Bobbin capable of preventing yarn from loosening
By designing side plates, rotating rods, and other components on the yarn spool, the yarn is limited and guided, solving the problem of yarn loosening due to rotation during handling and storage, and improving the yarn winding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing yarn spools are prone to rotation due to vibration or collision during handling and storage, which can cause the yarn to loosen and affect the winding effect.
The design incorporates components such as side plates, rotating rods, rotating handles, positioning holes, fixing cylinders, and limit screws. By rotating the internally threaded rotating cylinder, the yarn is limited and guided, preventing it from coming loose.
It effectively prevents the yarn from coming loose due to rotation during the winding process, thus improving the winding effect and practicality of the yarn.
Smart Images

Figure CN224091343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile technology, and in particular to a yarn spool for preventing yarn from coming loose. Background Technology
[0002] Yarn spools, also known as yarn bobbins, are an indispensable tool in the textile industry. During textile production, it is often necessary to wind yarn onto a yarn bobbin or release wound yarn from a yarn bobbin to facilitate the operation of textile machines.
[0003] The published patent document CN219567170U discloses a yarn winding spool, including a main yarn spool, with side discs movably sleeved on both sides of the main yarn spool. One end of the main yarn spool passes through the side discs and is connected to a first pulley. A rotating rod is movably sleeved on the inner side of the two side discs, and one end of the rotating rod passes through the side discs and is connected to a second pulley. The first pulley and the second pulley are connected by a transmission belt.
[0004] However, the main bobbin in the above-mentioned yarn spool does not have an anti-rotation function, which makes it easy for the main bobbin to rotate during subsequent handling and storage due to external forces such as vibration and collision. This can cause the yarn wound on the main bobbin to loosen, which is not conducive to the winding of the yarn. Therefore, we propose a yarn spool to prevent the yarn from loosening. Utility Model Content
[0005] This invention provides a yarn spool to prevent yarn from coming loose, thus solving the technical problems mentioned in the background section.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A yarn spool for preventing yarn loosening includes a main yarn spool, both ends of which are provided with side plates. A rotating rod is fixedly connected to both ends of the main yarn spool, passing through the corresponding side plates and rotatably connected to the passing parts via bearings. A yarn fixing mechanism is provided on the surface of the main yarn spool. A rotating mechanism is provided on one side of the side plate provided on the right end face of the main yarn spool. A wire guiding mechanism is provided at the upper end of the main yarn spool.
[0008] The rotating mechanism includes a rotating handle, which is fixedly connected to one end of the corresponding rotating rod. The back of the rotating handle has a plurality of positioning holes evenly distributed in a circle, and a positioning component is provided on the back of the rotating handle.
[0009] The wire guiding mechanism includes two fixed plates that are respectively fixedly connected to the upper end face of the corresponding side plate. A guide slider is provided between the two fixed plates. The guide slider is connected to the two fixed plates through a reciprocating assembly. A wire pressing assembly is provided at the upper end of the guide slider.
[0010] A further improvement of this utility model is that: the positioning component includes a fixed cylinder, the fixed cylinder is fixedly connected to the corresponding side plate, a limit bearing is fixedly connected to one end of the fixed cylinder, an internally threaded rotating cylinder is fixedly connected inside the limit bearing, a limit screw is threaded inside the internally threaded rotating cylinder, the limit screw is inserted into the positioning hole, a square limit groove is opened inside the limit screw, a square rod is slidably connected to the inner wall of the square limit groove, and one end of the square rod is fixedly connected to the inner wall of the fixed cylinder.
[0011] A further improvement of the present invention is that the pressure assembly includes a guide groove, a pressure plate two is slidably connected to the inner wall of the guide groove, a trapezoidal screw two is rotatably connected to the upper end face of the pressure plate two via a bearing, the trapezoidal screw two passes through the guide slider and is threadedly connected to the through part, and a rotating cap two is fixedly connected to the upper end of the trapezoidal screw two.
[0012] A further improvement of the present invention is that the reciprocating assembly includes a reciprocating lead screw, which passes through the guide slider and is threadedly connected to the through portion. Both ends of the reciprocating lead screw pass through the corresponding fixing plates and are rotatably connected to the through portion via bearings.
[0013] A further improvement of the present invention is that: a pulley is fixedly connected to one end surface of the reciprocating lead screw, and a pulley is fixedly connected to the surface of the corresponding rotating rod below the pulley. The pulley and the pulley are connected by a transmission belt.
[0014] A further improvement of this utility model is that: a limiting rod is provided at the upper end of the reciprocating lead screw, the limiting rod passes through the guide slider and is slidably connected to the through portion, and the two ends of the limiting rod are respectively fixedly connected to the corresponding fixing plates.
[0015] A further improvement of the present invention is that the yarn fixing mechanism includes a fixing frame, the fixing frame is fixedly connected to the surface of the main yarn bobbin, a pressure plate is slidably connected to the inner wall of the fixing frame, a trapezoidal screw is rotatably connected to one side of the pressure plate via a bearing, the trapezoidal screw passes through the fixing frame and is threadedly connected to the through part, and a rotating cap is fixedly connected to one end of the trapezoidal screw.
[0016] The beneficial effects of this utility model are as follows: This utility model provides a yarn spool to prevent yarn from loosening, which has the following advantages:
[0017] Through the cooperation of the side plate, main yarn bobbin, rotating rod, rotating handle, positioning hole, fixed cylinder, square rod, limit screw, limit bearing, square limit groove, and internal thread rotating cylinder, when performing winding and unwinding operations, rotating the internal thread rotating cylinder causes the limit screw to move under the action of the square rod and square limit groove, separating the limit screw from the positioning hole, releasing the restriction on the rotating handle, and then the main yarn bobbin can rotate for winding and unwinding. When the main yarn bobbin is finished winding, reversing the internal thread rotating cylinder causes the limit screw to move in the opposite direction, allowing the limit screw to insert into the positioning hole, thereby limiting the rotation handle. The main yarn bobbin is positioned to limit its movement, preventing the yarn from unwinding due to the bobbin's rotation and improving winding efficiency. Furthermore, through the cooperation of the guide slider, guide groove, pressure plate two, rotating cap two, and trapezoidal screw two, the yarn end can be placed inside the guide groove after winding. Rotating cap two rotates the trapezoidal screw two, pushing pressure plate two downwards, thus pressing the yarn end inside the guide groove. This further prevents the yarn from unwinding, avoiding the yarn end from easily detaching from the main yarn bobbin and improving practicality.
[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of a yarn spool for preventing yarn from coming loose, provided in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 A schematic diagram of a rotating mechanism in a yarn spool to prevent yarn from coming loose is provided.
[0022] Figure 3 for Figure 2 A partial cross-sectional view of a bobbin designed to prevent yarn from coming loose;
[0023] Figure 4 for Figure 1 A schematic diagram of a yarn-fixing mechanism in a yarn spool to prevent yarn from coming loose is provided.
[0024] Figure 5 for Figure 1 A schematic diagram of a conductor mechanism in a bobbin for preventing yarn from coming loose is provided.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1. Side plate; 2. Main yarn bobbin; 3. Yarn fixing mechanism; 31. Fixing frame; 32. Pressure plate one; 33. Trapezoidal lead screw one; 34. Rotating cap one; 4. Rotating rod; 5. Wire guiding mechanism; 51. Fixing plate; 52. Limiting rod; 53. Reciprocating lead screw; 54. Guide slider; 55. Guide through groove; 56. Pressure plate two; 57. Rotating cap two; 58. Trapezoidal lead screw two; 59. Pulley one; 510. Transmission belt; 511. Pulley two; 6. Rotating mechanism; 61. Rotating handle; 62. Positioning hole; 63. Positioning assembly; 631. Fixing cylinder; 632. Square rod; 633. Limiting screw; 634. Limiting bearing; 635. Square limiting groove; 636. Internal thread rotating cylinder. Detailed Implementation
[0027] The following is in conjunction with the appendix Figure 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] Example 1
[0031] like Figure 1-5 As shown, this utility model provides a yarn spool for preventing yarn loosening, including a main yarn spool 2. Side plates 1 are provided at both ends of the main yarn spool 2. Rotating rods 4, which pass through the corresponding side plates 1 and are rotatably connected to the end faces of the main yarn spool 2 via bearings, are fixedly connected to both ends of the main yarn spool 2. A yarn-fixing mechanism 3 is provided on the surface of the main yarn spool 2. A rotating mechanism 6 is provided on one side of the side plate 1 on the right end face of the main yarn spool 2. A wire guide mechanism 5 is provided at the upper end of the main yarn spool 2. The rotating mechanism 6 includes a rotating handle 61, which is fixedly connected to one end of the corresponding rotating rod 4. Multiple positioning holes 62 evenly distributed in a circle are provided on the back of the rotating handle 61. A positioning component 63 is provided on the back of the rotating handle 61. The wire guide mechanism 5 includes two fixing plates 51, which are respectively fixedly connected to the upper end faces of the corresponding side plates 1. A guide slider 54 is provided between the two fixing plates 51. The guide slider 54 is connected to the two fixing plates 51 via a reciprocating component. The upper end of block 54 is provided with a pressure assembly. The positioning assembly includes a fixed cylinder 631, which is fixedly connected to the corresponding side plate 1. One end of the fixed cylinder 631 is fixedly connected to a limit bearing 634. The inside of the limit bearing 634 is fixedly connected to an internal threaded rotating cylinder 636. The internal thread of the internal threaded rotating cylinder 636 is connected to a limit screw 633. The limit screw 633 is inserted into a positioning hole. The inside of the limit screw 633 is provided with a square limit groove 635. The inner wall of the square limit groove 635 is slidably connected to a square rod 632. One end of the square rod 632 is fixedly connected to the inner wall of the fixed cylinder 631. The pressure assembly includes a guide groove 55. The inner wall of the guide groove 55 is slidably connected to a pressure plate 56. The upper end face of the pressure plate 56 is rotatably connected to a trapezoidal screw 58 through a bearing. The trapezoidal screw 58 passes through the guide slider 54 and is threadedly connected to the through part. The upper end of the trapezoidal screw 58 is fixedly connected to a rotating cap 57.
[0032] In this embodiment, one end of the yarn passes through the guide groove 55 and is then fixed to the surface of the main yarn bobbin 2 by the yarn fixing mechanism 3. When the winding operation is performed, the internal thread rotating cylinder 636 is rotated. The rotation of the internal thread rotating cylinder 636 causes the limiting screw 633 to move under the action of the square rod 632 and the square limiting groove 635, so that the limiting screw 633 separates from the positioning hole 62, releasing the limitation on the rotating handle 61. Then the main yarn bobbin 2 can rotate and the winding process can be performed. When the winding of the main yarn bobbin 2 is finished, the limiting screw 633 can be moved in the opposite direction by reversing the internal thread rotating cylinder 636, so that the limiting screw 633 is inserted into the positioning hole 62, thereby limiting the rotating handle 61 and thus limiting the main yarn bobbin 2. This design prevents the yarn wound on the main yarn bobbin 2 from becoming loose due to the rotation of the main yarn bobbin 2, thus improving the yarn winding effect. When the rotating rod 4 rotates, it causes the reciprocating component to drive the guide slider 54 to move back and forth, thereby performing wire guiding on the yarn and making it easier to wind the yarn evenly on the surface of the main yarn bobbin 2. When the yarn winding is complete, the end of the yarn can be placed inside the guide groove 55. By rotating the second cap 57, the second trapezoidal screw 58 is rotated, which pushes the second pressure plate 56 downward, pressing the end of the yarn placed inside the guide groove 55. This further prevents the yarn from becoming loose and avoids the yarn end from easily coming off the main yarn bobbin 2 if it is not limited, thus improving practicality.
[0033] Example 2
[0034] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the reciprocating assembly includes a reciprocating lead screw 53, which passes through a guide slider 54 and is threadedly connected to the through portion. Both ends of the reciprocating lead screw 53 pass through corresponding fixing plates 51 and are rotatably connected to the through portion via bearings. A pulley 59 is fixedly connected to one end surface of the reciprocating lead screw 53. A pulley 511 is fixedly connected to the surface of the corresponding rotating rod 4 below the pulley 59. The pulley 59 and the pulley 511 are connected by a transmission belt 510. A limiting rod 52 is provided at the upper end of the reciprocating lead screw 53. The limiting rod 52 passes through the guide slider 54 and is slidably connected to the through portion. Both ends of the limiting rod 52 are fixedly connected to the corresponding fixing plates 51.
[0035] In this embodiment, under the action of pulley 59, pulley 511 and transmission belt 510, the reciprocating screw 53 can be rotated when the rotating rod 4 rotates, so that the guide slider 54 can reciprocate back and forth between the two fixed plates 51, thereby performing wire guiding on the yarn and making the yarn evenly wound on the surface of the main yarn bobbin 2. The guide slider 54 can be limited and slid by the limiting rod 52.
[0036] Example 3
[0037] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the yarn fixing mechanism 3 includes a fixing frame 31, which is fixedly connected to the surface of the main yarn bobbin 2. A pressure plate 32 is slidably connected to the inner wall of the fixing frame 31. A trapezoidal screw 33 is rotatably connected to one side of the pressure plate 32 via a bearing. The trapezoidal screw 33 passes through the fixing frame 31 and is threadedly connected to the through part. A rotating cap 34 is fixedly connected to one end of the trapezoidal screw 33.
[0038] In this embodiment, by placing one end of the yarn inside the fixing frame 31, the trapezoidal screw 33 is rotated by rotating the cap 34, and the trapezoidal screw 33 drives the pressure plate 32 to move inside the fixing frame 31, thereby fixing one end of the yarn to the surface of the main yarn bobbin 2, which facilitates the winding process.
[0039] The specific working principle and usage method of this utility model are as follows:
[0040] This utility model provides a yarn spool to prevent yarn from coming loose, such as... Figure 1-5As shown, in use, one end of the yarn is passed through the guide groove 55, and then the other end of the yarn is placed inside the fixing frame 31. Rotating the cap 34 causes the trapezoidal screw 33 to rotate, which in turn moves the pressure plate 32 within the fixing frame 31, thus fixing one end of the yarn to the surface of the main yarn bobbin 2. Rotating the internally threaded rotating cylinder 636 causes the limiting screw 633 to move under the action of the square rod 632 and the square limiting groove 635, separating the limiting screw 633 from the positioning hole 62 and releasing the restriction on the rotating handle 61. Then, the main yarn bobbin 2 can rotate for winding. When the main yarn bobbin 2 finishes winding, reversing the internally threaded rotating cylinder 636 causes the limiting screw 633 to move in the opposite direction, inserting it into the positioning hole 62, thus limiting the rotating handle 61 and preventing the main yarn bobbin 2 from winding up. The yarn loosens due to the rotation of the main yarn bobbin 2, improving the yarn winding effect. When the rotating rod 4 rotates, the reciprocating screw 53 rotates under the action of pulley 59, pulley 511 and transmission belt 510, causing the guide slider 54 to reciprocate between the two fixed plates 51. This allows for yarn guiding, facilitating even winding of the yarn on the surface of the main yarn bobbin 2. The limiting rod 52 limits the sliding of the guide slider 54. When the yarn winding is complete, the end of the yarn can be placed inside the guide groove 55. The rotating cap 57 rotates the trapezoidal screw 58, which pushes the pressure plate 56 downward, pressing the yarn end placed inside the guide groove 55. This further prevents the yarn from loosening and avoids the yarn end from easily detaching from the main yarn bobbin 2 if it is not limited, thus improving practicality.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A yarn bobbin for preventing yarn unraveling, comprising a main yarn bobbin (2), characterized in that, Both ends of the main yarn tube (2) are provided with side plates (1). Both ends of the main yarn tube (2) are fixedly connected with rotating rods (4) that pass through the corresponding side plates (1) and are rotatably connected to the passing parts through bearings. The surface of the main yarn tube (2) is provided with a yarn fixing mechanism (3). One side of the side plate (1) provided on the right end of the main yarn tube (2) is provided with a rotating mechanism (6). The upper end of the main yarn tube (2) is provided with a wire guide mechanism (5). The rotating mechanism (6) includes a rotating handle (61), which is fixedly connected to one end of the corresponding rotating rod (4). The back of the rotating handle (61) is provided with a plurality of positioning holes (62) evenly distributed in a circle, and the back of the rotating handle (61) is provided with a positioning component (63). The wire guide mechanism (5) includes two fixed plates (51) that are fixedly connected to the upper end face of the corresponding side plate (1). A guide slider (54) is provided between the two fixed plates (51). The guide slider (54) is connected to the two fixed plates (51) through a reciprocating assembly. A wire pressing assembly is provided at the upper end of the guide slider (54).
2. The yarn spool for preventing yarn unraveling according to claim 1, characterized in that, The positioning assembly includes a fixed cylinder (631), which is fixedly connected to the corresponding side plate (1). A limit bearing (634) is fixedly connected to one end of the fixed cylinder (631). An internally threaded rotating cylinder (636) is fixedly connected inside the limit bearing (634). A limit screw (633) is threadedly connected inside the internally threaded rotating cylinder (636). The limit screw (633) is inserted into the positioning hole. A square limit groove (635) is provided inside the limit screw (633). A square rod (632) is slidably connected to the inner wall of the square limit groove (635). One end of the square rod (632) is fixedly connected to the inner wall of the fixed cylinder (631).
3. The yarn spool for preventing yarn unraveling according to claim 1, characterized in that, The pressure assembly includes a guide groove (55), and a pressure plate (56) is slidably connected to the inner wall of the guide groove (55). A trapezoidal screw (58) is rotatably connected to the upper end face of the pressure plate (56) through a bearing. The trapezoidal screw (58) passes through the guide slider (54) and is threadedly connected to the through part. A rotating cap (57) is fixedly connected to the upper end of the trapezoidal screw (58).
4. The yarn spool for preventing yarn unraveling according to claim 1, characterized in that, The reciprocating assembly includes a reciprocating lead screw (53), which passes through the guide slider (54) and is threadedly connected to the through portion. Both ends of the reciprocating lead screw (53) pass through the corresponding fixing plate (51) and are rotatably connected to the through portion via bearings.
5. A yarn spool for preventing yarn unraveling according to claim 4, characterized in that, A pulley one (59) is fixedly connected to one end surface of the reciprocating screw (53), and a pulley two (511) is fixedly connected to the surface of the corresponding rotating rod (4) below the pulley one (59). The pulley one (59) and the pulley two (511) are connected by a transmission belt (510).
6. A yarn spool for preventing yarn unraveling according to claim 5, characterized in that, The upper end of the reciprocating lead screw (53) is provided with a limiting rod (52), the limiting rod (52) passes through the guide slider (54) and is slidably connected to the through part, and the two ends of the limiting rod (52) are respectively fixedly connected to the corresponding fixing plate (51).
7. A yarn spool for preventing yarn unraveling according to claim 1, characterized in that, The yarn fixing mechanism (3) includes a fixing frame (31), which is fixedly connected to the surface of the main yarn bobbin (2). A pressure plate (32) is slidably connected to the inner wall of the fixing frame (31). A trapezoidal screw (33) is rotatably connected to one side of the pressure plate (32) through a bearing. The trapezoidal screw (33) passes through the fixing frame (31) and is threadedly connected to the through part. A rotating cap (34) is fixedly connected to one end of the trapezoidal screw (33).
Citation Information
Patent Citations
Yarn winding reel
CN219567170U