A fiber winding impregnation device

Abstract

This utility model proposes a fiber winding impregnation device, belonging to the field of fiber impregnation technology. It solves the problems of incomplete impregnation of yarn bundles, insufficient glue, and poor yarn spreading that are common in existing fiber impregnation equipment. It includes a tensioning frame, an impregnation tank, and guide rollers. Two guide rollers are symmetrically installed below the tensioning frame. The impregnation tank is located below the guide rollers and has a U-shaped design. The bottom of the guide rollers is located within the U-shaped impregnation tank. A fixing frame is installed on the outer side of the tensioning frame, and two support rollers are installed above the side frame, located on opposite sides of the tensioning frame. Glue-blocking plates are provided on both sides of the impregnation tank. It is mainly used for impregnating fiber yarn bundles.

Description

Technical Field

[0001] This utility model belongs to the field of fiber impregnation technology, and in particular relates to a fiber winding impregnation device. Background Technology

[0002] Fiber impregnation is an important process requirement for fiber winding. Impregnation can be carried out continuously during the winding process or after the fiber is wound. With the updating and improvement of production technology, in order to improve production efficiency and product quality, most products now adopt the process method of continuous fiber impregnation during the winding process.

[0003] In the winding process, fiber impregnation devices mostly use the glue tank roller impregnation method for continuous impregnation. For fibers with fewer filaments and smaller diameters, the impregnation effect can meet the requirements of normal production processes. However, for fibers with taller filaments and larger diameters, when the winding speed is high, phenomena such as incomplete impregnation of the yarn, insufficient glue, and poor yarn spreading are prone to occur during the winding process. This situation leaves a high quality risk for the product, such as gaps, delamination, and debonding caused by insufficient glue and poor yarn spreading. Utility Model Content

[0004] In view of this, the present invention aims to provide a fiber winding impregnation device to solve the problems of incomplete impregnation of yarn bundles, insufficient glue, and poor yarn spreading that are common in existing fiber impregnation equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fiber winding and impregnation device includes a tensioning frame, an impregnation tank, and guide rollers. Two guide rollers are symmetrically installed below the tensioning frame, and the impregnation tank is located below the guide rollers.

[0007] Furthermore, the impregnation tank has a U-shaped design.

[0008] Furthermore, the bottom of the guide roller is located inside a U-shaped impregnation tank.

[0009] Furthermore, a fixing frame is installed on the outer side of the tensioning frame.

[0010] Furthermore, two support rollers are installed above the side frame, with the two support rollers located on both sides of the tensioning frame.

[0011] Furthermore, baffles are provided on both sides of the impregnation tank.

[0012] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention adopts an underwater impregnation method. The yarn bundle is submerged below the liquid surface of the impregnation tank by a guide roller. While the yarn bundle is submerged, the fiber impregnation length is increased by adjusting the yarn path, which greatly improves the fiber penetration rate and optimizes the yarn spreading effect. During high-speed winding, the high-bundle, large-diameter fibers have a higher glue load and better penetration effect. During high-tension winding, there is no dry yarn phenomenon on the product surface. At the same time, after the yarn bundle falls onto the product, uniform glue is squeezed out from the sheet-like spreading fibers, thereby achieving the fiber impregnation penetration rate and yarn spreading. During the winding process, the glue baffle plate ensures the fiber bundle glue penetration and yarn spreading while significantly reducing the amount of glue used. After curing, the product undergoes flaw detection and no phenomena such as gaps, delamination, or debonding are found. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a fiber winding and impregnation device according to the present invention;

[0015] Figure 2 This is a side view of a fiber winding and impregnation device according to the present invention.

[0016] In the picture:

[0017] 1-Glue baffle, 2-Tensioning frame, 3-Fixing frame, 4-Glue dipping tank, 5-Guide roller, 6-Support roller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0019] Detailed Implementation Method 1: See Figure 1-2 This embodiment describes a fiber winding impregnation device, characterized in that it includes a tensioning frame 2, an impregnation tank 4, and guide rollers 5. Two guide rollers 5 are symmetrically installed below the tensioning frame 2. The impregnation tank 4 is located below the guide rollers 5 and has a U-shaped design. The bottom of the guide rollers 5 is located inside the U-shaped impregnation tank 4. A fixing frame 3 is installed on the outside of the tensioning frame 2.

[0020] The guide roller 5 presses the yarn bundle below the liquid surface of the impregnation tank 4, ensuring that a certain length of fiber is completely immersed in the winding adhesive during the winding process. At the same time, by adjusting the yarn path, the fiber impregnation length is increased, and the yarn bundle is spread out when passing through the guide roller, further increasing the fiber impregnation contact area, thereby improving the fiber impregnation and yarn spreading effect.

[0021] Using an underwater impregnation method, the yarn bundle is immersed below the liquid surface of the impregnation tank 4 via the guide roller 5. While the yarn bundle is immersed, the fiber impregnation length is increased by adjusting the yarn path. The guide roller 5 widens the yarn, which greatly improves the fiber penetration rate and optimizes the yarn spreading effect. During high-speed winding, the high fiber bundle and large diameter fiber have a higher glue content and better penetration effect. During high-tension winding, there is no dry yarn phenomenon on the surface of the shell. At the same time, after the yarn bundle falls onto the shell, uniform glue is squeezed out from the sheet-like spread yarn fibers, thereby achieving the fiber impregnation penetration rate and yarn spreading.

[0022] Furthermore, the tensioning frame 2 is bolted on, making it easy to replace tensioning frames 2 with different tensions, thus making the device suitable for different working conditions.

[0023] Detailed Implementation Method 2: See Figure 1-2 In this embodiment, two support rollers 6 are installed above the side frame 1. The two support rollers 6 are located on both sides of the tensioning frame 2, and can provide a certain tensioning effect on the yarn bundle.

[0024] Detailed implementation method 3: See Figure 1-2 In this embodiment, baffle plates 1 are provided on both sides of the impregnation tank 4. During the winding process, the baffle plates 1 ensure that the fiber bundle is thoroughly impregnated with adhesive and the yarn is unwound, while significantly reducing the amount of adhesive used. After curing, the product undergoes flaw detection, and no gaps, delamination, or detachment are found.

[0025] Detailed Implementation Method Four: See [link] Figure 1-2 This embodiment describes a method where, on the same equipment, 12 spools of yarn are used, with a tension of 600N, the same linear speed, and the same yarn splitting. The glue control device remains fixed. Conventional glue tank roller dipping devices and submerged glue dipping devices are used to wind the same product. After curing, test specimens are prepared for comparison. The comparison method is as follows:

[0026] Method 1: Visual comparison of the amount of adhesive carried on the fiber with conventional impregnation equipment.

[0027] Conventional impregnation device: Visually, when the yarn is unwound from the winding shell, not much glue is squeezed out, some yarns have no glue, the glue content is low, and the yarn width is 30mm.

[0028] Submersible impregnation device: Visually, when the yarn is unwound from the winding shell, a large amount of glue is squeezed out and it is relatively uniform, with no dry yarn or insufficient glue. The yarn width is 32.

[0029] Method 2: Comparison of data with the fiber volume detection of the specimen wound using a conventional impregnation device.

[0030] Conventional impregnation equipment: Specimens prepared by winding using conventional impregnation equipment, fiber volume data: mean 63.01%.

[0031] Submersible impregnation apparatus: The fiber volume data of the specimens prepared by winding using the submersible impregnation apparatus is as follows: average value 57.21%, which is better than the test data of specimens prepared by conventional impregnation apparatus.

[0032] Method 3: Comparison of adhesive content with that of specimens wrapped using conventional impregnation equipment.

[0033] Conventional impregnation apparatus: The specimens prepared by winding using a conventional impregnation apparatus have an average glue content of 27.78%.

[0034] Submersible impregnation apparatus: The specimens prepared by winding using the submersible impregnation apparatus had an average glue content of 32.43%, which is higher than that of specimens prepared using conventional impregnation apparatus.

[0035] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A fibre-winding impregnation device, characterised in that: It includes a tensioning frame (2), an impregnation tank (4), and guide rollers (5). Two guide rollers (5) are symmetrically installed below the tensioning frame (2). The impregnation tank (4) is located below the guide rollers (5). The impregnation tank (4) is U-shaped, and the bottom of the guide rollers (5) is located inside the U-shaped impregnation tank (4).

2. The fiber winding impregnation device according to claim 1, characterized in that: A fixing frame (3) is installed on the outside of the tensioning frame (2).

3. The fiber winding impregnation device according to claim 1, characterized in that: The tensioning frame (2) has two symmetrical support rollers (6) on both sides, and the support rollers (6) are installed above the side frame (1).

4. The fiber winding impregnation device according to claim 1, characterized in that: Both sides of the impregnation tank (4) are provided with baffles.

Images