CN110051949B - Falling potential energy absorber and manufacturing method thereof - Google Patents
Falling potential energy absorber and manufacturing method thereof Download PDFInfo
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- CN110051949B CN110051949B CN201910353039.4A CN201910353039A CN110051949B CN 110051949 B CN110051949 B CN 110051949B CN 201910353039 A CN201910353039 A CN 201910353039A CN 110051949 B CN110051949 B CN 110051949B
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- 238000005381 potential energy Methods 0.000 title claims abstract description 37
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000009958 sewing Methods 0.000 claims abstract description 80
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000009998 heat setting Methods 0.000 claims abstract description 17
- 229920001778 nylon Polymers 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 6
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims description 2
- 238000009940 knitting Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D21/00—Lappet- or swivel-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Woven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a falling potential energy absorber and a manufacturing method thereof, and belongs to the technical field of safety protection equipment. The potential energy absorber comprises a connecting fastener and a baseband, wherein the baseband comprises an upper baseband, a middle baseband and a lower baseband, the connecting fastener is connected to the lower baseband, the upper baseband is connected with a safety belt, the potential energy absorber is manufactured through the working procedures of yarn preparation, warping, manufacturing, heat setting, sewing, thermal shrinkage and the like, has a good potential energy absorption effect, reduces the impact force of a human body in the falling process, and reduces the injury of the human body.
Description
Technical Field
The invention relates to the technical field of falling safety protection equipment, in particular to a falling potential energy absorber and a manufacturing method thereof.
Background
Fall safety protection technology and equipment originate in europe, and system research on fall safety protection is performed in europe and the united states, and the safety protection technology and materials mastered by the fall safety protection technology and equipment are advanced in the world, and related standards are complete.
The domestic research on the falling safety protection technology starts late, and the comprehensive and systematic research on the falling safety protection technology is lacking, so that the development of the falling safety protection system product is mainly simulated on foreign products. The method is lack of intensive research on protection mechanisms, rules of damage to human bodies caused by falling impact force, safety service behaviors and failure mechanisms of a falling protection system and a falling safety protection product evaluation system.
In the prior art, the performance of the potential energy absorber cannot simultaneously meet the following indexes: braking impact force is less than or equal to 6KN, permanent deformation is less than or equal to 1.75m, and static tension is more than or equal to 15KN; the permanent deformation is less than or equal to 1.75m, the static tension is more than or equal to 15KN, and the potential energy absorber of most manufacturers can meet the two performance indexes, but the braking impact force is more than 6KN, and the potential energy absorber cannot provide good buffering capacity for the protected person, so that redundant potential energy is absorbed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention designs a falling potential energy absorber capable of absorbing redundant falling potential energy, the potential energy absorber comprises a connecting fastener and a base band, the base band comprises an upper base band, a middle base band and a lower base band, the base band is integrally coated by a heat-shrinkable tube, the lower base band is exposed out of the lower end of the heat-shrinkable tube and fixedly connected to the fastener, the upper base band is exposed out of the upper end of the heat-shrinkable tube, the exposed end is the tail end of the upper base band, the tail end is folded back and sewn on the upper base band, a loop is formed at the folded back part, and the loop is used for connecting a safety belt. When the safety belt is used, the connecting fastener is fixed at a construction position, the ring buckle of the upper base band is connected with the safety belt for binding a human body, when a protected person falls under the condition of misoperation or no gripping of the handrail, the three base bands are sequentially opened to provide buffering capacity, and potential energy generated in the moment of falling of the human body is partially absorbed, so that the impact force received by the protected person is less than or equal to 6KN, and the protected person is prevented from being damaged.
Further, the base band is formed by weaving nylon fiber materials, and the nylon fibers form nylon fiber strands with 50-150 twists per meter. The nylon fiber has good strength and wear resistance, the wear resistance of the nylon fiber is 10 times of that of cotton fiber, 10 times of that of dry viscose fiber and 140 times of that of wet fiber. Therefore, the durability thereof is excellent.
The nylon fabric has excellent elasticity and elastic recovery, and the hygroscopicity belongs to a good variety in the synthetic fiber fabric, and has good moth resistance and corrosion resistance.
The invention also designs a manufacturing method of the potential energy absorber, which comprises the following steps,
A. selecting a material, namely selecting a nylon fiber filament material with 60-3000D.
B. Dividing yarn, namely passing 10-30 nylon fiber filaments through a yarn divider to ensure that the tension of each yarn is consistent, wherein the tension of the yarn divider is adjustable, and the tension adjusting range is 10N-60N according to the number of the yarns and the thickness specification; then a nylon fiber strand is formed by doubling and twisting, the twist 2 is set to be 50-150 twists/m, and yarns are formed by untwisting and drawing processes and serve as warp yarns and weft yarns;
c. Warping, wherein warp yarns form warp yarn coils with a certain length through a warping machine for standby;
d. Threading, namely taking a certain amount of warp yarns and weft yarns, threading the warp yarns and the weft yarns through a creel, and completing the threading process sequentially through a reed, a spline, a warp stop sheet, a palm threading sheet, a warp stop sheet and a heddle eyelet;
e. Weaving, namely starting a potential energy absorber ribbon loom, putting through yarns and overlock according to the size of a sample belt, adjusting the positions of crochet hook, weft and overlock of the ribbon loom, and introducing weft to stagger to produce the ribbon; and the knitting belt with concave-convex patterns is produced by adjusting the stitch and the position of the crochet hook, the weft needle and the lockstitch needle;
f. Performing heat setting, namely performing steam relaxation heat setting treatment on the braid produced by the braiding machine;
g. sewing, namely cutting the braid into required lengths to serve as base bands, folding to form three layers of an upper base band, a middle base band and a lower base band, putting the upper base band, the middle base band and the lower base band into a pattern sewing machine to perform sewing, sewing the end part of the upper base band to one end corresponding to the middle base band when sewing, sewing the end part of the lower base band to one end corresponding to the middle base band, respectively arranging 5cm sewing sections at two ends, respectively sewing the upper end and the lower end of the sewing sections along the width direction of the base bands, sewing 5 lines of sewing threads respectively, sewing the middle part of the sewing sections along the length direction of the base bands, and sewing 15 lines of sewing threads; the end part of the upper base band is left for a certain period, and is folded and sewn to form a ring buckle;
h. And (3) wrapping the sewn base band with a heat-shrinkable tube, exposing the ring buckle of the upper base band and the tail end of the lower base band during wrapping, enabling the heat-shrinkable tube to shrink and wrap the base band through infrared heat treatment, and fixedly connecting a fastener at the tail end of the lower base band.
Further, the steam heat setting condition in the step f is that the temperature is 150 ℃ and the time is 100min.
Further, the electromagnetic heat setting method in the step f is to pass the braid through a flat strip-shaped heating die, wherein the die is an aluminum heating die, and the aluminum heating die is powered on to heat and set the passing braid, the heating temperature is 300 ℃, and the passing speed is 1 m/min.
Further, the infrared heat setting method in the step f is to pass the braid through a far infrared tube, irradiate the braid through far infrared, and the temperature is 275 ℃ and the time is 30min.
Further, in the step a, a 1000D nylon fiber filament material is selected.
Further, in the step b, 10 nylon fiber filaments pass through a yarn separator, and the twist degree of the doubling and twisting is 80 twists/meter.
Further, the manufacturing method of the potential energy absorber further comprises the steps of detecting the braid, testing the width and the thickness of the braid and breaking strength of the braid after heat setting in the step f, cutting the braid according to the designated size by a braid cutting machine if the braid is qualified, and producing according to the process; if the processes from the step a to the step f are not qualified, the process is re-executed.
Compared with the prior art, the falling potential energy absorber and the manufacturing method thereof have the advantages that the potential energy absorber device can realize potential energy impact force, plays a role in buffering, furthest absorbs potential energy on the premise of ensuring personnel safety, reduces impact force received by a human body in the falling process, and reduces injury received by the human body. Compared with the prior art, the invention has more excellent protective performance, more reasonable overall structure and maximized safety.
Drawings
FIG. 1 is a schematic diagram of a potential energy absorber of the present invention
FIG. 2 is a flow chart of a method of making a potential energy absorber of the present invention
Description of the reference numerals
In the figure, a base band 1, a heat-shrinkable tube 2, a connecting fastener 3, an upper base band 11, a middle base band 12, a lower base band 13 and a ring fastener 111
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
Example 1
As shown in fig. 1, a first embodiment of the falling potential energy absorber designed by the invention comprises a base band 1 and a heat shrinkage tube 2 wrapped outside the base band, wherein the base band 1 is composed of an upper base band 11, a middle base band 12 and a lower base band 13, the end part of the upper base band 11 is folded back and sewn to form a loop 111, the loop 111 is used for fixing a safety belt for binding an operator, and the tail end of the lower base band 13 is fixedly provided with a connecting fastener 3.
Meanwhile, as shown in fig. 2, the present embodiment also designs a method for manufacturing the potential energy absorber, which includes the following steps:
a. Selecting a material, namely selecting a 60D nylon fiber filament material.
B. Dividing yarn, namely passing 30 nylon fiber filaments through a yarn divider to ensure that the tension of each yarn is consistent, adjusting the tension of the yarn divider to 10N, then doubling and twisting to form a nylon fiber strand, setting the twist to be 50 twists/m, and forming yarns as warp yarns and weft yarns through untwisting and drawing processes;
c. Warping, wherein warp yarns form warp yarn coils with a certain length through a warping machine for standby;
d. Threading, namely taking a certain amount of warp yarns and weft yarns, threading the warp yarns and the weft yarns through a creel, and completing the threading process sequentially through a reed, a spline, a warp stop sheet, a palm threading sheet, a warp stop sheet and a heddle eyelet;
e. Weaving, namely starting a potential energy absorber ribbon loom, threading the yarns and overlock according to the size of a sample belt, and producing a ribbon with concave-convex patterns by adjusting the stitch and the position of a crochet hook, a weft needle and a overlock needle;
f. And (3) heat setting, namely performing steam relaxation heat setting treatment on the braid produced by the ribbon loom, wherein the treatment conditions are as follows: the temperature is 150 ℃ and the time is 100min;
g. Sewing, namely cutting a braid into required length to serve as a base band, folding to form three layers of an upper base band, a middle base band and a lower base band, putting the upper base band into a pattern sewing machine to perform sewing, sewing the end part of the upper base band to the end corresponding to the middle base band during sewing, sewing the end part of the lower base band to the end corresponding to the middle base band, respectively arranging 5cm sewing sections at two ends, respectively sewing the upper end and the lower end of the sewing sections along the width direction of the base band, sewing 5 lines of sewing threads respectively, sewing the middle part of the sewing sections along the length direction of the base band, sewing 15 lines of sewing threads, leaving one section at the end part of the upper base band, and performing reverse-folding sewing to form a ring buckle;
h. And (3) wrapping the sewn base band with a heat-shrinkable tube, exposing the ring buckle of the upper base band and the tail end of the lower base band during wrapping, enabling the heat-shrinkable tube to shrink and wrap the base band through infrared heat treatment, and fixedly connecting a fastener at the tail end of the lower base band.
F, after the braid is heat-set in the first start-up production, the width and thickness of the braid and the breaking strength of the braid are tested, if the test is qualified, the braid is cut by a braid cutter according to the specified size, and the braid is produced according to the process; and if the test is failed, the processes from the step a to the step f are regulated, the process is re-executed until the test requirement is met, and the production is carried out according to the regulated process.
Example 2
The invention also designs a second embodiment of the falling potential energy absorber, and the structure of the falling potential energy absorber in the embodiment is the same as that of the embodiment 1, and the difference is that the falling potential energy absorber designed in the embodiment is manufactured according to the following method:
a. selecting a material, namely selecting a 1000D nylon fiber filament material.
B. Dividing yarn, namely passing 20 nylon fiber filaments through a yarn divider to ensure that the tension of each yarn is consistent, adjusting the tension of the yarn divider to 40N, then doubling the yarn into a strand of nylon fiber strands in a doubling mode, setting the twist to 80 twists/m, and forming yarns as warp yarns and weft yarns through untwisting and drawing procedures;
c. Warping, wherein warp yarns form warp yarn coils with a certain length through a warping machine for standby;
d. Threading, namely taking a certain amount of warp yarns and weft yarns, threading the warp yarns and the weft yarns through a creel, and completing the threading process sequentially through a reed, a spline, a warp stop sheet, a palm threading sheet, a warp stop sheet and a heddle eyelet;
e. Weaving, namely starting a potential energy absorber ribbon loom, threading the yarns and overlock according to the size of a sample belt, and producing a ribbon with concave-convex patterns by adjusting the stitch and the position of a crochet hook, a weft needle and a overlock needle;
f. Heat setting, namely passing the braid produced by the ribbon loom through a flat strip-shaped heating die, wherein the die is an aluminum heating die, and switching on a power supply to the aluminum heating die to heat and set the passing braid, wherein the heating temperature is 300 ℃, and the passing speed is 1 m/min;
g. Sewing, namely cutting a braid into required length to serve as a base band, folding to form three layers of an upper base band, a middle base band and a lower base band, putting the upper base band into a pattern sewing machine to perform sewing, sewing the end part of the upper base band to the end corresponding to the middle base band during sewing, sewing the end part of the lower base band to the end corresponding to the middle base band, respectively arranging 5cm sewing sections at two ends, respectively sewing the upper end and the lower end of the sewing sections along the width direction of the base band, sewing 5 lines of sewing threads respectively, sewing the middle part of the sewing sections along the length direction of the base band, sewing 15 lines of sewing threads, leaving one section at the end part of the upper base band, and performing reverse-folding sewing to form a ring buckle;
h. And (3) wrapping the sewn base band with a heat-shrinkable tube, exposing the ring buckle of the upper base band and the tail end of the lower base band during wrapping, enabling the heat-shrinkable tube to shrink and wrap the base band through infrared heat treatment, and fixedly connecting a fastener at the tail end of the lower base band.
Example 3
The invention also designs a third embodiment of the falling potential energy absorber, and the structure of the falling potential energy absorber in the embodiment is the same as that of the embodiment 1, and the difference is that the falling potential energy absorber designed in the embodiment is manufactured according to the following method:
a. selecting a material, namely selecting a 3000D nylon fiber filament material.
B. Dividing yarn, namely passing 10 nylon fiber filaments through a yarn divider to ensure that the tension of each yarn is consistent, adjusting the tension of the yarn divider according to the number and thickness specification of the yarns, setting the tension adjusting range to be 60N, then doubling the yarns to form a strand of nylon fiber strands in a doubling mode, setting the twist to be 150 twists/m, and forming the yarns through untwisting and drawing processes to serve as warp yarns and weft yarns;
c. Warping, wherein warp yarns form warp yarn coils with a certain length through a warping machine for standby;
d. Threading, namely taking a certain amount of warp yarns and weft yarns, threading the warp yarns and the weft yarns through a creel, and completing the threading process sequentially through a reed, a spline, a warp stop sheet, a palm threading sheet, a warp stop sheet and a heddle eyelet;
e. Weaving, namely starting a potential energy absorber ribbon loom, threading the yarns and overlock according to the size of a sample belt, and producing a ribbon with concave-convex patterns by adjusting the stitch and the position of a crochet hook, a weft needle and a overlock needle;
f. performing heat setting, namely performing heat setting on the woven belt produced by the woven belt machine through far infrared irradiation, wherein the temperature is 275 ℃ and the time is 30min;
g. Sewing, namely cutting a braid into required length to serve as a base band, folding to form three layers of an upper base band, a middle base band and a lower base band, putting the upper base band into a pattern sewing machine to perform sewing, sewing the end part of the upper base band to the end corresponding to the middle base band during sewing, sewing the end part of the lower base band to the end corresponding to the middle base band, respectively arranging 5cm sewing sections at two ends, respectively sewing the upper end and the lower end of the sewing sections along the width direction of the base band, sewing 5 lines of sewing threads respectively, sewing the middle part of the sewing sections along the length direction of the base band, sewing 15 lines of sewing threads, leaving one section at the end part of the upper base band, and performing reverse-folding sewing to form a ring buckle;
h. And (3) wrapping the sewn base band with a heat-shrinkable tube, exposing the ring buckle of the upper base band and the tail end of the lower base band during wrapping, enabling the heat-shrinkable tube to shrink and wrap the base band through infrared heat treatment, and fixedly connecting a fastener at the tail end of the lower base band.
The foregoing is merely illustrative of the present invention and is not intended to limit the scope of the invention, i.e., all such modifications and variations are within the scope of the invention as defined in the appended claims and their equivalents.
Claims (2)
1. The manufacturing method of the falling potential energy absorber is characterized in that the potential energy absorber comprises a connecting fastener and a base band, wherein the base band comprises an upper base band, a middle base band and a lower base band, the three base bands are connected through sewing, the base band is integrally coated by a heat-shrinkable tube, the tail end of the lower base band is exposed from the lower end of the heat-shrinkable tube and is fixedly connected with the fastener, the tail end of the upper base band is exposed from the upper end of the heat-shrinkable tube and forms a ring buckle for connecting a safety belt, the upper base band, the middle base band and the lower base band are sequentially opened when falling, the base band is formed by knitting nylon fiber materials, and the nylon fiber forms nylon fiber ropes with 50-150 twists per meter;
the manufacturing method comprises the following steps:
a. Selecting a material, namely selecting a nylon fiber filament material of 1000D-3000D;
b. Dividing yarn, namely passing 2-20 nylon fiber filaments through a yarn divider to ensure that the tension of each yarn is consistent, wherein the tension of the yarn divider is adjustable, and the tension adjusting range is 1N-60N according to the number of the yarns and the thickness specification; then, a nylon fiber strand is doubled in a doubling mode, the twist is set to be 50-150 twists/m, and yarns are formed through untwisting and drawing processes and serve as warp yarns and weft yarns;
c. Warping, wherein warp yarns form warp heads through a warping machine for standby;
d. threading, namely taking warp yarns and weft yarns, passing through a creel, and completing the threading process sequentially through a reed, a spline, a warp stop sheet, a palm and warp stop sheet and a heddle eyelet;
e. weaving, namely starting a ribbon loom, threading yarns and lockstitching according to the size and the shape of the required ribbon, adjusting the positions of a crochet hook, a weft needle and a lockstitching needle of the ribbon loom, introducing weft yarns to produce the ribbon in a staggered manner, and producing the ribbon with concave-convex patterns by adjusting the stitch and the position of the crochet hook, the weft needle and the lockstitching needle;
f. Performing heat setting, namely performing relaxation heat setting treatment on the braid produced by the braiding machine, wherein the heat setting treatment mode is electromagnetic heat setting; the electromagnetic heat setting method comprises the steps of passing a braid through a flat strip-shaped heating die, wherein the die is an aluminum heating die, and switching on a power supply to the aluminum heating die to heat and set the passing braid, wherein the heating temperature is 300 ℃, and the passing speed is 1 m/min;
g. Sewing, namely cutting the braid into required length to serve as a base band, folding to form three layers of an upper base band, a middle base band and a lower base band, putting the upper base band into a pattern sewing machine to perform sewing, sewing the end part of the upper base band to one end of the upper base band corresponding to the middle base band during sewing, sewing the end part of the lower base band to the other end of the middle base band, respectively arranging 5cm sewing sections at two ends, respectively sewing the upper end and the lower end of each sewing section along the width direction of the base band, sewing 5 lines of sewing threads respectively, sewing the middle part of each sewing section along the length direction of the base band, and sewing 15 lines of sewing threads; the end part of the upper base band is left for a certain period, and is folded and sewn to form a ring buckle;
h. And (3) wrapping the sewn base band with a heat-shrinkable tube, exposing the ring buckle of the upper base band and the tail end of the lower base band during wrapping, enabling the heat-shrinkable tube to shrink and wrap the base band through infrared heat treatment, and fixedly connecting a fastener at the tail end of the lower base band.
2. The method of manufacturing a drop potential absorber of claim 1, wherein in step b, 10 nylon filaments are twisted into a nylon fiber strand by a yarn separator, and the twist of the twisted yarn is 80 twists/m.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110592801A (en) * | 2019-10-09 | 2019-12-20 | 鲁普耐特集团有限公司 | Multifunctional decorative rope and manufacturing method thereof |
| CN110747560B (en) * | 2019-11-21 | 2022-03-11 | 鲁普耐特集团有限公司 | Warp and weft thread is a high-wear-resisting high-cushion buffer bag and its production method |
| CN111803819A (en) * | 2020-07-09 | 2020-10-23 | 鲁普耐特集团有限公司 | Anti-falling safety belt for live working |
| CN112981658B (en) * | 2021-03-17 | 2025-02-11 | 鲁普耐特集团有限公司 | A high temperature and high pressure resistant high energy absorption buffer and a manufacturing method thereof |
| CN113046889B (en) * | 2021-03-22 | 2022-03-29 | 东华大学 | A kind of force-increasing type fall protection buffer bag and production method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937407A (en) * | 1974-05-24 | 1976-02-10 | The United States Of America As Represented By The Secretary Of The Navy | Multiple strap shock absorber |
| CN2453967Y (en) * | 2000-12-13 | 2001-10-17 | 天津南华劳保皮件有限公司 | Hanger-plate type safety belt |
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| US4446944A (en) * | 1983-03-09 | 1984-05-08 | Forrest Mountaineering, Inc. | Shock absorbing device and method |
| JP2764118B2 (en) * | 1995-12-18 | 1998-06-11 | ミドリ安全株式会社 | Harness type safety belt |
| US7909137B2 (en) * | 2002-06-20 | 2011-03-22 | Trophyline, Llc | Support harness |
| CN201921353U (en) * | 2011-01-26 | 2011-08-10 | 浙江万里安全器材制造有限公司 | Buffer belt for aloftwork |
| CN202982984U (en) * | 2012-11-15 | 2013-06-12 | 周雪娇 | Overhead operation buffer strip |
| CN203634684U (en) * | 2013-11-22 | 2014-06-11 | 塞卡尔（北京）工业技术有限公司 | Integrated buffer connecting device |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937407A (en) * | 1974-05-24 | 1976-02-10 | The United States Of America As Represented By The Secretary Of The Navy | Multiple strap shock absorber |
| CN2453967Y (en) * | 2000-12-13 | 2001-10-17 | 天津南华劳保皮件有限公司 | Hanger-plate type safety belt |
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| CN110051949A (en) | 2019-07-26 |
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