CN118636498B - Processing method of racket blank - Google Patents
Processing method of racket blank Download PDFInfo
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- CN118636498B CN118636498B CN202410888438.1A CN202410888438A CN118636498B CN 118636498 B CN118636498 B CN 118636498B CN 202410888438 A CN202410888438 A CN 202410888438A CN 118636498 B CN118636498 B CN 118636498B
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- resin prepreg
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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
- 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
- B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
- B29L2031/5245—Rackets
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
本发明公开了一种球拍胚体的加工方法，具体包括以下步骤：步骤一、依球拍结构的尺寸裁切固态扩胀填充材料和碳纤维环氧树脂预浸料；步骤二、把碳纤维环氧树脂预浸料平铺开，再把固态扩胀填充材料预置于碳纤维环氧树脂预浸料夹层之间，把塑料薄膜管套在卷芯外，本发明涉及球拍胚体制备技术领域。该球拍胚体的加工方法，通过将塑料薄膜管替换为碳纤维环氧树脂预浸料，成功实现了球拍的轻量化与强度增强，这一工艺不仅减少了球拍的重量，还通过相同重量的碳纤维环氧树脂预浸料置换，提升了球拍的强度，显著提升了球拍的整体性能，该工艺在保持球拍轻盈的同时，也增强了其击球减震性能，实现了球拍性能的整体平衡和优化。
The present invention discloses a method for processing a racket embryo, which specifically includes the following steps: step 1, cutting solid expansion filling materials and carbon fiber epoxy resin prepreg according to the size of the racket structure; step 2, spreading the carbon fiber epoxy resin prepreg flat, and then pre-placing the solid expansion filling material between the carbon fiber epoxy resin prepreg interlayers, and sleeve the plastic film tube outside the winding core. The present invention relates to the technical field of racket embryo preparation. The racket embryo processing method successfully achieves lightweighting and strength enhancement of the racket by replacing the plastic film tube with carbon fiber epoxy resin prepreg. This process not only reduces the weight of the racket, but also improves the strength of the racket by replacing the carbon fiber epoxy resin prepreg of the same weight, significantly improving the overall performance of the racket. While keeping the racket light, this process also enhances its shock absorption performance when hitting the ball, achieving overall balance and optimization of the racket performance.
Description
Technical Field
The invention relates to the technical field of racket blank preparation, in particular to a processing method of a racket blank.
Background
The existing racket is easy to vibrate in the use process, especially in the high-strength beating process, so that the use experience of a player is affected, and the hands of the player are possibly injured. Conventional rackets generally reduce vibration by filling a damping material in the frame, but this method has a limited damping effect and increases the weight of the racket, affecting the athletic performance. In addition, in the existing racket manufacturing process, automatic winding equipment for automatically clamping the racket and winding damping materials on a club is lacked, so that the manufacturing efficiency is low, and a racket blank processing method is provided for solving the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a processing method of racket blanks, which solves the problems in the background art.
The invention aims to realize the technical scheme that the processing method of the racket blank body comprises the following steps:
cutting a solid expansion filling material and a carbon fiber epoxy resin prepreg according to the size of the racket structure;
Spreading the carbon fiber epoxy resin prepreg, pre-placing a solid expansion filling material between carbon fiber epoxy resin prepreg interlayers, sleeving a plastic film outside a winding core, pumping air in the plastic film tube by using a vacuum pump to tightly attach the inner wall of the plastic film tube to the winding core, and winding the carbon fiber epoxy resin prepreg which is completely spread and is pre-placed with the solid expansion filling material on the plastic film tube through winding equipment to form a cylinder;
Stopping vacuumizing, fixing the plastic film tube at one end of the winding core, and then fixing the cylindrical carbon fiber prepreg by one hand, withdrawing the winding core by the other hand, and withdrawing the plastic film tube in sequence, namely, winding the plastic film tube into a carbon fiber epoxy resin prepreg tube;
Fourthly, rolling the carbon fiber epoxy resin prepreg tube by a roller mill to exhaust air, tightly attaching layers, improving the strength of the racket, folding and sealing openings at two ends by using the carbon fiber epoxy resin prepreg, connecting the carbon fiber epoxy resin prepreg tube with a middle rod of the racket, wrapping and reinforcing the carbon fiber prepreg tube at the connecting part to form a racket shape, and fixing the manufactured preassembled racket frame on an elliptical jig to smooth the carbon fiber, so that the strength of the racket is prevented from being influenced by wrinkles;
And fifthly, placing the preassembly into a mould and closing the mould, moving the mould into hot pressing equipment, rapidly heating the mould, expanding and enlarging a solid expanding filling material preset in a carbon fiber prepreg interlayer in the mould by heating, rapidly solidifying and shaping the carbon fiber epoxy resin prepreg under the expansion pressure and the limiting action of a mould cavity, moving the mould into a cooler for cooling after the heat solidification is finished, and opening the mould to normal temperature to obtain the solid racket primary blank.
Preferably, the winding device in the second step comprises an installation seat, a clamping assembly for clamping the winding core is arranged at the top of the installation seat, a winding assembly for winding the carbon fiber epoxy resin prepreg on the winding core is further arranged at the top of the installation seat, and the clamping assembly and the winding assembly are controlled by a driving clutch mechanism to work.
Preferably, the clamping assembly comprises a mounting ring fixed at the top of the mounting seat, an annular frame is rotationally connected to the inner surface of the mounting ring, three rotating rods are rotationally connected to one side of the mounting ring through rotating shafts, and rollers are rotationally connected to one ends of the three rotating rods.
Preferably, one side of the inner wall of the annular frame is rotationally connected with three limiting blocks through pin shafts, one ends of the three rotating rods penetrate through the limiting blocks and extend to the outer parts of the limiting blocks, and the outer surfaces of the three rotating rods are slidably connected with the inner surfaces of the limiting blocks.
Preferably, the winding assembly comprises a fixed plate fixed at the top of the mounting seat, an inner gear ring is fixed at the top of the fixed plate, a first gear is rotationally connected to the center of the inner gear ring, a second gear is rotationally connected to the inner gear ring, the second gears are meshed with the inner gear ring and the first gear, and a through pipe is fixed inside the second gears.
Preferably, the drive clutch mechanism comprises a vertical plate fixed at the top of the mounting seat, one side of the vertical plate is rotationally connected with a connecting rod, one end of the connecting rod is fixed with one side of the first gear, one side of the vertical plate is rotationally connected with a driving rod, one ends of the connecting rod and the driving rod penetrate through the vertical plate and extend to the outside of the vertical plate, one end of the connecting rod and the outer surface of the driving rod are both fixed with belt pulleys, and two belt pulleys are connected through belt transmission.
Preferably, one side of riser is fixed with the diaphragm, be fixed with the motor on the diaphragm, the motor drives the actuating lever and rotates, one side of annular frame is fixed with the outer ring gear, one side of outer ring gear is provided with the gear three, the gear three meshes with the outer ring gear, round slot has been seted up in the inside run through of gear three, four draw-in grooves have been seted up on the inner wall of round slot, sliding connection has the clutch block on the actuating lever.
Preferably, the surface mounting of clutch block has four fixture blocks, the surface of clutch block rotates with the internal surface of circular slot to be connected, four one side of fixture block all extends to the inside of draw-in groove, two spacing grooves have been seted up to the inside of clutch block, the top and the bottom of actuating lever all are fixed with spacing, two spacing all extends to the inside of spacing groove, and the surface and the internal surface sliding connection of spacing groove of spacing, one side of clutch block is fixed with the handle.
Preferably, the hot pressing device in the fifth step comprises a base, a forming seat is fixed at the top of the base, a mounting frame is fixed at the top of the base, an air cylinder is fixed at the top of the mounting frame, a movable plate is fixed at the output end of the air cylinder, and a hot pressing plate is installed at the bottom of the movable plate.
Advantageous effects
The invention provides a processing method of racket blanks. Compared with the prior art, the method has the following beneficial effects:
(1) The weight and strength of the racket are successfully reduced by replacing the plastic film tube with the carbon fiber epoxy resin prepreg, the weight of the racket is reduced by the process, the carbon fiber epoxy resin prepreg with the same weight is replaced, the strength of the racket is improved, the overall performance of the racket is obviously improved, the process keeps the light and light racket, meanwhile, the batting shock absorption performance of the racket is enhanced, and the overall balance and optimization of the racket performance are realized.
(2) Through the setting of clamping assembly, realized the adaptability automatic clamp to the core of rolling up, satisfied the clamp to the core of rolling up of equidimension, conveniently press from both sides tight core back, convenient further cladding operation, through the setting of winding assembly, realized the automation with carbon fiber epoxy prepreg winding cladding on the core of rolling up, need not manual operation, promoted the efficiency of winding cladding by a wide margin.
(3) Through the setting of drive clutch mechanism, realized the quick linkage separation and reunion between clamping assembly and the winding subassembly to realized the effect that a motor drove clamping assembly and winding subassembly work, when not needing to use clamping assembly, enable separation and reunion piece in time with three separation of gears, and then make winding subassembly independently twine the work, both linkage nature is strong, can carry out the separation and reunion fast again, convenient operation has promoted work efficiency by a wide margin.
Drawings
FIG. 1 is a perspective view of an external structure of the present invention;
FIG. 2 is a partial structural perspective view of the present invention;
FIG. 3 is a side view of a partial structure of the present invention;
FIG. 4 is a perspective view of a clamping assembly of the present invention;
FIG. 5 is an exploded view of the drive clutch mechanism of the present invention;
fig. 6 is a perspective view of the cylinder, moving plate, and hot plate structure of the present invention.
In the figure, 1, a mounting seat; 2, a clamping assembly, 3, a winding assembly, 4, a driving clutch mechanism, 5, a base, 6, a forming seat, 7, a mounting rack, 8, an air cylinder, 9, a moving plate, 10, a hot pressing plate, 21, a mounting ring, 22, an annular frame, 23, a rotating shaft, 24, a rotating rod, 25, a roller, 26, a limiting block, 31, a fixing plate, 32, an inner gear ring, 33, a gear I, 34, a gear II, 35, a through pipe, 41, a vertical plate, 42, a connecting rod, 43, a driving rod, 44, a belt pulley, 45, a belt, 46, a transverse plate, 47, a motor, 48, an outer gear ring, 49, a gear III, 410, a circular groove, 411, a clamping groove, 412, a clutch block, 413, a clamping block, 414, a limiting groove, 415 and a handle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
The embodiment of the invention provides three technical schemes, which specifically comprise the following embodiments:
example 1
The processing method of the racket blank body specifically comprises the following steps:
cutting a solid expansion filling material and a carbon fiber epoxy resin prepreg according to the size of the racket structure;
Spreading the carbon fiber epoxy resin prepreg, pre-placing a solid expansion filling material between carbon fiber epoxy resin prepreg interlayers, sleeving a plastic film outside a winding core, pumping air in the plastic film tube by using a vacuum pump to tightly attach the inner wall of the plastic film tube to the winding core, and winding the carbon fiber epoxy resin prepreg which is completely spread and is pre-placed with the solid expansion filling material on the plastic film tube through winding equipment to form a cylinder;
Stopping vacuumizing, fixing a plastic film tube at one end of the winding core, then fixing a cylindrical carbon fiber prepreg by one hand, withdrawing the winding core by the other hand, and withdrawing the plastic film tube in a proper direction, namely winding the plastic film tube into a carbon fiber epoxy resin prepreg tube, wherein the weight of the plastic film tube is reduced by 1.5-2 g, and replacing the plastic film tube with the carbon fiber epoxy resin prepreg by the same weight can improve the strength of the racket by 10-15%;
Fourthly, rolling the carbon fiber epoxy resin prepreg tube by a roller mill to discharge air, wherein the rolling pressure is 4 kg/square centimeter, so that the interlayer bonding is tight, the racket strength is improved, the carbon fiber epoxy resin prepreg is used for folding and sealing the openings at two ends and is connected with a middle rod of the racket, the carbon fiber prepreg is used for wrapping and reinforcing at the connecting part to enable the connecting part to be in a racket shape, and the manufactured preassembled racket frame is fixed on an elliptical jig to enable the carbon fiber to be smooth, so that the racket strength is prevented from being influenced by the generation of wrinkles;
Putting the preassembly into a mould and closing the mould, moving the mould into hot pressing equipment, applying 90-110 tons/square meter pressure to enable the mould to be heated quickly, setting the epoxy resin at 135-140 ℃ for 30-40 minutes, presetting the solid expansion filling material in the carbon fiber prepreg interlayer in the mould to expand and expand when heated, setting the expansion rate of the solid expansion filling material to be 50-90 times, generating 5-10 kilograms/square centimeter expansion pressure after the expansion, setting the carbon fiber epoxy resin prepreg to be cured quickly under the expansion pressure and the limiting effect of a mould cavity, moving the mould into a cooler to cool quickly after the thermal curing is finished, cooling for 4-5 minutes, and opening the mould to normal temperature to obtain the solid racket primary blank.
Example 2
On the basis of the embodiment 1, referring to fig. 1-5, the winding device in the second step comprises a mounting seat 1, a clamping assembly 2 for clamping the winding core is arranged at the top of the mounting seat 1, a winding assembly 3 for winding carbon fiber epoxy resin prepreg on the winding core is further arranged at the top of the mounting seat 1, and the clamping assembly 2 and the winding assembly 3 are controlled by a driving clutch mechanism 4 to work.
The clamping assembly 2 comprises a mounting ring 21 fixed at the top of the mounting seat 1, a stable mounting foundation is provided, the mounting ring is mounted at the top of the mounting seat 1 through bolts, an annular frame 22 is rotatably connected to the inner surface of the mounting ring 21, the annular frame 22 can rotate around the central axis of the mounting ring, one side of the mounting ring 21 is rotatably connected with three rotating rods 24 through rotating shafts 23, one ends of the three rotating rods 24 are rotatably connected with rollers 25, the rollers 25 are designed to be better contacted with winding cores, friction is reduced, uniform pressure is provided during clamping, and the clamping assembly is suitable for clamping winding cores with different sizes.
One side of the inner wall of the annular frame 22 is rotatably connected with three limiting blocks 26 through pin shafts, one ends of the three rotating rods 24 penetrate through the limiting blocks 26 and extend to the outer parts of the limiting blocks 26, and the outer surfaces of the three rotating rods 24 are slidably connected with the inner surfaces of the limiting blocks 26.
Through the setting of clamping assembly 2, realized the adaptability automatic clamp to the core of rolling up, satisfied the clamp to the core of rolling up of equidimension, conveniently press from both sides the tight core of rolling up after, convenient further cladding operation.
The winding assembly 3 comprises a fixing plate 31 fixed at the top of the mounting seat 1, an inner gear ring 32 is fixed at the top of the fixing plate 31, a first gear 33 is rotationally connected to the center inside the inner gear ring 32, three second gears 34 are rotationally connected to the inner gear ring 32, the three second gears 34 are meshed with the inner gear ring 32 and the first gear 33, a through pipe 35 is fixed inside the three second gears 34, two ends of the through pipe 35 are of an open design, and the carbon fiber epoxy resin prepreg ribbon material is conveniently wound after passing through the through pipe 35.
Through the setting of winding component 3, realized the automation with carbon fiber epoxy prepreg winding cladding on the core, need not manual operation, promoted the efficiency of winding cladding by a wide margin.
The driving clutch mechanism 4 comprises a vertical plate 41 fixed at the top of the mounting seat 1, one side of the vertical plate 41 is rotationally connected with a connecting rod 42, one end of the connecting rod 42 is fixed with one side of the first gear 33, one side of the vertical plate 41 is rotationally connected with a driving rod 43, one ends of the connecting rod 42 and the driving rod 43 penetrate through the vertical plate 41 and extend to the outside of the vertical plate 41, one end of the connecting rod 42 and the outer surface of the driving rod 43 are both fixed with belt pulleys 44, and the two belt pulleys 44 are in transmission connection through a belt 45.
A transverse plate 46 is fixed on one side of the vertical plate 41, a motor 47 is fixed on the transverse plate 46, the motor 47 is a three-phase asynchronous motor, forward and reverse rotation can be carried out, the motor is controlled by an external switch and is electrically connected with an external power supply, the motor 47 drives a driving rod 43 to rotate, an outer gear ring 48 is fixed on one side of the annular frame 22, a gear III 49 is arranged on one side of the outer gear ring 48, the gear III 49 is meshed with the outer gear ring 48, a circular groove 410 is formed in the gear III 49 in a penetrating mode, four clamping grooves 411 are formed in the inner wall of the circular groove 410, and a clutch block 412 is connected to the driving rod 43 in a sliding mode.
The surface of clutch block 412 is fixed with four fixture blocks 413, the length of fixture block 413 is less than the length of clutch block 412, the surface of clutch block 412 rotates with the internal surface of circular slot 410 to be connected, two spacing grooves 414 have all been seted up to the inside of clutch block 412 to one side of four fixture blocks 413 all extend to the inside of draw-in groove 411, the top and the bottom of actuating lever 43 all are fixed with spacing 416, two spacing 416 all extend to the inside of spacing groove 414, and the surface of spacing 416 and the internal surface sliding connection of spacing 414, the setting of spacing 416, actuating lever 43 can drive the synchronous rotation of clutch block 412 when rotating, one side of clutch block 412 is fixed with handle 415.
Through the setting of drive clutch mechanism 4, realized the fast linkage separation and reunion between clamping assembly 2 and winding subassembly 3 to realized the effect that a motor 47 drove clamping assembly 2 and winding subassembly 3 work, when not needing to use clamping assembly 2, enable clutch block 412 in time and three 49 separation of gear, and then make winding subassembly 3 independently twine the work, both linkage nature is strong, can carry out the separation and reunion fast again, convenient operation has promoted work efficiency by a wide margin.
Example 3
On the basis of embodiment 2, see fig. 1 and 6, the hot pressing device in step five includes base 5, the top of base 5 is fixed with shaping seat 6, place the mould in the shaping seat 6 during hot pressing, be used for forming racket shape in the hot pressing process, the top of base 5 is fixed with mounting bracket 7, the top of mounting bracket 7 is fixed with cylinder 8, cylinder 8 receives external switch control, and with external power electric connection, the output of cylinder 8 is fixed with movable plate 9, the hot pressboard 10 is installed to the bottom of movable plate 9, cylinder 8 is the power supply of hot pressing device, through the piston rod of control cylinder flexible, drive movable plate 9 and hot pressboard 10 reciprocate, hot pressboard 10 is the key part of hot pressing device, it direct contact and compression material, accomplish hot pressing.
And all that is not described in detail in this specification is well known to those skilled in the art.
When the racket is in operation, the winding core is placed in the mounting ring 21, the motor 47 is started, the motor 47 drives the driving rod 43 to rotate, the driving rod 43 drives the clutch block 412, the third gear 49, the outer gear ring 48 and the annular frame 22 to rotate, meanwhile, the annular frame 22 drives the limiting block 26 to move, the limiting block 26 slides along the outer surface of the rotating rod 24, the limiting block 26 further drives the rotating rod 24 to rotate, the three rollers 25 move inwards to tighten up, finally the winding core is clamped, the motor 47 is closed after clamping, the handle 415 is pulled, the handle 415 drives the clutch block 412 to slide, finally the clamping block 413 slides out of the clamping groove 411, separation of the driving rod 43 and the third gear 49 can be achieved, at the moment, the motor 47 is started again, the motor 47 drives the clutch block 412 to rotate in the third gear 49, the first gear 33 to rotate, the first gear 33 drives the second gear 34 to revolve around the first gear 33, the carbon fiber epoxy resin prepreg is cut Cheng Daizhuang, the carbon fiber epoxy resin prepreg is clamped on the winding core by the rollers 25, the carbon fiber epoxy resin is coated on the winding core when the second gear 34 rotates, the thermal pressing cylinder seat is required to be placed in the thermal pressing cylinder seat for molding, and the racket is required to be moved under the thermal pressing, and the racket molding is required to be moved under the thermal pressing cylinder seat 8.
The foregoing detailed description of the embodiments of the invention has been provided for the purpose of illustrating the preferred embodiments of the invention and is not to be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. A preparation process of a solid shock-absorbing racket blank is characterized by comprising the following steps:
cutting a solid expansion filling material and a carbon fiber epoxy resin prepreg according to the size of the racket structure;
Spreading the carbon fiber epoxy resin prepreg, pre-placing a solid expansion filling material between carbon fiber epoxy resin prepreg interlayers, sleeving a plastic film outside a winding core, pumping air in the plastic film tube by using a vacuum pump to tightly attach the inner wall of the plastic film tube to the winding core, and winding the carbon fiber epoxy resin prepreg which is completely spread and is pre-placed with the solid expansion filling material on the plastic film tube through winding equipment to form a cylinder;
Stopping vacuumizing, fixing the plastic film tube at one end of the winding core, and then fixing the cylindrical carbon fiber prepreg by one hand, withdrawing the winding core by the other hand, and withdrawing the plastic film tube in sequence, namely, winding the plastic film tube into a carbon fiber epoxy resin prepreg tube;
Fourthly, rolling the carbon fiber epoxy resin prepreg tube by a roller mill to exhaust air, tightly attaching layers, improving the strength of the racket, folding and sealing openings at two ends by using the carbon fiber epoxy resin prepreg, connecting the carbon fiber epoxy resin prepreg tube with a middle rod of the racket, wrapping and reinforcing the carbon fiber prepreg tube at the connecting part to form a racket shape, and fixing the manufactured preassembled racket frame on an elliptical jig to smooth the carbon fiber, so that the strength of the racket is prevented from being influenced by wrinkles;
And fifthly, placing the preassembly into a mould and closing the mould, moving the mould into hot pressing equipment, rapidly heating the mould, expanding and enlarging a solid expanding filling material preset in a carbon fiber prepreg interlayer in the mould by heating, rapidly solidifying and shaping the carbon fiber epoxy resin prepreg under the expansion pressure and the limiting action of a mould cavity, moving the mould into a cooler for cooling after the heat solidification is finished, and opening the mould to normal temperature to obtain the solid racket primary blank.
2. The manufacturing process of the solid shock-absorbing racket blank according to claim 1, wherein the winding equipment in the second step comprises an installation seat (1), a clamping assembly (2) for clamping a winding core is arranged at the top of the installation seat (1), a winding assembly (3) for winding carbon fiber epoxy resin prepreg on the winding core is further arranged at the top of the installation seat (1), and the clamping assembly (2) and the winding assembly (3) are controlled by a driving clutch mechanism (4) to work.
3. The process for preparing the solid shock-absorbing racket blank according to claim 2, wherein the clamping assembly (2) comprises a mounting ring (21) fixed at the top of the mounting seat (1), an annular frame (22) is rotatably connected to the inner surface of the mounting ring (21), three rotating rods (24) are rotatably connected to one side of the mounting ring (21) through a rotating shaft (23), and rollers (25) are rotatably connected to one ends of the three rotating rods (24).
4. The process for preparing the solid shock-absorbing racket blank according to claim 3, wherein one side of the inner wall of the annular frame (22) is rotatably connected with three limiting blocks (26) through pin shafts, one ends of the three rotating rods (24) penetrate through the limiting blocks (26) and extend to the outer parts of the limiting blocks (26), and the outer surfaces of the three rotating rods (24) are slidably connected with the inner surfaces of the limiting blocks (26).
5. The manufacturing process of the solid shock-absorbing racket blank according to claim 2, wherein the winding assembly (3) comprises a fixing plate (31) fixed at the top of the mounting seat (1), an inner gear ring (32) is fixed at the top of the fixing plate (31), a gear I (33) is rotatably connected to the center of the inner gear ring (32), three gears II (34) are rotatably connected to the inner gear ring (32), the gears II (34) are meshed with the inner gear ring (32) and the gears I (33), and a through pipe (35) is fixed inside the gears II (34).
6. The manufacturing process of the solid shock-absorbing racket blank according to claim 3, wherein the driving clutch mechanism (4) comprises a vertical plate (41) fixed at the top of the mounting seat (1), one side of the vertical plate (41) is rotationally connected with a connecting rod (42), one end of the connecting rod (42) is fixed with one side of a gear I (33), one side of the vertical plate (41) is rotationally connected with a driving rod (43), one ends of the connecting rod (42) and the driving rod (43) penetrate through the vertical plate (41) and extend to the outside of the vertical plate (41), one end of the connecting rod (42) and the outer surface of the driving rod (43) are both fixed with belt pulleys (44), and the two belt pulleys (44) are in transmission connection through a belt (45).
7. The manufacturing process of the solid shock-absorbing racket blank according to claim 6, wherein a transverse plate (46) is fixed on one side of the vertical plate (41), a motor (47) is fixed on the transverse plate (46), the motor (47) drives a driving rod (43) to rotate, an outer gear ring (48) is fixed on one side of the annular frame (22), a gear III (49) is arranged on one side of the outer gear ring (48), the gear III (49) is meshed with the outer gear ring (48), round grooves (410) are formed in the gear III (49) in a penetrating mode, four clamping grooves (411) are formed in the inner wall of the round grooves (410), and clutch blocks (412) are connected to the driving rod (43) in a sliding mode.
8. The manufacturing process of the solid shock-absorbing racket blank according to claim 7, wherein four clamping blocks (413) are fixed on the outer surface of the clutch block (412), the outer surface of the clutch block (412) is rotationally connected with the inner surface of the circular groove (410), one sides of the four clamping blocks (413) are all extended to the inside of the clamping groove (411), two limit grooves (414) are formed in the clutch block (412), limit strips (416) are fixed on the top and the bottom of the driving rod (43), the two limit strips (416) are all extended to the inside of the limit grooves (414), the outer surface of the limit strips (416) is in sliding connection with the inner surface of the limit grooves (414), and a handle (415) is fixed on one side of the clutch block (412).
9. The manufacturing process of the solid shock-absorbing racket blank according to claim 1, wherein the hot pressing device in the fifth step comprises a base (5), a forming seat (6) is fixed at the top of the base (5), a mounting frame (7) is fixed at the top of the base (5), an air cylinder (8) is fixed at the top of the mounting frame (7), a movable plate (9) is fixed at the output end of the air cylinder (8), and a hot pressing plate (10) is installed at the bottom of the movable plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410888438.1A CN118636498B (en) | 2024-07-04 | 2024-07-04 | Processing method of racket blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410888438.1A CN118636498B (en) | 2024-07-04 | 2024-07-04 | Processing method of racket blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118636498A CN118636498A (en) | 2024-09-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61261033A (en) * | 1985-05-14 | 1986-11-19 | Sumitomo Electric Ind Ltd | Method for manufacturing a perforated sandwich cylinder made of fiber-reinforced plastics |
| JP2004202001A (en) * | 2002-12-26 | 2004-07-22 | Mizuno Corp | Racket frame |
| AT413678B (en) * | 2003-05-30 | 2006-04-15 | Greiner Perfoam Gmbh | Production of sandwich structures comprises producing pre-molding by enclosing core in foamable fiber-plastic mixture and applying heat or pressure in mold |
| CN101590314A (en) * | 2009-06-18 | 2009-12-02 | 徐建昇 | Manufacturing method of fiber racket frame |
| CN103272374B (en) * | 2013-06-07 | 2015-10-07 | 南京胜利体育用品实业有限公司 | Manufacturing method of badminton racket |
| CN108127938A (en) * | 2017-12-20 | 2018-06-08 | 陈锦松 | Integrated forming process for air bag of carbon fiber workpiece mandrel |
| CN112704861B (en) * | 2020-12-07 | 2022-04-19 | 李宁（中国）体育用品有限公司 | Manufacturing method of badminton racket and badminton racket |
| CN116442427A (en) * | 2023-03-28 | 2023-07-18 | 苏州华基新材料科技有限公司 | SMC carbon fiber forging line prepreg |
| CN116787822A (en) * | 2023-07-05 | 2023-09-22 | 江苏源威新材料科技有限公司 | A method of making a badminton racket |
| CN118205233A (en) * | 2024-04-29 | 2024-06-18 | 飞荣达科技(江苏)有限公司 | Low dielectric foam sandwich composite material forming method |
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