CN102423918B - Automatic fiber placement auxiliary apparatus capable of resisting twisting force of prepreg strands - Google Patents
Automatic fiber placement auxiliary apparatus capable of resisting twisting force of prepreg strands Download PDFInfo
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- CN102423918B CN102423918B CN2011102788491A CN201110278849A CN102423918B CN 102423918 B CN102423918 B CN 102423918B CN 2011102788491 A CN2011102788491 A CN 2011102788491A CN 201110278849 A CN201110278849 A CN 201110278849A CN 102423918 B CN102423918 B CN 102423918B
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Abstract
The invention relates to an automatic fiber placement auxiliary apparatus capable of resisting the twisting force of prepreg strands, which belongs to the technical field of automatic fiber placement and formation. The invention is characterized in that: an intermediate linking guiding device is employed in the process of conveying yarn from a yarn box to a fiber placing head. According to the invention, the intermediate linking guiding device is arranged between the fiber placing head and a yarn guide wheel and carries out homodromous rotation as the fiber placing head rotates; the rotation of the intermediate linking guiding device and the fiber placing head is controlled by a speed-changing gear box, and the transmission ratio of the two is controlled by the speed ratio of the speed-changing gear box and the radii of two direct-coupled gears; appropriate gear coupling can be selected according to the position of the guiding device so as to obtain a proper transmission ratio. The apparatus provided in the invention can effectively alleviate the twisting force of prepreg strands resulting from the rotation of the fiber placing head in the process of fiber placement, thereby substantially improving the quality of fiber placement.
Description
Technical field
The invention belongs to composite automatic placement molding technical field.
Background technology
" low-cost, high-performance " is the main development direction of current composite technology, and various low-cost manufacturing techniques arise at the historic moment in recent years.Wherein, the technology of fiber placement for composite materials forming technique is a kind of full-automatic manufacturing technology grown up on existing winding and automatic placement basis, is the general designation of Technology About Automatic Fiber Placement technology and automatic arrowband laying forming technology.The automatic fiber placement forming technique has both the advantage of Filament-wound Machine and automated tape-laying, but more advanced than Filament-wound Machine and automated tape-laying, stronger to the adaptability of goods.In the fiber placement moulding, adopt the do not doffed constraint of stability of prepreg and low-tension, can select the laying direction according to designing requirement; Simultaneously, every rhizoid bundle has independent increase and cutting function, is not subjected to periodically constraint, can realize body and the design of various laying; And, adopt the placement head of multifibres bundle can the wider silk ribbon (the maximum broadband as Viper machine 24 tow can reach 75mm, near the automated tape-laying width) of lay, greatly enhance productivity.But because the fiber placement former adopts multivariant placement head, in the piddler process, due to the rotation of placement head, easily produce the stubborn strength of preimpregnation yarn, greatly affect spreading.
Summary of the invention
The present invention is intended to propose a kind of automatic fiber placement servicing unit that prevents the stubborn strength of preimpregnation yarn, the process of yarn from the yarn case to the piddler head, accepts guider in the middle of adopting.Compare existing piddler equipment, this servicing unit can be alleviated the stubborn strength of preimpregnation yarn effectively, greatly improves the piddler quality.
A kind of anti-preimpregnation yarn is twisted the automatic fiber placement servicing unit of strength, it is characterized in that: in the middle of this servicing unit is called again, accept guider, it is installed between the piddler head and yarn guiding wheel of automatic fiber placement device, is comprised of auxiliary Yarn guide mechanism and assisted bias mechanism; Above-mentioned assisted bias mechanism comprises motor, the 3rd gear, the 4th gear, speed-changing gear box; Above-mentioned the 3rd gear and the 4th gear by with speed-changing gear box in meshing relation rotating in same direction under the drive of motor of transition gear group; If the gearratio i of the 3rd gear and the 4th gear
3,
Above-mentioned auxiliary Yarn guide mechanism is controlled by the 3rd gear by drive connection, establishes
Above-mentioned piddler head is controlled by the 4th gear by drive connection, establishes
The gearratio of transition gear group is i
3The resultant gear ratio of auxiliary Yarn guide mechanism and piddler head is
Due to the natural tendency for keeping the preimpregnation yarn to reverse, the rotation ratio of auxiliary Yarn guide mechanism and piddler head should meet following formula again:
i
1, i
2, i
3 
Above-mentioned a is the distance between piddler head (1) and auxiliary Yarn guide mechanism (2); Above-mentioned b is the distance between auxiliary Yarn guide mechanism (2) and yarn guiding wheel (4); Above-mentioned α
The 3rd gearThe corner of the 3rd gear, α
The 4th gearThe corner of the 4th gear, α
Auxiliary Yarn guide mechanismThe corner of auxiliary Yarn guide mechanism, α
The piddler headIt is the corner of piddler head.
The present invention can be by the torsion attitude of effective maintenance preimpregnation sand, and is unlikely to distortion, and can realize by the flexible proportioning of gear the requirement of gearratio, and the space of simultaneous adaptation assisted bias mechanism and auxiliary Yarn guide mechanism is arranged.
The resultant gear ratio scope of auxiliary Yarn guide mechanism and piddler head is taken as
When a piddler corner was larger, the amplitude that the preimpregnation yarn reverses can be larger, if will assist Yarn guide mechanism to be placed in two ends, its auxiliary guide DeGrain, do not reach the anti-effect of turning round of desirable guide.
The said gear gearbox can be meshed transmission gear or tooth-like belt transmission.The drive connection of above-mentioned auxiliary Yarn guide mechanism and the 3rd gear can be meshed transmission gear or tooth-like belt transmission.The drive connection of above-mentioned piddler head and the 4th gear can be meshed transmission gear or tooth-like belt transmission.According to the space of piddler head, arrange and the Whole Equipment outward appearance, can select flexibly meshed transmission gear or tooth-like belt transmission.General meshed transmission gear is compact, and the tooth-like belt transmission is conducive to the layout on space.
The accompanying drawing explanation
Fig. 1: automatic fiber placement servicing unit schematic diagram;
The top view of Fig. 2: Fig. 1;
Fig. 3: the first assisted bias schematic diagram of mechanism;
Fig. 4: the second assisted bias schematic diagram of mechanism;
Number in the figure title: 1, piddler head, 2, auxiliary Yarn guide mechanism, 3, the yarn bundle, 4, yarn guiding wheel, the 5, the 3rd gear, the 6, first gear, the 7, the 4th gear, the 8, second gear, 9, speed-changing gear box, 10, motor, the 11, the 5th gear.
The specific embodiment
Fig. 1, Fig. 2 are automatic fiber placement servicing unit schematic layout pattern, and it is installed between the piddler head and yarn guiding wheel of automatic fiber placement device, is comprised of auxiliary Yarn guide mechanism 2 and assisted bias mechanism.
Fig. 3 is the first assisted bias schematic diagram of mechanism; This assisted bias mechanism is comprised of the 3rd gear 5, the 4th gear 7, speed-changing gear box 9, motor 10.The first gear 6, the second gear 8 are installed in speed-changing gear box 9.The second gear 8 and the 4th gear 7 external toothings, the first gear 6 and the 3rd gear 5 external toothings, the transmission of driven by motor the second gear 8 and the first gear 6, and then drive the 3rd gear 5 and the 4th gear 7.Wherein, gear 5 drives the rotation of guider, and gear 7 drives the rotation of piddler head.Due to meshing relation, the 3rd gear 5 and the 4th gear 7 are in the same way surely than transmission.
Fig. 4 is the second assisted bias schematic diagram of mechanism; This assisted bias mechanism is comprised of the 3rd gear 5, the 4th gear 7, speed-changing gear box 9, motor 10.The first gear 6, the second gear 8, the 5th gear 11 are installed in speed-changing gear box 9.The second gear 8, the 5th gear 11 and the 4th gear 7 external toothings, the first gear 6 and the interior engagement of the 3rd gear 5, the transmission of driven by motor the second gear 8 and the first gear 6, and then drive the 3rd gear 5 and the 4th gear 7.Wherein, gear 5 drives the rotation of guider, and gear 7 drives the rotation of piddler head.Due to meshing relation, the 3rd gear 5 and the 4th gear 7 are in the same way surely than transmission.
Claims (5)
1. an anti-preimpregnation yarn is twisted the automatic fiber placement servicing unit of strength, it is characterized in that:
In the middle of this servicing unit is called again, accept guider, it is installed between the piddler head (1) and yarn guiding wheel (4) of automatic fiber placement device, is comprised of auxiliary Yarn guide mechanism (2) and assisted bias mechanism;
Above-mentioned assisted bias mechanism comprises motor (10), the 3rd gear (5), the 4th gear (7), speed-changing gear box (9); Above-mentioned the 3rd gear (5) and the 4th gear (7) by with speed-changing gear box (9) in meshing relation rotating in same direction under the drive of motor (10) of transition gear group; If the gearratio i of the 3rd gear (5) and the 4th gear (7)
3,
Above-mentioned auxiliary Yarn guide mechanism (2) is controlled by the 3rd gear (5) by drive connection, establishes
Above-mentioned piddler head (1) is controlled by the 4th gear (7) by drive connection, establishes
The gearratio of transition gear group is i
3The resultant gear ratio of auxiliary Yarn guide mechanism and piddler head is
Due to the natural tendency for keeping the preimpregnation yarn to reverse, the rotation ratio of auxiliary Yarn guide mechanism and piddler head should meet following formula again:
I
1, i
2, i
3Meet
Above-mentioned a is the distance between piddler head (1) and auxiliary Yarn guide mechanism (2);
Above-mentioned b is the distance between auxiliary Yarn guide mechanism (2) and yarn guiding wheel (4);
Above-mentioned α
The 3rd gearThe corner of the 3rd gear, α
The 4th gearThe corner of the 4th gear, α
Auxiliary Yarn guide mechanismThe corner of auxiliary Yarn guide mechanism, α
The piddler headIt is the corner of piddler head.
2. according to the anti-preimpregnation yarn of claim 1, twist the automatic fiber placement servicing unit of strength, it is characterized in that: the resultant gear ratio scope of auxiliary Yarn guide mechanism and piddler head is taken as
3. according to the anti-preimpregnation yarn of claim 1, twist the automatic fiber placement servicing unit of strength, it is characterized in that: speed-changing gear box is meshed transmission gear or tooth-like belt transmission.
4. according to the anti-preimpregnation yarn of claim 1, twist the automatic fiber placement servicing unit of strength, it is characterized in that: above-mentioned auxiliary Yarn guide mechanism (2) is meshed transmission gear or tooth-like belt transmission with the drive connection of the 3rd gear (5).
5. according to the anti-preimpregnation yarn of claim 1, twist the automatic fiber placement servicing unit of strength, it is characterized in that: above-mentioned piddler head (1) is meshed transmission gear or tooth-like belt transmission with the drive connection of the 4th gear (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102788491A CN102423918B (en) | 2011-09-20 | 2011-09-20 | Automatic fiber placement auxiliary apparatus capable of resisting twisting force of prepreg strands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102788491A CN102423918B (en) | 2011-09-20 | 2011-09-20 | Automatic fiber placement auxiliary apparatus capable of resisting twisting force of prepreg strands |
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| Publication Number | Publication Date |
|---|---|
| CN102423918A CN102423918A (en) | 2012-04-25 |
| CN102423918B true CN102423918B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102788491A Active CN102423918B (en) | 2011-09-20 | 2011-09-20 | Automatic fiber placement auxiliary apparatus capable of resisting twisting force of prepreg strands |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014201060A1 (en) * | 2014-01-22 | 2015-07-23 | Broetje-Automation Gmbh | Fiber laying machine and method for the production of fiber layers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201333807Y (en) * | 2009-01-14 | 2009-10-28 | 大庆汉维长垣高压玻璃钢管道有限公司 | Yarn combing device in shape of Greek alphabet Omega |
| CN101618809A (en) * | 2009-07-20 | 2010-01-06 | 南京航空航天大学 | Device for controlling yarn releasing with low damage and method |
| CN201472991U (en) * | 2009-09-10 | 2010-05-19 | 大亚科技股份有限公司 | Driving wheel regulating device of fiber placement conveyer belt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8205532B2 (en) * | 2005-08-16 | 2012-06-26 | The Boeing Company | Method of cutting tow |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201333807Y (en) * | 2009-01-14 | 2009-10-28 | 大庆汉维长垣高压玻璃钢管道有限公司 | Yarn combing device in shape of Greek alphabet Omega |
| CN101618809A (en) * | 2009-07-20 | 2010-01-06 | 南京航空航天大学 | Device for controlling yarn releasing with low damage and method |
| CN201472991U (en) * | 2009-09-10 | 2010-05-19 | 大亚科技股份有限公司 | Driving wheel regulating device of fiber placement conveyer belt |
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| CN102423918A (en) | 2012-04-25 |
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