CN1562618A - Pultrude, enwinding, rotating tecnique for forming threaded bolt from composite material with transverse fiber thread, and equipment - Google Patents
Pultrude, enwinding, rotating tecnique for forming threaded bolt from composite material with transverse fiber thread, and equipment Download PDFInfo
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- CN1562618A CN1562618A CN 200410014588 CN200410014588A CN1562618A CN 1562618 A CN1562618 A CN 1562618A CN 200410014588 CN200410014588 CN 200410014588 CN 200410014588 A CN200410014588 A CN 200410014588A CN 1562618 A CN1562618 A CN 1562618A
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Abstract
A technology for apparatus for making the composite helical rod with transverse fibric thread used for the building near the sea or the supporter of mine is disclosed. Said technology includes pulling the thermosetting fibres through collecting roller to become fibre cluster, passing it through resin bath for dipping, cold die pressing to remove excessive resin and air bubbles, forming helical, solidifying to become a helical rod, winding the dipped-in-resin fibres around it, loading in rotating mould, preheating, coagulating, solidifying and baking.
Description
Technical field
The present invention relates to a kind of thermosetting fibre composite material pultrusion Processes and apparatus, the formed by extrusion and tension Processes and apparatus of non-linear, variable cross-section shape goods particularly, rotational molding technology and equipment are twined in specifically a kind of composite threaded rod pultrusion with the transverse fiber screw thread.
Background technology
With the goods of thermosetting fibre composite by the pultrusion molding process manufacturing owing to have high-strength light, corrosion resistant advantage, the goods of its pultrusion have good physics, chemical property makes it obtain using widely at industrial circle, electrical property that it is good and high-strength light characteristic are used to produce electric pole, electrician's usefulness scaffold, insulation board, conduit, blade of wind-driven generator, wireless mast, optical fiber cable and various electrical equipment in electrical industry.Its good chemically-resistant, environmental corrosion resisting ability can be used to replace corrosion-resistant construction materials such as stainless steel, pottery.The good mechanical property of pultrusion goods is given full play to one's remarkable skill it in building, mine, machinery manufacturing industry, can be used to materials such as substitute structure steel, alloy aluminum, high-quality timber.
As everyone knows, screw-thread steel in the building of coastal area is very easily corroded, cause be significantly less than the service life of hinterland in its service life, add up according to interrelated data, abroad, the loss that the annual invar muscle corrosion of the U.S. causes is up to 70,000,000,000 dollars, and accounting for more than 1/3rd of reinforcing bar need be rebuild or change to the reinforced concrete structure invar muscle corrosion that Britain is built in ocean and the chloride media environment.At home, show that the bar construction in 967 members is owing to be subjected to the corrosion of sea wind, seawater also to be badly in need of changing according to 22 middle-size and small-size marine structure investigation to Zhenghai, Zhejiang in 1984.
And the goods of composite material pultrusion are owing to have good corrosion-resistant chemical property and light weight, high-strength physical property, be the substitute of coastal area building with reinforcing bar the best, but owing to be subjected to the influence of traditional handicraft and pultrusion production line, existing pultrusion goods mostly are the linear pattern section bar greatly, the shape of its any cross section is identical, can't substitute screw-thread steel and be used for building trade.The manufacturing process of linear pattern section bar and relevant device see national defense industry for details publishes " the high-tech Composite Preparation handbook 322-325 page or leaf of looking in May, 2003 publication.
In order to solve of the application of thermosetting fibre composite in building trade, realize replacing the purpose of steel screw-thread steel for building, the linear pattern bar can be squeezed into threaded threaded rod by the method that the shaping mould in the composite material pultrusion production line is made into rotating mould, but the machine direction of its screw thread of threaded rod that obtains with this process is for vertically, bearing capacity is limited, tooth top is easy to fracture, can only be used for the less occasion of bearing capacity, can't replace screw-thread steel in heavy construction and industrial and mining enterprises, to be extensive use of.
Summary of the invention
The purpose of this invention is to provide a kind of composite threaded rod pultrusion winding rotational molding technology and equipment that utilizes the building that is widely used in the coastal area of composite manufacturing and the band transverse fiber screw thread that the supporting of tunnel, mine is used.
Technical solution of the present invention is:
One, process:
Rotational molding technology is twined in a kind of composite threaded rod pultrusion, uses thermosetting fibre as raw material, and mixes an amount of assistant, is used for continuous producing composite material threaded rod on pultrusion rotating mould former, it is characterized in that:
A, thermosetting fibre is drawn from creel, through yarn collecting wheel, under the effect of tensioner control, make thermosetting fibre be same tension force fasciculation, when entering cold mould then and extrude unnecessary resin and discharge bubble, the bundle fiber compacting is obtained the fiber rod by resin impregnation tank;
B, with the above-mentioned fiber rod that makes with the speed of 100～600 mm/min by rotating speed be 10～60 rev/mins rein in the tooth device, obtain screwed longitudinal fiber screw rod;
C, screwed longitudinal fiber screw rod is sent into drying tunnel, under 110 °～150 ° temperature, carry out solidifying the first time, curing degree is reached more than 80%, obtain screwed longitudinal fiber blank screw rod;
D, screwed longitudinal fiber blank screw rod is sent into wrapping machine with the described identical speed of b step, wrapping machine will be wrapped on the screwed longitudinal fiber blank screw rod with the rotating speed identical with the b step through the fiber of resin dipping, the tooth top that twines on the former screwed longitudinal fiber blank screw rod in back becomes at the bottom of the tooth, become tooth top at the bottom of the tooth, thereby obtain being wound with the threaded bad bar of hair of transverse fiber;
E, make the bad bar of threaded hair that is wound with transverse fiber continue to enter in the rotating mould with the speed identical with the b step, rotating mould is with the rotational speed identical with above-mentioned wrapping machine, be wound with threaded bad bar of hair process preheating, gel, curing in the rotating mould that rotates of transverse fiber, obtain the thread surface smooth threaded rod semi-finished product of transverse fiber through extruding;
F, the threaded rod semi-finished product are sent into baking oven, in 120 °～160 ° final solidification temperature scope, be cured, obtain the finished product threaded rod of making by the thermosetting fibre material.
Preheat temperature in the aforesaid rotating mould is that 85～95 °, gelling temp are that 145 °～160 °, solidification temperature are 130 °～150 °.
Two, complete former
A kind of composite threaded rod pultrusion with the transverse fiber screw thread is wound in sleeve forming equipment, successively by creel, yarn collecting wheel, tensioner, resin impregnation tank, cold mould, rein in the tooth device, solidified cell for the first time, wrapping machine, final solidified cell, the sync pulling machine is formed by connecting, sync pulling machine travel thermosetting fibre passes through creel respectively after drawing from creel with constant speed, yarn collecting wheel, tensioner, resin impregnation tank, cold mould, rein in the tooth device, solidified cell for the first time, wrapping machine, final solidified cell obtains finished product, wrapping machine comprises the winding rotating disk, it is characterized in that: be connected with rotating mould at wrapping machine, the winding rotating disk of rotating mould and wrapping machine rotates with speed, the inner chamber of rotating mould is provided with and the identical screw thread inner chamber of screw thread on the finished product threaded rod, outside at rotating mould is with heating element heater, and heating element heater and rotating mould rotate synchronously.
The above-mentioned rotating mould external heated element that is sleeved on can make rotating mould obtain three sections different temperature, and it is that 145 °～160 °, solidification temperature are 130 °～150 ° that these three sections different temperature are respectively 85～95 ° of preheat temperatures, gelling temp.Three sections different heating-up temperatures of heating element heater can be realized by the electrical control gear of routine, heating element heater can adopt the method for brush to be achieved with being connected of power supply, and this is to realize that very easily those of ordinary skill can be realized in electrical control.
The above-mentioned tooth device of reining in comprises reining in the tooth rotating disk and being installed in the tooth of reining on the tooth rotating disk of reining in and reins in the tensioner that tooth is used with fiber frame, lever jack, control, reins in the tooth rotating disk and is installed in and reins on the tooth turntable shaft, reins in the tooth turntable shaft and links to each other with motor by driving-belt.
One side of above-mentioned winding rotating disk is equipped with lever jack and fiber frame, and opposite side is equipped with tensioner, and the winding turntable shaft is bearing on the support and with rotating mould and links to each other, and twines turntable shaft and links to each other with reductor by driving-belt, and reductor is driven by drive motors.
Beneficial effect of the present invention:
1, filled up the manufacturing process blank of non-rectilinear, curved section and threaded rod goods in the thermosetting fibre composite material pultrusion technology.
2, can process the goods of various variable cross-sections or different spiral shell squares by adjusting hauling speed and the rotating speed that twines mould and rotation extrusion die, the range of application of pultrusion molding process goods is further enlarged.
3, the goods of threaded rod of producing with method of the present invention or curved section have the spiral shell carpenter's square cun accurately, smooth surface, position stretch intensity and transverse strength height, not magnetic conduction, insulation, can replace traditional screw-thread steel, use as construction material in place at seriously corrodeds such as coastal, underground, deep mountain valleys, it also has light weight simultaneously, the advantage that life-span is long can prolong service life of building.Both can replace screw-thread steel in the building of coastal area, to use, also can in the underground mine operation, replace the roadway bolt of wooden or metal, have broad application prospects.
4, the goods of threaded rod of producing with the inventive method or curved section also can be used for insulation and magnetic conduction are had the military installations of strict demand and saturating ripple had in the telecommunication facility of specific (special) requirements.
5, the threaded rod of producing with the inventive method can be used to replace the screw rod in the plastic extruder, and performance and the transmission performance that improves plastic extruder had obvious effects.
6, the complete former of the present invention is simple in structure, low cost of manufacture.
7, use the process equipment of the manufacturing of the inventive method both can produce threaded rod of the present invention, also can use as conventional equipment, produce conventional linear pattern pultrusion goods by removing corresponding wrapping machine and rotary die.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Fig. 2 is a pultrusion complexes syndeton schematic diagram of the present invention.
Fig. 3 is the tooth apparatus structure schematic diagram of reining in of the present invention.
Fig. 4 is the wrapping machine and the rotating mould apparatus structure schematic diagram of invention.
Fig. 5 is this bright rotary die structural representation.
Fig. 6 is a finished product structural representation of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Rotational molding technology is twined in a kind of composite threaded rod pultrusion, uses thermosetting fibre as raw material, is used for continuous producing composite material threaded rod on pultrusion rotating mould former, it is characterized in that:
A, thermosetting fibre is drawn from creel, through yarn collecting wheel, under the effect of tensioner control, make thermosetting fibre be same tension force fasciculation, when entering cold mould then and extrude unnecessary resin and discharge bubble, the bundle fiber compacting is obtained the fiber rod by resin impregnation tank;
B, with the above-mentioned fiber rod that makes with the speed of 100～600 mm/min by rotating speed be 10～60 rev/mins rein in the tooth device, obtain screwed longitudinal fiber screw rod;
C, screwed longitudinal fiber screw rod is sent into drying tunnel, (the best is 120 °～160 °) carries out solidifying the first time under 110 °～150 ° temperature, and curing degree is reached more than 80%, obtains screwed longitudinal fiber blank screw rod;
D, screwed longitudinal fiber blank screw rod is sent into wrapping machine with the described identical speed of b step, wrapping machine will be wrapped on the screwed longitudinal fiber blank screw rod with the rotating speed identical with the b step through the fiber of resin dipping, the tooth top that twines on the former screwed longitudinal fiber blank screw rod in back becomes at the bottom of the tooth, become tooth top at the bottom of the tooth, thereby obtain being wound with the threaded bad bar of hair of transverse fiber;
E, make the bad bar of threaded hair that is wound with transverse fiber continue to enter in the rotating mould with the speed identical with the b step, rotating mould is with the rotational speed identical with above-mentioned wrapping machine, the bad bar of threaded hair that is wound with transverse fiber in the rotating mould that rotates through preheating (temperature for be 85～95 °), gel (temperature is 145 °～160 °), solidify (temperature is 130 °～150 °), obtain the thread surface smooth threaded rod semi-finished product of transverse fiber through pushing;
F, the threaded rod semi-finished product are sent into baking oven, in 120 °～160 ° final solidification temperatures (the best is 160 °～145 °) scope, be cured, obtain the finished product threaded rod of making by the thermosetting fibre material.
Complete former of the present invention successively by creel 1, yarn collecting wheel 2, tensioner 3, resin impregnation tank 4, cold mould 5, rein in tooth device 6, for the first time solidified cell 7, wrapping machine 8, final solidified cell 10, sync pulling machine 11 are formed by connecting, after sync pulling machine 11 traction thermosetting fibres are drawn from creel 1 with constant speed respectively through creel 1, yarn collecting wheel 2, tensioner 3, resin impregnation tank 4, cold mould 5, rein in tooth device 6, solidified cell 7, wrapping machine 8, final solidified cell 10 obtain finished product for the first time.Rein in that tooth device 6 can comprise rotating disk 12 and the tooth of reining in that is installed on the rotating disk 12 is reined in the tensioner 17 that tooth is used with fiber frame 15, lever jack 16, control, twine rotating disk 12 and be installed on the turntable shaft 18, turntable shaft 18 passes through driving-belt 19 and links to each other with motor 20.Wrapping machine 8 comprises winding rotating disk 27, wrapping machine 8 is connected with rotating mould 9, rotating mould 9 rotates with speed with the winding rotating disk 12 of wrapping machine 8, the inner chamber of rotating mould 9 is provided with and the identical screw thread inner chamber 13 of screw thread on the finished product threaded rod, be with heating element heater 14 in the outside of rotating mould 9, heating element heater 14 rotates synchronously with rotating mould 9, one side of twining rotating disk 12 is equipped with lever jack 21 and fiber frame 22, opposite side is equipped with tensioner 23, winding turntable shaft 24 is bearing on the support and with rotating mould 9 and links to each other, twine turntable shaft 24 and link to each other with reductor 26 by driving-belt 25, reductor 26 is driven by drive motors.Solidified cell 7 and final solidified cell 10 all can adopt conventional baking oven or drying tunnel to replace for the first time, and the operating temperature of baking oven or drying tunnel as previously mentioned.
The present invention is further illustrated below in conjunction with equipment of the present invention and technical process.
As shown in Figure 2.
A kind of composite threaded rod pultrusion twine rotary forming equipment successively by creel 1, yarn collecting wheel 2, tensioner 3, resin impregnation tank 4, cold mould 5, rein in tooth device 6, solidified cell 7 (drying tunnel), wrapping machine 8, rotating mould 9, final solidified cell 10 (drying tunnel), sync pulling machine 11 are formed by connecting for the first time, wrapping machine 8 and rotating mould 9 rotate synchronously.During concrete production, at first thermosetting fibre is drawn from creel 1, through yarn collecting wheel 2, under the effect of tensioner 3, make thermosetting fibre be identical tension force fasciculation and pass through resin impregnation tank 4, when entering cold mould 5 then and extrude unnecessary resin and discharge bubble, the bundle fiber compacting is obtained the fiber rod; The fiber rod that pulls out from cold mould 5 ports of export enters to rein under the traction of sync pulling machine 10 reins in out the longitudinal fiber screw rod that has at the bottom of tooth top and the tooth the tooth device 6 (as Fig. 3), enter then in the solidified cell 7 first time (drying tunnel), under 125 ° temperature, resin is carried out solidifying the first time, when screwed longitudinal fiber blank screw rod pulled out from solidifying drying tunnel 6 for the first time, its curing degree can reach more than 80%; Screwed longitudinal fiber blank screw rod moves on, enter (structure of wrapping machine 8 is seen shown in Figure 4) in the wrapping machine 8, and pass through wrapping machine with the speed of 600 mm/min, fiber through the resin dipping is housed on the wrapping machine 8 in advance, wrapping machine 8 will be wrapped on the screwed longitudinal fiber blank screw rod through the fiber of resin dipping with 20 rev/mins rotating speed, the tooth top that twines on the former screwed longitudinal fiber blank screw rod in back becomes at the bottom of the tooth, become tooth top at the bottom of the tooth, thereby obtain being wound with the threaded bad bar of hair of transverse fiber; Make the threaded bad bar of hair that is wound with transverse fiber continue to enter (structure of rotating mould 9 as shown in Figure 4) in the rotating mould 9 then with the speed of 600 mm/min, rotating mould 9 is with 20 rev/mins rotational speed, enter screw thread on the bad bar of threaded hair that is wound with transverse fiber of rotating mould 9 through rotating mould 9 preheatings (temperature for be 90 °), gel (temperature is 140), after solidifying (temperature is 125 °), discharge unnecessary air, obtain the thread surface smooth threaded rod semi-finished product of transverse fiber through extruding, the threaded rod semi-finished product enter under the traction of sync pulling machine 11 in the final solidified cell 10 (drying tunnel), the final solidification temperature of final solidified cell 10 (drying tunnel) is 160 °, under the traction of sync pulling machine 11, the finished product threaded rod of threaded rod semi-finished product through obtaining behind the final baking oven 9 being made by the thermosetting fibre material, this threaded rod continue to leave production line and enter road cut-out down under the traction of sync pulling machine 11, packing, the shipping operation.
Claims (5)
1, rotational molding technology is twined in a kind of composite threaded rod pultrusion with the transverse fiber screw thread, uses thermosetting fibre as raw material, is used for producing continuously the composite threaded rod of band transverse fiber screw thread, it is characterized in that:
A, thermosetting fibre is drawn from creel, through yarn collecting wheel, under the effect of tensioner control, make thermosetting fibre be same tension force fasciculation, when entering cold mould then and extrude unnecessary resin and discharge bubble, the bundle fiber compacting is obtained the fiber rod by resin impregnation tank;
B, with the above-mentioned fiber rod that makes with the speed of 100～600 mm/min by rotating speed be 10～60 rev/mins rein in the tooth device, obtain screwed longitudinal fiber screw rod;
C, screwed longitudinal fiber screw rod is sent into drying tunnel, under 110 °～150 ° temperature, carry out solidifying the first time, curing degree is reached more than 80%, obtain screwed longitudinal fiber blank screw rod;
D, screwed longitudinal fiber blank screw rod is sent into wrapping machine with the described identical speed of b step, wrapping machine will be wrapped on the screwed longitudinal fiber blank screw rod with the rotating speed identical with the b step through the fiber of resin dipping, the tooth top that twines on the former screwed longitudinal fiber blank screw rod in back becomes at the bottom of the tooth, become tooth top at the bottom of the tooth, thereby obtain being wound with the threaded bad bar of hair of transverse fiber;
E, make the bad bar of threaded hair that is wound with transverse fiber continue to enter in the rotating mould with the speed identical with the b step, rotating mould is with the rotational speed identical with above-mentioned wrapping machine, be wound with threaded bad bar of hair process preheating, gel, curing in the rotating mould that rotates of transverse fiber, obtain the thread surface smooth threaded rod semi-finished product of transverse fiber through extruding;
F, the threaded rod semi-finished product are sent into baking oven, in 120 °～160 ° final solidification temperature scope, be cured, obtain the finished product threaded rod of making by the thermosetting fibre material.
2, rotational molding technology is twined in the composite threaded rod pultrusion of band transverse fiber screw thread according to claim 1, it is characterized in that preheat temperature in the described rotating mould is that 85～95 °, gelling temp are that 145 °～160 °, solidification temperature are 130 °～150 °.
3, rotary forming equipment is twined in a kind of composite threaded rod pultrusion with the transverse fiber screw thread, successively by creel, yarn collecting wheel, tensioner, resin impregnation tank, cold mould, rein in the tooth device, solidified cell for the first time, wrapping machine, final solidified cell, the sync pulling machine is formed by connecting, sync pulling machine travel thermosetting fibre passes through creel respectively after drawing from creel with constant speed, yarn collecting wheel, tensioner, resin impregnation tank, cold mould, rein in the tooth device, solidified cell for the first time, wrapping machine, final solidified cell obtains finished product, wrapping machine comprises the winding rotating disk, it is characterized in that: be connected with rotating mould at wrapping machine, the winding rotating disk of rotating mould and wrapping machine rotates with speed, the inner chamber of rotating mould is provided with and the identical screw thread inner chamber of screw thread on the finished product threaded rod, outside at rotating mould is with heating element heater, and heating element heater and rotating mould rotate synchronously.
4, rotary forming equipment is twined in the composite threaded rod pultrusion of band transverse fiber screw thread according to claim 3, it is characterized in that the described tooth device of reining in comprises and reins in the tooth rotating disk and be installed in the tooth of reining on the tooth rotating disk of reining in and rein in the tensioner that tooth is used with fiber frame, lever jack, control, rein in the tooth rotating disk and be installed in and rein on the tooth turntable shaft, rein in the tooth turntable shaft and link to each other with motor by driving-belt.
5, rotary forming equipment is twined in the composite threaded rod pultrusion of band transverse fiber screw thread according to claim 3, a side that it is characterized in that described winding rotating disk is equipped with lever jack and fiber frame, opposite side is equipped with tensioner, the winding turntable shaft is bearing on the support and with rotating mould and links to each other, twine turntable shaft and link to each other with reductor by driving-belt, reductor is driven by drive motors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014588 CN1250387C (en) | 2004-04-08 | 2004-04-08 | Pultrude, enwinding, rotating tecnique for forming threaded bolt from composite material with transverse fiber thread, and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014588 CN1250387C (en) | 2004-04-08 | 2004-04-08 | Pultrude, enwinding, rotating tecnique for forming threaded bolt from composite material with transverse fiber thread, and equipment |
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| CN1562618A true CN1562618A (en) | 2005-01-12 |
| CN1250387C CN1250387C (en) | 2006-04-12 |
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| CN102022589A (en) * | 2010-12-22 | 2011-04-20 | 南京诺尔泰复合材料设备制造有限公司 | Method and device for preparing composite tube having axial fibers |
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| CN105644119B (en) * | 2015-12-24 | 2017-11-03 | 大连理工高邮研究院有限公司 | A kind of automatic forming device and method for making hard carbon/graphite felt cylinder material |
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| CN108914934A (en) * | 2018-09-03 | 2018-11-30 | 湖北中复能新型材料有限公司 | One kind is exempted to recycle prestressed anchor and preparation method thereof |
| CN111748073A (en) * | 2019-03-26 | 2020-10-09 | 科思创德国股份有限公司 | Method for preparing polyurethane pultrusion composite material |
| CN111748073B (en) * | 2019-03-26 | 2024-06-11 | 科思创德国股份有限公司 | Method for preparing polyurethane pultrusion composite material |
| CN110303694A (en) * | 2019-05-31 | 2019-10-08 | 北京卫星制造厂有限公司 | A kind of rapid molding device and method of continuous fiber reinforced composite materials pipe fitting |
| WO2022002784A1 (en) | 2020-06-30 | 2022-01-06 | Covestro Deutschland Ag | A polyurethane composition for preparing composites |
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| CN115923195A (en) * | 2022-11-11 | 2023-04-07 | 江苏高路复合材料有限公司 | Method for extracting resin adhered to inner wall from pultrusion die and pultrusion production process |
| CN115923195B (en) * | 2022-11-11 | 2024-05-14 | 江苏高路复合材料有限公司 | Method for taking out resin adhered on inner wall from pultrusion die and pultrusion production process |
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