Accurate portable adjustment type stabilizing spinning device

Abstract

The application provides a precise portable adjusting type reinforced spinning device, and belongs to the technical field of textile processing. The device comprises a yarn guide hook, a connecting rod and a connecting seat. Two yarn guide hooks are fixedly installed at the rod head and the rod tail of the connecting rod through square column shaped hook seats, the fixed rod part of the connecting rod is connected together through the connection hole of the connecting seat, and the seat surface lower edge of the connecting seat is provided with a fixing screw for fixing the connecting rod on the connecting seat. The connecting rod is provided with a holding position and a scale line, which facilitates fine adjustment; the connecting seat is fixed with the ring spinning machine leather roller shaft through a seat tongue, and the seat top opening hole can be randomly matched. The device is convenient to assemble and disassemble, can precisely adjust the yarn surrounding angle, the components are interlocked and fixed, and the component deviation caused by the machine running vibration can be avoided. The device can also assist in core-spun yarn formation, improve the spinning stability, form the core-spun yarn with good covering effect and compact yarn body.

Description

Technical Field

[0001] This invention relates to the field of textile processing technology, and in particular to a precise and portable adjustable yarn stabilization device. Background Technology

[0002] Core-spun yarn is a type of composite yarn that uses long filaments or high-performance fiber bundles as the core and short fiber slivers as the outer layer. It is widely used in flame-retardant protection, high-temperature resistance, abrasion resistance reinforcement, and functional composite materials. One of the key quality indicators of core-spun yarn is the positioning stability of the core filament in the yarn and the continuity and uniformity of the outer short fiber coating. If the convergence path, wrapping point position, or encirclement angle of the core filament and short fiber slivers fluctuates during the yarn forming process, it can easily lead to defects such as local exposure of the core filament, uneven coating thickness, and periodic filament leakage, resulting in fluctuations in the appearance, evenness, and mechanical properties of the yarn.

[0003] In existing technologies, to achieve sandwich or core-spun spinning, auxiliary core-spun units or yarn-guiding units are typically arranged between the drafting output zone and the twisting yarn-forming zone to complete the feeding of the core filament, the spreading of the short fiber sliver, and the guidance for their convergence. For example, the "Four-Roller Shaped Plate Negative Pressure Holding Spreading Fiber Sandwich Spinning Device and Method" disclosed in Chinese Invention Patent Publication No. CN116837509A includes an auxiliary core-spun unit to achieve the convergence and wrapping of the core filament and short fiber sliver after negative pressure holding spreading and front roller output; the "Core-Spun Spinning Device and Method Based on Calculus Principle and Its Application" disclosed in Chinese Invention Patent Publication No. CN118345540A includes a softening integral yarn-guiding unit to guide and control the yarn path and wrap angle to improve the core-spun coating effect. While these two approaches provide an effective structural basis for core-spun spinning, certain adaptation and stability issues have been exposed in actual industrial applications.

[0004] Specifically, core-spun spinning equipment commonly experiences periodic vibrations and transient disturbances during high-speed operation. Furthermore, different ring spinning machine models exhibit variations in cradle structure, roller and spool shaft assembly dimensions, spatial arrangement, and yarn path. Existing auxiliary core-spun units or yarn guiding units, when assembled onto different machine models, often require repositioning or adjustment based on manual experience, resulting in insufficient repeatability and controllability of their installation positions and angles. In addition, some structures are prone to slight shifts under operational vibrations, causing fluctuations in the convergence angle of the core filament and short fiber sliver, the yarn path near the wrapping point, and the encirclement angle. These fluctuations further destabilize the wrapping of the core filament by the covering layer, manifesting as localized periodic inadequacy in wrapping, increased differences in yarn structure, and even exposed core filament gaps, affecting the appearance consistency and mechanical property stability of the core-spun yarn.

[0005] Therefore, it is necessary to propose a guiding adjustment device with a simpler structure, easier installation and removal, adaptability to different machine models, and the ability to achieve fine angle adjustment, while being less prone to deviation during operation, based on existing auxiliary core-spun yarn units and yarn guiding units. This would reduce yarn path fluctuations caused by equipment vibration and machine model differences, and improve the stability and consistency of core-spun yarn wrapping. Based on this need, this invention proposes a precise and portable adjustable stabilizing spinning device for controllable adjustment of the convergence guidance of core yarn and short fiber slivers and the yarn path, thereby improving the stability problem in the core-spun yarn process. Summary of the Invention

[0006] To address the above problems, the present invention provides a precise and portable adjustable and stabilizing spinning device.

[0007] A precise and portable adjustable yarn-stabilizing device includes a left yarn guide hook, a connecting rod, a connecting seat, and a right yarn guide hook. The left yarn guide hook consists of a left hook rod, a left hook seat, and a left hook tongue. The connecting rod consists of a rod head, a gripping rod, a fixing rod, a fixing groove, and a rod tail. The connecting seat consists of a seat surface, a fixing screw, a seat back, a connecting hole, a seat tongue, and a seat top. The right yarn guide hook consists of a right hook rod, a right hook seat, and a right hook tongue. The left yarn guide hook is connected to the rod head of the connecting rod through the left hook seat. The gripping rod and the fixing rod are coaxially connected. The rod tail of the connecting rod is connected and fixed to the right hook seat of the right yarn guide hook. The fixing rod of the connecting rod passes through the connecting hole of the connecting seat for connection.

[0008] The left hook rod is cylindrical, and the left hook tongue is semi-cylindrical. A return hook channel is formed between the left hook rod and the left hook tongue for the yarn to pass through; the left hook seat is located on the right side of the left hook rod.

[0009] The right hook rod is cylindrical, the right hook tongue is semi-cylindrical, and a return hook channel is formed between the right hook rod and the right hook tongue for the yarn to pass through; the right hook seat is located on the left side of the right hook rod.

[0010] The connecting seat is configured such that the left guide hook and the right guide hook are installed on the yarn lead-out path downstream of the wrapping point after the roller shaft.

[0011] The grip rod has recesses around its perimeter to form grip points; the end of the grip rod has a graduated groove that corresponds to the graduations on the seat surface of the connecting base.

[0012] The length of the fixing rod is the same as the width of the connecting seat; the width of the connecting seat is the same as the width of the rubber roller shaft clamp of the ring spinning machine.

[0013] The lower end of the seat back is provided with three connecting holes. The fixing rod passes through the three connecting holes and connects with the connecting seat, so that the connecting rod can be axially rotated and adjusted relative to the connecting seat.

[0014] The fixing groove is located in the middle section of the fixing rod and is opposite to the middle connecting hole in the connecting hole; the fixing screw is located at the center of the lower end of the seat surface. When the fixing screw is tightened radially, its end extends into and abuts against the fixing groove to lock the connecting rod on the connecting seat.

[0015] The connecting seat is connected to the roller shaft of the ring spinning machine through the bayonet formed by the seat tongue; the top of the seat is configured with an interlocking structure that adapts to the shape of the cradle head end of different machine models.

[0016] For models with a traditional short cradle head that has a flat structure, the top of the seat can be designed as a closed type to cover and press the cradle head, thereby enhancing interlocking stability. For mechanical cradle models with plastic column parts, a columnar clearance notch is provided at the corresponding position on the top of the seat. During installation, the column first enters the notch and then engages with the fixing groove, achieving rapid positioning and locking in the optimal anti-displacement position.

[0017] The left or right guide hook is used alone to guide the convergence path of the core yarn and the short fiber sliver, which converge in a Y-shape at the wrapping point. The left or right guide hook changes its angle synchronously with the axial rotation of the connecting rod, so that the synthesized yarn is led out along a single-sided path after convergence, thereby making the core yarn segment and the yarn segment run in a straight line.

[0018] This invention uses a connecting seat to stably install the device on the roller shaft of a ring spinning machine. The seat tongue engages for positioning, and the seat top interlocks with the head of the cradle, improving the device's resistance to displacement under high-speed vibration. The fixing rod of the connecting rod passes through the connecting hole to form an axially rotatable adjustment relationship. After adjustment, the end of the fixing screw abuts against the fixing groove to achieve reliable locking, thus ensuring that the left and right guide hooks maintain their set angles without drifting. During spinning, the core filament and short fiber sliver are guided through the return hook channel of the guide hooks, forming a stable Y-shaped convergence and single-sided exit path at the wrapping point, reducing fluctuations in the convergence angle and encirclement angle, and suppressing yarn leakage and localized incomplete wrapping.

[0019] This invention integrates a structure focused on portable and rapid installation, precise and repeatable adjustment, and stable locking during operation: a connecting base serves as a universal mounting base, adaptable to different machine models; a connecting rod acts as an integrated angle transmission and synchronous adjustment component, allowing for fine-tuning and visual setting via the gripping points and graduated grooves; three connecting holes provide stable support and a rotation adjustment channel, and a vibration-resistant locking pair is formed by fixing screws and fixing slots. Thus, without altering key components of the original machine, precise control of the yarn path and wrap angle is achieved, improving the structural consistency of the core-spun yarn.

[0020] Compared with the prior art, the beneficial effects of this invention patent are:

[0021] (1) The present invention suppresses the angular drift caused by vibration through interlocking installation and screw fixing groove locking structure, reduces the fluctuation of the merging path, and reduces the leakage of wires and local incomplete coverage.

[0022] (2) The present invention achieves fine, visible and repeatable adjustment of the enclosing angle by using the grip point in conjunction with the scale groove and the seat scale, which facilitates the rapid reproduction of the best angle under different process parameters.

[0023] (3) The present invention adapts to different machine models of roller shafts and cradle structures by interlocking the connecting seat bayonet and the seat top, making it easy to install and remove, simple in structure, reducing modification costs and downtime, and facilitating partial replacement and maintenance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the precise and portable adjustable and stabilizing spinning device of the present invention.

[0025] Figure 2 This is a schematic diagram of the left guide hook structure.

[0026] Figure 3 This is a schematic diagram of the connecting rod.

[0027] Figure 4 This is a schematic diagram of the connector structure.

[0028] Figure 5 This is a schematic diagram of the right guide hook structure.

[0029] Figure 6 This is a diagram of the yarn forming structure of the precision portable adjustable and stabilizing spinning device of the present invention.

[0030] Figure 7 The image shows the core-spun yarn prepared in Example 1 magnified 35 times under a 3D microscope. The scale bar is 500 μm.

[0031] Figure 8 The image shows the core-spun yarn prepared in Comparative Example 1 magnified 35 times under a 3D microscope. The scale bar is 500 μm.

[0032] Figure Labels

[0033] 10. Roving feed drafting mechanism; 11. Bell mouth; 12. Back roller pair; 13. Middle roller pair; 14. Guide roller; 15. Front roller pair; 16. Drive roller; 17. Drive roller; 20. Precision portable adjustable stabilizing spinning device; 21. Left guide hook; 21-1. Left hook rod; 21-2. Left hook seat; 21-3. Left hook tongue; 22. Connecting rod; 22-1. Rod head; 22-2. Holding rod; 22-3. Fixing rod; 22-4. Fixed rod. 22-5. Fixed groove; 23. Rod end; 23. Connecting seat; 23-1. Seat surface; 23-2. Fixing screw; 23-3. Seat back; 23-4. Connecting hole; 23-5. Seat tongue; 23-6. Seat top; 24. Right guide hook; 24-1. Right hook rod; 24-2. Right hook seat; 24-3. Right hook tongue; S1. Short fiber sliver; F1. Core yarn; 30. Yarn twisting and winding mechanism; 31. Guide hook; 32. Steel wire ring; 33. Steel collar; 34. Fine yarn tube. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] Figure 7 This refers to basalt flame-retardant blended core-spun yarn spun using the aforementioned precise and portable adjustable stabilizing spinning device under 35x 3D microscope magnification.

[0037] Material parameters: Core filament material is 8tex basalt filament; short fiber sliver material is 610tex flame-retardant fiber blended roving, wherein the flame-retardant fiber blended roving is composed of meta-aramid, flame-retardant nylon and flame-retardant viscose in a mass ratio of 50:25:25.

[0038] The process parameters are as follows: spindle speed: 6500 r / min; twist: 60 T / 10 cm; front roller linear speed: 10.8 m / min; total draw ratio: 35; back zone draw ratio: 1.15.

[0039] Step 1: The core yarn F1 is installed at the filament supply position; the short fiber sliver S1 is installed at the feeding position of the roving feeding drafting mechanism 10; the connecting seat 23 is installed at the ring spinning machine's roller shaft position through the latch formed by the seat tongue 23-5, and the seat top 23-6 and the machine's cradle head end structure are mutually locked; the left guide hook 21 and the right guide hook 24 are positioned on the yarn lead-out path downstream of the wrapping point; the fixing rod 22-3 of the connecting rod 22 passes through the connecting hole 23-4 of the connecting seat 23 to achieve connection, so that the connecting rod 22 is relative to the connecting seat. 23 has axial rotation adjustment capability; manual rotation is performed through the gripping point formed by the outer circumference of the gripping rod 22-2, and the preset rotation angle is determined by comparing the scale groove at the tail of the gripping rod 22-2 with the scale on the seat surface 23-1; after the connecting rod 22 is rotated to the preset angle, the fixing screw 23-2 is tightened radially, so that its end extends into and abuts against the fixing groove 22-4, thereby locking the connecting rod 22 on the connecting seat 23, and keeping the angle between the left guide hook 21 and the right guide hook 24 from shifting during spinning operation;

[0040] Step 2: After unwinding from the roving package, the short fiber sliver S1 passes through the bell mouth 11 and enters the roving feeding and drafting mechanism 10. Under the drafting action of the back roller pair 12 and the middle roller pair 13, a stable sliver is formed. It is then further drafted by the front roller pair 15 and output as the source of the covering layer fiber. After unwinding from the package, the core yarn F1 is guided by the yarn guide roller 14 into the front roller pair 15, where it is output synchronously with the short fiber sliver S1 in the same output area, providing a stable linear velocity matching basis for subsequent core-spun bonding. The left hook rod 21-1 and the left hook tongue 21-3, and the right hook rod 24-1 and the right hook tongue 24-3 respectively form return hook channels for the short fiber sliver S1 and the core yarn F1. The formed core-spun yarn passes through; under the offset action of the left guide hook 21 or the right guide hook 24, the core filament F1 and the short fiber sliver S1 converge at the wrapping point in a Y-shape at a set angle; at the wrapping point, the core filament F1 rotates under the yarn twisting action and drives the short fiber sliver S1 to wrap around the outer layer to form the core-spun yarn; after convergence, the synthetic yarn is led out through a single-sided path in the left guide hook 21 or the right guide hook 24, so that the core filament segment and the yarn segment maintain a straight-line lead-out state; the formed core-spun yarn enters the yarn twisting and winding mechanism 30, and after being guided by the yarn guide hook 31, it is twisted and wound by the high-speed rotation of the wire ring 32 on the steel ring 33, and finally wound into shape on the fine yarn tube 34 for collection.

[0041] Comparative Example 1

[0042] Spinning was performed using the four-roller irregular plate negative pressure grip fiber spreading sandwich wrapping spinning device of Example 1 of Chinese Invention Patent Application No. CN202310478633.2, and the materials and process parameters were the same as in Example 1.

[0043] Figure 8This refers to the basalt flame-retardant blended core-spun yarn spun using the four-roller shaped plate negative pressure grip fiber spreading sandwich wrapping spinning device in Example 1 of Chinese Invention Patent Application No. CN202310478633.2, under 35x 3D microscope magnification.

[0044] By comparison Figure 7 , Figure 8 The core-spun yarns shown clearly demonstrate that those spun using the precise, portable, adjustable, and stabilizing spinning device exhibit complete coverage with no exposed fibers; the overall yarn coverage is excellent, and the parallelism of the outer fibers is high. However, under the same parameters, the core-spun yarn spun using the four-roller profiled plate negative pressure gripping fiber-spreading sandwich wrapping spinning device (Example 1, Chinese Invention Patent Application No. CN202310478633.2) exhibits periodic "leaking" of fibers. In the overall yarn quality comparison, the core-spun yarn spun using the precise, portable, adjustable, and stabilizing spinning device shows better coverage stability.

[0045] The yarns obtained in Example 1 and Comparative Example 1 were subjected to yarn tensile breaking performance tests, and the average values ​​of the obtained data were compared, as shown in Table 1:

[0046] Table 1

[0047] Experimental protocol Fracture strength (cN) Elongation at break (%) Example 1 627.8±26.46 2.15±0.26 Comparative Example 1 615.4±53.42 2.74±0.64

[0048] According to the comparison of yarn tensile breaking performance data in Table 1, the tensile breaking strength error value of the core-spun yarn spun by the precise portable adjustable stabilizing spinning device in Example 1 is smaller than that in Comparative Example 1, indicating that the yarn quality of Example 1 is more stable in terms of yarn performance stability.

[0049] The obtained yarn was subjected to yarn dryness performance testing, and the average value of the data was compared, as shown in Table 2:

[0050] Table 2

[0051] Experimental protocol Unevenness rate U (%) Coefficient of variation (CV) (%) Details (-50%) Thick section (+50%) Cotton knots (+200%) Example 1 7.56 9.24 5 5 0 Comparative Example 1 8.34 10.23 15 10 0

[0052] According to the comparison of yarn dryness performance data, the core-spun yarn of Example 1 spun by the precise portable adjustable stabilizing spinning device has fewer thick and thin parts than that of Comparative Example 1, and the yarn thickness is more uniform. This indicates that the yarn forming process is more stable and the yarn quality fluctuates less during the overall spinning process.

Claims

1. A precise and portable adjustable yarn-stabilizing device, characterized in that: The precision portable adjustable yarn stabilizing device includes a left yarn guide hook (21), a connecting rod (22), a connecting seat (23), and a right yarn guide hook (24). The left yarn guide hook (21) consists of a left hook rod (21-1), a left hook seat (21-2), and a left hook tongue (21-3). The connecting rod (22) consists of a rod head (22-1), a gripping rod (22-2), a fixing rod (22-3), a fixing groove (22-4), and a rod tail (22-5). The connecting seat (23) consists of a seat surface (23-1), a fixing screw (23-2), a seat back (23-3), a connecting hole (23-4), and a seat tongue (23-5). -5) and seat top (23-6); the right guide hook (24) is composed of right hook rod (24-1), right hook seat (24-2) and right hook tongue (24-3); the left guide hook (21) is connected to the rod head (22-1) of the connecting rod (22) through the left hook seat (21-2); the holding rod (22-2) and the fixing rod (22-3) are coaxially connected; the rod tail (22-5) of the connecting rod (22) is connected and fixed to the right hook seat (24-2) of the right guide hook (24); the fixing rod (22-3) of the connecting rod (22) is connected through the connecting hole (23-4) of the connecting seat (23).

2. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The left hook rod (21-1) is cylindrical, and the left hook tongue (21-3) is semi-cylindrical. A return hook channel is formed between the left hook rod (21-1) and the left hook tongue (21-3) for the yarn to pass through. The left hook seat (21-2) is located on the right side of the left hook rod (21-1).

3. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The right hook rod (24-1) is cylindrical, and the right hook tongue (24-3) is semi-cylindrical. A return hook channel is formed between the right hook rod (24-1) and the right hook tongue (24-3) for the yarn to pass through. The right hook seat (24-2) is located on the left side of the right hook rod (24-1).

4. The precise and portable adjustable stabilizing spinning device as described in claim 1, characterized in that: The connecting seat (23) is configured to allow the left guide hook (21) and the right guide hook (24) to be installed on the yarn lead-out path downstream of the wrapping point after the roller shaft.

5. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The gripping rod (22-2) has recesses around its perimeter to form gripping points; the end of the gripping rod (22-2) has a graduated groove that corresponds to the graduations on the seat surface (23-1) of the connecting seat (23).

6. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The length of the fixing rod (22-3) is the same as the width of the connecting seat (23); the width of the connecting seat (23) is the same as the width of the rubber roller shaft bayonet of the ring spinning machine.

7. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The lower end of the seat back (23-3) is provided with three connecting holes (23-4). The fixing rod (22-3) passes through the three connecting holes (23-4) and connects with the connecting seat (23), so that the connecting rod (22) can be axially rotated relative to the connecting seat (23).

8. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The fixing groove (22-4) is located in the middle section of the fixing rod (22-3) and is opposite to the middle connecting hole in the connecting hole (23-4); the fixing screw (23-2) is located at the center of the lower end of the seat surface (23-1). When the fixing screw (23-2) is tightened radially, its end extends into and abuts against the fixing groove (22-4) to lock the connecting rod (22) on the connecting seat (23).

9. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The connecting seat (23) is connected to the roller shaft of the ring spinning machine through the bayonet formed by the seat tongue (23-5); the seat top (23-6) is configured as an interlocking structure adapted to the shape of the cradle head end of different machine models. For machine models with a traditional short cradle head end that is a flat structure, the seat top (23-6) can be designed as a closed type to cover and press the cradle head end; when the cradle head end is a mechanical cradle structure with a column, the seat top (23-6) is provided with a notch for avoiding the column. The notch is used to engage and position with the column so that the connecting seat (23) is interlocked and fixed at the optimal installation position.

10. The precision portable adjustable and stabilizing spinning device as described in claim 1, characterized in that: The left guide hook (21) or the right guide hook (24) is used alone to guide the confluence path of the core yarn (F1) and the short fiber sliver (S1). The core yarn (F1) and the short fiber sliver (S1) converge in a Y-shape at the wrapping point. The left guide hook (21) or the right guide hook (24) changes its angle synchronously with the axial rotation of the connecting rod (22), so that the synthesized yarn is led out along a single-sided path after confluence, thereby making the core yarn segment and the yarn segment run in a straight line.

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