CN109130237B - Manufacturing die and manufacturing method of integrally-formed carbon fiber propeller - Google Patents
Manufacturing die and manufacturing method of integrally-formed carbon fiber propeller Download PDFInfo
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- CN109130237B CN109130237B CN201810776490.2A CN201810776490A CN109130237B CN 109130237 B CN109130237 B CN 109130237B CN 201810776490 A CN201810776490 A CN 201810776490A CN 109130237 B CN109130237 B CN 109130237B
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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
- B29C70/345—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 matched moulds
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete 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
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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
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/087—Propellers
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a manufacturing die for integrally forming a carbon fiber propeller, which comprises a die assembly, wherein the die assembly provides pressure in the die assembly process; the pressure-bearing device is used for bearing pressure in the film combining process; and the die cavity assembly is arranged above the pressure-bearing device and is matched with the die pressing device in the film laminating process. The invention solves the technical problems of low uniform distribution degree of the blades and low bonding strength easily existing in the prior art of preparing the propeller by adopting a split forming process, and the invention adopts the composite material carbon fiber, thereby having the advantages of light specific gravity, high strength and good stealth performance; meanwhile, the invention also provides a manufacturing method of the integrally formed carbon fiber propeller.
Description
Technical Field
The invention belongs to the technical field of preparation of a mould of a propeller, and particularly relates to a manufacturing mould and a manufacturing method of an integrally formed carbon fiber propeller.
Background
At present, the carbon fiber propeller mostly adopts a split forming process, and blades and a hub are formed separately and then combined into a whole through joggling and bonding. The blades of the propeller need to have a better position relation so as to ensure that the blades meet the requirements of fluid dynamics under the working state and avoid generating turbulent flow. The blades and the hub of the split-type carbon fiber propeller are connected by the adhesive, so that the positioning problem exists in the bonding process, and the position degree between the blades cannot be ensured. The propeller is one of final execution devices of a power system, and in an operating state, propeller blades are continuously impacted by external fluid, so that the propeller is required to have high strength and rigidity, particularly at a connecting position between the propeller blades and a hub, the connecting position between the assembled and bonded propeller blades and the hub is often a weak position, and the strength of the propeller blades and the strength of the hub are affected by adhesive strength, a bonding process and the like. Therefore, the manufacturing die and the manufacturing method for the integrally molded carbon fiber propeller are provided.
Disclosure of Invention
The invention aims to provide a manufacturing die and a manufacturing method for integrally forming a carbon fiber propeller, which at least solve the technical problems of heavier weight, insufficient strength and complex manufacturing process in the prior art for preparing the propeller and can also solve the technical problems of low uniform distribution degree and low bonding strength of blades in the prior art for preparing the propeller.
In order to solve the problems, the invention provides a manufacturing die and a manufacturing method of an integrally formed carbon fiber propeller, and the technical scheme is as follows:
a manufacturing die for integrally forming a carbon fiber propeller comprises a die assembly, wherein the die assembly provides pressure in the die assembly process; the pressure-bearing device is used for bearing pressure in the film combining process; and the die cavity assembly is arranged above the pressure-bearing device and is matched with the die pressing device in the film laminating process.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the die cavity assembly comprises a middle shaft positioning core, and the middle shaft positioning core is arranged right above the pressure-bearing device; the guide rails are installed above the pressure-bearing device and are uniformly distributed on the periphery of the middle shaft positioning core; the side sliding blocks are correspondingly arranged on the guide rails one by one, and the side sliding blocks are in sliding fit with the guide rails.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the die assembly comprises an upper pressing plate; the upper template is arranged below the upper pressure plate; the inclined guide posts are uniformly distributed below the upper die plate and are matched with the side sliding blocks one by one.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably:
the die cavity assembly further comprises a guide sleeve, and the die assembly further comprises a guide pillar; the guide sleeve is matched with the guide pillar to realize the die assembly positioning of the die cavity assembly and the die assembly.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the guide sleeve and the guide pillar are multiple.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably:
the pressure-bearing device comprises a bottom plate, and the bottom plate is arranged below the die cavity assembly; the heat insulation plates are uniformly arranged at four corners of the bottom plate; the supporting seats are correspondingly arranged below the heat insulation plates one by one; the lower pressing plate is used for providing support, the supporting seats are installed above the lower pressing plate, and the lower pressing plate is arranged on the ground
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the pressure-bearing device further comprises a jacking device, the jacking device comprises a top plate, the top plate is arranged above the lower pressing plate, and the plurality of supporting seats are uniformly distributed on the periphery of the top plate; the ejector rod fixing plate is arranged above the top plate; and the upper end of the return spring is connected with the bottom plate, and the lower end of the return spring is connected with the ejector rod fixing plate.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the die assembly adopts a lateral die mode.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the die cavity assembly is characterized in that round holes are formed in the side sliding blocks, the round holes of the side sliding blocks are arranged in one-to-one correspondence with inclined guide posts of the die assembly, and the side sliding blocks and the inclined guide posts are matched to realize die assembly and die disassembly of the die cavity assembly and the die assembly.
The mold for producing the integrally molded carbon fiber propeller as described above is more preferably: the die cavity assembly is characterized by further comprising a press, and the press is connected with the die pressing device, the die cavity assembly and the jacking device.
The invention also provides a manufacturing method of the integrally formed carbon fiber propeller, which comprises the following steps:
s1, laying the cut carbon fiber prepreg cloth on the side sliding blocks in sequence in a one-to-one correspondence manner; the side sliding block is arranged on the guide rail, the oblique guide post drives the side sliding block to slide along the guide rail in the centripetal direction through the die closing process of a press, the die closing process is performed at the moment, and a preliminary formed product is obtained after die closing is completed;
s2, heating and curing the preliminary molding product after the mold is closed in place, and obtaining a final molding product;
and S3, opening the die assembly, enabling the side slide block to move towards the centrifugal direction along the guide rail by the inclined guide post, then pushing the top plate to move upwards through the jacking device, so that the final molded product is ejected out, and enabling the top plate to return automatically by the return spring after the jacking device returns, wherein the final molded product is demoulded at the moment.
In the manufacturing method, the number of the blades of the manufactured carbon fiber propeller is seven.
Analysis shows that compared with the prior art, the invention has the following beneficial effects:
the invention provides a manufacturing die and a manufacturing method of an integrally formed carbon fiber propeller. When the device is used for closing the mold, the die assembly moves downwards, the inclined guide post of the die assembly drives the side slide block of the mold cavity component in the process of closing the mold, so that the side slide block slides along the guide rail in the centripetal direction, and after the mold is closed in place, a preliminarily molded product is heated and cured in the mold cavity component to a finally molded product; when the die assembly is demolded, the die assembly is opened through the press, the inclined guide post of the die assembly drives the side slide block of the die cavity assembly in the demolding process, the side slide block slides along the guide rail in the centrifugal direction, then the top plate of the jacking device moves upwards through the press, a final formed product is ejected, and after the jacking device returns, the return spring automatically enables the top plate to return. Therefore, the integrally formed carbon fiber propeller can be obtained only by matching the die assembly, the pressure-bearing device, the die cavity assembly and the press, and the technical problems that blades are easy to delaminate and air bubbles are easy to adhere when the propeller is prepared by adopting a split forming process in the prior art are solved; meanwhile, the composite carbon fiber adopted by the invention has the advantages of light specific gravity, high strength and good stealth performance; moreover, the design technology of the manufacturing die and the manufacturing method of the integrally molded carbon fiber propeller solves the technical problems of prepreg laying, die assembly and the like during simultaneous molding of the blades and the hub; in conclusion, the design technology of the manufacturing die and the manufacturing method of the integrally formed carbon fiber propeller fills the gap of the die pressing and integrally forming technology of the carbon fiber composite propeller in China.
In the invention, the upper part of the die cavity component is perfectly matched with the lower part of the die pressing device. The die cavity assembly comprises a middle shaft positioning core, a plurality of guide rails and a plurality of side sliding blocks, the middle shaft positioning core is installed right above the pressure-bearing device, and the guide rails are installed above the pressure-bearing device and are uniformly distributed on the periphery of the middle shaft positioning core; the side sliding blocks are correspondingly arranged on the guide rails one by one, and the side sliding blocks are in sliding fit with the guide rails; the die assembly comprises an upper pressing plate, an upper die plate and a plurality of inclined guide posts, wherein the upper die plate is arranged below the upper pressing plate, the inclined guide posts are uniformly distributed below the upper die plate, and the inclined guide posts are matched with the side sliding blocks one by one; the die cavity assembly and the die pressing device are matched more accurately only by arranging the upper part of the die cavity assembly and the lower part of the die pressing device in a one-to-one correspondence mode, namely the die assembly process of the invention can achieve higher accuracy.
Thirdly, the die cavity component also comprises a guide sleeve, the die pressing device also comprises a plurality of guide columns, and the guide sleeves and the guide columns are arranged in a matched manner, so that the die cavity component and the die pressing device can be conveniently clamped and positioned; the guide sleeves and the guide columns are preferably four in number, and the guide sleeves are arranged at four corners of the die cavity assembly, so that the die pressing device and the die cavity assembly are convenient to position when the die is assembled, and the die pressing is not influenced.
Fourthly, the pressure-bearing device is provided with a heat-insulating plate. The pressure-bearing device comprises a bottom plate, a plurality of heat insulation plates, a plurality of supporting seats and a lower pressing plate, wherein the bottom plate is arranged below the die cavity assembly, the heat insulation plates are uniformly arranged at four corners of the bottom plate, the supporting seats are correspondingly arranged below the heat insulation plates one by one, the lower pressing plate is used for providing support, and the supporting seats are arranged above the lower pressing plate.
And fifthly, the die pressing mode adopted by the invention is a lateral die pressing mode. The inclined guide posts of the die assembly are uniformly arranged below the upper die plate, when the die assembly works, the inclined guide posts of the die assembly are matched with the side slide blocks of the die cavity assembly one by one, and the radial pressure generated by the die assembly is decomposed into pressure vertical to the direction of the paddle and pressure vertical to the direction of the paddle heel.
According to the invention, the cut carbon fiber prepreg cloth is sequentially laid on the side sliding blocks on the guide rail, and the side sliding blocks perform centripetal or centrifugal motion along the guide rail during die assembly and demoulding.
Drawings
Fig. 1 is a schematic structural view of a mold for manufacturing an integrally molded carbon fiber propeller according to the present invention.
FIG. 2 is a schematic top view of a mold cavity assembly of the present invention.
In the figure: 1-an upper pressing plate; 2, mounting a template; 3-an inclined guide post; 4-guide pillar; 5-a mold cavity assembly; 6-a bottom plate; 7-insulating board; 8-a return spring; 9-ejector pin fixing plate; 10-a top plate; 11-a support seat; 12-a lower press plate; 51-a guide sleeve; 52-a guide rail; 53-middle axis positioning core; 54-side slide.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description by taking a propeller forming die with a diameter of 100mm as an example.
As shown in fig. 1, the mold for manufacturing the integrally formed carbon fiber propeller of the present invention comprises a die assembly for providing pressure during the process of mold assembly; the pressure-bearing device is used for bearing pressure in the film combining process; and the die cavity assembly 5 is arranged above the pressure-bearing device and is matched with the die pressing device in the film combining process.
In summary, the mold and the method for manufacturing the integrally formed carbon fiber propeller provided by the invention are formed by a mold pressing method. When the device is used for closing the mold, the mold pressing device moves downwards, the inclined guide post 3 of the mold pressing device drives the side slide block 54 of the mold cavity component 5 in the mold closing process, so that the side slide block 54 slides along the guide rail 52 in the centripetal direction, and after the mold is closed in place, the preliminarily molded product is heated and cured in the mold cavity component 5 to be finally molded; when the device is used for demoulding, the die pressing device is opened through the press, the inclined guide post 3 of the die pressing device drives the side slide block 54 of the die cavity assembly 5 in the demoulding process, the side slide block 54 slides along the guide rail 52 in the centrifugal direction, then the top plate 10 of the jacking device moves upwards through the press, so that a final formed product is ejected, and after the jacking device returns, the return spring 8 can automatically enable the top plate 10 to return. Therefore, the integrally formed carbon fiber propeller can be obtained only by matching the die assembly, the pressure-bearing device, the die cavity assembly 5 and the press, and the technical problems that blades are easy to delaminate and air bubbles are easy to adhere when the propeller is prepared by adopting a split forming process in the prior art are solved; meanwhile, the composite carbon fiber adopted by the invention has the advantages of light specific gravity, high strength and good stealth performance; moreover, the design technology of the manufacturing die and the manufacturing method of the integrally molded carbon fiber propeller solves the technical problems of prepreg laying, die assembly and the like during simultaneous molding of the blades and the hub; in conclusion, the design technology of the manufacturing die and the manufacturing method of the integrally formed carbon fiber propeller fills the gap of the die pressing and integrally forming technology of the carbon fiber composite propeller in China.
As shown in fig. 1 and 2, the invention designs a manufacturing mold and a manufacturing method for integrally forming a carbon fiber propeller aiming at the characteristics of complex structure, high requirement on dimensional precision and the like of the carbon fiber propeller. The die cavity component 5 comprises a plurality of guide sleeves 51, a plurality of guide rails 52, a middle shaft positioning core 53 and a plurality of side sliding blocks 54, wherein the guide sleeves 51 are arranged at four corners of the die cavity component 5, the middle shaft positioning core 53 is arranged right above a pressure-bearing device, the guide rails 52 are arranged above the pressure-bearing device and are uniformly distributed on the periphery of the middle shaft positioning core 53, the side sliding blocks 54 are correspondingly arranged on the guide rails 52 one by one, and the side sliding blocks 54 are in sliding fit with the guide rails 52; the die assembly comprises top board 1, last die cavity 2, a plurality of oblique guide pillar 3 and a plurality of guide pillar 4, and top board 2 installs in the below of top board 1, and a plurality of guide pillar 4 install in the four corners of cope match-plate pattern 2 to set up with the guide pin bushing 51 one-to-one of die cavity subassembly 5, the below of cope match-plate pattern 2 is installed to a plurality of oblique guide pillar 3 equipartitions, and make oblique guide pillar 3 and the side slide 54 cooperate one-to-one. The upper part of the die cavity assembly 5 is perfectly matched with the lower part of the die assembly, and the die cavity assembly 5 and the die assembly are matched more accurately only by arranging the upper part of the die cavity assembly 5 and the lower part of the die assembly in a one-to-one correspondence manner, namely the die assembly process can achieve higher accuracy.
As shown in fig. 1 and 2, in order to prolong the service life of a plurality of supporting seats 11 of the pressure-bearing device, the pressure-bearing device is provided with a heat insulation plate 7. The pressure-bearing device comprises a bottom plate 6, a plurality of heat insulation plates 7, a plurality of supporting seats 11 and a lower pressing plate 12, wherein the bottom plate 6 is arranged below a die cavity assembly 5, the heat insulation plates 7 are uniformly arranged at four corners of the bottom plate 6, the supporting seats 11 are correspondingly arranged below the heat insulation plates 7 one by one, the lower pressing plate 12 is used for providing support, and the supporting seats 11 are arranged above the lower pressing plate 12.
As shown in fig. 1 and 2, in order to make the heel and the blade more firmly molded and to make the carbon fiber fully fused into the product, the compression molding mode adopted by the invention is a lateral compression molding mode. The inclined guide posts 3 of the die assembly are uniformly arranged below the upper die plate 2, when the die assembly works, the inclined guide posts 3 of the die assembly are matched with the side slide blocks 54 of the die cavity component 5 one by one, and the radial pressure generated by the die assembly is decomposed into pressure vertical to the direction of the paddle and pressure vertical to the direction of the paddle heel.
In the invention, the side slide block 54 is provided with a round hole (not shown), and the round hole of the side slide block 54 is arranged corresponding to the inclined guide post 3 of the die assembly one by one, so that in the process of die assembly and die release, the round hole of the side slide block 54 plays a role in position limitation on the inclined guide post 3 of the die assembly, so that the side slide block 54 and the inclined guide post 3 can be stably matched, and the die assembly and die release of the die cavity assembly 5 and the die assembly are realized. The invention also comprises a press (not shown), the press is connected with the die assembly, the die cavity assembly 5 and the jacking device, and the press is connected with the die assembly and can be matched with the die assembly to realize the die-pressing process of the die assembly; the press is connected with the die cavity component 5, and the press can be matched with the die cavity component 5 to realize the heating and curing of a product after the die is closed in place in the die closing process; the press is connected with the jacking device, and after a product is subjected to die assembly forming, the press can be matched with the jacking device to realize the ejection of the product from the die cavity assembly 5, so that the product is demoulded.
In the invention, the diameter of the carbon fiber propeller is 100mm, the number of the blades is seven, the number of the corresponding side sliding blocks 54 and the number of the corresponding guide rails 52 are seven, and the carbon fiber propeller is molded by adopting an integral molding method.
As shown in fig. 1 and 2, the invention also provides a method for manufacturing the integrally formed carbon fiber propeller, which comprises the following steps:
s1, laying the cut carbon fiber prepreg cloth on the side sliding blocks 54 in sequence in a one-to-one correspondence manner; installing the side slide block 54 on the guide rail 52, realizing that the inclined guide post 3 drives the side slide block 54 to slide along the guide rail 52 in the centripetal direction through the die closing process of a press, wherein the die closing process is carried out at the moment, and obtaining a preliminary formed product after die closing is finished;
s2, heating and curing the preliminary molding product after the mold is closed in place, and obtaining a final molding product;
and S3, opening the die assembly, enabling the side slide blocks 54 to move along the guide rails 52 in the centrifugal direction by the inclined guide columns 3, then pushing the top plate 10 to move upwards through the jacking device, so that the final molded product is ejected out, and after the jacking device returns, the return spring 8 automatically enables the top plate 10 to return, and at the moment, the final molded product is demoulded.
In the manufacturing method, the number of the blades of the manufactured carbon fiber propeller is seven.
The measured value and the theoretical value of the propeller pressed by the die are shown in Table 1
TABLE 1 product inspection chart
Analysis shows that compared with the prior art, the invention has the following beneficial effects:
the invention provides a manufacturing die and a manufacturing method of an integrally formed carbon fiber propeller. When the device is used for closing the mold, the mold pressing device moves downwards, the inclined guide post 3 of the mold pressing device drives the side slide block 54 of the mold cavity component 5 in the mold closing process, so that the side slide block 54 slides along the guide rail 52 in the centripetal direction, and after the mold is closed in place, the preliminarily molded product is heated and cured in the mold cavity component 5 to be finally molded; when the device is used for demoulding, the die pressing device is opened through the press, the inclined guide post 3 of the die pressing device drives the side slide block 54 of the die cavity assembly 5 in the demoulding process, the side slide block 54 slides along the guide rail 52 in the centrifugal direction, then the top plate 10 of the jacking device moves upwards through the press, so that a final formed product is ejected, and after the jacking device returns, the return spring 8 can automatically enable the top plate 10 to return. Therefore, the integrally formed carbon fiber propeller can be obtained only by matching the die assembly, the pressure-bearing device, the die cavity assembly 5 and the press, and the technical problems that blades are easy to delaminate and air bubbles are easy to adhere when the propeller is prepared by adopting a split forming process in the prior art are solved; meanwhile, the composite carbon fiber adopted by the invention has the advantages of light specific gravity, high strength and good stealth performance; moreover, the design technology of the manufacturing die and the manufacturing method of the integrally molded carbon fiber propeller solves the technical problems of prepreg laying, die assembly and the like during simultaneous molding of the blades and the hub; in conclusion, the design technology of the manufacturing die and the manufacturing method of the integrally formed carbon fiber propeller fills the gap of the die pressing and integrally forming technology of the carbon fiber composite propeller in China.
In the present invention, the upper part of the cavity assembly 5 is perfectly matched with the lower part of the die assembly. The die cavity assembly 5 comprises a middle shaft positioning core 53, a plurality of guide rails 52 and a plurality of side sliding blocks 54, the middle shaft positioning core 53 is installed right above the pressure-bearing device, the guide rails 52 are installed above the pressure-bearing device and are uniformly distributed on the periphery of the middle shaft positioning core 53, the side sliding blocks 54 are installed on the guide rails 52 in a one-to-one correspondence manner, and the side sliding blocks 54 are in sliding fit with the guide rails 52; the die assembly comprises an upper pressing plate 1, an upper die plate 2 and a plurality of inclined guide posts 3, wherein the upper die plate 2 is arranged below the upper pressing plate 1, the inclined guide posts 3 are uniformly distributed below the upper die plate 2, and the inclined guide posts 3 are matched with the side sliding blocks 54 one by one; according to the invention, the upper parts of the die cavity assemblies 5 and the lower parts of the die devices are arranged in a one-to-one correspondence manner, so that the die cavity assemblies 5 and the die devices can be matched more accurately, namely the die assembly process can achieve higher accuracy.
Thirdly, the die cavity component 5 further comprises a guide sleeve 51, the die assembly further comprises a plurality of guide columns 4, the guide sleeves 51 and the guide columns 4 are arranged in a matched mode, and die assembly positioning of the die cavity component 5 and the die assembly is facilitated; according to the invention, the number of the guide sleeves 51 and the guide columns 4 is preferably four, and the guide sleeves 51 are arranged at four corners of the die cavity component 5, so that the die assembly and the die cavity component 5 can be conveniently positioned when being matched, and the die assembly is not influenced.
Fourthly, in the invention, the pressure-bearing device is provided with a heat-insulating plate 7. The pressure-bearing device comprises a bottom plate 6, a plurality of heat insulation plates 7, a plurality of supporting seats 11 and a lower pressing plate 12, wherein the bottom plate 6 is arranged below a die cavity assembly 5, the heat insulation plates 7 are uniformly arranged at four corners of the bottom plate 6, the supporting seats 11 are correspondingly arranged below the heat insulation plates 7 one by one, the lower pressing plate 12 is used for providing support, and the supporting seats 11 are arranged above the lower pressing plate 12.
And fifthly, the die pressing mode adopted by the invention is a lateral die pressing mode. The inclined guide posts 3 of the die assembly are uniformly arranged below the upper die plate 2, when the die assembly works, the inclined guide posts 3 of the die assembly are matched with the side slide blocks 54 of the die cavity component 5 one by one, and the radial pressure generated by the die assembly is decomposed into pressure vertical to the direction of the paddle and pressure vertical to the direction of the paddle heel.
Sixth, in the invention, the cut carbon fiber prepreg cloth is laid on the side slide block 54 on the guide rail 52 in sequence, when the mold is closed and the mold is released, the side slide block 54 makes centripetal or centrifugal motion along the guide rail 52, the invention adopts a mode of simultaneously molding the blade and the hub at one time, the continuity and the integrity of the propeller structure are ensured to the maximum extent, and the propeller has good mechanical properties.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (7)
1. The utility model provides a preparation mould of integrated into one piece carbon fiber screw which characterized in that includes:
a die assembly that provides pressure during clamping;
the pressure-bearing device is used for bearing pressure in the film combining process;
the die cavity assembly (5) is arranged above the pressure-bearing device and matched with the die pressing device in the film combining process;
the mold cavity assembly (5) comprises:
the middle shaft positioning core (53), the middle shaft positioning core (53) is arranged right above the pressure-bearing device;
the guide rails (52) are installed above the pressure-bearing device and are uniformly distributed on the periphery of the middle shaft positioning core (53);
the side sliding blocks (54) are arranged on the guide rails (52) in a one-to-one correspondence mode, and the side sliding blocks (54) are in sliding fit with the guide rails (52);
the die assembly includes:
an upper platen (1);
the upper template (2), the upper template (2) is installed below the upper pressure plate (1);
the inclined guide posts (3) are uniformly arranged below the upper template (2), and the inclined guide posts (3) are matched with the side sliding blocks (54) one by one;
the die cavity assembly (5) further comprises a guide sleeve (51), and the die assembly further comprises a guide post (4);
the guide sleeve (51) is matched with the guide post (4) to realize the die assembly positioning of the die cavity assembly (5) and the die assembly.
2. The mold for manufacturing an integrally molded carbon fiber propeller as claimed in claim 1, wherein:
the guide sleeves (51) and the guide columns (4) are multiple.
3. The mold for manufacturing an integrally molded carbon fiber propeller as claimed in claim 1, wherein the pressure-bearing device comprises:
a bottom plate (6), said bottom plate (6) mounted below said mold cavity assembly (5);
the heat insulation plates (7) are uniformly distributed at four corners of the bottom plate (6);
the supporting seats (11) are arranged below the heat insulation plates (7) in a one-to-one correspondence mode;
the lower pressing plate (12), the lower pressing plate (12) is used for providing support, the plurality of supporting seats (11) are installed above the lower pressing plate (12), and the lower pressing plate (12) is arranged on the ground.
4. The mold for manufacturing an integrally formed carbon fiber propeller as recited in claim 3, wherein said pressure-bearing device further comprises a jacking device, said jacking device comprising:
the top plate (10) is installed above the lower pressing plate (12), and the supporting seats (11) are uniformly distributed on the periphery of the top plate (10);
the ejector rod fixing plate (9), the ejector rod fixing plate (9) is installed above the top plate (10);
the upper end of the return spring (8) is connected with the bottom plate (6), and the lower end of the return spring (8) is connected with the ejector rod fixing plate (9).
5. The mold for manufacturing an integrally molded carbon fiber propeller as claimed in claim 1, wherein:
the die assembly adopts a lateral die mode.
6. The manufacturing method of the integrally formed carbon fiber propeller is characterized by comprising the following steps of:
s1, laying the cut carbon fiber prepreg cloth on the side sliding blocks (54) in sequence in a one-to-one correspondence manner; the side sliding blocks (54) are arranged on the guide rail (52), the inclined guide post (3) drives the side sliding blocks (54) to slide along the guide rail (52) in the centripetal direction through the die closing process of a press, the die closing process is performed at the moment, and a primary formed product is obtained after die closing is completed;
s2, heating and curing the preliminary molding product after the mold is closed in place, and obtaining a final molding product;
and S3, opening the die assembly, enabling the side slide block (54) to move towards the centrifugal direction along the guide rail (52) by the inclined guide post (3), then pushing the top plate (10) to move upwards through the jacking device so as to eject the final molded product, and enabling the top plate (10) to return automatically by the return spring (8) after the jacking device returns, wherein the final molded product is demolded at the moment.
7. The method of manufacturing an integrally formed carbon fiber propeller as claimed in claim 6, wherein:
the number of the blades of the manufactured carbon fiber propeller is seven.
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| CN110410362A (en) * | 2019-08-23 | 2019-11-05 | 固特科工业塑料件科技(深圳)有限公司 | A kind of injection mold of turbine and turbine |
| CN111873477A (en) * | 2020-07-17 | 2020-11-03 | 东莞皓宇智能复合材料有限公司 | Manufacturing method and product of composite propeller |
| CN111873449B (en) * | 2020-07-17 | 2022-07-05 | 东莞皓宇智能复合材料有限公司 | Manufacturing method and product of split type composite propeller |
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