CN114645387B - Processing method of anti-draught fan head cloth - Google Patents
Processing method of anti-draught fan head cloth Download PDFInfo
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- CN114645387B CN114645387B CN202210276069.1A CN202210276069A CN114645387B CN 114645387 B CN114645387 B CN 114645387B CN 202210276069 A CN202210276069 A CN 202210276069A CN 114645387 B CN114645387 B CN 114645387B
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- cloth
- ventilation net
- opening
- ventilation
- wind
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B23/00—Sewing apparatus or machines not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F1/00—Ground or aircraft-carrier-deck installations
- B64F1/005—Protective coverings for aircraft not in use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention belongs to the technical field of aircraft fabric sewing, and discloses a processing method of an anti-draught fan head fabric, which comprises the following steps: step one: determining the appearance of the machine head fabric by sampling to form a fabric template; step two: determining the position of the cloth which is easy to be in the air in the using process according to the test; step three: determining the size of a ventilation net according to the outline size of the cloth; weaving a ventilation net by using a plurality of brocade silk ribbons; step four: blanking each cloth of the cloth according to the cloth template; step five: splicing all cloth webs of the cloth into a complete cloth; step six: cutting an opening at a position of the complete cloth, which is easy to catch wind, wherein the shape of the opening is similar to that of a ventilation net; the size of the opening is smaller than that of the ventilation net; step seven: sewing the ventilation net at the opening of the complete cloth; step eight: and (5) arranging a vent at the front lower position of the complete cloth covering machine head to finish the processing of the wind-resistant cloth covering.
Description
Technical Field
The invention belongs to the technical field of aircraft fabric sewing, and relates to a processing method of an anti-draught fan head fabric.
Background
As random ground guarantee equipment of an aircraft, the aircraft must be equipped with aircraft nose cover cloth, the aircraft nose is protected when no flight mission of the aircraft stops at an airport, damage to the aircraft by bad weather, wind and sand and the like is reduced, at present, the aircraft nose cover cloth mainly adopts 656 waterproof Tu Yinbu or 053 waterproof rough cloth, a used connecting belt is 25-350A white polyester belt or 25-350 grass green brocade silk belt, the connecting belt is bound or fixed at a proper position on the aircraft after being sewn with the cover cloth, each cloth width is used for determining the size and shape through on-site sampling on the aircraft, and a full coverage mode is basically carried out on the upper part of the aircraft nose cover cloth, but in the actual use process, especially when the aircraft nose cover cloth is used in a large-scale area, the problem that the aircraft nose cover cloth is always spread or even torn is solved.
Disclosure of Invention
The invention solves the problem that the existing nose cloth cannot be used due to damage caused by wind-carrying when being used in areas with larger wind level, and provides a novel processing method of the anti-wind head cloth.
A processing method of an anti-draught fan head fabric comprises the following steps:
step one: determining the appearance of the machine head fabric by sampling to form a fabric template;
step two: determining the position of the cloth which is easy to be in the air in the using process according to the test;
step three: determining the size of a ventilation net according to the outline size of the cloth; weaving a ventilation net by using a plurality of brocade silk ribbons;
step four: blanking each cloth of the cloth according to the cloth template;
step five: splicing all cloth webs of the cloth into a complete cloth;
step six: cutting an opening at a position of the complete cloth, which is easy to catch wind, wherein the shape of the opening is similar to that of a ventilation net; the size of the opening is smaller than that of the ventilation net;
step seven: sewing the ventilation net at the opening of the complete cloth;
step eight: and (5) arranging a vent at the front lower position of the complete cloth covering machine head to finish the processing of the wind-resistant cloth covering.
Further, in the third step, the sum of areas S of the plurality of cloth webs covered at the position easy to catch wind is 4.02 square meters; the area of the ventilation net is 0.3S-0.4S.
In the third step, the ventilation net is rectangular and is woven by a cross-stitch method through a plurality of brocade silk ribbons.
Further, the distance between every two nylon ribbons of the ventilation net is.
In the fifth step, each cloth of the cloth is sewn into the complete cloth by a hemming method.
In the sixth step, the opening is rectangular similar to the shape of the ventilation net, and the long side of the opening is 20mm-30mm smaller than the long side of the ventilation net; the width of the opening is 20mm-30mm smaller than the width of the ventilation net.
Further, in the eighth step, the number of ventilation openings is not less than 3; the distance between the centers of the circles of every two ventilation openings is 270-330 mm.
Further, in the seventh step, the ventilation net and the complete cloth opening are sewn through welting reinforcement.
The invention has the following effects:
the invention provides random ground guaranteeing equipment suitable for an airplane with a larger wind level area, which has the advantages that compared with the prior art, the equipment is characterized in that: compared with the existing machine head fabric, the novel fabric is added with the ventilation net and the ventilation opening, so that the damage of strong wind to the fabric is reduced, and the service life of the fabric is prolonged. After the novel cloth is delivered to a user, the actual outfield use verification proves that the feedback-free cloth is torn due to wind.
The manufacturing conception and the manufacturing mode of the nose fabric can be widely popularized and applied to other machine types, and can also be popularized and applied to manufacturing and application of other outdoor protective covers.
Drawings
FIG. 1 is a schematic view of a portion of an anti-windbreak head fabric;
FIG. 2 is a schematic view of a ventilation network;
FIG. 3 is an enlarged view of part I;
FIG. 4 is a schematic view of the webs and vents;
in the figure, a 1-cloth, a 2-cloth, a 3-cloth, a 4-cloth, a 5-cloth, a five-cloth and a 6-ventilation net are arranged; 7-binding band I, 8-binding band II, 6-1 short binding band, 6-2 long binding band, 9-cloth width six, 10-cloth width seven 11-cloth width eight, 12-cloth width nine, 13-cloth width ten, 14-cloth width eleven and 15-ventilation opening.
Detailed Description
A processing method of an anti-draught fan head fabric comprises the following steps:
step one: as shown in fig. 1, the outline of the machine head is determined through sampling to form a mask template, and a sewing allowance is reserved when the template is manufactured, and the outline size and shape of the machine head can be accurately obtained through taking a real sample of the aircraft due to the fact that the shape of the machine head is complex and is mostly arc-shaped;
step two: determining the position of the mask which is easy to catch wind in the using process according to the test, and determining the position of the mask which is easy to catch wind and tear in the strong wind environment according to the observation of the plane at ordinary times and the observation of the plane with the mask installed by adopting a windmill; marking in a cloth covering pattern plate at the air-catching position;
step three: the size of the ventilation net is determined according to the outline size of the cloth, the shape of the ventilation net is determined to be rectangular, as shown in fig. 2 and 3, rectangular weaving is simpler, processing difficulty is reduced, working efficiency is increased, the size of the ventilation net depends on the sum of the areas of a plurality of cloth webs at positions where the cloth is easy to be covered, under general conditions, the sum S of the areas of a plurality of cloth webs at positions where the size of the ventilation net is=0.3-0.4 is easy to be covered should be met, the area of the ventilation net is too small, the cloth cannot play a good wind-resistant role, the ventilation net is too large, the integrity of the cloth is easy to be damaged, and the firmness of the cloth is reduced; the ventilation net is woven by utilizing the plurality of silk ribbons, the silk ribbons between the ventilation nets cannot be too dense or too sparse, the silk ribbon weaving is too dense, the weight of the cloth is increased, the difficulty of the cloth in the process of covering and using is improved, the time in the process of weaving the ventilation net is also increased, the working efficiency is reduced, the weaving of the ventilation net is too sparse, and the firmness and the using strength of the ventilation net cannot be guaranteed.
Step four: blanking each cloth according to the cloth template, wherein the cloth is flatly laid on a workbench, and the template is placed in place and then can be subjected to line drawing and blanking;
step five: the cloth pieces of the cloth are spliced into the complete cloth, and the splicing among the cloth pieces of the cloth is mostly carried out by adopting a hemming method, so that the sewing firmness of the cloth pieces of the cloth is increased;
step six: cutting an opening at a position where the complete cloth is easy to be in a wind, wherein the shape of the opening is similar to that of a ventilation net, and the opening is rectangular and the position is based on a marked template; the size of the opening is smaller than that of the ventilation net and is smaller than 20-30 mm, so that the ventilation net and the cloth are tightly stitched through welt, the attaching degree is increased, if the size of the opening is too large and is smaller than 20-30 mm, the contact area between the cloth web and the ventilation net cannot be increased, the firmness degree is not ensured, and if the size of the opening is too small and is larger than 20-30 mm, the expected ventilation effect is not achieved, and the stitching of the ventilation net and the cloth is also influenced;
step seven: sewing the ventilation net at the opening of the complete mask, sewing the mask and the ventilation net after the braiding of the ventilation net is completed, adopting welt reinforcement sewing at the joint of the two sides of the ventilation net and the mask, reinforcing sewing of double-sided welt, protecting the nylon ribbon at the outermost end of the ventilation net, increasing the firmness degree of the joint of the mask and the ventilation net, and effectively prolonging the service time of the mask;
step eight: the vent is formed in the position, in front of and below the complete mask machine head, of the vent, the shape of the vent is circular, as shown in fig. 4, the circular stress is minimum, damage to the mask is reduced while the vent is ventilated, the size of the vent is 120 in diameter, the number of the vent is not less than 3, if the size is undersize, the effect of a vent net is not obvious, if the size is oversized, the cloth width at the vent is damaged, the vent is easy to damage, the number of the vent is determined according to the air-covering position and the size of the mask, the 3 vents ensure the integrity and firmness of the mask while ensuring the ventilation, the vent position is sewn with welt reinforcement, and the mask for the anti-blower head is formed after sewing is completed.
Embodiment one:
the novel aircraft nose mask is processed by firstly determining the basic shape of the aircraft nose, and firstly determining the size and shape of the aircraft nose by sampling and manufacturing templates as the aircraft nose mask has a certain shape and radian, and splicing all templates to form the complete aircraft nose mask. After the appearance of each sample plate is basically determined, the specific position of the nose covering air pocket is determined, the position of the nose covering air pocket is determined in the using process by observing and field testing the nose covering cloth in a factory, corresponding marks are made on the sample plate, the positions and the sizes of the ventilation net and the ventilation opening are determined according to the integral size of the covering cloth and the condition of the position of the easily air pocket, and the quantity and the size of silk-like fabrics used for weaving the ventilation net are determined by considering the firmness of the ventilation net and the connection between the covering cloths.
After the specific sizes and the number of the machine head sample plates and the ventilation net are determined, the machine head is subjected to blanking according to the sample plates, the used materials are 656 waterproof Tu Yinbu, the used materials of the ventilation net are 25-350A white polyester belts, the long tie size L=1600, the number of the short tie sizes L=1100 and the number of the short tie sizes 10, the two ends of the nylon wire belts are subjected to ironing treatment by an electric iron after the blanking, the nylon wire belts are prevented from being broken, the used stitching is 13# white nylon wire, a seam-wrapping method is adopted between cloth webs, the weaving of the ventilation net is carried out by vertically crossing the long tie and the short tie, and square and cross seam-crossing methods are adopted at the joint of the tie so as to increase the firmness of the weaving of the nylon wire belts. After the vent net and the cover cloth are sewn, holes are formed in the positions of the vent holes and the vent net marked on the template, the vent net is formed in a regular rectangle after the cover cloth is woven, the size is 1445 multiplied by 985, the tolerance is (+ 40-10), the opening position of the vent net corresponding to the cover cloth is smaller than the actual size (about 20-30 mm smaller) of the vent net, the vent net is sewn in the opening position of the cover cloth after the vent net is sewn, the vent net and the cover cloth are sewn by double-sided welt double-line, the vent net and the cover cloth are tightly and firmly sewn, the positions of the vent holes are arranged at the bottom of the front end of the machine head, the vent holes are provided with 3 vent holes, the size is 120mm circular, the circular shape ensures that the stress of the positions of the holes is minimum, the vent holes are sewn along the periphery of the vent holes by welt edges, and the firmness of the opening positions is ensured at the same time.
The novel anti-draught fan head fabric is formed by sewing the net weaving of the ventilation net, sewing the machine head fabric, arranging the ventilation opening, sewing the ventilation net and the machine head fabric through the position determination of the ventilation net and the ventilation opening. After the cloth is delivered to a user for use, the wind resistance effect is obviously improved, and the service life of the cloth is prolonged.
Claims (5)
1. A processing method of an anti-draught fan head fabric is characterized by comprising the following steps: the method comprises the following steps:
step one: determining the appearance of the machine head fabric by sampling to form a fabric template;
step two: determining the position of the cloth which is easy to be in the air in the using process according to the test;
step three: determining the size of a ventilation net according to the outline size of the fabric, determining the shape of the ventilation net as a rectangle, wherein the size of the ventilation net depends on the sum S of the areas of a plurality of cloth webs at the position where the air is easily sucked, and the area of the ventilation net is=0.3-0.4S; weaving a ventilation net by utilizing a plurality of brocade silk ribbons by a cross-stitch method;
step four: blanking each cloth according to the cloth template, spreading the cloth on a workbench, placing the template in place, and then drawing lines for blanking;
step five: splicing all cloth webs of the cloth into a complete cloth by a hemming method;
step six: cutting an opening at a position of the complete cloth, which is easy to catch wind, wherein the shape of the opening is similar to that of a ventilation net; the size of the opening is smaller than that of the ventilation net; the long side of the opening is 20-mm mm smaller than the long side of the ventilation net; the width of the opening is 20-mm mm smaller than that of the ventilation net;
step seven: sewing the ventilation net at the opening of the complete cloth;
step eight: and (5) arranging a vent at the front lower position of the complete cloth covering machine head to finish the processing of the wind-resistant cloth covering.
2. The method for processing the anti-wind head fabric according to claim 1, which is characterized in that: in the third step, the sum of areas of a plurality of cloth webs covered at the position easy to catch wind is s=4.02 square meters.
3. The method for processing the anti-wind head fabric according to claim 2, which is characterized in that: the distance between every two nylon ribbons of the ventilation net is L=160 mm.
4. The method for processing the anti-wind head fabric according to claim 1, which is characterized in that: in the eighth step, the number of the ventilation openings is not less than 3; the distance between the centers of every two ventilation openings is 270mm-330mm.
5. The method for processing the anti-wind head fabric according to claim 1, which is characterized in that: in the seventh step, the ventilation net and the complete cloth opening are sewn through welt reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276069.1A CN114645387B (en) | 2022-03-21 | 2022-03-21 | Processing method of anti-draught fan head cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210276069.1A CN114645387B (en) | 2022-03-21 | 2022-03-21 | Processing method of anti-draught fan head cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114645387A CN114645387A (en) | 2022-06-21 |
| CN114645387B true CN114645387B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210276069.1A Active CN114645387B (en) | 2022-03-21 | 2022-03-21 | Processing method of anti-draught fan head cloth |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611501A (en) * | 1995-03-24 | 1997-03-18 | Crandley; William R. | Aircraft wing protective cover system |
| WO2018025411A1 (en) * | 2016-08-05 | 2018-02-08 | 株式会社パテックジャパン | Cover for small fixed-wing aircraft |
| CN112429260A (en) * | 2020-09-21 | 2021-03-02 | 中国人民解放军空军南京航空四站装备修理厂 | Hail-suppression covering cloth for aircraft nose and aircraft body of fighter aircraft |
| CN212890997U (en) * | 2020-07-13 | 2021-04-06 | 四川天中星航空科技有限公司 | Fixed wing aircraft covering cloth structure |
| CN213036098U (en) * | 2020-07-31 | 2021-04-23 | 西安兰华航空制造有限公司 | Hail suppression covering cloth convenient to store |
| CN215285300U (en) * | 2021-03-26 | 2021-12-24 | 陕西飞机工业有限责任公司 | Aircraft windshield protector |
-
2022
- 2022-03-21 CN CN202210276069.1A patent/CN114645387B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611501A (en) * | 1995-03-24 | 1997-03-18 | Crandley; William R. | Aircraft wing protective cover system |
| WO2018025411A1 (en) * | 2016-08-05 | 2018-02-08 | 株式会社パテックジャパン | Cover for small fixed-wing aircraft |
| CN212890997U (en) * | 2020-07-13 | 2021-04-06 | 四川天中星航空科技有限公司 | Fixed wing aircraft covering cloth structure |
| CN213036098U (en) * | 2020-07-31 | 2021-04-23 | 西安兰华航空制造有限公司 | Hail suppression covering cloth convenient to store |
| CN112429260A (en) * | 2020-09-21 | 2021-03-02 | 中国人民解放军空军南京航空四站装备修理厂 | Hail-suppression covering cloth for aircraft nose and aircraft body of fighter aircraft |
| CN215285300U (en) * | 2021-03-26 | 2021-12-24 | 陕西飞机工业有限责任公司 | Aircraft windshield protector |
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| Publication number | Publication date |
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| CN114645387A (en) | 2022-06-21 |
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