Prepreg equipment
By combining multiple yarn spreading devices and yarn combining devices, the problem of insufficient spreading of fiber yarn bundles is solved, the fibers are evenly spread and fully impregnated, and the quality of the finished prepreg is improved.
Patent Information
- Application Number
- CN202422614928.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-29
AI Technical Summary
When there are many fiber yarn bundles, the width of the yarn spreading device is limited, resulting in the fibers not being fully spread out and agglomerating together, causing impregnation difficulties and affecting the quality of the finished prepreg.
Multiple yarn spreading devices are used to divide the fiber yarn bundles into multiple groups, and the composite dry cloth is combined into a composite cloth through a yarn combining device, and then soaked in a grease soaking device. Combined with the feeding device, limit assembly and vibrating yarn spreading roller and other structures, it ensures that the fibers are evenly spread and fully soaked.
The uniformity of fiber yarn expansion and the resin impregnation effect are improved, thereby improving the quality of prepreg products.
Smart Images
Figure CN223326755U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of fiber prepreg, and in particular to a prepreg equipment. Background Art
[0002] Prepreg is a composite of a resin matrix and reinforcements, created by impregnating continuous fibers with a resin matrix under specific conditions. In related art, fiber bundles must pass through a spreading device before entering the resin impregnation unit to spread the fibers and facilitate resin impregnation. However, when there are many fiber bundles, the spreading device has limited width. As the fiber bundles pass through the spreading device, some fibers are not fully spread out and clumping together, making impregnation difficult. Utility Model Content
[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a prepreg device that can improve the uniformity of fiber yarn spreading and the resin impregnation effect, thereby improving the quality of the finished product produced by the prepreg.
[0004] The prepreg equipment according to the embodiment of the present application includes: a yarn spreading device, a yarn combining device and a resin impregnation device.
[0005] A plurality of yarn spreading devices are provided, each yarn spreading device is used to pass a group of fiber yarn bundles, each group of fiber yarn bundles includes a plurality of fiber yarn bundles, and the yarn spreading device is used to spread the passed fiber yarn bundles to form a fiber dry cloth;
[0006] a yarn combining device, arranged at the rear side of the yarn spreading device, for combining the fiber dry fabrics output by a plurality of the yarn spreading devices to form a composite dry fabric;
[0007] A grease soaking device is used to pass through the composite dry cloth and soak the composite dry cloth with grease.
[0008] The prepreg equipment according to the embodiment of the present application has at least the following beneficial effects: a plurality of fiber yarn bundles are divided into a plurality of groups, and the plurality of fiber yarn bundles are respectively spread through a plurality of yarn spreading devices, so that the fiber yarn bundles are spread out better, and the problem of fiber agglomeration in the fiber yarn bundles is reduced or avoided, so that the spacing between the fibers in the formed fiber dry cloth is appropriate. Then, the fiber dry cloth formed by the plurality of fiber yarn bundles is combined together by a yarn combining device to form a composite dry cloth, so that the composite dry cloth reaches a preset fiber surface density. Since there is less or no fiber agglomeration in each fiber dry cloth, there is also less or no fiber agglomeration in the composite dry cloth formed thereby. Finally, the composite dry cloth is transferred to the resin impregnation device. Since there is also less or no fiber agglomeration in the composite dry cloth, the resin can fully impregnate the fibers in the composite dry cloth, thereby improving the quality of the finished prepreg.
[0009] According to some embodiments of the present application, a feeding device is further included, wherein the feeding device is used to output multiple groups of fiber yarn bundles to the yarn spreading device.
[0010] According to some embodiments of the present application, the feeding device includes multiple layers of feed components distributed in the height direction, and each layer of the feed components includes multiple feed rollers distributed in the horizontal direction, and the feed rollers are used to carry the yarn bundle rolls and to unwind the yarn bundles.
[0011] According to some embodiments of the present application, the feed roller is formed with a discharge position for releasing the yarn bundle; among the feed rollers in the same feed assembly, the discharge positions of the feed rollers are staggered or overlapped along the width direction.
[0012] According to some embodiments of the present application, a plurality of limiting components are further included, each of the limiting components corresponds to a feeding component, and the limiting components form a limiting channel, which is used to pass the fiber yarn bundle output by the feeding component and limit the fiber yarn bundle.
[0013] According to some embodiments of the present application, a plurality of limiting channels are formed on each of the limiting components, corresponding to the limiting components and the feeding components.
[0014] According to some embodiments of the present application, the limiting assembly includes a bottom rod and a plurality of sparse needles, the bottom rod extends along the width direction of the prepreg equipment, the sparse needles are arranged on the bottom rod and are spaced apart along the width direction of the bottom rod, and a limiting channel is formed between two adjacent sparse needles.
[0015] According to some embodiments of the present application, the yarn spreading device includes a driving member and a plurality of yarn spreading rollers, the plurality of yarn spreading rollers are distributed along the conveying direction of the fiber yarn bundle, and adjacent yarn spreading rollers are staggered along the height direction, the yarn spreading rollers are used to guide the fiber yarn bundle, and the driving member drives at least one of the yarn spreading rollers to make the yarn spreading roller vibrate.
[0016] According to some embodiments of the present application, the yarn combining device includes two nip rollers, and the fiber dry cloth is passed between the nip rollers.
[0017] According to some embodiments of the present application, an output device is further included, which is arranged between the yarn spreading device and the yarn combining device, and is used to output the release paper coated with the resin film to the yarn combining device.
[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:
[0020] Figure 1 This is a schematic structural diagram of the prepreg equipment according to an embodiment of the present application;
[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 This is a partial structural diagram of the prepreg equipment according to an embodiment of the present application;
[0023] Figure 4 This is a schematic structural diagram of the yarn spreading device of the prepreg equipment of an embodiment of the present application.
[0024] Reference numerals:
[0025] Feeding device 100, feeding assembly 110, feeding roller 111;
[0026] Limiting assembly 200, limiting channel 210, bottom rod 220, needle thinning 230, top rod 240; [Revision 21]
[0027] Yarn spreading device 300, driving member 310, yarn spreading roller 320;
[0028] Yarn combining device 400, nip roller 410;
[0029] Grease dipping device 500;
[0030] Winding device 600;
[0031] Output device 700;
[0032] Yarn bundle roll 810 , fiber yarn bundle 820 , fiber dry cloth 830 , composite dry cloth 840 , prepreg 850 , release paper 860 . DETAILED DESCRIPTION
[0033] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.
[0034] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.
[0035] In the description of this application, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.
[0036] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0037] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.
[0038] Reference Figure 1 and Figure 3 The prepreg equipment according to the embodiment of the present application includes: a yarn spreading device 300, a yarn combining device 400 and a grease impregnation device 500.
[0039] There are multiple yarn spreading devices 300, each of which is used to pass a group of fiber yarn bundles 820, each group of fiber yarn bundles 820 includes multiple fiber yarn bundles 820, and the yarn spreading device 300 is used to spread the passed fiber yarn bundles 820 to form a fiber dry cloth 830;
[0040] The yarn combining device 400 is disposed at the rear side of the yarn spreading device 300 and is used to combine the fiber dry fabrics 830 output by the multiple yarn spreading devices 300 to form a composite dry fabric 840;
[0041] The grease soaking device 500 is used to pass through the composite dry cloth 840 and soak the composite dry cloth 840 with grease.
[0042] It will be appreciated that each yarn spreading device 300 passes through a group of fiber yarn bundles 820, each group of fiber yarn bundles 820 comprising multiple fiber yarn bundles 820. The yarn spreading device 300 is capable of spreading the multiple fiber yarn bundles 820 passing through to form a fiber dry cloth 830. Multiple yarn spreading devices 300 form multiple fiber dry cloths 830. The multiple fiber dry cloths 830 are collectively transported to the yarn combining device 400, which is used to combine the multiple fiber dry cloths 830 and press them together to form a composite dry cloth 840. The composite dry cloth 840 enters the resin impregnation device 500, which impregnates the composite dry cloth 840 with resin to form a prepreg 850.
[0043] It should be understood that the multiple fiber yarn bundles 820 are divided into multiple groups, and the multiple fiber yarn bundles 820 are respectively spread through multiple yarn spreading devices 300 to effectively spread the fiber yarn bundles 820, reduce or avoid fiber agglomeration in the fiber yarn bundles 820, and ensure that the spacing between the fibers in the formed fiber dry cloth 830 is appropriate, allowing the resin to fully penetrate the fibers. The fiber dry cloth 830 formed by the multiple fiber yarn bundles 820 is then combined by the yarn combining device 400 to form a composite dry cloth 840, so that the composite dry cloth 840 reaches a predetermined fiber surface density. Since the fiber agglomeration in each fiber dry cloth 830 is minimal or absent, the resulting composite dry cloth 840 also has minimal or absent fiber agglomeration. Finally, the composite dry cloth 840 is transferred to the resin impregnation device 500. Since the fiber agglomeration in the composite dry cloth 840 is minimal or absent, the resin can fully penetrate the fibers in the composite dry cloth 840, thereby improving the quality of the finished prepreg 850.
[0044] Specifically, the yarn combining device 400 is disposed in the grease impregnation device 500 and performs grease impregnation while the fiber dry cloth 830 is being combined to form the composite dry cloth 840 .
[0045] Reference Figure 1 According to some embodiments of the present application, a feeding device 100 is further included, and the feeding device 100 is used to output multiple groups of fiber yarn bundles 820 to the yarn spreading device 300.
[0046] It can be understood that the feeding device 100 stores the yarn bundle roll 810 formed by winding the fiber yarn bundle 820, and the feeding device 100 is capable of unwinding the yarn bundle roll 810 to transport the fiber yarn bundle 820 to the yarn unwinding device 300.
[0047] Reference Figure 1 According to some embodiments of the present application, the feeding device 100 includes multiple layers of feed components 110 distributed along the height direction, and each layer of feed components 110 includes multiple feed rollers 111 distributed along the horizontal direction. The feed rollers 111 are used to carry yarn bundle rolls and to unwind yarn bundles.
[0048] It is understood that the feed rollers 111 in each layer of the feed assembly 110 can feed yarn bundles to a single or multiple yarn spreading devices 300. It is understood that the multiple yarn spreading devices 300 are distributed in the height direction, and the multiple layers of the feed assembly 110 are distributed in the height direction, which facilitates the selection of a feed assembly 110 at an appropriate height to feed the yarn spreading devices 300. Each layer of the feed assembly 110 includes multiple feed rollers 111, so that each layer of the feed assembly 110 can simultaneously feed multiple yarn bundles. The feed rollers 111 of each layer of the feed assembly 110 are distributed in the horizontal direction, which helps to reduce the height space occupied, avoid the equipment being too high, and achieve a reasonable layout.
[0049] Specifically, the feed rollers 111 in each layer of the feed assembly 110 feed a single yarn spreading device 300, which facilitates yarn transport and reduces the risk of yarn bundle interference. Of course, each yarn spreading device 300 can correspond to multiple layers of feed assemblies 110, with multiple layers of feed assemblies 110 feeding the same yarn spreading device 300 to meet product requirements.
[0050] Reference Figure 1 According to some embodiments of the present application, the feed roller 111 is formed with a discharge position for releasing the yarn bundle; among the feed rollers 111 within the same feed assembly 110, the discharge positions of the feed rollers 111 are staggered or overlapped along the width direction.
[0051] It is understood that a yarn bundle roll 810 is placed on the discharge position of each feed roller 111, and each feed roller 111 can unwind a fiber yarn bundle 820. Therefore, a feed assembly 110 can output multiple fiber yarn bundles 820 to the yarn unwinding device 300. In some embodiments, the discharge positions of multiple feed rollers 111 within the same feed assembly 110 are staggered along the width direction, so that the fiber yarn bundles 820 output by each feed roller 111 avoid each other, which facilitates the transmission of the fiber yarn bundles 820 and prevents interference between the fiber yarn bundles 820. In other embodiments, the discharge positions of multiple feed rollers 111 within the same feed assembly 110 may overlap.
[0052] Reference Figure 1 and Figure 2 According to some embodiments of the present application, a plurality of limiting components 200 are further included, each limiting component 200 corresponds to a feeding component 110, and the limiting component 200 forms a limiting channel 210, which is used to pass the fiber yarn bundle 820 output by the feeding component 110 and limit the fiber yarn bundle 820.
[0053] It can be understood that each feeding component 110 corresponds to a limiting component 200, and the feeding component 110 outputs multiple fiber yarn bundles 820 through the limiting channel 210, and the width of the fiber yarn bundles 820 is limited by the limiting channel 210. Each limiting component 200 corresponds to a yarn spreading device 300, and the multiple fiber yarn bundles 820 will enter the yarn spreading device 300 after passing through the limiting channel 210. Therefore, the limiting component 200 can help control the width of the fiber dry cloth 830.
[0054] Reference Figure 1 and Figure 2 According to some embodiments of the present application, a plurality of limiting channels 210 are formed on each limiting component 200 .
[0055] It is understandable that the multiple limiting channels 210 can improve the arrangement effect of the fiber yarn bundle 820, reduce the risk of entanglement of the fiber yarn bundle 820, and facilitate the subsequent yarn spreading device 300 to spread the yarn.
[0056] It is understandable that a plurality of limiting channels 210 are formed on each limiting assembly 200 , so that one limiting assembly 200 can limit a plurality of fiber yarn bundles 820 through the plurality of limiting channels 210 , so that the fiber yarn bundles 820 are subsequently spread evenly.
[0057] In some embodiments, the limiting channel 210 of the limiting assembly 200 corresponds one-to-one to the feed roller 111 of the corresponding feed assembly 110, that is, each feed roller 111 can transport a fiber yarn bundle 820 into the limiting channel 210, and limit the width of a fiber yarn bundle 820 through a limiting channel 210, so that the width of each fiber yarn bundle 820 that is subsequently expanded is uniform.
[0058] In other embodiments, the number of the limiting channels 210 of the limiting assembly 200 may be more or less than the corresponding feed rollers 111 of the feed assembly 110, so that the feed rollers 111 and the limiting channels 210 can be matched according to actual needs.
[0059] Reference Figure 2 According to some embodiments of the present application, the limiting assembly 200 includes a bottom rod 220 and a plurality of sparse needles 230. The bottom rod 220 extends along the width direction of the prepreg equipment. The sparse needles 230 are arranged on the bottom rod 220 and are spaced apart along the width direction of the bottom rod 220. A limiting channel 210 is formed between two adjacent sparse needles 230.
[0060] It is understandable that when each fiber yarn bundle 820 passes through the limiting assembly 200, it will pass between the two thinning needles 230, and the thinning needles 230 will limit the width of the fiber yarn bundle 820 and its position in the width direction, and the fiber yarn bundle 820 will be supported by the bottom rod 220.
[0061] Specifically, it also includes a top rod 240, a bottom rod 220 connected to the bottom of the sparse needle 230, and a top rod 240 connected to the top of the sparse needle 230. The fiber yarn bundle 820 is supported by the bottom rod 220, the width of the fiber yarn bundle 820 is limited by the sparse needle 230, and the fiber yarn bundle 820 is restricted from escaping from the limiting channel 210 by the top rod 240.
[0062] Reference Figure 4 According to some embodiments of the present application, the yarn spreading device 300 includes a driving member 310 and a plurality of yarn spreading rollers 320. The plurality of yarn spreading rollers 320 are distributed along the conveying direction of the fiber yarn bundle 820, and adjacent yarn spreading rollers 320 are staggered along the height direction. The yarn spreading rollers 320 are used to guide the fiber yarn bundle 820. The driving member 310 drives at least one yarn spreading roller 320 to make the yarn spreading roller 320 vibrate.
[0063] It is understood that the fiber yarn bundle 820 is wound around the spreading rollers 320 and passes between them, with the spreading rollers 320 guiding the fiber yarn bundle 820 during transport. Because adjacent spreading rollers 320 are staggered in height, the fiber yarn bundle 820 is guided and positioned by the spreading rollers 320 on both the upper and lower sides of the fiber yarn bundle 820 as it passes through two adjacent spreading rollers 320, thereby facilitating the transport of the fiber yarn bundle 820. At least one of the spreading rollers 320 is driven by the drive member 310 to vibrate, which in turn drives the fiber yarn bundle 820 to vibrate, spreading the fibers within the fiber yarn bundle 820 and achieving a spreading effect.
[0064] In some other embodiments, yarn spreading may also be performed by other means, such as ultrasonic yarn spreading, air flow yarn spreading, electrostatic yarn spreading, vacuum air flow yarn spreading and other mechanism yarn spreading.
[0065] Reference Figure 3 According to some embodiments of the present application, the yarn combining device 400 includes two nip rollers 410 , and the fiber dry cloth 830 is passed between the nip rollers 410 .
[0066] It is understandable that the plurality of dry fiber cloths 830 will pass between the two nip rollers 410 so as to be pressed together by the two nip rollers 410 and thus the dry fiber cloths 830 are composited.
[0067] Reference Figure 3 According to some embodiments of the present application, an output device 700 is further included. The output device 700 is arranged between the yarn spreading device 300 and the yarn combining device 400. The output device 700 is used to output the release paper 860 coated with the resin film to the yarn combining device 400.
[0068] It is understood that the output device 700 is used to output the release paper 860 coated with a resin film, allowing the release paper 860 and the plurality of dry fiber cloths 830 to enter the yarn combining device 400 for composite formation. Specifically, the output device 700 outputs two release papers 860, so that the upper and lower sides of the composite dry fiber cloth 840 are composited with a layer of release paper 860 to protect and define the shape of the composite dry fiber cloth 840.
[0069] Reference Figure 1 and Figure 3 According to some embodiments of the present application, a winding device 600 is further included. The composite dry cloth 840 forms a prepreg 850 after passing through the grease impregnation device 500. The winding device 600 is used to wind up the prepreg 850.
[0070] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.
Claims
1. Prepreg equipment, characterized in that, include: A plurality of yarn spreading devices are provided, each yarn spreading device is used to pass a group of fiber yarn bundles, each group of fiber yarn bundles includes a plurality of fiber yarn bundles, and the yarn spreading device is used to spread the passed fiber yarn bundles to form a fiber dry cloth; a yarn combining device, arranged at the rear side of the yarn spreading device, for combining the fiber dry fabrics output by a plurality of the yarn spreading devices to form a composite dry fabric; A grease soaking device is used to pass through the composite dry cloth and soak the composite dry cloth with grease.
2. The prepreg equipment according to claim 1, characterized in that It also includes a feeding device, which is used to output multiple groups of fiber yarn bundles to the yarn spreading device.
3. The prepreg equipment according to claim 2, characterized in that The feeding device includes multiple layers of feeding components distributed in the height direction. Each layer of the feeding components includes multiple feeding rollers distributed in the horizontal direction. The feeding rollers are used to carry the yarn bundle coils and unwind the yarn bundles.
4. The prepreg equipment according to claim 3, characterized in that The feed roller is formed with a discharge position for discharging the yarn bundle; among the feed rollers in the same feed assembly, the discharge positions of the feed rollers are staggered or overlapped along the width direction.
5. The prepreg equipment according to claim 4, characterized in that It also includes a plurality of limiting components, each of which corresponds to a feeding component, and the limiting components form a limiting channel, which is used to pass the fiber yarn bundle output by the feeding component and limit the fiber yarn bundle.
6. The prepreg equipment according to claim 5, characterized in that A plurality of limiting channels are formed on each of the limiting components.
7. The prepreg equipment according to claim 5, characterized in that The limiting assembly includes a bottom rod and a plurality of sparse needles. The bottom rod extends along the width direction of the prepreg equipment. The sparse needles are arranged on the bottom rod and are spaced apart along the width direction of the bottom rod. A limiting channel is formed between two adjacent sparse needles.
8. The prepreg equipment according to claim 1, characterized in that The yarn spreading device includes a driving member and multiple yarn spreading rollers. The multiple yarn spreading rollers are distributed along the conveying direction of the fiber yarn bundle, and adjacent yarn spreading rollers are staggered along the height direction. The yarn spreading rollers are used to guide the fiber yarn bundle. The driving member drives at least one of the yarn spreading rollers to make the yarn spreading roller vibrate.
9. The prepreg equipment according to claim 1, characterized in that The yarn combining device comprises two nip rollers, and the fiber dry cloth is passed between the nip rollers.
10. The prepreg equipment according to claim 1, characterized in that The invention also includes an output device, which is arranged between the yarn spreading device and the yarn combining device, and is used to output the release paper coated with the resin film to the yarn combining device.