CN112318782A - Combined material transmission case components of a whole that can function independently mould and combined material transmission case molding system - Google Patents
Combined material transmission case components of a whole that can function independently mould and combined material transmission case molding system Download PDFInfo
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- CN112318782A CN112318782A CN202110000703.4A CN202110000703A CN112318782A CN 112318782 A CN112318782 A CN 112318782A CN 202110000703 A CN202110000703 A CN 202110000703A CN 112318782 A CN112318782 A CN 112318782A
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- split
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- composite material
- end cover
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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
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
- B29C33/302—Assembling a large number of mould elements to constitute one cavity
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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
- B29C33/44—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
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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
- B29C70/443—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 and impregnating by vacuum or injection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
Abstract
The invention discloses a split die of a composite material launching box and a composite material launching box forming system, wherein the split die comprises an outer die assembly, an inner die assembly, a mandrel assembly and an end cover; the inner mold component comprises a plurality of inner mold segments, each inner mold segment is connected to form the inner mold component with a cylindrical structure, and each inner mold segment is fixedly connected with the mandrel component; the outer mold component comprises a plurality of outer mold segments, each outer mold segment is connected to form the outer mold component with a cylindrical structure, the outer mold component is arranged on the inner mold component, and a cavity is enclosed between the outer mold component and the inner mold component; the two end covers are arranged, one end cover is connected with one ends of the outer die assembly and the mandrel assembly, and the other end cover is connected with the other ends of the outer die assembly and the mandrel assembly; one end cover is provided with a glue inlet channel, and the other end cover is provided with a glue outlet channel. By adopting the inner film and the outer film with the split structure, the composite material launching box sample piece can be successfully manufactured by smoothly demoulding through a conventional auxiliary tool and a demoulding machine, and the technical requirement of product design is met.
Description
Technical Field
The invention relates to the technical field of composite material forming dies, in particular to a split die without draft angle for a composite material launching box and a composite material launching box forming system.
Background
The launching box product provides a directional initial launching angle for the missile to fly out, ensures the initial attitude of the missile, and has high dimensional precision of the inner track of the product and bearing deformation smaller than 1.5 mm. Influenced by the emission state, the cross-sectional dimension of both ends of the composite material emission box needs to be consistent, no draft angle exists, the bearing deformation is small, and the problem of abnormal demolding can occur after the existing mold is integrally cured and molded by adopting an RTM (resin transfer molding) filling process.
Disclosure of Invention
Aiming at the problems of no draft angle of the composite material launching box and difficult demoulding of products in the prior art, the invention provides the split mould of the composite material launching box and the composite material launching box forming system.
In order to achieve the aim, the invention provides a split die for a composite material launching box, which is characterized by comprising an outer die assembly, an inner die assembly, a mandrel assembly and an end cover;
the inner mold assembly comprises a plurality of inner mold segments, each inner mold segment is sequentially connected to form the inner mold assembly with a cylindrical structure, and each inner mold segment is fixedly connected with the mandrel assembly;
the outer mold component comprises a plurality of outer mold segments, the outer mold segments are sequentially connected to form the outer mold component of a cylindrical structure, the outer mold component is sleeved on the inner mold component, and a cavity is formed between the outer mold component and the inner mold component;
the number of the end covers is two, one end cover is fixedly connected with one end of the outer die assembly and one end of the mandrel assembly, and the other end cover is fixedly connected with the other end of the outer die assembly and the other end of the mandrel assembly;
one end cover is provided with a glue inlet channel communicated with the cavity, and the other end cover is provided with a glue outlet channel communicated with the cavity.
In one embodiment, a draft angle is provided between the mandrel assembly and the inner mold split.
In one embodiment, a draft angle is arranged between two adjacent inner mold segments.
In one embodiment, the mandrel assembly comprises a hollow main shaft and connecting shafts which are arranged at two ends of the main shaft and are coaxial with the main shaft;
the connecting shaft is fixedly connected with the end cover, and a clamping ring is sleeved on the connecting shaft;
each inner mold split is fixedly connected with the main shaft, and the end part of each inner mold split is fixedly connected with the clamping ring of the corresponding end.
In one embodiment, the two adjacent inner mold segments are installed and positioned by a positioning piece.
In one embodiment, the outer mold split is provided with a glue outlet corresponding to a glue flowing dead angle, and the glue outlet is provided with an outer mold plug.
In one embodiment, a glue inlet is formed in the outer wall of the end cover corresponding to the glue inlet channel, a glue outlet is formed in the inner wall of the end cover, a glue flow passage communicating the glue inlet with the glue outlet is formed in the end cover, the number of the glue inlets is at least one, the number of the glue outlets is multiple, and the glue outlets are uniformly distributed at the end of the cavity.
In one embodiment, the outer mold split is provided with an air receiving hole, and the air receiving hole is provided with a detachable sealing plug.
In one embodiment, sealing structures are arranged between the adjacent outer mold split, between the adjacent inner mold split, between the inner mold split and the mandrel assembly, between the outer mold split and the end cover, and between the mandrel assembly and the end cover.
In order to achieve the purpose, the invention also provides a composite material launching box forming system, which comprises a resin barrel, a glue storage tank, a vacuum pump and the composite material launching box split mold;
the resin barrel is communicated with a glue inlet channel in the split die of the composite material launching box through a rubber pipe, the glue storage tank is communicated with a glue outlet channel in the split die of the composite material launching box, and the vacuum pump is communicated with the glue storage tank through an air pipe.
The invention provides a split mold of a composite material launching box and a composite material launching box molding system, wherein the mold adopts an inner membrane component and an outer membrane component with split structures, a cavity is defined by the inner membrane component and the outer membrane component to mold a product, and based on the product without draft angles, draft angles are respectively arranged between a mandrel component and the inner membrane split and between two adjacent inner membrane splits, so that the product can be smoothly demolded through a conventional auxiliary tool and a demolding machine, and a composite material launching box sample part meeting the technical requirements of product design is successfully manufactured.
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 diagram of an exploded structure of a split mold of a composite material launch box in an embodiment of the invention;
FIG. 2 is a schematic view of a connection structure of an inner membrane module and a mandrel module according to an embodiment of the present invention;
FIG. 3 is a schematic side view of the outer membrane module, inner membrane module and mandrel module of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a positioning member according to an embodiment of the present disclosure;
FIG. 5 is a schematic representation of the results of a CAE analysis of the deflection deformation of a mandrel assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a composite material launch box molding system in an embodiment of the invention.
Reference numerals: the device comprises an outer die split 1, an outer die plug 11, an air receiving hole 12, a first reinforcing rib plate 13, an inner die split 2, a second reinforcing rib plate 21, a main shaft 31, a connecting shaft 32, a clamping ring 33, an end cover 4, a positioning piece 5, a first positioning part 51, a second positioning part 52, a cavity 6, a resin barrel 7, a glue storage tank 8 and a vacuum pump 9.
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.
The launching box product provides a directional initial launching angle for the missile to fly out, ensures the initial attitude of the missile, and has high dimensional precision of the inner track of the product and bearing deformation smaller than 1.5 mm. The sizes of the cross sections of the two ends of the die are required to be consistent under the influence of the emission state, and after the RTM (resin transfer molding) pouring process is adopted for integral curing forming, the normal demoulding of the product can be influenced without the draft.
In the embodiment, the inner and outer die structures are optimized and determined through finite element analysis and calculation, and the inner die part adopts a die design scheme of split combination of the inner die split 2 and the mandrel component aiming at the characteristics of no draft angle and difficult demoulding of products. The CAD/CAE technology is utilized to design and optimize the die, the die can be smoothly demoulded through the auxiliary tool and the demoulding machine, the sample piece is successfully manufactured, and the technical requirement of product design is met.
Fig. 1-4 show a split mold for a composite material launch box, which includes an outer mold component, an inner mold component, a mandrel component and an end cap 4, wherein the outer mold component forms an outer mold part of the entire mold, and the inner mold component and the mandrel component form an inner mold part of the entire mold. Specifically, the internal mold assembly comprises a plurality of internal mold split parts 2, each internal mold split part 2 is sequentially connected to form the internal mold assembly with a cylindrical structure, and each internal mold split part 2 is fixedly connected with the mandrel assembly. Meanwhile, the outer mold component comprises a plurality of outer mold segments 1, the outer mold segments 1 are sequentially connected to form the outer mold component of a cylindrical structure, the outer mold component is sleeved on the inner mold component, and a cavity 6 is defined between the outer mold component and the inner mold component. The number of the end covers 4 is two, one end cover 4 is fixedly connected with one end of the outer die assembly and one end of the mandrel assembly, and the other end cover 4 is fixedly connected with the other end of the outer die assembly and the other end of the mandrel assembly; meanwhile, one end cover 4 is provided with a glue inlet channel communicated with the cavity 6, and the other end cover 4 is provided with a glue outlet channel communicated with the cavity 6. And the adjacent outer mold segments 1 and the end cover 4 are connected with the flange through bolts.
Because the size at the product both ends of combined material transmission case is unanimous, and then can't set up the draft on die cavity 6, through set up the draft respectively between dabber subassembly and interior mould split 2, between two adjacent interior mould split 2 in this embodiment. The demolding process comprises the following steps: after the product is cured and molded, the outer mold component is of a split structure, so the outer mold split 1 is preferentially pulled out, after the flash on the product is cleaned, the rest part is placed on a pipe removing machine for positioning, the pipe removing machine firstly pulls out the mandrel component and then pulls out the inner mold split 2 one by one, so that the prepared product meets the design requirement of a non-drawing angle.
In this embodiment, the inner mold split 2 includes a molding wall, a connecting wall, and a second reinforcing rib plate 21 disposed between the molding wall and the connecting wall, wherein the molding wall is used for enclosing a cavity 6 with the outer mold component, the connecting wall is used for connecting the mandrel component, and the second reinforcing rib plate 21 is used for improving the structural rigidity of the mold, so that the requirement of bending deformation of the product is met.
In this embodiment, the draft angle between the mandrel assembly and the inner mold split 2 is set to 4-6 °, preferably 5 °. The specific implementation structure is as follows: the part of the mandrel component, which is in contact with the connecting wall, is set to be a cone structure, and the angle between the generatrix of the cone structure and the axis is designed to be 5 degrees, namely the setting of the draft angle between the mandrel component and the inner mold split 2 is completed.
In the embodiment, the draft angle between two adjacent inner mold segments 2 is set to be 4-6 degrees, and preferably 5 degrees. The specific implementation structure is as follows: when each internal mold split 2 is structurally designed, an included angle between a connecting line between two adjacent internal mold splits 2 and the axis of the mandrel component is 5 degrees, namely the setting of the draft angle between the mandrel component and the internal mold split 2 is completed.
In this embodiment, the mandrel assembly includes a hollow main shaft 31, and connecting shafts 32 disposed at two ends of the main shaft 31 and coaxial with the main shaft 31; the connecting shaft 32 is fixedly connected with the end cover 4, and a clamping ring 33 is sleeved on the connecting shaft 32; each inner mould split 2 is fixedly connected with the main shaft 31, and the end part of each inner mould split 2 is fixedly connected with the clamping ring 33 of the corresponding end.
Aiming at the product characteristics of the composite material launching box, the overall length of the die design in the embodiment is 2.9m, the middle deflection deformation is less than 1.5mm, and the mechanical model of the die is similar to a simple beam. The analysis working conditions are as follows: the two ends are restrained, the die bears the dead weight load of 1180KG, and 100KG pressure is applied to the upper surface. Therefore, the first reinforcing rib plate 13 is arranged on the outer side wall of the outer die split 1, the second reinforcing rib plate 21 is arranged between the forming wall and the connecting wall of the inner die split 2, meanwhile, the main shaft 31 and the connecting shaft 32 in the mandrel component are formed by welding seamless steel pipes with high strength, the dead weight is reduced to the maximum extent under the condition of ensuring the strength, the dead weight of the die structure is small, referring to fig. 5, through CAE analysis, the deflection deformation of the die is 1.17mm and is smaller than 1.5mm of the technical requirement, a certain tolerance space is reserved for the shrinkage deformation of the product, and the design requirement is met.
Because the assembling process of the split mold disclosed in the embodiment is more difficult than that of an integral mold, the split mold needs to be placed into a curing oven for heating and curing after the material emission box product is molded, the mold needs to be continuously rotated in the curing process, and the molding quality of the product is ensured, so that the mold is required to be firmly combined without relative displacement. Therefore, not only the inner mold segments 2 need to be fixed by the snap ring 33, but also the positioning members 5 need to be installed and positioned between two adjacent inner mold segments 2 to strengthen the combination between the inner mold segments 2 and the mandrel assembly, wherein the positioning members 5 are preferably dovetail groove positioning members, the dovetail groove positioning members comprise a first positioning portion 51 and a second positioning portion 52 which are fixedly connected, at least one dovetail groove is arranged between the first positioning portion 51 and the second positioning portion 52, the first positioning portion 51 is connected to one adjacent inner mold segment 2 in an embedded manner, and the second positioning portion 52 is connected to the other adjacent inner mold segment 2 in an embedded manner.
Preferably, the outer mold split 1 is provided with a glue outlet corresponding to a dead angle of glue flow, and the glue outlet is provided with an outer mold plug 11 to ensure complete infiltration of the fibers in the cavity 6. The position of the colloid flow dead angle is determined based on the structure of the cavity 6, and the specific positioning process is a conventional means in the field, so the details are not described in this embodiment.
Preferably, the outer wall of the end cover 4 corresponding to the glue inlet channel is provided with a glue inlet and the inner wall is provided with a glue outlet, a glue flow channel for communicating the glue inlet with the glue outlet is arranged in the end cover 4, the number of the glue inlets is at least one, the number of the glue outlets is multiple, and the glue outlets are uniformly distributed at the end part of the cavity 6. The implementation structure changes the point glue feeding mode into the surface glue feeding mode, can effectively improve the fluidity of the glue, improves the uniformity of the product, and reduces the phenomena of layering, cracks and bubbles of the product.
Preferably, the outer mold split 1 is provided with an air receiving hole 12, and the air receiving hole 12 is provided with a detachable sealing plug. The air receiving hole 12 is a threaded hole, the air receiving hole 12 is connected with an air pipe during demolding, compressed air of 0.15-0.3 MPa is introduced into the cavity 6, separation of a product and the outer mold split 1 is facilitated, and meanwhile the air receiving hole is used as an adhesive supplementing point in the molding process, so that the adhesive injecting efficiency and the molding quality are improved.
In this embodiment, sealing structures are respectively disposed between adjacent outer mold segments 1, between adjacent inner mold segments 2, between inner mold segments 2 and the mandrel assembly, between outer mold segments 1 and the end cover 4, and between the mandrel assembly and the end cover 4. Specifically, a rectangular sealing groove is arranged on a joint surface between adjacent outer mold segments 1, a silicone rubber sealing strip is placed in the rectangular sealing groove, the groove width is 9.7mm, the groove depth is 5.72mm, and the line diameter of the sealing strip is 7 mm; the joint surface between the outer mold split 1 and the end cover 4 is provided with an annular seal groove, the annular seal groove is designed on the end cover 4, a silicon rubber seal strip is placed in the groove, the groove width is 16mm, the groove depth is 7.5mm, and the seal strip is a square seal strip of 10 multiplied by 10 mm; a rectangular sealing groove is arranged on a joint surface between the adjacent inner mold segments 2, a silicon rubber sealing strip is placed in the rectangular sealing groove, the width of the groove is 9.7mm, the depth of the groove is 5.72mm, and the linear diameter of the sealing strip is 7 mm; a joint surface between the inner mold split 2 and the mandrel component is provided with an annular seal groove, the annular seal groove is designed on the mandrel, a silicon rubber seal strip is placed in the groove, the groove width is 16mm, the groove depth is 7.5mm, and the seal strip is a square seal strip of 10 multiplied by 10 mm; the joint surface between the mandrel component and the end cover 4 is provided with an annular sealing groove, the sealing groove is designed on the mandrel, a silicon rubber sealing strip is placed in the groove, the width of the groove is 5mm, the depth of the groove is 2.75mm, and the line diameter of the sealing strip is 3.55 mm.
Referring to fig. 6, the embodiment further discloses a composite material launching box molding system, which specifically includes a resin barrel 7, a glue storage tank 8, a vacuum pump 9 and the composite material launching box split mold; wherein, the resin barrel 7 is communicated with a glue inlet channel in the split die of the composite material launching box through a rubber tube, the glue storage tank 8 is communicated with a glue outlet channel in the split die of the composite material launching box, and the vacuum pump 9 is communicated with the glue storage tank 8 through an air tube. The working process is as follows: firstly, the vacuum pump 9 is used for pumping out and evacuating air in the die cavity 6, resin can slowly infiltrate the fiber yarns in the die cavity 6 through the resin barrel 7 due to the vacuum negative pressure in the die cavity 6, and when the resin is completely infiltrated, the discharged redundant resin is stored in the glue storage tank 8, the discharged resin can be repeatedly used, and the loss of raw materials is reduced.
The forming process of the composite material launching box forming system comprises the following specific steps:
step 1, according to the shape of a product to be formed, an inner mold assembly and a mandrel assembly are assembled to form an inner mold, and an outer mold assembly is used as an outer mold to form an RTM mold in order to ensure the accurate shape and size of the product; the mold is provided with a glue outlet from one axial end, and the middle flowing dead angle part is provided with a glue outlet discontinuously, so as to ensure that the fiber is completely infiltrated;
step 3, pouring the uniformly mixed resin into a resin barrel 7, standing and defoaming for 60min, and determining the constant temperature of the resin according to a resin system adhesion time test at different temperatures;
step 7, checking air tightness: the pressure of a die cavity is required to be less than-0.09 MPa within 10 minutes, and the pressure drop is not more than 0.005MPa within 5 minutes after the air exhaust pipe is closed;
step 9, continuing to vacuumize for 15-30min after glue liquid flows out of the rubber tubes at the glue outlet channel, so that the rubber tubes are provided with a certain amount of resin, and sealing the glue outlet;
step 10, curing and heating, wherein the heating process is as follows: and transferring the mold into a heating furnace, raising the furnace temperature of the heating furnace to 138-142 ℃ at the speed of 5 ℃/min, keeping the temperature for 115-125 minutes, raising the furnace temperature to 178-182 ℃ at the speed of 5 ℃/min, keeping the temperature for 235-245 minutes, cutting off the power, naturally cooling, discharging the mold when the furnace temperature is 30 ℃ lower than the ambient temperature, and opening the mold.
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 (10)
1. A split die for a composite material launching box is characterized by comprising an outer die assembly, an inner die assembly, a mandrel assembly and an end cover;
the inner mold assembly comprises a plurality of inner mold segments, each inner mold segment is sequentially connected to form the inner mold assembly with a cylindrical structure, and each inner mold segment is fixedly connected with the mandrel assembly;
the outer mold component comprises a plurality of outer mold segments, the outer mold segments are sequentially connected to form the outer mold component of a cylindrical structure, the outer mold component is sleeved on the inner mold component, and a cavity is formed between the outer mold component and the inner mold component;
the number of the end covers is two, one end cover is fixedly connected with one end of the outer die assembly and one end of the mandrel assembly, and the other end cover is fixedly connected with the other end of the outer die assembly and the other end of the mandrel assembly;
one end cover is provided with a glue inlet channel communicated with the cavity, and the other end cover is provided with a glue outlet channel communicated with the cavity.
2. The composite launch box split mold of claim 1 wherein a draft angle is provided between said mandrel assembly and said inner mold split.
3. The split mold for a composite material launching box as claimed in claim 1, wherein a draft angle is provided between two adjacent inner mold halves.
4. The split mold for a composite material launching box as claimed in claim 1, 2 or 3, wherein the mandrel assembly comprises a hollow main shaft and connecting shafts arranged at two ends of the main shaft and coaxial with the main shaft;
the connecting shaft is fixedly connected with the end cover, and a clamping ring is sleeved on the connecting shaft;
each inner mold split is fixedly connected with the main shaft, and the end part of each inner mold split is fixedly connected with the clamping ring of the corresponding end.
5. The split mold for a composite material launching box as claimed in claim 1, 2 or 3, wherein the adjacent two inner mold halves are installed and positioned by a positioning member.
6. The split mold for the composite material launching box as claimed in claim 1, 2 or 3, wherein a glue outlet is arranged on the outer mold split part at a position corresponding to a glue flowing dead angle, and an outer mold plug is arranged on the glue outlet.
7. The split mold for the composite material launching box according to claim 1, 2 or 3, wherein the outer wall of the end cover corresponding to the glue inlet channel is provided with a glue inlet, the inner wall of the end cover is provided with a glue outlet, a glue flow passage communicating the glue inlet and the glue outlet is arranged in the end cover, the number of the glue inlets is at least one, the number of the glue outlets is multiple, and the multiple glue outlets are uniformly distributed at the end part of the cavity.
8. The split mold for the composite material launching box as claimed in claim 1, 2 or 3, wherein the outer mold split is provided with an air receiving hole, and the air receiving hole is provided with a detachable sealing plug.
9. The composite material shooting box split mold according to claim 1, 2 or 3, wherein sealing structures are arranged between the adjacent outer mold split, between the adjacent inner mold split, between the inner mold split and the mandrel component, between the outer mold split and the end cover, and between the mandrel component and the end cover.
10. A composite material launch box molding system, comprising a resin barrel, a glue storage tank, a vacuum pump and the composite material launch box split mold of any one of claims 1 to 9;
the resin barrel is communicated with a glue inlet channel in the split die of the composite material launching box through a rubber pipe, the glue storage tank is communicated with a glue outlet channel in the split die of the composite material launching box, and the vacuum pump is communicated with the glue storage tank through an air pipe.
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| CN113172808A (en) * | 2021-04-30 | 2021-07-27 | 上海纳铁福传动系统有限公司 | Forming die of drum-shaped shaft tube and demoulding method thereof |
| CN113232333A (en) * | 2021-04-12 | 2021-08-10 | 上海复合材料科技有限公司 | Bearing cylinder body forming glue joint die |
| WO2023115828A1 (en) * | 2021-12-22 | 2023-06-29 | 西安鑫垚陶瓷复合材料有限公司 | Cylindrical structural member mold and method for preparing cylindrical structural member |
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| CN111421858A (en) * | 2020-05-18 | 2020-07-17 | 北京玻钢院复合材料有限公司 | Composite material launching box and preparation method thereof |
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| WO2023115828A1 (en) * | 2021-12-22 | 2023-06-29 | 西安鑫垚陶瓷复合材料有限公司 | Cylindrical structural member mold and method for preparing cylindrical structural member |
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| CN112318782B (en) | 2021-03-23 |
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