Composite material wet winding fiber infiltration device
By designing a composite wet-winding fiber wetting device and adopting multiple sets of glue-scraping devices and rolling wheel structures, the problem of incomplete wetting of fiber yarn during wet-winding is solved, significantly reducing product defects and improving product strength.
Patent Information
- Application Number
- CN202421493639.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-27
AI Technical Summary
During the wet winding process of existing composite materials, the resin wetting effect of the fiber yarn is incomplete, resulting in defects such as dry yarn in the product. Especially in resins with short gel time, uniform diffusion cannot be achieved in a short process time.
A composite wet-winding fiber wetting device is designed, and at least two sets of glue-scraping devices are used to ensure that the fiber yarn is fully wet through the secondary glue-soaking method, and the friction with the fiber yarn is reduced through the form of a rolling wheel to reduce the frequency of yarn breakage.
It effectively solves the problem of poor wetting effect of resin with short production process time, reduces product defects and increases product strength.
Smart Images
Figure CN223030354U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of composite material winding, in particular to a wet winding fiber infiltration device for composite materials. Background Art
[0002] Fiber-reinforced composite winding rods can overcome the problems faced by traditional concrete and steel rods in construction, use, maintenance, and environmental protection. They have the advantages of high strength, light weight, high corrosion resistance, and convenient transportation. At the same time, their later maintenance cost is low, especially in areas with harsh environments, and they have broad engineering application value. The infiltration device is of great significance during the winding process of composite rods.
[0003] Winding molding is an important molding process in the production of composite materials. During the wet winding process, the fiber infiltration device is the key equipment for realizing composite material winding.
[0004] With the continuous development of the winding process, the winding machine and the matching dipping device have been gradually improved. The existing glue tanks are mainly divided into two types. One is a horizontal glue tank, where the fiber yarn needs to completely sink to the bottom of the glue tank to complete resin infiltration. The second is a drum-type glue tank, which requires a large-diameter round roller. As the round roller rotates, the resin is adhered to the round roller from the glue tank, and the fiber yarn is dipped on the upper surface of the round roller to complete resin infiltration. However, in both the first and the second types, the resin infiltration of the fiber yarn is not complete.
[0005] During the winding process, the fiber yarn needs to pass through the dipping device to make the resin infiltrate the fiber yarn, then pass through the scraping device to extrude the excess resin, and finally wind it onto the core mold. However, often the fiber yarn cannot be completely infiltrated in the infiltration device. It is necessary to wait until the fiber yarn is wound onto the core mold, and the resin continues to slowly diffuse for secondary infiltration to completely infiltrate the fiber yarn. The existing dipping devices are often suitable for resins with a longer gel time. If resins with a fast gel and a short process time are used, after passing through the dipping device and winding onto the mold surface, the resin does not have enough time to uniformly diffuse, resulting in defects such as dry yarn in the product.
[0006] Therefore, there is an urgent need for an infiltration device for fiber winding at present to ensure full infiltration of the fiber yarn and solve problems such as dry yarn defects. Summary of the Utility Model
[0007] The purpose of the utility model is to solve the above problems, provide a wet winding fiber infiltration device for composite materials, which can effectively solve the problem of poor infiltration effect of resins with a short production process time, reduce product defects, and increase the strength of the product.
[0008] To achieve the above purpose, the utility model adopts the following technical solutions:
[0009] A wet winding fiber infiltration device for a composite material, comprising a glue tank support, on which a glue tank baffle is provided, and along the length direction of the glue tank baffle, a tension roller, at least two groups of glue scraping and impregnating devices, a guide roller and a glue tank support are successively arranged;
[0010] The glue scraping and impregnating device is arranged in the glue tank.
[0011] There are two groups of glue scraping and impregnating devices. One group of glue scraping and impregnating devices includes a glue scraping device and an impregnating device. Between the tension roller and the guide roller, there are successively a first glue scraping device, a first impregnating device, a second glue scraping device and a second impregnating device.
[0012] The overall shape of the glue tank is a W shape with a flat bottom, including two slopes inclined to the right and two slopes inclined to the left. The top of the middle slope inclined to the left and the slope inclined to the right intersect, and the tops of the two slopes inclined to the right and the two slopes inclined to the left on both sides respectively extend outwards to form a plane;
[0013] The lowest points of the slopes inclined to the right and the slopes inclined to the left are connected by a plane to form a first glue tank and a second glue tank; the first impregnating device and the second impregnating device are respectively arranged in the first glue tank and the second glue tank; the first glue scraping device and the second glue scraping device are respectively arranged on the two slopes inclined to the left.
[0014] The structures of the first impregnating device and the second impregnating device are the same, and they are hollow trapezoidal platforms;
[0015] On both sides of the first impregnating device along the width direction of the first glue tank are isosceles trapezoidal flat plates. Round holes are opened at the four vertex positions of the first impregnating device. The two corresponding round holes above the two sides are fixedly connected by a first round rod, and the protruding parts on both sides are connected to the grooves opened on the glue tank baffle; the two corresponding round holes below the two sides are inserted and connected by a second round rod and can rotate.
[0016] The structures of the first glue scraping device and the second glue scraping device are the same. The two sides are glue scraping baffles. The bottom of the glue scraping baffle is connected by two sliding glue scraping plates, and the upper part is connected by a glue scraping plate.
[0017] The glue scraping baffle includes a square block. On one side, there is a protruding cuboid for connecting with the grooves on the two sides of the glue tank baffle. On the other side, there is a chute, and above the chute, there is a threaded positioning pin for connecting with a sliding block.
[0018] The sliding block is a right-angled block, which is stuck in the chute. In the middle of one right-angled side, there is a round hole for passing through the positioning pin, and the other right-angled side is fixedly connected to the glue scraping plate.
[0019] The tension roller includes two parallel and equal third round rods, and the two ends are respectively fixed by metal strips;
[0020] One side of the metal strip at one end is connected to the third round rod, and the other side is connected to the fourth round rod for fixing on the glue tank baffle; one side of the metal strip at the other end is connected to the third round rod, and the other side is connected to the fifth round rod for fixing on the glue tank baffle and then connected to the circular iron plate.
[0021] A plurality of round holes are provided on the iron plate.
[0022] Advantages of the present utility model:
[0023] The present utility model is provided with at least two sets of glue scraping and dipping devices, which changes the characteristic that the fiber yarn is only wetted once, and adopts the method of secondary dipping to ensure that the fiber yarn is fully wetted.
[0024] The contact position between the dipping device and the fiber yarn is converted into the form of a rolling wheel, so as to reduce the friction force with the fiber yarn, thereby reducing the tension of the fiber yarn and reducing the frequency of broken yarns.
[0025] The method of secondary glue scraping and applying tension can reduce the resin content.
[0026] This wetting device reduces the defects of the product and increases the strength of the product. Description of the drawings
[0027] Figure 1 Is the front view of the present utility model;
[0028] Figure 2 Is the top view of the present utility model;
[0029] Figure 3 Is the axonometric view of the present utility model;
[0030] Figure 4 Is the left view of the present utility model;
[0031] Figure 5 Is the structural schematic diagram of the glue tank;
[0032] Figure 6 Is the structural schematic diagram of the first dipping device;
[0033] Figure 7 Is the structural schematic diagram of the first glue scraping device;
[0034] Figure 8 Is the structural schematic diagram of the glue scraping baffle;
[0035] Figure 9 Is the structural schematic diagram of the tension roller;
[0036] Among them, 1 - glue tank bracket; 2 - glue tank baffle; 3 - tension roller; 3.1 - third round rod; 3.2 - metal strip; 3.3 - fourth round rod; 3.4 - iron plate; 3.5 - fifth round rod; 3.4.1 - round hole; 4.1 - first glue scraping device; 4.1.1 - glue scraping baffle; 4.1.2 - sliding block; 4.1.3 - glue scraping plate; 4.1.4 - sliding glue scraping plate; 4.1.5 - cuboid; 4.1.6 - chute; 4.1.7 - positioning pin; 4.1.8 - round hole; 5.1 - first glue dipping device; 5.1.1 - first round rod; 5.1.2 - second round rod; 5.1.3 - isosceles trapezoidal flat plate; 4.2 - second glue scraping device; 5.2 - second glue dipping device; 6 - glue tank; 6.1 first glue tank; 6.2 second glue tank; 7 - guide roller; 8 - glue tank support. Detailed implementation mode
[0037] The following further describes a wetting device for fiber winding of the present utility model in conjunction with the drawings and embodiments.
[0038] A wetting device for fiber winding, as Figures 1-4 shown, includes a glue tank bracket 1; a glue tank baffle 2; a tension roller 3; a first glue scraping device 4.1; a first glue dipping device 5.1; a second glue scraping device 4.2; a second glue dipping device 5.2; a glue tank 6; a guide roller 7; a glue tank support 8.
[0039] As Figure 1 and Figure 3 shown, the glue tank bracket 1 is located at the bottom of the wetting device and serves as the support for the entire device; the length is 1200 - 1800 mm, preferably 1300 mm; the width is 400 - 500 mm, preferably 450 mm; the height is 200 - 300 mm, preferably 240 mm; the metal square tubes in the length and width directions are welded into a rectangular bracket; the metal square tube supports in the height direction are welded at the four vertices; 2 metal square tubes in the width direction are welded inside the rectangular bracket, parallel to the width direction of the rectangular bracket and with equal length.
[0040] As Figure 1 and Figure 3 shown, the glue tank baffle 2 is located above the metal square tube in the rectangular length direction of the glue tank bracket 1, with a total of 2 pieces. Grooves for installing the tension roller 3, the first glue scraping device 4.1, the first glue dipping device 5.1, the second glue scraping device 4.2, the second glue dipping device 5.2 and the guide roller 7 are provided at the corresponding positions of the 2 glue tank baffles 2.
[0041] As Figure 3 and Figure 4 shown, the glue tank support 8 is located above the rightmost side of the glue tank bracket 1 and is connected to the two glue tank baffles 2, and the height is half of that of the glue tank baffle 2.
[0042] As Figure 5As shown, the glue tank 6 is bent and welded from a 2 - 4 mm steel plate, preferably a 2 mm thick steel plate. The overall shape is like a W. The height of the glue tank 6 is 150 - 200 mm, preferably 152 mm, the width is 400 - 500 mm, preferably 400 mm, and the total length is 1200 - 1500 mm, preferably 1290 mm. The lowest plane is composed of two dipping glue tanks, the first glue tank 6.1 and the second glue tank 6.2, which are located at the lowest point of the W, with a length of 200 - 300 mm, preferably 220 mm. On both sides of the length direction of the dipping glue tank are slopes with a certain angle, and the two slopes in the middle intersect. At both ends are planes extending 50 - 100 mm outward from the W. On both sides in the width direction of the glue tank 6 are conforming metal flat plates, which seal all parts of the glue tank 6 except the upper part to prevent the glue liquid from flowing out of the glue tank 6.
[0043] As Figure 2 and Figure 3 shown, the guiding roller 7 is located on the rightmost side of the glue tank 6 and is a round rod made of metal. The length of the round rod is 360 - 390 mm, preferably 390 mm, the diameter is 30 - 40 mm, preferably 32 mm. At both ends, rectangular bodies are extended so that it can be connected to the grooves of the glue tank baffles 2 on both sides, playing a guiding role for the fiber yarn to enter the second glue tank 6.2, enabling the fiber yarn to enter the glue tank for dipping one by one clearly.
[0044] As Figure 3 and Figure 6 shown, the structures of the first dipping device 5.1 and the second dipping device 5.2 are the same. They are hollow trapezoidal platforms placed above the first glue tank 6.1 and the second glue tank 6.2, which are the two dipping glue tanks at the lowest plane of the glue tank 6. As Figure 6 shown, on both sides of the first dipping device 5.1 in the width direction of the glue tank are isosceles trapezoidal flat plates 5.1.3. There are round holes with a diameter of 20 mm at the four vertex positions of the first dipping device 5.1. The two corresponding round holes above both sides are welded and connected with a first round rod 5.1.1 with a diameter of 20 mm and a length of 440 mm. The protruding parts on both sides are connected to the grooves opened on the glue tank baffle 2. The two corresponding round holes below both sides are inserted and connected with a second round rod 5.1.2 with a diameter of 20 mm so that it can rotate with the fiber in and out, reducing the friction between the fiber yarn and the first dipping device 5.1, thereby reducing the tension and avoiding yarn breakage.
[0045] As shown in the appendix Figure 2 and Figure 7 shown, the glue scraping device consists of four parts, namely the glue scraping baffle 4.1.1, the sliding block 4.1.2, the sliding glue scraping plate 4.1.4 and the glue scraping plate 4.1.3. The sliding glue scraping plate 4.1.4 is composed of 2 parallel rectangular metal strips, with a length of 380 mm, a width of 20 mm, and a thickness of 7 mm. Both sides are welded and connected to the glue scraping baffle 4.1.1.
[0046] The squeegee plate 4.1.3 is a rectangular metal strip with a length of 340 m, a width of 20 mm, and a thickness of 7 mm. It is welded to the sliding stoppers 4.1.2 on both sides.
[0047] The squeegee baffle 4.1.1 is a square metal block. As Figure 7 and Figure 8 shown, on one side, there is a protruding cuboid 4.1.5 that enables it to be connected to the grooves on both sides of the glue trough baffle 2. On the other side, there is a chute 4.1.6, and above the chute, there is a positioning pin 4.1.7 with threads for connecting to the sliding stopper 4.1.2.
[0048] The sliding stopper 4.1.2 is a right-angled metal block. As Figure 7 shown, in the middle of one side, there is a round hole 4.1.8. The other side is welded to the squeegee plate 4.1.3 and is stuck in the chute 4.1.6 of the squeegee baffle 4.1.1. By adjusting the height at which the sliding stopper 4.1.2 is lifted, the applied force can be adjusted, thereby changing the amount of glue scraped. The first squeegee device 4.1 is installed above the slope of the first glue trough 6.1 near the tension roller 3.
[0049] As Figure 9 shown, the tension roller 3 includes two parallel and equal third round bars 3.1, which are connected by a rectangular metal strip 3.2 at both ends. The two third round bars 3.1 are of equal size and the center distance is 50 mm. On one side of the rectangular metal strip 3.2 at one end, it is connected to the third round bar 3.1, and on the other side, a smaller fourth round bar 3.3 is welded for fixing to the glue trough baffle 2. On one side of the rectangular metal strip 3.2 at the other end, it is connected to the third round bar 3.1, and after connecting to a smaller fifth round bar 3.5 on the other side, a circular iron plate 3.4 with a diameter of 100 mm is welded, and at the concentric circle with a diameter of 75 mm on the iron plate, round holes 3.4.1 with a diameter of 9 mm are evenly distributed.
[0050] An impregnation method of an impregnation device for fiber winding. The fiber passes above the guide roller 7 and enters above the second glue trough 6.2, passes below the second impregnation device 5.2, passes through the second squeegee device 4.2 (entering from above the sliding squeegee plate and exiting from below the squeegee plate, and then passing through above the sliding squeegee plate), continues to pass below the first impregnation device 5.1, passes through the first squeegee device 4.1 (the same as the second squeegee device), then passes through the tension roller 3, and finally is wound onto the mandrel.
[0051] Among them, the guiding roller 7 plays a guiding role for the fiber yarn to enter the second glue tank 6.2, which can control the position of the fiber yarn and enable the fiber yarn to enter the second glue tank 6.2 for dipping one by one clearly. The functions of the first glue tank 6.1 and the second glue tank 6.2 are to completely soak the fiber yarn. Moreover, the second round roller 5.1.2 under the first dipping device 5.1 and the second dipping device 5.2 is in a rotatable form, which can significantly improve the phenomenon of excessive tension of the fiber yarn and reduce the yarn breakage of the fiber yarn.
[0052] The second glue scraping device can scrape off the excess resin of the dipped fiber yarn through the dislocation of the glue scraping plate and the sliding glue scraping plate and apply a certain tension. The subsequent secondary dipping and glue scraping can effectively improve the wettability of the fiber yarn, make the fiber yarns bond more closely, eliminate a large number of air bubbles inside the fiber yarn, reduce the defects inside the composite material, and thus improve the mechanical properties of the product.
[0053] The function of the tension roller 3 is to change the angle between the fiber yarn and the tension roller by rotating the tension roller, change the pressure of the fiber yarn on the tension roller, and thus change the frictional force of the fiber yarn, and finally increase or decrease the tension of the fiber yarn. One of the corresponding round holes on the tension roller is the hole position fixed to the glue tank baffle 2 after the tension roller rotates, and it can be fastened by bolts.
[0054] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation on the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.
Claims
1. A composite material wet winding fiber impregnation device, characterized in that: It comprises a glue groove bracket, on which a glue groove baffle is provided, and on which a tension roller, at least two sets of glue scraping and dipping devices, a guide roller and a glue groove support are sequentially provided along the length direction; The glue scraping and dipping device is arranged in the glue tank.
2. A composite material wet winding fiber impregnation device as claimed in claim 1, characterized in that: Two groups of glue scraping and dipping devices are provided, and the first glue scraping device, the first glue dipping device, the second glue scraping device and the second glue dipping device are arranged between the tension roller and the guide roller in sequence.
3. A composite material wet winding fiber impregnation device as claimed in claim 2, characterized in that: The glue groove is in a W-shape with a flat bottom, including two slopes inclined to the right and two slopes inclined to the left, the top of the middle slope inclined to the left and the top of the slope inclined to the right are connected, and the tops of the slopes inclined to the right and the slopes inclined to the left on both sides extend outward to form planes; The lowest points of the right-inclined slope and the left-inclined slope are connected by a plane to form a first glue groove and a second glue groove; the first glue dipping device and the second glue dipping device are respectively arranged in the first glue groove and the second glue groove; the first glue scraping device and the second glue scraping device are respectively arranged on two left-inclined slopes.
4. A composite material wet winding fiber impregnation device as claimed in claim 2, characterized in that: The first dipping device and the second dipping device have the same structure, which is a hollow trapezoidal platform; The first glue dipping device is provided with isosceles trapezoidal flat plates on both sides along the width direction of the first glue groove. Circular holes are provided at the four vertices of the first glue dipping device. The two corresponding circular holes on the upper sides are fixedly connected by a first round stick, and the protruding parts on both sides are connected to the grooves opened on the glue groove baffle; the two corresponding circular holes on the lower sides are connected by inserting a second round stick and can rotate.
5. A composite material wet winding fiber impregnation device as claimed in claim 2, characterized in that: The first scraper device and the second scraper device have the same structure, with scraper baffles on both sides. The bottom of the scraper baffle is connected by two sliding scraper plates, and the top is connected by a scraper plate.
6. A composite material wet winding fiber impregnation device as claimed in claim 5, characterized in that: The scraper baffle comprises a square block, one side of which is provided with a protruding cuboid for connecting with the grooves of the glue groove baffles on both sides, and the other side is provided with a slide groove, and a threaded positioning pin for connecting with the sliding block is provided above the slide groove.
7. A composite material wet winding fiber impregnation device as claimed in claim 6, characterized in that: The sliding stopper is a right-angle block, which is stuck in the slide groove, wherein a circular hole for passing the positioning pin is provided in the middle of one right-angle side, and the other right-angle side is fixedly connected to the scraper plate.
8. A composite material wet winding fiber impregnation device as claimed in claim 1, characterized in that: The tension roller comprises two parallel and equal third round rods, both ends of which are fixed by metal strips; One side of the metal strip at one end is connected to the third round stick, and the other side is connected to the fourth round stick fixed on the glue groove baffle; one side of the metal strip at the other end is connected to the third round stick, and the other side is connected to the fifth round stick fixed on the glue groove baffle and then connected to the round iron plate.
9. A composite material wet winding fiber impregnation device as claimed in claim 8, characterized in that: The iron plate is provided with a plurality of circular holes.