CN107745532A - A kind of RTM production methods of shell - Google Patents
A kind of RTM production methods of shell Download PDFInfo
- Publication number
- CN107745532A CN107745532A CN201711047918.1A CN201711047918A CN107745532A CN 107745532 A CN107745532 A CN 107745532A CN 201711047918 A CN201711047918 A CN 201711047918A CN 107745532 A CN107745532 A CN 107745532A
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- CN
- China
- Prior art keywords
- mould
- shell
- production methods
- rtm
- resin
- 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.)
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Classifications
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- 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
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a kind of RTM production methods of shell, comprise the following steps：Step 1, first fibrage preform is placed to mould, recycle retaining mechanism to lock mould；Step 2, after mold-locked, mould is vacuumized；Step 3, after mould vacuumizes, the resin of heat is injected on mould inner surface by the reserving hole channel on mould, completely encloses mould；Continue extrusion resin, fibrage preform is formed and coated with the shell of resin film；Step 4, treat that shell solidifies, mold the shell taking-up of shaping；Step 5, checked after shell cooling and shaping, passed examination can packaging and storage.It can improve the fiber content of the shell of production, and the resin film of case surface is uniform.
Description
Technical field
The present invention relates to the technical field of fibrous material shaping, more particularly to one kind is using outside RTM technique productions robot
The method of shell.
Background technology
At present, with science and technology make rapid progress, robot is increasingly common in life, robot shells it is excellent not only
The attractive in appearance of robot is influenceed, the excellent of robot performance is also directly influenced, so the production method of shell is also extremely important.
But there is following defect in the production method of existing robot shells：
(1) fiber content for the shell produced is low, under making the high temperature resistant, cold-resistant and tensile resistance of shell significantly
Drop；
(2) resin film of the case surface produced is uneven, also has bubble to be not easy to eliminate.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of RTM production methods of shell, its energy
Improve the fiber content of the shell of production, the resin film of case surface is uniform.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of RTM production methods of shell, comprise the following steps：
Step 1, first fibrage preform is placed to mould, recycle retaining mechanism to lock mould；
Step 2, after mold-locked, mould is vacuumized；
Step 3, after mould vacuumizes, the resin of heat is injected into by table in mould by the reserving hole channel on mould
On face, completely enclose mould；Continue extrusion resin, fibrage preform is formed and coated with the shell of resin film；
Step 4, treat that shell solidifies, mold the shell taking-up of shaping；
Step 5, checked after shell cooling and shaping, passed examination can packaging and storage.
Further, the mould is RTM mold.
Further, the fibrage preform is carbon fibre composite.
Further, fibrage preform is placed into mould by the manipulator with sucker.
Further, the resin is gel coating resin.
Further, after gel coating resin solidification, mould is opened by hydraulic press.
Further, after opening mould, first pass through the manipulator with sucker and adsorb the shell, then pass through Double-ejection machine
Structure is by the shell ejection die.
Further, shell is transferred on cooling shaping fixture by the manipulator, then passes through the cooling and shaping
Frock makes the shell be cooled to room temperature.
Further, the production method also includes step 6：After the shell takes out from the mould, then pass through brush
Son and air pump clean to the mould.
Further, the production method also includes step 7：After the mould is cleaned, then the interior table in the mould
Face is evenly coated with one layer of releasing agent.
Compared with prior art, the beneficial effects of the present invention are：
(1) its shell is mainly based on fibrage preform, then on the surface of fibrage preform
Coat one layer of resin film and produce, the main raw material(s) for illustrating this method production shell is fiber, and the resistance to height of fiber
Temperature, cold-resistant and tensile resistance are all fine, so the shell function admirable that this method is produced.
(2) because the present invention vacuumizes to mould, the air so on its fibrage preform will be seldom, works as note
When entering the resin of heat, resin injection would not be influenceed by air pressure, the resin film of coating is produced bubble；Separately
Outside, this method also can make resin film evenly also by mould closure come extrusion resin.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of production method of the present invention.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
A kind of RTM production methods of shell as shown in Figure 1, comprise the following steps：
Step S1, first fibrage preform (raw material) is placed to mould, recycle retaining mechanism to mould
Locked；
Step S2, after mold-locked, mould is vacuumized；
Step S3, after mould vacuumizes, the resin of heat is injected into by table in mould by the reserving hole channel on mould
On face, completely enclose mould；Continue extrusion resin, fibrage preform is formed and coated with the shell of resin film；
Step S4, treat that shell solidifies, mold the shell taking-up of shaping；
Step S5, checked after shell cooling and shaping, passed examination can packaging and storage.
In the above-described embodiment, RTM is that enhancing fabric is placed in mould to form certain shape, then resin is injected
Into mould, fiber and a kind of process for producing composite material solidified are impregnated.The process contamination is small, can enhanced article design
Property, for producing shell, the designability with regard to shell can be improved.Its shell mainly based on fibrage preform,
One layer of resin film is coated on the surface of fibrage preform again and produced, illustrate the master of this method production shell
It is fiber to want raw material, and the high temperature resistant of fiber, cold-resistant and tensile resistance are all fine, so the shell that this method is produced
Function admirable；Optimal, under conditions of injection mold cavities keep sealing, mould is vacuumized, because the present invention takes out very to mould
Sky, so the air on its fibrage preform will be seldom, and air pressure reduces, when the resin of die cavity injection heat, just not
Resin injection can be influenceed by air pressure, the resin film of coating is produced bubble；In addition, this method also passes through mould
Closure carrys out extrusion resin, also can make resin film evenly；In addition, mould includes mold and lower mould, mold and lower mould
On be both provided with rubber seal, during such mould matched moulds, so that it may using the rebound performance of rubber seal, increase mold and
Gap after lower mould closure, beneficial to follow-up die sinking.
As preferred embodiment, its mould is RTM mold, has that fire-retardant, to reduce cost and rapid shaping etc. excellent
Point；Fibrage preform is carbon fibre composite, and it has the characteristic of general carbon materials, as high temperature resistant, rub resistance,
Conductive, heat conduction and corrosion-resistant etc., but unlike general carbon materials, its profile has significant anisotropy, softness, can added
Work shows very high intensity along fiber direction of principal axis, carbon fibre composite proportion is small, therefore has very high into various fabrics
Specific strength；Carbon fibre composite is placed into mould by the manipulator with sucker, realizes electric automatization, and improves effect
Rate；Resin is gel coating resin, after gel coating resin solidification, opens mould by hydraulic press, gel coating resin can improve the resistance to of product
The performance such as time, corrosion-resistant, wear-resisting simultaneously gives shell with bright beautiful outward appearance.
In the above-described embodiment, it first passes through carbon fibre composite and is put into mould, then vacuumizes, then injects gel coat
Resin, mould is closed again, the case surface to be molded is formed resin film, wherein passing through the equipment next life such as manipulator and hydraulic press
Shell is produced, automation can be realized, accelerate the speed of production of this method, can also improve security performance.
As preferred embodiment, this method first passes through the manipulator absorbing shell with sucker after mould is opened, then
By secondary ejecting mechanism by shell ejection die；Shell is transferred on cooling shaping fixture by manipulator again, then passed through
Cooling shaping fixture makes shell be cooled to room temperature, and the shell being molded, the step realize automated production, improves speed
Degree and security；This production method also includes step 6：After shell is removed from the molds, then by brush and air pump mould is entered
Row cleaning, the step facilitate reusing for mould；It also includes step 7：After mould is cleaned, then the interior table in mould
Face is evenly coated with one layer of releasing agent, and the releasing agent facilitates shell and spun off out of mould.
In the above-described embodiment, secondary ejecting mechanism is first passed through by shell ejection die, then is made up of manipulator handle
Shell be put on cooling shaping fixture and be cooled and shaped into shell, finally mould is cleaned, coating release agent, realize from
Dynamicization, in the present embodiment, its shell produced are mainly used in the shell of robot.
Summary, the present invention are used as production machine by using the quick RTM mould of multi-point injection using carbon fibre composite
The sheathing material of people, with RTM moulding process, it is successfully prepared the shell of carbon fiber-reinforced thermosetting epoxy resin composite material.
The shell is tested by static buckling rigidity, torsional rigidity and modal test, as a result meets that the technology that robotized plant proposes will
Ask, shell is ensure that in robot and on the basis of robot interior metal compatibility, weight also substantially alleviates, this method
It is adapted to the manufacturing of future robot shell.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (10)
1. the RTM production methods of a kind of shell, it is characterised in that comprise the following steps：
Step 1, first fibrage preform is placed to mould, recycle retaining mechanism to lock mould；
Step 2, after mold-locked, mould is vacuumized；
Step 3, after mould vacuumizes, the resin of heat is injected on mould inner surface by the reserving hole channel on mould,
Completely enclose mould；Continue extrusion resin, fibrage preform is formed and coated with the shell of resin film；
Step 4, treat that shell solidifies, mold the shell taking-up of shaping；
Step 5, checked after shell cooling and shaping, passed examination can packaging and storage.
2. the RTM production methods of shell according to claim 1, it is characterised in that：The mould is RTM mold.
3. the RTM production methods of shell according to claim 1, it is characterised in that：The fibrage preform is carbon
Fibrous composite.
4. the RTM production methods of shell according to claim 1, it is characterised in that：By the manipulator with sucker by fiber
Braiding preform is placed into mould.
5. the RTM production methods of shell according to claim 1, it is characterised in that：The resin is gel coating resin.
6. the RTM production methods of shell according to claim 5, it is characterised in that：After gel coating resin solidification, pass through
Hydraulic press opens mould.
7. the RTM production methods of shell according to claim 6, it is characterised in that：After opening mould, first pass through with sucker
Manipulator adsorbs the shell, then by secondary ejecting mechanism by the shell ejection die.
8. the RTM production methods of shell according to claim 7, it is characterised in that：Shell is shifted by the manipulator
The shell is set to be cooled to room temperature onto cooling shaping fixture, then by the cooling shaping fixture.
9. the RTM production methods of shell according to claim 1, it is characterised in that：The production method also includes step 6：
After the shell takes out from the mould, then by brush and air pump the mould is cleaned.
10. the RTM production methods of shell according to claim 9, it is characterised in that：The production method also includes step
Seven：After the mould is cleaned, then in the inner surface of the mould it is evenly coated with one layer of releasing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047918.1A CN107745532A (en) | 2017-10-31 | 2017-10-31 | A kind of RTM production methods of shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711047918.1A CN107745532A (en) | 2017-10-31 | 2017-10-31 | A kind of RTM production methods of shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107745532A true CN107745532A (en) | 2018-03-02 |
Family
ID=61252809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711047918.1A Pending CN107745532A (en) | 2017-10-31 | 2017-10-31 | A kind of RTM production methods of shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN107745532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561674A (en) * | 2019-09-29 | 2019-12-13 | 苏州银禧新能源复合材料有限公司 | Electric motor car battery box upper cover molding system |
| CN112261177A (en) * | 2019-07-22 | 2021-01-22 | Oppo广东移动通信有限公司 | Shell, manufacturing method of shell and electronic device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187079A (en) * | 2017-05-18 | 2017-09-22 | 宁波市益普乐模塑有限公司 | The forming method of aircraft machine cover shell |
-
2017
- 2017-10-31 CN CN201711047918.1A patent/CN107745532A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107187079A (en) * | 2017-05-18 | 2017-09-22 | 宁波市益普乐模塑有限公司 | The forming method of aircraft machine cover shell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261177A (en) * | 2019-07-22 | 2021-01-22 | Oppo广东移动通信有限公司 | Shell, manufacturing method of shell and electronic device |
| CN110561674A (en) * | 2019-09-29 | 2019-12-13 | 苏州银禧新能源复合材料有限公司 | Electric motor car battery box upper cover molding system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518118 Huicheng Science and Technology Industrial Plant, East of Lanjing Road and South of Jinxiu Road, Pingshan New District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Huicheng Information Technology Co., Ltd. Address before: 518118 Huicheng Science and Technology Industrial Plant, East of Lanjing Road and South of Jinxiu Road, Pingshan New District, Shenzhen City, Guangdong Province Applicant before: Huicheng Electric Co., Ltd., Shenzhen City |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180302 |
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| RJ01 | Rejection of invention patent application after publication |