CN111746877A - Folding and containing method of large flexible heat-proof structure - Google Patents

Folding and containing method of large flexible heat-proof structure Download PDF

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Publication number
CN111746877A
CN111746877A CN202010441199.7A CN202010441199A CN111746877A CN 111746877 A CN111746877 A CN 111746877A CN 202010441199 A CN202010441199 A CN 202010441199A CN 111746877 A CN111746877 A CN 111746877A
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China
Prior art keywords
flexible heat
proof structure
folding
flexible
state
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CN202010441199.7A
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CN111746877B (en
Inventor
于杰
李志臣
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Beijing Institute of Electronic System Engineering
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Beijing Institute of Electronic System Engineering
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B63/00Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/04Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for folding or winding articles, e.g. gloves or stockings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00Bundling articles
    • B65B13/02Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes

Abstract

The embodiment of the invention discloses a folding and storing method of a large flexible heat-proof structure, which comprises the following steps: fixing the flexible heat-proof structure on the structural member, and hoisting the structural member to separate the flexible heat-proof structure from the ground; the bottom end of the flexible heat-proof structure is turned upwards to form a turning part; bending the folded part inwards to form a plurality of creases, arranging the creases, and binding by using a first binding piece to form a flexible heat-proof structure in a first state; completely wrapping the flexible heat-proof structure in the first state by using a flexible shrink film, removing air in the closed cavity, and then binding by using a second binding piece to form the flexible heat-proof structure in the second state; and rotating the flexible heat-proof structure in the second state and connecting and fixing the flexible heat-proof structure with the parking tool. The method solves the problems of difficult folding, difficult forming and difficult shape keeping of the flexible heat-proof structure through the functions of the lifting rope and the self gravity of the flexible heat-proof structure, can obviously improve the folding quality and the folding efficiency of the flexible heat-proof structure, and has controllable folding process.

Description

Folding and containing method of large flexible heat-proof structure
Technical Field
The invention relates to the technical field of flexible body folding, in particular to a folding and storing method of a large flexible heat-proof structure.
Background
The large flexible heat-proof structure is a structure which can be opened when in use and folded and retracted when not in use, and can be generally applied to the outermost layer of a flexible unfolding spacecraft and used for heat protection of the spacecraft. Such large flexible heat shields are typically composed of multiple layers of different materials. Large flexible heat shields, while capable of folding, exhibit some rigidity and resiliency during folding. To the great flexible heat protection structure of expansion volume and folding volume ratio, bulky, the quality is heavy, thickness is than thick, the difficult flexible heat protection structure of rolling over promptly, manual folding accomodate just to seem extra difficulty.
Manual folding of large flexible heat protection structures by operators generally encounters three technical difficulties, which makes it difficult to accomplish effective folding of large flexible heat protection structures. The first problem is that the self weight of the large flexible heat-proof structure is large, and the manual power of an operator is not enough to overcome the gravity of the whole flexible heat-proof structure. The second problem is that the large flexible heat-proof structure has a large area, and even if a plurality of operators are matched to fold the large flexible heat-proof structure together, the folding shape of the whole flexible heat-proof structure is difficult to control. The third problem is that the large flexible heat-proof structure has certain thickness and bending resistance, and meanwhile, the flexible heat-proof structure has certain rigidity and resilience, and the shape of the finished folded part is difficult to maintain in the folding process.
Therefore, in order to overcome the technical defects of the prior art, a new folding and accommodating method for a large flexible heat-proof structure is needed.
Disclosure of Invention
The invention aims to provide a folding and accommodating method of a large flexible heat-proof structure, which aims to solve at least one of the problems in the prior art.
In order to achieve at least one of the above objects, the present invention provides a folding and storing method of a large flexible heat protection structure, comprising the steps of:
s1, fixing the flexible heat-proof structure on the structural member, and hoisting the structural member by using hoisting equipment to separate the flexible heat-proof structure from the ground;
s2, arranging the naturally drooping flexible heat-proof structure into a cone shape, marking a plurality of lifting points on the bottom edge of the flexible heat-proof structure along the circumferential direction, and connecting the lifting points with hoisting equipment by using lifting ropes to enable the bottom end of the flexible heat-proof structure to be turned upwards to form a turning part;
s3, bending the surface of the folded part inwards to form a plurality of creases, arranging the creases of the flexible heat-proof structure, and twisting all the creases along the same direction to enable the flexible heat-proof structure to be in a cylindrical folded state;
s4, binding the flexible heat-proof structure along the circumferential direction of the flexible heat-proof structure by using a first binding piece to form a first-state flexible heat-proof structure;
s5, completely wrapping the first-state flexible heat-proof structure by using a flexible shrink film, so that the first-state flexible heat-proof structure is completely positioned in a closed cavity formed by the flexible shrink film;
s6, exhausting air in the closed cavity, and compressing the flexible heat-proof structure in the first state to a cylindrical state;
s7, binding the second binding piece along the circumferential direction of the flexible heat-proof structure to form a second-state flexible heat-proof structure, turning the second-state flexible heat-proof structure by 180 degrees, connecting and fixing the structural piece and the parking tool, and maintaining the cylindrical shape of the flexible heat-proof structure by using atmospheric pressure.
Optionally, the first and second bindings are bands or ropes.
Optionally, the step S3 finishing the plurality of creases of the flexible heat protection structure further comprises: and S31, fitting the two parts of the flexible heat-proof structure materials forming the crease together.
Optionally, the same direction in step S3 is a counterclockwise direction or a clockwise direction.
Optionally, in the step S6, the air inside the sealed cavity is removed by a vacuum pump.
Optionally, the flexible shrink film is made of polyvinyl chloride or polyethylene.
The invention has the following beneficial effects:
the invention provides a folding and storing method of a large-scale flexible heat-proof structure, aiming at the problems in the prior art, the method scientifically and reasonably establishes the folding flow of the flexible heat-proof structure through the action of the pulling force of a lifting rope and the self gravity of the flexible heat-proof structure, and solves the problems of difficult folding, difficult forming and difficult shape maintenance of the flexible heat-proof structure. The folding device has the advantages that the gravity of the large flexible heat-proof structure and the pulling force of the lifting rope are fully utilized, so that the folding of the flexible heat-proof structure can be easily realized only by fixing the lifting rope and the lifting equipment without the joint operation of a plurality of operators, the problems that the flexible heat-proof structure can be folded only by the joint cooperation of a plurality of operators and the shape is difficult to keep after folding are solved, meanwhile, the folding state of the flexible heat-proof structure can be effectively kept and fixed, and the folding shape of the whole flexible heat-proof structure is mastered; in addition, the method reduces the folding steps, simplifies the folding process, obviously improves the folding quality and the folding efficiency, has controllable folding process, and is simple and easy to operate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a flow chart of a folding and storing method of a large flexible heat protection structure according to an embodiment of the invention.
Fig. 2 is a schematic view illustrating a step S1 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 3 is a schematic view illustrating a step S2 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating a step S3 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 5 is a schematic view illustrating a step S4 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 6 is a schematic view illustrating a step S5 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 7 is a schematic view illustrating a step S6 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Fig. 8 is a schematic view illustrating a step S7 of a folding and storing method of a large flexible heat protection structure according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the inventive arrangements, the invention will now be further described with reference to the preferred embodiments and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is further noted that, in the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Aiming at the technical problems in the prior art, as shown in fig. 1 to 8, the invention provides a folding and accommodating method of a large flexible heat-proof structure, which comprises the following steps:
s1, as shown in fig. 2, fixing the flexible heat-proof structure 10 on the structural member 20, and hoisting the structural member 20 by using the hoisting device 30 to separate the flexible heat-proof structure 10 from the ground;
specifically, the flexible heat protection structure 10 is fixed on the structural member 20, and then connected to the structural member 20 by using the hoisting device 30, and the structural member 20 is lifted by the hoisting device 30, so as to drive the flexible heat protection structure 10 to be lifted. The suspended height of the flexible heat shielding structure 10 is preferably such that the flexible heat shielding structure 10 is or will be separated from the ground.
S2, as shown in fig. 3, arranging the naturally drooping flexible heat-proof structure 10 into a cone shape, marking a plurality of lifting points on the bottom edge of the flexible heat-proof structure 10 along the circumferential direction, and connecting the plurality of lifting points with the lifting device 30 by using the lifting rope 40, so that the bottom end of the flexible heat-proof structure 10 is turned upwards to form a turned part 11;
specifically, the large flexible heat-proof structure 10 may naturally sag under the action of its own gravity, the entire large flexible heat-proof structure 10 is arranged in a tapered shape, and then a plurality of hanging points are marked on the bottom edge of the flexible heat-proof structure 10 along the circumferential direction of the bottom surface circumference of the flexible heat-proof structure 10. In one embodiment, the sub-nodes may be used as hanging points by dividing the perimeter of the bottom surface of the entire flexible thermal protection structure 10 into several portions. Subsequently, the hanging point on the drooping bottom end of the flexible heat-proof structure 10 is connected 30 with the hoisting equipment by the hoisting rope 40, so that the bottom end of the flexible heat-proof structure 10 is turned upwards and fixed, and the turning part 11 surrounding the top end of the flexible heat-proof structure 10 can be formed by the flexible heat-proof structure 10 under the action of the gravity of the flexible heat-proof structure and the pulling force of the hoisting rope. In a specific embodiment, the folded portion 11 has a curved surface shape. The height of the flap 11 can be designed according to the actual folding requirements of the operator. In a specific embodiment, the curvature of the folded portion 11 can be smoothly transited by arranging the arc shape of the folded portion 11.
Through the synergism of the gravity of lifting rope and flexible heat protection structure itself, the folding process of flexible heat protection structure need not a plurality of operating personnel concurrent operation, only can realize the folding of flexible heat protection structure easily through the lifting rope is fixed with hoisting equipment, when avoiding the flexible heat protection structure of operating personnel, need many people to cooperate jointly, in order to overcome the weight and the thickness of flexible heat protection structure self and have certain rigidity and resilience, and still be difficult to control technical problems such as folding shape of whole flexible heat protection structure, and through the fixing of lifting rope and hoisting equipment, can effectively keep fixing the fold condition of flexible heat protection structure, master the folding shape of whole flexible heat protection structure.
S3, as shown in fig. 4, bending the surface of the folded part 11 inwards to form a plurality of creases, arranging the creases of the flexible heat-proof structure 10, and twisting all the creases in the same direction to make the flexible heat-proof structure 10 in a cylindrical folded state;
in a specific embodiment, the step S3 finishing the plurality of creases of the flexible heat protection structure 10 further includes: and S31, fitting the two parts of the flexible heat-proof structure materials forming the crease together. In another embodiment, the same direction in step S3 is a counterclockwise direction or a clockwise direction, that is, all the folds of the whole flexible heat-proof structure 10 are uniformly twisted along the counterclockwise direction or the clockwise direction, so that the whole flexible heat-proof structure 10 is folded inwards to be in a cylindrical folded state.
S4, as shown in fig. 5, the first binding member 51 is used to bind along the circumferential direction of the flexible heat-proof structure 10 to form the first state flexible heat-proof structure 70, which helps to prevent the flexible heat-proof structure from rebounding and unfolding by using the first binding member, and effectively maintains the folded shape of the flexible heat-proof structure. In a specific embodiment, the first binding member 51 is located at a middle position outside the flexible heat shielding structure 10.
S5, as shown in fig. 6, the bound first-state flexible heat-proof structure 70 is completely wrapped by the flexible shrink film 60, and at the same time, the flexible shrink film is ensured to have good sealing performance, so that the first-state flexible heat-proof structure 70 is completely located in the sealed cavity formed by the flexible shrink film 60;
s6, as shown in fig. 7, exhausting the air in the sealed cavity of the flexible shrink film 60, compressing the flexible heat-proof structure 70 in the first state to a cylindrical state, and binding the flexible heat-proof structure with the second binding member 52 along the circumferential direction of the flexible heat-proof structure to form a flexible heat-proof structure 80 in the second state;
in a specific embodiment, the step S5 of exhausting the air in the sealed cavity is to perform air extraction by using a vacuum pump. The vacuum pump is adopted to gradually discharge the air in the closed cavity of the flexible shrink film, meanwhile, the external atmospheric pressure begins to gradually act, pressure is continuously generated on the flexible heat-proof structure, and the occupied space volume of the flexible heat-proof structure is forced to be continuously reduced.
S7, as shown in fig. 8, binding the flexible heat-proof structure along the circumferential direction by using a second binding piece to form a second-state flexible heat-proof structure, turning the second-state flexible heat-proof structure by 180 degrees, connecting and fixing the structural piece and the parking tool, and maintaining the cylindrical shape of the flexible heat-proof structure by using atmospheric pressure.
Specifically, after the cylindrical first-state flexible heat protection structure 70 is compressed by atmospheric pressure to a state where the volume reduction is no longer significant, the second-state flexible heat protection structure 80 is formed by performing banding along the circumferential direction of the flexible heat protection structure 10 by using the second banding member 52. In a particular embodiment, the second ligature 51 is located at a medial position outside the flexible shrink film 60. After the structure is connected fixedly with the frock of parking, adopt the mode of ageing, through the flexible heat protection structure with fixing and park the frock and stew under the room temperature condition promptly, thereby make the internal stress natural release of flexible heat protection structure make residual stress eliminate or reduce to make the folding state of accomodating of flexible heat protection structure fixed.
According to the folding and accommodating method of the large-scale flexible heat-proof structure, the folding flow of the flexible heat-proof structure is scientifically and reasonably established under the action of the pulling force of the lifting rope and the self gravity of the flexible heat-proof structure, and the problems of difficult folding, difficult forming and difficult shape maintenance of the flexible heat-proof structure are solved. The folding device has the advantages that the gravity of the large flexible heat-proof structure and the pulling force of the lifting rope are fully utilized, so that the folding of the flexible heat-proof structure can be easily realized only by fixing the lifting rope and the lifting equipment without the joint operation of a plurality of operators, the problems that the flexible heat-proof structure can be folded only by the joint cooperation of a plurality of operators and the shape is difficult to keep after folding are solved, meanwhile, the folding state of the flexible heat-proof structure can be effectively kept and fixed, and the folding shape of the whole flexible heat-proof structure is mastered; in addition, the method reduces the folding steps, simplifies the folding process, obviously improves the folding quality and the folding efficiency, has controllable folding process, and is simple and easy to operate.
In a specific embodiment, the first binding member 51 and the second binding member 52 are bands or ropes, and may be band or rope structures, or other objects with binding function, which can achieve the binding function of the flexible heat-proof structure, and can effectively maintain the shape of the flexible heat-proof structure.
In one embodiment, the flexible shrink film 60 is made of polyvinyl chloride or polyethylene. The flexible shrink film made of the material has enough strength, is easy to fold and cannot be damaged or leak air.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims (6)

1. A folding and containing method of a large flexible heat-proof structure is characterized by comprising the following steps:
s1, fixing the flexible heat-proof structure on the structural member, and hoisting the structural member by using hoisting equipment to separate the flexible heat-proof structure from the ground;
s2, arranging the naturally drooping flexible heat-proof structure into a cone shape, marking a plurality of lifting points on the bottom edge of the flexible heat-proof structure along the circumferential direction, and connecting the lifting points with hoisting equipment by using lifting ropes to enable the bottom end of the flexible heat-proof structure to be turned upwards to form a turning part;
s3, bending the surface of the folded part inwards to form a plurality of creases, arranging the creases of the flexible heat-proof structure, and twisting all the creases along the same direction to enable the flexible heat-proof structure to be in a cylindrical folded state;
s4, binding the flexible heat-proof structure along the circumferential direction of the flexible heat-proof structure by using a first binding piece to form a first-state flexible heat-proof structure;
s5, completely wrapping the first-state flexible heat-proof structure by using a flexible shrink film, so that the first-state flexible heat-proof structure is completely positioned in a closed cavity formed by the flexible shrink film;
s6, exhausting air in the closed cavity, and compressing the flexible heat-proof structure in the first state to a cylindrical state;
s7, binding the second binding piece along the circumferential direction of the flexible heat-proof structure to form a second-state flexible heat-proof structure, turning the second-state flexible heat-proof structure by 180 degrees, connecting and fixing the structural piece and the parking tool, and maintaining the cylindrical shape of the flexible heat-proof structure by using atmospheric pressure.
2. The fold stowing method according to claim 1, characterized in that the first and second ligatures are bands or ropes.
3. The method of folding and stowing according to claim 1, wherein step S3 trimming the plurality of folds of the flexible heat protection structure further comprises:
and S31, fitting the two parts of the flexible heat-proof structure materials forming the crease together.
4. The fold-in storage method according to claim 1, wherein the same direction in step S3 is a counterclockwise direction or a clockwise direction.
5. The folding and housing method according to claim 1, wherein the air in the sealed cavity is removed by a vacuum pump in step S6.
6. The method of claim 1, wherein the flexible shrink film is made of polyvinyl chloride or polyethylene.
CN202010441199.7A 2020-05-22 2020-05-22 Folding and containing method of large flexible heat-proof structure Active CN111746877B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114030937A (en) * 2021-11-30 2022-02-11 北京新风航天装备有限公司 Electric folding device for large flexible product

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE407044B (en) * 1976-03-17 1979-03-12 Plm Ab HOSE PACKAGE FOR HOSE OF FLEXIBLE MATERIAL, METHOD AND DEVICE FOR THE REPLACEMENT OF A WEEKLY HOSE PACKAGE
US20060026927A1 (en) * 2004-08-09 2006-02-09 Pitney Bowes Incorporated Paper handling method and system for document folding for windowed envelopes
CN101455473A (en) * 2007-12-10 2009-06-17 圣保罗帆布鞋子公司 Multifunctional belt
CN109178549A (en) * 2018-07-20 2019-01-11 北京电子工程总体研究所 A kind of folding storage method of the polycyclic flexible utricule of large size
CN109292186A (en) * 2018-09-01 2019-02-01 浙江众亿智能科技有限公司 A kind of power supply line automatic strapping machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE407044B (en) * 1976-03-17 1979-03-12 Plm Ab HOSE PACKAGE FOR HOSE OF FLEXIBLE MATERIAL, METHOD AND DEVICE FOR THE REPLACEMENT OF A WEEKLY HOSE PACKAGE
US20060026927A1 (en) * 2004-08-09 2006-02-09 Pitney Bowes Incorporated Paper handling method and system for document folding for windowed envelopes
CN101455473A (en) * 2007-12-10 2009-06-17 圣保罗帆布鞋子公司 Multifunctional belt
CN109178549A (en) * 2018-07-20 2019-01-11 北京电子工程总体研究所 A kind of folding storage method of the polycyclic flexible utricule of large size
CN109292186A (en) * 2018-09-01 2019-02-01 浙江众亿智能科技有限公司 A kind of power supply line automatic strapping machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114030937A (en) * 2021-11-30 2022-02-11 北京新风航天装备有限公司 Electric folding device for large flexible product
CN114030937B (en) * 2021-11-30 2023-09-08 北京新风航天装备有限公司 Large-scale flexible product electric folding device

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