CN109795712B - Inflatable bionic wing and processing method thereof - Google Patents

Inflatable bionic wing and processing method thereof Download PDF

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Publication number
CN109795712B
CN109795712B CN201910274065.8A CN201910274065A CN109795712B CN 109795712 B CN109795712 B CN 109795712B CN 201910274065 A CN201910274065 A CN 201910274065A CN 109795712 B CN109795712 B CN 109795712B
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wing
heat sealing
pulse
column
sealing line
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CN109795712A (en
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刘强
楚镇亚
王翠
许蓬子
周晓勤
李强
李世斌
邢向
滕帅
任露泉
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Jilin University
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Jilin University
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Abstract

The invention relates to an inflatable bionic wing and a processing method thereof, belonging to the field of bionic machinery. The upper plastic film and the lower plastic film form a hollow structure through an inner heat sealing line and an outer heat sealing line, the main wing pulse wing column adopts a conical structure, the near wing root end adopts a large-diameter structure, the far wing root end adopts a small-diameter structure, the staggered wing pulse wing columns adopt a columnar structure for connecting the two main wing pulse wing columns, the inner wing surface is formed by sealing the inner heat sealing line, the outer wing surface is formed by the outer heat sealing line and a cutting track, the clamping wing column is positioned at the root of the main wing pulse wing column, and the check valve is connected with the air charging port in a heat sealing manner. The advantage is novel structure, it is by double-deck plastic film adoption roll extrusion heat-seal method preparation to aerify the wing, can form the bionical wing of insect wing section after aerifing, has certain intensity and pliability, and the quick formation wing structure that aerifies is used for ornithopter flight during the flight, can exhaust and draw in around the flight, compression volume, easily deposit.

Description

Inflatable bionic wing and processing method thereof
Technical Field
The invention belongs to the field of bionic mechanical design, and particularly relates to an inflatable bionic wing and a processing method thereof.
Background
The design and research of the miniature flapping-wing aircraft are important research and development subjects in various countries in recent years, and the novel bionic flapping-wing aircraft designed according to the principle of bionics takes birds and insects as prototypes, has incomparable advantages of fixed wings and rotary wings in the miniature field. With the development of modern science and technology, in particular to the continuous progress of micro-electromechanical systems, micro-ornithopters are becoming one of new research hotspots, and have extremely high application value in military and natural science.
The bionic wing is used as one of core components of the miniature ornithopter, generates thrust force for the ornithopter and realizes various complex flight actions, and has great significance. The existing ornithopter wings are mostly designed by adopting polyester films and carbon fiber rods, for example, the quarter elliptic wings used by 'nano buzzers' in the United states are fixed in wing shape, have large wing area, cannot be folded and folded, and are not beneficial to storage before and after flying.
The hot press sealing is to seal the material with heating mode to make it in viscous state and then to press to make it viscous. The most commonly used heat sealing method is a common heat sealing method such as a heat sealing machine, which can perform linear packaging on the opening of the plastic film, has good air tightness, but cannot be used for packaging of special tracks.
Disclosure of Invention
The invention provides an inflatable bionic wing and a processing method thereof, which are used for solving the problems of overlarge wing volume and poor furling property of the conventional ornithopter.
The technical scheme adopted is as follows: the upper plastic film and the lower plastic film form a hollow structure through an inner heat sealing line and an outer heat sealing line, the hollow structure comprises a main wing pulse wing column and a staggered wing pulse wing column, wherein the main wing pulse wing column adopts a conical structure, a large-diameter structure is adopted at a near wing root end, a small-diameter structure is adopted at a far wing root end, the staggered wing pulse wing column adopts a columnar structure and is used for connecting the two main wing pulse wing columns, an inner wing surface is formed by sealing an inner heat sealing line, an outer wing surface is formed by sealing an outer heat sealing line and a cutting track, a clamping wing column is positioned at the root part of the main wing pulse wing column, the diameter of the clamping wing column is smaller than the diameter of the root part of the main wing pulse wing column, an air charging port is arranged at the opening of the root part of the main wing pulse wing column, and a check valve is connected with the air charging port in a heat sealing way;
the inner heat sealing line and the outer heat sealing line are processed by adopting a rolling heat sealing method;
the inner airfoil surface of the invention is a rounded triangle or polygon;
the internal heat sealing line is a closed rounded triangle or polygonal track;
the external heat sealing line is a semi-closed type outer edge track.
A processing method of inflatable bionic wings comprises the following steps:
firstly, mounting a double-layer plastic film on a three-degree-of-freedom experimental platform of a rolling heat sealing device, and adjusting temperature and pressure parameters of a universal rolling head;
converting the preset wing profile track into a machine operation code, rolling and heat-sealing the double-layer plastic film, and processing an inner heat-sealing line and an outer heat-sealing line of the bionic wing;
and thirdly, adding a check valve at the root inflation port of the main wing pulse wing column, packaging, and cutting off redundant materials to form an inflatable bionic wing finished product.
The structure of the rolling heat sealing device is as follows: the fixture body device is fixedly connected to the three-degree-of-freedom processing platform, the machine head is fixedly connected with the Z-direction adjusting device of the three-degree-of-freedom processing platform, the fixed support is arranged on the machine head through a locking nut, the heating aluminum block is arranged on the fixed support through a set screw, the temperature sensor is connected above the heating aluminum block through threads, the heating rod is inserted into the heating aluminum block, the transformer is electrically connected with the heating rod, and the universal rolling head is connected below the heating aluminum block through threads and is screwed up and loosened through a hexagonal thin nut;
the hot pressing platform of the fixture body device adopts a rubber pad.
The fixing support comprises a machine head connecting through hole, a right-angle flexible hinge and a heating aluminum block connecting through hole.
The inflatable wing is made of double-layer plastic films by adopting a rolling heat sealing method, can form a bionic wing of an insect wing shape after being inflated, has certain strength and flexibility, can be used for a miniature ornithopter, can be quickly inflated to form a wing structure for the ornithopter to fly during flying, can be exhausted and folded before and after flying, is compressed in volume and is easy to store. The invention also provides a rolling heat sealing processing method and a rolling heat sealing device which can be used for heat sealing processing of irregular-shaped tracks.
Drawings
FIG. 1 is a schematic view of an inflatable bionic wing according to the present invention;
FIG. 2 is a schematic view of the structure of the rolling heat sealing device of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is an isometric view of a mounting bracket, temperature sensor, heated aluminum block, heating rod, universal roller head assembly of the present invention;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a schematic diagram of a roll heat seal of the present invention;
fig. 7 is a schematic structural view of the fixing bracket of the present invention.
Detailed Description
As shown in fig. 1, a hollow structure is formed by an upper layer of plastic film 24 and a lower layer of plastic film through an inner heat sealing line 2 and an outer heat sealing line 3, the hollow structure comprises a main wing pulse wing column 5 and a staggered wing pulse wing column 7, wherein the main wing pulse wing column 5 adopts a conical structure, a near wing root end adopts a large-diameter structure, a far wing root end adopts a small-diameter structure, the staggered wing pulse wing column 7 adopts a columnar structure for connecting the two main wing pulse wing columns 5, an inner wing surface 4 is formed by sealing the inner heat sealing line 2, an outer wing surface 6 is formed by the outer heat sealing line 3 and a cutting track 8, a clamping wing column 1 is positioned at the root part of the main wing pulse wing column 5, the diameter of the clamping wing column is smaller than the root part of the main wing pulse wing column, the clamping wing column 1 is used for being installed on an executing mechanism of the ornithopter, the root opening of the main wing pulse wing column 5 is an inflation port 9, and a check valve 10 is connected with the inflation port 9 in a heat sealing way;
the inner heat sealing line 2 and the outer heat sealing line 3 are processed by adopting a rolling heat sealing method;
the inner wing surface 4 is a rounded triangle or a polygon;
the internal heat sealing line 2 is a closed rounded triangle or polygonal track;
the outer heat sealing line 3 is a semi-closed outer edge track.
Working principle:
the wing structure is formed by rapid inflation through the inflation inlet 9 and the check valve 10, and is used for the flight of the ornithopter, the check valve 10 can prevent the gas from leaking, ensure the air pressure inside the inflation wing, maintain the structural strength of the inflation wing, exhaust and furl after the flight is finished, compress the volume and facilitate storage.
A processing method of inflatable bionic wings comprises the following steps:
firstly, mounting a double-layer plastic film 24 on a three-degree-of-freedom experimental platform 11 of a rolling heat sealing device, and adjusting the temperature and pressure parameters of a universal rolling head;
converting the preset wing profile track into a machine operation code, rolling and heat-sealing the double-layer plastic film, and processing an inner heat seal line 2 and an outer heat seal line 3 of the bionic wing;
and thirdly, adding a check valve 10 at the root inflation port 9 of the main wing column 5, packaging, and cutting off redundant materials to form an inflatable bionic wing finished product.
As shown in fig. 2, 3, 4 and 5, the structure of the rolling heat sealing device is as follows: the fixture body device 12 is fixedly connected to the three-degree-of-freedom machining platform 11, the machine head 15 is fixedly connected with the Z-direction adjusting device 14 of the three-degree-of-freedom machining platform 11, the fixed support 16 is arranged on the machine head 15 through the locking nut 17, the heating aluminum block 19 is arranged on the fixed support 16 through the set screw 20, the temperature sensor 18 is connected above the heating aluminum block 19 through threads, the heating rod 21 is inserted into the heating aluminum block 19, the transformer 13 is electrically connected with the heating rod 21, and the universal rolling head 23 is connected below the heating aluminum block 19 through threads and is screwed with the hexagonal thin nut 22 to prevent loosening;
the hot press platform 1201 of the fixture body assembly 12 employs rubber pads.
As shown in fig. 7, the fixing bracket 16 includes a head connecting through hole 1601, a right angle flexible hinge 1602, and a heating aluminum block connecting through hole 1603.
As shown in fig. 6, the working principle of the rolling heat seal processing device is as follows: the double-layer plastic film 24 is arranged on the surface of a rubber pad of the hot-pressing platform 1201, and the double-layer plastic film 24 of the contact is rapidly pressurized and heated through the universal rolling head 23, so that the double-layer plastic film 24 is in a molten bonding state and is adhered and sealed; the temperature sensor 18 uploads the detected temperature signal to the controller through the signal wire, 220V alternating current is converted into 12V alternating current voltage required by the heating rod 21 through the transformer 13, the fixing support 16 is used for fixing the machine head and the heating aluminum block, the right-angle flexible hinge 1602 has certain elasticity, and when the packaging operation is carried out, the distance between the universal rolling head 23 and the double-layer plastic film 24 can be adjusted through the elastic deformation of the right-angle flexible hinge 1602 by the universal rolling head 23, so that the pressure between the two can be adjusted.

Claims (9)

1. An inflatable bionic wing, which is characterized in that: the upper plastic film and the lower plastic film form a hollow structure through an inner heat sealing line and an outer heat sealing line, the hollow structure comprises a main wing pulse wing column and a staggered wing pulse wing column, wherein the main wing pulse wing column adopts a conical structure, a near wing root end adopts a large-diameter structure, a far wing root end adopts a small-diameter structure, the staggered wing pulse wing column adopts a columnar structure for connecting the two main wing pulse wing columns, an inner wing surface is formed by sealing an inner heat sealing line, an outer wing surface is formed by sealing an outer heat sealing line and a cutting track, a clamping wing column is positioned at the root of the main wing pulse wing column, the diameter of the clamping wing column is smaller than the diameter of the root of the main wing pulse wing column, an inflation port is arranged at the opening of the root of the main wing pulse wing column, and a check valve is connected with the inflation port in a heat sealing manner.
2. The inflatable bionic wing according to claim 1, wherein: the inner heat sealing line and the outer heat sealing line are processed by adopting a rolling heat sealing method.
3. The inflatable bionic wing according to claim 1, wherein: the inner airfoil surface is a rounded triangle or polygon.
4. The inflatable bionic wing according to claim 1, wherein: the internal heat sealing line is a closed circular triangle or polygon track.
5. The inflatable bionic wing according to claim 1, wherein: the outer heat sealing line is a semi-closed outer edge track.
6. The method for processing the inflatable bionic wing according to claim 1, comprising the steps of:
firstly, mounting a double-layer plastic film on a three-degree-of-freedom experimental platform of a rolling heat sealing device, and adjusting temperature and pressure parameters of a universal rolling head;
converting the preset wing profile track into a machine operation code, rolling and heat-sealing the double-layer plastic film, and processing an inner heat-sealing line and an outer heat-sealing line of the bionic wing;
and thirdly, adding a check valve at the root inflation port of the main wing pulse wing column, packaging, and cutting off redundant materials to form an inflatable bionic wing finished product.
7. The method for processing the inflatable bionic wing according to claim 6, wherein: the structure of the rolling heat sealing device is as follows: the fixture body device is fixedly connected to the three-degree-of-freedom machining platform, the machine head is fixedly connected with the Z-direction adjusting device of the three-degree-of-freedom machining platform, the fixing support is installed on the machine head through the locking nut, the heating aluminum block is installed on the fixing support through the set screw, the temperature sensor is connected to the upper portion of the heating aluminum block through threads, the heating rod is inserted into the heating aluminum block, the transformer is electrically connected with the heating rod, and the universal rolling head is connected to the lower portion of the heating aluminum block through threads and is screwed up and prevented from loosening through the hexagonal thin nut.
8. The method for processing the inflatable bionic wing according to claim 7, wherein: the hot pressing platform of the fixture body device adopts a rubber pad.
9. The method for processing the inflatable bionic wing according to claim 7, wherein: the fixing support comprises a machine head connecting through hole, a right-angle flexible hinge and a heating aluminum block connecting through hole.
CN201910274065.8A 2019-04-07 2019-04-07 Inflatable bionic wing and processing method thereof Active CN109795712B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113148142B (en) * 2021-04-22 2022-07-05 吉林大学 Pneumatic folding bionic flapping wing micro-aircraft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2332453Y (en) * 1998-04-08 1999-08-11 陈天佑 Inflated flying toy
FR2845968A1 (en) * 2002-10-16 2004-04-23 Paimpol Voiles Inflatable flying wing e.g. for paragliding has anti-destruction system in form of valves that release surplus pressure
CN104443440A (en) * 2014-12-01 2015-03-25 中国林业科学研究院资源昆虫研究所 Butterfly scaly wing development based spatial bionic stretchable structure
CN204979234U (en) * 2015-10-01 2016-01-20 吉林大学 Energy miniature aircraft of flapping wing of can regenerating
CN106904294A (en) * 2015-12-23 2017-06-30 中国科学院沈阳自动化研究所 A kind of bionical inflation deployable structure
CN209870775U (en) * 2019-04-07 2019-12-31 吉林大学 Inflatable bionic wing and processing device thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2332453Y (en) * 1998-04-08 1999-08-11 陈天佑 Inflated flying toy
FR2845968A1 (en) * 2002-10-16 2004-04-23 Paimpol Voiles Inflatable flying wing e.g. for paragliding has anti-destruction system in form of valves that release surplus pressure
CN104443440A (en) * 2014-12-01 2015-03-25 中国林业科学研究院资源昆虫研究所 Butterfly scaly wing development based spatial bionic stretchable structure
CN204979234U (en) * 2015-10-01 2016-01-20 吉林大学 Energy miniature aircraft of flapping wing of can regenerating
CN106904294A (en) * 2015-12-23 2017-06-30 中国科学院沈阳自动化研究所 A kind of bionical inflation deployable structure
CN209870775U (en) * 2019-04-07 2019-12-31 吉林大学 Inflatable bionic wing and processing device thereof

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