CN210257338U - Vacuum leading-in forming system of sandwich glass fiber reinforced plastic structure - Google Patents
Vacuum leading-in forming system of sandwich glass fiber reinforced plastic structure Download PDFInfo
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- CN210257338U CN210257338U CN201921103112.4U CN201921103112U CN210257338U CN 210257338 U CN210257338 U CN 210257338U CN 201921103112 U CN201921103112 U CN 201921103112U CN 210257338 U CN210257338 U CN 210257338U
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Abstract
The utility model relates to the technical field of ship engineering, in particular to a vacuum leading-in forming system of a sandwich glass steel structure; the glass fiber reinforced plastic composite material comprises a glass fiber reinforced plastic mold, wherein demolding cloth is arranged on the glass fiber reinforced plastic mold, a flow guide net is laid on the glass fiber reinforced plastic mold, and a core material serving as a rib is preset at the end part of the glass fiber reinforced plastic mold and fixed; a core material connecting resin container; the vacuum bag is provided with a diversion hole in advance in the core material, and the bottom of the core material is provided with a longitudinal diversion trench and a transverse diversion trench; the vacuum bag is communicated with the resin collecting container through a vacuum pumping pipe, and the resin collecting container is externally connected with a vacuum pump; the utility model discloses with sandwich structure and glass steel panel integrated into one piece, improve labor efficiency, improve intensity of labour, guarantee good penetrating performance to once accomplish glass steel sandwich structure's shaping preparation, once only prepare the glass steel construction of pressing from both sides core, prepare than the higher glass steel construction goods of ordinary plate glass rigid strength, promote product production efficiency.
Description
Technical Field
The utility model relates to a marine engineering technical field, concretely relates to leading-in forming system in vacuum of pressing from both sides core glass steel construction.
Background
The Vacuum Infusion Process (VIP) is a technique of laying a reinforcing composite material (glass fiber, carbon fiber, basalt fiber, core material, etc.) on a fixed glass fiber reinforced plastic mold, laying a vacuum bag, laying a sealing tape, etc. on the mold, then removing the gas in the vacuum bag by a vacuum process, and forming a negative pressure between the mold and the sealing bag. The negative pressure is utilized to directly lead unsaturated resin into the vacuum bag from the pre-laid pipeline, so as to infiltrate the fiber layer and the core material, finally the whole mould is filled with the resin, and after the product is cured, the vacuum bag is removed, so that the product with the required shape is obtained from the mould. The VIP technology is that a closed system is established by adopting a single-sided mould, and unsaturated resin is cured and molded by utilizing a vacuum introduction technology.
At present, the VIP technology is applied to the fields of automobiles and wind power generation, and the glass fiber reinforced plastic vacuum introduction molding process is still combined with a manual pasting molding process in the field of ship construction due to the reasons that the molded lines of ships are complex, the molds are difficult to manufacture, the process has failure risks and the like.
The traditional vacuum infusion molding is generally of a flat plate structure, in the resin infusion process, the viscosity change of resin is not considered, a core material is not pre-installed in the vacuum infusion process, and after the hull structure is finished, the core material is additionally installed in a manual pasting mode, so that the construction workload and the labor intensity of the sandwich glass steel structure are increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a press from both sides core glass steel structure's leading-in forming system in vacuum and technology for solve prior art and do not preset the core usually at the leading-in-process in vacuum of resin when preparing pressing from both sides core glass steel structure, carry out pasting of core after the veneer structure preparation is accomplished, need secondary operation in the manufacturing process, increased work load, also polluted operational environment. The prior vacuum infusion forming technology does not consider the viscosity change of resin in the flowing process in the vacuum infusion process, and the resin is not completely soaked in the infusion process, thereby causing the defect of the glass fiber reinforced plastic structure.
The utility model discloses a following technical scheme realizes:
a vacuum leading-in forming system of a sandwich glass fiber reinforced plastic structure comprises a glass fiber reinforced plastic mold, wherein demolding cloth is arranged on the glass fiber reinforced plastic mold, a flow guide net is laid on the glass fiber reinforced plastic mold, and a core material serving as a rib is preset at the end part of the glass fiber reinforced plastic mold and fixed; the core material is connected with the resin container;
the vacuum bag is provided with a flow guide hole in advance in the core material, and the bottom of the core material is provided with a longitudinal flow guide groove and a transverse flow guide groove; the vacuum bag is communicated with the resin collecting container through an evacuation pipe, and the resin collecting container is externally connected with a vacuum pump.
Furthermore, the distance between the guiding grooves is equal to the distance between the ribs.
Furthermore, the ribs can be provided with flow guide holes and flow guide grooves.
Furthermore, the end part of the glass fiber reinforced plastic mould is provided with a sealing rubber strip.
Furthermore, the core material is provided with a core material diversion hole which is communicated with the resin container.
A vacuum leading-in forming process of a sandwich glass steel structure uses the vacuum leading-in forming system of the sandwich glass steel structure, and is characterized by comprising the following steps:
s1, arranging demoulding cloth on the glass fiber reinforced plastic mould in advance, laying a flow guide net on the demoulding cloth, presetting glass fiber reinforced materials according to the number of layers of construction design, presetting a core material serving as a rib according to the design requirement and fixing the core material at the end part;
s2, opening a diversion hole in the core material in advance in the vacuum bag, arranging diversion channels in the longitudinal and transverse directions at the bottom of the core material, wherein the distance between the transverse diversion channels is the same as that between ribs;
s3, each rib can be provided with a flow guide hole and a flow guide groove;
s4, adjusting the width of the guide groove and the distance between the resin guide pipes.
Furthermore, in the step S4, in the preparation process of the large-curvature glass fiber reinforced plastic sandwich structure, the distance between the transverse guiding grooves is properly adjusted to be small, and the resin guiding is controlled to ensure that the resin is fully soaked in the guiding process.
The utility model has the advantages that:
1. the utility model discloses can improve labor efficiency, improve intensity of labour with sandwich structure and glass steel sheet integrated into one piece.
2. The utility model discloses the core is preset in the adoption when preparation glass steel structure to leave the water conservancy diversion hole at core particular position, ensure that the resin can spread whole glass steel structure through the water conservancy diversion hole at the in-process that flows, guarantee good penetrating ability, and once accomplish the shaping preparation of glass steel sandwich structure.
3. The utility model discloses can use in the glass steel construction that needs go on pressing from both sides the core reinforcing, once only prepare the glass steel construction who presss from both sides the core, prepare than the higher glass steel construction goods of ordinary flat glass rigidity intensity, promote product production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a vacuum infusion molding system for a sandwich glass fiber reinforced plastic structure;
fig. 2 is a structural diagram of the longitudinal guide grooves and the transverse guide grooves in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a vacuum introduction molding process of a sandwich glass fiber reinforced plastic structure;
the reference numerals in fig. 1 and 2 represent:
1. a resin container; 2. a glass fiber reinforced plastic mold; 3. core material diversion holes; 4. a transverse diversion trench; 5. a core material; 6. a longitudinal diversion trench; 7. a reinforcing material; 8. vacuum bag; 9. sealing rubber strips; 10. vacuumizing a tube; 11. a resin collection vessel; 12. a vacuum pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
The embodiment discloses a vacuum leading-in forming system of a sandwich glass fiber reinforced plastic structure, which comprises a glass fiber reinforced plastic mold, wherein the glass fiber reinforced plastic mold is provided with demolding cloth and laid with a flow guide net, and is pre-provided with a glass fiber reinforced material, and a core material serving as a rib is pre-arranged at the end part of the glass fiber reinforced plastic mold and fixed; the core material is connected with the resin container;
the vacuum bag is provided with a flow guide hole in advance in the core material, and the bottom of the core material is provided with a longitudinal flow guide groove and a transverse flow guide groove (the structure diagram is shown in figure 2); the vacuum bag is communicated with the resin collecting container through an evacuation pipe, and the resin collecting container is externally connected with a vacuum pump. The distance between the guiding grooves is equal to the distance between the ribs. The ribs can be provided with diversion holes and diversion grooves. And a sealing rubber strip is arranged at the end part of the glass fiber reinforced plastic mould. The core material is provided with a core material diversion hole, and the core material diversion hole is communicated with the resin container.
The method comprises the steps of arranging demolding cloth on a glass fiber reinforced plastic mold in advance, laying a flow guide net on the demolding cloth, presetting glass fiber reinforced materials according to the number of layers designed for construction, presetting core materials serving as ribs according to design requirements, and fixing the core materials at the end parts.
The vacuum bag is provided with guide holes in advance in the core material, the diameter of each guide hole is generally 20mm, the bottom of the core material is provided with guide channels in the longitudinal and transverse directions, and the distance between the guide channels in the transverse direction is generally the same as that between ribs.
Aiming at the characteristic that the interval between transverse ribs of a glass fiber reinforced plastic boat is generally 500-600 mm, a flow guide hole and a flow guide groove can be formed in each rib.
The width of the diversion trench and the distance between resin guide pipes are adjusted by utilizing the change rule of viscosity and temperature of resin in the diversion molding process, in order to ensure the molding effect, in the preparation process of the large-curvature glass fiber reinforced plastic sandwich structure, the distance between the transverse diversion trenches is properly adjusted to be small, and the diversion of the resin is controlled to ensure that the resin is fully soaked in the leading-in process.
By adopting the vacuum introduction molding system of the sandwich glass fiber reinforced plastic structure, the core material can be preset, the layout of the vacuum conduit and the vacuum introduction pressure can be adjusted according to the viscosity change of the resin, and the molding quality of the vacuum introduction molding process is obviously improved.
The core material and the glass fiber reinforced plastic plate are integrally formed, and the core material is provided with the flow guide holes, so that the core material and the plate are well infiltrated and combined, and the yield is improved.
Example 2
The embodiment discloses a vacuum introduction molding process of a sandwich glass fiber reinforced plastic structure as shown in fig. 3, which comprises the following steps:
s1, arranging demoulding cloth on the glass fiber reinforced plastic mould in advance, laying a flow guide net on the demoulding cloth, presetting glass fiber reinforced materials according to the number of layers of construction design, presetting a core material serving as a rib according to the design requirement and fixing the core material at the end part;
s2, opening a diversion hole in the core material in advance in the vacuum bag, arranging diversion channels in the longitudinal and transverse directions at the bottom of the core material, wherein the distance between the transverse diversion channels is the same as that between ribs;
s3, each rib can be provided with a flow guide hole and a flow guide groove;
s4, adjusting the width of the guide groove and the distance between the resin guide pipes.
In S4, in the preparation process of the large-curvature glass fiber reinforced plastic sandwich structure, the distance between the transverse diversion grooves is properly adjusted to be small, and resin diversion is controlled to ensure that the resin is fully soaked in the introduction process.
The utility model discloses can improve labor efficiency, improve intensity of labour with sandwich structure and glass steel sheet integrated into one piece.
The utility model discloses the core is preset in the adoption when preparation glass steel structure to leave the water conservancy diversion hole at core particular position, ensure that the resin can spread whole glass steel structure through the water conservancy diversion hole at the in-process that flows, guarantee good penetrating ability, and once accomplish the shaping preparation of glass steel sandwich structure.
The utility model discloses can use in the glass steel construction that needs go on pressing from both sides the core reinforcing, once only prepare the glass steel construction who presss from both sides the core, prepare than the higher glass steel construction goods of ordinary flat glass rigidity intensity, promote product production efficiency.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. A vacuum leading-in forming system of a sandwich glass fiber reinforced plastic structure is characterized by comprising a glass fiber reinforced plastic mold, wherein demolding cloth is arranged on the glass fiber reinforced plastic mold, a flow guide net is laid on the glass fiber reinforced plastic mold, and a core material serving as a rib is preset at the end part of the glass fiber reinforced plastic mold and fixed; the core material is connected with the resin container;
the vacuum bag is provided with a flow guide hole in advance in the core material, and the bottom of the core material is provided with a longitudinal flow guide groove and a transverse flow guide groove; the vacuum bag is communicated with the resin collecting container through an evacuation pipe, and the resin collecting container is externally connected with a vacuum pump.
2. The vacuum infusion molding system of a sandwich glass fiber reinforced plastic structure of claim 1, wherein the distance between the transverse guiding grooves is equal to the distance between the ribs.
3. The vacuum infusion molding system of a sandwich glass fiber reinforced plastic structure of claim 1, wherein the ribs are provided with guiding holes and guiding grooves.
4. The vacuum infusion molding system of the sandwich glass fiber reinforced plastic structure as claimed in claim 1, wherein the end of the glass fiber reinforced plastic mold is provided with a sealing rubber strip.
5. The vacuum infusion molding system of a sandwich glass fiber reinforced plastic structure as claimed in claim 1, wherein the core material is provided with core material guiding holes, and the core material guiding holes are communicated with the resin container.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921103112.4U CN210257338U (en) | 2019-07-15 | 2019-07-15 | Vacuum leading-in forming system of sandwich glass fiber reinforced plastic structure |
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| CN201921103112.4U CN210257338U (en) | 2019-07-15 | 2019-07-15 | Vacuum leading-in forming system of sandwich glass fiber reinforced plastic structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328869A (en) * | 2019-07-15 | 2019-10-15 | 大连海洋大学 | A kind of the vacuum importing formation system and technique of Sandwich glass steel construction |
| CN111941876A (en) * | 2020-08-12 | 2020-11-17 | 山东英特力新材料有限公司 | Process for solving problem of dry cloth on surface of embedded part in vacuum infusion molding |
| CN113352655A (en) * | 2021-06-16 | 2021-09-07 | 上海尔华杰机电装备制造有限公司 | Machining process of integrally formed blade |
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2019
- 2019-07-15 CN CN201921103112.4U patent/CN210257338U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328869A (en) * | 2019-07-15 | 2019-10-15 | 大连海洋大学 | A kind of the vacuum importing formation system and technique of Sandwich glass steel construction |
| CN111941876A (en) * | 2020-08-12 | 2020-11-17 | 山东英特力新材料有限公司 | Process for solving problem of dry cloth on surface of embedded part in vacuum infusion molding |
| CN113352655A (en) * | 2021-06-16 | 2021-09-07 | 上海尔华杰机电装备制造有限公司 | Machining process of integrally formed blade |
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