CN109367070A - A kind of vacuum perfusion process producing composite material support roller - Google Patents
A kind of vacuum perfusion process producing composite material support roller Download PDFInfo
- Publication number
- CN109367070A CN109367070A CN201811448973.6A CN201811448973A CN109367070A CN 109367070 A CN109367070 A CN 109367070A CN 201811448973 A CN201811448973 A CN 201811448973A CN 109367070 A CN109367070 A CN 109367070A
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- Prior art keywords
- vacuum
- perfusion
- resin
- composite material
- support roller
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- 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
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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
- B29C70/36—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 impregnating by casting, e.g. vacuum casting
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of for producing the vacuum perfusion process of composite material support roller, and glass layer and perfusion auxiliary material are first successively laid on the cylinder of perfusion mold, and the perfusion auxiliary material includes release cloth, flow-guiding screen and suction rubber mat；It is successively laid with release cloth, flow-guiding screen and inhales rubber mat；It is passed through pipeline and vacuum-pumping pipeline by the way that resin is arranged in mold upper and lower ends, perfusion resin is penetrated into glass fibre in heterogeneity under the action of vacuum suction, the carrying roller prepared in this way is uniform in material, fine and close, and strength and stiffness are better than rubber, plastic conveyer roller；Abrasion resistance is good, it is more wear-resisting than plastics, rubber idler through with.
Description
Technical field
The invention belongs to composite material support roller technical field of producing more particularly to a kind of composite material support rollers that produces
Vacuum perfusion process.
Background technique
Carrying roller is the key fitment and easily-consumed products of belt conveyer, it is desirable that has wear-resisting, light-weight and electric conductivity.It is existing
Carrying roller is made of three kinds of seamless steel pipe, rubber or plastics materials, and existing major defect is as follows: 1) steel carrying roller, and steel disappear
Consumption is big, and steel carrying roller weight is big, and motor institute wasted work rate is big；2) rubber or plastic conveyer roller, since these materials are insulation
, the rub for a long time electrostatic charge of generation of conveyer belt and carrying roller cannot import the earth, charge accumulated to a certain extent when can generate fire
Flower, there are security risks, are not suitable for explosion-proof place.
Currently, one of mainstream manufacture craft of composite element is vacuum auxiliary pouring and molding technique (Vacuum
infusion process).Vacuum auxiliary pouring and molding technique has input cost low, easy processing complicated shape product and large size
Structural fabrication.All there is important application with industries such as auto industrys very much in wind blade, ship, boat.Existing vacuum auxiliary pouring
Moulding process are as follows: (1) be laid with glass fiber reinforcing fabrics according to finished product structure design planning.(2) it is led in enhancing fabric surface laying
Drift net, diversion pipe, glue-feeder glue inlet tube, exhaust tube and flow-guiding screen, and exhaust tube is connected to vacuum pump.(3) it is transported by vacuum pump
Make, makes negative pressure in perfusion system presentation system.(4) perfusion resin is entered in glue inlet tube and diversion pipe by negative pressure, and Sized glass
Fiber preform body.(5) finished product curing molding is carried out according to process conditions.
It replaces steel to manufacture carrying roller with nonmetallic materials, is research topic in the field for many years, in recent years, though have
Such as report of ceramics, enamel, cast stone, plastics, glass reinforced plastic nonmetallic materials manufacture carrying roller, but because its complex art and economy refer to
The degree of popularization and application is not achieved in mark, and therefore, there has been no be applied to support by the technique of vacuum infusion molding using composite material
In the production of roller.
Summary of the invention
The present invention provides the technology using vacuum perfusion process production composite material support roller, it can fill up domestic at present and be somebody's turn to do
The blank in field reaches even more superior performance identical as steel carrying roller using the carrying roller needs of technology production, specifically
Technical solution is as follows:
It is a kind of for producing the vacuum perfusion process of composite material support roller, include the following steps:
The first step sets up perfusion mold, and the perfusion mold includes cylindrical tube and frame body, and the cylinder both ends pass through
Bolt arrangement is fixed on frame body, and the cylinder of the perfusion mold is cavity structure, and heating device is arranged in the cavity of cylinder；
Second step is successively laid with glass layer and perfusion auxiliary material, the perfusion auxiliary material packet on the cylinder of perfusion mold
It includes release cloth, flow-guiding screen and inhales rubber mat；Successively it is laid with one layer of release cloth, one layer of flow-guiding screen and two layers of suction rubber mat；
Third step, winding resin is passed through pipeline and vacuum suction pipeline on the outside of perfusion auxiliary material, and the resin is passed through pipeline
For coiled pipe, the exhaust pipe is connected on coiled pipe by the threeway on coiled pipe；Setting monitoring is true on exhaust pipe
The vacuum meter of reciprocal of duty cycle connects vacuum pump in the outlet end of vacuum suction pipeline, and vacuum degree is in 0.4MPa or more in control vacuum diaphragm；
4th step is laid with vacuum diaphragm in outermost layer, and vacuum diaphragm covers mold cylinder both ends, prevents the resin of perfusion from overflowing,
And the access of the both ends indwelling exhaust tube in vacuum diaphragm opposite direction, form priming by vacuum system；
System is perfused using the heating devices heat in cylinder cavity in 5th step, after reaching certain temperature, opens vacuum pump
System is vacuumized；
Resin compound is passed through pipeline by resin and is injected into priming by vacuum system by the 6th step；
7th step after completing perfusion, closes vacuum pump, stops the injection of resin and curing agent；
8th step maintains vacuum state 30-60 minutes, then restores normal pressure, be heating and curing molding at 60~65 DEG C；
9th step carries out subsequent processing, including is assembled into support with bearing block, circlip, retaining ring, sealing ring, bearing after demoulding
Roller finished product.
Preferably, the cylinder cavity inner heating device is electric heating device, controls the temperature of perfusion system at 30-40 DEG C
In range.
Preferably, in step 6, resin compound injection flow is 0.5-1.5mm/min.
Preferably, in the 5th step, heating time is 30-60 minutes.
Preferably, the resin compound includes unsaturated-resin, curing agent and pigment, wherein the matter of the curing agent
Amount is the 1-2% of unsaturated-resin quality, and the mass fraction of pigment is 0.1-0.6%, by unsaturated-resin, curing agent and pigment
It is injected into perfusion system after mixing；
Preferably, in the carrying roller, glass fiber quality range is 60-68%, the unsaturation containing curing agent and pigment
Resin quality range is 32-40%.
Preferably, in order to which reinforced resin injects effect, 4-5 threeway is set above coiled pipe, is set below coiled pipe
3-5 threeway is set, the threeway of top connects resin access tube road, and the threeway of lower section connects exhaust pipe.
Preferably, the coiled pipe uses PE material.
Vacuum perfusion process technology provided by the invention makes resin and auxiliary material penetrate into each layer material by vacuum pressure
Material, this mode osmotic effect more evenly, more saves material.
Compared with prior art, the beneficial effects of the present invention are:
Glass fiber compound material carrying roller good combination property of the present invention, it may be assumed that density is low, only the 1/ of steel carrying roller
3, great deal of steel can be not only saved, the operation power of belt conveyer can also reduced, so as to significantly energy saving；It is conductive
Property it is good, can avoid because friction caused by explosion accident occur；Strength and stiffness are better than rubber, plastic conveyer roller；Abrasion resistance is good, than
Plastics, rubber idler it is wear-resisting through with.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is that the vacuum perfusion process for the production composite material support roller that the present inventor provides implements sectional view；
Fig. 2 is that the vacuum perfusion process for the production composite material support roller that the present inventor provides implements side view；
Fig. 3 is the structure chart of the vacuum perfusion process perfusion mold for the production composite material support roller that the present inventor provides.
Wherein, the cylinder of mold is perfused in 1-, and the frame body of mold, 3- Electrothermal ring, 4- glass layer, 5- demoulding is perfused in 2-
Cloth, 6- flow-guiding screen, 7- suction rubber mat, 8- vacuum diaphragm, 9- coiled pipe, 10- threeway, 11- resin are passed through pipeline, 12- vacuum exhaust pipe
Road, 13- vacuum pump, 14- priming by vacuum system.
Specific embodiment
It is noted that described further below be all exemplary, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Heretofore described flow-guiding screen is applied to the high osmosis water conservancy diversion in composite material vacuum assistant resin infused
Medium is conducive to the flowing and infiltration of resin using five DNA mitochondrial DNA reticular structures of extrusion.According to the required stream for being formed product
Speed selects the flow-guiding cloth of different square grammes per square metres, can also design the laying of multilayer flow-guiding cloth stacking according to the structure for being formed product
Structure realizes effective control to resin flow regime, to improve the reliability and product quality of the part with complicated structure moulding process.
Release cloth is the minor handicraft of composite element forming and hardening process, is placed between mold and blank part
Prevent resin from mutually gluing with mold.Its effect is mainly conveniently stripped, guarantees that member type face is smooth.Release cloth is in glass cloth one side
Coating tetrafluoroethylene is applied on one side made of pressure sensitive adhesive.
It inhales rubber mat or airfelt is polyester or nylon material, there is excellent gas permeability and stickiness, be suitable for tradition
Vacuum-bag process technique (wet process) can be discharged bubble that is that lamination is brought into the process or generating in solidification process, and absorb
Excessive resin.
Fig. 1 is the vacuum perfusion process implementation sectional view for producing composite material support roller, and Fig. 2 is production composite material support roller
Vacuum perfusion process implements side view, and Fig. 3 is the structure chart that mold is perfused.
Specific embodiment is as described below:
Embodiment 1:
It is a kind of for producing the vacuum perfusion process of carrying roller, include the following steps:
The first step sets up perfusion mold, as shown in figure 3, the perfusion mold includes cylindrical tube 1 and frame body 2, it is described
1 both ends of cylinder are fixed on frame body 2 by bolt arrangement, and the cylinder of the perfusion mold is cavity structure, in the cavity of cylinder
Interior setting heating device；
Second step is successively laid with glass layer 4 and perfusion auxiliary material, the perfusion auxiliary material packet on the cylinder of perfusion mold
It includes release cloth, flow-guiding screen and inhales rubber mat；The laying amount of the glass layer determines according to the properties of product of specific requirement,
In the present embodiment, the glass fibre a layer thickness used is 0.05cm, is laid with 20 layers of glass fibre；Successively set one layer of release cloth 5,
One layer of flow-guiding screen 6 and two layers of suction rubber mat 7；
Third step, winding resin is passed through pipeline 11 and vacuum suction pipeline 12 on the outside of perfusion auxiliary material, and the resin is passed through
Pipeline 11 is coiled pipe 9, and the exhaust pipe is connected on coiled pipe by the threeway 10 on coiled pipe；It is set on exhaust pipe
The vacuum meter for setting monitoring vacuum degree connects vacuum pump 13 in the outlet end of vacuum suction pipeline 12, controls vacuum degree in vacuum diaphragm
In 0.4MPa or more；
4th step is laid with vacuum diaphragm 8 in outermost layer, and vacuum diaphragm covers mold cylinder both ends, prevents the resin of perfusion from overflowing,
And the access of the both ends indwelling exhaust tube in vacuum diaphragm opposite direction, form priming by vacuum system 14；
System is perfused using the heating devices heat in cylinder cavity in 5th step, after reaching certain temperature, opens vacuum pump
System is vacuumized, heating time is 30 minutes；
Resin compound is passed through pipeline by resin and is injected into priming by vacuum system by the 6th step；
7th step after completing perfusion, closes vacuum pump, stops the injection of resin and curing agent；
8th step maintains vacuum state 30 minutes, then restores normal pressure, be heating and curing molding at 60~65 DEG C；
9th step carries out subsequent processing, including is assembled into support with bearing block, circlip, retaining ring, sealing ring, bearing after demoulding
Roller finished product.
As a typical embodiment, the cylinder cavity inner heating device is Electrothermal ring 3, control perfusion system
Temperature is within the scope of 30-40 DEG C.
In step 6, resin compound injection flow is 1.5mm/min.
The resin compound includes unsaturated-resin, curing agent and pigment, wherein in this embodiment, takes 0.32t insatiable hunger
And resin, it is injected into perfusion system after mixing with curing agent 3kg, pigment 0.3kg；
In the carrying roller, the usage amount of glass fibre is 0.6t.
In order to which reinforced resin injects effect, 4 threeways are set above coiled pipe, 3 threeways are set below coiled pipe,
The threeway of top connects resin access tube road, and the threeway of lower section connects exhaust pipe.
Preferably, the coiled pipe uses PE material.
Embodiment 2:
Processing step is same as Example 1, and in the present embodiment, the 5th step, heating time is 60 minutes, the 6th step resin
It is 0.5mm/min that mixture, which injects flow, and the 8th step maintains vacuum state 60 minutes.
The resin compound includes unsaturated-resin, curing agent and pigment, wherein in this embodiment, takes 0.4t insatiable hunger
And resin, it is injected into perfusion system after mixing with curing agent 8kg, pigment 4.8kg；
In the carrying roller, the usage amount of glass fibre is 0.68t.
In order to which reinforced resin injects effect, 5 threeways are set above coiled pipe, 5 threeways are set below coiled pipe,
The threeway of top connects resin access tube road, and the threeway of lower section connects exhaust pipe.
After tested, the industrial standard comparison of composite material support roller manufactured in the present embodiment, conventional steel carrying roller and carrying roller
It is as follows:
To sum up result, it is seen that the composite material support roller density of vacuum perfusion process production provided by the invention is low, saves steel
Material, industrial application energy consumption are low；Uniform in material, good conductivity, intensity is high, and wearability is good；It is suitble to commercial introduction to use.
Priming by vacuum technology provided by the invention is passed through pipeline and vacuum-pumping tube by the way that resin is arranged in mold upper and lower ends
Perfusion resin is penetrated glass fibre, the carrying roller material prepared in this way by road in heterogeneity under the action of vacuum suction
Uniformly, fine and close, strength and stiffness are better than rubber, plastic conveyer roller；Abrasion resistance is good, it is more wear-resisting than plastics, rubber idler through with；
The present invention provides the carrying rollers with cavity to prepare mold, and heating device is arranged in the cavities, makes priming by vacuum system
Blanket insurance holds 30-40 ° of steady temperature, prevents from being not easy to flow because system temperature is low but resin and perfusion auxiliary material viscosity are too big,
Or system temperature is high and influence solidification effect；
Carrying roller density produced by the present invention is low, and the 1/3 of about common steel carrying roller density, reduce the mill of support parts
Damage, reduces the operation power of system, so as to significantly energy saving；Good conductivity can avoid thing of exploding caused by because of friction
Therefore occur.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of for producing the vacuum perfusion process of composite material support roller, which comprises the steps of:
The first step sets up perfusion mold, and the perfusion mold includes cylindrical tube and frame body, and the cylinder both ends pass through bolt
Structure is fixed on frame body, and the cylinder of the perfusion mold is cavity structure, and heating device is arranged in the cavity of cylinder；
Second step, is successively laid with glass layer and perfusion auxiliary material on the cylinder of perfusion mold, and the perfusion auxiliary material includes de-
Mould cloth, flow-guiding screen and suction rubber mat；Successively it is laid with one layer of release cloth, one layer of flow-guiding screen and two layers of suction rubber mat；
Third step, winding resin is passed through pipeline and vacuum suction pipeline on the outside of perfusion auxiliary material, and it is snake that the resin, which is passed through pipeline,
Shape pipe, the exhaust pipe are connected on coiled pipe by the threeway on coiled pipe；The setting monitoring vacuum degree on exhaust pipe
Vacuum meter, vacuum suction pipeline outlet end connect vacuum pump, control vacuum diaphragm in vacuum degree in 0.4MPa or more；
4th step is laid with vacuum diaphragm in outermost layer, and vacuum diaphragm covers mold cylinder both ends, prevents the resin of perfusion from overflowing, and
The access of the both ends indwelling exhaust tube of vacuum diaphragm opposite direction forms priming by vacuum system；
System is perfused using the heating devices heat in cylinder cavity in 5th step, after reaching certain temperature, opens vacuum pump to being
System vacuumizes；
Resin compound is passed through pipeline by resin and is injected into priming by vacuum system by the 6th step；
7th step after completing perfusion, closes vacuum pump, stops the injection of resin and curing agent；
8th step maintains vacuum state 30-60 minutes, then restores normal pressure, be heating and curing molding at 60~65 DEG C；
9th step carries out subsequent processing, including is assembled into carrying roller end with bearing block, circlip, retaining ring, sealing ring, bearing after demoulding
Product.
2. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that institute
Stating cylinder cavity inner heating device is electric heating device, controls the temperature of perfusion system within the scope of 30-40 DEG C.
3. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that
In 6th step, it is 0.5-1.5mm/min that resin compound, which injects flow,.
4. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that
In 5th step, heating time is 30-60 minutes.
5. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that institute
Stating resin compound includes unsaturated-resin, curing agent and pigment, wherein the quality of the curing agent is unsaturated-resin quality
1-2%, the mass fraction of pigment is 0.1-0.6%, and unsaturated-resin, curing agent and pigment are injected into filling after mixing
In injection system.
6. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that institute
It states in carrying roller, glass fiber quality range is 60-68%, and the unsaturated-resin mass range containing curing agent and pigment is 32-
40%.
7. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that
4-5 threeway is set above coiled pipe, 3-5 threeway is set below coiled pipe, the threeway of top connects resin access tube road,
The threeway of lower section connects exhaust pipe.
8. according to claim 1 a kind of for producing the vacuum perfusion process of composite material support roller, which is characterized in that institute
Coiled pipe is stated using PE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448973.6A CN109367070A (en) | 2018-11-28 | 2018-11-28 | A kind of vacuum perfusion process producing composite material support roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448973.6A CN109367070A (en) | 2018-11-28 | 2018-11-28 | A kind of vacuum perfusion process producing composite material support roller |
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| CN109367070A true CN109367070A (en) | 2019-02-22 |
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| CN201811448973.6A Pending CN109367070A (en) | 2018-11-28 | 2018-11-28 | A kind of vacuum perfusion process producing composite material support roller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253714A (en) * | 2019-05-22 | 2019-09-20 | 海盐碳为观止科技有限公司 | A kind of air forming mold and its technique |
| CN111186145A (en) * | 2019-12-28 | 2020-05-22 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
| CN111805946A (en) * | 2020-06-30 | 2020-10-23 | 上海航天智能装备有限公司 | Method for preparing composite material by hot-pressing reinforcement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253714A (en) * | 2019-05-22 | 2019-09-20 | 海盐碳为观止科技有限公司 | A kind of air forming mold and its technique |
| CN111186145A (en) * | 2019-12-28 | 2020-05-22 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
| CN111186145B (en) * | 2019-12-28 | 2022-04-08 | 中材科技(萍乡)风电叶片有限公司 | Wind power blade die assembly method |
| CN111805946A (en) * | 2020-06-30 | 2020-10-23 | 上海航天智能装备有限公司 | Method for preparing composite material by hot-pressing reinforcement |
| CN111805946B (en) * | 2020-06-30 | 2022-07-05 | 上海航天智能装备有限公司 | Method for preparing composite material by hot-pressing reinforcement |
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