 to be the ratio of the difference between the second spreading value and the spreading value to the spreading value, with the percentage formula being (second spreading value - spreading value) * 100% / spreading value. Since the limiting ring 100 is an isosceles right triangle, the distance the adjusting member 200 moves in the first direction x is equal to the change in the width value. Therefore, the change ratio of the width value can be directly calculated and used as the adjustment ratio of the adjusting member 200. This simplified calculation method in this embodiment greatly reduces the computation time and computational resource consumption.

[0058] In one embodiment, reference Figure 5 The arrows in the diagram indicate the direction of fiber conveying. The fiber production apparatus also includes a widening test device 400 located downstream of the fiber adjustment device along the fiber conveying direction. Multiple limiting rings 100 are provided parallel to the extension direction of the adjustment component 200 to allow multiple fiber bundles to pass through. Taking a T700-12K carbon fiber bundle as an example, up to 95 fiber bundles can be simultaneously tested and adjusted within a region. For the entire fiber production process, the widening test device 400 and the corresponding fiber widening adjustment device a can be installed in multiple sub-regions of the process, such as the south, central, and north regions. This allows for more comprehensive adjustment of the fiber throughout the entire process. The fiber results measured by the widening test device 400, acquired by the control device, can be processed into an average value for calculation.

[0059] The width adjustment method includes: obtaining the width values ​​of multiple fiber bundles before entering the fiber width adjustment device a, and calculating the width dispersion coefficient (CV). When the width dispersion value is greater than the first width dispersion value, it indicates that the width values ​​of the multiple fiber bundles differ too much, and the width is uneven. In this case, machine adjustment may not achieve the desired effect and is not suitable for uniform machine adjustment. An alarm signal needs to be issued to remind the operator. The alarm signal can be a continuous alarm sound from the device, a flashing warning light on the device to indicate the alarm status, or an alarm message displayed on the control device screen, including the width dispersion value and alarm level. When the width dispersion value is less than or equal to the first width dispersion value, it can be directly adjusted by the fiber width adjustment device a. The first dispersion value is 10%.

[0060] The fiber width adjustment method includes: acquiring the adjusted width value of the fiber filament from the fiber width adjustment device a; if the adjusted width value is greater than a first width value or less than a second width value, it is judged as unqualified; and if the number of unqualified occurrences is greater than or equal to a first preset number, an alarm signal is issued. If the fiber filament, after passing through the width adjustment device multiple times, still does not have a width between the appropriate first and second width values, it indicates that the fiber width adjustment device a has a problem and cannot meet production requirements. In this case, an alarm signal is issued to remind the operator to inspect and repair the equipment. The first preset number of occurrences can be 3.

[0061] refer to Figures 6 to 9 , Figure 6 This is an example of process control. Figure 1 This is a flowchart that first determines whether the fiber filaments need adjustment. Figure 7 It is a logic analysis classification diagram that shows the relationship between the broadened mean, the broadened discrete value (CV), and the adjustment state. Figure 8 and Figure 9 The table is based on tests and analyses of T700-12K carbon fiber bundles. Figure 8 This is an example of process control. Figure 2 This is a flowchart illustrating how, when it is determined that the fiber filaments need adjustment, the adjusting components are adjusted based on the measured width value. Figure 9 It is a diagram showing the relationship between the average width, the lifting and lowering of the hydraulic adjustment roller, and the adjustment status.

[0062] The specific method for adjusting fiber width can be summarized as follows: using a fiber width testing device to measure the average value and the width dispersion of multiple fiber bundles within a region, combined with... Figure 6 and Figure 8 First, determine whether fiber spreading adjustment device a is needed to adjust the fiber spreading. When the average spreading value is between 6.5 and 7.5, for example, 6.5, 6.8, 7, 7.2, 7.5 (which can be understood as being between the first and second spreading values ​​mentioned above), and the fiber spreading dispersion value is less than 5, it proves that the current fiber spreading is suitable for production, and the judgment result is that no spreading adjustment is needed (N), and the spreading value detection continues. When the spreading value is less than 6.5 or greater than 7.5, the current fiber spreading value needs to be adjusted to between 6.5 and 7.5, and the judgment result is that fiber adjustment is needed (Y).

[0063] Combination Figure 7 and Figure 9Since the adjusting component 200 can be a hydraulic adjusting roller adapted with a hydraulic servo valve, and the lifting adjusting component 200 is a lifting hydraulic adjusting roller, after determining that the fiber filament needs adjustment, the corresponding servo valve adjustment value of the adjusting component 200 is calculated based on the specific width value of the fiber filament, and the hydraulic adjusting roller is raised or lowered to adjust the width of the fiber filament. This corresponds to adjustment states Y1-Y6. If the width value is still unqualified after three consecutive adjustments, or if the width dispersion value is greater than 10%, an alarm signal needs to be issued to remind the user, corresponding to adjustment state Yn. Y1-Y6 correspond to the following: Y1 corresponds to raising the hydraulic adjusting roller by 40% when the measured average width value is between 5.0 and 5.5; Y2 corresponds to raising the hydraulic adjusting roller by 27% when the measured average width value is between 5.5 and 6.0; and Y3 corresponds to raising the hydraulic adjusting roller by 16.7% when the measured average width value is between 6.0 and 6.5. Y4 corresponds to reducing the hydraulic adjusting roller by 12.5% ​​when the measured average width is between 7.5 and 8.0. Y5 corresponds to reducing the hydraulic adjusting roller by 17.6% when the measured average width is between 8.0 and 8.5. Y6 corresponds to reducing the hydraulic adjusting roller by 22% when the measured average width is between 8.5 and 9.0.

[0064] In one specific embodiment, for example, if the control device detects that the average width of the fiber spreading test device 400 is 6.2, indicating that the fiber spreading is too small, the adjustment component 200 needs to be increased by 16.7% to adjust the fiber spreading to the acceptable range of 6.5-7.5. Alternatively, if the average width is 8.7, indicating that the spreading value is too large, the adjustment component needs to be decreased by 22% to adjust the fiber spreading to the range of 6.5-7.5. Furthermore, if the control device detects that the spreading dispersion value measured by the spreading test device 400 is greater than 10%, it indicates that the spreading values ​​of multiple fiber bundles differ significantly, and the fiber spreading adjustment device a cannot adjust them uniformly, requiring an alarm signal to notify manual intervention. The unit for spreading value is millimeters.

[0065] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0066] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A fiber filament spreading adjustment device, characterized in that, Used to regulate the broadening of fiber filaments, including: A limiting ring is provided for the fiber filament to pass through, with both sides of the fiber filament abutting against the inner wall of the limiting ring in the spreading direction. The width of the limiting ring varies along a first direction, wherein the first direction is perpendicular to the plane in which the fiber filament is located. An adjusting member, adjacent to the limiting ring, is used for the fiber filament passing through the limiting ring to bypass, the adjusting member and the limiting ring are movable relative to each other, and the adjusting member is used to drive the fiber filament to move within the limiting ring along the first direction; The fiber spreading adjustment device includes a fixing frame, and the limiting ring is fixedly disposed on the fixing frame; The adjusting member can be raised or lowered relative to the limiting ring along the first direction.

2. The fiber filament spreading adjustment device as described in claim 1, characterized in that, Along the second direction, the limiting ring is provided in multiple ways, and the adjusting member extends along the second direction, wherein the second direction is the arrangement direction of the fiber filaments.

3. The fiber filament spreading adjustment device as described in claim 2, characterized in that, In the first direction, the adjusting member is configured to allow the fiber to pass over it, and along the direction in which the adjusting member rises, the defining ring is a polygon with a gradually increasing width dimension.

4. The fiber filament spreading adjustment device as described in claim 3, characterized in that, The limiting ring is an isosceles triangle, and in the first direction, the apex angle of the limiting ring faces the direction in which the adjusting member is lowered.

5. A fiber filament production apparatus, characterized in that, Includes the fiber filament spreading adjustment device as described in any one of claims 1 to 4; A fiber stretching test device is located upstream of the fiber stretching device, along the fiber conveying direction. The control device is electrically connected to both the fiber spreading test device and the fiber spreading adjustment device.

6. A method for widening adjustment, characterized in that, The fiber filament production apparatus of claim 5 is used to adjust the filament width, wherein the filament width adjustment method includes: Obtain the fiber width value before entering the fiber width adjustment device; When the measured width value is greater than the first width value, the fiber width adjustment device is controlled to move the fiber within the limiting ring toward a position where the width dimension of the limiting ring decreases. When the measured width value is less than the second width value, the fiber width adjustment device is controlled to move the fiber within the limiting ring toward a position where the width dimension of the limiting ring increases; The second expansion value is less than the first expansion value.

7. The method for widening adjustment as described in claim 6, characterized in that, The adjusting member of the fiber spreading adjusting device is configured to allow the fiber to pass over it from above, and the defining ring is a polygon with a gradually increasing width dimension along the direction of the rising of the adjusting member; The widening adjustment method includes: When the measured width value is greater than the first width value, the adjusting member is controlled to descend, causing the fiber to move to a position within the limiting ring where the width dimension is less than the first width value; When the measured width value is less than the second width value, the adjusting member is controlled to rise, driving the fiber filament to move to a position within the limiting ring where the width dimension is greater than the second width value.

8. The method for widening adjustment as described in claim 7, characterized in that, The adjusting member of the fiber spreading adjusting device is raised or lowered along the first direction, and the limiting ring is an isosceles right triangle, with the apex angle of the limiting ring facing the direction in which the adjusting member is lowered in the first direction; The widening adjustment method includes: When the measured width value is greater than the first width value, the downward adjustment parameter value of the adjusting component is controlled to be the ratio of the difference between the width value and the first width value to the width value. When the measured width value is less than the second width value, the upward adjustment parameter of the adjusting element is controlled to be the ratio of the difference between the second width value and the width value to the width value.

9. The method for widening adjustment as described in claim 6, characterized in that, The fiber production apparatus further includes the stretching test device located downstream of the fiber adjustment device along the fiber conveying direction. Along a direction parallel to the extending direction of the adjusting member, multiple defining rings are provided for multiple bundles of the fiber filaments to pass through. The widening adjustment method includes: The spread values ​​of multiple bundles of fibers before entering the fiber spread adjustment device are obtained, and the spread dispersion value is calculated. When the spread dispersion value is greater than the first spread dispersion value, an alarm signal is issued. and / or The adjusted width value of the fiber filament from the fiber filament widening adjustment device is obtained. If the adjusted width value is greater than the first width value or less than the second width value, it is judged as unqualified. If the number of unqualified occurrences is greater than or equal to the first preset number, an alarm signal is issued.

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