A flat yarn selecting device for broadening yarn

Abstract

The utility model discloses a kind of flat weft yarn selection devices for spreading width yarn, including substrate, at least one delivery unit is arranged on the substrate;Each The delivery unit includes a delivery mechanism and chuck fixedly installed at the end of the delivery mechanism;The chuck is used to clamp the thread end of flat spreading width yarn;The side of the substrate is equipped with thread taking mechanism, for clamping weft thread end and drawing weft yarn to complete weaving;The substrate is fixedly connected to the shaft, and the substrate can rotate around the shaft axis, to adjust the chuck on the selected delivery unit to the corresponding alignment position corresponding to the thread taking mechanism by rotating;After alignment is completed, the delivery mechanism can drive the chuck at its end to move in the direction close to thread taking mechanism, and the clamped weft thread end is delivered to the thread taking area of thread taking mechanism.The utility model can accurately deliver, and effectively maintain flat wide yarn form.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber cloth weaving equipment, and in particular to a flat weft yarn selection device for spreading yarn. Background Technology

[0002] In existing technologies, weft selection devices for conventional circular cross-section yarns are relatively mature. However, due to the special cross-sectional shape of flat, spread yarns, they are prone to twisting, folding, or wear during clamping and delivery, affecting yarn tension and weaving quality. Traditional weft selection devices are difficult to adapt to the morphological characteristics of flat yarns, easily leading to weft insertion failure or yarn damage. Therefore, it is necessary to design a weft selection device that can reliably clamp and accurately deliver flat, spread yarns. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a flat weft yarn selection device for spreading yarn, which can accurately deliver and effectively maintain the shape of flat wide yarn.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a flat weft yarn selection device for spread yarn, comprising a base plate on which at least one delivery unit is arranged; each delivery unit includes a delivery mechanism and a clamp fixedly installed at the end of the delivery mechanism; the clamp is used to clamp the end of the flat spread yarn; a yarn-taking mechanism is provided on one side of the base plate for clamping the weft yarn end and pulling the weft yarn to complete the weaving; the base plate is fixedly connected to a rotating shaft and is rotatable around the axis of the rotating shaft, so as to adjust the clamp on the selected delivery unit to the alignment position corresponding to the yarn-taking mechanism by rotation; after alignment, the delivery mechanism can drive the clamp at its end to move towards the yarn-taking mechanism, delivering the clamped weft yarn end to the yarn-taking area of ​​the yarn-taking mechanism.

[0005] Furthermore, the delivery direction of the delivery mechanism is arranged radially along the rotating shaft; the rotating shaft is arranged in the traction direction of the wire taking mechanism.

[0006] Furthermore, the substrate has an arc-shaped toothed surface structure on the side away from the wire taking mechanism, which is coaxial with the rotating shaft; a drive gear meshes with the arc-shaped toothed surface structure and is driven by a drive motor; the fan-shaped area between the center point of the rotating shaft and the two end points of the arc-shaped toothed surface structure is the mounting area, and multiple delivery units are arranged in the mounting area along the arc direction.

[0007] Furthermore, the drive gear is located in the traction direction of the wire taking mechanism.

[0008] Furthermore, the mounting area of ​​the substrate is provided with a plurality of guide wheels arranged along the arc direction, and the guide wheels are arranged close to the arc tooth surface structure; a gap is formed between two adjacent guide wheels to allow the weft yarn to pass through.

[0009] Furthermore, the number of guide wheels matches the number of gaps, and the number of delivery units matches the number of gaps; both guide wheels and delivery units are evenly distributed at equal intervals within the installation area.

[0010] Furthermore, the clamp is configured such that when clamping the weft yarn, the wide surface of the weft yarn is perpendicular to the plane of the substrate, and ensures that the portion of the weft yarn from the clamping point to the end of the yarn is consistent with the moving direction of the clamp.

[0011] Furthermore, the delivery mechanism may employ a telescopic drive cylinder, with its cylinder body fixed to the base plate, the telescopic rod extending and retracting radially along the rotating shaft, and the clamp fixedly installed at the end of the telescopic rod.

[0012] Beneficial Effects: This utility model discloses a flat weft yarn selection device for spreading yarn. Multiple delivery units are aligned via a rotatable base plate, resulting in a compact structure and accurate and rapid weft selection. The specially designed clamping method and guide wheel structure effectively maintain the original shape of the flat, spreading yarn, preventing twisting or folding during delivery. Furthermore, after the weft is in place, double-end clamping keeps the portion of the weft yarn about to be woven into the fabric straight and stretched, ensuring reliable weft retraction after weaving, achieving a spreading and fluffy effect, and guaranteeing weft insertion quality and fabric finish. The overall layout is reasonable, and the drive is stable, making it particularly suitable for high-speed weaving applications requiring frequent changes of multiple weft yarns. Attached Figure Description

[0013] Figure 1 This is a top view of one embodiment of the present invention.

[0014] Figure 2 This is a top view of the layout of the substrate and its components. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] As attached Figure 1-2 The aforementioned flat weft yarn selection device for spread yarn includes a base plate 1, on which at least one delivery unit is arranged; each delivery unit includes a delivery mechanism 4 and a clamp 5 fixedly installed at the end of the delivery mechanism 4.

[0017] The delivery mechanism 4 may be a telescopic drive cylinder, the cylinder body of which is fixed on the base plate 1, the telescopic rod extends and retracts radially along the rotating shaft 2, and the clamp 5 is fixedly installed at the end of the telescopic rod.

[0018] The clamp 5 is used to clamp the end of the flat, spread yarn, and the clamp 5 is configured to make the wide surface of the weft yarn perpendicular to the plane of the base plate 1 when clamping the weft yarn, and to ensure that the portion of the weft yarn from the clamping point to the end of the yarn is consistent with the moving direction of the clamp 5.

[0019] The substrate 1 is provided with a yarn taking mechanism 3 on one side, which is used to clamp the weft yarn end and pull the weft yarn to complete the weaving.

[0020] The base plate 1 is fixedly connected to the rotating shaft 2, and the base plate 1 can rotate around the axis of the rotating shaft 2. The rotation is used to adjust the clamp 5 on the selected delivery unit to the alignment position corresponding to the thread taking mechanism 3. After the alignment is completed, the delivery mechanism 4 can drive the clamp 5 at its end to move towards the thread taking mechanism 3, and deliver the clamped weft yarn end to the thread taking area of ​​the thread taking mechanism 3.

[0021] The delivery direction of the delivery mechanism 4 is arranged radially along the rotating shaft 2; the rotating shaft 2 is arranged in the traction direction of the wire taking mechanism 3.

[0022] The substrate 1 has an arc-shaped toothed surface structure 11 coaxial with the rotating shaft 2 on the side away from the thread taking mechanism 3. A drive gear 6 meshes with the arc-shaped toothed surface structure 11 and is driven by a drive motor. The fan-shaped area between the center point of the rotating shaft 2 and the two end points of the arc-shaped toothed surface structure 11 is the mounting area, and multiple delivery units are arranged along the arc direction within this mounting area. Preferably, the drive gear 6 is located in the traction direction of the thread taking mechanism 3. Driving the gear to rotate via a stepper motor ensures a stable and accurate weft selection process.

[0023] The mounting area of ​​the substrate 1 is provided with multiple guide wheels 7 arranged along an arc direction, and the guide wheels 7 are arranged close to the arc tooth surface structure 11; a gap is formed between two adjacent guide wheels 7 to allow the weft yarn to pass through. This ensures that when the substrate 1 is rotated to any angle, the selected multiple weft yarns can always be in contact with one guide wheel, effectively maintaining the original shape of the flat and widened yarn, preventing it from twisting or folding during delivery, and ensuring the quality of weft insertion.

[0024] Preferably, the number of guide wheels 7 matches the number of gaps, and the number of delivery units matches the number of gaps; both guide wheels 7 and delivery units are evenly distributed at equal intervals within the installation area.

[0025] Example: Includes a fan-shaped substrate with a rotating shaft fixed at the center of its arc, allowing the substrate to rotate around the shaft axis. A yarn-taking mechanism is provided on one side of the substrate. Six delivery units are evenly mounted on the substrate circumferentially. Each delivery unit includes a cylinder serving as a delivery mechanism and a clamp fixed to the end of its telescopic rod; the clamp is designed to hold flat, spread yarn, with the wide side of the yarn perpendicular to the plane of the substrate.

[0026] Preferably, the clamp 5 is driven by a cylinder to clamp the yarn end, and can quickly complete the clamping and releasing actions through a solenoid valve. When clamping the yarn end, the two clamping blocks of the clamp 5 move synchronously closer to clamp the yarn end through the solenoid valve, and after completing the yarn end handover with the yarn take-up mechanism, the solenoid valve reverses to achieve rapid release. The cylinder can be a single-acting cylinder or a double-acting cylinder, with the double-acting cylinder providing higher clamping reliability. In addition, the clamp uses an extended clamping plate, which can increase the clamping area, further improve the stability of yarn end clamping, avoid yarn end slippage during delivery, and is more suitable for clamping and delivering flat, wide yarns.

[0027] The substrate has a toothed surface machined along its arc-shaped edge, which meshes with a drive gear. A drive motor rotates the gear, causing the substrate to rotate and align the delivery unit with the yarn-taking mechanism. Seven guide wheels are also mounted on the substrate, creating six gaps for the weft yarn to pass through.

[0028] This solution is suitable for a variety of weft yarn selections, such as choosing weft yarns of different colors (or materials) for weaving.

[0029] During operation, the substrate rotates and aligns, causing the selected delivery mechanism to align and overlap with the weft insertion direction. After alignment, the telescopic rod of the selected delivery mechanism extends, delivering the weft yarn end held in its clamp to the yarn taking area of ​​the yarn taking mechanism. After the yarn taking mechanism takes the yarn end, the delivery mechanism remains in its original position and releases its clamp on the weft yarn, allowing the yarn taking mechanism to perform weft insertion. Once the weft yarn is pulled into position, it is clamped again by the clamp, thus straightening the weft yarn passing through the shed and maintaining a slightly stretched state. This allows the flat weft yarn to be weft-interlocked in a stretched and straight state, ensuring that the flat weft yarn is woven into the fabric in a straight and slightly stretched state, guaranteeing the quality of weft insertion and the fabric effect.

[0030] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A flat pick gaging device for open-width yarns, characterized in that: The system includes a substrate (1) on which at least one delivery unit is disposed; each delivery unit includes a delivery mechanism (4) and a clamp (5) fixedly mounted on the end of the delivery mechanism (4); the clamp (5) is used to clamp the end of a flat, spread yarn. The substrate (1) is provided with a yarn taking mechanism (3) on one side, which is used to clamp the weft yarn end and pull the weft yarn to complete the weaving; The substrate (1) is fixedly connected to the rotating shaft (2) and the substrate (1) can rotate around the axis of the rotating shaft (2) so as to adjust the chuck (5) on the selected delivery unit to the alignment position corresponding to the wire taking mechanism (3) by rotation; After alignment is completed, the delivery mechanism (4) can drive the clamp (5) at its end to move toward the yarn taking mechanism (3) to deliver the clamped weft yarn end to the yarn taking area of ​​the yarn taking mechanism (3).

2. The flat weft yarn selection device for spreading yarn according to claim 1, characterized in that: The delivery direction of the delivery mechanism (4) is arranged radially along the rotating shaft (2); the rotating shaft (2) is arranged in the traction direction of the wire taking mechanism (3).

3. The flat weft yarn selection device for spreading yarn according to claim 2, characterized in that: The substrate (1) has an arc tooth surface structure (11) on the side away from the wire taking mechanism (3) and is coaxial with the rotating shaft (2); a drive gear (6) meshes with the arc tooth surface structure (11) and is driven by a drive motor. The fan-shaped area between the center point of the rotating shaft (2) and the two ends of the arc tooth surface structure (11) is the installation area, and multiple delivery units are arranged in the installation area along the arc direction.

4. The flat weft yarn selection device for spreading yarn according to claim 3, characterized in that: The drive gear (6) is located in the traction direction of the wire taking mechanism (3).

5. The flat weft yarn selection device for spreading yarn according to claim 3, characterized in that: The mounting area of ​​the substrate (1) is provided with a plurality of guide wheels (7) arranged along the arc direction. The guide wheels (7) are arranged close to the arc tooth surface structure (11). A gap is formed between two adjacent guide wheels (7) for the weft yarn to pass through.

6. A flat yarn selecting device for broadening yarn according to claim 5, characterized in that: The number of guide wheels (7) matches the number of gaps, and the number of delivery units matches the number of gaps; both guide wheels (7) and delivery units are evenly distributed at equal intervals within the installation area.

7. The flat weft yarn selection device for spreading yarn according to claim 1, characterized in that: The clamp (5) is configured to make the wide side of the weft yarn perpendicular to the plane of the substrate (1) when clamping the weft yarn, and to ensure that the portion of the weft yarn from the clamping point to the end of the yarn is consistent with the moving direction of the clamp (5).

8. The flat weft yarn selection device for spreading yarn according to claim 1, characterized in that: The delivery mechanism (4) can be a telescopic drive cylinder, the cylinder body of which is fixed on the base plate (1), the telescopic rod extends and retracts radially along the rotating shaft (2), and the clamp (5) is fixedly installed at the end of the telescopic rod.

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