CN119502401B - Forming die and forming method for cylinder with grid ribs - Google Patents
Forming die and forming method for cylinder with grid ribsInfo
- Publication number
- CN119502401B CN119502401B CN202411441369.6A CN202411441369A CN119502401B CN 119502401 B CN119502401 B CN 119502401B CN 202411441369 A CN202411441369 A CN 202411441369A CN 119502401 B CN119502401 B CN 119502401B
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- China
- Prior art keywords
- ring
- male die
- die
- barrel
- cylinder
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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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
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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
- B29C70/54—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
本申请公开了一种带网格筋筒体的成型模具及成型方法，属于成型模具技术领域，成型模具包括：凸模组件，用于筒体制品的内侧支撑，包括芯筒和与其可拆卸连接的多个凸模环；两个连接芯筒的压环；凹模组件，用于筒体制品的外侧支撑，由多个凹模拼块拼接形成，凹模拼块与压环可拆卸连接，凹模拼块、凸模环和压环合围形成制造筒体制品的型腔；两个用于传递旋转扭矩的支撑转轴。成型方法包括：先将芯筒与凸模环安装，再缠绕材料，最后安装凹模拼块；加热、成型、冷却；先拆除凹模拼块；然后拆除芯筒，再取下凸模拼块。本申请有效降低了筒体制品从模具上脱模的难度，能够将材料从模具上顺利分离，保持了原有的结构，从而提高了制品质量，符合生产要求。
This application discloses a molding die and molding method for a cylindrical body with a grid rib, belonging to the field of molding die technology. The molding die includes: a punch assembly for inner support of the cylindrical product, including a core cylinder and multiple punch rings detachably connected to it; two pressure rings connecting the core cylinder; a die assembly for outer support of the cylindrical product, formed by assembling multiple die blocks, the die blocks being detachably connected to the pressure rings, the die blocks, punch rings, and pressure rings forming a cavity for manufacturing the cylindrical product; and two support shafts for transmitting rotational torque. The molding method includes: first installing the core cylinder and punch rings, then winding material, and finally installing the die blocks; heating, molding, and cooling; first removing the die blocks; then removing the core cylinder, and then removing the punch blocks. This application effectively reduces the difficulty of demolding the cylindrical product from the mold, enabling smooth separation of material from the mold while maintaining the original structure, thereby improving product quality and meeting production requirements.
Description
Technical Field
The application belongs to the technical field of forming dies, and particularly relates to a forming die and a forming method for a cylinder with grid ribs.
Background
The grid rib cylinder is a structural product with grid ribs on a cylinder structure, such as a built-in grid rib cylinder product made of a resin-based carbon fiber reinforced composite material, wherein the resin-based carbon fiber reinforced composite material needs to be solidified under certain temperature and pressure conditions, and the composite material product is obtained by demolding through a mold, so that the grid rib cylinder is a common molding method.
For large-size product molding, two methods are commonly used at present, one molding method is a hard die method, and a die made of a metal material is used for molding, and the method is suitable for a composite material product which is formed by co-curing by adopting a high-temperature pressurizing process system (the curing temperature of resin is 180 ℃ and above and the curing pressure of the resin is 0.4Mpa and above). Another molding method is a compound molding method, in which a silicone rubber soft membrane rib groove is fixed on a rigid hard mold (metal mold), the basic shape of a composite material product is ensured by the hard mold, and the silicone rubber soft membrane rib groove is used for winding and molding a grid rib by fiber prepreg wires.
The existing cylinder structure with grid ribs adopts the existing mould and method, so that the product has the problem of demoulding quality, on one hand, if a hard mould method is adopted, the cylinder product is difficult to demould, even if the cylinder product is demoulded, the structure is easy to damage, and on the other hand, if a composite mould is adopted, the size of the cylinder product is easy to deviate from the design value greatly in the rubber part of the mould. Thus, the demolding quality of the barrel product does not meet the production requirement.
Disclosure of Invention
The application aims to solve the technical problem of demolding quality of the cylinder with the grid ribs at least to a certain extent, and therefore, the application provides the forming die and the forming method of the cylinder with the grid ribs, which effectively reduce the difficulty in demolding a cylinder product from the die, can smoothly separate materials from the die, and maintains the original structure, thereby improving the product quality and meeting the production requirements.
In a first aspect, an embodiment of the present application provides a forming mold for a barrel with grid ribs, for manufacturing a barrel product, wherein an inner side of the barrel product is provided with annular ribs and longitudinal ribs which are mutually intersected, and the forming mold comprises:
The male die assembly comprises a core barrel and a plurality of male die rings, the ends of the male die rings are spliced in sequence to form a cylindrical structure for supporting the inner side of a cylindrical product, the cylindrical structure is attached to the outer wall of the core barrel, the male die rings are annular structures formed by splicing a plurality of male die splicing blocks along the circumferential direction, the male die splicing blocks are detachably connected with the core barrel, and the male die splicing blocks are made of metal materials;
the two compression rings are respectively connected to the two ends of the core barrel and made of metal materials;
The female die assembly is sleeved on the periphery of the cylindrical structure and used for supporting the outer side of the cylindrical product, the female die assembly is formed by splicing a plurality of female die splice blocks along the circumferential direction of the annular structure, two ends of each female die splice block are respectively detachably connected with corresponding compression rings, each compression ring is made of metal materials, and a cavity for manufacturing the cylindrical product is formed by encircling the plurality of female die splice blocks, the plurality of male die rings and the two compression rings;
The two support rotating shafts are detachably connected to two ends of the core barrel respectively and are connected with the compression ring shaft sleeve, and the support rotating shafts are used for supporting the core barrel and transmitting rotating torque around the axis.
In an alternative embodiment, the male die splice is provided with at least one half of circumferential groove, the half of circumferential groove is positioned at the end part of the male die splice and is arranged along the circumferential direction of the male die, the half of circumferential grooves of adjacent male die splice are spliced and combined into one circumferential groove, and the circumferential grooves are arranged along the two sides of the male die splice and are used for forming intervals for manufacturing the annular ribs.
In an alternative embodiment, the number of circumferential grooves is one half, with one circumferential groove (120 b) between the ends of the male die segments.
In an alternative embodiment, the male die segment is further provided with longitudinal grooves, at least two longitudinal grooves being provided, the longitudinal grooves being provided along the direction of the two ends of the male die segment for forming the space for manufacturing the longitudinal ribs.
In an alternative embodiment, a circumferential groove is formed at the butt joint position of the male die splice blocks of adjacent male die rings, or the butt joint positions are flush, and the longitudinal grooves of a plurality of male die splice blocks corresponding to the same position of all the male die rings are positioned on the same straight line.
In an alternative embodiment, the male mold segments comprise a plurality of first male mold segments and a plurality of second male mold segments, the plurality of first male mold segments and the plurality of second male mold segments being alternately spliced to form a ring-shaped structure.
In an alternative embodiment, both sides of the first male die segment are provided with acute angled inclined planes forming an angle α with the outer wall of the core barrel, and both sides of the second male die segment are provided with obtuse angled inclined planes forming an angle β with the outer wall of the core barrel, wherein α+β=180°.
In an alternative embodiment, the core barrel comprises a barrel body, a first barrel ring and a second barrel ring, wherein the first barrel ring and the second barrel ring are respectively connected to two ends of the barrel body, the barrel body and the male die rings are detachably connected, and the first barrel ring and the second barrel ring are respectively detachably connected with the corresponding compression ring and the corresponding support rotating shaft.
In an alternative embodiment, the cylinder, the first male die block, the second male die block, the first cylinder ring, the second cylinder ring, the compression ring, the female die block and the supporting shaft are respectively provided with a positioning hole and a positioning piece, the positioning piece is matched with the corresponding positioning hole, the positioning piece and the corresponding positioning hole are respectively used for positioning between the cylinder and the first male die block and between the second male die block, between the first cylinder ring and the second cylinder ring and between the corresponding compression ring, between the compression ring and the female die block, and between the supporting shaft and the first cylinder ring and the second cylinder ring.
In an alternative embodiment, the cylinder, the first male die block, the second male die block, the first cylinder ring, the second cylinder ring, the pressing ring, the female die block and the supporting shaft are respectively provided with a connecting hole and a connecting piece, the connecting piece is connected with the corresponding connecting hole, the connecting piece and the corresponding connecting hole are respectively used for connecting the cylinder with the first male die block and the second male die block, the first cylinder ring, the second cylinder ring and the corresponding pressing ring, the pressing ring is connected with the female die block, and the supporting shaft is connected with the first cylinder ring and the second cylinder ring.
In an alternative embodiment, the female die segments are crisscrossed with female die longitudinal ribs and female die circumferential ribs.
In an alternative embodiment, the support shaft comprises a shaft, a flange, a positioning ring and a rib plate, wherein the flange is connected to the shaft, the positioning ring is attached to the flange, and the rib plate is connected to the flange and the shaft.
In a second aspect, an embodiment of the present application provides a molding method, which uses the above molding mold for a cylinder with grid ribs, including:
firstly, mounting a core barrel and male die rings, mounting a supporting rotating shaft, winding materials of barrel products on the outer sides of all male die rings, mounting a compression ring, and finally mounting female die blocks;
sending the molding die into a heating and pressurizing device, coating a vacuum film, vacuumizing, heating and pressurizing again, and cooling after the barrel product is molded;
Firstly, removing the female die splicing blocks from the outer side of the cylindrical product, and then removing the compression ring and the supporting rotating shaft from the two sides of the cylindrical product;
the core barrel is then removed from the inside of the barrel product and the male die segments are removed from the inside of the barrel product.
In an alternative embodiment, in the case that the male die assembly is provided with a circumferential groove and a longitudinal groove, the specific steps before the formation of the cylindrical product include:
Firstly, installing a plurality of male die rings on a core barrel, and then connecting two supporting rotating shafts at two ends of the core barrel;
Winding the material of the cylindrical product in the longitudinal groove and the circumferential groove respectively until the longitudinal groove and the circumferential groove are filled;
The wound material is compacted by absorbing glue, and a skin is wound on the outer sides of all male die rings;
Mounting compression rings at two ends of the core barrel, and sucking and compacting glue;
installing female die splicing blocks, and sealing the material of the cylindrical product in a die cavity;
and heating the forming die until forming.
In an alternative embodiment, the molding method is used for molding a resin-based fiber reinforced composite material, and the material of the adopted barrel product is the resin-based fiber reinforced composite material.
According to the technical scheme, the beneficial effects of the application are as follows:
1. According to the die disclosed by the application, the installation basis of the male die rings is provided through the core barrel, the split type structure which is convenient to detach can be formed outside the core barrel through the combination and the splicing of the male die rings, the die profile is provided on the inner side of the barrel product, the core barrel is used as the connection basis of the supporting rotating shaft, the pressing ring is sleeved on the supporting rotating shaft and connected with the core barrel, the die assembly is formed through the combination and the splicing of the female die blocks, the die profile can be provided on the outer side of the barrel product, meanwhile, the male die blocks, the pressing ring and the female die blocks are made of metal materials, so that the cavity of the barrel product is formed through the female die blocks, the male die blocks and the pressing ring, the molded barrel product can have stronger constraint on the appearance of the barrel product, the molded barrel product can have the same size as the designed appearance, the barrel product can be detachably connected through the male die blocks and the female die blocks, and the barrel product can be detached outside the barrel product to form a plurality of detachable structures, the whole molding die can be detached from the barrel product after the barrel product is molded, the difficulty is effectively reduced, the demolding material can be smoothly separated from the die, the original production requirement is met, and the quality of the product can be smoothly kept, and the product quality is improved.
2. According to the method, the outer side of the cylindrical product can be exposed by removing the female die splice blocks from the outer side of the cylindrical product, the inner core barrel of the cylindrical product is removed, the remaining dies are of detachable structures, the male die splice blocks are only stuck to the inner side of the cylindrical product, the acting force of the male die splice blocks at the positions of the male die splice blocks and ribs of the cylindrical product is limited, or no acting force exists, so that the male die splice blocks can be removed, the difficulty in demolding the cylindrical product from the dies is effectively reduced, and materials can be smoothly separated from the dies.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are some embodiments of the present application, and other embodiments and drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic representation of an embodiment of a cartridge article of the present invention;
FIG. 2 shows a schematic view of an embodiment of the molding die of the present invention;
FIG. 3 shows an enlarged schematic view of A in FIG. 2;
FIG. 4 shows a schematic representation of an embodiment of the pressure ring of the present invention;
Figure 5 shows a partial cross-sectional view of an embodiment of the punch assembly of the present invention;
FIG. 6 shows an enlarged schematic view of B in FIG. 5;
figure 7 shows a schematic representation of an embodiment of the male mold ring of the present invention;
figure 8 shows a schematic representation of an embodiment of the male mold ring of the present invention;
Figure 9 shows a schematic representation of an embodiment of the first male die segment of the present invention;
Figure 10 shows a schematic representation of an embodiment of a second male die segment of the present invention;
figure 11 shows a schematic representation of an embodiment of the first male die segment of the present invention;
figure 12 shows a schematic representation of an embodiment of a second male die segment of the present invention;
FIG. 13 shows a schematic representation of an embodiment of the cartridge of the present invention;
FIG. 14 shows an enlarged schematic view of C in FIG. 13;
Figure 15 shows a schematic view of an embodiment of the die assembly of the present invention;
FIG. 16 shows a schematic view of an embodiment of a female die segment of the present invention;
FIG. 17 shows a schematic view of an embodiment of a female die segment of the present invention;
FIG. 18 shows a schematic view of an embodiment of the support shaft of the present invention;
FIG. 19 shows a schematic view of an embodiment of the support shaft of the present invention;
Reference numerals 100, punch assembly, 110, core barrel, 111, barrel, 111a, sidewall positioning hole, 111b, sidewall connecting hole, 112, first barrel ring, 112a, barrel ring positioning hole, 112b, barrel ring connecting hole, 113, second barrel ring, 113a, inner ring hole, 113b, outer ring hole, 120, punch ring, 120a, longitudinal groove, 120b, annular groove, 121, first punch segment, 121a, acute angled oblique plane, 121b, punch positioning hole, 121c, punch connecting hole, 122, second punch segment, 122a, obtuse angled oblique plane, 200, press ring, 210, outer positioning hole, 220, outer connecting hole, 230, press ring positioning hole, 240, press ring connecting hole, 300, female die assembly, 310, female die segment, 311, female die connecting hole, 312, female die positioning hole, 320, female die longitudinal stiffener, 330, female die annular stiffener, 400, support shaft, 410, shaft, 420, flange plate, 421, flange positioning hole, 422, flange connecting hole, 430, 440, flange ring, 500, annular rib, and barrel body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all the directional indicators in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.
In the present invention, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The application is described below with reference to specific embodiments in conjunction with the accompanying drawings:
Referring to fig. 1 and 2, in a first aspect of the present application, a forming mold is provided for manufacturing a large-sized cylindrical product 500, wherein the large-sized cylindrical product is a cylindrical product with a length and a diameter of 1.5m or more, and the cylindrical product 500 is made of a resin-based carbon fiber reinforced composite material, or other materials that are convenient for winding. The cylindrical product 500 is cylindrical, the inner side of the cylindrical product 500 is provided with the annular ribs 510 and the longitudinal ribs 520 which are mutually intersected, the annular ribs 510 and the longitudinal ribs 520 can be arranged in a mutually perpendicular mode, the outer side of the cylindrical product 500 is a smooth surface, and the demolding problem mainly lies in demolding of the inner side of the cylindrical product 500. The forming die comprises a male die assembly 100, two compression rings 200, a female die assembly 300 and two support rotating shafts 400, wherein the male die assembly 100, the compression rings 200, the female die assembly 300 and the support rotating shafts 400 are all made of metal materials, when in forming, the male die assembly 100 is positioned at the inner side of a barrel product 500, the compression rings 200 are positioned at two ends of the barrel product 500, the compression rings 200 are in ring shapes, the female die assembly 300 is positioned at the outer side of the barrel product 500, and the support rotating shafts 400 are connected with a core barrel 110. The male die assembly 100 comprises a core barrel 110 and a plurality of male die rings 120, the core barrel 110 is hollow and cylindrical, two compression rings 200 are annular and are respectively connected to two ends of the core barrel 110, corresponding holes are respectively formed in two ends of the compression rings 200 and the core barrel 110, the compression rings 200 and the core barrel 110 can be detachably connected by using screws, bolts and the like, two support rotating shafts 400 are also provided with corresponding holes with the core barrel 110, the support rotating shafts 400 and the core barrel 110 are detachably connected by using screws, bolts and the like, the support rotating shafts 400 are in shaft sleeve connection with the compression rings 200, the support rotating shafts 400 are used for supporting the core barrel 110 and transmitting rotation torque around an axis, and the two support rotating shafts 400 can be connected to a driving device such as a winding machine and the like, so that the female die assembly 300 and the male die assembly 100 can be driven to rotate together by the support rotating shafts 400.
Referring to fig. 2 and 3, the core barrel 110 is a cylindrical barrel, the core barrel 110 is a hollow annular barrel, the outer side surfaces of the core barrel 110 are cylindrical surfaces, the male die rings 120 are sleeved on the outer side surfaces of the core barrel 110, each male die ring 120 is annular, the ends of the male die rings 120 are sequentially spliced to form a cylindrical structure, namely, the male die rings 120 can be spliced at the ends to form an integral structure, the male die rings 120 serve as an inner side surface for supporting the inner side of the barrel product 500, namely, the outer sides of the male die rings 120 are supported at the inner side of the barrel product 500 during molding of the barrel product 500, the cylindrical structure is attached to the outer wall of the core barrel 110, the opposite outer end surfaces of the male die rings 120 at the two ends of the core barrel 110 are respectively provided with circular step surfaces, the circular step surfaces are used for molding the two ends of the barrel product 500 in a molding process, so that the barrel product 500 is provided with two end frames, namely, each male die ring 120 is an annular structure formed by splicing a plurality of male die splicing blocks along the circumferential direction, namely, each male die ring 120 can be spliced by a plurality of male die splicing blocks, the male die splicing blocks can be detachably connected with the core barrel 110, and the male die ring 120 can be detachably connected with the corresponding positions of the barrel product 500 through bolts or bolts 110. The female die assembly 300 is sleeved on the periphery of the cylindrical structure, namely, the female die assembly 300 is located on the outer side of the cylindrical product 500, the female die assembly 300 is used as an outer side molded surface and used for supporting the outer side of the cylindrical product 500, the female die assembly 300 is formed by splicing a plurality of female die spliced blocks 310 along the circumferential direction of the annular structure, a cavity is formed between the female die spliced blocks 310 and the male die spliced blocks, the cylindrical product 500 is filled in the cavity, two ends of the female die spliced blocks 310 are respectively detachably connected with corresponding compression rings 200, referring to fig. 4, holes are correspondingly formed at two ends of the female die spliced blocks 310 and the compression rings 200, bolts or screws can be used for connecting the female die spliced blocks 310 with the compression rings 200 through the holes, a plurality of female die spliced blocks 310, a plurality of male die rings 120 and two compression rings 200 are encircled to form a cavity for manufacturing the cylindrical product 500, and the cylindrical product 500 can be molded by utilizing the cavity, so that the cylindrical product is easy to demould, the product quality consistency is good, and the product precision is higher.
In the prior art, the demolding quality problem of the barrel product 500 exists during demolding, and the quality of the demolded product cannot meet the requirement. The mold is characterized in that the mold is made of a plastic material, the expansion coefficient of the mold is smaller than that of a common metal material after the product is solidified, the shrinkage of the mold is different from that of the mold in a cooling stage after high-temperature solidification, so that interaction force is generated between the annular groove molded surfaces of a plurality of metal convex molds and a plurality of annular ribs of the product, the product is difficult to demold, the annular ribs of the product are easily damaged even if the mold is demolded, and on the other hand, the mold is made of a soft material such as silicone rubber locally by the conventional compound mold, and the molded product is not satisfactory in quality and has aging loss in the repeated use process due to the fact that the silicone rubber has high elasticity, the restraining force of the silicone rubber on the cylindrical product 500 is insufficient.
The application provides a mounting foundation of a plurality of male die rings 120 through the core barrel 110, a split type structure which is convenient to detach can be arranged outside the core barrel 110 through the combination and the splicing of the plurality of male die rings 120, a die profile can be provided on the inner side of the barrel product 500, the compression ring 200 is sleeved on the supporting rotating shaft 400 and connected with the core barrel 110 through the core barrel 110 as a connecting foundation of the supporting rotating shaft 400, the die assembly 300 is formed through the combination and the splicing of the plurality of female die blocks 310, the die profile can be provided on the outer side of the barrel product 500, meanwhile, as the male die blocks, the compression ring 200 and the female die blocks 310 are made of metal materials, the die cavity of the barrel product 500 can be formed through the female die blocks 310, the male die blocks and the compression ring 200, the shape of the barrel product 500 can be restrained strongly, the barrel product 500 can be molded under the technological conditions, the barrel product 500 after molding can have the same size as the designed shape, the barrel product 500 can be disassembled through the detachable connection of the male die blocks and the compression ring 200, a plurality of detachable structures can be formed on the outer side of the barrel product 500, the whole barrel product can be removed from the die and the die can be removed from the die, the die can be removed from the die and the die can be removed from the die product effectively, the die can be manufactured, the original quality can be easily and the product can be easily kept, and the quality can be in accordance with the requirements and can be manufactured.
Referring to fig. 5, 6, 7 and 8, in an alternative embodiment, a longitudinal groove 120a and a circumferential groove 120b are formed in a male die assembly, the longitudinal groove 120a is provided with at least two, such as two, three and the like, longitudinal grooves 120a are arranged along the two ends of the male die assembly for forming the interval for manufacturing the longitudinal ribs 520, the circumferential groove 120b is provided with at least one half, such as one half, two halves, three halves and the like, preferably one half, the half circumferential grooves 120b are located at the end of the male die assembly and are circumferentially arranged along the male die ring 120, the half circumferential grooves 120b of adjacent male die assemblies are spliced and combined into one circumferential groove 120b, by adopting the design, when expansion difference is generated between the male die assembly and the cylindrical product 500, the male die assembly can be separated from the cylindrical product 500 by interaction, the axial problem of a plurality of circumferential grooves 120b of the integral rigid die and the plurality of the cured cylindrical product 500 is solved, the circumferential grooves 120b are arranged along the two sides of the male die assembly for forming the annular ribs, the annular grooves 120b are arranged along the two sides of the male die assembly, and the circumferential grooves 120b are arranged along the same as the longitudinal grooves 120b, and the circumferential grooves 120b are formed along the same as the radial grooves 120b, and the radial grooves 120b are also arranged along the radial grooves 120b, and the radial grooves are perpendicular to the radial grooves 120b are formed along the radial grooves. In an alternative embodiment, the male mold ring 120 includes a first male mold ring 120, a second male mold ring 120, a third male mold ring 120, and a fourth male mold ring 120, where the first male mold ring 120 and the fourth male mold ring 120 are respectively located at two ends of the entire core barrel 110, and the second male mold ring 120 and the third male mold ring 120 are located at a middle portion, so that the male mold assembly 100 is formed by combining a plurality of male mold rings 120. In an alternative embodiment, one circumferential groove 120b is formed at the butt joint of the male mold segments of the adjacent male mold segments 120, or the butt joint is flush, that is, in the axial direction of the tubular structure, in the adjacent male mold segments 120 of the plurality of male mold segments 120, the male mold segments correspond to the positions of the adjacent male mold segments, the butt joint of the adjacent male mold segments is provided with half of the circumferential groove 120b, one circumferential groove 120b is formed after the butt joint of the adjacent male mold segments, and another butt joint mode is also provided, that is, the butt joint of the adjacent male mold segments is flush, and the butt joint of the adjacent male mold segments is seamless, so that a plurality of circumferential grooves 120b can be formed after the butt joint of the plurality of male mold segments 120, wherein the end faces of the male mold segments at the two ends of the male mold segments 120 are respectively used for end frame molding of the tubular product 500, the longitudinal grooves 120a of the plurality of male mold segments corresponding to the same position of all male mold segments 120 are located on the same straight line, and the positions of the longitudinal grooves 120a corresponding to each other male mold segment are located.
Referring to fig. 9 and 10, in an alternative embodiment, the male mold segments include a plurality of first male mold segments 121 and a plurality of second male mold segments 122, where the plurality of first male mold segments 121 and the plurality of second male mold segments 122 are alternately spliced to form an annular structure, that is, in the same position of the male mold ring 120, the first male mold segments 121 and the second male mold segments 122 are set as a group, and multiple groups are adjacently arranged around each other, and in the whole annular structure, the first male mold segments 121 and the second male mold segments 122 are alternately arranged, and the annular structure is a male mold ring 120, and each male mold ring 120 has the same structure, and is formed by adopting a splicing manner of the first male mold segments 121 and the second male mold segments 122, where two ends of the first male mold segments 121 and the second male mold segments 122 are respectively at two ends of the male mold assembly 100 or at the butt joint positions of adjacent male mold rings 120, and two sides of the first male mold segments 121 and the second male mold segments 122 are respectively used as splicing positions for the alternate splicing. In an alternative embodiment, two sides of the first male die segment 121 are provided with acute inclined planes 121a, an angle α is formed between the acute inclined planes 121a and the outer wall of the core barrel 110, two sides of the second male die segment 122 are provided with obtuse inclined planes 122a, an angle β is formed between the obtuse inclined planes 122a and the outer wall of the core barrel 110, wherein α+β=180°, and in the above manner, seamless splicing can be formed after the first male die segment 121 and the second male die segment 122 are spliced, so that the male die ring 120 is formed by splicing the plurality of first male die segments 121 and the second male die segment 122. Meanwhile, at the grid rib of the cylindrical product 500, the first male die splicing block 121 and the second male die splicing block 122 are used as the inner side molded surface of the cylindrical product 500, so that the cylindrical product 500 is convenient to disassemble, and meanwhile, a soft die is not used, so that the problem of soft die loss is avoided.
Referring to fig. 11 and 12, the first male die segment 121 and the second male die segment 122 are integrally six-sided, the outer side and the inner side of the first male die segment 121 and the second male die segment 122 are both circular arc surfaces, the outer side is used for supporting the inner wall of the cylindrical product 500, the inner side is supported by the outer wall of the core barrel 110, the longitudinal groove 120a and the circumferential groove 120b are both formed by concavely arranging the outer side of the first male die segment 121 and the outer side of the second male die segment 122, the longitudinal groove 120a extends from one end to the other end of the first male die segment 121 and the second male die segment 122, the circumferential groove 120b is arranged outside the first male die segment 121 and the second male die segment 122 along the circumferential direction of the male die ring 120, the plurality of first male die segments 121 and the plurality of second male die segments 122 are spliced to form an annular structure, the circumferential grooves 120b are positioned on the same circumference, and the end surfaces of one end of the first male die segment 121 and one end of the second male die segment 122 are half circumferential grooves 120b or flush, so that adjacent two end portions of the adjacent male die segments 121 and one end segment 122 are spliced together along the same circumference.
Referring to fig. 13, in an alternative embodiment, the core barrel 110 includes a barrel 111, a first barrel ring 112 and a second barrel ring 113, where the first barrel ring 112 and the second barrel ring 113 are respectively connected to two ends of the barrel 111, the barrel 111 and the plurality of male die rings 120 are detachably connected, the first barrel ring 112 and the second barrel ring 113 are respectively detachably connected to the corresponding compression ring 200 and the support shaft 400, the barrel 111 is in a hollow barrel shape, the outer side and the inner side of the barrel 111 are cylindrical surfaces, the first barrel ring 112 and the second barrel ring 113 are respectively located at two ends of the barrel 111, the outer diameters of the first barrel ring 112 and the second barrel ring 113 are equal to the outer diameter of the barrel 111, the inner diameters of the first barrel ring 112 and the second barrel ring 113 are smaller than the inner diameter of the barrel 111, the first barrel ring 112 and the second barrel ring 113 are in an integrated structure, and the first barrel ring 112 and the second barrel ring 113 are arranged so as to be convenient to be detachably connected to the corresponding compression ring 200 and the support shaft 400, and the corresponding compression ring 400 are detachably connected to the corresponding compression ring 200 and the support shaft 400 by bolts or bolts. The first barrel ring 112 and the second barrel ring 113 are provided with two circles of holes along the circumference, each circle of holes comprises a positioning hole and a connecting hole, the inner circle of holes 113a is close to the inner side of the ring, the outer circle of holes 113b is close to the outer side of the ring, the inner circle of holes 113a correspondingly positions and connects with the supporting rotating shaft, such as the flange positioning holes 421 and the connecting flange connecting holes 422, the outer circle of holes 113b correspondingly positions and connects with the pressing ring, such as the pressing ring positioning holes 230 and the connecting holes 240, and the supporting rotating shaft 400 and the pressing ring 200 can be simultaneously positioned and fixed through the first barrel ring 112 and the second barrel ring 113.
Referring to fig. 9, 10 and 14, in an alternative embodiment, the cylinder 111, the first male die block 121, the second male die block 122, the first cylinder ring 112, the second cylinder ring 113, the compression ring 200, the female die block 310 and the supporting shaft are respectively provided with a positioning member, a positioning hole, a connecting member and a connecting hole, the positioning member is matched with the corresponding positioning hole, the positioning hole is used for penetrating the positioning member, the connecting member penetrates the corresponding connecting hole to realize detachable connection, and the connecting member can adopt bolts to realize detachable connection of the above parts through the bolts. The positioning holes and the connecting holes are respectively used for positioning and connecting the cylinder 111 with the first male die splicing block 121 and the second male die splicing block 122, the positioning holes of the cylinder 111 correspond to the positioning holes of the first male die splicing block 121 and the second male die splicing block 122, after penetrating into the positioning pieces, bolts penetrate into the corresponding connecting holes, the first male die splicing block 121 and the second male die splicing block 122 are fixed outside the cylinder 111, the positioning holes and the connecting holes are respectively used for positioning and connecting the first cylinder ring 112, the second cylinder ring 113 and the corresponding compression ring 200, the positioning holes of the first cylinder ring 112 and the second cylinder ring 113 correspond to the positioning holes of the corresponding compression ring 200, after penetrating into the positioning pieces, bolts penetrate into the corresponding connecting holes, the first cylinder ring 112 is connected with the compression ring 200, the second cylinder ring 113 is connected with the compression ring 200, after penetrating into the corresponding connecting holes of the two compression ring 310, the positioning holes of the two compression ring 200 correspond to the positioning holes of the two compression ring 310 respectively, after penetrating into the corresponding connecting holes of the two compression ring 310, and the corresponding support cylinder ring 113 are respectively connected with the two ends of the compression ring 400, and the rotating shaft respectively, or the connecting the two support cylinder ring 113 and the corresponding positioning ring 112 are connected with the rotating shaft respectively. In the above-mentioned connecting holes, the connecting holes of the first male die assembly 121, the second male die assembly 122 and the cylinder 111 are kidney-shaped holes, and the kidney-shaped holes are designed to provide a certain relative adjustment range between the components, so that the die and the cylinder product 500 can be adjusted in an adaptive manner, while in the other connecting holes, the male die connecting hole 121c, the outer circle connecting hole 220 of the compression ring 200 and the cylinder ring connecting hole 112b are threaded holes for connecting screws (bolts).
Referring to fig. 9, 10 and 14, the positioning holes and the connecting holes are specifically configured such that the cylinder 111 is provided with a sidewall positioning hole 111a for positioning and a sidewall connecting hole 111b for connecting, the first punch block 121 and the second punch block 122 are respectively provided with a punch positioning hole 121b and a punch connecting hole 121c, the punch positioning hole 121b corresponds to the sidewall positioning hole 111a, the punch connecting hole 121c corresponds to the sidewall connecting hole 111b, wherein the sidewall positioning hole 111a and the sidewall connecting hole 111b are adjacent in position and are marked as a group, multiple groups of sidewall positioning holes 111a and sidewall connecting holes 111b are formed along the circumferential direction of the cylinder 111, for example, 8 groups form a circle, and multiple circles are arranged at intervals along the directions of two ends of the cylinder 111. The first cylindrical ring 112 and the second cylindrical ring 113 are provided with two kinds of holes, namely, a cylindrical ring positioning hole 112a and a cylindrical ring connecting hole 112b, namely, the two kinds of holes are formed on the inner side and the outer side of the first cylindrical ring 112 and the second cylindrical ring 113, the press ring 200 is provided with a press ring positioning hole 230 and a press ring connecting hole 240 penetrating through the two sides, the cylindrical ring positioning hole 112a on the outer side of the ring corresponds to the press ring positioning hole 230, the cylindrical ring positioning holes 112a corresponding to each press ring 200 are 2, the cylindrical ring connecting holes 112b correspond to the press ring connecting holes 240, the cylindrical ring positioning holes 112a on the inner side of the ring correspond to the flange positioning holes 421, the cylindrical ring positioning holes 112a corresponding to each support rotating shaft 400 are also 2, and the cylindrical ring connecting holes 112b on the inner side of the ring correspond to the flange connecting holes 422. The press ring 200 is further provided with radial outer circle positioning holes 210 and outer circle connecting holes 220, two ends of each female die splicing block 310 are respectively provided with a female die connecting hole 311 and a female die positioning hole 312, two female die connecting holes 311 are positioned on two sides of each female die positioning hole 312, the female die positioning holes 312 correspond to the outer circle positioning holes 210, the female die connecting holes 311 correspond to the outer circle connecting holes 220, the press ring 200 is provided with corresponding press ring positioning holes 230 and press ring connecting holes 240 which are respectively arranged as a pair, the outer circle positioning holes 210 and the outer circle connecting holes 220 surround the press ring 200 for a circle, a plurality of groups are arranged, and the outer circle positioning holes 210 and the outer circle connecting holes 220 of each group correspond to the female die positioning holes 312 and the female die connecting holes 311 of the end parts of the female die splicing blocks 310 respectively.
Referring to fig. 15, 16 and 17, in an alternative embodiment, a plurality of female mold segments 310 are disposed on the outer side of each female mold segment 310 in a crisscross manner, and a plurality of female mold longitudinal reinforcing ribs 320 and female mold circumferential reinforcing ribs 330 are disposed on each female mold segment 310, two sides of the female mold segments 310 are sequentially adjacent to each other to form a ring shape, the number of the female mold segments 310 is equal to or greater than 4, the six sides of each female mold segment 310 are arc-shaped, the outer side and the inner side of each female mold segment 310 are arc-shaped, the outer side of each female mold segment 310 is provided with a female mold longitudinal reinforcing rib 320 and a female mold circumferential reinforcing rib 330, the inner side of each female mold segment 310 is a light surface, the inner side of each female mold segment 310 is used for being tightly attached to the outer side surface of the cylindrical product 500, the female mold longitudinal reinforcing ribs 320 are disposed along two end directions of each female mold segment 310, the female mold circumferential reinforcing ribs 330 are disposed along the arc-shaped surfaces, and the female mold longitudinal reinforcing ribs 320 are perpendicular to the female mold circumferential reinforcing ribs 330.
Referring to fig. 3, 18 and 19, in an alternative embodiment, the supporting shaft 400 includes a shaft 410, a flange 420, a positioning ring 440 and a rib plate 430, the flange 420 is connected to the shaft 410, the positioning ring 440 is attached to the flange 420, the positioning ring 440 forms a circular step surface on a side surface of the flange 420, the rib plate 430 is connected to the flange 420 and the shaft 410, the flange 420 has a hollow hole, the shaft 410, the flange 420, the positioning ring 440 and the rib plate 430 can be fixed by welding, one end of the shaft 410 is connected to the middle of the flange 420, the other end of the shaft 410 is used for connecting a driving device, the positioning ring 440 protrudes from the surface of the flange 420 and is located at two sides of the flange 420 with the shaft 410, the rib plate 430 is located at one side of the flange 420 facing the shaft 410, one side of the rib plate 430 is vertically connected to the flange 420, and the other side of the rib plate 430 is vertically connected to the outer side of the shaft 410, when the flange 420 is connected to the flange 200, the flange 420 is connected to the inner side of the pressure ring 200 by a shaft sleeve connection, the outer diameter of the flange 420 is matched with the inner diameter of the pressure ring 200, and the positioning ring 440 is arranged on the inner side of the annular ring 113 of the first ring 112 and the second ring 112. The flange 420 is provided with a plurality of flange positioning holes 421 and flange connecting holes 422 which are arranged at intervals and surround the outer side of the positioning ring 440, the positioning holes and the connecting holes are the same as the positioning holes and the connecting holes, wherein the flange positioning holes 421 correspond to the barrel ring positioning holes 112a belonging to the inner ring holes 113a, the flange connecting holes 422 correspond to the barrel ring connecting holes 112b belonging to the inner ring holes 113a, the second barrel rings 113 are also arranged in the same way, the positioning holes are used for positioning, and then bolts are used for penetrating through the corresponding connecting holes to connect the support rotating shaft 400 to the first barrel rings 112 and the second barrel rings 113 at the two ends.
In an alternative embodiment, the male die assembly, the compression ring 200 and the female die assembly 310 are all made of common carbon steel, the supporting shaft 400 can also be made of common carbon steel, the materials can also be made of hard metal alloy, for example, alloy steel, the selection range is more, the manufacturing cost of the die can be effectively reduced by selecting materials with low cost, the whole die has stronger structural strength and difficult deformation, and stronger supporting force can be provided at the outer side of the cylindrical product 500 in the forming of the cylindrical product 500, so that the structure of the cylindrical product 500 is maintained.
Referring to fig. 2, in a second aspect of the present application, a molding method is provided for manufacturing a cylindrical product 500 by using the molding die, where the molding method is used for molding a resin-based fiber reinforced composite material, and the material of the cylindrical product is a resin-based fiber reinforced composite material, such as a resin-based carbon fiber reinforced composite material. The molding method comprises the following steps:
The core barrel 110 and the male mold rings 120 are firstly installed to assemble the male mold assembly 100, specifically, a plurality of male mold rings 120 are installed on the core barrel 110, each male mold ring 120 is installed by connecting a first male mold assembly block 121 and a second male mold assembly block 122 with the barrel 111, and then two support rotating shafts 400 are connected to two ends of the core barrel 110 and are fixed by adopting screws or bolts. Then, the two supporting shafts 400 of the mold are respectively clamped by a winding machine to horizontally support the mold, the material of the cylindrical product 500 is wound on the outer sides of all the male mold rings 120, the material of the cylindrical product 500 is respectively wound in the longitudinal grooves 120a and the circumferential grooves 120b, for example, the carbon fiber prepreg filaments are wound in sequence, each longitudinal groove 120a is wound, each circumferential groove 120b is wound, so that the winding cycle is adopted, and in the winding process, the carbon fiber prepreg filaments are uniformly scattered and attached to the two end surfaces of the male mold assembly 100 after being folded at the two ends of the male mold assembly 100 until the longitudinal grooves 120a and the circumferential grooves 120b are fully wound with the carbon fiber prepreg filaments, and the two ends are folded to the end surfaces of the male mold rings 120.
And then carrying out glue absorption compaction treatment on the wound carbon fiber prepreg filaments, winding carbon fiber prepreg skins on the surfaces of the material and the male die assembly 100 after the glue absorption compaction treatment until the thickness of the skins reaches the required thickness, and attaching the carbon fiber skins to the left and right ends of the male die assembly 100 after the carbon fiber skins are folded at the two ends of the male die assembly 100. Compression rings 200 are then installed at both ends of core barrel 110, and glue is absorbed and compacted. Finally, the female die segments 310 are installed, and both ends of the plurality of female die segments 310 are connected to the corresponding compression rings 200, thus closing the manufactured material inside the female die assembly 300.
The male die segments are positioned with the cartridge ring by the locating pins and are connected by screws (bolts) during the winding phase. However, before the vacuum is applied, the positioning pin needs to be detached, and the screw (bolt) connection is left, so that only in the cooling stage after solidification can the male die splice be pushed away in the axial direction through the plurality of annular ribs of the cylinder body. After the winding is completed, the positioning pins between the respective first and second male mold segments 121, 122 and the core barrel 110 are removed, and the bolts for connection remain connected.
The method comprises the steps of feeding a forming die into a processing device, for example, an autoclave, vacuum film wrapping, vacuumizing, reheating and pressurizing, specifically, feeding the die after winding materials into the autoclave, wrapping the whole die by a vacuum bag with a vacuum nozzle, connecting the vacuum nozzle on the vacuum bag with the vacuum nozzle of the autoclave, vacuumizing, and heating and pressurizing in the autoclave according to a process system to solidify products until forming. After the cylindrical product 500 is formed and cooled, the product is cooled to room temperature together with the mold in an autoclave after solidification.
The mould is wound from a horizontal state, enters an autoclave and is solidified, the mould is supported in the horizontal state through support rotating shafts 400 at two ends, the mould is turned to a vertical state, a female die splicing block 310 is firstly dismounted from the outer side of a barrel product 500, bolts are dismounted, the female die splicing block 310 is dismounted from the outer side, then a compression ring 200 and the support rotating shafts 400 are dismounted from two sides of the barrel product 500, and the bolts are firstly dismounted, and then the compression ring 200 and the support rotating shafts 400 are dismounted.
And then removing the core barrel 110 from the inner side of the barrel product 500, firstly removing the connection between the core barrel 110 and each male die splicing block, pulling the core barrel 110 upwards, and then removing the male die splicing blocks from the inner side of the barrel product 500, wherein each male die splicing block can shrink in the radial direction to be separated from the inner side of the barrel product 500, and the axial length of the barrel product 500 is larger than the axial length of the male die splicing block in the axial direction, so that the adjacent male die splicing blocks spliced to form the annular groove 120b are separated in the axial direction by utilizing the plurality of annular ribs 510 of the barrel product 500, and further, the male die splicing blocks can be smoothly removed, so that the interference between the plurality of annular ribs 510 of the barrel product 500 and the plurality of annular grooves 120b of the integral rigid male die assembly 100 is avoided, and the demolding is difficult or damaged.
In the prior art, the problem of difficult demolding of the cylindrical product 500 exists in demolding, and in the prior art, when the cylindrical product 500 is molded, the cylindrical product 500 is difficult to separate from the mold after being cooled by adopting a hard die method, because the expansion coefficient of the cylindrical product 500 is different from that of a material, and because the expansion coefficient of the solidified product is smaller than that of a common metal material, the shrinkage of the product and the mold is different in a cooling stage after high-temperature solidification, so that interaction force is generated between the groove profile of the annular groove 120b of the metal male die and the annular ribs 510 of the product, and the demolding of the product is difficult. The outer side of the cylindrical product 500 can be exposed by removing the female die splice 310 from the outer side of the cylindrical product 500, the inner core barrel 110 of the cylindrical product 500 is removed, the remaining dies are all of detachable structures, the male die splice is only attached to the inner side of the cylindrical product 500, the acting force of each rib of the male die splice and the cylindrical product 500 is limited, or no acting force exists, so that the male die splice can be removed, the difficulty in demolding of the cylindrical product 500 from the dies is effectively reduced, and materials can be smoothly separated from the dies. Meanwhile, by adopting the molding method, the molding process of the cylindrical product 500 can be simplified, and the cylindrical product 500 can be molded at one time by using a mold.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," "alternative examples," or "alternative embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims (10)
1. A forming die of a mesh ribbed cylinder for manufacturing a cylinder product (500), characterized in that an inner side of the cylinder product (500) is provided with mutually intersecting annular ribs (510) and longitudinal ribs (520), the forming die comprising:
The male die assembly (100) comprises a core barrel (110) and a plurality of male die rings (120), wherein the ends of the male die rings (120) are sequentially spliced to form a cylindrical structure for supporting the inner side of a cylindrical product (500), the cylindrical structure is adhered to the outer wall of the core barrel (110), the male die rings (120) are annular structures formed by splicing a plurality of male die splicing blocks along the circumferential direction, the male die splicing blocks are detachably connected with the core barrel (110), and the male die splicing blocks are made of metal materials;
two compression rings (200) which are respectively connected to two ends of the core barrel (110), wherein the compression rings (200) are made of metal materials;
The female die assembly (300) is sleeved on the periphery of the cylindrical structure and used for supporting the outer side of the cylindrical product (500), the female die assembly (300) is formed by splicing a plurality of female die splice blocks (310) along the circumferential direction of the annular structure, two ends of each female die splice block (310) are respectively detachably connected with the corresponding compression ring (200), each compression ring (200) is made of a metal material, and a plurality of female die splice blocks (310), a plurality of male die rings (120) and two compression rings (200) are encircled to form a cavity for manufacturing the cylindrical product (500);
the two support rotating shafts (400) are respectively and detachably connected to two ends of the core barrel (110), the support rotating shafts (400) are in shaft sleeve connection with the compression ring (200), and the support rotating shafts (400) are used for supporting the core barrel (110) and transmitting rotation torque around an axis;
the male die blocks comprise a plurality of first male die blocks (121) and a plurality of second male die blocks (122), and the first male die blocks (121) and the second male die blocks (122) are alternately spliced to form the annular structure;
The core barrel (110) comprises a barrel body (111), a first barrel ring (112) and a second barrel ring (113), wherein the first barrel ring (112) and the second barrel ring (113) are respectively connected to two ends of the barrel body (111), the barrel body (111) is detachably connected with a plurality of male die rings (120), and the first barrel ring (112) and the second barrel ring (113) are respectively detachably connected with a pressing ring (200) and a supporting rotating shaft (400);
The cylinder body (111), the first male die splicing block (121), the second male die splicing block (122), the first cylinder ring (112), the second cylinder ring (113), the compression ring (200), the female die splicing block (310) and the support rotating shaft (400) are respectively provided with a connecting hole and a connecting piece, the connecting piece is connected with the corresponding connecting hole, the connecting piece and the corresponding connecting hole are respectively used for connecting the cylinder body (111) with the first male die splicing block (121) and the second male die splicing block (122), the first cylinder ring (112), the second cylinder ring (113) and the corresponding compression ring (200), and the compression ring (200) is connected with the female die splicing block (310), and the support rotating shaft (400) is connected with the first cylinder ring (112) and the second cylinder ring (113), wherein the connecting holes of the first male die splicing block (121), the second male die splicing block (122) and the cylinder body (111) are in a shape;
The male die splice is provided with at least one half of circumferential grooves (120 b), and the half of circumferential grooves (120 b) are positioned at the end part of the male die splice and are arranged along the circumferential direction of the male die ring (120), and the half of circumferential grooves (120 b) of adjacent male die splice are spliced and combined into one circumferential groove (120 b), wherein the circumferential grooves (120 b) are arranged along the two side directions of the male die splice and are used for forming intervals for manufacturing the annular ribs (510);
the number of the annular grooves (120 b) is one half, wherein one annular groove (120 b) is arranged between two ends of the male die block;
In use of the forming die, the male die segments are pushed apart axially by the plurality of annular ribs (510) of the barrel product (500) during the cooling stage after solidification.
2. The forming die of the grid rib cylinder according to claim 1, wherein the male die block is further provided with longitudinal grooves (120 a), the longitudinal grooves (120 a) are provided with at least two, and the longitudinal grooves (120 a) are provided along both end directions of the male die block for forming a space for manufacturing the longitudinal ribs (520).
3. The forming die of the grid rib cylinder body according to claim 2, wherein a circumferential groove (120 b) is formed at the butt joint of the male die segments of adjacent male die rings (120), or the butt joint is flush, and the longitudinal grooves (120 a) of a plurality of male die segments corresponding to the same position of all the male die rings (120) are positioned on the same straight line.
4. The forming die of the grid ribbed cylinder according to claim 1, characterized in that both sides of the first male die segment (121) are provided with acute angled inclined planes (121 a), an angle α is formed between the acute angled inclined planes (121 a) and the outer wall of the core cylinder (110), both sides of the second male die segment (122) are provided with obtuse angled inclined planes (122 a), an angle β is formed between the obtuse angled inclined planes (122 a) and the outer wall of the core cylinder (110), wherein α+β=180°.
5. The forming die of the grid rib cylinder body according to claim 1, wherein the cylinder body (111), the first male die block (121), the second male die block (122), the first cylinder ring (112), the second cylinder ring (113), the press ring (200), the female die block (310) and the support rotating shaft (400) are respectively provided with a positioning hole and a positioning piece, the positioning piece is matched with the corresponding positioning hole, the positioning piece and the corresponding positioning hole are respectively used for positioning between the cylinder body (111) and the first male die block (121) and between the second male die block (122), positioning between the first cylinder ring (112), the second cylinder ring (113) and the corresponding press ring (200), positioning between the press ring (200) and the female die block (310), and positioning between the support rotating shaft (400) and the first cylinder ring (112) and the second cylinder ring (113).
6. The mold for forming the cylinder with the grid ribs according to claim 1, wherein the female die segments (310) are provided with female die longitudinal reinforcing ribs (320) and female die circumferential reinforcing ribs (330) in a crisscross manner.
7. The mold with grid rib cylinder according to claim 1, wherein the supporting rotating shaft (400) comprises a rotating shaft (410), a flange plate (420), a positioning ring (440) and a rib plate (430), the flange plate (420) is connected to the rotating shaft (410), the positioning ring (440) is attached to the flange plate (420), and the rib plate (430) is connected to the flange plate (420) and the rotating shaft (410).
8. A molding method, characterized in that the molding die for the cylinder with the grid ribs according to any one of claims 1 to 7 is adopted, comprising:
Firstly, mounting the core barrel (110) and the male die ring (120), mounting the support rotating shaft (400), winding the material of a barrel product (500) on the outer sides of all the male die rings (120), mounting the compression ring (200), and finally mounting the female die splicing blocks (310);
Sending the molding die into a heating and pressurizing device, coating a vacuum film, vacuumizing, reheating and pressurizing, and molding and cooling the cylindrical product (500);
Firstly, detaching the female die splice (310) from the outer side of the cylindrical product (500), and then detaching the compression ring (200) and the supporting rotating shaft (400) from the two sides of the cylindrical product (500);
The core barrel (110) is then removed from the inside of the barrel product (500), and the male mold segments are removed from the inside of the barrel product (500).
9. The forming method according to claim 8, wherein, in the case where the male die segments are provided with circumferential grooves (120 b) and longitudinal grooves (120 a), the specific steps before the forming of the cylindrical product (500) include:
Firstly, installing a plurality of male die rings (120) on the core barrel (110), and then connecting two supporting rotating shafts (400) to two ends of the core barrel (110);
Winding material of a cylindrical product (500) in the longitudinal groove (120 a) and the circumferential groove (120 b) respectively until the longitudinal groove (120 a) and the circumferential groove (120 b) are filled;
compacting the wound material by sucking glue and winding a skin on the outer sides of all the male die rings (120);
Mounting the compression rings (200) at two ends of the core barrel (110), and sucking and compacting glue;
Installing the female die block (310) and sealing the material of the cylindrical product (500) in the cavity;
and heating the forming die until forming.
10. The molding method according to claim 8, wherein the molding method is used for molding a resin-based fiber reinforced composite material, and the material of the cylindrical product (500) used is a resin-based fiber reinforced composite material.
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| CN101450533A (en) * | 2007-11-30 | 2009-06-10 | 航天材料及工艺研究所 | Carbon fiber reinforcement resin base composite material lattice structural-component conforming die and method |
| CN115625826A (en) * | 2022-11-07 | 2023-01-20 | 长春长光宇航复合材料有限公司 | Composite material cabin section, forming mold and preparation method of composite material beam |
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| GB0327044D0 (en) * | 2003-11-18 | 2004-04-07 | Rolls Royce Plc | A method of manufacturing a fibre reinforced metal matrix composite article and a cassette for use therein |
| CN204801061U (en) * | 2015-07-21 | 2015-11-25 | 湖北鼎誉环保科技有限公司 | Full glass steel machinery of high density integration internal -rib reinforcing twines whole shaping pipeline, jar phantom utensil equipment |
| FR3040014B1 (en) * | 2015-08-14 | 2017-09-08 | Conseil & Technique | METHOD FOR MANUFACTURING AN ANNULAR SHAPE FRAME |
| CN110948903A (en) * | 2019-11-05 | 2020-04-03 | 上海复合材料科技有限公司 | Mold and molding method for preparing carbon fiber grid bearing cylinder through integrated molding |
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| CN101450533A (en) * | 2007-11-30 | 2009-06-10 | 航天材料及工艺研究所 | Carbon fiber reinforcement resin base composite material lattice structural-component conforming die and method |
| CN115625826A (en) * | 2022-11-07 | 2023-01-20 | 长春长光宇航复合材料有限公司 | Composite material cabin section, forming mold and preparation method of composite material beam |
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