A textile drafting mechanism with adjustable roller spacing

Abstract

This utility model provides a textile drafting mechanism with adjustable roller spacing, including a frame, on which a slide rail is connected. The length direction of the slide rail is parallel to the length direction of the frame. Multiple roller assemblies are slidably connected on the slide rail. Each roller assembly includes a connecting frame, an upper roller, and a lower roller. The connecting frame is slidably connected to the slide rail and fixed to the slide rail with bolts. The upper roller and the lower roller are both rotatably connected to the connecting frame, thereby achieving the purpose of adjusting the distance between two adjacent roller assemblies.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment, and in particular, to a textile drafting mechanism with adjustable roller spacing. Background Technology

[0002] Spinning technology, as a core component of the textile industry, directly determines the performance and production cost of the final yarn through its efficiency and product quality. Drafting is a crucial step in the spinning process to form uniform yarn. Its main function is to effectively control and stretch the fiber bundle, causing the fibers to fully straighten and align parallel along the yarn axis, thereby reducing the cross-sectional thickness of the fiber bundle and improving uniformity. The drafting mechanism, as a core component of spinning equipment, typically consists of a series of rollers, which achieve fiber bundle drafting through differences in roller rotation speeds.

[0003] In traditional spinning drafting mechanisms, the spacing between rollers is preset and fixed. While this fixed spacing design can meet basic drafting requirements when processing specific types of fibers with relatively stable properties, its fixedness brings significant limitations in actual production.

[0004] First, different types of fiber materials exhibit different physical properties during the drawing process, including fiber length, fineness, crimp, and response to drawing force and tension. These differences determine the optimal control point of the rollers and the length of the drawing zone required to achieve the best drawing effect. Traditional fixed roller spacing is difficult to adapt to the processing needs of multiple fiber types simultaneously, often requiring mechanical adjustments between different fiber production processes. This is time-consuming and labor-intensive, and it is difficult to achieve the optimal process state for each fiber, limiting the versatility of the equipment and production efficiency.

[0005] Secondly, even with the same fiber material, the thickness, density, and internal uniformity of the fiber bundle will fluctuate to some extent after formation. In a drafting system with a fixed roller spacing, this fluctuation cannot be dynamically compensated for. Localized over-thickness or under-thickness of the fiber bundle will lead to uneven drafting, directly affecting the yarn's uniformity, strength, and appearance quality. Especially in the production of high-quality yarns, the requirements for precise control of the drafting process and yarn uniformity are extremely high, and traditional fixed-pitch mechanisms are insufficient to meet these demands.

[0006] Therefore, existing spinning drafting mechanisms, especially those using a fixed roller spacing design, have significant shortcomings in adapting to various fiber types, improving yarn uniformity and quality, and meeting the needs of automated production. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a textile drafting mechanism with adjustable roller spacing, which can quickly adjust the spacing between roller groups.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is: a textile drafting mechanism with adjustable roller spacing, including a frame, a slide rail connected to the frame, the length direction of the slide rail being parallel to the length direction of the frame, a plurality of roller groups slidably connected to the slide rail, the roller group including a connecting frame, an upper roller and a lower roller, the connecting frame being slidably connected to the slide rail and fixed to the slide rail by bolts, and the upper roller and the lower roller being rotatably connected to the connecting frame.

[0009] To achieve the above technical solution, during adjustment, loosen the bolts, move the connecting frame along the slide rail to the desired position, and then tighten it to fix it. During operation, the upper and lower rollers rotate on the connecting frame, uniformly stretching the passing fiber bundles. This adjustable spacing design gives the mechanism high flexibility, enabling it to quickly adapt to different fiber types and process parameter requirements, optimize the stretching effect, and thus significantly improve yarn uniformity and overall production efficiency.

[0010] As a preferred embodiment of this utility model, the slide rail has multiple scales, and the distance between adjacent scales is 2mm.

[0011] By implementing the above technical solution, these scales provide operators with an intuitive and reliable positioning reference, enabling the roller assembly to be accurately and quickly slid to the preset position and fixed. This reduces human error, thereby helping to ensure the stability and consistency of yarn quality in batch production.

[0012] As a preferred embodiment of this utility model, the outer wall of the lower roller is provided with a plurality of inclined grooves, which are evenly distributed along the axis of the lower roller.

[0013] The above technical solution significantly enhances the lower roller's ability to hold the fiber bundle, effectively preventing the fiber from slipping or slipping during the drafting process.

[0014] As a preferred embodiment of this utility model, the frame is provided with an installation groove, the length direction of the installation groove is parallel to the length direction of the slide rail, and a fixing bolt is threaded onto the connecting frame, the fixing bolt passes through the installation groove and abuts against the outer wall of the frame.

[0015] To achieve the above technical solution, when adjusting the roller spacing, loosen the fixing bolts, and the connecting frame slides along the slide rail; the fixing bolts move accordingly within the mounting slot. After determining the spacing, tighten the fixing bolts so that they pass through the mounting slot and abut against the outer wall of the frame, thereby reliably fixing the connecting frame to the slide rail, ensuring that the roller spacing remains stable during the drafting process. After removing the fixing bolts and bolts from the connecting frame, the roller assembly can be removed from the frame.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. Significantly improved adaptability and versatility of the equipment: By achieving flexibility and adjustability of the roller group spacing, the shortcomings of traditional fixed spacing mechanisms that are difficult to adapt to different fiber types and diversified drafting process requirements are overcome, enabling the same equipment to process a wider range of materials and greatly improving production flexibility;

[0018] 2. Improved uniformity and quality of yarn production: Adjustable spacing allows for setting a better drafting area based on specific fiber characteristics and process parameters. Combined with the enhanced fiber gripping force from the lower roller skew groove, it reduces slippage and unevenness during the drafting process. The graduated slide rail ensures accurate and repeatable spacing settings, while the locking device ensures spacing stability during operation. These factors work together to effectively reduce yarn unevenness and improve yarn strength, appearance, and overall quality.

[0019] 3. Improved production efficiency and ease of operation: Compared with traditional equipment that requires mechanical modification or complex adjustments, this utility model can achieve spacing adjustment by sliding the connecting frame on the slide rail and fixing it with bolts. The process is intuitive, fast and convenient. The scale design further simplifies positioning, helps to achieve quick product change and standardized settings, reduces downtime, and thus improves production efficiency.

[0020] 4. Relatively simple and reliable structure: The spacing adjustment and locking are achieved by using basic mechanical components such as slide rails, connecting frames and bolts. The structure is reasonably designed, easy to manufacture, operate and maintain, and has good stability, which can ensure that the adjusted spacing remains unchanged under high-speed operation or vibration conditions of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the lower structure of this utility model;

[0023] Figure 3 To illustrate the structural diagram of the connecting frame;

[0024] Figure 4 To illustrate the structural diagram of the rack;

[0025] Figure 5 This is a schematic diagram illustrating the internal structure of the rack.

[0026] Reference numerals: 1. Bolt; 2. Slide rail; 3. Frame; 5. Upper roller; 6. Fixing bolt; 7. Connecting bracket; 8. Bearing; 9. Lower roller; 11. Scale; 12. Inclined groove; 13. Mounting groove. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0028] A textile drafting mechanism with adjustable roller spacing includes a frame 3 and multiple sets of rollers mounted on the frame 3. A slide rail 2 is fixedly connected to the side wall of the frame 3. The length direction of the slide rail 2 is parallel to the length direction of the frame 3. The slide rail 2 is a guide rail structure, and multiple equidistant graduations 11 are engraved on its upper surface, with a distance of 2 mm between adjacent graduations 11.

[0029] The upper surface of the frame 3 is provided with a mounting groove 13, which is an oblong groove. The length direction of the mounting groove 13 is parallel to the length direction of the slide rail 2.

[0030] Multiple roller assemblies are arranged sequentially along the slide rail 2. Each roller assembly includes an upper roller 5, a lower roller 9, and a connecting frame 7. The upper roller 5 is rotatably connected to the connecting frame 7 via bearings 8, and the outer layer of the upper roller 5 is covered with rubber material. The lower roller 9 is rotatably connected to the connecting frame 7 via bearings 8, and multiple evenly distributed inclined grooves 12 are formed on the outer wall of the lower roller 9 to enhance the gripping force.

[0031] The connecting bracket 7 is slidably connected to the slide rail 2 and fixed to the slide rail 2 by bolt 1.

[0032] The connecting bracket 7 has a threaded hole. The fixing bolt 6 passes through the mounting groove 13 on the frame 3 and is threadedly connected to the connecting bracket 7, thus fixing the connecting bracket 7 to the frame 3. The fixing bolt 6 is an expansion bolt. After adjusting the distance between the roller groups, tightening the fixing bolt 6 will press it against the outer wall of the frame 3, thereby firmly fixing the sliding connecting bracket 7 to the selected position on the slide rail 2.

[0033] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A textile drafting mechanism with adjustable roller spacing, comprising a frame (3), characterized in that: The frame (3) is connected to a slide rail (2), the length direction of the slide rail (2) is parallel to the length direction of the frame (3), and multiple roller groups are slidably connected on the slide rail (2). The roller group includes a connecting frame (7), an upper roller (5) and a lower roller (9). The connecting frame (7) is slidably connected to the slide rail (2) and fixed to the slide rail (2) by bolts (1). The upper roller (5) and the lower roller (9) are rotatably connected to the connecting frame (7).

2. The textile drafting mechanism with adjustable roller spacing according to claim 1, characterized in that: The slide rail (2) has multiple scales (11), and the distance between adjacent scales (11) is 2 mm.

3. The textile drafting mechanism with adjustable roller spacing according to claim 1, characterized in that: Multiple inclined grooves (12) are provided on the outer wall of the lower roller (9), and the multiple inclined grooves (12) are evenly distributed along the axis of the lower roller (9).

4. The textile drafting mechanism with adjustable roller spacing according to claim 1, characterized in that: The frame (3) is provided with an installation groove (13), the length direction of the installation groove (13) is parallel to the length direction of the slide rail (2), and a fixing bolt (6) is threaded on the connecting frame (7). The fixing bolt (6) passes through the installation groove (13) and abuts against the outer wall of the frame (3).

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