A rolling device for three-dimensional glass fiber reinforced composite materials

Abstract

The utility model discloses a kind of three-dimensional glass fiber reinforced composite's rolling device, including bearing frame, the inside of bearing frame is equipped with multiple lower rolling parts, the inside of bearing frame is provided with multiple upper rolling rollers, the upper surface of bearing frame is equipped with multiple adjusting mechanisms, the bottom end of each adjusting mechanism is equipped with detachable mechanism, the detachable mechanism includes two arc bases, the upper surface of each arc base is fixedly connected with multiple screw pegs.The utility model is through detachable mechanism by arc base, with cover plate, screw peg realizes the quick fixing and disassembly of rolling roller, without separating bearing seat, only need to unscrew main and vice fastening nut can take out old roller, install new roller, single roller replacement time is greatly shortened, to adapt to different coating, different diameter of rolling roller, without customizing special component, change type flexibility significantly improves, realize quick disassembly and change roller, greatly improve change type efficiency.

Description

Technical Field

[0001] This application relates to the field of composite material molding equipment technology, and in particular to a rolling device for three-dimensional glass fiber reinforced composite materials. Background Technology

[0002] In the molding processes of glass fiber reinforced composites (such as GFRP), such as hand lay-up and vacuum infusion, three-dimensional glass fiber reinforced composites are increasingly widely used in high-end manufacturing fields due to their high specific strength, corrosion resistance, and lightweight properties. Due to the three-dimensional interwoven fiber structure of three-dimensional glass fiber reinforced composites, rolling and compacting the lay-up is a key process. The rolling process can eliminate air bubbles during the molding process and ensure that the resin fully impregnates the fibers.

[0003] The rolling process for forming three-dimensional glass fiber reinforced composite materials can achieve interlayer compaction, thickness control, and surface smoothing through rolling. However, due to different applications, three-dimensional glass fiber reinforced composite materials need to be adapted to different rolling requirements. For example, thin sheets require low-pressure precision pressing, while thick structural components require high-pressure pre-pressing. Some materials require elastically wrapped rollers to prevent fiber damage. Traditional rolling devices often use integrated bearing seats or multiple sets of bolts for connection. When changing different types of rolling rollers, it is necessary to disassemble the entire bearing seat or unscrew multiple bolts one by one. Moreover, the replacement of a single roller is time-consuming, resulting in extremely low changeover efficiency, which is difficult to meet the production needs of multi-variety, small-batch composite materials. Therefore, to solve the above problems, we provide a rolling device for three-dimensional glass fiber reinforced composite materials. Utility Model Content

[0004] The purpose of this invention is to provide a rolling device for three-dimensional glass fiber reinforced composite materials to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions: A rolling device for three-dimensional glass fiber reinforced composite materials includes a support frame, with multiple lower rolling components installed inside the support frame and multiple upper rolling rollers inside the support frame. Multiple adjustment mechanisms are installed on the upper surface of the support frame, and each adjustment mechanism has a detachable mechanism at its bottom end. Each detachable mechanism includes two arc-shaped bases, with multiple screws fixedly connected to the upper surface of each arc-shaped base. Each arc-shaped base has a cover plate above it, and each screw has a main fastening nut and a secondary fastening nut on its outer surface. Each adjustment mechanism includes an electric push rod fixedly connected to the support frame, and a transmission link is fixedly connected to the output end of each electric push rod. The bottom end of each transmission link is connected to the arc-shaped base. Each upper rolling roller, from left to right, is a pre-pressing roller, a main pressing roller, and a fine pressing roller.

[0006] Preferably, each of the upper rollers can be installed inside the arc-shaped base and the cover plate with an opening, and the bottom surface of the supporting frame is fixedly connected to a bottom bracket.

[0007] Preferably, a strain gauge pressure sensor is fixedly installed at one end of each of the upper rollers, a controller is installed on the front of the support frame, and each strain gauge pressure sensor is electrically connected to the controller via a wire.

[0008] Preferably, each of the lower rolling elements includes a support base, a geared motor is fixedly connected to the upper surface of each support base, a lower rolling roller is fixedly connected to the output end of each geared motor, and each lower rolling roller is located below the upper rolling roller.

[0009] Preferably, the inner wall of the support frame is provided with multiple guide grooves, and the interior of each guide groove is connected to a detachable mechanism via a slider.

[0010] Preferably, the outer surface of the support frame is provided with a plurality of square openings, and the square openings do not affect the up and down movement of the detachable mechanism. One of the upper rollers is covered with a thick elastic silicone layer, one of the upper rollers is covered with an elastic coating layer, and the other upper roller is covered with a thick fluororubber layer.

[0011] Preferably, a reinforcing rod is fixedly connected to the upper surface of each of the arc-shaped bases, and one end of each reinforcing rod is fixedly connected to the outer surface of the transmission connecting rod.

[0012] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects: I. The rolling device for this three-dimensional glass fiber reinforced composite material uses a detachable mechanism to quickly fix and disassemble the rolling rollers via an arc-shaped base, a cover plate with an opening, and screws. It eliminates the need to separate the bearing housing; simply unscrew the main and auxiliary fastening nuts to remove the old roller and install the new one. This significantly shortens the single-roller replacement time, adapting to rolling rollers with different coating layers and diameters. No custom-made components are required, greatly improving changeover flexibility and enabling rapid disassembly and roller replacement. This significantly improves changeover efficiency and effectively solves the problem of having to disassemble the entire bearing housing or unscrew multiple bolts individually when changing different types of rolling rollers, resulting in long single-roller replacement times and extremely low changeover efficiency.

[0013] II. The rolling device for this three-dimensional glass fiber reinforced composite material can precisely control the downward pressure of the upper rolling roller, i.e., the rolling pressure, through the electric push rod of the adjustment mechanism. In conjunction with the strain gauge pressure sensor, the roller surface pressure is fed back in real time. The controller forms a closed-loop control to avoid excessive pressure damaging the glass fiber or insufficient pressure causing interlayer loosening. The guide groove and reinforcing rod ensure that the rolling roller always remains parallel and without skewing. After rolling, the thickness tolerance of the composite material is reduced and the interlayer bonding strength is improved. It can achieve precise pressure adjustment and ensure the rolling quality. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 The following is a frontal three-dimensional structural schematic diagram of the rolling device for three-dimensional glass fiber reinforced composite materials of this utility model; Figure 2 Here is a side view of the rolling device for the three-dimensional glass fiber reinforced composite material of this utility model. Figure 3 See: A side view of the adjusting mechanism in the rolling device for the three-dimensional glass fiber reinforced composite material of this utility model; Figure 4 See: A side sectional view of the load-bearing frame in the rolling device for the three-dimensional glass fiber reinforced composite material of this utility model; Figure 5 The diagram shows the connection structure between the upper roller and the detachable mechanism in the rolling device for the three-dimensional glass fiber reinforced composite material of this utility model. Figure 6 For: the rolling device of the three-dimensional glass fiber reinforced composite material of this utility model Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Bearing frame; 2. Base support; 3. Controller; 4. Adjustment mechanism; 41. Electric push rod; 42. Transmission link; 5. Detachable mechanism; 51. Arc-shaped base; 52. Cover plate; 53. Screw; 54. Main fastening nut; 55. Secondary fastening nut; 6. Lower rolling element; 61. Support seat; 62. Gear motor; 63. Lower rolling roller; 7. Strain gauge pressure sensor; 8. Upper rolling roller; 9. Guide groove; 10. Square opening; 11. Reinforcing rod. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0018] Please see Figure 1-6 This utility model provides a technical solution for a rolling device for three-dimensional glass fiber reinforced composite materials: A rolling device for three-dimensional glass fiber reinforced composite materials includes a support frame 1, with multiple lower rolling components 6 installed inside the support frame 1 and multiple upper rolling rollers 8 inside the support frame 1. Multiple adjusting mechanisms 4 are installed on the upper surface of the support frame 1, and each adjusting mechanism 4 has a detachable mechanism 5 at its bottom end. The detachable mechanism 5 includes two arc-shaped bases 51, with multiple screws 53 fixedly connected to the upper surface of each arc-shaped base 51. Each arc-shaped base 51 has a cover plate 52 with openings, and the surface of the cover plate 52 has through holes adapted to the screws 53. Each screw 53 has a main fastening nut 54 and a secondary fastening nut 55 on its outer surface. Each adjusting mechanism 4 includes an electric push rod 41 fixedly connected to the support frame 1, and a transmission connecting rod 42 fixedly connected to the output end of each electric push rod 41. The bottom end of each transmission connecting rod 42 is connected to the arc-shaped base 51. Each upper rolling roller 8, from left to right, is a pre-pressing roller, a main pressing roller, a lower pressing roller, and a lower pressing roller. Specifically, when replacing the rollers, workers only need to unscrew the corresponding main and auxiliary fastening nuts 55, remove the cover plate 52, pull out the old roller, install the new roller, replace the cover plate, and tighten the nuts. The entire process requires no bearing disassembly, improving replacement efficiency. Furthermore, the outer surface of the bearing frame 1 has multiple square openings 10, which do not affect the vertical movement of the detachable mechanism 5. One of the upper rollers 8 has a thick elastic silicone layer on its outer surface. The surface is covered with an elastic coating layer, and the outer surface of the other upper roller 8 is covered with a thick fluororubber layer. The thick elastic silicone layer on the surface of the pre-press roller can initially smooth the fiberglass fabric and remove surface air bubbles. The elastic coating layer of the main roller can be covered with thick polyurethane, which can adapt to the three-dimensional fiberglass concave and convex structure. The thick fluororubber coating of the precision roller can assist in rapid shaping and prevent deformation. The upper rollers 8 with different coating layers can adapt to various needs and reduce equipment investment. The square opening 10 provides ample space for the detachable mechanism 5 to move. In this embodiment, each upper rolling roller 8 can be installed inside the arc-shaped base 51 and the cover plate 52. The bottom surface of the support frame 1 is fixedly connected to the bottom bracket 2. One end of each upper rolling roller 8 is fixedly installed with a strain gauge pressure sensor 7. The front of the support frame 1 is installed with a controller 3. Each strain gauge pressure sensor 7 is electrically connected to the controller 3 through a wire. Specifically, the arc-shaped base 51 and the cover plate 52 form a semi-enclosed fixation, which ensures the stability of the rolling roller installation and avoids the disassembly problem of the integrated structure. The bottom bracket 2 enhances the overall rigidity of the support frame 1, avoids the rolling roller from shifting due to device vibration during rolling, and ensures rolling stability. The strain gauge pressure sensor 7 collects the roller surface pressure of the upper rolling roller 8 in real time and feeds the data back to the controller 3. If the pressure exceeds the preset threshold, the controller 3 automatically drives the electric push rod 41 to finely adjust the height of the upper roller to avoid fiberglass breakage. If the pressure is insufficient, it automatically increases the pressure to ensure interlayer compaction.

[0019] In this embodiment, each lower rolling element 6 includes a support base 61, and a reduction motor 62 is fixedly connected to the upper surface of each support base 61. A lower rolling roller 63 is fixedly connected to the output end of each reduction motor 62. Each lower rolling roller 63 is located below the upper rolling roller 8. Multiple guide grooves 9 are provided on the inner wall of the bearing frame 1. The interior of each guide groove 9 is connected to a detachable mechanism 5 via a slider. A reinforcing rod 11 is fixedly connected to the upper surface of each arc-shaped base 51, and one end of each reinforcing rod 11 is fixedly connected to the outer surface of the transmission connecting rod 42. Specifically, the reduction motor 6 of the lower rolling element 6... 2. The lower roller 63 is driven to rotate actively, cooperating with the upper roller 8 to avoid feeding jams caused by insufficient friction of thick three-dimensional glass fiber composite materials. The lower roller 63 and the upper roller 8 correspond vertically to ensure that the material is subjected to uniform force during rolling, without any local uncompacted areas. The guide groove 9 cooperates with the slider to restrict the detachable mechanism 5 to move only in the vertical direction, preventing the arc-shaped base 51 from tilting due to force when the electric push rod 41 adjusts the pressure, ensuring that the upper roller 8 is always parallel to the lower roller 63. The reinforcing rod 11 enhances the connection strength between the transmission connecting rod 42 and the arc-shaped base 51, preventing the connection from loosening due to long-term rolling.

[0020] Working principle: First, check whether the reduction motor 62 of the lower rolling part 6 is normal, whether the covering layer of the upper rolling roller 8 is intact and without damage or aging, and whether the strain gauge pressure sensor 7 is clean. Confirm that the signal connection between the controller 3, the electric push rod 41, and the sensor is normal. When it is necessary to replace the roller, unscrew the main fastening nut 54 and the secondary fastening nut 55 corresponding to the roller to be replaced, remove the cover plate 52 with the opening, release the fixation of the old roller, pull out the old roller, put the new roller with the corresponding coating layer and diameter into the slot of the arc-shaped base 51, cover it with the cover plate 52, and tighten the main nut and the secondary nut in sequence to ensure that it is secure and avoid loosening; Start the equipment under no-load operation and observe that the operation of the upper roller 8 and the lower roller 63 is normal. According to the type of three-dimensional glass fiber composite material to be processed, place one end of the three-dimensional glass fiber composite material blank, such as prepreg or dry fiber felt, between the upper roller 8 and the lower roller 63, ensuring that the material edge is aligned with the equipment baseline. Then, start the reduction motor 62 of the lower roller 6 and the pressure adjustment system of the upper roller 8. The lower roller 63 rotates actively to drive the material forward, and the upper roller 8 presses down at the set pressure under the drive of the electric push rod 41. The pre-pressing process is completed in sequence to remove interlayer air, the main pressure, and the fine pressing to make the surface flat. The strain gauge pressure sensor 7 provides real-time pressure feedback, and the controller 3 automatically fine-tunes to ensure stable pressure.

[0021] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rolling device for three-dimensional glass fiber reinforced composite materials, comprising a support frame (1), wherein a plurality of lower rolling elements (6) are installed inside the support frame (1), characterized in that: The bearing frame (1) is provided with multiple upper rollers (8) inside. Multiple adjustment mechanisms (4) are installed on the upper surface of the bearing frame (1). Each adjustment mechanism (4) is provided with a detachable mechanism (5) at its bottom end. The detachable mechanism (5) includes two arc-shaped bases (51). Multiple screws (53) are fixedly connected to the upper surface of each arc-shaped base (51). Each arc-shaped base (51) is provided with a cover plate (52) above it. Each screw (53) is provided with a main fastening nut (54) and a secondary fastening nut (55) on its outer surface. Each adjustment mechanism (4) includes an electric push rod (41) fixedly connected to the bearing frame (1). Each electric push rod (41) is fixedly connected to a transmission link (42) at its output end. The bottom end of each transmission link (42) is connected to the arc-shaped base (51). Each upper roller (8) is arranged from left to right as a pre-pressing roller, a main pressing roller, and a fine pressing roller.

2. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 1, characterized in that: Each of the upper rollers (8) can be installed inside the arc-shaped base (51) and the cover plate (52), and the bottom surface of the bearing frame (1) is fixedly connected to the bottom bracket (2).

3. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 2, characterized in that: Each of the upper rollers (8) is fixedly equipped with a strain gauge pressure sensor (7) at one end, and a controller (3) is installed on the front of the bearing frame (1). Each strain gauge pressure sensor (7) is electrically connected to the controller (3) through a wire.

4. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 1, characterized in that: Each of the lower rollers (6) includes a support base (61), and a geared motor (62) is fixedly connected to the upper surface of each support base (61). A lower roller (63) is fixedly connected to the output end of each geared motor (62), and each lower roller (63) is located below the upper roller (8).

5. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 1, characterized in that: The inner wall of the supporting frame (1) is provided with a plurality of guide grooves (9), and the interior of each guide groove (9) is connected to the detachable mechanism (5) by a slider.

6. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 1, characterized in that: The outer surface of the bearing frame (1) is provided with a plurality of square openings (10), and the square openings (10) do not affect the up and down movement of the detachable mechanism (5). One of the upper rollers (8) is covered with a thick elastic silicone layer, one of the upper rollers (8) is covered with an elastic coating layer, and the other upper roller (8) is covered with a thick fluororubber layer.

7. The rolling device for a three-dimensional glass fiber reinforced composite material according to claim 1, characterized in that: Each of the arc-shaped bases (51) has a reinforcing rod (11) fixedly connected to its upper surface, and one end of each reinforcing rod (11) is fixedly connected to the outer surface of the transmission connecting rod (42).

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