Pneumatic yarn transmission mechanism
By using a multi-directional bobbin and a pneumatically driven clamping wheel structure, the problems of yarn stress concentration and complex transmission are solved, achieving uniform yarn stretching and clean transmission, making it suitable for complex textile environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG KD TEXTILE MACHINERY
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-01
AI Technical Summary
Existing yarn stretching devices suffer from stress concentration and uneven force distribution, which makes the yarn prone to breakage. Furthermore, traditional drive methods are complex and difficult to adapt to long-distance and multi-bending-angle yarn transmission.
It adopts a multi-directional bobbin and a pneumatically driven clamping wheel structure. The multi-directional synchronous stretching of the yarn is achieved by the gas-driven rotation of the clamping wheel, which avoids stress concentration and simplifies the transmission system.
It achieves uniform stress distribution throughout the yarn, reduces equipment complexity, adapts to complex path transmission, improves yarn quality and cleanliness, and is suitable for various industrial environments.
Smart Images

Figure CN224186371U_ABST
Abstract
Description
A yarn pneumatic transmission mechanism Technical Field
[0001] This utility model relates to the field of textile technology, specifically to a yarn pneumatic transmission mechanism. Background Technology
[0002] In the textile industry, the tensile breaking properties of yarn directly affect production efficiency and product quality. Currently, most common yarn stretching devices employ a single-end fixing and unidirectional force application method, but this method has significant drawbacks. These significant drawbacks include stress concentration or uneven force distribution, which easily leads to breakage.
[0003] Single-end stretching causes stress concentration in a localized area of the yarn, leading to a stress concentration effect. The outer fibers of the yarn, due to their larger helix angle and higher tensile strength, will break preferentially during stretching. Existing devices cannot achieve uniform stress distribution across the entire yarn length, resulting in a non-simultaneous exacerbation of fiber breakage.
[0004] Currently, guide wheels are generally used to distribute force across the entire length of the yarn. These guide wheels are driven by a motor or belt, which makes the yarn relatively evenly stressed. However, using motor drive or belt drive increases the complexity of the equipment, and it is difficult to use motor drive or belt drive for conveying yarn over long distances and with multiple bends. Summary of the Invention
[0005] The purpose of this invention is to provide a yarn pneumatic transmission mechanism to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a yarn pneumatic transmission mechanism, comprising:
[0007] A multi-directional tube frame with multiple orientations, the interior of which is used for transmission lines, and an air inlet pipe is fixed to the exterior of the multi-directional tube frame;
[0008] The internal drive wheel, rotatably mounted inside the multi-directional spool, is used to guide the line.
[0009] The imported cover is detachably fixed to one end of the multi-directional spool cable input.
[0010] The outlet cover is detachably fixed to one end of the multi-directional spool wire output. The inside of the outlet cover has two sets of clamping wheels for clamping the wire and rotating under the drive of gas.
[0011] The closed cover is detachably fixed to the excess end of the multi-directional tube frame.
[0012] Furthermore, a support shaft runs through the axis of the inner drive wheel, the support shaft is fixed to the multi-directional cylinder frame, and the inner drive wheel is located in the middle of the multi-directional cylinder frame.
[0013] Furthermore, the outer wall of the inlet cover has holes for the passage of the wire.
[0014] Furthermore, a rectangular opening is provided on the outer side of the outlet cover, and two symmetrical outer cover plates are fixed on the outer side of the outlet cover. Two sets of air vents and one set of wire outlets are passed through the outer side of the two outer cover plates. The air vents and wire outlets of the two outer cover plates are spliced together. The air vents and wire outlets are connected to the rectangular opening, and the wire extends out from the wire outlet.
[0015] The inner walls on both sides of the rectangular opening are fixed with inner support plates. An inner shaft is rotatably installed between the two inner support plates. The clamping wheels are fixed in the middle section of the inner shaft. The two sets of clamping wheels clamp the line.
[0016] Both sides of the clamping wheel have circumferentially distributed fan plates. One edge of the circumferentially distributed fan plates is located on the extension line of the air outlet. Under the drive of gas, the two sets of clamping wheels rotate relative to each other.
[0017] Furthermore, the sealing cover is a closed configuration used to seal the end of the multi-directional tube frame without a wire body, thereby preventing excessive air outlets from the multi-directional tube frame.
[0018] Furthermore, one end of the multi-directional tube frame has a closed support surface for fixing it to other objects.
[0019] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0020] 1. Uniform stretching throughout the entire length reduces stress concentration. Through the synergistic action of the multi-directional bobbin and the pneumatically driven clamping wheels, the yarn is stretched synchronously in multiple directions. The clamping wheels are driven by airflow to rotate relative to each other, so that the yarn is evenly pulled in the multi-directional bobbin, avoiding single-point stress concentration, effectively solving the problem of preferential breakage of outer fiber, and significantly improving quality.
[0021] 2. The pneumatic drive simplifies the structure and adapts to complex paths. It uses an air source instead of a traditional motor or belt drive, directly driving the clamping wheels to rotate through gas pressure. This eliminates the need for a complex mechanical transmission system, significantly reducing equipment complexity. It is particularly suitable for yarn transport scenarios involving long distances and multiple bends, and also offers lower energy consumption and reduced maintenance costs.
[0022] 3. The outlet airflow simultaneously blows on the surface of the yarn during the yarn pulling process, which can remove floating dust and loose yarn ends, achieving simultaneous stretching and cleaning, directly improving the cleanliness of the yarn and the quality of subsequent processing.
[0023] 4. Through the flexible combination of the internal drive wheel and the closed cover / outlet cover, the yarn transmission direction can be quickly changed, adapting to the spatial layout requirements of different textile equipment, and has strong expandability.
[0024] 5. The pneumatic system has no electronic control components involved, making it safe for use in complex industrial environments such as high humidity and dust. Furthermore, the gas pressure regulation can quickly respond to the tensile strength requirements of different yarn materials. Attached Figure Description
[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0026] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 is a schematic diagram of the half-section structure of the multi-directional tube frame of this utility model;
[0028] Figure 3 is a schematic diagram of the outer structure of the outlet cover of this utility model;
[0029] Figure 4 is a schematic diagram of the inner structure of the outlet cover of this utility model.
[0030] In the diagram: 1. Multi-directional cylinder frame; 2. Inlet pipe; 3. Line body; 4. Inner drive wheel; 41. Support shaft; 5. Inlet cover; 6. Sealing cover; 7. Outlet cover; 71. Rectangular opening; 72. Outer cover plate; 73. Air outlet; 74. Cable outlet; 75. Inner support plate; 76. Inner shaft; 77. Fan plate; 78. Clamping wheel. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please refer to Figures 1-4. This utility model provides the following technical solution: a yarn pneumatic transmission mechanism, comprising:
[0033] The multi-directional tube frame 1 has multiple orientations and is used for the transmission line 3 inside. An air inlet pipe 2 is fixed on the outside of the multi-directional tube frame 1. The middle part of the multi-directional tube frame 1 is connected to each other and extends outward in multiple directions, and the extended parts are all tubular.
[0034] The inner drive wheel 4 is rotatably mounted inside the multi-directional spool 1 and is used to guide the line body 3;
[0035] The imported cover 5 is detachably fixed to one end of the input of the multi-directional tube frame 1 line 3;
[0036] The outlet cover 7 is detachably fixed to one end of the output of the multi-directional tube frame 1 line 3. The inner side of the outlet cover 7 has two sets of clamping wheels 78 for clamping the line 3 and rotating under the drive of gas.
[0037] The closing cover 6 is detachably fixed to the excess end of the multi-directional tube frame 1.
[0038] Specifically, when gas is introduced into the intake pipe 2, the line 3 passes through the multi-directional spool 1. The ends of the line 3 entering the multi-directional spool 1 and extending out of the multi-directional spool 1 are respectively limited by the inlet cover 5 and the outlet cover 7, so that the line 3 is located on the axis of the multi-directional spool 1, reducing contact with the multi-directional spool 1 and reducing friction.
[0039] The sealing cover 6 covers the excess end of the multi-directional cylinder 1, so that the gas moving into the multi-directional cylinder 1 moves as far as possible toward the outlet cover 7, and a small amount moves from the inlet cover 5.
[0040] A support shaft 41 runs through the axis of the inner drive wheel 4. The support shaft 41 is fixed to the multi-directional spool 1, and the inner drive wheel 4 is located in the middle of the multi-directional spool 1.
[0041] Specifically, the inner drive wheel 4 is rotatable, and when the line 3 passes through the inner drive wheel 4, it can change its extension direction, so that the line 3 extends out of the multi-directional tube frame 1 at an angle.
[0042] The outer wall of the inlet cover 5 has holes for the passage of the line 3, which correspond to the diameter of the line 3 to prevent a large amount of gas from moving outward from the inlet cover 5.
[0043] A rectangular opening 71 is provided on the outside of the outlet cover 7. Two symmetrical outer cover plates 72 are also fixed on the outside of the outlet cover 7. Two sets of air vents 73 and one set of wire outlet holes 74 are passed through the outside of the two outer cover plates 72. The air vents 73 and wire outlet holes 74 of the two outer cover plates 72 are spliced together. The air vents 73 and wire outlet holes 74 are connected to the rectangular opening 71. The wire 3 extends out from the wire outlet hole 74.
[0044] Inner support plates 75 are fixed on the inner walls of opposite sides of the rectangular opening 71. An inner shaft 76 is rotatably installed between the two inner support plates 75. Clamping wheels 78 are fixed in the middle section of the inner shaft 76. The two sets of clamping wheels 78 clamp the line body 3.
[0045] Both sides of the clamping wheel 78 have circumferentially distributed fan plates 77. One edge of the circumferentially distributed fan plates 77 is located on the extension line of the air outlet 73. Under the drive of gas, the two sets of clamping wheels 78 rotate relative to each other.
[0046] The sealing cover 6 is a closed design used to seal the end of the multi-directional tube frame 1 without the wire body 3, so as to prevent too much air outlet from the multi-directional tube frame 1.
[0047] Specifically, the outer cover plate 72 on the outside of the outlet cover 7 closes the rectangular opening 71, while the outlet hole 74 limits the cable body 3. The vent hole 73 is used to release gas. The vent hole 73 is located on the extension line of the symmetrical position of the upper and lower sets of circumferentially distributed fan plates 77. When the vent hole 73 releases gas, the airflow drives the two sets of circumferentially distributed fan plates 77 to rotate, realizing the relative rotation of the two sets of clamping wheels 78, and transmitting the clamped cable body 3 outward.
[0048] The multi-directional spool 1 has a closed support surface at one end, which is used to fix it to other objects and secure the multi-directional spool 1.
[0049] The working principle of this utility model is as follows: the line body 3 passes through the multi-directional tube frame 1, and also passes through the corresponding inlet cover 5 and outlet cover 7. The remaining ends of the multi-directional tube frame 1 are covered with sealing covers 6. The air inlet pipe 2 is connected to the air source, so that the gas enters into the multi-directional tube frame 1. The gas moves outward from the outlet cover 7 to generate airflow.
[0050] Based on the above, the gas moves outward from the vent 73, generating a thrust on the inner fan plate 77, causing the two sets of inner shafts 76 to rotate relative to each other, driving the two sets of clamping wheels 78 to rotate relative to each other as well. The yarn 3 clamped in the two sets of clamping wheels 78 will be pulled outward by the force. Therefore, the position where the multi-directional bobbin 1 is installed is the position where the yarn 3 is pulled, so that the yarn is subjected to force as evenly as possible. The gas can be transported through multiple parallel pipes, which can adapt to various environments.
[0051] In addition, the direction of the yarn 3 can be changed by passing through the inner drive wheel 4, so that the yarn 3 can move out from other outlets of the multi-directional bobbin 1, and the positions of the closing cover 6 and the outlet cover 7 can be replaced to change the transmission direction, which is suitable for the transmission of yarn at different angles.
[0052] At the same time, as the gas enters from the air inlet pipe 2 and moves out from the air outlet 73, it also has a blowing effect on the yarn body 3, blowing off the floating dust and thread ends on the yarn body 3, further improving the quality of the yarn.
[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A yarn pneumatic transmission mechanism, characterized in that, include: A multi-directional spool (1) has multiple orientations and is used to transmit the line (3) inside. An air inlet pipe (2) is fixed to the outside of the multi-directional spool (1). An inner drive wheel (4) is rotatably set inside the multi-directional spool (1) and is used to guide the line (3). An inlet cover (5) is detachably fixed to one end of the multi-directional spool (1) where the line (3) is input. An outlet cover (7) is detachably fixed to one end of the multi-directional spool (1) where the line (3) is output. The outlet cover (7) has two sets of clamping wheels (78) on its inner side for clamping the line (3) and rotating under the drive of the gas. A closing cover (6) is detachably fixed to the excess end of the multi-directional spool (1).
2. The yarn pneumatic transmission mechanism according to claim 1, characterized in that: A support shaft (41) runs through the axis of the inner drive wheel (4). The support shaft (41) is fixed to the multi-directional spool (1). The inner drive wheel (4) is located in the middle of the multi-directional spool (1).
3. The yarn pneumatic transmission mechanism according to claim 1, characterized in that: The outer wall of the inlet cover (5) has holes for the passage of the line (3).
4. The yarn pneumatic transmission mechanism according to claim 1, characterized in that: The outlet cover (7) has a rectangular opening (71) on its outer side. Two symmetrical outer cover plates (72) are also fixed to the outer side of the outlet cover (7). Two sets of air vents (73) and one set of wire outlets (74) are passed through the outer sides of the two outer cover plates (72). The air vents (73) and wire outlets (74) of the two outer cover plates (72) are spliced together. The air vents (73) and wire outlets (74) are connected to the rectangular opening (71). The wire (3) extends out from the wire outlet (74). The rectangular opening (71) Both sides of the inner wall are fixed with inner support plates (75), and an inner shaft (76) is rotatably installed between the two inner support plates (75). The clamping wheel (78) is fixed in the middle section of the inner shaft (76). The two sets of clamping wheels (78) clamp the line (3). Both sides of the clamping wheel (78) are extended with circumferentially distributed fan plates (77). The edge of one side of the circumferentially distributed fan plate (77) is located on the extension line of the air outlet (73). Under the drive of gas, the two sets of clamping wheels (78) rotate relative to each other.
5. The yarn pneumatic transmission mechanism according to claim 1, characterized in that: The sealing cover (6) is a closed configuration used to seal the end of the multi-directional tube frame (1) without the wire (3) to prevent the multi-directional tube frame (1) from having too many air outlets.
6. The yarn pneumatic transmission mechanism according to claim 1, characterized in that: The multi-directional tube frame (1) has a closed support surface at one end for fixing it to other objects.