CN203357911U - Vacuum-pumping device for manufacturing composite material pieces - Google Patents
Vacuum-pumping device for manufacturing composite material pieces Download PDFInfo
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- CN203357911U CN203357911U CN 201320377074 CN201320377074U CN203357911U CN 203357911 U CN203357911 U CN 203357911U CN 201320377074 CN201320377074 CN 201320377074 CN 201320377074 U CN201320377074 U CN 201320377074U CN 203357911 U CN203357911 U CN 203357911U
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- vacuum
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- ladder
- vacuum tube
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Abstract
The utility model relates to a vacuum-pumping device for manufacturing composite material pieces, which comprises a tooling base (1), a suction spigotjoint (2) and a base moulding surface (3), wherein a stepped air guiding slot is formed in the periphery of the upper surface of the base moulding surface (3), an air guiding hole (7) is formed in the stepped air guiding slot, and the air guiding hole (7) penetrates through the base moulding surface (3); the lower surface of the base moulding surface (3) is welded with a vacuum pipe (8) so as to enable the internal diameter of the vacuum pipe (8) to be butted with the aperture of the air guiding hole (7), the vacuum pipe (8) is communicated with a master vacuum pipe (9), and the suction spigotjoint (2) is mounted at one end of the master vacuum pipe (9). According to the utility model, air tightness of vacuum bags manufactured by the composite material pieces can be ensured under the condition that the quantity of the vacuum spigotjoints of an autoclave is not increased.
Description
Technical field
The utility model relates to the manufacture technology of composite material field, and particularly vacuum bag/autoclave legal system is made the vacuum extractor of composite material element.
Background technology
Due to the performance of composite excellence, it obtains a large amount of utilizations at aerospace field, and that transports at present large usage quantity surpasses 50% of aircaft configuration weight.The process of forming composite goods is more, in manufacturing the product such as Aero-Space, uses at present the widest vacuum bag/autoclave method that surely belongs to.
Vacuum bag/autoclave method be by the resin system dip-coating on fiber or fabric, make prepreg by certain processing procedure, then by design laying requirement paving on mould, finally by autoclave vacuumize, heat, extrusion forming goes out member.
Prepreg is very responsive to vacuum, the defect such as vacuum sealing system generation leak source, that part can produce is loose, unsticking, the porosity exceed standard.Common vacuum seal form is by sealing joint strip, vacuum bag to be encapsulated on frock, and the gas in vacuum bag is evacuated to the valve that connects on frock by the airfelt transmission, then is connected with the vacuum adapter on autoclave by connecing valve, and gas is extracted out.
Vacuum adapter in hot-press tank is limited (being equipped with according to the size of autoclave), and an autoclave is all that a plurality of frocks are advanced a tank simultaneously in the single use procedure, and a frock only can be used one to take out two vacuum adapters of a survey.For large-scale frock (more than 2 meters), gas circuit conducting pathway path length, the extraction force of vacuum is along with the lengthening in path is weakening, the complex structure places such as the zig zag on frock, airfelt is often easily oppressed, and vacuum is difficult to be guaranteed.In addition, in curing pressurized segment, remaining glue has part and infiltrates in the hole of airfelt after extruding, more affected the water conservancy diversion of gas circuit, as remaining glue infiltrates vacuum, meets the mouth place, will make whole sealing bag form false vacuum.
Summary of the invention
(1) purpose of the present invention:
In order to solve the vacuum adapter limited amount of autoclave, large-scale frock evacuated path is long, single vacuum valve may produce stifled glue phenomenon etc., is difficult to guarantee the problem of vacuum in vacuum bag, the present invention proposes a kind of vacuum bag/autoclave legal system and makes the device of composite material element.
(2) technical scheme of the present invention
The technical solution of the utility model is: a kind of vacuum extractor of manufacturing composite material element, comprise tooling base, base profile and bleed and connect mouth, the base profile is welded on the tooling base upper surface, offer two-layer ladder air slot at base profile upper surface periphery, have gas port under step trough on groove, gas port runs through the base profile; At base profile lower surface welding vacuum tube, the internal diameter of vacuum tube is docked with the gas port aperture, vacuum tube is communicated with total vacuum tube, total vacuum tube one end sealing, an end is installed to bleed and is connect mouth; Also comprise pressing plate with holes, pressing plate is placed on the ladder air slot on groove, for intercepting auxiliary material, sucks in the lower groove of ladder air slot.
Described tooling base is metal frame posture structure;
Under described ladder on groove the spacing between gas port be 200-500mm.On ladder under groove and ladder groove depth be respectively 5mm and 10mm, upper and lower groove width gap should not be less than 10mm.The quantity of described vacuum tube is consistent with the quantity of gas port; The quantity of described total vacuum tube is 2;
Hole on described pressing plate is as far as possible little, but is not inhaled into and can be as the criterion by the conducting air-flow with auxiliary material, and the quantity in hole should be many as far as possible, and general pitch of holes is the 10mm left and right.
(3) beneficial effect of the present invention
The invention solves when not needing to increase the autoclave vacuum and connect unrounded number, also can guarantee that air-flow every nook and cranny in vacuum bag all has equal extraction dynamics, the complex structure place such as the zig zag on tooling base or when remaining glue office glue stopping state occurs, also can guarantee the air-tightness of vacuum bag.
The accompanying drawing explanation
Fig. 1 manufactures the schematic diagram of composite material element vacuum extractor;
Fig. 2 manufactures composite vacuum extractor B to schematic diagram;
Fig. 3 manufactures composite vacuum extractor A-A cutaway view;
Fig. 4 manufactures the composite vacuum extractor and vacuumizes schematic diagram.
The specific embodiment
One embodiment of the present invention are as follows: as shown in FIG. 1 to 3, a kind of vacuum bag/autoclave legal system is made the device of composite material element, comprise tooling base 1, base profile 3 and bleed and connect mouth 2, base profile 3 is welded on tooling base 1 upper surface, at base profile 3 80-100mm places, upper surface week back gauge edge, offer the ladder air slot, have gas port 7 under step trough on groove 6, gas port 7 runs through base profile 3; At base profile 3 lower surface welding vacuum tubes 8, the internal diameter of vacuum tube 8 is docked with gas port 7 apertures, vacuum tube 8 is communicated with total vacuum tube 9, and the port of total vacuum tube 9 is installed to bleed and is connect mouth 2; Also comprise with holes 10 pressing plate 4, pressing plate 4 is placed on the ladder air slot on groove 5, for intercepting auxiliary material, sucks in the lower groove 6 of ladder air slot.
Described tooling base 1 is metal frame posture structure;
Under described ladder on groove 6 spacing between gas port 7 be 200-500mm.Groove 6 under groove 5 and step trough on step trough, the degree of depth is respectively 5mm and 10mm, and upper and lower groove width gap should not be less than 10mm.
The quantity of described vacuum tube is consistent with the quantity of gas port; Described total vacuum tube (9) is U-shaped, has two ports.
Hole on described pressing plate is as far as possible little, but is not inhaled into and can be as the criterion by the conducting air-flow with auxiliary material, and the quantity in hole should be many as far as possible, and general pitch of holes is the 10mm left and right.
Embodiment: as shown in Figure 4, the prepreg of composite is laid on base profile 3, then on prepreg the lay barrier film, inhale the auxiliary material such as glue-line, airfelt, vacuum bag, then with the sealant bar, vacuum bag is encapsulated on tooling base 1.Air exhaust nozzle 2 on tooling base 1 is connect to mouth with the vacuum of autoclave to be connected.After opening the vavuum pump on autoclave, gas in vacuum bag just along airfelt by groove 6 under the aperture 10 suction step troughs on pressing plate 3, gas sucks vacuum tube 8 by gas port 7 in groove 6 under ladder, import again total vacuum tube 9, last connecing by bleeding in the vacuum system that mouth 2 enters autoclave, completed the work vacuumized.
Claims (1)
1. a vacuum extractor of manufacturing composite material element, comprise tooling base (1), bleeding connects mouth (2) and base profile (3), base profile (3) is welded on tooling base (1) upper surface, it is characterized in that offering the ladder air slot at base profile (3) upper surface periphery, the ladder air slot is divided into groove (6) under groove on ladder (5) and ladder, have gas port (7) on groove under step trough (6), gas port (7) runs through base profile (3); At base profile (3) lower surface welding vacuum tube (8), the internal diameter of vacuum tube (8) is docked with gas port (7) aperture, vacuum tube (8) is communicated with total vacuum tube (9), and total vacuum tube (9) port is installed to bleed and is connect mouth (2); The pressing plate (4) that also comprises (10) with holes, it is upper that pressing plate (4) is placed in groove on the ladder air slot (5), for intercepting auxiliary material, sucks in the lower groove (6) of ladder air slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320377074 CN203357911U (en) | 2013-06-28 | 2013-06-28 | Vacuum-pumping device for manufacturing composite material pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320377074 CN203357911U (en) | 2013-06-28 | 2013-06-28 | Vacuum-pumping device for manufacturing composite material pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203357911U true CN203357911U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320377074 Expired - Lifetime CN203357911U (en) | 2013-06-28 | 2013-06-28 | Vacuum-pumping device for manufacturing composite material pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203357911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044278A (en) * | 2014-05-30 | 2014-09-17 | 江苏中陆航星航空工业有限公司 | Vacuum adsorption joint and use method thereof |
| CN106738576A (en) * | 2016-11-30 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of controllable vacuum-pumping pipeline device of aircraft transparencies mould |
-
2013
- 2013-06-28 CN CN 201320377074 patent/CN203357911U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104044278A (en) * | 2014-05-30 | 2014-09-17 | 江苏中陆航星航空工业有限公司 | Vacuum adsorption joint and use method thereof |
| CN106738576A (en) * | 2016-11-30 | 2017-05-31 | 江西洪都航空工业集团有限责任公司 | A kind of controllable vacuum-pumping pipeline device of aircraft transparencies mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangxi Hongdu Aviation Industry Limited by Share Ltd. Assignor: JIANGXI HONGDU AVIATION INDUSTRY GROUP Co.,Ltd. Contract record no.: 2014360000110 Denomination of utility model: Vacuum-pumping device for manufacturing composite material pieces Granted publication date: 20131225 License type: Exclusive License Record date: 20140609 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |