CN201971105U - Preforming device of non-stress concentration composite fiber tube for bicycle - Google Patents
Preforming device of non-stress concentration composite fiber tube for bicycle Download PDFInfo
- Publication number
- CN201971105U CN201971105U CN2011200671760U CN201120067176U CN201971105U CN 201971105 U CN201971105 U CN 201971105U CN 2011200671760 U CN2011200671760 U CN 2011200671760U CN 201120067176 U CN201120067176 U CN 201120067176U CN 201971105 U CN201971105 U CN 201971105U
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- outer core
- core material
- interlocking group
- dovetail block
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- 239000000835 fiber Substances 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title abstract 5
- 239000004744 fabric Substances 0.000 claims abstract description 35
- 239000000203 mixture Substances 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 239000011162 core material Substances 0.000 abstract description 163
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000741 silica gel Substances 0.000 abstract description 6
- 229910002027 silica gel Inorganic materials 0.000 abstract description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 7
- 239000004917 carbon fiber Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model relates to a preforming device of a non-stress concentration composite fiber tube for a bicycle, which comprises a core material unit and composite fiber prepreg cloth, wherein the core material unit comprises an inner core material and a plurality of outer core materials which are installed outside the inner core material, the inner core material and each outer core material are mutually connected through an embedding group arranged along an axial direction, and the composite fiber prepreg cloth is coated outside the outer core material. The inner core material is firstly drawn out to ensure that the outer core material is provided with an internal shrinking space, and further the outer core material can be completely drawn out of the composite fiber prepreg cloth smoothly to obtain a preforming product, then a highly flexible silica gel bag is placed into the preforming product for forming work; because no lap joint is available in the preforming product, stress concentration is not generated, the structural strength of the tube can be increased, the tube weight can be reduced, and the production efficiency can be improved.
Description
Technical field
The utility model relates to a kind of bicycle tubing, particularly relates to the pre-type device of the unstressed concentrated composition fiber tubing of a kind of bicycle use.
Background technology
Carbon fiber bicycle vehicle frame 10 as shown in Figure 1 comprises manages 11 on one, manage 12 once, a pipe 13, a pipe 14, one five-way joint 15, one Seat stay 16 and a Chain stay 17, with regard to the described pipe 11 of going up, under manage 12, head pipe 13, seat pipe 14 these tubing, as shown in Figure 2, its manufacturing step is according to the needed profile of each tubing, angle is carried out carbon fibre initial rinse fabric cut-parts operation earlier, then the core that the carbon fibre initial rinse fabric cut-parts is coated on each tubing carries out pre-type coiled strip outward, and the pre-type of each pipe fitting of vehicle frame gone out soft hollow tube, when carrying out the adapter operation of each hollow tube, must be earlier with the core in each pipe fitting in the hollow tube after out of the ordinary extraction the out, hollow tube outer most surrounding in each adapter pastes carbon fibre initial rinse fabric again, this is for increasing the steps necessary of pipe fitting lap-joint reinforcement, with the Strengthening bicycle frame rigidity, then again airbag is penetrated the inside of hollow tube, and plug valve in the open end, see through the pressurization of blowing then, each hollow tube is produced jointless one-body molded carbon fiber bicycle frame, though this kind design also can be produced one-body molded vehicle frame after moulding, still carry out during pre-type with pipe-connecting mode.Pre-type pipe-connecting mode allows the discontinuous generation breakpoint of fiber except meeting, and taking over also can increase unnecessary material weight and material cost, causes more that pre-type is time-consuming to be increased with human cost, and also have the quality of adapter unstable with adapter place problem of stress concentration.
Existing a kind of design of core being extracted out preimpregnation cloth, but because preimpregnation cloth contains resin, and the friction force between the core is very big, guarantee simultaneously that in order smoothly core to be extracted out pre-type product is indeformable, that can only reduce core is coated area, generally be to reach this purpose in the mode that shortens core length, but must continuing preimpregnation cloth vertically, this mode just can meet the length requirement of tubing, as Fig. 3, shown in Figure 4, during manufacturing, prepare several first cores 21 earlier, second core 22, outside this first core 21, coat several layers first preimpregnation cloth 23 then, outside this second core 21, coat several layers second preimpregnation cloth 24, and the end face 231 of the described first preimpregnation cloth 23 is ladder unfairness shape, the end face 241 of the described second preimpregnation cloth 24 also is ladder unfairness shape, after the pre-type of each section is finished respectively with this first core 21, this second core 22 is extracted out vertically, then with described end face 231,241 overlap joints, outside lap-joint 25, paste a connection paster 26 then and become a pre-type product 27, afterwards with in a Nylon Bag (figure does not show) this pre-type product 27 of packing into, insert again and carry out the pressurized, heated operations for forming in the mould, just can make a carbon fiber bicycle frame, this kind mode and solid foamed core material are relatively, can alleviate tubing weight though have, the characteristic that reduces production costs, but still there is following shortcoming:
One, the lap-joint 25 of this pre-type product 27 very easily causes stress concentration, causes the tubing overall construction intensity not good.
Two, because when overlapping, this first core 21, this second core 22 are extracted out, this moment the described first preimpregnation cloth 23, be with the second preimpregnation cloth 24 is non-that hard attitude is very easily softening to produce distortion, not only overlap operational difficulty and cause production efficiency poor, the profile that also very easily influences this pre-type product 27 reduces the moulding yield of carbon fiber bicycle frame.
Three, because this first core 21, this second core 22 are extracted out, make the described first preimpregnation cloth 23, be hard attitude with the second preimpregnation cloth 24 is non-, to outside described lap-joint 25, paste this connection paster 26 in the case, can cause the distortion probability of this pre-type product 27 to increase, reduce the moulding yield of carbon fiber bicycle frame because of pasting the application of force.
Four, with regard to this vehicle frame 10, with aforementioned manufacture method, should go up between pipe 11 and this pipe 13 and this five-way joint 15 and have first joint 181, second joint 182, have the 3rd joint 183, the 4th joint 184 between this time pipe 12 and this pipe 13 and this five-way joint 15, have the 5th joint 185 between this pipe 14 and this five-way joint 15, and described lap-joint 25, it is more to have joint, causes these vehicle frame 10 overall construction intensity not good.
Another core is made with solid foaming material, the core of this pre-type product after pre-type is finished need do not extracted out outside the preimpregnation cloth, so can make the fiber in each layer of pre-type product preimpregnation cloth continuous, has the characteristic that can increase pipe structure intensity, can't repeated usage but there is core, productive costs is higher, and the heavier shortcoming of pre-type product overall weight.
Summary of the invention
The purpose of this utility model be provide a kind of structural strength that can increase tubing, can expendable weight, can enhance productivity and can improve the pre-type device of the unstressed concentrated composition fiber tubing of bicycle use of tube forming yield.
The pre-type device of the utility model bicycle use is unstressed concentrated composition fiber tubing comprises a core unit and a composition fiber preimpregnation cloth;
This core unit comprises core in, and installation kit is trapped among several outer outer cores of core in this, in this core with each prop up between outer core respectively by one vertically the interlocking group of setting combine, described outer core has one respectively by coating face;
This composition fiber preimpregnation cloth is coated on described by outside the coating face.
The pre-type device of bicycle use described in the utility model is unstressed concentrated composition fiber tubing, should interior core be the quadrangle body, the quantity of described outer core is four, be respectively one first outer core, one second outer core, one the 3rd outer core, one core all round, mutually combine by one first interlocking group between core and this first outer core in being somebody's turn to do, mutually combine by one second interlocking group between core and this second outer core in being somebody's turn to do, should in mutually combine by one the 3rd interlocking group between core and the 3rd outer core, this interior core and this mutually combines by one the 4th interlocking group between the core all round.
The pre-type device of bicycle use described in the utility model is unstressed concentrated composition fiber tubing, this first interlocking group has first lweis hole that is arranged at core in this, and corresponding first dovetail block that is arranged at this first outer core, this second interlocking group has second lweis hole that is arranged at core in this, and corresponding second dovetail block that is arranged at this second outer core, the 3rd interlocking group has the 3rd lweis hole that is arranged at core in this, and corresponding the 3rd dovetail block that is arranged at the 3rd outer core, the 4th interlocking group has the 4th lweis hole that is arranged at core in this, and corresponding this 4th dovetail block of core all round that is arranged at.
The pre-type device of bicycle use described in the utility model is unstressed concentrated composition fiber tubing, this first interlocking group has first dovetail block that is arranged at core in this, and corresponding first lweis hole that is arranged at this first outer core, this second interlocking group has second dovetail block that is arranged at core in this, and corresponding second lweis hole that is arranged at this second outer core, the 3rd interlocking group has the 3rd dovetail block that is arranged at core in this, and corresponding the 3rd lweis hole that is arranged at the 3rd outer core, the 4th interlocking group has the 4th dovetail block that is arranged at core in this, and corresponding this 4th lweis hole of core all round that is arranged at.
The beneficial effects of the utility model are: by should extracting out by interior core earlier, can make this first outer core, this second outer core, the 3rd outer core, this space of contracting in core has all round, and then can smoothly this core unit be extracted out this composition fiber preimpregnation cloth and obtain a pre-type product, because this pre-type product does not have lap-joint, can not produce stress concentration, make the utility model can increase each tubing of composition fiber vehicle frame structural strength, can expendable weight and can enhance productivity.
Description of drawings
Fig. 1 is the front exploded view of existing carbon fiber bicycle vehicle frame;
Fig. 2 is the manufacturing flow chart of existing tubing;
Fig. 3 is the exploded cutaway view, shows the preceding state that coats carbon fibre initial rinse fabric outside first core, second core of existing tube forming;
Fig. 4 is the assembled sectional view of existing pre-type product;
Fig. 5 is the forward sight partial exploded view of the pre-type device preferred embodiment of the unstressed concentrated composition fiber tubing of the utility model bicycle use;
Fig. 6 is the cutaway view of this preferred embodiment;
Fig. 7 is the view of similar Fig. 6, shows the state of extracting core in out;
Fig. 8 is the view of similar Fig. 7, shows to extract a core unit out state that the back obtains a pre-type product.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated:
As Fig. 5, shown in Figure 6, the pre-type device preferred embodiment of the utility model bicycle use is unstressed concentrated composition fiber tubing comprises a reusable core unit 40 and a composition fiber preimpregnation cloth 50.
What described tubing can be cycle frame 30 shown in Figure 5 goes up pipe 31 or pipe 32 or seat pipe 34 down.
This core unit 40 comprises core 41 in, and installation kit is trapped among several outer cores outside the core 41 in this, should between core 41 and each outer core respectively by one vertically the interlocking group of setting combine, described outer core has one respectively and is combined into the shape (see figure 8) of a pre-type product 500 by coating face.
Should interior core 41 be the quadrangle body in the present embodiment, the quantity of described outer core should be four relatively, be respectively the outer core of the outer core of one first outer core 42, one second 43, the 3rd 44, one core 45 all round, and this first outer core 42, this second outer core the 43, the 3rd outer core 44, the length of core 45 is approximately identical with the length of tubing all round for this, but the shape of core 41 is not limited in being somebody's turn to do, and the quantity of described outer core also can correspondingly change.In fact should be not limited to the quadrangle body in interior core 41 cross sections, and can be pentagon body, circle or other shape, this outer core number also is not limited to four, can be according to the demand of being somebody's turn to do interior core 41 shapes as three, five, six ... Deng.
Mutually combine by one first interlocking group 46 between core 41 and this first outer core 42 in being somebody's turn to do, this first interlocking group 46 has first lweis hole 461 along the axial setting of being somebody's turn to do interior core 41, and corresponding first dovetail block 462 that is arranged at this first outer core 42, what deserves to be explained is that this first interlocking group 46 also can be a corresponding combination that is arranged at first lweis hole of this first outer core 42 with of first dovetail block that is arranged at core 41 in this.
Mutually combine by one second interlocking group 47 between core 41 and this second outer core 43 in being somebody's turn to do, this second interlocking group 47 has second lweis hole 471 along the axial setting of being somebody's turn to do interior core 41, and corresponding second dovetail block 472 that is arranged at this second outer core 43, what deserves to be explained is that this second interlocking group 47 also can be a corresponding combination that is arranged at second lweis hole of this second outer core 43 with of second dovetail block that is arranged at core 41 in this.
Mutually combine by one the 3rd interlocking group 48 between core 41 and the 3rd outer core 44 in being somebody's turn to do, the 3rd interlocking group 48 has the 3rd lweis hole 481 along the axial setting of being somebody's turn to do interior core 41, and corresponding the 3rd dovetail block 482 that is arranged at the 3rd outer core 44, what deserves to be explained is that the 3rd interlocking group 48 also can be a corresponding combination that is arranged at the 3rd lweis hole of the 3rd outer core 44 with of the 3rd dovetail block that is arranged at core 41 in this.
Should in core 41 and this mutually combine by one the 4th interlocking group 49 between the core 45 all round, the 4th interlocking group 49 has the 4th lweis hole 491 along the axial setting of being somebody's turn to do interior core 41, and corresponding this 4th dovetail block 492 of core 45 all round that is arranged at, what deserves to be explained is that the 4th interlocking group 49 also can be one and is arranged in this that the 4th dovetail block of core 41 is corresponding with one to be arranged at this combination of the 4th lweis hole of core 45 all round.
This first outer core 42, this second outer core the 43, the 3rd outer core 44, this all round core 45 respectively have one by coating face 421,431,441,451, describedly connected the shape (see figure 8) that is combined into corresponding this pre-type product 500 by coating face 421,431,441,451.
This composition fiber preimpregnation cloth 50 is coated on described by outside the coating face 421,431,441,451, and length is approximately identical with the length of tubing, and described fiber can be glass fibre, basalt fibre, boron fiber, Ke Weila fiber and other equipollents.
During use, as Fig. 6, Fig. 7, shown in Figure 8, should extract out vertically by interior core 41 earlier, this moment this first outer core 42, this second outer core the 43, the 3rd outer core 44, this contracts the space in core 45 has all round and can be drawn out of smoothly, and obtain the pre-type product 500 of a corresponding tubing shape, length, in this pre-type product 500, insert a high tenacity silica gel bag (figure does not show) then, insert and carry out pressurized, heated in the forming mould and just can make a bicycle use carbon fiber tubing, this tubing can be cycle frame 30 as shown in Figure 4.
Because the interior core 41 of this core unit 40 of the utility model, the first outer core 42, the second outer core 43, the 3rd outer core 44, all round core 45 can disassemble for independent component, after core in this 41 is extracted out vertically, this first outer core 42, this second outer core 43, the 3rd outer core 44, this the radially inwardly crumple of space of contracting in core 45 just has all round, add this first outer core 42, this second outer core 43, the 3rd outer core 44, this all round core 45 by coating face 421,431,441,451 areas are little, though so this first outer core 42, this second outer core 43, the 3rd outer core 44, the length of core 45 is approximately identical with the length of this tubing all round for this, but still can be smoothly with this first outer core 42, this second outer core 43, the 3rd outer core 44, this all round core 45 extract out and break away from these composition fiber preimpregnation cloth 50, and can not suffer from too big friction force, and then obtain a corresponding tubing shape, the pre-type product 500 of length can be guaranteed this pre-type product 500 indeformable damages simultaneously.
What deserves to be explained is that the utility model is made the vehicle frame use except providing, and also can provide the pre-types of bicycle spare part pipe fitting such as front fork, tap, crank, wheel rim, handle.
By above explanation as can be known, the pre-type device of the unstressed concentrated composition fiber tubing of the utility model bicycle use has following beneficial effect:
One, the utility model is by this core unit 40 this pre-type product 500 with these composition fiber preimpregnation cloth 50 compositions, do not need to overlap vertically this composition fiber preimpregnation cloth 50, do not exist so do not have the problem of stress concentration, can increase the overall construction intensity of tubing.
Two, the utility model is by the pre-type product 500 of this core unit 40 with these composition fiber preimpregnation cloth 50 compositions, do not need to overlap vertically this composition fiber preimpregnation cloth 50, do not have because of the overlap joint operation causes the problem of this pre-type product 500 distortion and exist, can enhance productivity and can improve the moulding yield of tubing.
Three, the utility model is by this core unit 40 this pre-type product 500 with these composition fiber preimpregnation cloth 50 compositions, do not need to overlap vertically this composition fiber preimpregnation cloth 50, do not need to paste the connection paster, can make the tubing profile good and can improve the moulding yield of tubing, and can alleviate tare.
Four, as shown in Figure 5, this pre-type product 500 that the utility model is formed by the compound composition fiber preimpregnation cloth 50 of this core unit 40 and this, can make going up of this vehicle frame 30 manage 31 with a pipe 32 and a pipe 33 are one-body molded down, make the seat pipe 34 of this vehicle frame 30 one-body molded with axle joint 35, so this vehicle frame 30 will only exist manage this on 31 and this pipe 34 between one first joint 301, one second joint 302 between this time pipe 32 and this axle joint 35 can reduce joint quantity, increase the overall construction intensity of this vehicle frame 30.
Five, the utility model is by inserting high tenacity silica gel bag in this pre-type product 500, then carry out operations for forming, carry out operations for forming again compared to general Nylon Bag of inserting or silica gel bag, high tenacity silica gel bag can be eliminated the advantage of each pipe material inner wall resin gauffer except possessing script silica gel or rubber, the characteristic of high tenacity also can increase reusability, can make thickness of pipe difference more average, allow inboard wall stress concentrate to reduce, resin distribution is even, reach the advantage that promotes composition fiber vehicle frame tubing quality.
Claims (4)
1. the pre-type device of the unstressed concentrated composition fiber tubing of bicycle use comprises a core unit and a composition fiber preimpregnation cloth, it is characterized in that:
This core unit comprises core in, and installation kit is trapped among several outer outer cores of core in this, in this core with each prop up between outer core respectively by one vertically the interlocking group of setting combine, described outer core has one respectively by coating face;
This composition fiber preimpregnation cloth is coated on described by outside the coating face.
2. the pre-type device of the unstressed concentrated composition fiber tubing of bicycle use according to claim 1 is characterized in that:
Should interior core be the quadrangle body, the quantity of described outer core is four, be respectively one first outer core, one second outer core, one the 3rd outer core, one core all round, mutually combine by one first interlocking group between core and this first outer core in being somebody's turn to do, mutually combine by one second interlocking group between core and this second outer core in being somebody's turn to do, should in mutually combine by one the 3rd interlocking group between core and the 3rd outer core, this interior core and this mutually combines by one the 4th interlocking group between the core all round.
3. the pre-type device of the unstressed concentrated composition fiber tubing of bicycle use according to claim 2 is characterized in that:
This first interlocking group has first lweis hole that is arranged at core in this, and corresponding first dovetail block that is arranged at this first outer core, this second interlocking group has second lweis hole that is arranged at core in this, and corresponding second dovetail block that is arranged at this second outer core, the 3rd interlocking group has the 3rd lweis hole that is arranged at core in this, and corresponding the 3rd dovetail block that is arranged at the 3rd outer core, the 4th interlocking group has the 4th lweis hole that is arranged at core in this, and corresponding this 4th dovetail block of core all round that is arranged at.
4. the pre-type device of the unstressed concentrated composition fiber tubing of bicycle use according to claim 2 is characterized in that:
This first interlocking group has first dovetail block that is arranged at core in this, and corresponding first lweis hole that is arranged at this first outer core, this second interlocking group has second dovetail block that is arranged at core in this, and corresponding second lweis hole that is arranged at this second outer core, the 3rd interlocking group has the 3rd dovetail block that is arranged at core in this, and corresponding the 3rd lweis hole that is arranged at the 3rd outer core, the 4th interlocking group has the 4th dovetail block that is arranged at core in this, and corresponding this 4th lweis hole of core all round that is arranged at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200671760U CN201971105U (en) | 2011-03-15 | 2011-03-15 | Preforming device of non-stress concentration composite fiber tube for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200671760U CN201971105U (en) | 2011-03-15 | 2011-03-15 | Preforming device of non-stress concentration composite fiber tube for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971105U true CN201971105U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200671760U Expired - Fee Related CN201971105U (en) | 2011-03-15 | 2011-03-15 | Preforming device of non-stress concentration composite fiber tube for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304187A (en) * | 2019-07-09 | 2019-10-08 | 捷安特（昆山）有限公司 | First three corner structure of bicycle frame of carbon fiber |
-
2011
- 2011-03-15 CN CN2011200671760U patent/CN201971105U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110304187A (en) * | 2019-07-09 | 2019-10-08 | 捷安特（昆山）有限公司 | First three corner structure of bicycle frame of carbon fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20150315 |
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| EXPY | Termination of patent right or utility model |