Fiber widening adjusting device, fiber production device and widening adjusting method

Abstract

The invention relates to a fiber widening adjusting device, a fiber production device and a widening adjusting method. The fiber widening adjusting device is used for adjusting widening of fibers and comprises a limiting ring and an adjusting part. The limiting ring is used for allowing fibers to penetrate through, the two sides, in the widening direction, of the fibers abut against the inner wall of the limiting ring, the width sizes of the limiting ring are different in the first direction, and the first direction is perpendicular to the plane where the fibers are located. The adjusting part is adjacent to the limiting ring, the adjusting part is used for allowing fibers penetrating through the limiting ring to bypass, the adjusting part and the limiting ring can move relatively, and the adjusting part is used for driving the fibers to move in the limiting ring in the first direction. According to the fiber widening adjusting device, adjustment of fiber widening is achieved by means of different sizes of the limiting ring in the first direction, and the fiber widening adjusting device is simple in structure and easy to achieve and operate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of machining, and particularly to a fiber filament broadening adjusting device, a fiber filament production device, and a broadening adjusting method. Background Art

[0002] In the industrial production process of carbon fiber, the large-scale and high-quality production of carbon fiber has become one of the technical difficulties in industrial production. Among them, the broadening of the carbon fiber tow runs through the entire preparation process and is one of the important influencing factors for the quality of the carbon fiber tow and the downstream applications of the carbon fiber.

[0003] Currently, in the process of carbon fiber preparation, the determination of tow broadening is usually carried out by traditional manual inspection methods. Manual inspection is divided into on-line manual pre-judgment and off-line manual recheck. Among them, on-line manual pre-judgment has the disadvantages of large error, low efficiency, susceptibility to interference, and strong subjectivity, and it is difficult to form a quantitative quality standard. Off-line manual recheck has the disadvantage of lag and cannot expose production line problems in time. With the continuous expansion of the carbon fiber production scale, the disadvantages of manual inspection are also amplified. The work intensity increases continuously with the expansion of the carbon fiber production scale, and the misdetection rate and missed detection rate are high after the visual fatigue of the personnel. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present disclosure provides a fiber filament broadening adjusting device, a fiber filament production device, and a broadening adjusting method. It can adjust the broadening of the fiber filament by using the size of the limiting ring, and has a simple structure, which is easy to implement and operate.

[0005] According to an embodiment of the present disclosure, there is provided a fiber filament broadening adjusting device for adjusting the broadening of a fiber filament, including:

[0006] A limiting ring for the fiber filament to pass through, with both sides of the fiber filament in the broadening direction abutting against the inner wall of the limiting ring. Along a first direction, the width dimension of the limiting ring is different, where the first direction is perpendicular to the plane where the fiber filament is located;

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

[0008] In some exemplary embodiments of the present disclosure, the fiber filament broadening adjusting device includes a fixing frame, and the limiting ring is fixedly arranged 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 the present disclosure, along the second direction, a plurality of the defining rings are provided, and the adjusting member extends along the second direction, wherein the second direction is the arranging direction of the fiber filaments.

[0011] In some exemplary embodiments of the present disclosure, in the first direction, the adjusting member is configured to allow the fiber filaments to bypass from above it, and along the direction in which the adjusting member rises, the defining ring is a polygon with a gradually increasing width dimension.

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

[0013] Another aspect of the present disclosure further provides a fiber filament production device, including the fiber filament broadening adjustment device according to any one of the above;

[0014] a broadening test device, along the conveying direction of the fiber filaments, the broadening test device is located at the upstream end of the fiber filament adjustment device;

[0015] a control device, electrically connected to the broadening test device and the fiber filament broadening adjustment device respectively.

[0016] Another aspect of the present disclosure further provides a broadening adjustment method, using the fiber filament production device described above to adjust the broadening, and the broadening adjustment method includes:

[0017] obtaining the broadening value of the fiber filaments before entering the fiber filament broadening adjustment device;

[0018] When the measured broadening value is greater than the first broadening value, controlling the fiber filament broadening adjustment device to drive the fiber filaments to move in the defining ring towards the position where the width dimension of the defining ring decreases;

[0019] When the measured broadening value is less than the second broadening value, controlling the fiber filament broadening adjustment device to drive the fiber filaments to move in the defining ring towards the position where the width dimension of the defining ring increases;

[0020] wherein the second broadening value is less than the first broadening value.

[0021] In some exemplary embodiments of the present disclosure, the adjusting member of the fiber filament broadening adjustment device is configured to allow the fiber filaments to bypass from above it, and along the direction in which the adjusting member rises, the defining ring is a polygon with a gradually increasing width dimension;

[0022] The broadening adjustment method includes:

[0023] When it is measured that the broadening value is greater than the first broadening value, control the adjusting member to descend, driving the fiber filament to move to a position where the width dimension within the limiting ring is less than the first broadening value;

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

[0025] In some exemplary embodiments of the present disclosure, the adjusting member of the fiber filament broadening adjusting device ascends or descends 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 descends;

[0026] The broadening adjusting method includes:

[0027] When it is measured that the broadening value is greater than the first broadening value, control the downward adjustment parameter value of the adjusting member to be the ratio of the difference between the broadening value and the first broadening value to the broadening value;

[0028] When it is measured that the broadening value is less than the second broadening value, control the upward adjustment parameter value of the adjusting member to be the ratio of the difference between the second broadening value and the broadening value to the broadening value.

[0029] In some exemplary embodiments of the present disclosure, the fiber filament production device further includes a broadening testing device located at the downstream end of the fiber filament adjusting device along the conveying direction of the fiber filament; along a direction parallel to the extending direction of the adjusting member, a plurality of limiting rings are provided for multiple bundles of the fiber filament to pass through,

[0030] The broadening adjusting method includes:

[0031] Obtain the broadening values of multiple bundles of the fiber filament before entering the fiber filament broadening adjusting device, calculate the width dispersion coefficient, and when the broadening dispersion value is greater than the first broadening dispersion value, send out an alarm signal; and / or

[0032] Obtain the adjusted broadening value of the fiber filament coming out of the fiber filament broadening adjusting device. When the adjusted broadening value is greater than the first broadening value or less than the second broadening value, it is judged as unqualified, and when the number of unqualified times is greater than or equal to the first preset number of times, send out an alarm signal.

[0033] Adopting the above-mentioned fiber filament broadening adjustment device, fiber filament production device and broadening adjustment method of the present disclosure has the following beneficial effects: The dimensions of the limiting ring in the first direction are different. The adjusting member drives the fiber filament to move relative to the limiting ring in the first direction, which can drive the fiber filament to be in positions with different width dimensions on the limiting ring. Both sides of the fiber filament also abut against the inner wall of the limiting ring, and the inner wall of the limiting ring can limit the broadening of the fiber filament. At different positions of the limiting ring, the broadening of the fiber filament is also different. Therefore, the present disclosure adjusts the broadening of the fiber filament by adjusting the relative positions of the limiting ring and the adjusting member. The adjustment of the broadening of the fiber filament is realized by using the different dimensions of the limiting ring, and its structure is simple, easy to implement and operate, and does not require complex devices and cumbersome steps.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Brief Description of the Drawings

[0035] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

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

[0037] Figure 2 It is a schematic diagram of a limiting ring shown according to an exemplary embodiment.

[0038] Figure 3 It is a schematic diagram of an adjusting member shown according to an exemplary embodiment.

[0039] Figure 4 It is a partially enlarged view of a limiting ring shown according to an exemplary embodiment.

[0040] Figure 5 It is a process diagram of fiber filament production shown according to an exemplary embodiment.

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

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

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

[0044] Figure 9 It is a relationship diagram of broadening mean value, hydraulic adjustment roller lifting and adjustment state shown according to an exemplary embodiment. Detailed implementation manners

[0045] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0046] If there are terms related to directional indications or positional relationships in the embodiments of the present disclosure (such as 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 motion conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, terms such as "first" and "second" in the embodiments of the present disclosure are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0047] Please refer to Figures 1 to 5 , Figure 1 which is a schematic diagram of a fiber filament broadening adjustment device, Figure 2 which is a schematic diagram of a limiting ring, Figure 3 which is a schematic diagram of an adjusting member, Figure 4 which is a partially enlarged view of the limiting ring (half of the limiting ring), Figure 5 and which is a process diagram of fiber filament production. The present disclosure provides a fiber filament broadening adjustment device a for adjusting the broadening of fiber filaments, including a limiting ring 100 and an adjusting member 200. The limiting ring 100 is used for the fiber filaments to pass through, and both sides of the fiber filaments in the broadening direction abut against the inner wall of the limiting ring 100. The width of the inner wall of the limiting ring 100 is the broadening dimension of the fiber filaments. Combining Figure 2 and Figure 4 , along the first direction x, the width dimension of the limiting ring 100 is different, where the first direction x is perpendicular to the plane where the fiber filaments are located. The adjusting member 200 is adjacent to the limiting ring 100, and the adjusting member 200 is used for the fiber filaments passing through the limiting ring 100 to bypass. It can be understood that the same bundle of fiber filaments passes through the limiting ring 100 and bypasses 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 filaments to move along the first direction x within the limiting ring 100.

[0048] Combining Figure 1, first, the dimensions of the limiting ring 100 along the first direction x are limited to be different. The adjusting member 200 drives the fiber filament to move relative to the limiting ring 100 in the first direction x, which can drive the fiber filament to be in positions with different width dimensions on the limiting ring 100. Both sides of the fiber filament also abut against the inner wall of the limiting ring 100, and the inner wall of the limiting ring 100 can limit the broadening of the fiber filament. At different positions of the limiting ring 100, the broadening of the fiber filament is also different. It should be noted that the relative movement between the adjusting member 200 and the limiting ring 100 can be a relative movement along the first direction x. For example, the limiting ring 100 is fixed and the adjusting member 200 moves along the first direction x, or the adjusting member 200 is fixed and the limiting ring 100 moves along the first direction x. In addition, the adjusting member 200 can also be set as a cylindrical shape with different diameters in the first direction x. Move the adjusting member 200 along the second direction y. According to the change of the size of the cylindrical shape, change the position of the fiber filament wound around the adjusting member 200 relative to the limiting ring 100 in the first direction x.

[0049] The present disclosure adjusts the broadening of the fiber filament by adjusting the relative positions of the limiting ring 100 and the adjusting member 200. The adjustment of the broadening of the fiber filament is realized by using the different dimensions of the limiting ring 100. Its structure is simple, easy to implement and operate, and does not require complex devices and cumbersome steps. Moreover, by reasonably changing the relative positions between the limiting ring 100 and the adjusting member 200, the broadening of the fiber filament can be more accurately controlled to meet the requirements of different scenarios and applications, and the flexibility and efficiency of production are improved.

[0050] In one embodiment, in combination with Figure 2 and Figure 3, the fiber filament broadening adjustment device a includes a fixing frame 300, and a limiting ring 100 is fixedly arranged on the fixing frame 300. The fixing frame 300 is used to ensure the stability and durability of the limiting ring 100. During the process of continuously adjusting the broadening of the fiber filament through the limiting ring 100, the position offset or deformation of the limiting ring 100 is reduced, further providing the accuracy of the fiber filament broadening adjustment. The adjusting member 200 can move up or down relative to the limiting ring 100 along the first direction x. That is, the position of the limiting ring 100 is fixed and the adjusting member 200 is movable. Since the width dimension of the limiting ring 100 along the first direction x is different, and at the same time the adjusting member 200 moves along the first direction x, the movement of the adjusting member 200 can directly affect the height of the fiber filament in the limiting ring 100 in the first direction x. There is a simple geometric relationship between the movement range of the adjusting member 200 and the height change of the fiber filament, which is equal or a simple trigonometric function relationship. By controlling the displacement amount of the adjusting member 200, the height change of the fiber filament in the limiting ring 100 can be directly calculated, and then the width dimension of the corresponding position of the limiting ring 100, that is, the broadening of the fiber filament, can be obtained. Therefore, in this embodiment, the corresponding relationship between the movement of the adjusting member 200 and the adjustment of the fiber filament broadening is simple and easy to calculate. Among them, the adjusting member 200 can be a hydraulic adjusting roller equipped with a hydraulic servo valve. The control system directly drives the displacement of the spool of the hydraulic servo valve, changes the flow rate and direction of the hydraulic oil, thereby driving the movement of the piston of the hydraulic cylinder and driving the hydraulic adjusting roller, that is, the adjusting member 200, to move up and down.

[0051] In one embodiment, in combination with Figure 2 , along the second direction y, a plurality of limiting rings 100 are provided, and the adjusting member 200 extends along the second direction y, where the second direction y is the arrangement direction of the fiber filaments. A plurality of limiting rings 100 are provided for multiple bundles of fiber filaments to pass through, and the adjusting member 200 also extends along the second direction y, so that the movement of the adjusting member 200 can simultaneously adjust the heights of multiple bundles of fiber filaments relative to the plurality of limiting rings 100, and further adjust the broadening of multiple bundles of fiber filaments simultaneously. This embodiment can realize the synchronous adjustment of the broadening of multiple bundles of fiber filaments, significantly improving the production efficiency and the consistency of product quality. This batch adjustment method is particularly suitable for large-scale production scenarios, can effectively reduce manual intervention, and improve the degree of automation of production.

[0052] In one embodiment, in combination with Figure 1 and Figure 2, in the first direction x, the adjusting member 200 is configured such that the fiber filaments can bypass it from above. Along the direction in which the adjusting member 200 rises, the limiting ring 100 is a polygon with a gradually increasing width dimension, such as a common trapezoid, whose two side edges are at a certain inclination angle, so that the width gradually increases from one end to the other; or a triangle, through a specific side length and angle design, to achieve an increasing width in a certain direction; or a semi - circle, whose arc contour naturally brings about a smooth change in the width dimension. On the one hand, the regular increase in the width dimension of this limiting ring 100 can facilitate the calculation of the widened dimension of the corresponding fiber filaments after moving in the limiting ring 100 after adjusting the height of the adjusting member 200 moving along the first direction x. Furthermore, it is convenient to design the adjustment logic, providing 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 widening of the fiber filaments adjusted by the limiting ring 100 gradually increases. On the contrary, when the adjusting member 200 descends along the first direction x, the widening of the fiber filaments decreases. First, this positive - correlation correspondence relationship reduces the error transmission in the intermediate links, making the entire adjustment process more stable and reliable. Second, when the surface of the adjusting member 200 is too smooth and the frictional force is too small, it is difficult for the fiber filaments to receive sufficient lateral force when passing through the adjusting member 200, and the widening of the fiber filaments will be restricted. In this embodiment, since the fiber filaments are wound around the adjusting member 200, when the adjusting member 200 rises along the first direction x, the adjusting member 200 tightens the fiber filaments, and the total frictional force generated by the contact surface between the fiber filaments and the adjusting member 200 will increase, and the widening of the fiber filaments will increase under the action of the frictional force. When the adjusting member 200 descends along the first direction x, the total frictional force between the fiber filaments and the adjusting member 200 will decrease, and the widening of the fiber filaments is less affected by the frictional force, and its widening will also decrease correspondingly. This embodiment can combine the influence of the frictional force on the fiber filaments and the restriction of the limiting ring 100 on the fiber filaments.

[0054] In one embodiment, referring to 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 descends. The vertex angle of an isosceles triangle is the included angle formed by two equal sides. The geometric structure of an isosceles triangle is simple, and the moving distance of the adjusting member 200 in the first direction x can directly calculate the corresponding widening adjustment size through trigonometric function relationships. Further, in combination with Figure 4 , the limiting ring 100 can be an isosceles right - angled triangle, Figure 4 which is half of an isosceles right - angled triangle.

[0055] Referring to Figure 1, the present disclosure also provides a fiber filament production device, including the fiber filament broadening adjustment device a according to any one of the above, as well as a broadening test device 400 and a control device (not shown in the figure). Along the conveying direction of the fiber filament, the broadening test device 400 is located at the upstream end of the fiber filament adjustment device, and is used to detect the broadening value of the fiber filament before broadening adjustment. The control device is electrically connected to the broadening test device 400 and the fiber filament broadening adjustment device a respectively. The control device is used to control the adjusting member 200 in the broadening adjustment device according to the broadening value measured by the broadening test device 400, and further adjust the broadening of the fiber filament. In addition, along the conveying direction of the fiber filament, a broadening test device 400 can also be provided downstream of the fiber filament adjustment device, which is used to detect whether the broadening of the adjusted fiber filament is qualified, and further feedback the broadening adjustment effect of the fiber filament broadening adjustment device a in real time according to this downstream broadening test device 400. The control device includes a computer and a DCS-based control system. Standard values are stored in the control device. The broadening data of the fiber filament measured by the broadening test device 400 is sent to the computer equipped with the DCS control system. The control device performs data processing and logical judgment on the fiber filament broadening detection data, and issues corresponding instructions to control the fiber filament broadening adjustment device a through judgment.

[0056] The present disclosure also provides a broadening adjustment method, which uses the above fiber filament production device to adjust the broadening. The broadening adjustment method includes: obtaining the broadening value of the fiber filament before entering the fiber filament broadening adjustment device a; when the measured broadening value is greater than the first broadening value, controlling the fiber filament broadening adjustment device a to drive the fiber filament to move within the limiting ring towards the position where the width dimension of the limiting ring decreases. When the measured broadening value is less than the second broadening value, controlling the fiber filament broadening adjustment device a to drive the fiber filament to move within the limiting ring towards the position where the width dimension of the limiting ring increases; where the second broadening value is less than the first broadening value. The first broadening value and the second broadening value define the qualified broadening of the fiber filament. When the broadening value exceeds the qualified range, by controlling the fiber filament broadening adjustment device a to drive the fiber filament to move in the corresponding direction within the limiting ring 100, the precise adjustment of the fiber filament broadening can be realized, ensuring that the broadening dimension of the fiber filament always meets the production requirements. Among them, the first broadening value and the second broadening value can be flexibly set according to actual production needs, so that this broadening adjustment method can adapt to the production of fiber filaments with different specifications and different uses, and has universality and adaptability.

[0057] In one embodiment, the adjusting member 200 of the fiber filament broadening adjusting device a rises or falls along the first direction x. The limiting ring 100 is an isosceles right triangle, and the apex angle of the limiting ring 100 faces the direction in which the adjusting member 200 falls in the first direction x. The broadening adjusting method includes: when the measured broadening value is greater than the first broadening value, controlling the downward adjustment parameter value of the adjusting member 200 to be the ratio of the difference between the broadening value and the first broadening value to the broadening value, and the percentage formula is (broadening value - first broadening value) * 100% / broadening value. When the measured broadening value is less than the second broadening value, controlling the upward adjustment parameter value of the adjusting member 200 to be the ratio of the difference between the second broadening value and the broadening value to the broadening value, and the percentage formula is (second broadening value - broadening value) * 100% / broadening value. Since the limiting ring 100 is an isosceles right triangle, the moving distance of the adjusting member 200 in the first direction x is equal to the change value of the broadening value. Therefore, the change ratio of the broadening 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 consumption of calculation time and calculation resources.

[0058] In one embodiment, refer to Figure 5 , the direction of the arrow in the figure is the conveying and running direction of the fiber filament. The fiber filament production device further includes a broadening test device 400 located at the downstream end of the fiber filament adjusting device along the conveying direction of the fiber filament. Along the direction parallel to the extending direction of the adjusting member 200, a plurality of limiting rings 100 are provided for multiple bundles of fiber filaments to pass through. Taking the T700 - 12K carbon fiber filament bundle as an example, the multiple bundles of fiber filaments in one area can be 95. Detection and adjustment are carried out simultaneously. For the entire fiber filament production process, the broadening test device 400 and the corresponding fiber filament broadening adjusting device a can be installed in multiple sub - areas of the process, such as the south, middle, and north three areas. Thus, the fiber filaments of an entire process can be adjusted more comprehensively. Among them, the fiber filament results measured by the broadening test device 400 obtained by the control device can be processed into an average value for calculation.

[0059] The broadening adjusting method includes: obtaining the broadening values of multiple bundles of fiber filaments before entering the fiber filament broadening adjusting device a and calculating the width coefficient of variation (CV). When the broadening discrete value is greater than the first broadening discrete value, it proves that the broadening values of the multiple bundles of fiber filaments vary too much and the broadening situation is uneven. At this time, machine adjustment may not achieve the ideal effect and is not suitable for unified machine adjustment. An alarm signal needs to be sent to remind the operator to pay attention. The alarm signal can be a continuous alarm sound emitted by the device, the warning light on the device flashing to display the alarm status, or the alarm information including the broadening discrete value, alarm level, etc. being displayed on the screen of the control device. When the broadening discrete value is less than or equal to the first broadening discrete value, it can be directly adjusted through the fiber filament broadening adjusting device a. Among them, the first discrete value is 10%.

[0060] The width expansion adjustment method includes: obtaining the adjusted width expansion value of the fiber filaments coming out of the fiber filament width expansion adjustment device a. When the adjusted width expansion value is greater than the first width expansion value or less than the second width expansion value, it is judged as unqualified. And when the number of unqualified times is greater than or equal to the first preset number of times, an alarm signal is sent. When the width expansion of the fiber filaments after passing through the width expansion adjustment device multiple times is still not between the appropriate first width expansion value and the second width expansion value, it indicates that there is a problem with the fiber filament width expansion adjustment device a and it cannot meet the production requirements. At this time, an alarm signal is sent to remind the operator to check and repair the equipment. The first preset number of times can be 3 times.

[0061] Reference Figures 6 to 9 , Figure 6 is a process control example Figure 1 , which is a flowchart for first judging whether the fiber filaments need to be adjusted. Figure 7 is a logical analysis classification diagram showing the relationship between the width expansion mean value, the width expansion discrete value (CV), and the adjustment state. Figure 8 and Figure 9 is a table obtained by testing and analyzing the fiber filaments with T700 - 12K carbon fiber tows as an example. Figure 8 is a process control example Figure 2 , which is a flowchart for adjusting the adjusting part according to the measured width expansion value when it is judged that the fiber filaments need to be adjusted. Figure 9 is a diagram showing the relationship between the width expansion mean value, the lifting of the hydraulic adjusting roller, and the adjustment state.

[0062] Specifically, the width expansion adjustment method can be summarized as using a width expansion testing device to test the average value and the width expansion discrete value of multiple bundles of fiber filaments in an area, combined with Figure 6 and Figure 8 , first judge whether it is necessary to use the fiber filament width expansion adjustment device a to adjust the width expansion of the fiber filaments. When the width expansion mean value is between 6.5 - 7.5, such as 6.5, 6.8, 7, 7.2, 7.5. It can be understood as between the first width expansion value and the second width expansion value mentioned above, and the width expansion discrete value of the fiber filaments is less than 5, then it is proved that the current width expansion of the fiber filaments is suitable for production, and the judgment result is that there is no need to adjust the width expansion (N), and the detection of the width expansion value continues. When the width expansion value is less than 6.5 or greater than 7.5, then it is necessary to adjust the current width expansion value of the fiber filaments to between 6.5 - 7.5, and the judgment result is that it is necessary to adjust the fiber filaments (Y).

[0063] Combined with Figure 7 and Figure 9, since the adjusting member 200 can be a hydraulic adjusting roller equipped with a hydraulic servo valve, the lifting adjusting member 200 is the lifting hydraulic adjusting roller. After determining that the fiber filaments need to be adjusted, according to the specific widening value of the fiber filaments, calculate the servo valve adjustment value of the corresponding adjusting member 200, and raise or lower the hydraulic adjusting roller to adjust the widening of the fiber filaments. Corresponding adjustment states Y1 - Y6. When the widening value is still unqualified after three consecutive adjustments, or the widening discrete value is greater than 10%, an alarm signal needs to be issued to remind the user, corresponding to the adjustment state Yn. Among them, Y1 - Y6 correspond respectively. Y1 corresponds to when the measured average widening value is between 5.0 - 5.5, the hydraulic adjusting roller is raised by 40%. Y2 corresponds to when the measured average widening value is between 5.5 - 6.0, the hydraulic adjusting roller is raised by 27%. Y3 corresponds to when the measured average widening value is between 6.0 - 6.5, the hydraulic adjusting roller is raised by 16.7%. Y4 corresponds to when the measured average widening value is between 7.5 - 8.0, the hydraulic adjusting roller is lowered by 12.5%. Y5 corresponds to when the measured average widening value is between 8.0 - 8.5, the hydraulic adjusting roller is lowered by 17.6%. Y6 corresponds to when the measured average widening value is between 8.5 - 9.0, the hydraulic adjusting roller is lowered by 22%.

[0064] In a specific embodiment, for example, the control device detects that the widening test device 400 obtains an average widening value of 6.2, and the widening of the fiber filaments is small. Through calculation, it is necessary to raise the adjusting member 200 by 16.7% to adjust the widening of the fiber filaments to the qualified range between 6.5 - 7.5. Another example is when the average widening value is 8.7 and the widening value is too large, it is necessary to lower the adjusting member by 22% to adjust the widening of the fiber filaments to between 6.5 - 7.5. Another example is that the control device detects that the widening discrete value measured by the widening test device 400 is greater than 10%, which indicates that the widening values of multiple bundles of fiber filaments currently vary greatly, and the fiber filament widening adjusting device a cannot make a unified adjustment, and an alarm signal needs to be issued to notify manual intervention. Among them, the unit of the widening value is millimeter.

[0065] After considering the specification and the practice disclosed herein, those skilled in the art will readily think of other embodiments of the present disclosure. The present disclosure aims to cover any variations, uses, or adaptive changes of the present disclosure, and these variations, uses, or adaptive changes follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

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

Claims

1. A fiber width adjustment device, characterized in that: Used to adjust the width of fiber filaments, including: A limiting ring, for allowing the fiber filament to pass through, with both sides of the fiber filament in the width direction abutting against the inner wall of the limiting ring, and the width of the limiting ring is different along a first direction, wherein the first direction is perpendicular to the plane where the fiber filament is located; An adjusting member is adjacent to the limiting ring, and is used for allowing the fiber filament passing through the limiting ring to bypass. The adjusting member and the limiting ring are relatively movable, and the adjusting member is used for driving the fiber filament to move along the first direction within the limiting ring.

2. The fiber width adjustment device according to claim 1, characterized in that: The fiber filament width adjustment device comprises a fixing frame, and the limiting ring is fixedly arranged on the fixing frame; The adjusting member can be raised or lowered relative to the limiting ring along the first direction.

3. The fiber width adjustment device according to claim 2, characterized in that: Along the second direction, a plurality of limiting rings are provided, and the adjusting member extends along the second direction, wherein the second direction is the arrangement direction of the fiber filaments.

4. The fiber width adjustment device according to claim 2, characterized in that: In the first direction, the adjusting member is configured to allow the fiber filament to pass over it, and along the direction in which the adjusting member rises, the limiting ring is a polygon with a gradually increasing width.

5. The fiber width adjustment device according to claim 4, characterized in that: The limiting ring is an isosceles triangle, and in the first direction, the vertex angle of the limiting ring faces the direction in which the adjusting member is lowered.

6. A fiber yarn production device, characterized in that: A fiber width adjustment device comprising the fiber width adjustment device according to any one of claims 1 to 5; A width testing device, located at an upstream end of the fiber adjusting device along the conveying direction of the fiber filament; The control device is electrically connected to the width testing device and the fiber width adjusting device respectively.

7. A method for adjusting the width, characterized in that: The fiber yarn production device according to claim 6 is used to adjust the width, and the width adjustment method comprises: Obtaining a width value of the fiber filament before entering the fiber filament width adjustment device; When the measured width expansion value is greater than the first width expansion value, the fiber filament width adjustment device is controlled to drive the fiber filament to move in the limiting ring toward a position where the width of the limiting ring is reduced; When the measured width expansion value is less than the second width expansion value, the fiber filament width expansion adjustment device is controlled to drive the fiber filament to move in the limiting ring toward a position where the width of the limiting ring increases; The second stretching value is smaller than the first stretching value.

8. The stretch adjustment method according to claim 7, characterized in that: The adjusting member of the fiber filament width adjustment device is configured to allow the fiber filament to pass over it, and along the direction in which the adjusting member rises, the limiting ring is a polygon with a gradually increasing width; The stretch adjustment method comprises: When the measured width expansion value is greater than the first width expansion value, the adjusting member is controlled to descend, so as to drive the fiber filament to move to a position in the limiting ring where the width dimension is smaller than the first width expansion value; When it is measured that the width expansion value is smaller than the second width expansion value, the adjusting member is controlled to rise, so as to drive the fiber filament to move to a position in the limiting ring where the width dimension is larger than the second width expansion value.

9. The stretch adjustment method according to claim 8, characterized in that: The adjusting member of the fiber filament width adjusting device is raised or lowered along the first direction, the limiting ring is an isosceles right triangle, and in the first direction, the vertex of the limiting ring faces the direction in which the adjusting member is lowered; The stretch adjustment method comprises: When the measured widening value is greater than the first widening value, the downward adjustment parameter value of the adjusting member is controlled to be the ratio of the difference between the widening value and the first widening value to the widening value; When the measured widening value is smaller than the second widening value, the upward adjustment parameter value of the adjusting member is controlled to be the ratio of the difference between the second widening value and the widening value to the widening value.

10. The stretch adjustment method according to claim 7, characterized in that: The fiber yarn production device further includes the width expansion testing device located at the downstream end of the fiber yarn adjusting device along the conveying direction of the fiber yarn; Along the direction parallel to the extending direction of the adjusting member, the limiting ring is provided with a plurality of rings for allowing a plurality of bundles of the fiber filaments to pass through. The stretch adjustment method comprises: Obtaining the width values ​​of the plurality of fiber bundles before entering the fiber width adjustment device, calculating the width discrete coefficient, and issuing an alarm signal when the width discrete value is greater than the first width discrete value; and / or The adjusted width value of the fiber yarn coming out of the fiber yarn width adjustment device is obtained. When the adjusted width value is greater than the first width value, or less than the second width value, it is judged to be unqualified, and when the number of unqualified times is greater than or equal to the first preset number, an alarm signal is issued.

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