Closed-loop control constant-tension active yarn releasing system

Abstract

The utility model discloses a closed-loop control constant tension active yarn pay-off system, which relates to the technical field of active yarn pay-off systems and comprises a creel, a plurality of active yarn pay-off devices are neatly mounted at the front end and the rear end of the inner side of the creel, and a plurality of eye guide plates are fixedly mounted on one side and the middle of the creel. A plurality of guide eye plates are arranged on the yarn frame, a plurality of guide eye holes are formed in the plurality of guide eye plates, fiber yarns on the plurality of active yarn releasing devices are respectively arranged on the inner sides of the corresponding guide eye holes, and the lower end of the yarn frame is fixedly connected with a bottom plate. The 120 active yarn releasing devices are reasonably, normatively and neatly arranged in one yarn releasing system, the layout of the fiber spindles is standardized, the number of the fiber spindles can be conveniently selected and controlled, the active yarn releasing devices are symmetrically installed at the front end and the rear end of the creel, space is saved, and meanwhile the production efficiency is improved if more fiber spindles are needed for production. Two or more sets of the systems can be arranged.

Description

Technical Field

[0001] This utility model relates to the field of active yarn feeding systems, and in particular to a closed-loop control constant tension active yarn feeding system. Background Technology

[0002] In recent years, carbon fiber composite materials have seen rapid market demand growth due to their unique properties such as high strength, low density, corrosion resistance, and aging resistance. With the widespread application of carbon fiber prepregs in the military and aerospace fields, more stringent requirements have been placed on the performance and production processes of these prepregs. These include process parameters such as the tension control precision, resin film areal density precision, and heating roller temperature control precision throughout the entire production process. Tension control precision, in particular, includes the tension control precision of the fiber yarn during the unwinding process. The accuracy of this parameter plays a crucial role in the performance of the prepreg, and often, prepreg production lines require dozens to hundreds of fiber spindles.

[0003] However, existing yarn feeding systems lack a reasonable and effective layout for fiber spindles, resulting in a chaotic arrangement of spindles that not only occupies a lot of space but also makes it difficult to select and control the number of fiber spindles, increasing the difficulty and cost of production management. At the same time, traditional yarn feeding systems are mostly fixed installations, making it difficult to flexibly move their positions according to the actual needs of the production site, lacking convenience and practicality. To solve the above problems, we propose a closed-loop control constant tension active yarn feeding system. Utility Model Content

[0004] The main objective of this invention is to provide a closed-loop controlled constant tension active yarn feeding system, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A closed-loop controlled constant tension active yarn feeding system includes a yarn frame. Multiple active yarn feeding devices are neatly installed at both the front and rear ends of the inner side of the yarn frame. Multiple eye guide plates are fixedly installed on one side and the middle of the yarn frame. Multiple eye guide holes are opened on the multiple eye guide plates. The fiber yarns on the multiple active yarn feeding devices are respectively placed inside the corresponding eye guide holes. A base plate is fixedly connected to the lower end of the yarn frame. Movable components are provided on both sides of the base plate.

[0007] Preferably, there are sixty active yarn feeding devices near the front end, with twelve active yarn feeding devices arranged in each row. In each row, the six active yarn feeding devices near one side form one group, and the six active yarn feeding devices near the other side form another group. There are also sixty active yarn feeding devices near the rear end, and the sixty active yarn feeding devices near the rear end are arranged symmetrically with the sixty active yarn feeding devices near the front end.

[0008] Preferably, there are twenty eye guide plates, including ten eye guide plates near the side of the yarn frame and ten eye guide plates near the middle of the yarn frame. Each eye guide plate corresponds to each group of active yarn feeding devices, and there are six eye guide holes. The six active yarn feeding devices in each group of active yarn feeding devices correspond one-to-one with the six eye guide holes on each eye guide plate.

[0009] Preferably, the active yarn feeding device includes a mounting plate with multiple mounting holes on its outer side and bolts on the inner side of the mounting holes. The mounting plate is fixedly mounted on the yarn frame by the bolts. A servo motor is fixedly mounted on one side of the mounting plate, and the output end of the servo motor is fixedly connected to a yarn feeding cylinder mounting shaft. The yarn feeding cylinder mounting shaft is located on the other side of the mounting plate. A first guide roller and a second guide roller are rotatably connected to the mounting plate above the yarn feeding cylinder mounting shaft. A tension sensor system is arranged between the first guide roller and the second guide roller, and the tension sensor system is mounted on the mounting plate.

[0010] Preferably, the movable component includes a handwheel, a rotating rod is fixedly connected to one side of the handwheel, a first worm and a second worm are fixedly connected to the outer side of the rotating rod, the first worm and the second worm are respectively located at the front and rear ends of the rotating rod, a first turbine is engaged on the outer side of the first worm, the first turbine is rotatably connected to the base plate, a first lead screw is threadedly connected to the inner side of the first turbine, the first lead screw is slidably connected to the base plate, and a universal wheel is installed at the lower end of the first lead screw.

[0011] Preferably, a second turbine is engaged on the outer side of the second worm gear, the second turbine is rotatably connected to the base plate, a second lead screw is threadedly connected to the inner side of the second turbine, the second lead screw is slidably connected to the base plate, and a caster wheel is installed at the lower end of the second lead screw.

[0012] Preferably, a limiting groove is provided on the outer side of both the first lead screw and the second lead screw, and a limiting block corresponding to the limiting groove is fixedly connected to the base plate, the limiting block being located on the inner side of the limiting groove.

[0013] Preferably, the lower end of the yarn frame is fixedly connected to an installation component, and the installation component is provided with a locking bolt. The installation component is fixedly connected to the base plate by the locking bolt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This closed-loop control constant tension active yarn feeding system arranges 120 active yarn feeding devices in a reasonable, standardized and neat manner in one yarn feeding system, which standardizes the layout of fiber spindles, facilitates the selection and control of the number of fiber spindles, and the active yarn feeding devices are symmetrically installed at both ends of the yarn frame to save space. At the same time, if more fiber spindles are required for production, two or more sets of this system can be arranged.

[0016] 2. This closed-loop control constant tension active yarn feeding system, through the cooperation of the first guide roller, the tension sensor system and the second guide roller, can plan a fixed path for each spindle of fiber, so that the yarn enters the inner side of the corresponding guide hole on the guide plate after passing through the fixed winding path of the active yarn feeding device, and then enters the subsequent production line.

[0017] 3. This closed-loop control constant tension active yarn feeding system, by rotating the hand dial, utilizes the worm gear, turbine, lead screw and other structural components to easily make the universal wheels at the bottom of the base plate contact or separate from the ground, thereby realizing the movement or fixation of the yarn frame, and the limiting groove and limiting block limit cooperation improves the stability when the lead screw moves up and down. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a closed-loop controlled constant tension active yarn release system according to the present invention.

[0019] Figure 2 This is a partial structural diagram of a closed-loop controlled constant tension active yarn unwinding system according to this utility model. Figure 1 ;

[0020] Figure 3 This is a partial structural diagram of a closed-loop controlled constant tension active yarn unwinding system according to this utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the active yarn feeding device of a closed-loop control constant tension active yarn feeding system according to this utility model.

[0022] Figure 5 This is a schematic diagram of the base plate structure of a closed-loop controlled constant tension active yarn feeding system according to the present invention.

[0023] Figure 6 This is a schematic diagram of the moving component structure of a closed-loop controlled constant tension active yarn feeding system according to the present invention.

[0024] Figure 7 This is an enlarged structural diagram of point A of a closed-loop controlled constant tension active yarn unwinding system according to this utility model;

[0025] Figure 8 This is an enlarged structural diagram of point B of a closed-loop controlled constant tension active yarn feeding system according to this utility model.

[0026] In the diagram: 1. Yarn frame; 2. Active yarn feeding device; 21. Mounting plate; 22. Servo motor; 23. Yarn feeding cylinder mounting shaft; 24. First guide roller; 25. Tension sensor system; 26. Second guide roller; 3. Eye guide plate; 4. Mounting component; 5. Base plate; 6. Moving assembly; 61. Hand dial; 62. Rotating rod; 63. First worm gear; 64. First turbine; 65. First lead screw; 66. Universal wheel; 67. Second worm gear; 68. Second turbine; 69. Second lead screw; 610. Limiting groove; 7. Eye guide hole. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1-8 As shown, a closed-loop controlled constant tension active yarn feeding system includes a yarn frame 1. Multiple active yarn feeding devices 2 are neatly installed at both the front and rear ends of the inner side of the yarn frame 1. Multiple eye guide plates 3 are fixedly installed on one side and the middle of the yarn frame 1. Multiple eye guide holes 7 are opened on the multiple eye guide plates 3. The fiber yarns on the multiple active yarn feeding devices 2 are respectively placed inside the corresponding eye guide holes 7. A base plate 5 is fixedly connected to the lower end of the yarn frame 1. Movable components 6 are provided on both sides of the base plate 5.

[0029] In this embodiment, there are sixty active yarn feeding devices 2 near the front end, with twelve active yarn feeding devices 2 arranged in each row. In each row, the six active yarn feeding devices 2 closest to one side form one group, and the six active yarn feeding devices 2 closest to the other side form another group. There are also sixty active yarn feeding devices 2 near the rear end, and the sixty active yarn feeding devices 2 near the rear end are arranged symmetrically with the sixty active yarn feeding devices 2 near the front end. There are twenty eye guide plates 3, including ten eye guide plates 3 near one side of the yarn frame 1 and ten eye guide plates 3 near the middle of the yarn frame 1. Each eye guide plate 3 corresponds to each group of active yarn feeding devices 2, and there are six eye guide holes 7. The six active yarn feeding devices 2 in each group of active yarn feeding devices 2 correspond one-to-one with the six eye guide holes 7 on each eye guide plate 3.

[0030] Specifically, up to 120 active yarn feeding devices 2 can be installed on the yarn frame 1, thereby enabling the installation of 120 fiber yarn bobbins. If more fiber yarn bobbins are required for production, two or more sets of this system can be arranged as needed. By symmetrically installing multiple active yarn feeding devices 2 at both ends of the yarn frame 1, space can be saved. Furthermore, the reasonable, standardized, and neat arrangement of 120 active yarn feeding devices 2 in one yarn feeding system standardizes the layout of the fiber yarn bobbins, thereby allowing for better selection and control of the number of fiber yarn bobbins.

[0031] In this embodiment, the active yarn feeding device 2 includes a mounting plate 21. Multiple mounting holes are provided on the outer side of the mounting plate 21, and bolts are provided on the inner side of the mounting holes. The mounting plate 21 is fixedly mounted on the yarn frame 1 by bolts. A servo motor 22 is fixedly mounted on one side of the mounting plate 21. The output end of the servo motor 22 is fixedly connected to a yarn feeding cylinder mounting shaft 23. The yarn feeding cylinder mounting shaft 23 is located on the other side of the mounting plate 21. A first guide roller 24 and a second guide roller 26 are rotatably connected to the mounting plate 21 above the yarn feeding cylinder mounting shaft 23. A tension sensor system 25 is provided between the first guide roller 24 and the second guide roller 26. The tension sensor system 25 is mounted on the mounting plate 21.

[0032] Specifically, by installing multiple fiber yarns on the outside of the corresponding yarn feeding cylinder mounting shaft 23, and with the cooperation of the first guide roller 24, tension sensor system 25 and second guide roller 26, a fixed path can be planned for each fiber. Thus, the yarn can enter the inner side of the corresponding guide hole 7 on the guide plate 3 after passing through the fixed winding path of the active yarn feeding device 2, and then enter the subsequent production line.

[0033] In this embodiment, the movable component 6 includes a handwheel 61. A rotating rod 62 is fixedly connected to one side of the handwheel 61. A first worm gear 63 and a second worm gear 67 are fixedly connected to the outer side of the rotating rod 62. The first worm gear 63 and the second worm gear 67 are respectively located at the front and rear ends of the rotating rod 62. A first turbine 64 is engaged on the outer side of the first worm gear 63. The first turbine 64 is rotatably connected to the base plate 5. A first lead screw 65 is threadedly connected to the inner side of the first turbine 64. The first lead screw 65 is slidably connected to the base plate 5. A universal wheel 66 is installed at the lower end of the first lead screw 65. A second turbine 68 is engaged on the outer side of the second worm gear 67. The second turbine 68 is rotatably connected to the base plate 5. A second lead screw 69 is threadedly connected to the inner side of the second turbine 68. The second lead screw 69 is slidably connected to the base plate 5. A universal wheel 66 is installed at the lower end of the second lead screw 69.

[0034] Specifically, by rotating the two handwheels 61, the handwheels 61 will drive the rotating rod 62 to rotate, thereby causing the first worm gear 63 and the second worm gear 67 to drive the corresponding first turbine 64 and the second turbine 68 to rotate. By rotating the first turbine 64 and the second turbine 68, the first lead screw 65 and the second lead screw 69 can be easily moved downwards, thereby making the universal wheels 66 at the four corners of the lower end of the base plate 5 contact the ground. At this time, by continuing to rotate the handwheels 61, the base plate 5 can be used to lift the yarn frame 1 off the ground. At this time, the universal wheels 66 can be used to easily move the yarn frame 1 to the required position as needed. Similarly, by rotating the handwheels 61 in the opposite direction, the base plate 5 can be used to lower the yarn frame 1 down, and then it will fall back to the ground, completing the movement of the yarn frame 1.

[0035] In this embodiment, a limiting groove 610 is provided on the outer side of both the first lead screw 65 and the second lead screw 69, and a limiting block corresponding to the limiting groove 610 is fixedly connected on the base plate 5. The limiting block is located on the inner side of the limiting groove 610.

[0036] Specifically, the limiting cooperation between the limiting groove 610 and the limiting block can further improve the stability of the first lead screw 65 and the second lead screw 69 when they move up and down.

[0037] In this embodiment, the lower end of the yarn frame 1 is fixedly connected to the mounting part 4, and the mounting part 4 is provided with locking bolts. The mounting part 4 is fixedly connected to the base plate 5 through the locking bolts.

[0038] Specifically, the design of the mounting component 4 and the locking bolts allows the yarn frame 1 to be fixedly installed on the upper end of the base plate 5.

[0039] It should be noted that this utility model is a closed-loop control constant tension active yarn feeding system. The user installs multiple spindles of fiber yarn on the outside of the corresponding yarn feeding bobbin mounting shaft 23. With the cooperation of the first guide roller 24, the tension sensor system 25, and the second guide roller 26, the yarn can enter the corresponding guide eye 7 on the guide plate 3 after passing through the fixed winding path of the active yarn feeding device 2, and then enter the subsequent production line. Up to 120 active yarn feeding devices 2 can be installed on the yarn frame 1, thus enabling the installation of 120 fiber yarn bobbins. If more fiber yarn bobbins are required for production, two or more sets of this system can be arranged as needed. By symmetrically installing multiple active yarn feeding devices 2 at both ends of the yarn frame 1, space can be better saved, and the reasonable, standardized, and neat arrangement of 120 active yarn feeding devices 2 in one yarn feeding system standardizes the layout of the fiber yarn bobbins. This allows for better selection and control of the number of fiber spindles. By simultaneously rotating two handwheels 61, the handwheels 61 will drive the rotating rod 62 to rotate, thereby enabling the first worm gear 63 and the second worm gear 67 to drive the corresponding first turbine 64 and the second turbine 68 to rotate. Through the rotation of the first turbine 64 and the second turbine 68, and the limiting cooperation of the limiting groove 610 and the limiting block, the first lead screw 65 and the second lead screw 69 can be easily moved downwards, thereby enabling the universal wheels 66 at the four corners of the lower end of the base plate 5 to contact the ground. At this time, by continuing to rotate the handwheels 61, the base plate 5 can be used to lift the yarn frame 1 off the ground. The universal wheels 66 can then be used to easily move the yarn frame 1 to the required position as needed. Similarly, by rotating the handwheels 61 in the opposite direction, the base plate 5 can be used to lower the yarn frame 1 down, and then it will fall back to the ground, completing the movement of the yarn frame 1, which is quite practical.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A closed loop controlled constant tension active yarn paying-off system comprising a creel (1) characterized in that: The yarn rack (1) is provided with a plurality of active yarn feeding devices (2) on both ends of the inner side, a plurality of guide eye plates (3) are fixedly installed on one side and the middle of the yarn rack (1), a plurality of guide eye holes (7) are formed in the guide eye plates (3), and the fiber yarns on the plurality of active yarn feeding devices (2) are arranged on the inner side of the corresponding guide eye holes (7).

2. The closed loop control constant tension active yarn paying-off system according to claim 1, characterized in that: The plurality of active yarn feeding devices (2) near the front end are provided with sixty, every twelve of the sixty active yarn feeding devices (2) are arranged in a row, six of the active yarn feeding devices (2) near one side in each row are arranged as a group, six of the active yarn feeding devices (2) near the other side are arranged as another group, and the plurality of active yarn feeding devices (2) near the rear end are also provided with sixty, and the sixty active yarn feeding devices (2) near the rear end are symmetrically arranged with the sixty active yarn feeding devices (2) near the front end.

3. The closed loop control constant tension active yarn paying-off system according to claim 2, characterized in that: The plurality of guide eye plates (3) are provided with twenty, ten of the guide eye plates (3) near one side of the yarn rack (1) are provided, and ten of the guide eye plates (3) near the middle of the yarn rack (1) are also provided, each guide eye plate (3) corresponds to each group of active yarn feeding devices (2), and the guide eye holes (7) are provided with six, and the six active yarn feeding devices (2) in each group of active yarn feeding devices (2) correspond to the six guide eye holes (7) on each guide eye plate (3) one by one.

4. The closed loop control constant tension active yarn paying-off system according to claim 1, wherein: The active yarn feeding device (2) comprises a mounting plate (21), a plurality of mounting holes are formed in the outer side of the mounting plate (21), bolts are arranged on the inner side of the mounting holes, the mounting plate (21) is fixedly installed on the yarn rack (1) through the bolts, a servo motor (22) is fixedly installed on one side of the mounting plate (21), a yarn feeding cylinder mounting shaft (23) is fixedly connected to the output end of the servo motor (22), the yarn feeding cylinder mounting shaft (23) is arranged on the other side of the mounting plate (21), a first guide roller (24) and a second guide roller (26) are arranged above the yarn feeding cylinder mounting shaft (23) and are rotatably connected to the mounting plate (21), a tension sensor system (25) is arranged between the first guide roller (24) and the second guide roller (26), and the tension sensor system (25) is installed on the mounting plate (21).

5. The closed loop control constant tension active yarn paying-off system according to claim 1, wherein: Said mobile assembly (6) includes a hand dial (61), one side of the hand dial (61) is fixedly connected with a rotating rod (62), the outer side of the rotating rod (62) is fixedly connected with a first worm (63) and a second worm (67), the first worm (63) and the second worm (67) are respectively arranged at the front and rear ends of the rotating rod (62), the outer side of the first worm (63) is engaged with a first turbine (64), the first turbine (64) is rotatably connected with the bottom plate (5), the inner side of the first turbine (64) is threadedly connected with a first lead screw (65), the first lead screw (65) is slidably connected with the bottom plate (5), the lower end of the first lead screw (65) is mounted with a universal wheel (66).

6. The closed loop control constant tension active yarn paying-off system according to claim 5, characterized in that: The outer side of the second worm (67) is engaged with a second turbine (68), the second turbine (68) is rotatably connected with the bottom plate (5), the inner side of the second turbine (68) is threadedly connected with a second lead screw (69), the second lead screw (69) is slidably connected with the bottom plate (5), the lower end of the second lead screw (69) is mounted with a universal wheel (66).

7. The closed loop control constant tension active yarn paying-off system according to claim 6, characterized in that: The outer side of the first lead screw (65) and the second lead screw (69) is respectively provided with a limiting groove (610), the bottom plate (5) is fixedly connected with a limiting block corresponding to the limiting groove (610), the limiting block is arranged at the inner side of the limiting groove (610).

8. The closed loop control constant tension active yarn paying-off system of claim 1, wherein: The lower end of the creel (1) is fixedly connected with a mounting piece (4), the mounting piece (4) is provided with a locking bolt, and the mounting piece (4) is fixedly connected with the bottom plate (5) through the locking bolt.

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