CN113246492A - Cloth tape oblique winding equipment and winding method - Google Patents
Cloth tape oblique winding equipment and winding method Download PDFInfo
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- CN113246492A CN113246492A CN202110432501.7A CN202110432501A CN113246492A CN 113246492 A CN113246492 A CN 113246492A CN 202110432501 A CN202110432501 A CN 202110432501A CN 113246492 A CN113246492 A CN 113246492A
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- tape
- winding
- cloth
- cloth belt
- adhesive tape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
A cloth tape oblique winding device and a method thereof comprise a core mold, a compression roller and a cloth tape; the core die is used for winding a cloth belt, and the surface of the compression roller is wound on the core die and contacted with the cloth belt and is used for compressing the cloth belt; the core mold is a variable diameter core mold; the compression roller is of a multi-wheel-sheet structure, a plurality of wheel sheets are arranged side by side to form a cylindrical compression roller, and the surface of each wheel sheet is provided with a puncture needle. The plain-woven carbon fiber cloth is used as a basic material of the cloth belt, the special cloth belt with the gradually changed deformation rate is not needed, and meanwhile, the cloth belt is a heat-resistant adhesive tape adhered with the carbon fiber cloth, so that the heat-resistant adhesive tape has the elongation of the heat-resistant adhesive tape and the toughness and strength of the carbon fiber cloth, and can be perfectly attached to a core mold to form a complete high-strength winding body.
Description
Technical Field
The invention belongs to the technical field of manufacturing of composite material parts, and particularly relates to a cloth tape oblique winding device and a winding method.
Background
The cloth belt winding is a production technology commonly used by modern solid rockets and is mainly used for a nozzle convergence section and an expansion section of a fixed launch and a reentry type spacecraft heat-proof layer. Usually, pre-impregnated carbon fiber cloth belts are wound on the inner layers of the convergent section and the divergent section of the hair-fixing spray pipe to resist the scouring and ablation of thousands of high-temperature airflow; and a high silica cloth tape pre-impregnated with glue is wound between the shell and the inner wall to serve as a heat insulation layer. The heat-proof layer of the reentry spacecraft is usually wound by a high silica cloth tape which is pre-impregnated.
The cloth belt winding technology mainly comprises four types of parallel winding, overlapping winding, vertical winding and oblique winding, wherein the oblique winding and the vertical winding have strong scouring resistance, but the technology is difficult to implement due to the fact that the outer side of the cloth belt is subjected to large deformation during winding. Although a large deformation amount can be obtained by carrying out 45-degree oblique cutting on the plain-woven carbon fiber cloth, the oblique-cut cloth belt cannot bear the tensile force, so that the tension of the cloth belt has to be reduced very low during oblique winding. For this purpose, special fabrics and 45-degree oblique warp knitted fabrics are specially designed and produced, wherein the weft yarns are carbon fibers or high silica fibers, the warp yarns are fibers with different elastic moduli, and the deformation rates of the fibers are gradually increased along the width direction of the cloth belt according to the modulus values. The special fabric with gradually changed deformation rate increases the deformation to a certain extent, and simultaneously reduces the final ablation resistance of the winding body because other fibers with far better high-temperature strength and ablation resistance than carbon fibers are used as warp yarns. Even if the technology is limited by the factors of the existing equipment, materials, processes and the like in the practical use process, the winding of the fixed bevel angle can be only carried out on the core mould with the diameter not greatly changed, and the bevel angle changing and the vertical winding are difficult to implement.
Disclosure of Invention
The invention aims to provide a device and a method for obliquely winding and winding a cloth belt, which aim to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cloth tape oblique winding device comprises a core mold, a compression roller and a cloth tape; the core die is used for winding a cloth belt, and the surface of the compression roller is in contact with the cloth belt wound on the core die and is used for compressing the cloth belt;
the core mold is a variable diameter core mold; the compression roller is of a multi-wheel-sheet structure, a plurality of wheel sheets are arranged side by side to form a cylindrical compression roller, and the surface of each wheel sheet is provided with a puncture needle.
Further, the cloth belts comprise a prepreg adhesive tape and a heat-resistant adhesive tape; the prepreg adhesive tape is adhered to the surface of the heat-resistant adhesive tape and is coiled to form a tape.
Further, the pre-impregnated adhesive tape is a 45-degree angle-cut carbon fiber pre-impregnated adhesive tape or a high silica pre-impregnated adhesive tape; the heat-resistant adhesive tape is an elastic adhesive tape.
Further, a rotating shaft is arranged at the center of the core mold, one side of the rotating shaft is connected with the machine head device, and the other side of the rotating shaft is connected with the tip of the tail frame; the wheel sheets are connected through shafts; the end part of the surface of the core mould is provided with an initial cone.
Furthermore, a laser heating device is arranged on the cloth feeding side of the press roller; and a cooling device is also arranged on the pressing side of the pressing roller.
Furthermore, the cooling device adopts dry ice or liquid nitrogen as an air cooling device of a cold source, and an air port of the air cooling device is over against a new winding surface which is just pressed and bonded into a whole.
Furthermore, a tape tearing device is arranged on the compression rear side of the compression roller, and a storage box is arranged below the tape tearing device.
Furthermore, a rotary cutter is arranged on the cloth feeding side of the press roller and driven by a servo motor in the axial position; the press roller is driven by a servo motor.
Further, the oblique winding method of the cloth belt comprises the following steps:
step 1, a cloth belt is wound from a starting cone of a core mold, a rotary cutter shear adjusts the width of the required cloth belt according to the designed thickness of a winding layer, and then a laser heating device heats the cloth belt to be compressed by a compression roller to soften glue to be preimpregnated by the cloth belt to be wound at a joint surface;
step 2, winding the cloth belt from a starting cone of the core mold, and rotating and pressing the cloth belt by a press roller under the driving of a servo motor to form a winding body on the core mold; meanwhile, the cooling device cools the new winding surface which is just pressed and bonded into a whole;
and 3, separating the heat-resistant adhesive tape on the tape from the pre-impregnated adhesive tape and storing the heat-resistant adhesive tape into a storage box by a tape tearing device on one side of the pressed compression roller, and stopping winding after the winding body is finished.
Compared with the prior art, the invention has the following technical effects:
the plain woven carbon fiber cloth is used as a basic material of the cloth belt, the specially-made cloth belt with the gradually-changed deformation rate is not needed, and meanwhile, the cloth belt is a heat-resistant adhesive tape adhered with the carbon fiber cloth, so that the heat-resistant adhesive tape has the elongation of the heat-resistant adhesive tape and the toughness, high temperature resistance and high strength of the carbon fiber cloth, the carbon fiber cloth can be perfectly attached to a core mold, and a complete high-strength ablation-resistant winding body is formed.
The compression roller is of a multi-wheel-sheet structure, the plurality of wheel sheets are arranged side by side to form the cylindrical compression roller, the surface of each wheel sheet is provided with the felting needle, and winding at different oblique angles can be realized by adopting the same compression roller under the driving of the servo motor, including vertical winding, and the winding contact surface is stable and has better winding effect.
The invention adopts the near-infrared laser heating device, measures the temperature through the far-infrared temperature measuring instrument and adjusts the output power of the light, can accurately control the temperature when the cloth belt is pressed, and can not heat the periphery.
The width of the cutting cloth belt before the compression roller can accurately control the thickness of the winding layer, mechanical processing is saved, and efficiency is improved.
Drawings
FIG. 1 is a schematic view showing a basic structure of a skewed cloth tape winder of the present invention;
FIG. 2 is a schematic view of the main structure of the winding trolley of the invention;
FIG. 3 is a schematic view of the obliquely wound tape structure according to the present invention;
FIG. 4 is a schematic view of the basic structure of the oblique-winding press roll of the present invention;
description of the figure parts: 1-core mould, 2-initial cone, 3-winding body, 4-winding trolley, 5-press roll, 6-cloth tape, 7-heating device, 8-cooling device, 9-tape tearing device, 10-storage box, 11-angle cutting carbon fiber cloth tape, 12-heat-resisting adhesive tape, 13-shaft, 14-wheel sheet, 15-pricking needle.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1 to 4, the mechanical part of the present invention mainly comprises four parts of a winding trolley, a trolley beam, a nose device and a tail frame center, and is characterized in that: the winding dolly contains compression roller, Z to and X to motion servo motor, compression roller rotation angle servo motor, heating device, cooling device and tear tape unit and rotary cutter and cut, adopts special strap to fix the oblique angle and the winding of bevel angle change and can control winding thickness.
The cloth belt is formed by adhering a 45-degree angle-cut carbon fiber prepreg cloth belt or a high-silica prepreg cloth belt on a heat-resistant adhesive tape and coiling the adhesive tape, wherein the heat-resistant adhesive tape has larger elastic elongation.
The compression roller comprises a group of wheel sheets with short axial lengths, each thorn wheel sheet can independently freely rotate around the same shaft, and short thorns are uniformly arranged on the outer circle of each wheel sheet according to a certain distance.
A laser heating device is arranged on the cloth feeding side of the compression roller to instantly heat the cloth belt to be compressed by the compression roller and the wound cloth belt on the winding body, so that the glue to be pre-impregnated at the joint surface is softened;
and a tape tearing device is arranged on one side of the compression roller after compression to separate and store the heat-resistant adhesive tape on the tape from the carbon fiber preimpregnated adhesive tape.
And a cooling device is also arranged on the compression side of the compression roller, the cooling device adopts an air cooling device with dry ice or liquid nitrogen as a cold source, and an air port of the air cooling device is over against a new winding surface which is just pressed and bonded into a whole.
A rotary cutter is arranged on the cloth feeding side of the press roller, the position of the rotary cutter is driven by an axial position servo motor, and the required width can be automatically adjusted according to the designed thickness of a winding layer. The rotary cutter scissors also comprise a scrap edge storage box.
The compression roller servo mechanism can ensure that the compression roller has constant axial feed, and the front edge of the compression roller can be always very close to the outer surface of the core mold and keeps a constant angle with a generatrix of an adjacent point of the core mold.
Example 1:
in the embodiment, a special winding machine is adopted, the mechanical part of the special winding machine mainly comprises four parts, namely a winding trolley 4, a trolley cross beam, a machine head device and a tail frame tip, wherein the winding trolley 4 comprises a press roller 5, Z-direction and X-direction movement servo motors, a press roller rotation angle servo motor, a heating device 7, a cooling device 8, a tape tearing device and a rotary cutter shear, and a spindle motor of the machine head device and all the servo motors of the winding trolley 4 are subjected to multi-axis linkage control by a special control computer.
The special cloth belt 6 is adhered to a 0.2mm thick equal-width TPE or TPEE heat-resistant elastic adhesive tape 12 through a 45-degree bias-cut pre-dipped 1k carbon fiber cloth belt 11, and the special cloth belt 6 can be subjected to large elastic deformation in the winding process.
The winding trolley 4 is arranged on a Z-direction sliding rail, a moving mechanism on the winding trolley enables the compression roller 5 to move in the X direction and the Z direction, and the shaft of the compression roller can also rotate to change the angle beta of the shaft of the compression roller. The press roller 5 is composed of a group of wheel sheets 14 with the outer diameter of 30mm and the thickness of 3mm, the wheel sheets 14 are made into oil-containing lubricating materials by vacuum impregnation of lubricating oil after brass-based powder metallurgy die pressing sintering, a certain number of pricking pins 15 with the height of 1.5mm are embedded in the outer circumference of each wheel sheet, and each wheel sheet 14 can independently and freely rotate around a shaft 13. The main function of the pricker 15 is to reliably pull the cloth belt 6, and simultaneously, the pricker is also used for pricking the winding body 3 in the pressing process, so that the interlayer bonding force is further improved.
In order to ensure the tightness of the winding body 3, a laser heating device 7 is arranged on the cloth feeding side of the compression roller 5, and is used for instantly heating the pre-impregnated carbon fiber cloth belt 11 on the cloth belt 6 to be compressed by the compression roller 5 and the surface of the area to be wound on the winding body 3 so as to soften the glue pre-impregnated by the carbon fiber cloth 11; the laser heating device adopts a 300W near-infrared solid laser as a heating source, a non-contact far-infrared optical temperature measuring sensor is configured to measure the temperature of a heated cloth belt in real time and feed back the temperature to the controller of the laser tube, and the controller carries out closed-loop regulation on the output power of the laser tube to realize accurate temperature control.
The tape tearing device 9 provided on the post-pressing side of the press roller 5 separates the heat-resistant adhesive tape 12 on the tape 6 from the carbon fiber prepreg tape 11 and drops it into the storage box 10.
In order to ensure that the winding body 3 does not deform in the winding process, a cooling device 8 is further arranged on the compression side of the compression roller 5, dry ice is used as a cold source of the cooling device, the gasified low-temperature carbon dioxide is adjusted by a control valve to send out air speed, and an air port of the cooling device is opposite to a new winding surface on the winding body 3.
In order to control the winding thickness of the cloth belt 6 in real time, a rotary cutter is arranged before the cloth belt 6 enters the press roller 5, the position of the rotary cutter is driven by an axial position servo motor, and the width of the required cloth belt can be automatically adjusted according to the designed winding balance thickness. The rotary cutter scissors also comprise a scrap edge storage box.
The motion of the winding trolley of the winding machine is controlled by a special control computer in a multi-axis linkage way, and the front edge of the compression roller 5 can be always very close to the outer surface of the core mould 1 by controlling the motion servo motors of all axes of the winding trolley and keeps a set angle with the tangent line of the generatrix of the adjacent point of the core mould 1.
The winding machine adopts a special cloth belt, can carry out fixed bevel and variable bevel winding according to a designed program and can control the winding thickness, and can be used for winding an anti-ablation layer on the inner wall of a rocket nozzle and a heat-insulation protective nose cone of an atmospheric aircraft.
Claims (9)
1. A cloth tape oblique winding device is characterized by comprising a core mold (1), a pressing roller (5) and a cloth tape (6); the core mold (1) is used for winding and arranging a cloth belt (6), and the surface of the compression roller (5) is in contact with the cloth belt (6) wound on the core mold (1) and is used for compressing the cloth belt (6);
the core mould (1) is a variable-diameter core mould; the pressing roller (5) is of a multi-wheel-sheet structure, a plurality of wheel sheets (14) are arranged side by side to form the cylindrical pressing roller (5), and the surface of each wheel sheet (14) is provided with a puncture needle (15).
2. A tape twirling winding apparatus according to claim 1, wherein the tapes (6) comprise a prepreg tape (11) and a heat-resistant tape (12); the prepreg adhesive tape (11) is adhered to the surface of the heat-resistant adhesive tape (12) and is coiled to form the tape (6).
3. The tape bias winding apparatus according to claim 2, wherein the prepreg tape (11) is a 45 ° bias cut carbon fiber prepreg tape or a high silica prepreg tape; the heat-resistant adhesive tape is an elastic adhesive tape.
4. The cloth tape oblique winding equipment according to claim 1, wherein a rotating shaft is arranged at the center of the core mold (1), one side of the rotating shaft is connected with a machine head device, and the other side of the rotating shaft is connected with a tailstock center; the wheel sheets (14) are connected through a shaft (13); the end part of the surface of the core mould (1) is provided with an initial cone (2).
5. A tape bias-winding apparatus according to claim 1, wherein a laser heating device (7) is provided at a cloth feeding side of the press roller (5); and a cooling device (8) is also arranged on the pressing side of the pressing roller.
6. The cloth tape oblique winding equipment according to claim 1, wherein the cooling device (8) adopts an air cooling device with dry ice or liquid nitrogen as a cold source, and an air port of the air cooling device is opposite to a new winding surface which is just pressed and adhered into a whole.
7. A tape bias-winding apparatus according to claim 1, wherein a tape tearing device (9) is provided at a pressing rear side of the pressing roller (5), and a storage box (10) is provided below the tape tearing device (9).
8. The tape bias-winding apparatus according to claim 1, wherein a rotary cutter is provided at a cloth feeding side of the press roller (5), the rotary cutter being driven by a servo motor at an axial position; the press roller (5) is driven by a servo motor.
9. A tape bias winding method according to any one of claims 1 to 8, comprising the steps of:
step 1, starting winding of a cloth belt from a starting cone (2) of a core mold (1), adjusting the width of the required cloth belt according to the designed thickness of a winding layer by a rotary cutter shear, and then heating the cloth belt to be compressed by a compression roller by a laser heating device (7) to soften glue to be preimpregnated by the cloth belt at a joint surface;
step 2, winding the cloth belt from a starting cone (2) of the core mold (1), and rotationally pressing the cloth belt (6) by a press roller (5) under the driving of a servo motor to form a winding body (3) on the core mold (1); meanwhile, the cooling device (8) cools the new winding surface which is just pressed and bonded into a whole;
and 3, separating the heat-resistant adhesive tape on the tape from the pre-impregnated adhesive tape and storing the heat-resistant adhesive tape into a storage box by a tape tearing device on one side of the pressed compression roller, and stopping winding after the winding body (3) is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110432501.7A CN113246492B (en) | 2021-04-21 | 2021-04-21 | Cloth belt oblique winding equipment and winding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110432501.7A CN113246492B (en) | 2021-04-21 | 2021-04-21 | Cloth belt oblique winding equipment and winding method |
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| Publication Number | Publication Date |
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| CN113246492A true CN113246492A (en) | 2021-08-13 |
| CN113246492B CN113246492B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110432501.7A Active CN113246492B (en) | 2021-04-21 | 2021-04-21 | Cloth belt oblique winding equipment and winding method |
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| CN (1) | CN113246492B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551889A (en) * | 2023-07-11 | 2023-08-08 | 山东中恒景新碳纤维科技发展有限公司 | Fiber prepreg paving method |
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2021
- 2021-04-21 CN CN202110432501.7A patent/CN113246492B/en active Active
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551889A (en) * | 2023-07-11 | 2023-08-08 | 山东中恒景新碳纤维科技发展有限公司 | Fiber prepreg paving method |
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| CN113246492B (en) | 2022-11-29 |
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