CN103101198A - Fiber winding device for preventing glue tank from solidifying and method - Google Patents
Fiber winding device for preventing glue tank from solidifying and method Download PDFInfo
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- CN103101198A CN103101198A CN2013100639152A CN201310063915A CN103101198A CN 103101198 A CN103101198 A CN 103101198A CN 2013100639152 A CN2013100639152 A CN 2013100639152A CN 201310063915 A CN201310063915 A CN 201310063915A CN 103101198 A CN103101198 A CN 103101198A
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- curing agent
- fibre bundle
- feeding head
- wound
- glue groove
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Abstract
The invention relates to a fiber winding deice for preventing a glue tank from solidifying and a method. The device is characterized that a solidifying agent container and the glue tank are separately arranged, and before a fiber bundle is subjected to gum dipping and wound on a core mold through a feeding head, a sprayer sprinkling curing agent is utilized, resin in the glue tank is guaranteed not to solidify, parts such as the glue tank, and the rubber roller and the feeding head are easy to clear after winding is completed, therefore, the cleaning efficiency is greatly improved; and meanwhile, the residual resin in the glue tank can also be recovered and used, the material waste is reduced, and the process cost is reduced. The method provided by the invention has the advantages that the operation is simple, the operational efficiency is high, and the situation that the glue tank is solidified in winding for a long time can be effectively avoided.
Description
Technical field
The invention belongs to the Wrapping formed technical field of composite fiber, particularly relate to the filament-wound device and the method that prevent the curing of glue groove that a kind of glue groove does not solidify.
Background technology
The fiber winding forming technology is one of important means that realizes the composite automatic forming, uses extremely extensively in composite product, and considerable status is arranged.Existing Filament-wound Machine technique, no matter be to adopt dry method to be wound around, semidry method is wound around, or Wet Winding Process, be all to add resin to be made into glue in curing agent in advance, then fibre bundle is by gumming device, is wound on core or oven dry (dry method is wound around) after soaking into glue again.So, for the resin system of normal temperature cure, particularly unsaturated polyester resin system or vinylite system, work long hours, in the glue groove, curing to a certain degree can occur in resin, affects the carrying out of winding process, glue implode in severe patient glue groove causes winding process to carry out.Even do not solidify in whole winding process, per tour is wound around complete, and in the glue groove, the residue glue also can't continue to use again, causes waste; And the resin of glue trench bottom generation certain thickness curing, all can adhere to the resin that one deck solidifies on the rubber roll of fibre bundle process, glue scraping plate, dividing sinker comb, feeding head, clear up very difficult.The resin system of normal temperature cure can't realize not shutting down continuous winding.Winding proceeds to certain hour, and the resin of curing will make winding to proceed, and must shut down and clear up.This can cause the waste of glue and affect normally carrying out of winding process.
Summary of the invention
One object of the present invention is that the glue that overcomes filament-wound device of the prior art easily solidifies, cause the problem of device cleaning inconvenience and waste of material, provide a kind of and divided with curing agent container and glue groove the filament-wound device that the glue groove solidifies that prevents that is arranged.
Another object of the present invention has been to provide a kind of and has used the above-mentioned filament-wound device that prevents that the glue groove from solidifying to be wound around the method for fiber.
Solving the problems of the technologies described above the technical scheme that adopts is:
prevent the filament-wound device that the glue groove solidifies, comprise wrapping machine, wrapping machine connects with core by coupling spindle, be provided with on the fibre bundle outbound course of glue groove can be along with wrapping machine running the guiding fibre bundle be wound into feeding head on core, also be provided with the sensor that can gather the core rotating speed and move the linear running speed of feeding head along with wrapping machine on wrapping machine, be provided with the curing agent shower nozzle on the fibre bundle outbound course of feeding head, the injection direction of curing agent shower nozzle is over against the fibre bundle of feeding head output, the inlet of curing agent shower nozzle links by carrier pipe and curing agent container, the curing agent container links by attachment valve and electronic metering pump, electronic metering pump is connected with control module by holding wire, control module is connected with sensor on wrapping machine by holding wire.
Distance between above-mentioned curing agent shower nozzle and feeding head is 1～20cm.
Above-mentioned curing agent shower nozzle is processed with at least 1 row round by the bottom nozzle forms with the coupling head that is connected in the upstream side of the injector.
Said nozzle and coupling head are actively coupled.
The width that above-mentioned round distributes is identical with the width of fibre bundle.
The aperture of above-mentioned round is 0.1～2mm.
A kind of method of using the above-mentioned filament-wound device that prevents the curing of glue groove to be wound around fiber, realized by following steps:
(1) will pass from the glue groove after the fibre bundle impregnation, and pass feeding head;
(2) transducing signal of the core rotating speed that collects of control module receiving sensor and feeding head are along with the transducing signal of the linear running speed of wrapping machine operation, calculate the yarn speed of fibre bundle, and control electronic metering pump running, spray curing agent on the fibre bundle that passes to feeding head by shower nozzle, control the curing agent spray rate, computational methods are:
mc′=C?Rλn?v
M in formula
c' be the curing agent spray rate, gram/minute;
C is the curing agent proportioning, i.e. the mass ratio of curing agent and resin;
R is glue yarn quality ratio, the i.e. mass ratio of resin and fibre bundle;
λ is yarn skein density, the quality of the unit length yarn during namely each yarn is rolled into a ball, gram/rice;
N is that yarn is rolled into a ball number, the quantity that the yarn that namely is used for being wound around is rolled into a ball;
V is yarn speed, and namely fibre bundle is wound into the linear velocity on core, m/min;
(3) fibre bundle that sprays curing agent is completed Filament-wound Machine along with the rotation of the core on wrapping machine is wrapped on core.
The jet width of above-mentioned curing agent is preferably identical with the width of the fibre bundle that passes feeding head.
Dimension wind of the present invention divides curing agent container and glue groove and is arranged, and utilized shower nozzle to spray curing agent be wound into core after the fibre bundle impregnation is by feeding head before, guarantee that the resin in the glue groove can not solidify, and the first-class parts of glue groove, rubber roll and wrapping wire have improved cleaning efficiency greatly being wound around complete very easily cleaning; Simultaneously, in the glue groove, remaining resin can also reclaim use, reduces waste of material, reduces process costs; Method of the present invention is simple to operate, high efficiency, and in the time of can effectively avoiding being wound around for a long time, the glue groove solidifies.
Description of drawings
Fig. 1 is the structural representation of filament-wound device.
Fig. 2 is the structural representation of the curing agent shower nozzle of Fig. 1.
Fig. 3 is the nozzle bottom structural representation of Fig. 2.
The specific embodiment
Now in conjunction with the accompanying drawings and embodiments the present invention is further illustrated, but technical scheme of the present invention is not limited only to following embodiment.
Referring to Fig. 1, the filament-wound device that prevents that the glue groove from solidifying of the present invention is to be connected by wrapping machine 1, speed probe 2, space rate sensor 3, core 4, curing agent shower nozzle 5, feeding head 6, glue groove 8, control module 9, electronic metering pump 10, curing agent container 11 and carrier pipe 12 to consist of.
the wrapping machine 1 of the present embodiment is the wrapping machine 1 with dolly common in Filament-wound Machine technique, this wrapping machine 1 connects with core 4 by coupling spindle, core 4 is axial rotation along with the operation of wrapping machine 1, two sensors are installed on wrapping machine 1, one is the speed probe 2 that detects the core rotating speed, another is the space rate sensor 3 that detects the linear running speed that feeding head produces along with the trolley travelling of wrapping machine 1, two sensors are connected with control module 9 by holding wire respectively, control module can adopt common Programmable Logic Controller, it is the Programmable Logic Controller of Mitsubishi PLC 220V FX3U-64MT/ES-A that the present embodiment adopts model.
The present embodiment also is provided with feeding head 6 on fibre bundle 7 outbound courses of glue groove 8, feeding head 6 can be fixed on the dolly of wrapping machine 1, can carry out rectilinear motion along with the trolley travelling of wrapping machine 1, be provided with injection direction over against the curing agent shower nozzle 5 of fibre bundle 7 on fibre bundle 7 outbound courses of feeding head 6.
Fig. 2, 3 have provided the structural representation of the present embodiment curing agent shower nozzle 5, at Fig. 2, in 3, curing agent shower nozzle 5 is made of nozzle 5-1 and coupling head 5-2 connection, nozzle 5-1 is the cuboid metallic article, be processed with the round that delegation's diameter is 1mm in the bottom of nozzle 5-1, the dispersion of distribution of round can be adjusted along with the width of the fibre bundle 7 that passes feeding head 6, the round dispersion of distribution of the present embodiment is 10cm, identical with the width of fibre bundle 7, be actively coupled coupling head 5-2 with radian at the arrival end of nozzle 5-1, the corresponding central angle of camber line is 45 °, nozzle 5-1 can be on coupling head 5-2 along with the rotation of feeding head 6 or swing and rotate or swing, guarantee that curing agent that nozzle 5-1 ejects just in time can evenly be sprayed on the fibre bundle 7 that feeding head 6 passes, the resin that the fibre bundle 7 that soaks into glue adheres to is solidified after running into curing agent, the inlet of coupling head 5-2 links by carrier pipe 12 and curing agent container 11, link by attachment valve and electronic metering pump 10 at curing agent container 11, electronic metering pump 10 is connected with control module 9 by holding wire, the fibre bundle 7 that sprays the overcuring agent is being wrapped on core 4 along with core 4 circumferentially rotates under the traction of feeding head 6.
When wrapping machine 1 brings into operation, core 4 can rotate along with the operation of wrapping machine 1, speed probe 2 begins to detect the rotating speed of core 4, and the signal of telecommunication that detects is converted into data signal, flow to control module 9 by holding wire, simultaneously, space rate sensor 3 detects the linear running speed of the dolly of wrapping machine 1, the linear running speed of feeding head 6 namely, the signal of telecommunication that detects is converted into data signal, be transferred to control module 9 by holding wire, calculate the yarn speed v by control module 9, computing formula is:
v
2=v
1 2+v
2 2
V in formula
1The linear running speed that produces along with wrapping machine 1 trolley travelling for feeding head 6, m/min;
v
2Be the linear velocity on core 4 surfaces, m/min.
The linear velocity v on above-mentioned core 4 surfaces
2By core 4 rotating speed w(rev/mins) and core 4 diameter D(rice) determine, computational methods are as follows:
v
2=πDw
Above-mentioned control module 9 is according to the spray rate of the yarn speed transmission command that calculates to electronic flow pump 8 and then control curing agent.
The proportioning of the resin in the curing agent in the present embodiment and glue groove 8 can be determined according to actual operating position.
A kind of above-mentioned method that prevents the filament-wound device winding fiber that the glue groove solidifies of using also is provided in the present embodiment, and it is realized by following steps:
(1) with fibre bundle 7 impregnations, pass from glue groove 8, then pass feeding head 6;
(2) control module 9 trolley travelling that receives the wrapping machine 1 that core 4 tach signals that collected by speed probe 2 and space rate sensor 3 gather drives the linear running rate signal of feeding head 6 motion generations, calculate the yarn speed of fibre bundle 7, and control electronic metering pump 10 runnings, spray curing agent on the fibre bundle 7 that passes to feeding head 6 by shower nozzle, control the curing agent spray rate, computational methods are:
m
c′=C?Rλn?v
M in formula
c' be the curing agent spray rate, gram/minute;
C is the curing agent proportioning, i.e. the mass ratio of curing agent and resin;
R is glue yarn quality ratio, i.e. the mass ratio of resin and fibre bundle 7;
λ is yarn skein density, the quality of the unit length yarn during namely each yarn is rolled into a ball, gram/rice;
N is that yarn is rolled into a ball number, the quantity that the yarn that namely is used for being wound around is rolled into a ball;
V is yarn speed, and namely fibre bundle 7 is wound into the linear velocity on core 4, m/min;
In the present embodiment, adopt unsaturated polyester resin, C=2%, R=33%, yarn skein density λ=1200tex=1200 gram/1000 meter=1.2 gram/rice, substitution numerical value can obtain m
c'=0.00792nv(gram/minute), if with 10 yarns, m
c'=0.0792v(gram/minute).
The width adjustment of the fibre bundle 7 that the spraying range of above-mentioned curing agent can pass along with feeding head 6, the spray width of curing agent is identical with the width of fibre bundle 7.
(3) fibre bundle 7 that has sprayed curing agent rotates with core 4 and is wound on core 4, completes fiber winding forming.
In the filament-wound device that prevents the curing of glue groove of above-described embodiment 1, curing agent shower nozzle 5 is comprised of nozzle 5-1 and coupling head 5-2, nozzle 5-1 is the cuboid plastic products, be processed with the round that diameter is 0.1mm in the bottom of nozzle 5-1, the dispersion of distribution of round can be adjusted along with the width of the fibre bundle 7 that passes feeding head 6, the round dispersion of distribution of the present embodiment is 1cm, and is identical with the width of fibre bundle 7.Other parts and connecting relation thereof are identical with embodiment 1.
The winding method of fiber is identical with embodiment 1.
In the filament-wound device that prevents the curing of glue groove of above-described embodiment 1, curing agent shower nozzle 5 is comprised of nozzle 5-1 and coupling head 5-2, nozzle 5-1 is the cuboid plastic products, be processed with the round that diameter is 2mm in the bottom of nozzle 5-1, the dispersion of distribution of round can be adjusted along with the width of the fibre bundle 7 that passes feeding head 6, the round dispersion of distribution of the present embodiment is 20cm, and is identical with the width of fibre bundle 7.Other parts and connecting relation thereof are identical with embodiment 1.
The winding method of fiber is identical with embodiment 1.
Above-described embodiment 1～3 prevent filament-wound device that the glue groove solidifies, the nozzle 5-1 bottom of curing agent shower nozzle 5 is processed with 2 row rounds, other parts and connecting relation thereof are with embodiment is identical accordingly.
The winding method of fiber is identical with corresponding embodiment.
In order to verify that winding method of the present invention does not affect the performance of product, the inventor compares with product of the prior art the prepared product of winding method of the present invention under identical condition, specific as follows:
The wrapping test date: on May 26th, 2012
The wrapping test place: blowing is wound around the workshop
Testing equipment: No. 1 four station wrapping machines 1
Test is rolled into a ball quantity with yarn: 10
Yarn skein density 1200g/1000 rice
Glue yarn ratio 33% curing agent ratio 2%
The 4.0MPa during design pressure of product, product of the present invention is the product explosion when 4.6MPa, and the burst pressure of existing product can reach 4.2～4.5MPa, this shows, the prepared product of winding method of the present invention can reach designing requirement, and can meet or exceed the burst pressure of product of the prior art.
Claims (8)
1. filament-wound device that prevents that the glue groove from solidifying, comprise wrapping machine (1), wrapping machine (1) connects with core (4) by coupling spindle, being provided with on fibre bundle (7) outbound course of glue groove (8) can be along with wrapping machine (1) running and guiding fibre bundle (7) is wound into the feeding head (6) on core (4), also be provided with the sensor that can gather core (4) rotating speed and move the linear running speed of feeding head (6) along with wrapping machine (1) on wrapping machine, it is characterized in that: be provided with curing agent shower nozzle (5) on fibre bundle (7) outbound course of feeding head (6), the injection direction of curing agent shower nozzle (5) is over against the fibre bundle (7) of feeding head (6) output, the inlet of curing agent shower nozzle (5) links by carrier pipe (12) and curing agent container (11), curing agent container (11) links by attachment valve and electronic metering pump (10), electronic metering pump (10) is connected with control module (9) by holding wire, control module (9) is connected with sensor on wrapping machine (1) by holding wire.
2. the filament-wound device that prevents that the glue groove from solidifying according to claim 1, it is characterized in that: the distance between described curing agent shower nozzle (5) and feeding head (6) is 1～20cm.
3. the filament-wound device that prevents that the glue groove from solidifying according to claim 2, it is characterized in that: described curing agent shower nozzle (5) is processed with at least 1 row round by the bottom nozzle (5-1) forms with the coupling head (5-2) that is connected in nozzle (5-1) arrival end.
4. the filament-wound device that prevents that the glue groove from solidifying according to claim 3, it is characterized in that: described nozzle (5-1) is actively coupled with coupling head (5-2).
5. the filament-wound device that prevents that the glue groove from solidifying according to claim 3, it is characterized in that: the width that described round distributes is identical with the width of fibre bundle (7).
6. the filament-wound device that prevents that the glue groove from solidifying according to claim 5, it is characterized in that: the aperture of described round is 0.1～2mm.
7. a right to use requires 1 the method that prevents the filament-wound device winding fiber that the glue groove solidifies, and it is characterized in that being realized by following steps:
(1) will pass from glue groove (8) after fibre bundle (7) impregnation, and pass feeding head (6);
(2) transducing signal of core (4) rotating speed that collects of control module receiving sensor and feeding head (6) are along with the transducing signal of the linear running speed of wrapping machine operation, calculate the yarn speed of fibre bundle (7), and control electronic metering pump (10) running, upward spray curing agent by shower nozzle to the fibre bundle (7) that feeding head (6) passes, control the curing agent spray rate, computational methods are:
mc′=C?Rλn?v
M in formula
c' be the curing agent spray rate, gram/minute;
C is the curing agent proportioning, i.e. the mass ratio of curing agent and resin;
R is glue yarn quality ratio, i.e. the mass ratio of resin and fibre bundle (7);
λ is yarn skein density, the quality of the unit length yarn during namely each yarn is rolled into a ball, gram/rice;
N is that yarn is rolled into a ball number, the quantity that the yarn that namely is used for being wound around is rolled into a ball;
V is yarn speed, and namely fibre bundle (7) is wound into the linear velocity on core (4), m/min;
(3) fibre bundle (7) that sprays curing agent is completed Filament-wound Machine along with the rotation of the core (4) on wrapping machine (1) is wrapped on core (4).
8. be wound around according to claim 7 the method for fiber, it is characterized in that: the jet width of described curing agent is identical with the width of the fibre bundle that passes feeding head (6) (7).
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| CN201310063915.2A CN103101198B (en) | 2013-02-28 | 2013-02-28 | Fiber winding device for preventing glue tank from solidifying and method |
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|---|---|---|---|
| CN201310063915.2A CN103101198B (en) | 2013-02-28 | 2013-02-28 | Fiber winding device for preventing glue tank from solidifying and method |
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| CN103101198A true CN103101198A (en) | 2013-05-15 |
| CN103101198B CN103101198B (en) | 2015-06-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624433A (en) * | 2014-12-19 | 2015-05-20 | 山东鲁阳股份有限公司 | Ceramic fiber grease applying system and method |
| CN105014997A (en) * | 2015-08-17 | 2015-11-04 | 核工业理化工程研究院 | Surface treatment equipment for cylindrical composite product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19734846C1 (en) * | 1997-08-12 | 1998-11-05 | Matsushita Electric Works Ltd | Prepreg manufacture for better impregnation and process plant |
| DE10306345A1 (en) * | 2003-02-15 | 2004-09-02 | Institut Für Verbundwerkstoffe Gmbh | Filament winding process for manufacture of symmetric fiber reinforced preforms involves controlled infusion of a binder onto a roving during winding |
| CN2656121Y (en) * | 2003-12-04 | 2004-11-17 | 黄海 | Glass reinforced plastic sand inclusion pipe line winding machine |
| US20090107628A1 (en) * | 2007-10-30 | 2009-04-30 | Murata Machinery, Ltd. | Resin Adhesion Method and Resin Adhesion Apparatus in Filament Winding Molding |
| CN101786327A (en) * | 2009-12-30 | 2010-07-28 | 西安交通大学 | Method for placing in-situ cured fiber by rotary wet process and device therefor |
-
2013
- 2013-02-28 CN CN201310063915.2A patent/CN103101198B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19734846C1 (en) * | 1997-08-12 | 1998-11-05 | Matsushita Electric Works Ltd | Prepreg manufacture for better impregnation and process plant |
| DE10306345A1 (en) * | 2003-02-15 | 2004-09-02 | Institut Für Verbundwerkstoffe Gmbh | Filament winding process for manufacture of symmetric fiber reinforced preforms involves controlled infusion of a binder onto a roving during winding |
| CN2656121Y (en) * | 2003-12-04 | 2004-11-17 | 黄海 | Glass reinforced plastic sand inclusion pipe line winding machine |
| US20090107628A1 (en) * | 2007-10-30 | 2009-04-30 | Murata Machinery, Ltd. | Resin Adhesion Method and Resin Adhesion Apparatus in Filament Winding Molding |
| CN101786327A (en) * | 2009-12-30 | 2010-07-28 | 西安交通大学 | Method for placing in-situ cured fiber by rotary wet process and device therefor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624433A (en) * | 2014-12-19 | 2015-05-20 | 山东鲁阳股份有限公司 | Ceramic fiber grease applying system and method |
| CN105014997A (en) * | 2015-08-17 | 2015-11-04 | 核工业理化工程研究院 | Surface treatment equipment for cylindrical composite product |
| CN105014997B (en) * | 2015-08-17 | 2017-03-29 | 核工业理化工程研究院 | The surface processing equipment of tubular composite material product |
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| CN103101198B (en) | 2015-06-17 |
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