CN108656856A - A kind of bicycle rim and its production method - Google Patents
A kind of bicycle rim and its production method Download PDFInfo
- Publication number
- CN108656856A CN108656856A CN201810579187.3A CN201810579187A CN108656856A CN 108656856 A CN108656856 A CN 108656856A CN 201810579187 A CN201810579187 A CN 201810579187A CN 108656856 A CN108656856 A CN 108656856A
- Authority
- CN
- China
- Prior art keywords
- rim
- support element
- bicycle rim
- bicycle
- expanded polypropylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000004743 Polypropylene Substances 0.000 claims abstract description 38
- -1 polypropylene Polymers 0.000 claims abstract description 38
- 229920001155 polypropylene Polymers 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 239000006260 foam Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 13
- 238000005187 foaming Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
- B29C70/683—Pretreatment of the preformed part, e.g. insert
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/70—Completely encapsulating inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of bicycle rim and its production methods, the rim ontology is molded with by polymer composite, its section forms support portion and the auxiliary section with matching of tyre, it is separated by dowel between support portion and auxiliary section, support portion is formed a chamber by dowel, expanded polypropylene support element is embedded in the chamber, the bicycle rim of the present invention, since rim ontology is molded with by polymer composite, and support portion and auxiliary section are separated by dowel, so that bicycle rim has the advantages that quality is high, and expanded polypropylene support element is equipped in chamber, have the function of supporting rim ontology, so that the support performance of bicycle rim is good；And the production method of the bicycle rim of the present invention simplifies production stage by first shaping foam polypropylene support part so that production operation is easy, and also improves the quality of finished product bicycle rim.
Description
Technical field
The present invention relates to bicycle rim technical field, a kind of bicycle rim and its production method are particularly related to.
Background technology
With the transformation of people's life idea, Green Travel because its with it is energy saving, reduce pollution, beneficial to health,
The advantages that taking into account efficiency becomes everybody preferred trip mode, and wherein bicycle is light with its, comfortable, easy to operate, speed
The advantages that fast, even more becomes one of the Green Travel tool that everybody is inclined to, therefore the security performance of bicycle also receives greatly therewith
Family's concern, and rim is as the important composition component in bicycle, the fine or not performance for directly determining vehicle of quality.
Traditional rim often selects iron material or steel in selection, because of the limitation of material so that the surface of rim
It gets rusty easily and damages, and its defect with weight weight, poor toughness, so reducing the quality of rim.
Also, existing rim mostly uses single layer structure design on section, although this design simplifies the structure of rim,
It is so that the support performance of rim is poor, safety coefficient is not high in the process of moving for bicycle, and rim easily deforms；Also there is vehicle
The design for using multilayered structure on section is enclosed, but between the multilayered structure of its rim is hollow design, to a certain extent
The support performance of rim is reduced again.
Furthermore existing rim production method also Shortcomings, a kind of existing production method of rim usually include tool
There are the rim mold and nylon wind pipe that contoured cross-section is consistent with rim section, first passes through in rim mold with rim outer profile
On the basis of on the surface thereof in advance stack rim former material, then in rim mold place a scaled down more smaller than rim
Nylon wind pipe, and be reserved with air nozzle hole, finally mold, pass through molding of pressurizeing, be heating and curing.Such moulding process has pre- heap
The shortcomings that folded difficulty is high, the operating time is long, rim is easy to deform because of gap, so causing rim quality after molding low.
The production method of existing another kind rim, in addition to including the rim mold for having contoured cross-section consistent with rim section
And outside nylon wind pipe, the EPS expanded material mandrels of the scaled down more smaller than rim are additionally provided with, first by the nylon wind
Pipe is fixed on the surface of the EPS expanded material mandrels, and is reserved with air nozzle hole, is then stacked in advance on the surface of nylon wind pipe
Rim former material, finally molds, and passes through molding of pressurizeing, be heating and curing.Such moulding process is simple with pre- stack operation, the time is short
The advantages of, but equally have the shortcomings that rim is easy to deform because of gap, so cause rim quality after molding low, and
EPS expanded materials mandrel and nylon wind pipe can stay in the inside of rim, easy to produce abnormal sound, or need to destroy the office of rim
Portion reduces the quality of rim again to a certain extent to take out EPS expanded materials mandrel and nylon wind pipe.
It is led in view of this, the present inventor is directed in above-mentioned bicycle rim structure design and production method not attain to improve
The many missings caused and inconvenience, and deeply conceive, and actively research improvement has a fling at and develops and design the present invention.
Invention content
The purpose of the present invention is to provide a kind of bicycles simple for process, easy to operate and support performance is good, quality is high
Rim and its production method.
In order to achieve the above objectives, solution of the invention is：
A kind of bicycle rim, the rim ontology are molded with by polymer composite, section form support portion and with
The auxiliary section of matching of tyre, is separated between support portion and auxiliary section by dowel, and support portion is formed a chamber by dowel, described
Chamber in be embedded with expanded polypropylene support element.
The middle part of the dowel is equipped with the segmental arc to concave.
It is additionally provided on the rim ontology and the integrally formed gear wall of rim ontology.
A kind of production method of above-mentioned bicycle rim comprising following steps：
The making of step 1, expanded polypropylene support element：There is rim ontology support portion inner cavity shape by support element mold foaming
The expanded polypropylene support element of shape；
Step 2, rim pre-shaped：The fiber cloth of polymer composite is stacked in advance on the surface of expanded polypropylene support element；
The fiber yarn sheet for the polymer composite for having presoaked resin is stacked on the surface of fiber cloth in advance again；
Step 3, rim molding：The expanded polypropylene support element for being stacked with fiber cloth and fiber yarn sheet in advance is placed on rim mold
Forming cavity room in；Pass through temperature-pressure curing molding；Cooling and demolding gets product bicycle rim.
The density of expanded polypropylene support element is 25g/L-120g/L in the step 1.
It is 100 DEG C -140 DEG C to the temperature of rim mold heating in the step 3, exists to the moulding pressure value of rim mold
1bar-10bar。
After adopting the above scheme, bicycle rim of the invention due to rim ontology by polymer composite be molded and
At, and support portion and auxiliary section have been separated by dowel so that bicycle rim has the advantages that quality is high, and is set in chamber
There is expanded polypropylene support element, has the function of supporting rim ontology so that the support performance of bicycle rim is good；In addition, this
The production method of the bicycle rim of invention is by first shaping foam polypropylene support part, then in expanded polypropylene support element
The step of upper pre-shaped for completing rim ontology, you can the step of entering using rim mold shaping finished product rim simplifies production
Step so that production operation be easy, while expanded polypropylene support element in finished product rim forming process can foaming and intumescing, hair
It is close to the inner surface of chamber in the outer surface of foaming polypropylene support element so that rim ontology, which reduces in forming process, to deform
Probability also improves the quality of finished product bicycle rim.
Description of the drawings
Fig. 1 is the partial sectional view of the present invention；
Fig. 2 is the partial sectional view of support element mold of the present invention；
Fig. 3 is the partial sectional view for the expanded polypropylene support element that the present invention is stacked with polymer composite in advance；
Fig. 4 is the partial sectional view of rim mold of the present invention.
Specific implementation mode
In order to further explain the technical solution of the present invention, being explained in detail the present invention below by specific embodiment
It states.
As shown in Figures 1 to 4, a kind of bicycle rim 10 of the invention, the rim ontology 1 by polymer composite at
Type forms, and section forms support portion 11 and the auxiliary section 12 with matching of tyre, by even between support portion 11 and auxiliary section 12
It connects muscle 14 to separate, support portion 11 is formed a chamber 13 by dowel 14, and expanded polypropylene support is embedded in the chamber 13
Part 2.
The middle part of the dowel 14 is equipped with the segmental arc 15 to concave, when rim ontology 1 is by external pressure, arc
Section 15 can curve inwardly deformable squeeze expanded polypropylene support element 2 to alleviate external pressure, and expanded polypropylene support element 2 is because of it
With it is elastic and can alleviate segmental arc 15 deformation generate pressure, to avoid rim ontology 1 from being damaged by external pressure, when
External pressure disappears, and segmental arc 15 again can be so that rim ontology 1 restores original shape using the elastic force of self structure so that described
The structure of bicycle rim 10 is more secured, also improves its support performance.
Be additionally provided on the rim ontology 1 with 1 integrally formed gear wall 16 of rim ontology, the gear wall 16 can to installation
Tire in auxiliary section 12 has fixing effect.
The advantages of bicycle rim 10 of the present invention, is：The bicycle rim 10 of the present invention is since rim ontology 1 is by height
Molecular composite material is molded with, and has separated support portion 11 and auxiliary section 12 by dowel 14 so that bicycle rim 10 has
Have the advantages that quality is high, and by being equipped with expanded polypropylene support element 2 in the chamber 13, there is support rim ontology 1
Effect so that the support performance of bicycle rim 10 is good.
Bicycle rim 10 of the present invention can be made by following production method.
Specifically, shown in cooperation Fig. 1 to Fig. 4, a kind of production method of the bicycle rim 10 specifically includes：
The making of step 1, expanded polypropylene support element 2：There is 1 support portion 11 of rim ontology by 3 foaming of support element mold
The expanded polypropylene support element 2 of cavity shape；
Raw material used in 3 shaping foam polypropylene support part 2 of the support element mold are the expanded polypropylene particle of prefoam
21, the support element mold 3 is molded expanded polypropylene branch by sucking expanded polypropylene particle 21, and by external heating
Support member 2；
The mode of heating of the outside heats for steam so that support element mold 3 is heated evenly, the expanded polypropylene support element
2 plastotype acceptance rate is high；
The foaming poly- third is controlled by the quantity of the expanded polypropylene particle 21 of the prefoam of the control sucking of support element mold 3
The density of alkene support element 2 is 25g/L-120g/L；
Step 2, rim pre-shaped：The fiber cloth 22 of polymer composite is stacked on to the surface of expanded polypropylene support element 2 in advance
On；The fiber yarn sheet 23 for the polymer composite for having presoaked resin is stacked in advance on the surface of fiber cloth 22 again；
It can be according to the difference of the physical property of the different parts of bicycle rim 10, on the surface of expanded polypropylene support element 2
Different zones stack the fiber cloth 22 of different polymer composites in advance, such as carbon cloth 22, glass fabric 22, fragrance
The fiber yarn sheet 23 of race's fiber cloth 22 etc. and different layers of polymer composites for having presoaked resin；
Step 3, rim molding：The expanded polypropylene support element 2 for being stacked with fiber cloth 22 and fiber yarn sheet 23 in advance is placed on vehicle
In the molding chamber 41 of ring mould 4；Pass through temperature-pressure curing molding；Cooling and demolding gets product bicycle rim 10；
Temperature to the heating of rim mold is 100 DEG C -140 DEG C, to the moulding pressure value of rim mold in 1bar-10bar；
The mode of heating heats for steam so that rim mold 4 is heated evenly, the plastotype acceptance rate of the bicycle rim 10
It is high.
The advantages of 10 production method of bicycle rim of the present invention, is：The production method of bicycle rim 10 of the present invention is
By first shaping foam polypropylene support part 2, the step of the pre-shaped of rim ontology 1 is then completed on expanded polypropylene support element 2
Suddenly, you can the step of entering using 4 shaping finished product bicycle rim 10 of rim mold simplifies production stage so that production exercise
Be easy, at the same expanded polypropylene support element 2 in 10 forming process of finished product bicycle rim can foaming and intumescing, foaming poly- third
Be close to the inner surface of chamber 13 in the outer surface of alkene support element 2 so that rim ontology 1 reduce in forming process deform it is general
Rate also improves the quality of finished product bicycle rim 10.
The product form and style of above-described embodiment and schema and the non-limiting present invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as the patent category for not departing from the present invention.
Claims (6)
1. a kind of bicycle rim, which is molded with by polymer composite, section form support portion and
With the auxiliary section of matching of tyre, being separated by dowel between support portion and auxiliary section, support portion is formed a chamber by dowel,
It is characterized in that：Expanded polypropylene support element is embedded in the chamber.
2. a kind of bicycle rim as described in claim 1, it is characterised in that：The middle part of the dowel is equipped with and concaves
Segmental arc.
3. a kind of bicycle rim as described in claim 1, it is characterised in that：It is additionally provided on the rim ontology and rim sheet
The gear wall of body by integral forming.
4. a kind of production method of bicycle rim comprising following steps：
The making of step 1, expanded polypropylene support element：There is rim ontology support portion inner cavity shape by support element mold foaming
The expanded polypropylene support element of shape；
Step 2, rim pre-shaped：The fiber cloth of polymer composite is stacked in advance on the surface of expanded polypropylene support element；
The fiber yarn sheet for the polymer composite for having presoaked resin is stacked on the surface of fiber cloth in advance again；
Step 3, rim molding：The expanded polypropylene support element for being stacked with fiber cloth and fiber yarn sheet in advance is placed on rim mold
Forming cavity room in；Pass through temperature-pressure curing molding；Cooling and demolding gets product bicycle rim.
5. a kind of production method of bicycle rim as claimed in claim 4, it is characterised in that：It foams in the step 1 poly-
The density of propylene support element is 25g/L-120g/L.
6. a kind of production method of bicycle rim as claimed in claim 4, it is characterised in that：To rim in the step 3
The temperature of mold heating is 100 DEG C -140 DEG C, to the moulding pressure value of rim mold in 1bar-10bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579187.3A CN108656856A (en) | 2018-06-07 | 2018-06-07 | A kind of bicycle rim and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579187.3A CN108656856A (en) | 2018-06-07 | 2018-06-07 | A kind of bicycle rim and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108656856A true CN108656856A (en) | 2018-10-16 |
Family
ID=63775582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579187.3A Withdrawn CN108656856A (en) | 2018-06-07 | 2018-06-07 | A kind of bicycle rim and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108656856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020252758A1 (en) * | 2019-06-21 | 2020-12-24 | 龙台工业股份有限公司 | Method for manufacturing composite rim |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0524401U (en) * | 1991-09-12 | 1993-03-30 | 帝人株式会社 | Bicycle rim |
| CN101850694A (en) * | 2010-06-03 | 2010-10-06 | 深圳市喜德盛碳纤科技有限公司 | Carbon fiber rim and manufacturing method thereof |
| CN103770563A (en) * | 2012-10-23 | 2014-05-07 | 中山市富达运动器材有限公司 | fiber composite wheel frame |
| CN106696595A (en) * | 2015-07-23 | 2017-05-24 | 亚猎士科技股份有限公司 | Bicycle rim structure |
| CN107139508A (en) * | 2017-05-16 | 2017-09-08 | 深圳市牧世复材科技有限公司 | A kind of interlayer composite material moulding process for body of a motor car |
| CN208438984U (en) * | 2018-06-07 | 2019-01-29 | 厦门新凯复材科技有限公司 | A kind of bicycle rim |
-
2018
- 2018-06-07 CN CN201810579187.3A patent/CN108656856A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0524401U (en) * | 1991-09-12 | 1993-03-30 | 帝人株式会社 | Bicycle rim |
| CN101850694A (en) * | 2010-06-03 | 2010-10-06 | 深圳市喜德盛碳纤科技有限公司 | Carbon fiber rim and manufacturing method thereof |
| CN103770563A (en) * | 2012-10-23 | 2014-05-07 | 中山市富达运动器材有限公司 | fiber composite wheel frame |
| CN106696595A (en) * | 2015-07-23 | 2017-05-24 | 亚猎士科技股份有限公司 | Bicycle rim structure |
| CN107139508A (en) * | 2017-05-16 | 2017-09-08 | 深圳市牧世复材科技有限公司 | A kind of interlayer composite material moulding process for body of a motor car |
| CN208438984U (en) * | 2018-06-07 | 2019-01-29 | 厦门新凯复材科技有限公司 | A kind of bicycle rim |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020252758A1 (en) * | 2019-06-21 | 2020-12-24 | 龙台工业股份有限公司 | Method for manufacturing composite rim |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |
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| WW01 | Invention patent application withdrawn after publication |