A lifting weft selection device for multi-layer synchronous weaving

Abstract

This utility model discloses a lifting-type weft selection device for multi-layer synchronous weaving, including a lifting mechanism. Multiple sets of weft selection mechanisms are arranged vertically along the lifting mechanism, each set including at least one weft selection unit. Each weft selection unit includes a delivery unit and a clamping member fixedly installed at the end of each delivery unit, the clamping member being used to clamp the weft yarn end. Multiple weft insertion mechanisms are arranged vertically along one side of the lifting mechanism, each weft insertion mechanism corresponding to one set of the weft selection mechanisms. The lifting mechanism can adjust the selected delivery unit in each set of weft selection mechanisms to a position opposite to the corresponding weft insertion mechanism through lifting and lowering movements. After alignment, the multiple selected delivery units can drive their respective end clamping members to move closer to the corresponding weft insertion mechanism, delivering the clamped weft yarn end to the clamping area of ​​the weft insertion mechanism. This utility model can integrate the functions of multiple looms vertically to construct a multi-layer synchronous weaving unit.

Description

Technical Field

[0001] This utility model relates to the field of weaving equipment technology, and in particular to a lifting weft selection device for multi-layer synchronous weaving. Background Technology

[0002] In the textile production sector, the traditional approach to large-volume, high-consistency fabric orders is to use multiple independent looms for parallel production. However, this model has several inherent drawbacks: First, the horizontal arrangement of multiple looms occupies a huge amount of factory space, resulting in high infrastructure costs. Second, each loom operates independently, and its starting, stopping, and weft changing actions are difficult to keep perfectly synchronized. Even with the same weaving program, differences in individual machines and slight timing errors in the control system lead to quality problems such as color and density variations in fabrics produced by different looms, affecting the consistency of products within the same batch. Finally, equipping each loom with an independent weft selection device and drive system results in high total equipment investment, energy consumption, and maintenance costs, and complex production management.

[0003] Furthermore, while existing weft selection devices aim to improve efficiency, their innovations are mostly focused on optimizing the weft changing speed or reliability of a single loom, without fundamentally solving the problems of space occupation, synchronous control, and quality consistency in multi-loom parallel production. Therefore, there is an urgent need in this field for a new technical solution that can integrate production resources, achieve efficient synchronous weaving, and ensure extremely high consistency. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a lifting weft selection device for multi-layer synchronous weaving, which can integrate the functions of multiple looms in the vertical direction to build a multi-layer synchronous weaving unit.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a lifting-type weft selection device for multi-layer synchronous weaving, comprising a lifting mechanism. At least one set of weft selection mechanisms is arranged vertically along the lifting mechanism, and each set includes at least one weft selection unit. Each weft selection unit includes a delivery unit and a clamping member fixedly installed at the end of each delivery unit. The clamping member is used to clamp the weft yarn end. A weft insertion mechanism is provided on one side of the lifting mechanism corresponding to each set of weft selection mechanisms, and multiple weft insertion mechanisms are arranged vertically. The lifting mechanism can adjust the selected delivery unit in each set of weft selection mechanisms to a position opposite to the corresponding weft insertion mechanism through lifting and lowering movements. After alignment, the multiple selected delivery units can drive the clamping members at their respective ends to move towards the corresponding weft insertion mechanism, delivering the clamped weft yarn end to the clamping area of ​​the weft insertion mechanism.

[0006] Furthermore, the weft insertion directions of the multiple weft insertion mechanisms are consistent, and the delivery directions of the multiple delivery units in each group of weft selection mechanisms are consistent with the weft insertion direction of the corresponding weft insertion mechanism.

[0007] Furthermore, in the multiple sets of weft selection mechanisms, the multiple delivery units contained in each set are arranged in the same way.

[0008] Furthermore, the multiple delivery units in each set of the weft selection mechanism are evenly distributed at equal intervals along the vertical direction.

[0009] Furthermore, a pair of yarn guide rollers are provided on the side of the delivery unit away from the clamping member, and there is a gap between the two yarn guide rollers for the weft yarn to pass through, and the passing weft yarn is in contact with the roller surface of one of the yarn guide rollers.

[0010] Furthermore, the lifting mechanism includes a mounting frame, one side of which is configured as a vertical mounting surface, on which multiple delivery units are fixedly mounted; the mounting frame has at least one vertical guide hole for engaging with at least one vertical guide rod; the mounting frame also has a vertical threaded hole, which engages with a lead screw to form a helical transmission, and the lead screw is connected to the output end of a drive motor.

[0011] Furthermore, multiple weft selection units in the same group are installed on the same mounting frame, and the multiple mounting frames are arranged vertically in layers, with the lowest mounting frame cooperating with the lead screw drive.

[0012] Furthermore, the delivery unit is a telescopic drive cylinder, the cylinder body of which is fixed to the vertical mounting surface of the mounting frame, the telescopic rod of the telescopic drive cylinder extends and retracts in the horizontal direction, and the clamping member is fixedly installed at the end of the telescopic rod.

[0013] Beneficial effects: The lifting weft selection device for multi-layer synchronous weaving of this utility model has at least the following advantages:

[0014] 1. The parallel production task that traditionally required multiple independent looms is integrated into a vertically integrated "weaving tower". The synchronous weft selection and change of all weaving layers can be completed with a single lifting action, making the production of multiple fabrics as simple and efficient as operating a single machine. This realizes the upgrade of the production mode from "distributed serial" to "centralized parallel", which greatly improves the efficiency and synergy of mass production.

[0015] 2. The weft selection and insertion actions at all levels are precisely synchronized by the same drive and control system, fundamentally eliminating mechanical and control differences between different looms. This ensures that every piece of fabric in the same batch uses the exact same weft yarn at every weaving moment, thus achieving a high degree of consistency in color, density, and texture, significantly superior to the quality of traditional multi-machine parallel production.

[0016] 3. By sharing a single lifting mechanism, control system, and frame across multiple levels, the cost of equipment manufacturing, power consumption, and daily maintenance is significantly reduced compared to having multiple independent looms with the same production capacity. Simultaneously, the vertically integrated design greatly saves factory floor space, improves space utilization, and reduces investment in land and factory infrastructure.

[0017] 4. Simplified operation: Operators only need to set parameters and monitor operation for one integrated unit to complete the workload equivalent to operating multiple looms. Production progress is fully synchronized, simplifying production planning, material distribution, and finished product management processes, improving management efficiency, and reducing labor costs. Attached Figure Description

[0018] Figure 1 This is a side view schematic diagram of the overall structure of an embodiment of the present invention with a set of weft selection mechanisms;

[0019] Figure 2 for Figure 1 Top view of the embodiment; Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] As attached Figure 1-2 A lifting-type weft selection device for multi-layer synchronous weaving includes a lifting mechanism 1. At least one set of weft selection mechanisms is arranged vertically on the lifting mechanism 1, and each set includes at least one weft selection unit. Each weft selection unit includes a delivery unit 2 and a clamping member 3 fixedly installed at the end of each delivery unit 2. The clamping member 3 is used to clamp the weft yarn end. A weft insertion mechanism 4 is provided on one side of the lifting mechanism 1 corresponding to each set of weft selection mechanisms, and multiple weft insertion mechanisms 4 are arranged vertically. The lifting mechanism 1 can adjust the selected delivery unit 2 in each set of weft selection mechanisms to a position opposite to the corresponding weft insertion mechanism 4 through lifting and lowering movements. After alignment, the multiple selected delivery units 2 can drive the clamping members 3 at their respective ends to move closer to the corresponding weft insertion mechanism 4, delivering the clamped weft yarn end to the clamping area of ​​the weft insertion mechanism 4.

[0022] In this design, the weft insertion directions of the multiple weft insertion mechanisms 4 are consistent, and the delivery directions of the multiple delivery units 2 in each group of weft selection mechanisms are consistent with the weft insertion direction of the corresponding weft insertion mechanism 4. Furthermore, in each group of weft selection mechanisms, the multiple delivery units 2 are arranged in the same manner. Preferably, the multiple delivery units 2 in each group of weft selection mechanisms are evenly spaced vertically. This makes the overall structure more compact and the adjustment accuracy easier to control.

[0023] Each weft selection mechanism has multiple weft selection units that can hold weft yarns of different colors, materials, or specifications, providing great process flexibility for weaving wide yarns with complex patterns.

[0024] Based on the above structure, the entire latitude selection and delivery process is divided into two logically clear steps:

[0025] Lifting and positioning: The lifting mechanism is responsible for precise vertical positioning.

[0026] Horizontal delivery: The selected delivery unit is responsible for straight-line delivery in the horizontal direction.

[0027] This method of decomposing motion makes each actuator have a single task and a simple motion trajectory, reducing the difficulty of motion control and improving positioning accuracy and motion reliability.

[0028] Among them, the weft insertion mechanism 4 can be a rapier, which can actively clamp and realize the weft yarn handover. The weft insertion direction is consistent with the delivery direction, which also ensures the smooth and stable weft yarn handover process.

[0029] The delivery unit 2 is a telescopic drive cylinder, such as a pneumatic cylinder, whose cylinder body is fixed on the vertical mounting surface of the mounting bracket 11. The telescopic rod of the telescopic drive cylinder extends and retracts in the horizontal direction, and the clamping member 3 is fixedly installed at the end of the telescopic rod.

[0030] This solution can be used for the simultaneous weaving of multiple pieces of fabric with the same pattern. For example, multiple looms can be vertically integrated into a multi-layer structure, so that each weft insertion mechanism 4 completes the weft insertion work for one layer of loom. In each group of weft selection mechanisms, the weft yarn ends of different colors or varieties required for weaving are clamped onto multiple clamping parts 3 in the same order. In this way, during synchronous weaving, the synchronous weft changing of all layers (i.e., all fabrics produced in parallel) can be completed through a single lifting movement of the lifting mechanism. It also ensures that the same variety or color of weft yarn is selected on each layer. In addition, multiple weft insertion mechanisms can also be synchronized through the controller to clamp the yarn ends and pull the weft yarn to complete the weaving. This makes producing N pieces of the same fabric as convenient as operating a single loom, realizing true synchronous and parallel production. First of all, for single-layer looms, the lifting weft changing method is stable and fast, greatly shortening the preparation time before weft changing and improving weft changing efficiency. From the perspective of synchronous production of multiple looms, it improves the overall efficiency of batch weaving production.

[0031] Furthermore, the lifting mechanism, multiple weft selection mechanisms, and multiple weft insertion mechanisms can be electrically or communicatively connected to the same control system. Since the weft selection and insertion actions at all levels are commanded by the same control system, it ensures that every piece of fabric uses the exact same weft yarn type and color at the same time. This completely eliminates quality problems such as color and density differences caused by minor timing or mechanical variations between different looms. This is incomparably valuable for producing batches of products with extremely high consistency requirements, greatly improving the quality uniformity of the same batch and reducing the defect rate.

[0032] This lifting-type weft changing device structure and method enables the layered deployment of multiple looms, integrating N looms that would otherwise require a large factory area to be laid out horizontally into a vertical "weaving tower." This significantly saves on the floor space required for production workshops, which is of great significance in regions with high land costs. Furthermore, the entire "weaving tower" shares a powerful lifting mechanism, main control system, and frame, resulting in a significant reduction in initial equipment investment, energy consumption (electricity consumption), and daily maintenance costs compared to purchasing and maintaining N independent looms.

[0033] Operationally, operators only need to set the pattern program for one type of fabric on a main control interface to control the entire "weaving tower" to produce synchronously. Managing one integrated device is far simpler and more efficient than coordinating, monitoring, and maintaining N independent devices. In terms of schedule, all fabrics start and end synchronously, with completely consistent production progress, simplifying the processes of production planning, material management, and finished product warehousing.

[0034] The delivery unit 2 is provided with a pair of yarn guide rollers 5 on the side away from the clamping member 3. There is a gap between the two yarn guide rollers 5 for the weft yarn to pass through, and the passing weft yarn is in contact with the roller surface of one of the yarn guide rollers 5. This method is suitable for guiding flat yarns, avoiding twisting and folding of flat weft yarns during the weft insertion process, thereby improving the weaving quality and effect.

[0035] The lifting mechanism 1 includes a mounting frame 11, one side of which is configured as a vertical mounting surface. Multiple delivery units 2 are fixedly mounted on this vertical mounting surface, resulting in a compact structure and reduced mechanical complexity. The mounting frame 11 has at least one vertical guide hole for engaging with at least one vertical guide rod 12. The mounting frame 11 also has a vertical threaded hole, which forms a helical drive engagement with a lead screw 13 connected to the output end of a drive motor. Multiple weft selection units share the same lifting mechanism (e.g., a lead screw, a motor, and a guiding system), eliminating the need for an independent lifting drive for each weft selection unit. This significantly reduces the number of motors, transmission components, and control units, directly lowering hardware costs, energy consumption, and the complexity of the control system.

[0036] Alternatively, the mounting bracket 11 can be moved up and down simultaneously by two lead screws. A threaded hole is opened on each of the two vertical edges of the mounting bracket, and the two lead screws are connected by a synchronous sprocket and driven by the same drive motor, which can achieve a higher load-bearing capacity and more stable lifting movement.

[0037] Multiple weft selection units in the same group are mounted on the same mounting frame 11, which are stacked vertically. The lowest mounting frame 11 is driven by the lead screw 13. Designing the weft selection mechanism as a standardized modular unit facilitates installation, debugging, and replacement. When a delivery unit malfunctions, the maintenance objective is clear, and only a single module may need to be repaired or replaced, improving maintainability.

[0038] Furthermore, this modular design allows for adjustments to the vertical weft insertion mechanism by adding or removing layers, and correspondingly increasing or decreasing the number of weft insertion mechanisms, based on the requirements of mass production. The core lifting mechanism only needs to be selected appropriately according to the load; the system architecture requires no major modifications. This facilitates rapid transformation from small to large production workshops.

[0039] In summary, this solution, through improvements to the weft selection device, offers the possibility of a highly integrated new weaving model. Through physical innovation in vertical stacking and logical innovation in synchronous control, it achieves a leap in production efficiency and product quality consistency, while also bringing about significant optimization in space and cost. This makes it particularly suitable for large-scale production of standard fabric orders with high consistency requirements, representing an advanced direction for the development of textile equipment towards intensification and intelligence.

[0040] 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 lifting weft selection device for multi-layer synchronous weaving, characterized in that: It includes a lifting mechanism (1), on which at least one set of weft selection mechanisms are arranged vertically, and each set of weft selection mechanisms includes at least one weft selection unit; the weft selection unit includes a delivery unit (2) and a clamping member (3) fixedly installed at the end of each delivery unit (2), the clamping member (3) being used to clamp the weft yarn end; The lifting mechanism (1) has a weft insertion mechanism (4) on one side corresponding to each group of weft selection mechanisms, and multiple weft insertion mechanisms (4) are arranged vertically. The lifting mechanism (1) can adjust the selected delivery unit (2) in each group of weft selection mechanisms to a position opposite to the corresponding weft insertion mechanism (4) through lifting movement; After alignment, multiple selected delivery units (2) can drive the clamping parts (3) at their respective ends to move toward the corresponding weft insertion mechanism (4) to deliver the clamped weft yarn ends to the clamping area of ​​the weft insertion mechanism (4).

2. The lifting weft selection device for multi-layer synchronous weaving according to claim 1, characterized in that: The weft insertion directions of the multiple weft insertion mechanisms (4) are consistent, and the delivery directions of the multiple delivery units (2) in each group of weft selection mechanisms are consistent with the weft insertion directions of the corresponding weft insertion mechanism (4).

3. A lifting weft selection device for multi-layer synchronous weaving according to claim 2, characterized in that: In the multiple sets of weft selection mechanisms, the multiple delivery units (2) contained in each set are arranged in the same way.

4. A lifting weft selection device for multi-layer synchronous weaving according to claim 3, characterized in that: Multiple delivery units (2) in each set of the weft selection mechanism are evenly distributed at equal intervals along the vertical direction.

5. A lifting weft selection device for multi-layer synchronous weaving according to claim 1, characterized in that: The delivery unit (2) is provided with a pair of yarn guide rollers (5) on the side away from the clamping member (3). There is a gap between the two yarn guide rollers (5) for the weft yarn to pass through, and the passing weft yarn is in contact with the roller surface of one of the yarn guide rollers (5).

6. A lifting weft selection device for multi-layer synchronous weaving according to claim 1, characterized in that: The lifting mechanism (1) includes a mounting frame (11), one side of which is configured as a vertical mounting surface, and multiple delivery units (2) are fixedly mounted on the vertical mounting surface. The mounting bracket (11) has at least one vertical guide hole for engaging with at least one vertical guide rod (12); the mounting bracket (11) also has a vertical threaded hole, which engages with the lead screw (13) in a helical transmission, and the lead screw (13) is connected to the output end of the drive motor.

7. A lifting weft selection device for multi-layer synchronous weaving according to claim 6, characterized in that: Multiple weft selection units in the same group are installed on the same mounting frame (11). The multiple mounting frames (11) are stacked vertically, and the lowest mounting frame (11) is driven by the lead screw (13).

8. A lifting weft selection device for multi-layer synchronous weaving according to claim 7, characterized in that: The delivery unit (2) is a telescopic drive cylinder, the cylinder body of which is fixed on the vertical mounting surface of the mounting frame (11). The telescopic rod of the telescopic drive cylinder extends and retracts in the horizontal direction, and the clamping member (3) is fixedly installed at the end of the telescopic rod.

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