Large-tension multi-station winding and conveying system for prepreg tape

Abstract

The invention relates to the technical field of prepreg tape pressure gas cylinder winding forming processes, in particular to a prepreg tape large-tension multi-station winding conveying system which comprises prepreg tape yarn releasing creels and a yarn collecting guide device, a plurality of sets of prepreg tape yarn releasing creels are placed on one side of the outer wall of the yarn collecting guide device, and a plurality of sets of prepreg tape yarn releasing creels are placed on the other side of the outer wall of the yarn collecting guide device. A tension control mounting plate is fixedly connected to the upper portion of the front end of the prepreg tape yarn releasing creel rack, and a three-color lamp is mounted on one side of the upper end of the prepreg tape yarn releasing creel rack. According to the large-tension multi-station winding and conveying system for the prepreg tape, the unwinding number of the prepreg tape can be selected according to the station number of the winding machine and corresponding process requirements, the width of the conveyed prepreg tape is consistent, the maximum conveying speed reaches 700 m / min, the prepreg tape does not have the phenomenon of sliding friction fuzzing, guarantee is provided for continuous and stable winding production of large-tension gas cylinders, and the production efficiency is improved. The composite material manufacturing process is high in production efficiency, high in automation degree and relatively simple in structure.

Description

Technical Field

[0001] The invention relates to the technical field of winding molding technology for prepreg pressure cylinders, in particular to a high-tension multi-station winding and conveying system for prepregs. Background Art

[0002] Winding is a process used to manufacture fiber-reinforced composite materials, usually used to produce cylindrical structural parts. The core of the winding process is to wind the fiber material on the mold according to a specific pattern to form composite parts, such as pressure cylinders, composite pipes, etc., which are widely used in aerospace, automotive industry, sports equipment, wind power generation and new energy fields.

[0003] The winding process is mainly divided into single-station winding machines and multi-station winding machines. Single-station winding machines can only wrap one gas cylinder at a time and need to be operated manually or semi-automatically. The degree of automation is low and it is suitable for small batch production or winding of gas cylinders of special specifications; multi-station winding machines can wrap multiple gas cylinders at the same time and are equipped with an automatic control system. The degree of automation is high, which reduces the need for manual operation and improves production efficiency. It is suitable for mass production and can complete the winding of multiple gas cylinders in a short time.

[0004] In the production and processing of gas cylinder winding, multi-beam prepreg tape multi-station winding is an inevitable trend of future development. At present, the international winding equipment can basically realize automatic winding, but most of the equipment is still single-station, and the production efficiency obviously cannot meet the market demand.

[0005] To this end, the present invention discloses a prepreg tape high tension multi-station winding and conveying system, which can effectively solve the above-mentioned problems and realize a composite material manufacturing process with high production efficiency, high degree of automation and relatively simple structure. Summary of the invention

[0006] The purpose of the present invention is to solve the problem of the device and to propose a prepreg tape high-tension multi-station winding and conveying system.

[0007] To achieve the above object, the present invention provides the following technical solutions: A high-tension multi-station winding and conveying system for prepreg tape is designed, comprising a prepreg tape unwinding yarn rack and a wire collecting guide device, a plurality of groups of prepreg tape unwinding yarn racks are placed on one side of the outer wall of the wire collecting guide device, the prepreg tape unwinding yarn rack comprises a prepreg tape unwinding yarn rack frame, a plurality of groups of air-expansion shaft mounting plates are installed below the front end of the prepreg tape unwinding yarn rack frame, an inner wall of one side of the air-expansion shaft mounting plate is rotatably connected to the air-expansion shaft through a bearing, the outer wall of the air-expansion shaft is fixedly connected with the prepreg tape, a tension control mounting plate is fixedly connected above the front end of the prepreg tape unwinding yarn rack frame, and a three-color lamp is installed on one side of the upper end of the prepreg tape unwinding yarn rack frame.

[0008] Preferably, a profile is fixedly connected to the front side of the tension control mounting plate, a guide wheel mounting bracket 1 is installed at the center of the vertical part of the profile, the inner wall of the end of the guide wheel mounting bracket 1 is rotatably connected to the guide wheel 1, a guide wheel mounting bracket 2 is installed on the upper end of the vertical part of the profile, and the inner wall of the end of the guide wheel mounting bracket 2 is rotatably connected to the guide wheel 2, a tension control mounting box is fixedly connected to the horizontal part of the profile, one corner of the tension control mounting box is rotatably connected to the glass cylinder through a pin shaft, the output shaft end of the glass cylinder is rotatably connected to the swing arm through a pin shaft, a swing rod shaft is fixedly connected to the inner wall of the rotation center of the swing arm, a swing rod is fixedly connected to one side end of the swing rod shaft, the end of the swing rod is rotatably connected to the swing rod wheel, the outer wall of the swing rod shaft is rotatably connected to the tension control mounting box through a bearing seat 1, an angle sensor is installed on the other side of the swing rod shaft, and a limit rod is fixedly connected to the rear side of the outer wall of the tension control mounting box.

[0009] Preferably, the wire collecting guide device includes a wire collecting guide frame, a multi-layer bottom plate is fixedly connected to one side of the inner wall of the wire collecting guide frame, a multi-layer encoder roller is distributed on the other side of the inner wall of the wire collecting guide frame, both sides of the outer wall of the encoder roller are rotatably connected to the wire collecting guide frame through bearing seat 2, an encoder is installed on the rear end of the encoder roller, the outer wall of the encoder is fixedly connected to the wire collecting guide frame through an encoder mounting plate, the inner wall of the bottom plate is movably connected to a base, and a plurality of vertical wheels are equidistantly installed on the upper end of the base.

[0010] Preferably, a multi-layer wire collecting roller is installed above the left end of the wire collecting guide frame.

[0011] Preferably, a winding machine is installed on the front side of the wire collecting guide device, and a winding gas cylinder is distributed on the right side of the winding machine.

[0012] The invention provides a prepreg tape high tension multi-station winding and conveying system, which has the following beneficial effects: The prepreg high-tension multi-station winding and conveying system can select the number of prepreg unwindings according to the number of stations of the winding machine and the corresponding process requirements. During the high-tension and high-speed unwinding process, the air expansion shaft can stably tighten the prepreg on the air expansion shaft without slipping or loosening. The conveyed prepreg has a consistent width without twisting or flipping. The maximum conveying speed is 700m / min. According to different winding processes, it can output any tension below 8kg. The tension of the prepreg is always kept constant, and the prepreg has no sliding friction or fuzzing, which provides a guarantee for the continuous and stable production of high-tension gas cylinder winding, and realizes a composite material manufacturing process with high production efficiency, high degree of automation and relatively simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a multi-station winding and conveying system for prepreg tape with high tension; Figure 2 It is a structural schematic diagram of a prepreg tape placing creel; Figure 3 It is a structural schematic diagram of the profile; Figure 4 It is a structural schematic diagram of the wire collecting guide device.

[0014] In the figure: 1. Prepreg tape unwinding creel, 1-1. Air expansion shaft, 1-2. Prepreg tape, 1-3. Guide wheel 1, 1-4. Guide wheel 2, 1-5. Bearing seat 1, 1-6. Rocker wheel, 1-7. Tension control mounting box, 1-8. Three-color light, 1-9. Tension control mounting plate, 1-10. Air expansion shaft mounting plate, 1-11. Profile, 1-12. Guide wheel mounting bracket 1, 1-13. Guide wheel mounting bracket 2, 1-14. Limit rod, 1-1 5. Swing arm, 1-16. Swing rod shaft, 1-17. Angle sensor, 1-18. Glass cylinder, 1-19. Swing rod, 1-20. Prepreg tape unwinding yarn rack frame, 2. Wire collecting guide device, 2-1. Bearing seat 2, 2-2. Wire collecting roller, 2-3. Encoder, 2-4. Encoder mounting plate, 2-5. Encoder roller, 2-6. Bottom plate, 2-7. Vertical wheel, 2-8. Base, 2-9. Wire collecting guide rack, 3. Winding machine, 4. Winding cylinder. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings: Refer to the attached Figure 1-4 : In the present embodiment, a prepreg tape high-tension multi-station winding and conveying system comprises a prepreg tape unwinding yarn rack 1 and a wire collecting guide device 2, a plurality of groups of prepreg tape unwinding yarn racks 1 are placed on one side of the outer wall of the wire collecting guide device 2, a winding machine 3 is installed on the front side of the wire collecting guide device 2, and a winding gas cylinder 4 is distributed on the right side of the winding machine 3, the prepreg tape unwinding yarn rack 1 comprises a prepreg tape unwinding yarn rack frame 1-20, a plurality of groups of air expansion shaft mounting plates 1-10 are installed below the front end of the prepreg tape unwinding yarn rack frame 1-20, an inner wall of one side of the air expansion shaft mounting plate 1-1 is rotatably connected to the air expansion shaft 1-1 through a bearing, the outer wall of the air expansion shaft 1-1 is fixedly connected with the prepreg tape 1-2, a tension control mounting plate 1-9 is fixedly connected above the front end of the prepreg tape unwinding yarn rack frame 1-20, and a three-color lamp 1-8 is installed on one side of the upper end of the prepreg tape unwinding yarn rack frame 1-20; The gas expansion shaft 1-1 is located in the bearing seat, a double bearing is arranged in the bearing seat, a synchronous pulley is arranged at the end of the gas expansion shaft 1-1, and a rotary joint is arranged at the end face of the gas expansion shaft 1-1 for providing compressed air to the gas expansion shaft.

[0016] The rotation of the air expansion shaft 1-1 is driven by a motor, and the motor is provided with a reducer to increase the torque, and the reducer is installed on a connecting bracket.

[0017] The guide wheel is provided with double bearings and is very flexible in rotation. The prepreg tape changes direction through the guide wheel. The surface of the guide wheel is plated with an anti-stick coating or the guide wheel substrate is made of an anti-stick material.

[0018] The tension control mechanism includes a rocker shaft 1-16 and a rocker 1-19 fixed to a bearing seat. The tail end of the rocker shaft 1-16 is connected to an angle sensor 1-17. The rocker shaft 1-16 is also connected to a glass cylinder 1-18. The rocker shaft 1-16 is rotated by the rocker arm 1-15. The rocker shaft 1-16 drives the guide wheel on the rocker 1-19 to provide a downward force. The angle sensor 1-17 then detects and controls the position of the rocker 1-19 to keep it in a horizontal position at all times, thereby controlling the output tension.

[0019] The front side of the tension control mounting plate 1-9 is fixedly connected with the profile 1-11, the center of the vertical part of the profile 1-11 is installed with a guide wheel mounting bracket 1-12, the inner wall of the end of the guide wheel mounting bracket 1-12 is rotatably connected with a guide wheel 1-3, the upper end of the vertical part of the profile 1-11 is installed with a guide wheel mounting bracket 2-13, the inner wall of the end of the guide wheel mounting bracket 2-13 is rotatably connected with a guide wheel 2-4, the horizontal part of the profile 1-11 is fixedly connected with a tension control mounting box 1-7, and one corner of the tension control mounting box 1-7 is connected to the glass cylinder 1-1 through a pin shaft. 8 is rotatably connected, the end of the output shaft of the glass cylinder 1-18 is rotatably connected to the swing arm 1-15 through a pin shaft, a swing rod shaft 1-16 is fixedly connected to the inner wall of the rotation center of the swing arm 1-15, a swing rod 1-19 is fixedly connected to the end of one side of the swing rod shaft 1-16, and a swing rod wheel 1-6 is rotatably connected to the end of the swing rod 1-19, the outer wall of the swing rod shaft 1-16 is rotatably connected to the tension control installation box 1-7 through a bearing seat 1-5, an angle sensor 1-17 is installed on the other side of the swing rod shaft 1-16, and a limit rod 1-14 is fixedly connected to the rear side of the outer wall of the tension control installation box 1-7.

[0020] See attached Figure 1-4 : In this embodiment, the wire collecting guide device 2 includes a wire collecting guide frame 2-9, a multi-layer bottom plate 2-6 is fixedly connected to one side of the inner wall of the wire collecting guide frame 2-9, and a multi-layer encoder roller 2-5 is distributed on the other side of the inner wall of the wire collecting guide frame 2-9. Both sides of the outer wall of the encoder roller 2-5 are rotatably connected to the wire collecting guide frame 2-9 through a bearing seat 2-1, an encoder 2-3 is installed at the rear end of the encoder roller 2-5, and the outer wall of the encoder 2-3 is fixedly connected to the wire collecting guide frame 2-9 through an encoder mounting plate 2-4, and the inner wall of the bottom plate 2-6 is movably connected to a base 2-8, and a plurality of sets of vertical wheels 2-7 are equidistantly installed on the upper end of the base 2-8, and a multi-layer wire collecting roller 2-2 is installed above the left end of the wire collecting guide frame 2-9; The wire collecting guide device 2 includes a wire collecting roller 2-2, an encoder roller 2-5 and an encoder 2-3, which are used to collect and convey the prepreg tapes forward and control the unwinding speed of all prepreg tapes to be consistent, so that the surface tension of the wire wound on the gas cylinder is constant; The wire collecting guide device 2 also includes a guide vertical wheel assembly. The vertical wheel 2-7 is installed on the base 2-8. The base 2-8 is connected to the bottom plate 2-6 by a cylindrical pin. The bottom plate 2-6 is provided with an arc groove. By rotating the installation angle of the base 2-6 in the arc groove, the prepreg tape is rotated 90° with an appropriate wire surface width and stably transmitted to the winding machine.

[0021] Working principle: Each air expansion shaft 1-1 is installed on the air expansion shaft mounting plate 1-10 through a bearing seat. A synchronous pulley is provided at the end of the air expansion shaft. The rotation of the motor is transmitted to the air expansion shaft 1-1 through the pulley. The tension of the air expansion shaft 1-1 is controlled by the solenoid valve. When the solenoid valve is energized, the air expansion shaft 1-1 is in a tensioned state. When the solenoid valve is de-energized, the air expansion shaft 1-1 is in a relaxed state. After the prepreg tape 1-2 is placed in the air expansion shaft 1-1, the switch is pressed to energize the solenoid valve, and compressed air enters the air expansion shaft 1-1. The tension module is pressed and extends outward to fix the prepreg tape 1-2. The prepreg tape 1-2 first passes through the guide wheel 1-3, and the tow will flip 90° at this time. The reciprocating motion caused by the winding of the prepreg tape 1-2 is offset, and the prepreg tape 1-2 then passes through the rocker wheel 1-6, the rocker wheel 1-6 is installed in the rocker 1-19, the rocker 1-19 is fixed to the rocker shaft 1-16, the rocker shaft 1-16 is fixed to the tension control mounting box 1-7 through the bearing seat 1-5, the tension control mounting box 1-7 is fixed to the profile 1-11, the profile 1-11 is installed on the tension control mounting plate 1-9, the guide wheel 1-3 is connected to the guide wheel mounting bracket 1-12 and fixed to the profile 1-11, the guide wheel 2 1-4 is connected to the guide wheel mounting bracket 1-13 and fixed to the profile 1-11, An angle sensor 1-17 is provided at the end of the swing rod shaft 1-16. The angle sensor 1-17 detects the current position of the swing rod wheel 1-6 to control the unwinding speed. The upper and lower limits of the angle sensor 1-17 are 0-5V. When it is 2.5V, the swing rod wheel 1-6 is in the middle position. When the voltage exceeds 2.5V, the motor speed increases, so that the swing rod wheel 1-6 returns to the 2.5V position. On the contrary, the motor speed decreases, so that the swing rod wheel 1-6 always remains at the 2.5V position during the wire unwinding process. The limit rod 1-14 is used to limit the upper and lower limits of the rotation angle of the swing rod wheel 1-6 to ensure that it does not exceed the detection of the angle sensor 1-17 Range, a swing arm 1-15 is provided in the swing arm shaft 1-16, one end of the glass cylinder 1-18 is connected to the swing arm 1-15, and the other end is connected to the tension control installation box 1-7. The proportional valve controls the size of the air pressure to the glass cylinder 1-18 to achieve tension setting. The tension setting is determined according to the winding process requirements of the winding gas cylinder 4, and can be freely set below 8kg tension. When the prepreg tape 1-2 breaks, the swing arm wheel 1-6 is at 0V, and the three-color light 1-8 emits an audible and visual alarm to prompt the operator to replace or splice the prepreg tape 1-2. After the prepreg tape 1-2 passes through the guide wheel 1-4, it enters the wire collecting guide device 2 to complete the wire collecting.

[0022] like Figure 4As shown, the wire collecting roller 2-2 is fixed to the wire collecting guide frame 2-9 through the bearing seat 2-1, and ribs are provided at both ends of the wire collecting roller to prevent the prepreg tape 1-2 from slipping out. The encoder roller 2-5 is fixed to the wire collecting guide frame 2-9 through the bearing seat 2-1. One end of the encoder roller 2-5 is connected to the encoder 2-3, and the encoder 2-3 is fixed to the wire collecting guide frame 2-9 through the encoder mounting plate 2-4. After the prepreg tape 1-2 passes through the encoder roller 2-5, a certain wrap angle is formed, so that the encoder 2-3 detects the number of revolutions of the encoder roller 2-5 to control the reaction time of the motor start and stop, so that the prepreg tape 1-2 does not vibrate during the winding process and the tension remains constant. The vertical wheel 2-7 is installed on the base 2-8, and then connected to the bottom plate 2-6 through a cylindrical pin. The bottom plate 2-6 is provided with two arc grooves to control the spacing of the prepreg tape 1-2 after passing through the vertical wheel 2-7, and then enters the winding machine 3 to start the winding work. The wire collecting guide device 2 is provided with 3 layers, but not limited to 3 layers. The number of layers can be determined according to the winding station of the winding machine 3. Each prepreg tape 1-2 can be transmitted independently. The wire surface width of the prepreg tape 1-2 after arriving at the winding machine 3 can be freely selected according to the different winding processes, thereby realizing the stable and efficient production of multi-station prepreg tape winding of gas cylinders.

[0023] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A prepreg tape high-tension multi-station winding and conveying system, comprising a prepreg tape unwinding creel (1) and a wire collecting guide device (2), wherein a plurality of prepreg tape unwinding creels (1) are placed on one side of an outer wall of the wire collecting guide device (2), characterized in that: The prepreg tape unwinding yarn rack (1) comprises a prepreg tape unwinding yarn rack frame (1-20), a plurality of groups of air-expansion shaft mounting plates (1-10) are installed below the front end of the prepreg tape unwinding yarn rack frame (1-20), an inner wall of one side of the air-expansion shaft mounting plate (1-10) is rotatably connected to the air-expansion shaft (1-1) via a bearing, the outer wall of the air-expansion shaft (1-1) is fixedly connected to the prepreg tape (1-2), a tension control mounting plate (1-9) is fixedly connected above the front end of the prepreg tape unwinding yarn rack frame (1-20), and a three-color lamp (1-8) is installed on one side of the upper end of the prepreg tape unwinding yarn rack frame (1-20).

2. A prepreg tape high tension multi-station winding and conveying system according to claim 1, characterized in that: The front side of the tension control mounting plate (1-9) is fixedly connected to a profile (1-11); a guide wheel mounting bracket (1-12) is mounted at the center of the vertical portion of the profile (1-11); the inner wall of the end of the guide wheel mounting bracket (1-12) is rotatably connected to a guide wheel (1-3); a guide wheel mounting bracket (2) (1-13) is mounted at the upper end of the vertical portion of the profile (1-11); the inner wall of the end of the guide wheel mounting bracket (2) (1-13) is rotatably connected to a guide wheel (1-4); a tension control mounting box (1-7) is fixedly connected to the horizontal portion of the profile (1-11); a corner of the tension control mounting box (1-7) is connected to the glass cylinder (1-18) via a pin shaft. The end of the output shaft of the glass cylinder (1-18) is rotationally connected to the swing arm (1-15) through a pin shaft, a swing rod shaft (1-16) is fixedly connected to the inner wall of the rotation center of the swing arm (1-15), a swing rod (1-19) is fixedly connected to one end of the swing rod shaft (1-16), the end of the swing rod (1-19) is rotationally connected to a swing rod wheel (1-6), the outer wall of the swing rod shaft (1-16) is rotationally connected to the tension control installation box (1-7) through a bearing seat (1-5), an angle sensor (1-17) is installed on the other side of the swing rod shaft (1-16), and a limit rod (1-14) is fixedly connected to the rear side of the outer wall of the tension control installation box (1-7).

3. The prepreg tape high tension multi-station winding and conveying system according to claim 1 is characterized in that: The wire collecting guide device (2) comprises a wire collecting guide frame (2-9), a multi-layer bottom plate (2-6) is fixedly connected to one side of the inner wall of the wire collecting guide frame (2-9), a multi-layer encoder roller (2-5) is distributed on the other side of the inner wall of the wire collecting guide frame (2-9), both sides of the outer wall of the encoder roller (2-5) are rotatably connected to the wire collecting guide frame (2-9) through a second bearing seat (2-1), an encoder (2-3) is installed at the rear end of the encoder roller (2-5), the outer wall of the encoder (2-3) is fixedly connected to the wire collecting guide frame (2-9) through an encoder mounting plate (2-4), the inner wall of the bottom plate (2-6) is movably connected to a base (2-8), and a plurality of vertical wheels (2-7) are equidistantly installed on the upper end of the base (2-8).

4. A prepreg tape high tension multi-station winding and conveying system according to claim 3, characterized in that: A multi-layer wire collecting roller (2-2) is installed above the left end of the wire collecting guide frame (2-9).

5. The high-tension multi-station winding and conveying system for prepreg tape according to claim 1 is characterized in that: A winding machine (3) is installed on the front side of the wire collecting guide device (2), and a winding gas cylinder (4) is distributed on the right side of the winding machine (3).

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