CN1081960A

CN1081960A - The manufacture method of racket frame with compound plastics

Info

Publication number: CN1081960A
Application number: CN 92109179
Authority: CN
Inventors: 尤景三
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-31
Filing date: 1992-07-31
Publication date: 1994-02-16

Abstract

A kind of manufacture method of racket frame with compound plastics, its step is as follows: take pipe in the resistant to elevated temperatures pliability; Thermoplastic plastic's film long fibre plate is wound in regular turn forms a tube on the surface of this soft light wall pipe; This tube is inserted in the die cavity of mould; This mould is heated and the first road gas-pressurized is introduced in this tube; After carrying out a period of time, abovementioned steps introduces in this tube with the second road gas-pressurized; Force its exterior layer shell can closely fit in the cave wall of die cavity; Again this mold cools down can be made a tool plastic composite material at last, and can not cause the racket frame of environmental pollution.

Description

The manufacture method of racket frame with compound plastics

The present invention relates to a kind of manufacture method of racket frame, particularly relating to a kind of is base material with thermoplastic plastic, is the method for the plastic composite material making racket frame of Rankine with the long fibre material.

As everyone knows, the exterior layer shell major part of racket frame with compound plastics all is to form with the stacked in regular turn coiling of the long fibre plate of many pre-epoxy resin dippings at present, though this exterior layer shell can make racket frame have light weight, high-intensity advantage, but epoxy resin is not easy to reclaim after curing, can cause great environmental issue, and each fibre bundle of long fibre textile board is when pre-epoxy resin dipping, epoxy resin must reduce its viscosity with the volatile diluent of tool, usually these diluents belong to noxious material, can damage human body when it volatilizees in air; Moreover the long fibre textile board is affixed on its most long fibre wrappings on one strippable paper when moulding, during use, it is torn off again, and these strippable papers promptly form waste material once tearing off, and not only pollutes the environment but also wastes resource.

Therefore, main purpose of the present invention is to overcome above-mentioned shortcoming, and a kind of manufacture method of racket frame with compound plastics is provided, and it can be possessed the advantage of plastic composite material but can not cause problem of environmental pollution.

Another object of the present invention provides a kind of manufacture method of racket frame with compound plastics, and there is not the problem that forms waste material in it.

For reaching above-mentioned purpose, the manufacture method of the racket frame with compound plastics that the present invention proposes, its plastic composite material is base material with thermoplastic plastic, with the long fibre material is Rankine, and its feature then is to include the following step: (a) take in the pliability made from high temperature resistant material and manage; (b), and form a multi-lamellar tube on the surface of pipe in stacked in regular turn being wound in of long fibre plate that be combined into by most long fibre bundles of one deck at least with one deck at least thermoplastic plastic's film of curing molding; (c) this tube is inserted in the die cavity of mould; (d) can make the temperature of this thermoplastic plastic's thin layer fusion to this mold heated with one, and, use so that this thermoplastic plastic's thin layer melts and infiltrates equably at suitable pressures between each adjacent long fibre bundle of this long fibre textile board layer with the inside that the gas-pressurized of tool first predetermined pressure is introduced this tube; (e) after abovementioned steps is carried out one period scheduled time, the gas-pressurized of tool second predetermined pressure is introduced this tube inside, second predetermined pressure is greater than first predetermined pressure, fits tightly in order to the exterior layer shell that forces this tube and the die cavity wall of mould; (f) cooling die is with so that permeate in the melting thermoplastic plastic of each adjacent long fibre interfascicular of long fibre flaggy and solidify, and so this tube promptly forms a racket frame according to the shape moulding of die cavity.

By aforesaid manufacture method as can be known, the present invention does not need to make the long fibre textile board with strippable paper, thereby does not promptly have the waste material problem of non-environmental-pollution again; Do not need to reduce the viscosity of base material, so in manufacture process, can not damage to human body with the volatile diluent of tool; Moreover the thermoplastic plastic promptly can be the melting state after being heated to uniform temperature, thereby it is easy to make behind the finished product on reclaiming more heat cured epoxy resin.

Now enumerate some preferred embodiments of the present invention and conjunction with figs. below and be described further, wherein:

Fig. 1 is the manufacturing flow chart of a preferred embodiment of the present invention;

Fig. 2 rolls into the schematic perspective view of tube for a preferred embodiment of the present invention;

Fig. 3 inserts the interior schematic perspective view of mould die cavity for a preferred embodiment of the present invention tube;

The racket frame stereogram of Fig. 4 for making according to a preferred embodiment of the present invention;

Fig. 5 is the part three-dimensional cutaway view of the tube of another preferred embodiment of the present invention;

Fig. 6 is the present invention's schematic perspective view that its thermoplastic plastic's thin layer forms with anti-grand tape wrapping in the preferred embodiment again;

Fig. 7 is netted schematic perspective view for the surface of its thermoplastic plastic's thin layer in the another preferred embodiment of the present invention;

See also each accompanying drawing, the manufacture method of a preferred embodiment of the present invention at first is to take one by the made interior pipe 10 of resistant to elevated temperatures material (as silastic), pipe 10 surface is covered one and is multi-lamellar exterior layer shell 20 in this then, the four

layer film

21,23,25 and 27 by anti-grand six (a kind of trade names of polyamide) made of this exterior layer shell 20 for stacking together in regular turn, and three layers of fiber orientation be respectively+30 °, 0 °-30 ° carbon fiber

textile board layer

22,24, and 26.

Carbon fiber

textile board layer

22,24 and the 26 long carbon fiber bundles with majority twine in advance respectively according to needed fiber orientation and are affixed on each

thin layer

21,23, on 25, the side of changing it, promptly, the first carbon fiber textile board layer 22 twines and is affixed on the first film layer 21 and forms the first retable glue composite layer 30, the second carbon fiber textile board layer 24 twines and is affixed on second thin layer 23 and forms the second retable glue composite layer 32, the 3rd carbon fiber textile board layer twines and is affixed on the 3rd thin layer 25 and forms the 3rd retable glue composite layer 34, aforementioned each retable

glue composite layer

30,32 and 34 are wound in the surface of interior pipe 10 more in regular turn, then be coated on the 4th thin layer 27 at last, so promptly constitute a tube 40 in outermost.

After tube 40 is made it is inserted in the die cavity 44 of a mould 42, this die cavity 44 is the shape of racket frame, and then mould 42 being heated to 220 ° is 1～3kg/mm with pressure simultaneously ²The first road gas-pressurized introduce this tube 40 inside, at this moment, each

flexible film

21,23,25 and 27 will be melting state and pressurized gas and urge and infiltrate equably between each fibre bundle of each carbon fiber

textile board layer

22,24 and 26, treating that this step carried out about 5 minutes, is 5～10kg/mm with pressure again ²The second road gas-pressurized introduce in the tube 40, with so that the thermoplastic plastic of fusion can infiltrate each long fibre interfascicular more completely.

After abovementioned steps is implemented about 10 minutes, be 10～15kg/mm with pressure again ²The 3rd road gas-pressurized introduce this tube 40 inside, at this moment, each carbon fiber

textile board layer

22,24 and 26 together with the infiltration each long fibre interfascicular the anti-grand raw materials of melting will closely be fitted on the cave wall of die cavity 44 by urging of the 3rd road gas-pressurized.

At last, cooling die 40, these permeate anti-grand raw material between each carbon

fiber textile board

22,24 and 26 each fibre bundle and will solidify and make tube 40 form a racket frame 50 according to die cavity 44 moulding.

See also Fig. 5 again, 6 and 7, the tube 60 of another preferred embodiment of the present invention is made of the exterior layer shell 64 that pipe 62 and in the resistant to elevated temperatures pliability is coated on pipe 62 surfaces in this, this exterior layer shell 64 when making, take by anti-grand six make first, second, and the

3rd film tube

70,72 and 74 and overlap in regular turn by first,

second fibre pipe

73,75 that most carbon fiber bundles braidings form and to manage in being through on 62 the surface (as shown in Figure 5).In addition, in the present invention again in the preferred embodiment, each thin layer 82 of its exterior layer shell 80 also can the tool preset width and is become the anti-grand tape wrapping of web-like to form (as shown in Figure 6).In the another preferred embodiment of the present invention, each thin layer 92 of its exterior layer shell 90 can also whole the surface be netted Nai Longbu and reel and form (as shown in Figure 7).

By as can be known aforementioned, the racket frame made according to the inventive method will similarly have light weight, high-intensity advantage, be to be base material with thermoplastic plastic so because of it, so when the finished product desire reclaims, need only to racket frame 50 heat to this thermoplastic plastic's fusing point can be easily that it is inner the thermoplastic plastic separate and reclaim, and, also non-ly in manufacture process base material and Rankine are combined with each other, therefore do not have the problem generation that injure human body because of the diluent volatilization in the impregnation mode; Moreover, since its be with in a tubular form or open-shaped anti-grand film do base material, so these base materials also can be simultaneously make to be used for twining as strippable paper and paste the long fibre bundle and form textile board, produce so not only can reduce manufacturing cost but also not have waste material.

Claims

1, a kind of manufacture method of racket frame with compound plastics, its plastic composite material are base material with thermoplastic plastic, are Rankine with the long fibre material, and this manufacture method is characterised in that and includes following steps:

(a) take in the pliability made from high temperature resistant material and manage;

(b) with one deck at least thermoplastic plastic's film of curing molding, and the long fibre textile board that is made of most long fibre bundles of one deck is stacked in regular turn at least is wound in the pliability on the tube-surface and forms a multi-lamellar tube;

(c) this tube is inserted in the die cavity that mould puts;

(d) can make the temperature of this thermoplastic plastic's film melts to this mold heated with one, and introduce in this tube with the gas-pressurized of tool first predetermined pressure, with so that this thermoplastic plastic's thin layer fusing and can infiltrating equably under this pressure between each adjacent long fibre bundle of this long fibre textile board layer;

(e) after abovementioned steps is carried out one period scheduled time, the gas-pressurized of tool second predetermined pressure is introduced this tube inside, this second predetermined pressure is greater than first predetermined pressure, fits tightly in order to the exterior layer shell that forces this tube and the die cavity cave wall of mould;

(f) cool off this mould with so that permeate in the melting thermoplastic plastic of this each adjacent long fibre interfascicular of long fibre textile board layer and solidify, this tube promptly forms a racket frame according to this die cavity shape moulding.

2, according to the described manufacture method of claim 1, it is characterized in that it also includes one between (d) and (e) (d ') step between step, this step is to introduce in this tube with the gas-pressurized of tool the 3rd predetermined pressure, the 3rd predetermined pressure is between first and second predetermined pressure, with making the exterior layer shell of this tube be adjacent to the die cavity wall again so that the thermoplastic plastic of melting can infiltrate each adjacent long fibre interfascicular more equably.

3, according to the described manufacture method of claim 1, it is characterized in that the thin unconcerned layer of this thermoplastic plastic is open-shaped, this long fibre textile board layer then makes its each long fibre bundle twine in advance with predetermined trend and is affixed on this open-shaped thermoplastic plastic's thin layer, and then is wound on the surface of plastic cement light wall pipe.

4, according to the described manufacture method of claim 1, it is characterized in that: thermoplastic plastic's thin layer and this long fibre textile board layer all are elongated tubular and are set in regular turn on the surface of this plastic cement light wall pipe.

5, according to the described manufacture method of claim 1, it is characterized in that: thermoplastic plastic's thin layer is banded.

6, according to the described manufacture method of claim 1, it is characterized in that: the surface of thermoplastic plastic's thin layer is netted.

7, according to the described manufacture method of claim 1, it is characterized in that: the outermost layer of tube is thermoplastic plastic's thin layer.

8, according to the described manufacture method of claim 1, it is characterized in that: thermoplastic plastic's thin layer is made with polyamide.