CN101832908B - Device and method for testing short-cut index of glass fiber - Google Patents
Device and method for testing short-cut index of glass fiber Download PDFInfo
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- CN101832908B CN101832908B CN2010101721019A CN201010172101A CN101832908B CN 101832908 B CN101832908 B CN 101832908B CN 2010101721019 A CN2010101721019 A CN 2010101721019A CN 201010172101 A CN201010172101 A CN 201010172101A CN 101832908 B CN101832908 B CN 101832908B
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Abstract
The invention relates to a device and a method for testing the short-cut index of glass fiber. The test device comprises a yarn roll, a compressed air source, a short-cut pressure regulating valve, a jet pressure regulating valve and a short-cut spray gun. The device is characterized by also comprising a bracket and collection boxes which are fixed on the bracket and at the front side of the short-cut spray gun, wherein a front panel of each collection box is made of transparent materials and is evenly divided into a plurality of areas, and the bottom of the front panel is marked with scales corresponding to all areas; the short-cut index of the glass fiber is tested by the test device, the short-cut spray gun is started for a certain time under the suitable environment, the height of each area is read out by observing the height of short-cut yarn at each area on the front panel of the collection box through an observation tank, and the short cut index data of the glass fiber is obtained according to the read heights of all area and then summarized to obtain the short-cut index. The invention can be used for accurately, simply and fast detecting the distribution situation after short cut of the glass fiber by carrying out statistics on the distribution situations of jet yarns at all areas, thereby obtaining the short-cut index of the glass fiber.
Description
Technical field
The present invention relates to a kind of short-cut index of glass fiber proving installation and method, particularly a kind of injection yarn chopping characteristic proving installation and method.
Background technology
Be used for the short glass fibre of cutting and mainly contain four kinds, first kind is to be used for portable glass-resin lance driving device, and we are referred to as to spray yarn; Second kind is the manufacturing that is used for pre-type body; The third is to be used to make clear sheet; The 4th kind is to be used for manufacture sheet molding compound (SMC) and BMC (DMC).
Wherein, spray yarn and be used for spray deposition processing, it is to be mixed with two kinds of polyester of initiating agent and promoter respectively from the ejection of spray gun both sides, simultaneously with the glass rove that cuts off, spray by the spray gun center, it is evenly mixed with resin, deposit on the mould, when depositing to certain thickness, use the running roller compacting, make the fiber impregnated with resin, get rid of bubble, solidify the back and become goods.The weak point of yarn is cut situation in this process, dispersion and distribution situation after short the cutting, and the short convergence of cutting the back yarn has or not lousiness, yarn group, static and wetting-out rate etc. all can influence the quality of final products.Its short-and-medium even distribution of cutting back fiber itself is the most important condition that reaches the product uniformity coefficient.Dispersing uniformity is good, and the material abscess that makes is even, and mechanical property is higher.
The factor that influences these performances mainly contains following three kinds: the one, and fibre diameter, this factor can determine and control at an easy rate, Wang Fengshan draws in " the glass filament diameter is to short cut type roving performance impact analysis of experiments " literary composition: filament diameter is more little, and the precursor convergence is good more.Certainly, the control of filament diameter also will decide according to product needed and production technology; We can be by adjusting stable wire drawing machine rotating speed in actual production, guarantees that method such as minimizing of the homogeneity of glass metal viscosity and the bushing temperature difference comes the controlling fiber diameter; The 2nd, glass fiber infiltration agent comprises the character of film forming agent and some a small amount of additive, and consumption etc. especially go wrong when immersion agent is changed raw material easily, by the mensuration to the precursor short-cut index, can in time find these problems; The 3rd, the drying system of glass fibre comprises the cake quality, and the immersion agent migration etc.These factors influence each other, and have determined the chopping characteristic that precursor and glass are final jointly.Can be about more contents of short glass fiber referring to the 341st～344 page of the continuous glass fibre manufacturing process (the 3rd edition, 2008) of K.L.Loewenstein.
According to data, adopt screening both at home and abroad usually, sedimentation, methods such as range estimation detect the granularity of chopped glass fiber, and wherein patent 200420040731.0 has been announced a kind of size-grade distribution detector of testing screen over-size.Liu Ying etc. delivered the article of a piece " detection method of roving quality " by name in the glass fibre magazine, ocular estimate is had introduction.But, original these detection methods are difficult to detection by quantitative and go out above-mentioned performance, and in the actual production technological parameter there is strict requirement, humiture such as environment, the relative position of cutting machine and mould, running parameter of cutting machine or the like, previous methods can not agree with the actual conditions in user's use well.The short-cut index test but can as far as possible closely be simulated the client production scene, reflects these situations in client's use well.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: a kind of above-mentioned defective that solved is provided, can accurately, simply, promptly detects the apparatus and method of the distribution situation after glass chopped.
The technical solution adopted for the present invention to solve the technical problems is: a kind of short-cut index of glass fiber proving installation, comprise compressed air gas source, the short power pressure regulator valve that hobs, expulsion pressure pressure regulator valve and the short spray gun of cutting, compressed air gas source hobs the power pressure regulator valve with weak point and is connected respectively with the expulsion pressure pressure regulator valve, short power pressure regulator valve and the expulsion pressure pressure regulator valve of hobbing cut spray gun and is connected with lacking, it is characterized in that: also comprise support, on the support, short front side of cutting spray gun is fixed with the collection box, the front panel of collecting box adopts transparent material, front panel is divided into a plurality of zones, corresponding each zone, front panel bottom indicates scale, on the support, corresponding front panel scale position is provided with the observation groove.
The front panel of collecting box is a clear glass, and rear panel is a corrosion resistant plate, and the right side is a screen door; Front panel is divided into 10～12 zones, is preferably 11 zones; Initiation region and short cut that distance is 700～800mm between the spray gun is preferably 750mm; Each regional width is 300～340mm, is preferably 305mm; Distance is 120～180mm between front panel and the rear panel, is preferably 150mm.
Use said apparatus that short-cut index of glass fiber is detected, detection method is: a kind of short-cut index of glass fiber method of testing may further comprise the steps:
The temperature of a, adjusting test environment is 20～30 ℃, and humidity is 45～55%;
B, yarn group is positioned over short-cut index of glass fiber proving installation left side, draw the short spray gun of cutting of yarn feeding from yarn group inboard, open compressed air gas source, hob the power pressure regulator valve and the expulsion pressure pressure regulator valve is regulated short hob power and expulsion pressure respectively by short, it is 35 ± 5PSI that weak point hobs power, and expulsion pressure is 25 ± 5PSI;
C, unlatching weak point are cut spray gun, pick up counting simultaneously, move to stop after 55～65 seconds;
D, observe the height of each short yarn cutting in zone on the front panel of collecting box, read each regional reading by observing groove;
E, the short yarn cutting that will collect in the box collect and weighing, and the collected short yarn cutting of weighing is 300～330 grams, and test data is effective; Not in above-mentioned scope, change working time or regulate and shortly hob power or expulsion pressure is tested again;
F, the height of reading according to each zone draw the short-cut index of glass fiber data, and adding up obtains short-cut index.
The beneficial effect that the present invention had is: short-cut index of glass fiber proving installation and method are by adding up in each regional distribution situation spraying yarn, can accurately, simply, promptly detect the distribution situation after glass chopped, thereby draw short-cut index of glass fiber.
Description of drawings
Fig. 1 is the structural representation of short-cut index of glass fiber proving installation among the present invention.
Among the figure 1, yarn group; 2, compressed air gas source; 3, the short power pressure regulator valve that hobs; 4, expulsion pressure pressure regulator valve; 5, the short spray gun of cutting; 6, collect box; 7, front panel; 8, rear panel; 9, screen door; 10, observe groove; 11, support.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described further:
As shown in Figure 1, compressed air gas source 2 hobs power pressure regulator valve 3 with weak point and is connected respectively with expulsion pressure pressure regulator valve 4, short power pressure regulator valve 3 and the expulsion pressure pressure regulator valve 4 of hobbing cut spray gun 5 and is connected with lacking, on the support 11, short front side of cutting spray gun 5 is fixed with and collects box 6, the front panel 7 of collecting box 6 adopts transparent material, front panel 7 is divided into a plurality of zones, and corresponding each zone, front panel 7 bottoms indicates scale, and scale is with 1 " be unit; On the support 11, corresponding front panel 7 scale positions are provided with and observe groove 10; The front panel 7 of collecting box 6 is a clear glass, and rear panel 8 is a corrosion resistant plate, and the right side is a screen door 9; Front panel 7 is divided into 10～12 zones, initiation region and short cut that distance is 700～800mm between the spray gun 5, and each regional width is 300～340mm; Distance is 120～180mm between front panel 7 and the rear panel 8.
When using this device to test short-cut index of glass fiber, probe temperature is set at 25 ± 5 ℃; Humidity is set at 50 ± 5%, and the humiture for the treatment of environment begins test after reaching requirement; Yarn group 1 is positioned over short-cut index of glass fiber testing apparatus left side, roll into a ball 1 inboard from yarn and draw the short spray gun 5 of cutting of yarn feeding, open compressed air gas source 2, adjusts respectively to lack and hob power and expulsion pressure by short power pressure regulator valve 3 and the expulsion pressure pressure regulator valve 4 of hobbing, the preferred short power that hobs is that (0.241 ± 0.034MPa), preferred expulsion pressure is 25 ± 5PSI (0.172 ± 0.034MPa) to 35 ± 5PSI; Unlatching is short cuts spray gun 5 and uses manual time-keeping, moves to stop after 55～65 seconds, can adopt working time 60 seconds; Observe the height of each short yarn cutting in zone on the front panel 7 of collecting box 6 by observing groove 10, with 1/4 " serve as to estimate unit, read each regional height and record; Collect and in weighing, be accurate to 0.001kg collecting short yarn cuttings in the box 6, the collected short yarn cutting of weighing is 300～330 grams, and test data is effective, not in above-mentioned scope, changes working time or the adjusting weak point hobs power or expulsion pressure is tested again; The height of reading according to each zone draws the short-cut index of glass fiber data, and adding up obtains short-cut index.
Embodiment one: front panel 7 is divided into 11 zones, initiation region and short cut that distance is 750mm between the spray gun 5, each regional width is 305mm, between front panel 7 and the rear panel 8 apart from being 150mm; The temperature of regulating test environment is 20 ℃, and humidity is 45%; Yarn group 1 is positioned over short-cut index of glass fiber proving installation left side, roll into a ball 1 inboard from yarn and draw the short spray gun 5 of cutting of yarn feeding, open compressed air gas source 2, regulates respectively to lack and hob power and expulsion pressure by short power pressure regulator valve 3 and the expulsion pressure pressure regulator valve 4 of hobbing, it is 35PSI that weak point hobs power, and expulsion pressure is 25PSI; Unlatching is short cuts spray gun 5, picks up counting simultaneously, moves to stop after 60 seconds; Observe the height of each short yarn cutting in zone on the front panel 7 of collecting box 6 by observing groove 10, read each regional reading and be respectively 0.25,0.25,0.25,0.25,0.5,0.75,0.75,1,0.75,0.25,0.25; The short yarn cutting of collecting in the box 6 is collected and weighing, short yarn cutting 327 grams that weighing is collected, the height of reading according to each zone draws the short-cut index of glass fiber data, and adding up and obtaining short-cut index is 5.25.
Embodiment two: it is 38PSI that the adjusting weak point hobs power, be 59 seconds working time, all the other are with embodiment one, the regional reading of each that draws is respectively 0.25,0.25,0.25,0.75,1,1.25,1.25,1.25,0.75,0.5,0.25, short yarn cutting 328 grams that weighing is collected, the short-cut index that obtains is 7.75.
Embodiment three: it is 30PSI that the adjusting weak point hobs power, expulsion pressure is 23PSI, be 63 seconds working time, all the other are with embodiment one, the regional reading of each that draws is respectively 0.25,0.25,0.25,0.25,0.5,0.75,1,1,0.75,0.5,0.25, short yarn cutting 315 grams that weighing is collected, the short-cut index that obtains is 5.75.
Claims (5)
1. short-cut index of glass fiber proving installation, comprise compressed air gas source (2), the short power pressure regulator valve (3) that hobs, expulsion pressure pressure regulator valve (4) and the short spray gun (5) of cutting, compressed air gas source (2) hobs power pressure regulator valve (3) with weak point and is connected respectively with expulsion pressure pressure regulator valve (4), short power pressure regulator valve (3) and the expulsion pressure pressure regulator valve (4) of hobbing cut spray gun (5) and is connected with lacking, it is characterized in that: also comprise support (11), on the support (11), short front side of cutting spray gun (5) is fixed with collects box (6), the front panel (7) of collecting box (6) adopts transparent material, front panel (7) is divided into a plurality of zones, corresponding each zone, front panel (7) bottom indicates scale, on the support (11), corresponding front panel (7) scale position is provided with observes groove (10).
2. short-cut index of glass fiber proving installation as claimed in claim 1 is characterized in that: the front panel (7) of collecting box (6) is a clear glass, and rear panel (8) is a corrosion resistant plate, and the right side is screen door (9).
3. short-cut index of glass fiber proving installation as claimed in claim 1, it is characterized in that: described front panel (7) is divided into 10～12 zones, initiation region and short cut that distance is 700～800mm between the spray gun (5), each regional width is 300～340mm.
4. short-cut index of glass fiber proving installation as claimed in claim 2 is characterized in that: distance is 120～180mm between front panel (7) and the rear panel (8).
5. short-cut index of glass fiber method of testing that adopts the described short-cut index of glass fiber proving installation of claim 1 may further comprise the steps:
The temperature of a, adjusting test environment is 20～30 ℃, and humidity is 45～55%;
B, yarn group (1) is positioned over short-cut index of glass fiber proving installation left side, draw the short spray gun (5) of cutting of yarn feeding from yarn group (1) inboard, open compressed air gas source (2), regulate respectively to lack and hob power and expulsion pressure by short power pressure regulator valve (3) and the expulsion pressure pressure regulator valve (4) of hobbing, it is 35 ± 5PSI that weak point hobs power, and expulsion pressure is 25 ± 5PSI;
C, unlatching weak point are cut spray gun (5), pick up counting simultaneously, move to stop after 55～65 seconds;
D, observe the height that the front panel (7) of collecting box (6) is gone up each short yarn cutting in zone, read each regional reading by observing groove (10);
E, the short yarn cutting that will collect in the box (6) collect and weighing, and the collected short yarn cutting of weighing is 300～330 grams, and test data is effective; Not in above-mentioned scope, change working time or regulate and shortly hob power or expulsion pressure is tested again;
F, the height of reading according to each zone draw the short-cut index of glass fiber data, and adding up obtains short-cut index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101721019A CN101832908B (en) | 2010-05-14 | 2010-05-14 | Device and method for testing short-cut index of glass fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101721019A CN101832908B (en) | 2010-05-14 | 2010-05-14 | Device and method for testing short-cut index of glass fiber |
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| Publication Number | Publication Date |
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| CN101832908A CN101832908A (en) | 2010-09-15 |
| CN101832908B true CN101832908B (en) | 2011-09-28 |
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| CN2010101721019A Expired - Fee Related CN101832908B (en) | 2010-05-14 | 2010-05-14 | Device and method for testing short-cut index of glass fiber |
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| CN102519825B (en) * | 2011-12-15 | 2014-12-10 | 重庆国际复合材料有限公司 | Detection equipment for bundling property of glass fiber chopper yarns and detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069037A1 (en) * | 2002-02-11 | 2003-08-21 | Ppg Industries Ohio, Inc. | Rovings and methods and systems for producing rovings |
| CN201697861U (en) * | 2010-05-14 | 2011-01-05 | 淄博中材庞贝捷金晶玻纤有限公司 | Glass fibre short-cutting index test device |
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- 2010-05-14 CN CN2010101721019A patent/CN101832908B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069037A1 (en) * | 2002-02-11 | 2003-08-21 | Ppg Industries Ohio, Inc. | Rovings and methods and systems for producing rovings |
| CN201697861U (en) * | 2010-05-14 | 2011-01-05 | 淄博中材庞贝捷金晶玻纤有限公司 | Glass fibre short-cutting index test device |
Non-Patent Citations (1)
| Title |
|---|
| 李伟.高压均质机在浸润剂配制中的应用.《玻璃纤维》.2006,(第2期),20-22. * |
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Inventor after: Wang Baoguo Inventor before: Zhang Xinlin Inventor before: Li Xiuhong |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG XINLIN LI XIUHONG TO: WANG BAOGUO |
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Address after: 202 No. 1, 255086, Central Road, Zhangdian District, Shandong, Zibo Patentee after: Zibo Sinoma Glass Fiber Co., Ltd. Address before: 202 No. 1, 255086, Central Road, Zhangdian District, Shandong, Zibo Patentee before: Zibo Sinoma Pangbei Jinjing Fiberglass Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20110928 Termination date: 20180514 |