A three-dimensional winding composite material preparation device and operation method thereof

Abstract

The present invention discloses a three-dimensional winding composite material preparation device and an operation method thereof, which belongs to the technical field of composite material shell molding, and includes an original winding device and a shell installed on a rotating device, and a newly added winding device; the newly added winding device includes a fixed plate, a movable column is movably installed on the fixed plate through a fixed seat, a worm is installed on one end of the movable column, the worm is meshed with a worm wheel installed on a motor, the motor is installed on the fixed plate, and a plurality of fiber rollers are movably installed on the other end of the movable column. The device can adjust the axial moving speed according to the needs on the basis of being easy for the staff to understand, so as to better control the force in the thickness Z direction, and is easy for the staff to operate, which is more conducive to popularization and use.

Description

Technical Field

[0001] The invention belongs to the technical field of composite material shell molding, and particularly relates to a three-dimensional winding molding composite material preparation device and an operation method thereof. Background Art

[0002] Composite materials are lightweight, high-strength, and highly designable. As composite pressure hull design and manufacturing technology matures, more and more marine and aerospace components are using carbon fiber composite materials to replace traditional metals, and the requirements are also raised accordingly, such as full-sea-depth use and signal equipment use. In order to be fully competent for the preparation of deep-sea pressure-resistant structures, composite pressure hulls must overcome the disadvantage of easy delamination of winding-molded hulls.

[0003] The traditional pressure hull winding process is designed to be layer-by-layer winding. The cured composite structure has high strength, but the thermosetting resin has poor impact resistance because it is manufactured layer by layer, which makes it easy to disperse between layers under impact. The hull for deep-sea diving (i.e., the composite material has a thick strength layer) and structural and functional integrated parts (such as underwater transducers) are extremely sensitive to delamination or semi-bonding between layers, which may affect the sound and wave functions such as signal transmission, or affect the life of the hull or even directly damage it.

[0004] In summary, the problem of insufficient force between the layers of the wound pressure-resistant shell is an obstacle that cannot be ignored in the development of increasingly demanding lightweight, reduced shell margins, cyclic fatigue conditions, sound / wave transmission, etc., that is, the problem of lack of force between the layers in the Z direction needs to be solved. Summary of the invention

[0005] In view of the above problems in the prior art, an object of the present invention is to provide a three-dimensional winding composite material preparation device and an operation method thereof.

[0006] The present invention provides the following technical solutions:

[0007] A three-dimensional winding composite material preparation device comprises an original winding device and a shell installed on a rotating device, and a newly added winding device; the newly added winding device comprises a fixed plate, a movable column is movably installed on the fixed plate through a fixed seat, a worm is installed on one end of the movable column, the worm is meshed with a worm wheel installed on a motor, the motor is installed on the fixed plate, and a plurality of fiber rollers are movably installed on the other end of the movable column.

[0008] Specifically, a protrusion is provided on the movable column, a sliding groove is provided on the fixed seat, and the protrusion is placed in the sliding groove.

[0009] Specifically, a small spring plunger is installed in each fiber roller, and a plurality of annular grooves are provided on the moving column.

[0010] Specifically, each fiber roller is provided with a fiber nozzle.

[0011] Specifically, the axial movement speed is controlled by controlling the time t for the motor to rotate a single length of the housing.

[0012] Specifically, the time t is changed by changing the pitch diameter of the worm gear or by a motor.

[0013] Specifically, the time t formula is:

[0014]

[0015] Where d2 is the pitch diameter of the worm wheel, d1 is the fiber roller diameter, l is the fiber roller length, and z is the motor speed.

[0016] Based on the above device, the present invention also proposes an operating method using the above three-dimensional winding composite material preparation device, comprising the following steps:

[0017] S1, the original winding device is wound normally according to the traditional winding method, either hoop or longitudinal;

[0018] S2, set up another set of new winding device, the arrangement direction is opposite to the original winding device, the threading direction is opposite, the original winding speed V 原 Lower than the added winding speed V 新 ;

[0019] S3, V 原 Less than V 新 , and the angles are different, then the fibers output by the newly added winding device are interwoven with the traditional winding line type, which is manifested as adding a winding process to the ordinary winding process at the same time, that is, it is very similar to the weaving method, and the winding behavior is tight;

[0020] S4, providing fiber bundles in the thickness direction can be adjusted by adding a wire nozzle of the winding device. The fiber bundles required in the thickness direction are designed according to the shell size, strength requirements, etc., in the form of a winding device with multiple wire nozzles branching, synchronously carried out in multiple positions, or increasing the number of rows of wire nozzles up and down;

[0021] S5, by adjusting the distribution density and route of the newly added winding device, the fibers wound outside the shell can be as uniform as possible;

[0022] S6, due to V 原 Less than V 新 , the angle is close to the axial direction, so the spatial winding behavior is tight, and the output fiber of the newly added device and the original winding fiber of the shell complete reciprocating interweaving;

[0023] S7, the newly added fibers interwoven between the conventional winding fiber layers become the tensioning force in the thickness direction, and the manufacturing of a three-dimensional three-directional tightly bound composite material structure is completed by fiber winding.

[0024] Specifically, in S2, the staff inputs the time t required for a single trip, thereby controlling the axial movement speed and thus controlling V 新 .

[0025] The beneficial effects of the present invention are:

[0026] 1. The device can pass continuous fibers between the layers of the composite material wound layer by layer, thereby providing force in the thickness Z direction of the composite structure;

[0027] 2. The device can adjust the axial moving speed according to the needs on the basis of being easy for the staff to understand, so as to better control the force in the thickness Z direction, and at the same time it is easy for the staff to operate and is more conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 It is a three-dimensional diagram of the newly added winding device in the present invention;

[0031] The markings in the figure are: 1. shell; 2. original winding device; 3. newly added winding device; 4. motor; 5. fixed plate; 6. worm gear; 7. worm; 8. moving column; 9. fiber roller; 10. fixed seat. DETAILED DESCRIPTION

[0032] The existing winding process is two-dimensional plane yarn drawing, and the thickness is formed by the laying and overlapping of the fiber thickness; there is no strong winding fiber in the thickness direction. To find a way to wind in the thickness direction, it is necessary to add a winding device in one direction at the same time, and output at a slower rhythm without affecting the normal winding. When the speed difference between the two winding devices is large enough and the angle is reasonable, three-dimensional spatial cross winding can be completed.

[0033] The basic idea is that two winding devices / winding trolleys are operated simultaneously, and the space crossing is completed through the time difference. Assume that there are two people in the two winding devices, and assume that the complete winding area is a playground runway - the winding shell column section is unfolded into a (thick) rectangular shape.

[0034] Explained as the following steps:

[0035] Step 1: The original little man runs slowly and has his own route, alternating between zigzag, inner circle, outer circle, etc.

[0036] Step 2: The new character runs fast and has his own route. The basic distance is a 100-meter track, and the tracks are alternating.

[0037] Step 3: Assume that the new character completes one lap, and the two characters meet for the first time at the same level, on track 1.

[0038] Step 4: Assume that the new character has completed the second lap and gradually changes direction to Lane 2. The two characters meet again at the same level, but their eyes move to Lane 2.

[0039] Step 5: In this way, the two little people can meet and cross each other in different ways according to different speeds and routes.

[0040] Step 6: The running track of the original man is the traditional winding fiber line type, and the running track of the new man is the winding fiber with the addition of the winding device.

[0041] Step 7: The trajectories of the two people intersect at different positions with different numbers of circles; the fibers are interwoven at different thicknesses and different coordinates.

[0042] Step 8: The cross density and richness of the action trajectory can be increased by placing several little people to increase the trajectory amplitude; the degree of fiber spatial interweaving and the complexity of three-dimensional winding can also be adjusted by adding the number and angle of yarn mouths of the winding device.

[0043] Based on the above principle, the present invention proposes a process method designed using the above principle, comprising the following steps:

[0044] Step 1: The original winding device is wound normally according to the traditional method, either hoop or longitudinal.

[0045] Step 2: Set up another winding device, which is arranged in the opposite direction to the original winding device, and the yarn threading direction is opposite to the original winding speed V 原 Lower than the winding speed V 新 .

[0046] Step 3: V 原 Less than V 新 , and the angles are different, then the fibers output by the newly added winding device are interwoven with the traditional winding line type, which is manifested as adding a winding process to the ordinary winding process at the same time, that is, it is very similar to the weaving method, and the winding behavior is tight.

[0047] Step 4: The fiber bundle in the thickness direction can be adjusted by adding a wire nozzle of the winding device. The required fiber bundle in the thickness direction is designed according to the shell size, strength requirements, etc. The form is a winding device with multiple wire nozzles (similar to comb teeth encryption), which are carried out synchronously in multiple positions; or the number of rows of wire nozzles is increased up and down, that is, the starting distribution position of the slow man on the runway is adjusted.

[0048] Step 5: By adjusting the distribution density and route of the newly added winding device, the fibers wound outside the shell can be as uniform as possible.

[0049] Step 6: Since V 原 Less than V 新 The angle is close to the axial direction, so the spatial winding behavior is tight, and the output fiber of the newly added device and the original winding fiber of the shell complete reciprocating interweaving.

[0050] Step 7: The newly added fibers interwoven between the conventional winding fiber layers become the tensioning force in the thickness direction, and the three-dimensional three-directionally tightly bound composite material structure is manufactured by fiber winding.

[0051] Based on the above-mentioned process method, the present invention also provides a three-dimensional winding molding composite material preparation device, including an original winding device 2, a shell 1 installed on a rotating device and a newly added winding device 3; the newly added winding device 3 includes a fixed plate 5, a movable column 8 is movably installed on the fixed plate 5 through a fixed seat 10, a protrusion is provided on the movable column 8, and a slide groove is provided on the fixed seat 10, and the protrusion is placed in the slide groove. A worm 7 is installed on one end of the movable column 8, and the worm 7 is meshed with a worm wheel 6 installed on the motor 4. The motor 4 is installed on the fixed plate 5 through a motor seat, and a plurality of fiber rollers 9 are movably installed on the other end of the movable column 8.

[0052] Furthermore, a small spring plunger is installed in each fiber roller 9 , and a plurality of annular grooves are provided on the movable column 8 . When the small spring plunger moves to the position of the annular groove, the fiber roller 9 is movably stuck on the movable column 8 .

[0053] Specifically, each fiber roller 9 is provided with a fiber nozzle.

[0054] When the motor 4 rotates, it drives the entire moving column 8 to move axially. By controlling the speed of the motor 4, the axial moving speed of the moving column 8 is controlled. The faster the axial moving speed is, the faster the winding speed is.

[0055] The device can pass continuous fibers between layers of composite materials that are wound layer by layer, thereby providing force in the thickness Z direction of the composite material structure; at the same time, the design of multiple fiber rollers 9 can increase the required yarn bundles. A single fiber roller 9 will not be able to provide sufficient force in the thickness z direction and cannot form a tight spatial winding behavior. The fiber rollers 9 can be increased or decreased later according to the needs of the staff.

[0056] At the same time, due to different needs, when the fiber winding thickness is thin, the required support force in the thickness direction is small. At this time, the staff needs a faster axial movement speed to shorten the molding time and increase production. When the fiber winding thickness is thick, the required support force in the thickness direction is large. At this time, the staff needs a smaller axial movement speed to provide a larger Z-direction support force, thereby preventing the fiber from dispersing between layers under impact.

[0057] The adjustment of the axial movement speed is controlled by controlling the time t of the motor 4 rotating one way, that is, the motor 4 controls the time t of the moving column 8 moving the length of the housing 1 one way:

[0058]

[0059] Wherein d2 is the pitch diameter of the worm wheel 6, d1 is the diameter of the fiber roller 9, l is the length of the fiber roller 9, and z is the rotation speed of the motor 4, so that the axial movement speed can be changed by changing the pitch diameter of the worm wheel 6 or by changing the time t through the motor 4. Since the time t required for the moving column 8 to move the length of the housing 1 in a single stroke can more intuitively express the axial movement speed, it is easier for the staff to understand and adjust according to needs.

[0060] By inputting the above formula into the controller, the staff only needs to input the time required for a single trip, and the device automatically adjusts the speed of the motor 4 to meet the work requirements.

[0061] The rotating device, the existing winding device 2 and the motor 4 are communicatively coupled to the control panel.

[0062] The control panel contains a PLC controller, which can program the numerical control system. The PLC is used as the central control system, and the touch screen is used to realize the program input and operation control of the whole machine, so as to realize the full automation of the transportation process. The control system can be used as a system that connects various actuators to move according to the logical trajectory, and the actuators can be controlled by programming to run according to the required operation steps.

[0063] Based on the above device, the present invention also proposes an operating method for using the three-dimensional winding composite material preparation device, and adds in step 2 of the original process method: the staff inputs the time t required for a single trip, so as to control the axial movement speed and thus control V 新 .

[0064] The device can adjust the axial moving speed according to needs on the basis of being easy for the staff to understand, is easy for the staff to operate, and is more conducive to popularization and use.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An operating method of a three-dimensional winding composite material preparation device, wherein the three-dimensional winding composite material preparation device comprises an original winding device and a shell mounted on a rotating device, and also comprises a newly added winding device; the newly added winding device comprises a fixed plate, a movable column is movably mounted on the fixed plate through a fixed seat, a worm is mounted on one end of the movable column, the worm is meshed with a worm wheel mounted on a motor, the motor is mounted on the fixed plate, and a plurality of fiber rollers are movably mounted on the other end of the movable column; It is characterized in that The method is implemented by a three-dimensional winding composite material preparation device, comprising the following steps: S1, the original winding device is wound normally according to the traditional winding method, either hoop or longitudinal; S2, set up another set of new winding device, the arrangement direction is opposite to the original winding device, the threading direction is opposite, the original winding speed V 原 Lower than the added winding speed V 新 ; When the fiber winding thickness is thin, the required support force in the thickness direction is small. At this time, the staff needs a faster axial movement speed to shorten the molding time. When the fiber winding thickness is thicker, the required support force in the thickness direction is larger. At this time, the staff needs a smaller axial movement speed to provide a larger Z-direction support force; The axial movement speed is controlled by controlling the time t for the motor to rotate the shell length in one pass; The time t is changed by changing the pitch diameter of the worm gear or by the motor; The time t formula is: t=d2× ×z Where d2 is the pitch diameter of the worm wheel, d1 is the fiber roller diameter, l is the fiber roller length, and z is the motor speed; The staff inputs the time t required for a single trip, which can control the axial movement speed and thus control V 新 ; S3, V 原 Less than V 新 , and the angles are different, then the fibers output by the newly added winding device are interwoven with the traditional winding line type, which is manifested as adding a winding process to the ordinary winding process at the same time, that is, it is very similar to the weaving method, and the winding behavior is tight; S4, providing the fiber bundle in the thickness direction can be adjusted by adding a wire nozzle of the winding device, and the fiber bundle required in the thickness direction is designed according to the shell size and strength requirements, in the form of a winding device with multiple wire nozzles branching, synchronously carried out in multiple positions, or increasing the number of rows of wire nozzles up and down; S5, by adjusting the distribution density and route of the newly added winding device, the fibers wound outside the shell can be as uniform as possible; S6, due to V 原 Less than V 新 , the angle is close to the axial direction, so the spatial winding behavior is tight, and the output fiber of the newly added device and the original winding fiber of the shell complete reciprocating interweaving; S7, the newly added fibers interwoven between the conventional winding fiber layers become the tensioning force in the thickness direction, and the manufacturing of a three-dimensional three-directional tightly bound composite material structure is completed by fiber winding.

2. The operating method of a three-dimensional winding composite material preparation device according to claim 1, characterized in that: A protrusion is arranged on the movable column, a sliding groove is arranged on the fixed seat, and the protrusion is arranged in the sliding groove.

3. The operating method of a three-dimensional winding composite material preparation device according to claim 1 or 2, characterized in that: Small spring plungers are installed in the fiber rollers, and a number of annular grooves are arranged on the moving column.

4. The operating method of a three-dimensional winding composite material preparation device according to claim 1, characterized in that: Each fiber roll is provided with a wire nozzle.

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