CN106843072B - Glass fiber yarn density yarn matching device and yarn matching method thereof - Google Patents
Glass fiber yarn density yarn matching device and yarn matching method thereof Download PDFInfo
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- CN106843072B CN106843072B CN201710175366.6A CN201710175366A CN106843072B CN 106843072 B CN106843072 B CN 106843072B CN 201710175366 A CN201710175366 A CN 201710175366A CN 106843072 B CN106843072 B CN 106843072B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a glass fiber yarn density yarn matching device; the technical problems to be solved are as follows: aiming at the technical problem that the artificial error exists in the yarn matching of the yarn groups in the prior art. The technical scheme is as follows: the glass fiber yarn density yarn matching device comprises a frame table with a working table surface, an industrial computer, a display, a code printer, weighing equipment, a code scanning gun and at least twenty yarn matching tables for placing yarn groups. The invention also discloses a method for carrying out industrial control computer yarn group yarn matching by adopting the glass fiber yarn density yarn matching device. The glass fiber yarn density yarn matching device has the advantages that intelligent automatic yarn matching is realized, and the possibility of yarn matching errors caused by artificial errors is reduced.
Description
Technical Field
The invention relates to the application field of glass fiber manufacturing technology, in particular to a glass fiber yarn density yarn matching device.
Background
With the continuous expansion of market demands of glass fiber products in recent years, customers have the characteristics of more varieties, small batches and more batches of products, and have higher requirements on the quality of the products, especially on the linear density of military enterprises. In order to achieve better control of the linear density, customers often use two or more yarn groups in pairs to achieve fine control of the linear density.
At present, in order to better meet the requirements of customers, manual yarn matching is adopted for yarn groups; however, there is an artificial error in manually matching yarn groups.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problem that the artificial error exists in the yarn matching of the yarn groups in the prior art.
The invention aims to provide a glass fiber yarn density yarn matching device, which realizes intelligent automatic yarn matching and reduces the possibility of yarn matching errors caused by artificial errors.
In order to solve the technical problems, the invention adopts the following technical scheme:
the glass fiber yarn density yarn matching device comprises a frame table with a working table surface, an industrial computer, a display, a code printer, weighing equipment, a code scanning gun and at least twenty yarn matching tables for placing yarn groups;
the working table surface is divided into an information acquisition area and a yarn group placement area; the industrial control computer, the code printer, the display, the weighing equipment and the code scanning gun are all positioned in an information acquisition area on the workbench surface, the display is electrically connected with the industrial control computer, and the code scanning gun is electrically connected with the industrial control computer; the weighing equipment is used for measuring the weight of the yarn group; the code printer prints bar codes in batches, and sticks the bar codes on all yarn groups, and the bar codes are used as the basis for identifying the identity of the yarn groups;
all yarn matching tables are arranged in a yarn group placement area on the workbench in an array mode, and one yarn matching table is correspondingly used for placing one yarn group; an ECU unit and a communication conversion module are arranged in the yarn ball placement area, the ECU unit is connected with the communication conversion module, and the communication conversion module is connected with an industrial control computer;
the yarn matching table comprises a tray arranged in a yarn group placing area, a stand column for placing yarn groups is vertically arranged on the tray, a detection switch for detecting whether the yarn groups are placed on the tray is arranged below the tray, and the detection switch is connected with the ECU unit.
In the technical scheme of the invention, each spindle position of the counterweight table consists of a yarn ball tray, a yarn ball detection switch (a limit switch or a grating sensing component and the like) at the bottom and an LED lamp. When the yarn group is placed on the yarn group tray, the yarn group sinks under the action of the self weight of the yarn group, and the tray presses down the limit switch contacts to send out signals; after the yarn group is taken out, the supporting plate resets under the action of the spring, and the limit switch sends out a signal.
In the technical scheme of the invention, an industrial control computer is adopted, an industrial control computer system is the brain of the whole set of sorting device, and the work of identifying, weighing, putting in, sorting, marking and the like of yarn groups is finished by a software system running on the industrial control computer.
According to the technical scheme, the weighing device is an electronic balance, and the precision is 0.0001g, 0.001g, 0.01g, 0.1g, 1g, 10g, 100g or 1000g.
The technical scheme of the invention is improved, and the detection switch is a limit switch or a grating switch.
The yarn distribution table further comprises an LED lamp which is connected with the ECU unit.
According to the technical scheme, the ECU unit and the communication conversion module are communicated by adopting an RS485 communication bus protocol based on a Modbus communication protocol. The ECU unit in the technical scheme of the invention is an ECU embedded computing unit, each ECU unit controls the IO input and output of 6 yarn group placement ports, and a 5V direct current system is adopted for IO control. The ECU receives instructions from an industrial control computer software system while abutting against the yarn group inlet, is mainly completed through a modbus communication protocol, adopts an RS485 differential signal bus, and has high anti-interference capability. In consideration of the requirement of communication safety isolation, the RS485 signal is not directly connected to the industrial control computer, but is converted into the Ethernet through the communication conversion module, and then is connected to the industrial control computer.
The yarn matching table further comprises a reset spring for resetting the tray.
The invention provides a method for carrying out industrial control computer yarn group yarn matching by adopting a glass fiber yarn density yarn matching device, which comprises the following steps:
a. printing bar codes in batches by adopting a code printer, and pasting the bar codes on all yarn groups, wherein the bar codes are used as the basis for identifying the identity of the yarn groups;
b. the bar code on the yarn ball in the step a of the code scanning gun is used, the information in the bar code is recorded into an industrial computer, and meanwhile, the weight of the yarn ball is measured through weighing equipment, and the bar code information corresponding to the weight is recorded into the industrial computer for storage;
c. b, placing the yarn group in the step b on a tray of a yarn distribution table, wherein the tray descends under the weight action of the yarn group, detecting the action of a switch, generating a wire number, transmitting the wire number to an ECU unit, and transmitting the yarn group position information to an industrial control computer through a communication conversion module; meanwhile, the ECU unit instructs the corresponding LED indicator lamp to display red color, and the position of the yarn group is displayed on a display of the industrial control computer;
d. repeating the step c until yarn groups are placed on all the yarn matching tables;
e. the method comprises the steps of carrying out yarn matching of yarn groups by an industrial computer, adding and matching two, three or more yarn groups according to weight, and judging whether the added weight of the yarn groups meets the set weight requirement or not by the industrial computer;
f. when the requirements are met, the industrial control computer sends out a green light of an LED indicator lamp of the yarn matching table where the yarn group is positioned to be on; otherwise, the red light is on.
According to the method for matching yarns by using the industrial computer yarn groups, two or more pairs of yarn group linear densities are realized according to design requirements. The main technical route is as follows: firstly, calculating the weight qualification range of a single yarn group and a pairing yarn group according to the qualification range of the fixed length and the linear density of the yarn; then pasting a bar code on each yarn group as the basis for identifying the yarn groups by a computer; after the yarn group with the label is scanned by a code scanning gun, weighing the yarn group on an electronic balance, and recording the weight of the bar code yarn group by an industrial control computer; placing yarn groups on a tray of a yarn distribution table, enabling the tray to descend under the action of the weight of the yarn groups, enabling a limit switch/grating switch to act, generating a wire number, transmitting the wire number to an ECU unit, transmitting information yarn group position information to an industrial control computer through a communication conversion module, enabling an ECU unit to instruct a corresponding LED lamp to display red color, displaying the position of the yarn groups on a display connected with the industrial control computer, and standing a column in the middle of the tray to prevent the yarn groups from collapsing; the steps of labeling, code scanning, weighing and yarn releasing are repeated, the computer automatically performs one-to-one pairing calculation on the weight of yarn groups on the yarn matching table, when two or more weight yarn groups meeting the requirements appear on the yarn groups placed on the weight matching table, the LED lamps corresponding to yarn group spindle positions corresponding to the weight matching table display green, the yarn groups on the green light spindle positions are the successfully paired yarn groups, and the calculated linear density of the yarn groups meets the set requirements. And taking the successfully paired yarns out of the counterweight table, and automatically recording yarn group information and pairing information by a computer.
To achieve continuity and reliability of yarn distribution, the yarn is generally distributed after the yarn on the yarn distribution table spindle is fully filled. When the counter weight platform is full of yarn, the yarn matching platform has a plurality of pairs of yarn groups which can be successfully matched, and the computer lights up according to the selection logic. For example, the computer calculates the yarn groups with the highest pairing success times as the preferential pairing.
The method comprises the steps that an industrial control computer in the method records the identity of each yarn group recorded by a code scanning gun, the weight input by a weighing device and the position information input by a yarn distribution table, when the number of the yarn groups placed by the yarn distribution table exceeds the number of yarn distribution groups (2 or 3 or more), an industrial control computer program automatically carries out yarn distribution calculation according to the weight, when the requirements are met, the industrial control computer sends out green light display of the spindle position of the yarn distribution group to be on, otherwise, red light is on, for example, 2 groups of yarn distribution groups are on, green light of the spindle position of 2 yarn distribution tables is on, and the other groups of yarn distribution groups are on; when the yarn matching is not satisfied, the red light is lightened; the spindle position traffic lights of the yarn matching table without yarn are not lightened, which indicates no yarn group. Further, when the number of yarn groups placed on the yarn matching table is far greater than the number of yarn matching groups, if the yarn matching table is full, the yarn matching groups meeting the weight requirement can be in a plurality of groups, and a computer program priority yarn matching scheme is designed, for example, the yarn matching is set to preferentially match middle-order yarn and then the yarn is matched to side-order yarn; the yarn matching priority can also be set to match yarn from the edge number and then to the middle number, thereby realizing accurate yarn matching.
After the yarn group with successful yarn matching is taken away, the identity information of the group of yarn groups is cleared.
Compared with the prior art, the invention has the beneficial effects that:
1. the glass fiber yarn density yarn matching device realizes intelligent automatic yarn matching and reduces the possibility of yarn matching errors caused by artificial errors.
2. The glass fiber yarn density yarn distribution device adopts the processes of yarn group labeling, code scanning, weighing and yarn group placement, and an industrial control computer records yarn group production information, label information, yarn group weight and yarn group position information in real time, thereby providing convenience for yarn group tracing.
3. The glass fiber yarn density yarn matching device adopts a method of memorizing yarn group positions after weighing to match yarns, and compared with the traditional method of arranging a weight detection switch under each spindle position, the glass fiber yarn density yarn matching device greatly reduces the cost of a yarn matching table.
Drawings
Fig. 1 is a layout diagram of the present glass fiber yarn density yarn matching device.
Fig. 2 is a schematic view of the structure of the yarn matching table.
Fig. 3 is a flow chart of a yarn matching method of the yarn matching device.
Fig. 4 is an electrical control schematic block diagram of the yarn matching method of the present yarn matching device.
In the figure: 1-a code printer 2-a weighing device 3-a display 4-an LED lamp 5-a tray 6-a column 10-a yarn group 11-a detection switch.
Detailed Description
The technical scheme of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order to make the contents of the present invention more comprehensible, the present invention is further described with reference to fig. 1 to 4 and the detailed description below.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples:
referring to fig. 1, the glass fiber yarn density yarn matching device of the embodiment comprises a machine frame with a working table surface, an industrial control computer, a display 3, a code printer 1, a weighing device 2, a code scanning gun and at least twenty yarn matching tables for placing yarn groups. The weighing device is an electronic balance 2, and the precision is 0.0001g or 0.001g or 0.01g or 0.1g or 1g or 10g or 100g or 1000g.
Referring to fig. 1, the working table is divided into an information acquisition area and a yarn cluster placement area; the industrial control computer, the code printer 1, the display 3, the weighing equipment 2 and the code scanning gun are all positioned in an information acquisition area on the workbench surface, the display is electrically connected with the industrial control computer, and the code scanning gun is electrically connected with the industrial control computer; the weighing equipment is used for measuring the weight of the yarn group; the code printer prints bar codes in batches, and sticks the bar codes on all yarn groups, and the bar codes are used as the basis for identifying the identity of the yarn groups;
all yarn matching tables are arranged in a yarn group placement area on the workbench in an array mode, and one yarn matching table is correspondingly used for placing one yarn group; an ECU unit and a communication conversion module are arranged in the yarn ball placement area, the ECU unit is connected with the communication conversion module, and the communication conversion module is connected with an industrial control computer; and the ECU unit and the communication conversion module are communicated by adopting an RS485 communication bus protocol based on a Modbus communication protocol. The ECU units are ECU embedded computing units, each ECU unit controls the IO input and output of 6 yarn group placement ports, and a 5V direct current system is adopted for IO control. The ECU receives instructions from an industrial control computer software system while abutting against the yarn group inlet, is mainly completed through a modbus communication protocol, adopts an RS485 differential signal bus, and has high anti-interference capability. In consideration of the requirement of communication safety isolation, the RS485 signal is not directly connected to the industrial control computer, but is converted into the Ethernet through the communication conversion module, and then is connected to the industrial control computer.
Referring to fig. 2, the yarn matching table includes a tray 5 disposed in a yarn group placement area, a column 6 for placing yarn groups is vertically disposed on the tray, and a detection switch 11 for detecting whether yarn groups 10 are placed on the tray is disposed below the tray, the detection switch being connected to the ECU unit. The detection switch 11 is a limit switch or a grating switch. The yarn distribution table further comprises an LED lamp 4, and the LED lamp is connected with the ECU unit. The yarn matching table also comprises a reset spring for resetting the tray.
The method for carrying out industrial control computer yarn group yarn matching by adopting the glass fiber yarn density yarn matching device comprises the following steps:
a. printing bar codes in batches by adopting a code printer, and pasting the bar codes on all yarn groups, wherein the bar codes are used as the basis for identifying the identity of the yarn groups;
b. the bar code on the yarn ball in the step a of the code scanning gun is used, the information in the bar code is recorded into an industrial computer, and meanwhile, the weight of the yarn ball is measured through weighing equipment, and the bar code information corresponding to the weight is recorded into the industrial computer for storage;
c. b, placing the yarn group in the step b on a tray of a yarn distribution table, wherein the tray descends under the weight action of the yarn group, detecting the action of a switch, generating a wire number, transmitting the wire number to an ECU unit, and transmitting the yarn group position information to an industrial control computer through a communication conversion module; meanwhile, the ECU unit instructs the corresponding LED indicator lamp to display red color, and the position of the yarn group is displayed on a display of the industrial control computer;
d. repeating the step c until yarn groups are placed on all the yarn matching tables;
e. the method comprises the steps of carrying out yarn matching of yarn groups by an industrial computer, adding and matching two, three or more yarn groups according to weight, and judging whether the added weight of the yarn groups meets the set weight requirement or not by the industrial computer;
f. when the requirements are met, the industrial control computer sends out green lights of the yarn matching table where the yarn groups are positioned; otherwise, the red light is on.
The method for matching yarn in industrial computer yarn group is to realize two or more pairs of yarn group linear density according to the design requirement.
The main technical route is as follows: firstly, calculating the weight qualification range of a single yarn group and a pairing yarn group according to the qualification range of the fixed length and the linear density of the yarn; then pasting a bar code on each yarn group as the basis for identifying the yarn groups by a computer; after the yarn group with the label is scanned by a code scanning gun, weighing the yarn group on an electronic balance, and recording the weight of the bar code yarn group by an industrial control computer; placing yarn groups on a tray of a yarn distribution table, enabling the tray to descend under the action of the weight of the yarn groups, enabling a limit switch/grating switch to act, generating a wire number, transmitting the wire number to an ECU unit, transmitting information yarn group position information to an industrial control computer through a communication conversion module, enabling an ECU unit to instruct a corresponding LED lamp to display red color, displaying the position of the yarn groups on a display connected with the industrial control computer, and standing a column in the middle of the tray to prevent the yarn groups from collapsing; the steps of labeling, code scanning, weighing and yarn releasing are repeated, the computer automatically performs one-to-one pairing calculation on the weight of yarn groups on the yarn matching table, when two or more weight yarn groups meeting the requirements appear on the yarn groups placed on the weight matching table, the LED lamps corresponding to yarn group spindle positions corresponding to the weight matching table display green, the yarn groups on the green light spindle positions are the successfully paired yarn groups, and the calculated linear density of the yarn groups meets the set requirements. And taking the successfully paired yarns out of the counterweight table, and automatically recording yarn group information and pairing information by a computer.
The method comprises the steps that an industrial control computer in the method records the identity of each yarn group recorded by a code scanning gun, the weight input by a weighing device and the position information input by a yarn distribution table, when the number of the yarn groups placed by the yarn distribution table exceeds the number of yarn distribution groups (2 or 3 or more), an industrial control computer program automatically carries out yarn distribution calculation according to the weight, when the requirements are met, the industrial control computer sends out green light display of the spindle position of the yarn distribution group to be on, otherwise, red light is on, for example, 2 groups of yarn distribution groups are on, green light of the spindle position of 2 yarn distribution tables is on, and the other groups of yarn distribution groups are on; when the yarn matching is not satisfied, the red light is lightened; the spindle position traffic lights of the yarn matching table without yarn are not lightened, which indicates no yarn group. Further, when the number of yarn groups placed on the yarn matching table is far greater than the number of yarn matching groups, if the yarn matching table is full, the yarn matching groups meeting the weight requirement can be in a plurality of groups, and a computer program priority yarn matching scheme is designed, for example, the yarn matching is set to preferentially match middle-order yarn and then the yarn is matched to side-order yarn; the yarn matching priority can also be set to match yarn from the edge number and then to the middle number, thereby realizing accurate yarn matching.
To achieve continuity and reliability of yarn distribution, the yarn is generally distributed after the yarn on the yarn distribution table spindle is fully filled. When the counter weight platform is full of yarn, the yarn matching platform has a plurality of pairs of yarn groups which can be successfully matched, and the computer lights up according to the selection logic. For example, the computer calculates the yarn groups with the highest pairing success times as the preferential pairing.
Examples: the X product of the company is paired in pairs, the graticule density is 220-227tex, and the weight range of qualified products after calculation is 788-792g
The test was carried out on a self-made yarn preparation table and the actual linear density measured after pairing is shown in table 1 below:
table 1 actual line density meter for post-pairing measurement
The yarn distribution table provided by the embodiment realizes intelligent automatic yarn distribution, and reduces the possibility of yarn distribution errors caused by artificial errors.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The glass fiber yarn density yarn matching device is characterized by comprising a frame table with a working table surface, an industrial control computer, a display, a code printer, weighing equipment, a code scanning gun and at least twenty yarn matching tables for placing yarn groups;
the working table surface is divided into an information acquisition area and a yarn group placement area; the industrial control computer, the code printer, the display, the weighing equipment and the code scanning gun are all positioned in an information acquisition area on the workbench surface, the display is electrically connected with the industrial control computer, and the code scanning gun is electrically connected with the industrial control computer; the weighing equipment is used for measuring the weight of the yarn group; the code printer prints bar codes in batches, and sticks the bar codes on all yarn groups, and the bar codes are used as the basis for identifying the identity of the yarn groups;
all yarn matching tables are arranged in a yarn group placement area on the workbench in an array mode, and one yarn matching table is correspondingly used for placing one yarn group; an ECU unit and a communication conversion module are arranged in the yarn ball placement area, the ECU unit is connected with the communication conversion module, and the communication conversion module is connected with an industrial control computer;
the yarn matching table comprises a tray arranged in a yarn group placing area, a stand column for placing yarn groups is vertically arranged on the tray, a detection switch for detecting whether the yarn groups are placed on the tray is arranged below the tray, and the detection switch is connected with the ECU unit.
2. The glass fiber yarn density yarn matching device according to claim 1, wherein the weighing equipment is an electronic balance with an accuracy of 0.0001g or 0.001g or 0.01g or 0.1g or 1g or 10g or 100g or 1000g.
3. The glass fiber yarn density yarn matching device as in claim 1, wherein the detection switch is a limit switch or a grating switch.
4. The glass fiber yarn density yarn matching device as in claim 1, wherein the yarn matching station further comprises an LED light, the LED light being connected to the ECU unit.
5. The yarn distribution device for glass fiber yarn density according to claim 1, wherein the ECU unit and the communication conversion module communicate with each other by using an RS485 communication bus protocol based on a Modbus communication protocol.
6. The glass fiber yarn density yarn dispensing apparatus of claim 1 wherein the yarn dispensing station further comprises a return spring for tray return.
7. A method for performing industrial computer yarn group yarn matching by using the glass fiber yarn density yarn matching device as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps:
a. printing bar codes in batches by adopting a code printer, and pasting the bar codes on all yarn groups, wherein the bar codes are used as the basis for identifying the identity of the yarn groups;
b. the bar code on the yarn ball in the step a of the code scanning gun is used, the information in the bar code is recorded into an industrial computer, and meanwhile, the weight of the yarn ball is measured through weighing equipment, and the bar code information corresponding to the weight is recorded into the industrial computer for storage;
c. b, placing the yarn group in the step b on a tray of a yarn distribution table, wherein the tray descends under the weight action of the yarn group, detecting the action of a switch, generating a wire number, transmitting the wire number to an ECU unit, and transmitting the yarn group position information to an industrial control computer through a communication conversion module; meanwhile, the ECU unit instructs the corresponding LED indicator lamp to display red color, and the position of the yarn group is displayed on a display of the industrial control computer;
d. repeating the step c until yarn groups are placed on all the yarn matching tables;
e. the method comprises the steps of carrying out yarn matching of yarn groups by an industrial computer, adding and matching two, three or more yarn groups according to weight, and judging whether the added weight of the yarn groups meets the set weight requirement or not by the industrial computer;
f. when the requirements are met, the industrial control computer sends out green lights of the yarn matching table where the yarn groups are positioned; otherwise, the red light is on.
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| CN201710175366.6A CN106843072B (en) | 2017-03-22 | 2017-03-22 | Glass fiber yarn density yarn matching device and yarn matching method thereof |
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| CN206657209U (en) * | 2017-03-22 | 2017-11-21 | 中材科技股份有限公司 | A kind of glass fiber yarn line density matches somebody with somebody yarn feeding device |
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2017
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| EP0459668A1 (en) * | 1990-05-18 | 1991-12-04 | E.I. Du Pont De Nemours And Company | Electronic creel mapping |
| CN102515503A (en) * | 2011-11-18 | 2012-06-27 | 巨石集团有限公司 | Method and device for regulating linear density of glass fiber through correcting drawing flow in real time |
| CN203024843U (en) * | 2012-11-28 | 2013-06-26 | 巨石集团有限公司 | On-line weighing device for glass fiber yarn |
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