A fiberglass epoxy cylinder winding system

Abstract

This utility model relates to a fiberglass epoxy cylinder winding system, including a trolley with a pressing bracket hinged to the trolley extending towards the winding roller. A rolling roller is hinged to the pressing bracket and presses against the winding roller. An unwinding roller is also provided above the pressing bracket, and a guide roller is provided on the bracket for unwinding the fabric and allowing the fiberglass bundle to pass through. In use, after the resin-impregnated fiberglass bundle is wound onto the winding roller, the rolling roller presses against it. The weight of the pressing bracket and the rolling roller rolls the winding roller, winding the polyester fabric from the unwinding roller onto the winding layer. The polyester fabric is then rolled again using the rolling roller for smoothing. By utilizing rolling and surface winding of the polyester fabric for process control, the winding layer is smoothed using the rolling roller. Then, the polyester fabric is wound onto the outer surface and smoothed again using the rolling roller, thus eliminating secondary processing and saving costs.

Description

Technical Field

[0001] This utility model relates to the field of fiber bundle winding, and more particularly to the field of glass fiber bundle winding technology, specifically referring to a fiberglass epoxy cylinder winding system. Background Technology

[0002] Fiberglass winding technology is widely used in the manufacture of cylindrical structural components such as pipes, storage tanks, and gas cylinders, offering advantages such as lightweight, high strength, and corrosion resistance. In the traditional wet winding process for cylindrical fiberglass products, the inner wall of the winding cylinder is bonded to the mold, and no further processing is required after curing and demolding. However, the outer diameter is formed by winding glass yarn mixed with resin, resulting in glass yarn winding marks and fuzzing on the surface. This leads to poor surface smoothness and roughness, requiring secondary machining such as turning and grinding on the outer surface of the product after demolding to meet requirements.

[0003] Secondary processing has significant drawbacks: it is costly, requiring specialized equipment and tools, and incurring labor and energy consumption. It also results in material waste, as processing removes some reinforcing fibers and resin, reducing material utilization. Furthermore, it carries risks of damage: processing can damage the integrity of the fiber structure, introducing microcracks that affect the long-term performance and lifespan of the product, such as fatigue, creep, and stress corrosion, extending the production cycle, and generating dust and debris that pollute the environment. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a fiberglass epoxy cylinder winding system. The system utilizes roller pressing and surface winding with polyester fabric for process control of the surface. Roller pressing is used to flatten the winding layer, and then polyester fabric is wound around the outer surface and flattened again with roller pressing. This eliminates secondary processing and saves costs.

[0005] This utility model is achieved through the following technical solution: a fiberglass epoxy cylinder winding system, including a trolley located between the winding roller and the yarn frame and moving circumferentially along the winding roller, a pressing bracket extending toward the winding roller is hinged on the trolley, a rolling roller pressing on the winding roller is hinged on the pressing bracket, an unwinding roller is also provided above the pressing bracket, and a guide roller for unwinding the rolled cloth and glass fiber bundles to pass around is provided on the bracket.

[0006] In use, after the impregnated glass fiber bundle is wound onto the winding roller, the pressing bracket is rotated to press the rolling roller onto the winding roller. The weight of the pressing bracket and the rolling roller is used to roll the winding roller, similar to when the glass fiber bundle is wound onto the winding roller. The carriage moves along the axial direction of the winding roller, and the winding roller rotates. The rolling roller flattens the winding layer on the winding roller. Then, the rolling roller is moved away from the winding roller, and the polyester fabric on the unwinding roller is wrapped around the guide roller and wound onto the winding layer. The rolling roller is then used to roll the polyester fabric again to flatten it. Thus, by using rolling and surface winding of polyester fabric for process control, the winding layer is flattened by the rolling roller, and then the polyester fabric is wrapped around the outer surface and flattened by the rolling roller again. This eliminates secondary processing and saves costs.

[0007] Preferably, the pressing bracket includes pressure plates located on both sides of the rolling roller and axially connected to the rolling roller. The pressure plates are respectively axially connected to the vertical plate. The pressure plates are provided with first positioning holes, and positioning pins inserted into the first positioning holes are connected to the vertical plate.

[0008] In use, the two pressure plates are rotated to make the rolling rollers contact or disengage. When the pressure plate rotates upward and the first positioning hole rotates to the side of the vertical plate, the positioning pin inserted into the vertical plate is inserted into the first positioning hole, thereby fixing the pressure plate on the vertical plate and thus fixing the rolling rollers and the pressure plate.

[0009] Preferably, the pressing bracket is also connected to a handle, and the rolling roller is located between the handle and the trolley.

[0010] This preferred solution, by setting up a lever, makes it easy for workers to manually press the lever, thereby increasing the pressure of the rolling roller on the winding roller.

[0011] Preferably, the trolley is also provided with an impregnation tank located between the pressing bracket and the yarn frame. The impregnation tank is provided with two impregnation rollers arranged along the direction of glass fiber bundle movement. The trolley is also provided with an extrusion rod group and a second yarn comb located between the impregnation tank and the guide roller and arranged sequentially along the direction of glass fiber bundle movement. An arc-shaped yarn separating nozzle is also provided between the guide roller and the winding roller.

[0012] In this preferred embodiment, the glass fiber bundles on the yarn frame are guided by the impregnation rollers and pass through the impregnation tank for impregnation. After impregnation, the excess glue is removed by the extrusion rod group, and then the bundles are wound onto the winding roller after passing through the guide rollers and the sand separator, thereby achieving the winding of the glass fiber bundles onto the winding roller.

[0013] Preferably, the sand-dispensing nozzle is located on the fixed plate, the frame of the guide roller is detachably connected to the fixed plate, two support plates are provided on both sides of the fixed plate, the support plates have grooves on the side near the winding roller, and side ears inserted into the grooves are fixedly connected to the fixed plate. The other end of the support plate is hinged to the vertical plate through a first rotating shaft. The vertical plate is also provided with an adjustment device for adjusting the tilt angle of the support plate. A winding rod located between the fixed plate and the guide roller and for unwinding the rolled cloth is also shafted onto the frame.

[0014] This preferred solution, through the setting of the adjustment device, facilitates the adjustment of the tilt angle of the support plate and the fine adjustment of the tension of the glass fiber bundle and polyester cloth. At the same time, through the setting of the side ear insertion groove, it is easy to assemble and disassemble the fixing plate and the support plate. Through the setting of the winding rod, the unwound cloth passes through the middle of the yarn separator after passing around the winding rod, so that the unwound cloth does not contact the arc-shaped bottom surface of the yarn separator.

[0015] Preferably, the adjusting device includes a plurality of mounting holes evenly arranged circumferentially with the first rotating shaft as the center, and the support plate is threaded with fixing bolts that are threadedly connected to the mounting holes.

[0016] This preferred solution adjusts the tilt angle of the support plate by fixing bolts to the threaded connection of mounting holes at different positions.

[0017] Preferably, the lower end of the guide roller is provided with a support rod mounted on the frame, and the support rod supports a guide groove extending towards the impregnation tank. The end of the guide groove away from the impregnation tank is in contact with the fixed plate, and the height of the support rod is higher than the height of the impregnation tank.

[0018] This preferred solution, through the setting of the guide channel, facilitates the return of excess glue to the impregnation tank, making glue recycling easier. At the same time, the end of the guide channel away from the impregnation tank is connected to the fixing plate, so that when the glass fiber bundle passes through the splitting nozzle, the glue remaining on the splitting nozzle can also flow into the guide channel.

[0019] Preferably, the guide roller includes a first extrusion roller and a second extrusion roller arranged in sequence, with the unwound fabric and glass fiber bundle passing around the lower end of the first extrusion roller and exiting from the upper end of the second extrusion roller.

[0020] In use, this preferred embodiment further removes the adhesive from the glass fiber bundles by setting up a first extrusion roller and a second extrusion roller.

[0021] Preferably, the extrusion rod assembly includes a third extrusion roller located directly above the impregnation tank, and the glass fiber bundle and unwound fabric pass over the third extrusion roller and then over the guide roller.

[0022] This preferred solution, through the positioning of the extrusion rod assembly, facilitates the return of excess glue to the dipping tank.

[0023] The beneficial effects of this utility model are as follows: After the impregnated glass fiber bundle is wound onto the winding roller, the pressing bracket is rotated so that the rolling roller presses onto the winding roller. The weight of the pressing bracket and the rolling roller is used to roll the winding roller, just like when the glass fiber bundle is wound onto the winding roller. The carriage moves along the axial direction of the winding roller, the winding roller rotates, and the rolling roller flattens the winding layer on the winding roller. Then the rolling roller is moved away from the winding roller, and then the polyester fabric on the unwinding roller is wrapped around the guide roller and wound onto the winding layer. The rolling roller is then used to roll the polyester fabric again to flatten it. Thus, by using the rolling and surface winding of polyester fabric to control the surface process, the rolling roller is used to flatten the winding layer, and then the polyester fabric is wrapped around the outer surface and then rolled flattened with the rolling roller, thereby eliminating secondary processing and saving costs. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional schematic diagram of the unwinding roller structure of this utility model during unwinding; Figure 3 This is a three-dimensional schematic diagram of the glass fiber bundle impregnation process of the present invention. Figure 4 This is a three-dimensional schematic diagram of the pressing bracket of this utility model. Figure 5 This is an exploded view of the pressing bracket of this utility model; Figure 6 This is an exploded view of the fixing plate of this utility model; Figure 7 This is a schematic diagram of the rolling process of the rolling roller of this utility model; As shown in the figure: 1. Outer frame, 2. Drive motor, 3. Winding roller, 4. Slide rail, 6. Trolley, 7. Glass fiber bundle, 8. Yarn frame, 61. First yarn comb, 62. Impregnation tank, 63. Impregnation roller, 64. Third extrusion roller, 65. Second yarn comb, 66. Support plate, 671. Side lug, 672. Fixing plate, 673. Divider nozzle, 674. First extrusion roller, 675. Support rod, 676. Winding rod, 677. Frame, 679. Second extrusion roller, 91. Unwinding roller, 92. Vertical plate, 96. Third shaft, 97. Pressure plate, 98. Handle, 911. Second positioning hole, 912. Mounting hole, 913. Assembly hole of the first shaft, 933. Roller, 926. Groove, 971. First positioning hole. Detailed Implementation

[0025] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0026] See attached document Figure 1-6 This utility model discloses a fiberglass epoxy cylinder winding system, including a horizontally arranged yarn frame 8, a trolley 6, and a winding roller 3. The winding roller 3 is longitudinally oriented. The stripped fiber bundles on the yarn frame 8 are conveyed from front to back and wound onto the winding roller 3. The winding roller 3 is axially connected to an outer frame 1, which is existing technology. The outer frame 1 is equipped with a drive motor 2 that drives the winding roller 3 to rotate. The trolley 6 is slidably connected to a longitudinally extending slide rail 4, which is existing technology.

[0027] The trolley 6 is equipped with a first comb 61, a glue-impregnating tank 62, a second comb 65, a guide roller, and a fixing plate 672 arranged sequentially from front to back. The glue-impregnating tank 62 is also equipped with two glue-impregnating rollers 63 arranged along the direction of glass fiber bundle movement. Between the rearmost glue-impregnating roller 63 and the second comb 65, there is a glue-extruding rod assembly located at the top of the glue-impregnating tank 62. The glue-extruding rod assembly includes a third glue-extruding roller 64 that is shaft-connected to the trolley 6.

[0028] The trolley 6 is provided with two vertical plates 92 arranged longitudinally. The vertical plates 92 are located at the rear end of the second comb 65. The top surface of the two vertical plates 92 is provided with a U-shaped limiting groove. A second rotating shaft is inserted into the two limiting grooves. The circumferential surface of the second rotating shaft is machined with cutting surfaces that extend along its axial direction and are arranged opposite to each other. The distance between the two cutting surfaces is adapted to the width of the limiting groove, thereby restricting the rotation of the rotating shaft relative to the vertical plate 92.

[0029] A unwinding roller 91 is rotatably connected to the second rotating shaft, and polyester fabric is wound on the unwinding roller 91. A support plate 66 extending toward the winding roller 3 is also axially connected to the vertical plate 92 via the first rotating shaft. The vertical plate 92 is also provided with an adjustment device for adjusting the tilt angle of the support plate 66. The adjustment device includes a plurality of mounting holes 912 evenly arranged circumferentially with the first rotating shaft as the center. The support plate 66 is threaded with fixing bolts that are threadedly connected to the mounting holes 912.

[0030] The support plate 66 has a U-shaped groove 926 on one end of the vertical plate 92, i.e., the rear end face of the support plate 66. A fixing plate 672 is provided between the two grooves 926. A side lug 671 inserted into the groove 926 is fixed to the fixing plate 672. The circumferential surface of the side lug 671 is machined with cutting surfaces that extend axially and are arranged opposite each other. The distance between the two cutting surfaces is adapted to the width of the groove 926, thereby restricting the rotation of the shaft relative to the vertical plate 92. The support plate 66 is inclined from front to back and from bottom to top, thereby enabling the support plate 66 to support the fixing plate 672.

[0031] The fixed plate 672 has a yarn separating nozzle with an arc-shaped bottom surface. The fixed plate 672 is also fixedly connected to a frame 677 located in front of the fixed plate 672. The guide roller is shafted on the frame 677. The first extrusion roller 674 and the second extrusion roller 679 are arranged sequentially on the guide roller. The unwound cloth and glass fiber bundle pass around the lower end of the first extrusion roller 674 and exit from the upper end of the second extrusion roller 679. The first extrusion roller 674 is located in front of the second extrusion roller 679.

[0032] The frame 677 is also equipped with a support rod 675 located directly below the second extrusion roller 679. The support rod 675 supports a guide groove extending towards the impregnation tank. The height of the support rod 675 is higher than the height of the impregnation tank. The guide groove extends obliquely from back to front and from top to bottom. A guide plate is supported on the support rod 675. The top surface of the guide plate has two longitudinally arranged baffles. The top surface of the guide plate also has a rear plate located at the rear end of the guide plate and connecting the two baffles. The rear plate is in contact with the front end face of the fixed plate 672. The guide groove is formed between the two baffles, the rear plate, and the guide plate.

[0033] The frame 677 is also connected to a winding rod 676 located between the guide roller and the fixed plate 672. The winding rod 676 is higher than the bottom surface of the yarn separator 673 and lower than the top surface of the yarn separator.

[0034] A pressing bracket extending towards the winding roller 3 is hinged to the trolley 6. A rolling roller 933 pressing on the winding roller 3 is hinged to the pressing bracket. The pressing bracket includes pressure plates 97 located on both sides of the rolling roller 933 and axially connected to the rolling roller 933. The pressure plates 97 are respectively axially connected to the vertical plate 92. The pressure plates 97 are provided with a first positioning hole 971, and a second positioning hole is provided on the vertical plate 92. A positioning pin inserted into the first positioning hole 971 is connected in the second positioning hole 911. During rolling, the pressing bracket and the weight of the rolling roller 933 provide the extrusion force for extrusion.

[0035] The pressing bracket is also connected to a handle 98 located at the rear end of the roller 933. That is, a handle 98 is provided between the two pressure plates 97 and is hinged to both pressure plates 97. The roller 933 is located between the handle 98 and the trolley 6. The front ends of the two pressure plates 97 are fixed to the third rotating shaft 96. The two ends of the third rotating shaft 96 are respectively rotatably connected to the two vertical plates 92.

[0036] In use, the winding roller 3 is driven to rotate, and the trolley 6 is driven to move longitudinally. The glass fiber bundle passes through the yarn frame 8, the first yarn comb 61, the first dip roller 63, the second dip roller 63, the third extrusion roller 64, the first extrusion roller 674, the second extrusion roller 679, and the yarn separating nozzle before being wound onto the winding roller 3. When the number of winding turns is reached, the pin is pulled out, and the pressure plate 97 rotates downward under the action of gravity, so that the rolling roller 933 presses against the winding roller 3. The winding roller 3 is rolled by the weight of the pressing bracket and the rolling roller 933, just like when the glass fiber bundle is wound onto the winding roller 3. The trolley 6 moves along the axial direction of the winding roller 3, and the winding roller 3 rotates. The rolling of the rolling roller 933 makes the winding layer on the winding roller 3 flat. Then, the pressure plate 97 is rotated upward and fixed to the vertical plate 92 using a pin. The polyester fabric on the unwinding roller 91 is passed around the third extrusion roller 64, the first extrusion roller 674, the second extrusion roller 679, and the winding rod 676, and then passes through the middle of the sand separator 673 and is wound onto the winding roller 3. The carriage 6 moves along the axial direction of the winding roller 3, and the winding roller 3 rotates. After the polyester fabric is wound, the rolling roller 933 is pressed into contact with the winding roller 3 again for rolling and flattening. Thus, the surface is controlled by using rolling and surface winding of polyester fabric. The rolling roller 933 is used to roll and flatten the winding layer. Then, the polyester fabric is wrapped around the outer surface and rolled and flattened again by the rolling roller 933, thereby eliminating secondary processing and saving costs.

[0037] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A fiberglass epoxy cylinder winding system, comprising a trolley (6) located between a winding roller (3) and a yarn frame (8) and moving circumferentially along the winding roller (3), characterized in that: The trolley (6) is hinged to a pressing bracket extending toward the winding roller (3), and the pressing bracket is hinged to a rolling roller (933) pressing on the winding roller (3). Above the pressing bracket is a unwinding roller (91), and the bracket is provided with a guide roller for unwinding the rolled cloth and glass fiber bundle to pass around.

2. The fiberglass epoxy cylinder winding system according to claim 1, characterized in that: The pressing bracket includes pressure plates (97) located on both sides of the rolling roller (933) and axially connected to the rolling roller (933). The pressure plates (97) are respectively axially connected to the vertical plate (92). The pressure plates (97) are provided with first positioning holes (971), and positioning pins inserted into the first positioning holes (971) are connected to the vertical plate (92).

3. The fiberglass epoxy cylinder winding system according to claim 1, characterized in that: The pressing bracket is also connected to a handle (98), and the rolling roller (933) is located between the handle (98) and the trolley (6).

4. The fiberglass epoxy cylinder winding system according to claim 2, characterized in that: The trolley (6) is also provided with an impregnation tank (62) located between the pressing bracket and the yarn frame (8). The impregnation tank (62) is provided with two impregnation rollers (63) arranged along the direction of glass fiber bundle movement. The trolley (6) is also provided with an extrusion rod group and a second yarn comb (65) arranged sequentially between the impregnation tank (62) and the guide roller along the direction of glass fiber bundle movement. An arc-shaped yarn separating nozzle (673) is also provided between the guide roller and the winding roller (3).

5. The fiberglass epoxy cylinder winding system according to claim 4, characterized in that: The yarn separating nozzle (673) is located on the fixed plate (672). The frame (677) of the guide roller is detachably connected to the fixed plate (672). Two support plates (66) are provided on both sides of the fixed plate (672). The support plate (66) has a groove (926) on its side near the winding roller (3). The fixed plate (672) has a side ear (671) inserted into the groove (926). The other end of the support plate (66) is hinged to the vertical plate (92) through the first rotating shaft. The vertical plate (92) is also provided with an adjustment device for adjusting the tilt angle of the support plate (66). The frame (677) is also axially connected to a winding rod (676) located between the fixed plate (672) and the guide roller for unwinding the rolled fabric.

6. The fiberglass epoxy cylinder winding system according to claim 5, characterized in that: The adjustment device includes a plurality of mounting holes (912) evenly arranged circumferentially with the first rotating shaft as the center, and the support plate (66) is threaded with fixing bolts that are threaded to the mounting holes (912).

7. The fiberglass epoxy cylinder winding system according to claim 5, characterized in that: The lower end of the guide roller is provided with a support rod (675) mounted on the frame (677). The support rod (675) supports a guide groove extending towards the impregnation tank. The end of the guide groove away from the impregnation tank is in contact with the fixing plate (672). The height of the support rod (675) is higher than the height of the impregnation tank.

8. The fiberglass epoxy cylinder winding system according to claim 5, characterized in that: The guide roller includes a first extrusion roller (674) and a second extrusion roller (679) arranged in sequence. The unwound cloth and glass fiber bundle pass around the lower end of the first extrusion roller (674) and exit from the upper end of the second extrusion roller (679).

9. The fiberglass epoxy cylinder winding system according to claim 4, characterized in that: The extrusion rod assembly includes a third extrusion roller (64) located at the top of the impregnation tank. The glass fiber bundle and unwound fabric pass over the third extrusion roller (64) and then over the guide roller.

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