CN110920101A - Composite material forming die - Google Patents
Composite material forming die Download PDFInfo
- Publication number
- CN110920101A CN110920101A CN201911004213.0A CN201911004213A CN110920101A CN 110920101 A CN110920101 A CN 110920101A CN 201911004213 A CN201911004213 A CN 201911004213A CN 110920101 A CN110920101 A CN 110920101A
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- CN
- China
- Prior art keywords
- vacuum
- groove
- composite material
- air guide
- depth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/544—Details of vacuum bags, e.g. materials or shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a composite material forming die, which relates to the technical field of composite material manufacturing, and comprises a die body, wherein a circle of epitaxial flange is arranged at the top of the die body, a circle of air guide groove, a vacuum communicating groove and a sealing groove are sequentially formed in the upper surface of the epitaxial flange from inside to outside, the air guide groove is communicated with the vacuum communicating groove, a distance is reserved between the vacuum communicating groove and the sealing groove, and the depth of the vacuum communicating groove is lower than that of the air guide groove.
Description
Technical Field
The invention relates to the technical field of composite material manufacturing, in particular to a composite material forming die.
Background
60 percent of the traditional composite materials are produced by using an autoclave, wherein the autoclave molding is one of the molding methods of sealing a composite material blank, a honeycomb sandwich structure or a bonding structure on a mold by using a vacuum bag, placing the mold in an autoclave, and making the mold become an advanced composite material and a component thereof with required requirements in a vacuum (or non-vacuum) state.
The autoclave molding generally adopts a vacuum bag to realize vacuum negative pressure for product molding, and is used for exhausting and pressurizing, putty adhesive tapes are generally adopted between the vacuum bag and a molding mold in the manufacturing process to realize sealing, the sealing process is relatively complex, the production efficiency is relatively low, the molding and sealing procedures of the existing composite material molding mold can be simplified through a vacuum sealing structure, but certain defects also exist in the vacuum sealing, in the vacuumizing and gas guiding process, the 'false vacuum' is locally formed due to the short connection of a gas circuit, and resin (i.e. molding raw materials) is easily pumped out to enter a vacuum system, so that the composite material product molding quality is poor, and the stability and the integrity are relatively low.
Therefore, it is a realistic meaning for those skilled in the art how to solve the above technical problems.
Disclosure of Invention
The invention aims to: the invention provides a composite material forming die, aiming at solving the technical problem that when the existing composite material forming die adopts a vacuum sealing structure, resin is easy to be pumped out and enters a vacuum system, so that the forming quality of a composite material product is poor.
The invention specifically adopts the following technical scheme for realizing the purpose:
the utility model provides a combined material forming die, includes the mould body, and mould body top is provided with the epitaxial flange of round, and the epitaxial flange upper surface has seted up round air guide groove, vacuum intercommunication groove and seal groove from inside to outside in proper order, air guide groove and vacuum intercommunication groove intercommunication, have the interval between vacuum intercommunication groove and the seal groove, and vacuum intercommunication groove degree of depth is less than the air guide groove degree of depth.
Further, the vacuum communication groove and the sealing groove are both connected with at least one vacuumizing mechanism.
Furthermore, the vacuumizing mechanism comprises a vacuum joint positioned at the bottom of the epitaxial flange, and a vacuum pipe communicated with the corresponding vacuum communicating groove or the sealing groove is arranged in the vacuum joint.
Further, the depth of the sealing groove is 10-18 mm.
Further, the depth of the air guide groove is 5-12 mm.
Furthermore, the material of the die body is P20 die steel or 6061 aluminum alloy.
The invention has the following beneficial effects:
1. when the vacuum forming mold is matched with a vacuum bag for use, the resin flowing direction between the mold body and the vacuum bag is diffused from the periphery, when the resin flows into the air guide groove, the resin is collected in the air guide groove, the air guide groove can form an air passage, the vacuum pumping efficiency is improved, the resin cannot flow into the vacuum communicating groove because the depth of the vacuum communicating groove is lower than that of the air guide groove, and finally, the resin is prevented from being pumped out when the vacuum communicating groove is used for pumping vacuum, so that the resin is prevented from entering a vacuum system, and the product forming quality is ensured.
Drawings
FIG. 1 is a schematic structural view of a composite material forming mold according to the present invention;
fig. 2 is a schematic perspective view of the present invention.
Reference numerals: 1-a mould body, 2-an epitaxial flange, 3-a gas guide groove, 4-a vacuum communicating groove, 5-a sealing groove, 6-a vacuum pumping mechanism, 6.1-a vacuum joint and 6.2-a vacuum tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
As shown in fig. 1 to 2, this embodiment provides a composite material forming die, including mould body 1, mould body 1 top is provided with the epitaxial flange 2 of round, and epitaxial flange 2 upper surface has seted up round air guide groove 3, vacuum intercommunication groove 4 and seal groove 5 from inside to outside in proper order, and air guide groove 3 and vacuum intercommunication groove 4 communicate, have the interval between vacuum intercommunication groove 4 and the seal groove 5, and the vacuum intercommunication groove 4 degree of depth is less than the air guide groove 3 degree of depth.
The whole mould body 1 is concave, the upper surface is the shaping profile of contact with resin, when using with the vacuum bag cooperation, the joint strip embedding seal groove 5 of vacuum bag, form the shaping inner chamber between vacuum bag and the mould body 1, be used for pressing into the combined material product with the resin, when the resin flows when diffusing all around, the resin flows in air guide groove 3, collect in air guide groove 3, air guide groove 3 can form the gas circuit, improve evacuation efficiency, because vacuum intercommunication groove 4 degree of depth is less than air guide groove 3 degree of depth, the resin can not flow in vacuum intercommunication groove 4, avoided taking out the resin when at last taking out the vacuum through vacuum intercommunication groove 4 evacuation, prevent that the resin from getting into vacuum system, thereby product shaping quality has been guaranteed.
As a preferred technical scheme of the invention:
the vacuum communicating groove 4 and the sealing groove 5 are both connected with at least one vacuumizing mechanism 6, the vacuumizing mechanism 6 comprises a vacuum connector 6.1 located at the bottom of the epitaxial flange 2, a vacuum pipe 6.2 communicated with the corresponding vacuum communicating groove 4 or the sealing groove 5 is arranged in the vacuum connector 6.1, the vacuum pipe 6.2 is externally connected with a vacuum system, the vacuum communicating groove 4 or the sealing groove 5 is vacuumized through the vacuum pipe 6.2, sealing is achieved by means of vacuum pressure, external force is prevented from being exerted again, sealing performance is guaranteed, and sealing and forming process operation are simplified.
As a preferred technical scheme of the invention:
the depth of the sealing groove 5 is 10-18mm, the depth of the air guide groove 3 is 5-12mm, the design is reasonable, and the sealing process and the forming process conditions are met.
As a preferred technical scheme of the invention:
the material of the die body 1 is P20 die steel or 6061 aluminum alloy, and other applicable materials can be adopted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (6)
1. The utility model provides a combined material forming die, includes mould body (1), its characterized in that, mould body (1) top is provided with the epitaxial flange of round (2), and epitaxial flange (2) upper surface has seted up round air guide groove (3), vacuum intercommunication groove (4) and seal groove (5) from inside to outside in proper order, air guide groove (3) and vacuum intercommunication groove (4) intercommunication, have the interval between vacuum intercommunication groove (4) and seal groove (5), and vacuum intercommunication groove (4) degree of depth is less than air guide groove (3) degree of depth.
2. The composite material molding die according to claim 1, wherein at least one vacuum mechanism (6) is connected to each of the vacuum communicating groove (4) and the sealing groove (5).
3. A composite material moulding mould according to claim 2, characterized in that the evacuation mechanism (6) comprises a vacuum connection (6.1) at the bottom of the extension flange (2), a vacuum tube (6.2) communicating with the corresponding vacuum communication groove (4) or sealing groove (5) being provided in the vacuum connection (6.1).
4. A composite material forming die according to claim 1, characterised in that the depth of the sealing groove (5) is 10-18 mm.
5. A composite material moulding tool according to claim 1 or 4, characterised in that the depth of the air-guide channel (3) is 5-12 mm.
6. The composite material forming die according to claim 1, wherein the die body (1) is made of P20 die steel or 6061 aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911004213.0A CN110920101A (en) | 2019-10-21 | 2019-10-21 | Composite material forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911004213.0A CN110920101A (en) | 2019-10-21 | 2019-10-21 | Composite material forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110920101A true CN110920101A (en) | 2020-03-27 |
Family
ID=69849462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911004213.0A Pending CN110920101A (en) | 2019-10-21 | 2019-10-21 | Composite material forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110920101A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4074498A1 (en) * | 2021-04-14 | 2022-10-19 | The Boeing Company | Apparatus and method for processing a composite structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2537950A1 (en) * | 2003-10-23 | 2005-05-12 | Saint-Gobain Technical Fabrics Canada, Ltd. | Reusable vacuum bag |
| CN203210696U (en) * | 2013-03-29 | 2013-09-25 | 航天材料及工艺研究所 | Vacuum bag pipe connection device for autoclave molding process |
| CN203945700U (en) * | 2014-05-22 | 2014-11-19 | 钟秉育 | The carbon fiber vacuum forming mould of tool wasteway |
| CN104718064A (en) * | 2012-10-31 | 2015-06-17 | 波音公司 | Composite tool having vacuum integrity and method of making the same |
| CN209336131U (en) * | 2019-01-17 | 2019-09-03 | 成都航空职业技术学院 | A kind of autoclave molding vacuum leading device |
-
2019
- 2019-10-21 CN CN201911004213.0A patent/CN110920101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2537950A1 (en) * | 2003-10-23 | 2005-05-12 | Saint-Gobain Technical Fabrics Canada, Ltd. | Reusable vacuum bag |
| CN104718064A (en) * | 2012-10-31 | 2015-06-17 | 波音公司 | Composite tool having vacuum integrity and method of making the same |
| CN203210696U (en) * | 2013-03-29 | 2013-09-25 | 航天材料及工艺研究所 | Vacuum bag pipe connection device for autoclave molding process |
| CN203945700U (en) * | 2014-05-22 | 2014-11-19 | 钟秉育 | The carbon fiber vacuum forming mould of tool wasteway |
| CN209336131U (en) * | 2019-01-17 | 2019-09-03 | 成都航空职业技术学院 | A kind of autoclave molding vacuum leading device |
Non-Patent Citations (2)
| Title |
|---|
| P.A. 格兰迪利: "《技术人员用塑料手册》", 31 January 1998, 烃加工出版社 * |
| 沈开猷: "《不饱和聚酯树脂及其应用》", 30 November 1988, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4074498A1 (en) * | 2021-04-14 | 2022-10-19 | The Boeing Company | Apparatus and method for processing a composite structure |
| US11999115B2 (en) | 2021-04-14 | 2024-06-04 | The Boeing Company | Apparatus and method for processing a composite structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |