CN113001835A - Forming die of curved surface multi-sink-groove structure - Google Patents
Forming die of curved surface multi-sink-groove structure Download PDFInfo
- Publication number
- CN113001835A CN113001835A CN202110268965.9A CN202110268965A CN113001835A CN 113001835 A CN113001835 A CN 113001835A CN 202110268965 A CN202110268965 A CN 202110268965A CN 113001835 A CN113001835 A CN 113001835A
- Authority
- CN
- China
- Prior art keywords
- forming
- groove
- piece
- sinking groove
- female die
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- 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
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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 forming die of a curved surface multi-sink-groove structure, which comprises a female die body for forming a curved surface, wherein the female die body is provided with a forming surface, and the forming surface is of a cambered surface structure in at least one direction; a plurality of sinking groove forming convex blocks are arranged on the forming surface at intervals along the direction of the cambered surface curve, and the demoulding direction of each sinking groove forming convex block is superposed with the normal direction of a corresponding point on the cambered surface curve; the sinking groove forming lug comprises a support piece and a forming piece, the support piece is fixedly connected with the female die body, and the forming piece is detachably fixed on the support piece in a sleeved mode and used for forming a sinking groove in the surface of a curved surface; the supporting piece is made of a hard material without deformability, and the forming piece is made of a soft material with certain deformability. The integral demolding of all the sinking groove molding lugs can be finished even if the problem that the draft angles of all the sinking groove molding lugs are mutually interfered exists; meanwhile, the forming quality and effect of the curved surface can be effectively improved.
Description
Technical Field
The invention relates to the technical field of forming dies, in particular to a forming die with a curved surface multi-sink-groove structure, which is suitable for a composite material VIMP process.
Background
The hovercraft is an important vehicle for sailing at high speed by forming an air cushion on the water surface or the ground by utilizing high-pressure air to lift part or all of a ship body so as to reduce the running resistance of the ship body. The air propeller is adopted to propel the air cushion vehicle, and the bottom of the air cushion vehicle leaves the water surface during navigation, so that the air cushion vehicle has better landing rapidity. In military affairs, the air cushion boat is the most ideal landing combat transportation equipment, the speed of land rushing to the beach is greatly improved due to high navigational speed and landing performance, the tactical abruptness is increased, and the air cushion boat is favorable for getting on and breaking suddenly. The cushion-lifting type hovercraft can sail on water and ice and snow, can land on interfaces such as beaches and the like, is parked at coastal islands without wharf facilities, implements wharf-free organization uninterrupted logistics supply, and is favorable for assaulting to depth; meanwhile, the boat is an ideal boat type for hunting and sweeping boats. In addition, the device can also be used for taking charge of patrol warning, transportation, emergency rescue and disaster relief and other tasks among shoals, beaches and islands. Hovercraft has thus found widespread practical use.
The air guide pipe of the hovercraft is an important component of the hovercraft, in the existing air guide pipe manufacturing process, the outer wall and the inner wall of a guide pipe cylinder body need to be subjected to split vacuum infusion molding, a row of sunken grooves are directly formed on two sides of each split wall respectively in the molding process, and a plurality of split walls are assembled into a cylindrical structure through the matching of the sunken grooves and bolts during assembly. However, because the split wall is of a hyperboloid structure, the normal directions of the sinking grooves in the same row are different, and the problem that the sinking groove forming lugs forming the sinking grooves cannot be integrally demoulded due to mutual interference of drawing angles is caused. In order to solve the problem of mutual interference of the drawing angles, the prior art adopts the scheme that after each sunken groove forming lug is formed independently, a bolt is adopted to fasten the sunken groove forming lug on the wall of the female die through the wall of the female die; in the demolding process, the bolts are firstly removed to separate the sinking groove molding lugs from the two structural members of the female die body, so that all the sinking groove molding lugs can be simultaneously demolded. However, such a scheme not only requires the individual design and manufacture of each sinking groove forming bump, which causes the problems of complicated process and the like; more importantly, the sink forming convex block is fixedly connected with the wall of the female die through a bolt, and the air leakage problem of a vacuum infusion area can be caused at the gap of a connecting hole formed in the wall of the female die made of the composite material, so that the implementation of the VIMP process is seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a forming die for the split wall of the flow guide pipe of the hovercraft, which can complete one-time demoulding of all sinking groove forming lugs even if the problem of mutual interference of the drawing angles exists among the sinking groove forming lugs.
In order to achieve the purpose, the invention provides a forming die of a curved surface multi-sink-groove structure, which comprises a female die body, wherein a forming surface is arranged on the female die body, and the forming surface is of a cambered surface structure in at least one direction;
a plurality of sinking groove forming convex blocks are arranged on the forming surface at intervals along the direction of the cambered surface curve, and the demoulding direction of each sinking groove forming convex block is superposed with the normal direction of a corresponding point on the cambered surface curve;
the sinking groove forming lug comprises a support piece and a forming piece, the support piece is fixedly connected with the female die body, and the forming piece is detachably fixed on the support piece in a sleeved mode and used for forming the sinking groove in the outer surface of the curved surface;
the support member is made of a hard material, and the forming member is made of a soft material.
In one embodiment, the supporting part is a columnar structure, the axis direction coincides with the bottom surface normal direction, a mounting groove configured with the supporting part is formed in the bottom of the forming part, and the forming part is sleeved on the supporting part through the mounting groove.
In one embodiment, the side wall of the supporting member is provided with a fixing protrusion extending outwards, the wall of the mounting groove is provided with a fixing groove corresponding to the fixing protrusion, and when the forming member is sleeved on the supporting member, the fixing protrusion is embedded into the fixing groove.
In one embodiment, the support is integrally formed with the female die body.
In one embodiment, the molding member is made of a silicone material having a certain deformability.
The invention provides a forming die of a curved surface multi-sinking groove structure, which forms sinking groove forming lugs together with a forming part through a support piece, so that even if the drawing angles of the forming lugs are different, the forming part is made of a soft material with certain deformability, so that after the forming part can make adaptive deformation based on the drawing direction during drawing, the forming part is separated from a die body along with a product, and the demoulding operation of all the sinking groove forming lugs can be completed at one time; meanwhile, the supporting piece and the formed piece are connected in a sleeved mode, and the bolt does not need to be additionally fixed, so that the bolt does not need to be detached in the demolding process, the vacuum filling air tightness is effectively guaranteed, and the forming quality and the forming effect of the curved surface are improved.
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 the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a forming mold according to an embodiment of the present invention;
FIG. 2 is a schematic view of a molding surface in a length direction according to an embodiment of the present invention;
FIG. 3 is a schematic view of a forming surface in a width direction in an embodiment of the present invention;
FIG. 4 is a diagram illustrating a first embodiment of a sink-formed bump according to an embodiment of the present invention;
fig. 5 is a diagram illustrating a second embodiment of a sink-formed bump according to an embodiment of the present invention.
The reference numbers illustrate: the female die comprises a female die body 1, a forming surface 101, a side blocking piece 2, a sink forming lug 3, a supporting piece 301, a forming piece 302 and a bracket 4.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1-3 show a forming mold of a curved multi-submerged groove structure disclosed in this embodiment, which takes a mold for forming a split wall of an air draft tube on an air cushion ship as an example. This forming die of curved surface heavy groove structure more includes the bed die body 1 that is used for the curved surface shaping, has shaping surface 101 on the bed die body 1, and shaping surface 101 is the cambered surface structure in one direction at least, and when specifically in this embodiment, shaping surface 101 is cambered surface structure in length direction and width direction. The position that corresponds the profiled surface 101 both sides on the female die body 1 is equipped with limit shelves spare 2, and detachable is fixed continuous between limit shelves spare 2 and the female die body 1, and this limit shelves spare 2 is used for connecting the shaping of face on the split wall. A plurality of sunken groove forming convex blocks 3 are arranged on the forming surface 101 at intervals along the direction of the arc curve, the demolding direction of each sunken groove forming convex block 3 coincides with the normal direction of a corresponding point on the arc curve, and when the forming surface 101 is specifically used in the embodiment, a plurality of sunken groove forming convex blocks 3 are arranged on the forming surface 101 at intervals close to the side rail and along the length direction of the forming surface 101 so as to be used for forming sunken grooves on the surface of the split wall. When the two split walls are connected, the connecting surfaces of the two split walls are attached to each other and fixed through bolts arranged in the sinking grooves.
In this embodiment, the sinking groove forming bump 3 includes a supporting member 301 and a forming member 302, the supporting member 301 is fixedly connected to the female die body 1, and the forming member 302 is detachably and fixedly sleeved on the supporting member 301 for forming the sinking groove on the outer surface of the split wall; the supporting member 301 is made of a hard material without deformability, and the molding member 302 is made of a soft material with certain deformability. Therefore, even if the drawing angles of the forming bumps are different, the forming piece 302 is made of soft material, so that the forming piece 302 can be separated from the die body along with the product after the forming piece 302 is deformed adaptively based on the drawing direction during drawing, and the demoulding operation of all the sinking groove forming bumps 3 can be completed at one time; meanwhile, the supporting piece 301 and the forming piece 302 are connected in a sleeved mode, and extra bolts are not needed to be fixed, so that the bolts do not need to be detached in the demolding process, the vacuum infusion air tightness is effectively guaranteed, and the forming quality and the forming effect of the split wall are improved.
Referring to fig. 4, a first embodiment of the sinking groove forming bump 3 is shown, in which the supporting member 301 is a columnar structure, an axial direction of the columnar structure coincides with a normal direction of a corresponding point on the curved surface curve, a mounting groove configured with the supporting member 301 is disposed at the bottom of the forming member 302, and the forming member 302 is sleeved on the supporting member 301 through the mounting groove. Referring to fig. 5, a second embodiment of the sunken groove forming bump 3 is shown, in which the supporting member 301 is a columnar structure, an axial direction of the columnar structure coincides with a normal direction of a corresponding point on the curved surface curve, a mounting groove configured with the supporting member 301 is disposed at the bottom of the forming member 302, the forming member 302 is sleeved on the supporting member 301 through the mounting groove, wherein a fixing protrusion extending outward is disposed on a sidewall of the supporting member 301, a fixing groove corresponding to the fixing protrusion is disposed on a wall of the mounting groove, and when the forming member 302 is sleeved on the supporting member 301, the fixing protrusion is embedded in the fixing groove.
It should be noted that the slot-sinking forming bump 3 in this embodiment is not limited to the two embodiments, and the connection manner between the supporting member 301 and the forming member 302 only needs to satisfy the following requirements: the molding member 302 may be detached from the supporting member 301 by an external force.
In this embodiment, the edge blocking piece 2 and the female die body 1 are detachably and fixedly connected by means of an embedded connection, that is, a placement groove is formed in the female die body 1 at a position corresponding to the edge blocking piece 2, and the edge blocking piece 2 is fixedly embedded in the placement groove. Preferably, a sealing rubber strip is arranged on a connecting gap between the side stop piece 2 and the female die body 1, so that the air tightness in the split wall forming process is effectively ensured.
In this embodiment, the supporting member 301 and the female die body 1 are both made of a metal material, and the supporting member 301 may be fixedly connected to the female die body 1 by welding, or the supporting member 301 and the female die body 1 may be directly formed integrally.
In this embodiment, the molding member 302 is made of a silicone material with a certain deformability, and of course, the molding member 302 is not limited to the silicone material, and other soft materials with similar physical properties may be used to prepare the molding member 302.
In this embodiment, the forming mold further includes a support 4, and the female mold body 1 is fixed on the support 4.
In this embodiment, the number of the sinking groove forming protrusions 3, the installation positions of the sinking groove forming protrusions 3 on the female die body 1, and the specific structure of the outer surface of the forming member 302 in the sinking groove forming protrusions 3 can be determined according to the actual split wall, and therefore, the number is not limited in this embodiment.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The forming die of the curved surface multi-sink-groove structure is characterized by comprising a female die body, wherein a forming surface is arranged on the female die body, and the forming surface is of a cambered surface structure in at least one direction;
a plurality of sinking groove forming convex blocks are arranged on the forming surface at intervals along the direction of the cambered surface curve, and the demoulding direction of each sinking groove forming convex block is superposed with the normal direction of a corresponding point on the cambered surface curve;
the sinking groove forming lug comprises a support piece and a forming piece, the support piece is fixedly connected with the female die body, and the forming piece is detachably fixed on the support piece in a sleeved mode and used for forming the sinking groove in the outer surface of the curved surface;
the support member is made of a hard material, and the forming member is made of a soft material.
2. The mold for molding a curved multi-slot structure according to claim 1, wherein the supporting member is a cylindrical structure, the axis direction coincides with the normal direction of the bottom surface, the bottom of the molding member is provided with a mounting groove configured with the supporting member, and the molding member is sleeved on the supporting member through the mounting groove.
3. The mold for forming a curved multi-countersunk groove structure as claimed in claim 2, wherein the supporting member has a fixing protrusion extending outwardly from a sidewall thereof, and the mounting groove has a fixing groove corresponding to the fixing protrusion, the fixing protrusion being inserted into the fixing groove when the molding member is fitted over the supporting member.
4. A curved multi-groove forming die according to claim 1, 2 or 3, wherein the supporting member is integrally formed with the female die body.
5. The forming die of curved multi-slot structure according to claim 1, 2 or 3, wherein the forming member is made of silicone material with certain deformability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268965.9A CN113001835B (en) | 2021-03-12 | 2021-03-12 | Forming die of curved surface multi-sink-groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268965.9A CN113001835B (en) | 2021-03-12 | 2021-03-12 | Forming die of curved surface multi-sink-groove structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113001835A true CN113001835A (en) | 2021-06-22 |
| CN113001835B CN113001835B (en) | 2022-09-02 |
Family
ID=76405900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110268965.9A Active CN113001835B (en) | 2021-03-12 | 2021-03-12 | Forming die of curved surface multi-sink-groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113001835B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211773A (en) * | 2021-11-23 | 2022-03-22 | 江苏东方神鹰空天新材料科技有限公司 | Carbon fiber composite material layer manufacturing tool and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318783A (en) * | 2021-01-04 | 2021-02-05 | 中国人民解放军国防科技大学 | Vacuum filling forming die for conical cylinder with smooth outer wall and sink groove |
-
2021
- 2021-03-12 CN CN202110268965.9A patent/CN113001835B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112318783A (en) * | 2021-01-04 | 2021-02-05 | 中国人民解放军国防科技大学 | Vacuum filling forming die for conical cylinder with smooth outer wall and sink groove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211773A (en) * | 2021-11-23 | 2022-03-22 | 江苏东方神鹰空天新材料科技有限公司 | Carbon fiber composite material layer manufacturing tool and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113001835B (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113001835B (en) | Forming die of curved surface multi-sink-groove structure | |
| JP2012533467A (en) | Vehicle explosion-proof safety tire | |
| US20010037846A1 (en) | Cellular tire liner for high tire deflection applications | |
| CN211918855U (en) | Combined loading wheel of rubber track traveling system | |
| CN202481019U (en) | Safeguard construction of automobile | |
| CN2440002Y (en) | Anti-collosion protector for ship, boat and warship | |
| CN103133592B (en) | Moving body aseismatic mechanism and moving body pneumatic spring, use the moving body vehicle of this moving body aseismatic mechanism or pneumatic spring | |
| FR2894931A1 (en) | Buoyant apparatus for e.g. ship, has shell with reinforcement which is sized for housing anti-impact lining, and base combining with shell to form assembly with continuous outer surface, where lining has skin and structural part | |
| CN218506085U (en) | Float bowl | |
| EP1436191B1 (en) | Water vehicle with an inflatable stabilization ring | |
| CN217320663U (en) | Improved ship | |
| CN209795079U (en) | Tyre for vehicle | |
| CN209112388U (en) | A kind of high speed motor public affair ship of V-type hull | |
| CN209634695U (en) | A kind of ship with beam | |
| CN201941959U (en) | Float and float assembly device | |
| CN102717867B (en) | Wearable semi-rigid inflatable boat | |
| CN204623307U (en) | A kind of outside rear-view mirror hermetically-sealed construction | |
| CN102555960A (en) | Safety structure for automobile | |
| CN219639433U (en) | Sealing element for automobile body hole | |
| CN210415144U (en) | 3D steel sheet | |
| JPH0159955B2 (en) | ||
| CN210970671U (en) | Filler cap buffer block and vehicle | |
| CN204846350U (en) | Crank formula connecting rod rudder with gas -tight loses and interior seal structure | |
| CN216580329U (en) | Automobile horn pressing pin | |
| CN218440198U (en) | Wear-resistant gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |