Composite material oblique winding device

Abstract

The invention provides an oblique winding device for a composite material. The oblique winding device comprises a workbench, a core mold fixing device, a winding core mold, an adjustable roller type pressing roller, a cloth belt tension controller and a cloth belt walking speed sensor. The workbench comprises a base and two stand columns. One end of the mandrel fixing device is connected with the bracket, and the other end of the mandrel fixing device is connected with a mandrel of a winding mandrel; the adjustable roller type pressing roller makes contact with the winding core mold and controls the pressing force of the winding cloth belt. The cloth belt tension controller is connected with the winding cloth belt and used for controlling the tension of the winding cloth belt in the winding process, and the cloth belt walking speed sensor is connected with the cloth belt tension controller through the winding cloth belt; a fixing device is arranged on the bottom plate, a chuck is arranged on the fixing device, and a winding cloth belt is arranged on the chuck. The device solves the problem that cloth tape winding tension cannot be accurately applied in the oblique winding process, so that a large gap exists between cloth tapes in the winding process of an oblique winding product, and the cloth tape winding product is wrinkled after being subjected to hot-pressing curing.

Description

Technical Field

[0001] The invention relates to a composite material winding device, in particular to a composite material oblique winding device. Background Art

[0002] With the rapid development of commercial aerospace in recent years, the Starlink of companies around the world is accelerating, which puts higher requirements on launch vehicles. Solid rockets have unique advantages such as long shelf life and high launch maneuverability, and play an important role in the satellite launch process. The diffuser section in the propulsion device is an important component for energy conversion, and its comprehensive quality is the key to determining the comprehensive performance of the propulsion device.

[0003] At present, the tape winding diffusion section is mainly overlapped, the angle between the rocket tail flame and the tape winding is small, and the heat transfer effect between the tapes is good, so it is impossible to achieve good ablation resistance and anti-scouring performance. The inner surface of the diffusion section of the propulsion device is directly related to the thrust size. During the operation of the solid rocket, if the inner surface of the diffusion section is severely scoured, it will seriously affect the thrust of the rocket, and seriously affect the flight trajectory and flight distance of the rocket. Therefore, it is very important to improve the anti-scouring performance of the diffusion section. Oblique tape winding has a significant effect on improving the anti-scouring performance of the diffusion section, but this method currently has many problems such as difficulty in applying tape tension and obvious wrinkles in the wound product. New process methods are urgently needed to solve them. Patent CN 113246492A reports a tape oblique winding device and winding method. In this method, the winding tape is also a plain cloth with a 45° oblique cut carbon fiber or a high-silicon pre-impregnated tape. Although there is a heating device during the winding process, there is still a problem of inconsistent linear speeds inside and outside the tape when the tape is unfolded by the conical roller. When the unfolding angle is too large, the risk of fiber breakage in the tape will be further increased, which directly affects the winding quality. Due to the uneven unfolding degree of the tape, more wrinkles are formed during the winding process. During the hot pressing process, as the resin solidifies and sets, the wrinkle defects will be magnified. During the inspection, the defect marks are obvious. At the same time, the quality of the wound products prepared by this method is unstable, the tension control accuracy is low, and the product yield cannot be guaranteed. Summary of the invention

[0004] The present invention provides a composite material oblique winding device, which solves the problem that the current oblique winding process cannot accurately apply the cloth tape winding tension, so that there are large gaps between the cloth tapes in the oblique wound product during the winding process, which leads to wrinkle defects in the cloth tape wound product after hot pressing and curing.

[0005] Based on this, the present invention provides a composite material oblique winding device, comprising: a workbench, a core mold fixing device, a winding core mold, an adjustable roller-type pressing roller, a cloth belt tension controller, and a cloth belt travel speed sensor;

[0006] The workbench includes a base and two columns; one end of the core mold fixing device is connected to the bracket, and the other end is connected to the core shaft of the winding core mold; the adjustable roller-type pressing roller contacts the winding core mold and controls the pressing force of the winding cloth tape; the cloth tape tension controller is connected to the winding cloth tape and is used to control the tension of the winding cloth tape during the winding process, and the cloth tape travel speed sensor is connected to the cloth tape tension controller through the winding cloth tape; a fixing device is arranged on the bottom plate, and a chuck is arranged on the fixing device, and the winding cloth tape is arranged on the chuck.

[0007] Furthermore, the composite material oblique winding device is also provided with a winding control system, which is connected to the core mold fixing device, the adjustable roller-type pressure roller, the cloth belt tension controller, and the cloth belt travel speed sensor to control the overall operation process of the composite material oblique winding equipment.

[0008] Furthermore, the core mold fixing device is a clamping device with adjustable rotation speed.

[0009] Furthermore, the adjustable roller type clamping roller is a hollow structure, and a plurality of diameter adjustable devices are provided at both ends. The clamping roller profile is adjusted at any time according to the profile of the wound product so that the winding tape fits the winding core mold.

[0010] Furthermore, there are multiple tape tension controllers, and a specific number of tape tension controllers are set according to a specific profile of the wound tape to control the tension of the wound tape.

[0011] Furthermore, the tape tension controller is a roller with adjustable inner and outer diameters, which automatically adjusts the inner and outer diameters of the roller according to the degree of deformation of the wrapped tape to ensure that the surface of the wrapped tape fits the surface of the tension controller, making it easier for the tape tension controller to apply a specific tension to the wrapped tape.

[0012] Furthermore, the winding control system is connected to a display, which is used to display the core mold rotation speed of the core mold fixing device, the pressure of the adjustable roller-type clamping roller, the tension of the cloth belt tension controller and the walking speed parameters of the walking belt walking speed sensor obtained by the control controller.

[0013] The above one or more technical solutions of the present invention have at least one or more of the following technical effects:

[0014] The oblique winding method of the propulsion device nozzle diffusion section provided by the present invention greatly improves the winding quality of the obliquely wound product, reduces the formation of wrinkle defects in the obliquely wound product, realizes controllable tension during the oblique winding process, increases the molding quality of the wound product, and improves the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1, composite material oblique winding device;

[0016] Figure 2 , schematic diagram of the tension roller arrangement in the tension controller. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the obtained embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0018] like Figure 1-2 As shown: A composite material oblique winding device, comprising: a workbench, a core mold fixing device, a winding core mold, an adjustable roller-type pressing roller, a cloth belt tension controller, a cloth belt travel speed sensor and a winding control system;

[0019] The workbench includes a base and two columns; the core mold fixing device is a clamping device with adjustable rotation speed, one end of the core mold fixing device is connected to the bracket, and the other end is connected to the core shaft of the winding core mold; the adjustable roller-type pressing roller is in contact with the winding core mold and controls the pressing force of the winding tape, wherein the winding control system is connected to the core mold fixing device, the adjustable roller-type pressing roller, the tape tension controller, and the tape travel speed sensor to control the overall operation process of the composite material oblique winding equipment; the tape tension controller is connected to the winding tape and is used to control the tension of the winding tape during the winding process, wherein there are multiple tape tension controllers, and a specific number of tape tension controllers are set according to the specific profile of the winding tape to control the tension of the winding tape. The tape tension controller is a roller with adjustable inner and outer diameters. The inner and outer diameters of the roller are automatically adjusted according to the deformation degree of the wrapped tape to ensure that the surface of the wrapped tape fits the surface of the tension controller, so that the tape tension controller can apply a specific tension to the wrapped tape. The tape travel speed sensor is connected to the tape tension controller through the wrapped tape. A fixing device is arranged on the bottom plate, and a chuck is arranged on the fixing device, on which the wrapped tape is arranged.

[0020] The winding control system is connected to a display, which is used to display the core mold rotation speed of the core mold fixing device, the pressure of the adjustable roller-type clamping roller, the tension of the cloth belt tension controller and the walking speed parameters of the walking belt walking speed sensor obtained by the control controller.

[0021] The specific steps of the work are:

[0022] 1) Load the prefabricated tape reel into the chuck and place it into the tape chuck slot. Pass the tape through the tape tension controller and the adjustable roller-type pressure roller along the winding path and into the winding equipment. Use the friction between the winding tape and the winding mandrel to fix the winding tape 4 on the surface of the winding mandrel according to a predetermined trajectory, and wind it according to the preset trajectory.

[0023] 2) During the winding process, the tape tension controller 5 will continuously adjust the inner and outer diameters according to the tape profile to ensure that the tension roller profile in the tension controller fits the wound tape perfectly, so as to ensure that the tape winding tension is accurately controlled during the winding process. At the same time, the tape tension controller is connected to the winding control system through a signal line to monitor and control the tape winding tension in real time.

[0024] 3) The tape travel speed sensor will automatically match the unwinding speed of the tape roll according to the required winding speed to ensure the accuracy of tension control. At the same time, the travel speed sensor is connected to the winding control system with a signal line to provide real-time feedback and transmit the tape travel speed signal.

[0025] 4) The winding control system is mainly responsible for controlling the entire oblique winding device, sending control signals to each device through the signal line to implement the oblique winding process of the fabric tape.

Claims

1. A composite material oblique winding device, characterized in that: include: A core mold fixing device (1), a winding core mold (2), an adjustable roller-type pressing roller (3), a cloth belt tension controller (4), a cloth belt travel speed sensor (5), and a workbench (6); The workbench (6) comprises a base and two columns; one end of the core mold fixing device (1) is connected to the bracket, and the other end is connected to the core shaft of the winding core mold (2); the adjustable roller type pressing roller (3) contacts the winding core mold (2) and controls the pressing force of the winding tape; the tape tension controller (4) is connected to the winding tape and is used to control the tension of the winding tape during the winding process, and the tape travel speed sensor (5) is connected to the tape tension controller (4) via the winding tape; a fixing device is arranged on the bottom plate, and a chuck is arranged on the fixing device, and the winding tape is arranged on the chuck.

2. The composite material oblique winding device according to claim 1, characterized in that: The composite material oblique winding device is also provided with a winding control system, which is connected to the core mold fixing device (1), the adjustable roller-type pressing roller (3), the cloth belt tension controller (4), and the cloth belt travel speed sensor (5) to control the overall operation process of the composite material oblique winding device.

3. The composite material oblique winding device according to claim 1, characterized in that: The core mold fixing device (1) is a clamping device with adjustable rotation speed.

4. The composite material oblique winding device according to claim 1, characterized in that: The adjustable roller type pressing roller (3) is a hollow structure, with a plurality of diameter adjustable devices arranged at both ends. The pressing roller profile is adjusted at any time according to the profile of the wound product, so that the winding cloth belt fits the winding core mold (2).

5. The composite material oblique winding device according to claim 1, characterized in that: There are a plurality of cloth tape tension controllers (4), and a specific number of cloth tape tension controllers (4) are set according to a specific profile of the wound cloth tape to control the tension of the wound cloth tape.

6. The composite material oblique winding device according to claim 1, characterized in that: The tape tension controller (4) is a roller with adjustable inner and outer diameters. The inner and outer diameters of the roller are automatically adjusted according to the degree of deformation of the wound tape, ensuring that the surface of the wound tape fits the surface of the tape tension controller (4), making it easier for the tape tension controller (5) to apply a specific tension to the wound tape.

7. The composite material oblique winding device according to claim 2, characterized in that: The winding control system is connected to a display, and the display is used to display the core mold rotation speed of the core mold fixing device (1), the pressure of the adjustable roller type pressing roller (3), the tension of the cloth belt tension controller (4) and the walking speed parameters of the walking belt walking speed sensor (5) obtained by the control controller.

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