Active yarn feeding device and creel module thereof

Abstract

The application discloses an active yarn drum yarn feeding device and a creel module thereof. A yarn drum driving motor drives the yarn drum to rotate through a transmission assembly. After the yarn in the yarn drum is discharged, the tension of the yarn is controlled through a swing rod assembly, and then the yarn is discharged through a fixed thread rod. The angle of the lightweight thread swing rod is fed back through an angle feedback sensor. The tension change of the yarn will pull the lightweight thread swing rod to different angles. The angle change of the lightweight thread swing rod is detected to control the yarn drum driving motor to rotate the yarn drum. The application can control the tension of each yarn during the warp feeding process, reduce the tension fluctuation of the yarn shedding and opening, and realize high-quality weaving of fabrics. The creel module comprises a creel profile and a warp yarn distribution plate. A plurality of groups of active yarn drum yarn feeding devices are modularly arranged on the creel profile. A plurality of groups of warp yarn distribution rods are arranged on the warp yarn distribution plate. After each group of yarn is discharged, the yarn is distributed through the corresponding warp yarn distribution rod, so that the yarn in each layer is clearly distributed and does not interfere with each other.

Description

Technical Field

[0001] This invention relates to the field of textile machinery technology, and in particular to an active yarn bobbin feeding device and its yarn frame module. Background Technology

[0002] With the continuous development of materials science and textile technology, the application of advanced woven composite materials is becoming increasingly widespread, and the weaving requirements are also becoming increasingly stringent. To achieve the weaving of special composite materials with varying warp yarn consumption, it is necessary to individually control the tension of each yarn. Existing technologies, such as patent 201010153813.6, control the release of yarn tension by adjusting the force of the tension spring pressing the yarn bobbin. However, during the yarn weaving process, as the yarn bobbin diameter changes as the yarn decreases, it is impossible to maintain constant yarn tension, affecting the quality of the fabric. Furthermore, for large shed weaving methods, there will be excess yarn length when the shed opens and closes, resulting in large fluctuations in yarn tension, which cannot meet the requirements for high-quality fabric weaving. Summary of the Invention

[0003] The purpose of this invention is to provide an active yarn bobbin feeding device and its yarn frame module. The yarn bobbin feeding device can control the tension of each yarn during the warp feeding process, reduce the fluctuation of yarn tension at the opening and closing points, and achieve high-quality fabric weaving. The yarn frame module is modularly equipped with multiple sets of active yarn bobbin feeding devices on the yarn frame profile, and multiple sets of warp yarn dividing rods are installed on the warp yarn dividing plate. After each set of yarns exits, it passes through the corresponding warp yarn dividing rod for layering, so that each layer of yarn is clearly layered and does not interfere with each other.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] An active yarn bobbin feeding device includes a yarn bobbin and a yarn bobbin drive motor. The yarn bobbin drive motor drives the yarn bobbin core on the yarn bobbin to rotate through a transmission assembly. After the yarn in the yarn bobbin is discharged, the tension of the yarn is controlled by a swing rod assembly and then discharged through a fixed thread guide rod.

[0006] Preferably, the yarn bobbin includes a yarn bobbin shaft and a yarn bobbin core rotatably sleeved on the front end of the yarn bobbin shaft, the rear part of the yarn bobbin core being connected to a transmission assembly; the rocker arm assembly includes a lightweight rocker arm connecting block connected to the rear end of the yarn bobbin shaft via a connecting block bearing, one end of the lightweight rocker arm connecting block being equipped with a lightweight thread guide rocker arm, and a swing slot being provided on the base plate along the movement trajectory of the lightweight thread guide rocker arm, through which the lightweight thread guide rocker arm passes; the fixed thread guide rod is fixed to the base plate.

[0007] Preferably, the transmission assembly is a gear structure or a synchronous belt structure. The gear structure includes a driving gear and a driven gear. The yarn bobbin drive motor is fixed on the base plate, and the output shaft of the yarn bobbin drive motor passes through the base plate and is connected to the driving gear. The driven gear is connected to or integrally formed on the rear part of the yarn bobbin core, and the driving gear and the driven gear mesh with each other. Alternatively, the synchronous belt structure includes a driving pulley, a driven pulley, and a synchronous belt. The driving pulley is connected to the output shaft of the yarn bobbin drive motor, and the driven pulley is connected to or integrally formed on the rear part of the yarn bobbin core. The driving pulley and the driven pulley are connected by a synchronous belt to achieve synchronous movement.

[0008] Preferably, the yarn core has at least two sets of annular grooves on the circumferential direction, and multiple sets of bulging springs are fixedly and tightly arranged between the sidewalls of each set of annular grooves. The multiple sets of bulging springs are evenly arranged on the circumferential direction of the yarn core, and the maximum outer diameter formed by the bulging part of the multiple sets of bulging springs is greater than the outer diameter of the yarn core.

[0009] Preferably, the swing angle of the lightweight pendulum is fed back by an angle feedback sensor, which is an angle encoder or a potentiometer.

[0010] Preferably, a rocker arm angle gear is fixed on the connecting block bearing, and an angle feedback gear is installed on the base plate, with the angle feedback gear meshing with the rocker arm angle gear, and the angle feedback gear is connected to an angle feedback sensor.

[0011] Preferably, changes in yarn tension will pull the lightweight yarn guide lever to different angles, and the rotation of the yarn bobbin drive motor can be controlled by detecting changes in the angle of the lightweight yarn guide lever.

[0012] Preferably, the swing groove is provided with four range boundary values ​​a, b, c and d. The four range boundary values ​​a, b, c and d divide the swing rod angle into three regions, namely region A, region B and region C. The swing rod angle formed by the yarn passing through the lightweight yarn guide swing rod is different in different regions.

[0013] Preferably, when the lightweight yarn guide lever is in area A, the angle feedback sensor indicates that the lever angle is less than the normal range, and the yarn tension is less than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the reverse direction to tighten the yarn tension. When the lightweight yarn guide lever is in area B, the angle feedback sensor indicates that the lever angle is within the normal range, and the yarn tension has been adjusted to a certain extent by the swing of the lightweight yarn guide lever. In this case, the yarn bobbin drive motor does not need to rotate. When the lightweight yarn guide lever is in area C, the angle feedback sensor indicates that the lever angle is greater than the normal range, and the yarn tension is greater than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the forward direction to release the yarn proportionally.

[0014] When the lightweight pendulum rod exceeds the boundary value 'a' or 'd', it is in an abnormal tension state and requires alarm and shutdown.

[0015] As a preferred option, for abnormal tension situations where the lightweight pendulum rod cannot meet the tension requirements, a counterweight can be added to the lightweight pendulum rod or an external force can be applied to the lightweight pendulum rod connecting block. Steel balls can be added inside the lightweight pendulum rod or a pull-down spring can be installed on the lightweight pendulum rod connecting block to enable the lightweight pendulum rod to meet the large tension requirements.

[0016] A yarn frame module employing an active yarn bobbin feeding device is disclosed. The yarn frame module includes a profile construction body, which comprises two sets of yarn frame profiles, front and rear. Each set of yarn frame profiles consists of multiple sets of transverse beams and multiple sets of longitudinal beams. The longitudinal beams are arranged horizontally side by side, and the transverse beams are arranged vertically side by side. Multiple sets of transverse beams are symmetrically installed on the front and rear sides of the longitudinal beams. From top to bottom, multiple sets of active yarn bobbin feeding devices are installed horizontally side by side between every two sets of transverse beams. A set of warp yarn dividing plates is installed at the front end of the yarn frame profiles and in front of each row of active yarn bobbin feeding devices. Multiple sets of warp yarn dividing rods are installed on the warp yarn dividing plates, and the warp yarn dividing rods are arranged obliquely on the warp yarn dividing plates. Each set of warp yarn dividing rods corresponds to one set of active yarn bobbin feeding devices. After the yarn from each set of active yarn bobbin feeding devices exits, it passes through the corresponding warp yarn dividing rods for layering, making each layer of yarn clear and non-interfering.

[0017] The beneficial effects of this invention are:

[0018] After the yarn exits the yarn bobbin in this invention, the yarn tension is controlled by a swing arm assembly, and then the yarn exits through a fixed guide rod. The tension changes in the yarn pull the lightweight guide rod to different angles. By detecting the angle changes of the lightweight guide rod, the rotation of the yarn bobbin drive motor is controlled to rotate the yarn bobbin. This active yarn bobbin feeding device can control the tension of each yarn during the warp feeding process, reducing tension fluctuations at the yarn opening and closing points, and achieving high-quality fabric weaving.

[0019] The yarn frame module of the present invention includes a profile construction body, which includes two sets of yarn frame profiles, front and rear. Each set of yarn frame profiles consists of multiple sets of transverse beams and multiple sets of longitudinal beams. The multiple sets of longitudinal beams are arranged side by side in the transverse direction, and the multiple sets of transverse beams are arranged side by side in the longitudinal direction. Multiple sets of transverse beams are symmetrically installed on the front and rear sides of the multiple sets of longitudinal beams. Multiple sets of active yarn bobbin feeding devices are installed side by side in the transverse direction between every two sets of transverse beams from top to bottom. A set of warp yarn dividing plates is installed on the right end of the yarn frame profile and on the right side of each row of active yarn bobbin feeding devices. Multiple sets of warp yarn dividing rods are installed on the warp yarn dividing plates, and the multiple sets of warp yarn dividing rods are arranged obliquely on the warp yarn dividing plates. Each set of warp yarn dividing rods corresponds to a set of active yarn bobbin feeding devices. After the yarn of each set of active yarn bobbin feeding devices exits, it passes through the corresponding warp yarn dividing rods for layering, so that each layer of yarn is clearly layered and does not interfere with each other. Attached Figure Description

[0020] Figure 1 This is one of the structural schematic diagrams of the active yarn bobbin feeding device of the present invention;

[0021] Figure 2 This is a second schematic diagram of the active yarn bobbin feeding device of the present invention;

[0022] Figure 3 This is a front view of the active yarn feeding device of the present invention;

[0023] Figure 4 This is a top view of the active yarn feeding device of the present invention;

[0024] Figure 5 This is a cross-sectional view of the active yarn bobbin feeding device of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the three regions on the swing slot of the present invention;

[0026] Figure 7 This is a schematic diagram showing the state of the yarn in region B of the lightweight yarn guide lever of the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the yarn frame module of the present invention;

[0028] Figure 9 This is a partial schematic diagram of the yarn frame module of the present invention;

[0029] Figure 10 This is a schematic diagram of the warp yarn separating plate on the yarn frame module of the present invention. Detailed Implementation

[0030] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0031] Furthermore, the terms "vertical," "horizontal," "top," "bottom," "front," "back," "upper," "lower," "inner," and "outer" mentioned in the embodiments of the present invention indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown, or the orientations or positional relationships in which the product is usually placed during use, are only for the purpose of facilitating the description of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Example

[0034] As attached Figures 1-10 As shown, an active yarn feeding device includes a yarn bobbin and a yarn bobbin drive motor 1. The yarn bobbin drive motor 1 drives the yarn bobbin core on the yarn bobbin to rotate. After the yarn 2 in the yarn bobbin is out, the tension of the yarn is controlled by the swing rod assembly, and then the yarn is out through the fixed thread guide rod 3. The fixed thread guide rod 3 is fixed on the base plate.

[0035] The yarn bobbin includes a yarn bobbin shaft 4 and a yarn bobbin core 5 rotatably sleeved on the front end of the yarn bobbin shaft 4 via a bearing 17. The rear part of the yarn bobbin core 5 is connected to a transmission assembly. The yarn bobbin drive motor 1 drives the yarn bobbin core 5 to rotate around the yarn bobbin shaft 4 via the transmission assembly.

[0036] The transmission component is a gear structure or a synchronous belt structure. In this embodiment, a gear structure is adopted, which includes a driving gear 6 and a driven gear 7. The yarn bobbin drive motor 1 is fixed on the base plate 8. The output shaft of the yarn bobbin drive motor 1 passes through the base plate 8 and is connected to the driving gear 6. The driven gear 7 is connected to or integrally formed on the rear part of the yarn bobbin core 5. The driving gear 6 and the driven gear 7 mesh with each other. Alternatively, the synchronous belt structure includes a driving pulley, a driven pulley, and a synchronous belt. The driving pulley is connected to the output shaft of the yarn bobbin drive motor. The driven pulley is connected to or integrally formed on the rear part of the yarn bobbin core. The driving pulley and the driven pulley are connected by a synchronous belt to achieve synchronous movement.

[0037] The yarn core 5 has at least two sets of annular grooves 501 on the circumferential direction. Multiple sets of bulging springs 9 are fixedly and tightly arranged between the sidewalls of each set of annular grooves 501. The multiple sets of bulging springs are evenly arranged on the circumferential direction of the yarn core, and the maximum outer diameter formed by the bulging part of the multiple sets of bulging springs is greater than the outer diameter of the yarn core.

[0038] The rocker arm assembly includes a lightweight rocker arm connecting block 11 connected to the rear end of the yarn bobbin 4 via a connecting block bearing 10. The yarn bobbin 4 has a step, and a base plate has a base plate mounting hole. The small diameter section of the step of the yarn bobbin 4 passes through the base plate mounting hole, and the large diameter section of the step of the yarn bobbin 4 is installed at the position of the base plate mounting hole. The connecting block bearing 10 is sleeved on the small diameter section of the step of the yarn bobbin 4, and the lightweight rocker arm connecting block 11 is sleeved on the connecting block bearing 10. A lightweight thread guide rocker arm 12 is installed at one end of the lightweight rocker arm connecting block 11. A swing groove 13 is provided on the base plate 8 and located on the movement trajectory of the lightweight thread guide rocker arm 12. The lightweight thread guide rocker arm passes through the swing groove and extends to the front end.

[0039] The swing angle of the lightweight pendulum 12 is fed back by the angle feedback sensor 14, which is an angle encoder or a potentiometer.

[0040] A rocker arm angle gear 15 is fixed on the connecting block bearing 10, and an angle feedback gear 16 is installed on the base plate 8. The angle feedback gear 16 meshes with the rocker arm angle gear 15, and the angle feedback gear 16 is connected to the angle feedback sensor 14.

[0041] Changes in yarn tension will pull the lightweight yarn guide lever to different angles. By detecting changes in the angle of the lightweight yarn guide lever, the rotation of the yarn bobbin drive motor can be controlled to rotate the yarn bobbin.

[0042] like Figure 6 and Figure 7 As shown, the swing groove has four range boundary values: a, b, c, and d. These four range boundary values ​​divide the swing rod angle into three regions: region A, region B, and region C. The swing rod angle formed by the yarn passing through the lightweight yarn guide swing rod is different in different regions.

[0043] When the lightweight yarn guide lever is in area A, the angle feedback sensor indicates that the lever angle is less than the normal range, and the yarn tension is also less than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the reverse direction to tighten the yarn tension. When the lightweight yarn guide lever is in area B, the angle feedback sensor indicates that the lever angle is within the normal range, and the yarn tension has already been adjusted by the swing of the lightweight yarn guide lever. In this case, the yarn bobbin drive motor does not need to rotate. When the lightweight yarn guide lever is in area C, the angle feedback sensor indicates that the lever angle is greater than the normal range, and the yarn tension is also greater than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the forward direction to release the yarn proportionally.

[0044] When the lightweight pendulum rod exceeds the boundary value 'a' or 'd', it is in an abnormal tension state and requires alarm and shutdown.

[0045] For abnormal tension situations where the tension is too high, the lightweight pendulum rod cannot meet the tension requirements. In such cases, a counterweight can be added to the lightweight pendulum rod, or an external force can be applied to the lightweight pendulum rod connecting block. Steel balls can be added inside the lightweight pendulum rod, or a pull-down spring can be installed on the lightweight pendulum rod connecting block to enable the lightweight pendulum rod to meet the high tension requirements.

[0046] like Figures 8-10 As shown, a yarn frame module employing an active yarn bobbin feeding device is disclosed. The yarn frame module includes a profile structure body, which comprises two sets of yarn frame profiles 100 and 200, respectively, which are supported and fixed together by a support beam 300. Each set of yarn frame profiles consists of multiple sets of transverse beams 101 and multiple sets of longitudinal beams 102. The multiple sets of longitudinal beams 102 are arranged side by side in the transverse direction, and the multiple sets of transverse beams 101 are arranged side by side in the longitudinal direction. Multiple sets of transverse beams 101 are symmetrically installed on the front and rear sides of the multiple sets of longitudinal beams 102. From top to bottom, multiple sets of active yarn bobbin feeding devices are installed side by side in the transverse direction between every two sets of transverse beams. Therefore, at the same height position, the longitudinal beams 102... Multiple sets of active yarn bobbin feeding devices are arranged opposite each other on the front and rear sides. The yarn bobbin drive motor 1 and angle feedback sensor 14 of the active yarn bobbin feeding device are accommodated between the oppositely arranged transverse beams. A set of warp yarn dividing plates 103 are installed at the front end of the yarn frame profile and in front of each row of active yarn bobbin feeding devices. Multiple sets of warp yarn dividing rods 104 are installed on the warp yarn dividing plates 103. The multiple sets of warp yarn dividing rods 104 are arranged obliquely on the warp yarn dividing plates 103. Each set of warp yarn dividing rods corresponds to a set of active yarn bobbin feeding devices. After the yarn of each set of active yarn bobbin feeding devices exits, it passes through the corresponding warp yarn dividing rod to be layered, so that each layer of yarn is clearly layered and does not interfere with each other.

[0047] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An active yarn bobbin feeding device, comprising a yarn bobbin, a yarn bobbin drive motor, and a base plate, wherein the yarn bobbin drive motor is fixed on the base plate; characterized in that: The yarn tube drive motor drives the yarn core on the yarn tube to rotate through the transmission component. After the yarn in the yarn tube comes out, the tension of the yarn is controlled by the swing rod component and then comes out through the fixed thread guide rod. The yarn bobbin includes a yarn bobbin shaft and a yarn bobbin core rotatably sleeved on the front end of the yarn bobbin shaft, the rear part of the yarn bobbin core being connected to a transmission assembly; the rocker arm assembly includes a lightweight rocker arm connecting block connected to the rear end of the yarn bobbin shaft via a connecting block bearing, one end of the lightweight rocker arm connecting block being equipped with a lightweight thread guide rocker arm, and a swing slot being provided on the base plate along the movement trajectory of the lightweight thread guide rocker arm, through which the lightweight thread guide rocker arm passes; the fixed thread guide rod is fixed to the base plate; Changes in yarn tension will pull the lightweight yarn guide lever to different angles. By detecting changes in the angle of the lightweight yarn guide lever, the rotation of the yarn drum drive motor can be controlled to rotate the yarn drum. The swing groove is provided with four range boundary values ​​a, b, c and d. The four range boundary values ​​a, b, c and d divide the swing rod angle into three regions, namely region A, region B and region C. The swing rod angle formed by the yarn passing through the lightweight yarn guide swing rod is different in different regions. When the lightweight yarn guide lever is in area A, the angle feedback sensor indicates that the lever angle is less than the normal range, and the yarn tension is also less than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the reverse direction to tighten the yarn tension. When the lightweight yarn guide lever is in area B, the angle feedback sensor indicates that the lever angle is within the normal range, and the yarn tension has already been adjusted by the swing of the lightweight yarn guide lever. In this case, the yarn bobbin drive motor does not need to rotate. When the lightweight yarn guide lever is in area C, the angle feedback sensor indicates that the lever angle is greater than the normal range, and the yarn tension is also greater than the normal range. In this case, the yarn bobbin drive motor needs to rotate in the forward direction to release the yarn proportionally. When the lightweight pendulum rod exceeds the boundary value 'a' or 'd', it is in an abnormal tension state and requires alarm and shutdown.

2. The active yarn bobbin feeding device according to claim 1, characterized in that: The transmission assembly is a gear structure or a synchronous belt structure. The gear structure includes a driving gear and a driven gear. The yarn bobbin drive motor is fixed on the base plate. The output shaft of the yarn bobbin drive motor passes through the base plate and is connected to the driving gear. The rear part of the yarn bobbin core is connected to the driven gear. The driving gear and the driven gear mesh with each other. Alternatively, the synchronous belt structure includes a driving pulley, a driven pulley, and a synchronous belt. The output shaft of the yarn bobbin drive motor is connected to the driving pulley. The rear part of the yarn bobbin core is connected to the driven pulley. The driving pulley and the driven pulley are connected by a synchronous belt to achieve synchronous movement.

3. The active yarn bobbin feeding device according to claim 1, characterized in that: The yarn core has at least two sets of annular grooves on its circumferential direction. Multiple sets of bulging springs are fixedly installed between the sidewalls of each set of annular grooves. The multiple sets of bulging springs are evenly arranged on the circumferential direction of the yarn core, and the maximum outer diameter formed by the bulging part of the multiple sets of bulging springs is greater than the outer diameter of the yarn core.

4. The active yarn bobbin feeding device according to claim 1, characterized in that: The angle of the lightweight pendulum is fed back by an angle feedback sensor, which can be an angle encoder or a potentiometer.

5. The active yarn feeding device according to claim 4, characterized in that: A rocker arm angle gear is fixed on the bearing of the connecting block, and an angle feedback gear is installed on the base plate. The angle feedback gear meshes with the rocker arm angle gear, and the angle feedback gear is connected to an angle feedback sensor.

6. The active yarn feeding device according to claim 5, characterized in that: For abnormal tension situations where the tension is too high, the lightweight pendulum rod cannot meet the tension requirements. To address this, add a counterweight to the lightweight pendulum rod, apply an external force to the lightweight pendulum rod connecting block, add steel balls inside the lightweight pendulum rod, or install a pull-down spring on the lightweight pendulum rod connecting block to enable the lightweight pendulum rod to meet the high tension requirements.

7. A yarn frame module employing an active yarn bobbin feeding device as described in any one of claims 1 to 6, characterized in that: The yarn frame module includes a profile structure, which comprises two sets of yarn frame profiles, front and rear. Each set of yarn frame profiles consists of multiple sets of transverse beams and multiple sets of longitudinal beams. The longitudinal beams are arranged side by side in the transverse direction, and the transverse beams are arranged side by side in the longitudinal direction. Multiple sets of transverse beams are symmetrically installed on the front and rear sides of the longitudinal beams. From top to bottom, multiple sets of active yarn bobbin feeding devices are installed side by side in the transverse direction between every two sets of transverse beams. At the right end of the yarn frame profile, and to the right of each row of active yarn bobbin feeding devices, a set of warp yarn dividing plates is installed. Multiple sets of warp yarn dividing rods are installed on the warp yarn dividing plates, and the multiple sets of warp yarn dividing rods are arranged obliquely on the warp yarn dividing plates. Each set of warp yarn dividing rods corresponds to one set of active yarn bobbin feeding devices. After the yarn from each set of active yarn bobbin feeding devices exits, it passes through the corresponding warp yarn dividing rods for layering, so that each layer of yarn is clearly layered and does not interfere with each other.

Images