Differential fiber doup leno device

Abstract

The utility model relates to the technical field of textile, in particular to a differential fiber doup leno device, which is characterized in that a base heald is used as a key component, and an elastic film covering the inner wall of a heald eye works cooperatively with an adjusting mechanism. When the device is used for weaving the leno fabric, the body warp yarns and the cross warp yarns penetrate through the heald eyes provided with the elastic films. The adjusting mechanism adjusts the actual spatial form and size of the heald eye by changing the bulging degree of the elastic film. For example, the diameter of superfine denier fiber is small, so that the bulging degree of the elastic film and the actual aperture of a heald eye can be reduced by adjusting the mechanism during weaving, the contact area of the elastic film and the fiber is increased, and the concentration of friction stress is avoided. And for high-elasticity fibers such as lyocell fibers, the bulging degree of the elastic film can be properly reduced, a certain buffer space is provided when the fibers rebound by utilizing the elastic characteristic of the elastic film, and the repeated friction with the inner wall of a heald eye is reduced. The method can be widely applied to the textile technical field.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and more specifically, to a device for differentiated fiber heddle yarn. Background Technology

[0002] Gauze fabrics utilize a heald system to twist warp yarns, creating a breathable perforated structure. The core components include the heald frame and base heddles mounted on it. The base heddles have heddle eyes to constrain the path of the ground warp and twill warp, ensuring uniform warp tension distribution and the formation of regular perforations during weaving. However, with the widespread use of ultra-fine denier fibers (≤1D), irregularly shaped cross-section fibers, and highly elastic fibers in high-end textiles, traditional base heddle systems have revealed the following technical bottlenecks:

[0003] Traditional heald eyelets are made of metal or hard plastic with a fixed aperture structure. When processing ultra-fine denier fibers, the contact area is small and the frictional stress is concentrated, resulting in a fiber breakage rate of more than 8%. High elastic fibers, such as lyocell, are prone to repeated friction with the inner wall of the heald eyelet due to their resilience, causing hair growth and yarn damage.

[0004] Existing devices rely on mechanical heald frame displacement to adjust tension, which cannot respond in real time to the differences in elastic modulus of different fibers. For example, the modulus of ultrafine denier polyester is 8-10 GPa, while that of lyocell is 12-16 GPa. The tension fluctuations caused by the different properties of these two fibers will result in a yarn hole size variation coefficient (CV) value greater than 15%. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model proposes a differentiated fiber heddle yarn device.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A differentiated fiber heddle yarn device includes a base heddle with heddle eyes, the inner wall of the heddle eyes being covered with an elastic film, and an adjustment mechanism for controlling the degree of bulging of the elastic film being provided inside the base heddle.

[0008] As a key component, the heddle's inner wall is covered by an elastic membrane, which works in conjunction with the adjustment mechanism. When using this device to weave nylon fabric, the ground warp and skein warp yarns pass through the heddle eyes equipped with the elastic membrane. The adjustment mechanism adjusts the actual spatial shape and size of the heddle eyes by changing the degree of bulging of the elastic membrane.

[0009] For example, for ultrafine denier fibers, due to their small diameter, the elastic membrane can be bulged during weaving by adjusting the mechanism to reduce the actual aperture of the heddle, thereby increasing the contact area between the elastic membrane and the fiber and avoiding the concentration of frictional stress. For highly elastic fibers, such as lyocell fibers, the bulging degree of the elastic membrane can be appropriately reduced. Utilizing its elastic properties, a certain buffer space is provided when the fiber rebounds, reducing repeated friction with the inner wall of the heddle.

[0010] Preferably, the adjustment mechanism includes a cavity disposed on the inner wall of the heald eye, an elastic membrane covering the opening of the cavity, and a pressure control system for adjusting the air pressure inside the cavity is provided on the heald base.

[0011] The air pressure control system can precisely regulate the air pressure inside the cavity, thereby accurately controlling the degree of bulging of the elastic film. This allows the device to perform more precise adjustments to the heddle aperture and friction for the subtle characteristics of different types of differentiated fibers. Compared to traditional heddles with fixed apertures, this greatly improves the adaptability to various differentiated fibers, further reduces damage to various fibers during the weaving process, and improves the stability of product quality.

[0012] Preferably, the air pressure control system includes a flexible tube that passes through the base and connects to the cavity, with a bidirectional air pump connected to the other end of the tube, and an air pressure sensor is also installed inside the cavity.

[0013] The bidirectional air pump and hose work together to achieve bidirectional regulation of the air pressure within the cavity. To increase the expansion of the elastic diaphragm, the bidirectional air pump inflates the cavity, raising the air pressure and causing the diaphragm to bulge outwards. Conversely, to decrease the expansion, the bidirectional air pump deflates the cavity, lowering the air pressure and causing the diaphragm to retract. A pressure sensor within the cavity monitors the air pressure in real time and feeds the data back to the bidirectional air pump's control system.

[0014] Preferably, it also includes a heald frame, with a heald lug fixed to the end of the base heald, and two parallel limiting plates fixed to the side wall of the heald frame. An installation channel for the heald lug to pass through is formed between the two limiting plates and the side wall of the heald frame. One of the limiting plates has a first threaded hole and also includes a first bolt. The first bolt can pass through the first threaded hole and abut against the heald lug, thereby pressing the heald lug against the other limiting plate.

[0015] During installation, the heddle lug of the base helium is inserted into the installation channel formed by the two limiting plates and the side wall of the helium frame. Then, the first bolt is rotated to pass through the first threaded hole on the limiting plate. As the first bolt is screwed in, its end gradually abuts against the heldle lug, continuously applying pressure until the lug is firmly pressed against the other limiting plate. This connection method ensures a stable installation of the base helium on the helium frame.

[0016] Preferably, the heddle has a connecting cavity that communicates with the cavity, and one end of the flexible tube extends into the connecting cavity.

[0017] When the heel frame undergoes various complex movements, if the flexible tube is directly exposed, it is prone to friction and collision with surrounding components, leading to damage. Now, however, the flexible tube is inserted into the connecting cavity and well-enclosed within the heel lug, preventing direct contact with external components. This ensures that regardless of the heel's movement, the flexible tube maintains a relatively stable position within the connecting cavity, preventing twisting, excessive bending, or damage due to external interference. This ensures smooth air pressure transmission and guarantees the air pressure control system can continuously and stably control the degree of elastic diaphragm inflation.

[0018] Preferably, a rubber ring is fitted onto the flexible tube; when the flexible tube is inserted into the connecting cavity, the rubber ring extends into the connecting cavity and abuts against the inner wall of the connecting cavity.

[0019] The rubber ring has good elasticity. Under the action of its own elastic force, it will tightly fit the inner wall of the connecting cavity, thus forming a sealing structure.

[0020] During the operation of the air pressure control system, whether the bidirectional air pump is filling or evacuating the base cavity, the sealing structure formed by the rubber ring can ensure that the gas will not leak from the connection between the hose and the connecting cavity.

[0021] Preferably, an installation ring is also fixed on the outer wall of the hose, and a second threaded hole is opened on the upper end face of the heddle. The heddle also includes a second bolt, which passes through the installation ring and engages with the second threaded hole to fix the installation ring on the heddle.

[0022] The tightening action of the second bolt and the second threaded hole ensures that the mounting ring will not easily shift, thus keeping the hose firmly connected to the heald ear. Even during long-term, high-intensity weaving operations, when faced with external forces such as vibration and tension, the connection between the hose and the heald ear remains stable, ensuring the normal operation of the air pressure control system, continuously and accurately controlling the degree of elastic film bulging, and achieving stable adjustment of warp tension. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the automatic sampling device in the embodiment;

[0024] Figure 2 This is a schematic diagram of the mounting base and its components in the embodiment;

[0025] Figure 3 This is a schematic diagram of the mounting base in the embodiment;

[0026] Figure 4 This is a schematic diagram of the mounting base in cross-section in the embodiment;

[0027] Figure 5 This is a schematic diagram of the absorption tube structure in the embodiment;

[0028] The names of the parts referred to by the numbers in the attached diagram are as follows:

[0029] 110. Heald base; 1101. Heald eye; 1102. Cavity; 120. Elastic membrane; 130. Hose; 1301. Two-way air pump; 140. Heald lug; 1401. Connecting cavity; 1402. Second threaded hole; 1403. Second bolt; 150. Heald frame; 1501. Limiting plate; 1502. First threaded hole; 1503. First bolt; 160. Rubber ring; 170. Mounting ring. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0031] Example

[0032] like Figures 1-5 As shown, the differentiated fiber heddle yarn device in this embodiment mainly consists of a base heddle 110, a heddle frame 150, and an air pressure control system.

[0033] The base helium 110 is one of the core components of the device. It has a helium eye 1101, and the inner wall of the helium eye 1101 is covered with an elastic film 120. A cavity 1102 is provided in the inner wall of the helium eye 1101, and the elastic film 120 covers the upper opening of the cavity 1102.

[0034] The air pressure control system includes a flexible hose 130 that passes through the base 110 and connects to the cavity 1102. The other end of the hose 130 is connected to a bidirectional air pump 1301, and a pressure sensor is installed inside the cavity 1102. The pressure sensor detects the air pressure within the cavity. The elastic diaphragm 120 corresponding to each type of fiber bulges to a different degree, resulting in different air pressures within the cavity 1102. The pressure sensor can feed back the air pressure of the cavity 1102 to the bidirectional air pump 1301, facilitating real-time adjustment by the bidirectional air pump 1301. The pressure sensor can be a capacitive pressure sensor, which is existing technology and will not be discussed further here; it is not shown in the figure.

[0035] A rubber ring 160 is fitted onto the hose 130, and an installation ring 170 is fixed to the outer wall of the hose 130.

[0036] Two parallel limiting plates 1501 are fixed to the side wall of the heald frame 150, forming an installation channel between the two limiting plates 1501 and the side wall of the heald frame 150. The heald lug 140 fixed to the end of the base heald 110 can pass through this installation channel. One of the limiting plates 1501 has a first threaded hole 1502. A first bolt 1503 passes through the threaded hole and abuts against the heald lug 140, pressing the heald lug 140 against the other limiting plate 1501, thus achieving a stable connection between the base heald 110 and the heald frame 150. The heald lug 140 has a connecting cavity 1401. One end of the flexible hose 130 extends into the connecting cavity 1401. When the flexible hose 130 is inserted into the connecting cavity 1401, the rubber ring 160 also extends in and abuts against the inner wall of the connecting cavity 1401.

[0037] In addition, a second threaded hole 1402 is provided on the upper end face of the heddle 140. The mounting ring 170 is fixed on the heddle 140 by the second bolt 1403 engaging with the threaded hole, which further stabilizes the connection between the hose 130 and the heddle 140.

[0038] The operating principle of the differentiated fiber heddle yarn device in this embodiment is as follows:

[0039] When weaving leno fabric, the ground warp and skein warp yarns pass through the heald eyelets 1101, which are equipped with elastic membranes 120. The air pressure control system uses a bidirectional air pump 1301 to bidirectionally regulate the air pressure in the cavity 1102 within the base heald 110. When the bidirectional air pump 1301 fills the cavity 1102 with air, the air pressure increases, and the elastic membrane 120 bulges outward under the pressure, increasing the actual aperture of the heald eyelets 1101; conversely, when the bidirectional air pump 1301 draws air from the cavity 1102, the air pressure decreases, the elastic membrane 120 retracts, and the actual aperture of the heald eyelets 1101 decreases.

[0040] During this process, the air pressure sensor inside cavity 1102 monitors the air pressure value in real time and feeds the data back to the control system of bidirectional air pump 1301. The control system compares the feedback air pressure data with the preset value. If the actual air pressure is higher or lower than the preset value, the bidirectional air pump 1301 performs air extraction or inflation accordingly to precisely adjust the air pressure inside cavity 1102, thereby precisely controlling the degree of inflation of elastic diaphragm 120.

[0041] For example, when weaving microfiber, due to its small diameter, to avoid frictional stress concentration, the bidirectional air pump 1301 draws air to reduce the bulging degree of the elastic film 120, thereby reducing the actual aperture of the heddle eye 1101 and increasing the contact area between the elastic film 120 and the fiber. Conversely, when weaving highly elastic fibers, such as lyocell fibers, the bidirectional air pump 1301 appropriately inflates the elastic film 120 to increase its bulging degree. Utilizing its elastic properties, this provides a buffer space when the fiber rebounds, reducing repeated friction with the inner wall of the heddle eye 1101.

[0042] The base heddle 110 is connected to the heddle frame 150 via heddle lugs 140. During installation, the heddle lugs 140 are inserted into the installation channel formed by the limiting plate 1501 and the side wall of the heddle frame 150. The first bolt 1503 is then rotated so that its end abuts against the heddle lug 140 and is pressed against the other limiting plate 1501, thus achieving a stable installation of the base heddle 110 on the heddle frame 150. During loom operation, the base heddle 110 moves together with the heddle frame 150.

[0043] At this point, the flexible hose 130 connected to the base heald 110, extending into the connecting cavity 1401 within the heald ear 140, avoids friction and collision with external components, ensuring smooth air pressure transmission. Simultaneously, the rubber ring 160 on the flexible hose 130 abuts against the inner wall within the connecting cavity 1401, forming a sealing structure to prevent gas leakage. The mounting ring 170 is fixed to the heald ear 140 by the second bolt 1403, further ensuring a secure connection of the flexible hose 130 to the heald ear 140, guaranteeing stable operation of the air pressure control system, continuously and precisely controlling the degree of bulging of the elastic film 120, achieving stable adjustment of warp tension, and thus forming a regular yarn hole structure.

[0044] The above settings can precisely adjust the pore size and friction of the heddle 1101 according to the characteristics of different differentiated fibers, such as microfiber and high elastic fiber, which greatly improves the adaptability to various differentiated fibers, effectively reduces the damage of various fibers in the weaving process, improves the stability of product quality, and reduces fabric defects.

[0045] The heald 110 and heald frame 150 are connected by heald lugs 140, limiting plates 1501, and first bolts 1503. This connection facilitates installation and disassembly while ensuring the stability of the heald 110 during loom operation, thus guaranteeing stable weaving. Simultaneously, the hose 130 and heald lugs 140 achieve a secure connection and good seal through a connecting cavity 1401, rubber ring 160, mounting ring 170, and second bolts 1403. This not only protects the hose 130 and extends its service life but also improves the reliability of the air pressure control system, reduces malfunctions caused by connection problems, and ensures continuous production.

[0046] In summary, the above are merely preferred embodiments of this embodiment. All equivalent changes and modifications made in accordance with the scope of the patent application of this embodiment shall fall within the scope of the patent of this embodiment.

Claims

1. A differentiated fiber heddle yarn device, comprising a base heddle (110), characterized in that: The base helium (110) has a helium eye (1101), the inner wall of the helium eye (1101) is covered with an elastic film (120), and the base helium (110) is provided with an adjustment mechanism for controlling the degree of bulging of the elastic film (120).

2. The differentiated fiber heddle yarn device according to claim 1, characterized in that: The adjustment mechanism includes a cavity (1102) disposed on the inner wall of the heddle (1101), the elastic film (120) covering the opening of the cavity (1102), and a pressure control system for adjusting the air pressure inside the cavity (1102) provided on the base heddle (110).

3. The differentiated fiber heddle yarn device according to claim 2, characterized in that: The air pressure control system includes a hose (130) that passes through the base (110) and connects to the cavity (1102). The other end of the hose (130) is connected to a bidirectional air pump (1301). An air pressure sensor is also provided in the cavity (1102).

4. The differentiated fiber heddle yarn device according to claim 3, characterized in that: It also includes a heald frame (150), with a heald lug (140) fixed to the end of the base heald (110). Two parallel limiting plates (1501) are fixed on the side wall of the heald frame (150), forming an installation channel for the heald lug (140) to pass through between the two limiting plates (1501) and the side wall of the heald frame (150). One of the limiting plates (1501) has a first threaded hole (1502) and also includes a first bolt (1503). The first bolt (1503) can pass through the first threaded hole (1502) and abut against the heald lug (140), thereby pressing the heald lug (140) against the other limiting plate (1501).

5. The differentiated fiber heddle yarn device according to claim 4, characterized in that: The earpiece (140) is provided with a connecting cavity (1401) that communicates with the cavity (1102), and one end of the flexible tube (130) extends into the connecting cavity (1401).

6. The differentiated fiber heddle yarn device according to claim 5, characterized in that: A rubber ring (160) is fitted onto the hose (130); when the hose (130) is inserted into the connecting cavity (1401), the rubber ring (160) extends into the connecting cavity (1401) and abuts against the inner wall of the connecting cavity (1401).

7. The differentiated fiber heddle yarn device according to claim 5, characterized in that: An installation ring (170) is also fixed on the outer wall of the hose (130). A second threaded hole (1402) is opened on the upper end face of the heddle (140), and a second bolt (1403) is also included. The second bolt (1403) passes through the installation ring (170) and engages with the second threaded hole (1402) to fix the installation ring (170) on the heddle (140).

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