Fiber winding self-weight tension maintaining device
By using the self-weight bar device in the fiber winding molding process, the problem of unstable yarn tension control is solved, and the tension of the yarn is maintained when the fiber winding machine is decelerated, improving product quality and reducing equipment costs.
Patent Information
- Application Number
- CN202422292794.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In the fiber wrapping molding process, the yarn tension control in the prior art is unstable, resulting in over-pull or loose yarn, affecting product quality, and high equipment costs.
The self-weight bar device is used to allow the yarn to pass through both ends of the inlet bar and the outlet bar, and pull down with the influence of the weight of the self-weight bar, avoiding the use of cylinders to ensure that the yarn maintains tension when the fiber winding machine decelerates.
It significantly improves product quality, ensures consistent yarn tension and reduces equipment costs.
Smart Images
Figure CN222907176U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fiber winding production equipment, and particularly relates to a fiber winding self-weight maintaining tension device. Background Art
[0002] Fiber winding molding is one of the main manufacturing processes of resin matrix composites. Under the conditions of controlling tension and predetermined linear type, continuous fiber rovings or tapes are impregnated with resin sizing and continuously wound on a mandrel or liner corresponding to the inner cavity size of the product, and then cured at room temperature or heating conditions to make a product of a certain shape.
[0003] In the fiber winding molding process, in the existing solutions, a vertically moving cylinder is usually used to control and maintain the yarn tension. At present, when the fiber winding machine decelerates, the tension control device may cause the yarn to be over-pulled, some of the yarns to drop, and the tension control to be unstable. These yarns are slack and without tension when winding the pressure vessel, affecting the product quality, and at the same time, the equipment cost is high.
[0004] Therefore, the applicant has made beneficial explorations and attempts and found a solution to the above problems. The technical solution to be introduced below was generated under this background. Content of the Utility Model
[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a fiber winding self-weight maintaining tension device. By the weight of the self-weight lever itself, when the yarn passes through both ends of the inlet lever and the outlet lever, it is pulled down under the influence of the weight of the self-weight lever. Without a cylinder, when the fiber winding machine decelerates and the yarn is over-pulled, the yarn can be tightened, so that the tension is always maintained, significantly improving the product quality and the equipment cost is low.
[0006] The above technical problems of the utility model are mainly solved by the following technical solution: a fiber winding self-weight maintaining tension device, including a fixed base A and a fixed base B with the same structure. A guide rail A is fixedly inserted on the fixed base A, and a guide rail B is fixedly inserted on the fixed base B. Fixed slots are provided on both the guide rail A and the guide rail B, and pulleys are provided on both of the 2 fixed slots. A self-weight lever for maintaining the yarn tension is provided between the 2 fixed slots. Installation bars are fixed at the tops of the guide rail A and the guide rail B, and an inlet lever is fixed at one end of the 2 installation bars, and an outlet lever is fixed at the other end of the 2 installation bars.
[0007] Preferably, a plurality of vertical rods for separating the yarns are fixedly arranged in parallel on both the inlet lever and the outlet lever, and the positions of the plurality of vertical rods on the inlet lever and the outlet lever correspond to each other one by one.
[0008] Preferably, a buffer A is fixed on one side of the fixed base A, and a buffer B is fixed on one side of the fixed base B.
[0009] Preferably, the two fixing grooves are respectively slidably connected to the guide rail A and the guide rail B through pulleys.
[0010] The beneficial effects of the present utility model are as follows:
[0011] Compared with the prior art, in the present utility model, due to the weight of the self-weight lever itself, when the yarn passes through both ends of the inlet lever and the outlet lever, it is pulled down under the influence of the weight of the self-weight lever. Without a cylinder, when the fiber winding machine decelerates and the yarn is over-pulled, the yarn can be tightened, so that the tension is always maintained, significantly improving the product quality and the equipment cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural view of the first angle of the present utility model;
[0013] Figure 2 is a schematic structural view of the second angle of the present utility model when the self-weight lever is above;
[0014] Figure 3 is a schematic structural view of the third angle of the present utility model;
[0015] Figure 4 is a schematic structural view of the fourth angle when the self-weight lever is below.
[0016] In the figure: 1, inlet lever; 2, outlet lever; 3, pulley; 4, guide rail A; 5, buffer A; 6, self-weight lever; 7, yarn; 8, fixing groove; 9, guide rail B; 10, buffer B; 11, fixed base A; 12, fixed base B. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The following is a further specific description of the technical solution of the present utility model through examples in combination with the attached Figures 1-4 structural views.
[0018] Embodiment: A fiber winding self-weight tension maintaining device includes a fixed base A 11 and a fixed base B 12. A guide rail A 4 is fixedly inserted on the fixed base A 11, and a guide rail B 9 is fixedly inserted on the fixed base B 12. Fixing grooves 8 are symmetrically arranged on the guide rail A 4 and the guide rail B 9. Pulleys 3 are arranged on the two fixing grooves 8. A self-weight lever 6 for maintaining the tension of the yarn 7 is arranged between the two fixing grooves 8; mounting bars are fixed on the tops of the guide rail A 4 and the guide rail B 9. An inlet lever 1 is fixed at one end of the two mounting bars, and an outlet lever 2 is fixed at the other end of the two mounting bars.
[0019] Specifically, the guide rail A4 and the guide rail B9 are respectively fixedly installed on the fixed base A11 and the fixed base B12 by means of plugging. The fixing grooves 8 provided on the guide rail A4 and the guide rail B9 are respectively slidably connected to the guide rail A4 and the guide rail B9 through pulleys 3. The two ends of the self-weight lever 6 are respectively plugged into the 2 fixing grooves 8. The two ends of the 2 mounting bars are respectively fixed to the incoming line lever 1 and the outgoing line lever 2. A plurality of vertical rods are fixedly arranged in parallel on both the incoming line lever 1 and the outgoing line lever 2. The vertical rods are fixed by welding, and the positions of the plurality of vertical rods on the incoming line lever 1 and the outgoing line lever 2 correspond to each other one by one. The surfaces of the incoming line lever 1, the outgoing line lever 2, the self-weight lever 6 and the vertical rods are all treated with chrome mirror finish. The connections between the vertical rods and the incoming line lever 1 and between the vertical rods and the outgoing line lever 2 are all smoothed to maintain smoothness and avoid damage to the yarn 7. A buffer A5 is fixedly installed on one side of the fixed base A11, and a buffer B10 is fixedly installed on one side of the fixed base B12. The buffer A5 and the buffer B10 are provided to buffer the downward sliding of the 2 fixing grooves 8 carrying the self-weight lever 6.
[0020] The working principle of the present utility model:
[0021] During use, multiple bundles / multiple strands / multiple yarns 7 respectively pass through between two adjacent vertical rods above the incoming line lever 1, then bypass under the self-weight lever 6, and finally respectively pass through between two adjacent vertical rods above the outgoing line lever 2 and are wound on the winding device. As Figure 2 shown, when the winding device accelerates, the tension of the yarn 7 will increase. At this time, the increased tension of the yarn 7 will lift the self-weight lever 6 and slide upward along the guide rail A4 and the guide rail B9. At the same time, the self-weight of the self-weight lever 6 presses down on the yarn 7 to maintain the tension of the yarn 7.
[0022] As Figure 4 shown, when the winding device decelerates, the tension of the yarn 7 will decrease. The self-weight lever 6 slides downward along the guide rail A4 and the guide rail B9 by its own weight, and always maintains the pressure on the yarn 7 to keep the yarn 7 straight and maintain the tension of the yarn 7.
[0023] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model should be considered to fall within the protection scope of the present utility model.
Claims
1. A fiber winding self-weight tension maintaining device, characterized in that: The invention comprises a fixed base A (11) and a fixed base B (12) of the same structure, wherein a guide rail A (4) is fixedly plugged on the fixed base A (11), and a guide rail B (9) is fixedly plugged on the fixed base B (12), wherein the guide rail A (4) and the guide rail B (9) are both provided with fixed grooves (8), and pulleys (3) are both provided on the two fixed grooves (8), and a deadweight bar (6) for maintaining the tension of the yarn (7) is provided between the two fixed grooves (8), and installation bars are fixed on the tops of the guide rails A (4) and the guide rails B (9), and an inlet bar (1) is fixed on one end of the two installation bars, and an outlet bar (2) is fixed on the other end of the two installation bars.
2. A fiber winding self-weight tension maintaining device according to claim 1, characterized in that: A plurality of vertical rods for separating yarns (7) are fixed in parallel on the inlet rod (1) and the outlet rod (2), and the positions of the plurality of vertical rods on the inlet rod (1) and the outlet rod (2) correspond to each other one by one.
3. A fiber winding self-weight tension maintaining device according to claim 1, characterized in that: A buffer A (5) is fixed on one side of the fixed base A (11), and a buffer B (10) is fixed on one side of the fixed base B (12).
4. A fiber winding self-weight tension maintaining device according to claim 1, characterized in that: The two fixed grooves (8) are respectively slidably connected to the guide rail A (4) and the guide rail B (9) via pulleys (3).