CN112606431A - Rolling device for forming multi-path thread laying head curved surface - Google Patents
Rolling device for forming multi-path thread laying head curved surface Download PDFInfo
- Publication number
- CN112606431A CN112606431A CN202011380036.9A CN202011380036A CN112606431A CN 112606431 A CN112606431 A CN 112606431A CN 202011380036 A CN202011380036 A CN 202011380036A CN 112606431 A CN112606431 A CN 112606431A
- Authority
- CN
- China
- Prior art keywords
- pressing
- rolling
- curved surface
- rectangular
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/386—Automated tape laying [ATL]
-
- 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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a rolling device for forming a curved surface of a multi-path thread laying head, belonging to the technical field of advanced composite material automatic manufacturing. Including two backup pads that set up relatively and through pressing the axle and installing a plurality of compression roller units between two backup pads, compression roller unit includes: the bearing seat is provided with a rectangular through groove arranged in the vertical direction and a guide plunger piston arranged in the direction of the rectangular through groove, the pressing shaft penetrates through the rectangular through groove, and the guide plunger piston penetrates through the pressing shaft; the force bearing spring is positioned in the rectangular through groove, is sleeved on the guide plunger and has the top part propped against the pressing shaft; the rolling bearing is arranged on the bearing seat; and the high-temperature-resistant lining layer is arranged on the circumferential surface of the rolling bearing. When laying a curved mold, each of the roll units can independently compact the corresponding region according to the shape change of each of the low-curvature surfaces, and the pressure of the roll unit can be floated within a controlled small range throughout the process.
Description
Technical Field
The invention relates to the technical field of advanced composite material automatic manufacturing, in particular to a rolling device for forming a multi-path thread laying head curved surface.
Background
The automated tape laying technique is an additive manufacturing technique facing advanced composite materials. And (3) paving and pressing the prepreg tapes with certain width on the die by using an automatic tape paving machine, heating the prepreg tapes to a viscous state before paving each layer of prepreg tapes, compacting the prepreg tapes into the paved layer by using a rolling device, and cooling and solidifying to form a paved middle layer. Finally, the manufacturing of the composite material formed part is completed in a laminating mode.
The rolling parts in the existing tape laying head lay planar structural parts, and the pressure during laying can be relatively and stably controlled in the laying process. The laying pressure directly affects the quality of the layup. Laying pressure is too small, the prepreg tape can slide, the laying position is inaccurate, the fiber angle deviation is too large, and too large gaps and overlapping are easy to occur between the tapes. The interlayer gas cannot be expelled, and bubbles are easily generated, so that the formed part is easy to have defects; the laying pressure is too high, on the one hand, a greater traction force is required to drive the prepreg tape, so that the tension of the tape is too high, and on the other hand, the service life of the press roll is reduced.
In the process of laying a curved surface mold, the prepreg tape with a large width is often slit along the fiber direction to form a plurality of mutually parallel prepreg filaments, and then the prepreg filaments are laid on each small section of curved surface according to respective predetermined paths. Because the curvature of the die laid by each small section of rolling mechanism is different, a whole section of non-deformable rigid press roller is used, and it is difficult to ensure that each section of prepreg filaments to be laid is tightly pressed on the die, so that various defects such as gaps or bubbles are caused. How to realize the self-adaptive adjustment of the rolling part on the surface shape of the die so as to ensure that the rolling of the prepreg filaments at each section is realized under the condition of small-range pressure change is a problem which still needs to be solved at present.
In the existing rolling device for curved surface forming, one method is to use an air spring air bag, control the output pressure by controlling the pressure in the air bag, and simultaneously utilize the compressibility of air to make each small segment of compression roller float up and down in order to adapt to the change of the curved surface. The method can carry out effective pressure control, but the whole mechanical mechanism is complex, a specific air bag structure is required, and the cost is higher. The other method is that a flexible compression roller is adopted in the whole section, a multi-point cylinder is used for applying pressure, and the full-spread coverage of the curved surface mold is realized by depending on the deformability of the flexible compression roller. Because the rubber material is mostly adopted by the general flexible press roll, and the working temperature of the high-temperature resistant rubber material is below 300 ℃, the method can be used for effectively laying some composite materials with lower curing temperature, but for other prepreg tape materials with the curing temperature of above 300 ℃ in the laying and pressing process, the service life of the press roll can be obviously reduced, and even effective laying and rolling are difficult to carry out.
Disclosure of Invention
The invention aims to provide a rolling device for forming a curved surface of a multi-path fiber laying head, which can realize more uniform stress of a prepreg tape during curved surface laying and has higher laying quality.
In order to achieve the above object, the rolling device for forming a curved surface of a multi-path thread laying head provided by the invention comprises two support plates arranged oppositely and a plurality of press roll units arranged between the two support plates through press shafts, wherein the press roll units comprise:
the bearing seat is provided with a rectangular through groove arranged in the vertical direction and a guide plunger piston arranged in the direction of the rectangular through groove, the pressing shaft penetrates through the rectangular through groove, and the guide plunger piston penetrates through the pressing shaft;
the bearing spring is positioned in the rectangular through groove, is sleeved on the guide plunger and has the top part propped against the pressing shaft;
the rolling bearing is arranged on the bearing seat;
and the high-temperature-resistant lining layer is arranged on the circumferential surface of the rolling bearing.
In the technical scheme, when the pre-impregnated tape is laid, pressure is applied to the bearing spring through the pressing shaft and is transmitted to the bearing seat, and then the pressure is applied to the pre-impregnated tape to be compacted through the rolling bearing. Meanwhile, the outer layer of the rolling bearing can freely rotate relative to the bearing seat according to the laying speed of the tape laying head, so that the whole rolling action is completed. When laying a curved mold, each of the roll units can independently compact the corresponding region according to the shape change of each of the small-curvature surfaces, and the pressure of the roll unit floats within a controlled small range throughout the process.
Optionally, in an embodiment, vertical linear sliding rails are arranged on the two support plates, and a connecting arm for connecting the pressing shaft is movably mounted on the linear sliding rails.
Optionally, in an embodiment, a tension spring for balancing gravity is disposed between the linear slide rail and the connecting arm. Through the effect of extension spring keep balance, at waste recovery and the arm removal location shop clearance in-process, can be with compression roller unit lifting, lay the preparation for next time.
Optionally, in an embodiment, a pressing mechanism for applying pressing force to the pressing shaft is arranged between the two supporting plates; the pressing mechanism comprises a rotating shaft arranged between the two supporting plates, a torque pressing plate arranged on the rotating shaft and a driver for driving the rotating shaft to rotate.
The driver includes servo motor and increases the case of turning round, utilizes servo motor can the dead characteristic of band-type brake lock, provides static stable moment of torsion, through the moment of torsion clamp plate, converts the moment of torsion into pressure to the realization provides stable pressure to the mould surface or has laid the bottom.
Optionally, in an embodiment, the rotating shaft penetrates through the two supporting plates, and the two sides of the supporting plates are axially positioned by the curved sleeve and the end cover respectively.
Optionally, in an embodiment, one end of the torque pressing plate is in interference fit with the rotating shaft, and the other end of the torque pressing plate is pressed against the pressing shaft. When the torque applied to the rotating shaft changes, the torque pressing plate fixed in the circumferential direction is driven to rotate, the other end of the torque pressing plate has a tendency of ascending or descending, and the pressure applied to the pressing shaft is changed.
Optionally, in an embodiment, the torque pressing plate includes two pressing plates respectively pressing against two ends of the pressing shaft. The stress of the pressure shaft can be balanced.
Optionally, in an embodiment, the pressing shaft is provided with at least two pressing roller units, and all the pressing roller units are mounted on the pressing shaft and then axially positioned by using the positioning sleeve, and can independently float up and down.
Optionally, in an embodiment, a gasket is disposed between the bottom end of the force bearing spring and the rectangular through groove.
Optionally, in one embodiment, the guide plunger is a screw provided on the bearing seat.
Compared with the prior art, the invention has the advantages that:
the rolling device for forming the multi-path thread laying head curved surface can realize forming and manufacturing of composite material structural members such as planes, curved surfaces with small curvature, revolution surfaces and the like, and can realize pressure adjustment according to requirements in the forming process. The application objects can be oriented to a wider range of composite material prepreg tapes and prepreg silks, and the technical problem of low-cost and high-performance rolling is solved to a certain extent.
Drawings
FIG. 1 is a schematic overall structure diagram of a rolling device for multi-path laying head curved surface forming in the embodiment of the invention;
FIG. 2 is a front view of a rolling device for forming a multi-path laying head curved surface in an embodiment of the invention;
fig. 3 is a schematic structural view of a press roll unit in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the following embodiments and accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the word "comprise" or "comprises", and the like, in the context of this application, is intended to mean that the elements or items listed before that word, in addition to those listed after that word, do not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Referring to fig. 1 to 3, the rolling device for forming the multi-path filament-laying head curved surface in the present embodiment includes two support plates 101 and 102 disposed opposite to each other and four press roll units 200 installed between the two support plates through press rolls 103.
The two support plates 101 and 102 are provided with vertical linear slide rails 104, and the linear slide rails 104 are movably provided with connecting arms 105 for connecting the pressing shafts 103. A tension spring 106 for balancing gravity is arranged between the linear slide rail 104 and the connecting arm 105.
A pressing mechanism for applying pressing force to the pressing shaft 103 is further arranged between the two support plates 101 and 102, and the pressing mechanism comprises a rotating shaft 301 arranged between the two support plates, two torque pressing plates 302 and 303 fixed on the rotating shaft 301, and a driver for driving the rotating shaft 301 to rotate. The rotating shaft 301 passes through the two supporting plates 101 and 102, and is positioned on the two sides of the supporting plates and axially positioned by a curved sleeve and an end cover respectively.
The driver of the embodiment comprises a servo motor 304 and a torque increasing box 305, and by utilizing the characteristic that the servo motor 304 can be locked by a brake, static stable torque is provided, and the torque is converted into pressure through a torque pressing plate, so that stable pressure is provided for the surface of a mold or a laid bottom layer.
One end of each of the two torque pressing plates 302 and 303 is in interference fit with the rotating shaft 301, and the other end of each torque pressing plate is pressed against the pressing shaft 103.
In this embodiment, the platen roller unit 200 includes:
the bearing seat 201 is provided with a rectangular through groove 202 arranged along the vertical direction and a guide plunger 203 arranged along the rectangular through groove 202, the pressing shaft 103 penetrates through the rectangular through groove 202, and the guide plunger 203 penetrates through the pressing shaft 103; the guide plunger 203 is a screw arranged on the bearing seat;
the bearing spring 204 is positioned in the rectangular through groove 202, is sleeved on the guide plunger 203, and the top of the bearing spring props against the pressing shaft 103; a gasket 205 is arranged between the bottom end of the bearing spring 204 and the rectangular through groove 202;
a rolling bearing 206 mounted on the bearing housing 201;
a high temperature resistant lining layer 207 provided on the circumferential surface of the rolling bearing 206;
the four press roll units 200 are mounted on the press shaft 103 and then axially positioned by using the positioning sleeve.
Claims (10)
1. The utility model provides a rolling press device that is used for fashioned rolling press of first curved surface of multichannel shop silk, its characterized in that, include two backup pads of relative setting and install a plurality of compression roller units between two backup pads through the last item, the compression roller unit includes:
the bearing seat is provided with a rectangular through groove arranged in the vertical direction and a guide plunger piston arranged in the direction of the rectangular through groove, the pressing shaft penetrates through the rectangular through groove, and the guide plunger piston penetrates through the pressing shaft;
the bearing spring is positioned in the rectangular through groove, is sleeved on the guide plunger and has the top part propped against the pressing shaft;
the rolling bearing is arranged on the bearing seat;
and the high-temperature-resistant lining layer is arranged on the circumferential surface of the rolling bearing.
2. The rolling device for the curved surface forming of the multi-path fiber placement heads according to claim 1, wherein two support plates are provided with vertical linear slide rails, and connecting arms for connecting the pressing shafts are movably mounted on the linear slide rails.
3. The rolling press device for multi-path filament spreading head curve forming according to claim 2, wherein a tension spring for balancing gravity is arranged between the linear slide rail and the connecting arm.
4. The rolling device for multi-path filament spreading head curve forming according to claim 3, wherein a pressing mechanism for applying pressing force to the pressing shaft is arranged between the two supporting plates, and the pressing mechanism comprises a rotating shaft arranged between the two supporting plates, a torque pressing plate fixed on the rotating shaft, and a driver for driving the rotating shaft to rotate.
5. The rolling press device for curved surface forming of multi-way fiber placement heads as claimed in claim 4, wherein the shaft penetrates through two support plates, and the two sides of the support plates are axially positioned by a curved sleeve and an end cap respectively.
6. The rolling press for forming the curved surface of the multi-way fiber placement head as claimed in claim 4, wherein one end of the torque pressing plate is in interference fit with the rotating shaft, and the other end of the torque pressing plate is pressed against the pressing shaft.
7. The rolling press for forming a curved surface of a multi-pass filament spreading head as claimed in claim 6, wherein the torque pressing plate comprises two pressing plates respectively pressing against two ends of the pressing shaft.
8. The rolling device for the curved surface forming of the multi-path fiber placement heads according to claim 1, wherein the pressing shaft is provided with at least two pressing roller units, and all the pressing roller units are axially positioned by a positioning sleeve after being arranged on the pressing shaft and can independently float up and down.
9. The rolling press device for forming the curved surface of the multi-way fiber placement head as claimed in claim 1, wherein a gasket is arranged between the bottom end of the bearing spring and the rectangular through groove.
10. The rolling press for multipass filament head profiling according to claim 1, wherein the guide plungers are screws provided on the bearing blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011380036.9A CN112606431A (en) | 2020-11-30 | 2020-11-30 | Rolling device for forming multi-path thread laying head curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011380036.9A CN112606431A (en) | 2020-11-30 | 2020-11-30 | Rolling device for forming multi-path thread laying head curved surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112606431A true CN112606431A (en) | 2021-04-06 |
Family
ID=75229757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011380036.9A Pending CN112606431A (en) | 2020-11-30 | 2020-11-30 | Rolling device for forming multi-path thread laying head curved surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112606431A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005311143A1 (en) * | 2004-12-02 | 2006-06-08 | Eurocopter | Device for the drape forming of pre-impregnated flexible bands |
| US20120073750A1 (en) * | 2009-03-23 | 2012-03-29 | Airbus Operations Gmbh | Pressing apparatus and pressing and depositing system for depositing a sliver on a double-curved surface, and use and method |
| DE102015206858A1 (en) * | 2015-04-16 | 2016-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for producing flat components with fiber-reinforced plastic |
| CN208801615U (en) * | 2018-08-20 | 2019-04-30 | 宜昌宏晨包装有限公司 | A kind of pressure roller spacing adjusting device |
| CN110316399A (en) * | 2018-03-30 | 2019-10-11 | 波音公司 | Check device and method |
-
2020
- 2020-11-30 CN CN202011380036.9A patent/CN112606431A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005311143A1 (en) * | 2004-12-02 | 2006-06-08 | Eurocopter | Device for the drape forming of pre-impregnated flexible bands |
| US20120073750A1 (en) * | 2009-03-23 | 2012-03-29 | Airbus Operations Gmbh | Pressing apparatus and pressing and depositing system for depositing a sliver on a double-curved surface, and use and method |
| DE102015206858A1 (en) * | 2015-04-16 | 2016-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for producing flat components with fiber-reinforced plastic |
| CN110316399A (en) * | 2018-03-30 | 2019-10-11 | 波音公司 | Check device and method |
| CN208801615U (en) * | 2018-08-20 | 2019-04-30 | 宜昌宏晨包装有限公司 | A kind of pressure roller spacing adjusting device |
Non-Patent Citations (1)
| Title |
|---|
| 张蕊华 等: "《机械本体结构设计及应用》", 30 September 2019, 复旦大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205058644U (en) | A a modularization shop silk head for automatic shop of combined material is put | |
| CN207772242U (en) | A kind of mobile continuous compression molding device of brake block | |
| CN107639930B (en) | Accurate adjustment mechanism of light guide plate hot pressing rubber roll and steel roll interval | |
| CN103407152B (en) | Fiber conduction device for carbon fiber winding machine | |
| CN205631433U (en) | Laminating drum of secondary forming machine for semisteel radial tire | |
| CN204712627U (en) | One changes rail mounted tipping paper gilding machine printing plate plate rack easily | |
| CN103950264B (en) | A kind of cellular thermoplastic sheet material and production method thereof and two Steel-belt Continuous Press | |
| CN107234817B (en) | It is a kind of can accurate piddler compaction apparatus controllable in real time | |
| CN112606431A (en) | Rolling device for forming multi-path thread laying head curved surface | |
| CN104802241B (en) | The adjustable continuous flat press of entrance | |
| WO2022133721A1 (en) | Adjustable pressure rollers for calender | |
| CN106976298B (en) | Automatic laying device for composite prepreg tape | |
| CN203792851U (en) | Double-steel-belt continuous press for producing thermoplastic honeycomb plates and steel belt mechanism of double-steel-belt continuous press | |
| CN203792845U (en) | Double-steel-belt continuous press for producing thermoplastic honeycomb plates | |
| CN201224212Y (en) | Combined antisticking roller | |
| CN206605883U (en) | A kind of compounding machine cools down smooth roll sychronisation | |
| CN203792846U (en) | Double-steel-belt continuous pressing machine used for producing thermoplastic honeycomb plate | |
| CN203792848U (en) | Double-steel-belt continuous pressing machine used for producing honeycomb plate | |
| CN221250162U (en) | High-precision automatic hot-stamping machine | |
| CN111074466A (en) | Press polish forming machine | |
| CN103950263B (en) | Honeycomb board and preparation, two Steel-belt Continuous Press and cooling and shaping mechanism thereof | |
| CN201385432Y (en) | Combined rolling mechanism of tire molding machine | |
| CN205668453U (en) | Multiaspect formula flat-panel printer | |
| CN216127604U (en) | Be used for calendering equipment to reload hold-down mechanism | |
| CN211467178U (en) | Liftable calender |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |